WO2014101836A1

WO2014101836A1 - Method, device and system for accessing station

Info

Publication number: WO2014101836A1
Application number: PCT/CN2013/090724
Authority: WO
Inventors: 张亮亮; 蔺波; 常俊仁
Original assignee: 华为技术有限公司
Priority date: 2012-12-27
Filing date: 2013-12-27
Publication date: 2014-07-03
Also published as: CN103906176B; CN103906176A

Abstract

Disclosed are a method, device and system for accessing stations. The method in the embodiments of the present invention comprises: receiving a first message sent by a second station, the first message containing first configuration information, the first configuration information containing configuration information about a scheduling request (SR), or configuration information about a sounding reference signal (SRS), or configuration information used for sending data; and according to the first configuration information, sending first access information to a first station so as to access the first station to perform communication, the first access information being the SR or the SRS, or ACK or NACK, or the data.

Description

Method, device and system for accessing site

This application claims priority to Chinese Patent Application No. 201210579202.7, entitled "A Method, Apparatus and System for Accessing Sites", filed on December 27, 2012, the entire contents of which are incorporated by reference. In this application. Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, device, and system for accessing a site. Background technique

With the development of mobile communication systems, the transmission rate and service quality that communication systems can provide are getting higher and higher, and user services are also placing higher and higher requirements on the transmission rate of communication systems. Third Generation Partnership Project ^{(3 rd Generation Partnership Project, 3GPP} ) introduces a carrier aggregation (CA, Carrier Aggregation) technology, so that without a substantial increase in system bandwidth, guaranteed transmission rate terminal (User Equipment, UE) of At the same time, it provides higher throughput for the UE. The simultaneous deployment of the small cell and the macro network is one of the important scenarios. In this scenario, the small cell can provide services for the UE together with the macro base station.

In the prior art, the UE needs to send a Preamble (preamble) to the base station when the UE accesses the station. If the preamble can be correctly received by the base station, the base station sends a reply message (for example, an RA-Response random access reply message) to the UE. After receiving the message, the UE sends a message (scheduling the transmission message) to the base station, and after replying from the base station to the terminal, the UE replies with a message (feedback content resolution message).

In the above prior art, the random access procedure requires the base station and the terminal to perform multiple interactions. Therefore, in the existing technology handover process or the access process, the traditional access process of the UE accessing the site has a certain delay. Summary of the invention

The embodiment of the invention provides a method, a device and a system for accessing a site, which are used to speed up the access of the UE to the site and reduce the access delay.

A method for accessing a site according to an embodiment of the present invention includes:

Receiving a first message sent by the second station, where the first message includes first configuration information, where A configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or configuration information for transmitting data;

Transmitting, according to the first configuration information, first access information to the first station to access the first station for communication, where the first access information is the SR or the SRS or an ACK or a NACK or a Data.

Generating a first message for the second site;

Sending a first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or configuration information of sending data. The first configuration information is used by the terminal to send first access information to the first station to access the first station, where the first access information is the SR or the SRS or ACK Or NACK or the data.

And receiving, by the first station, the first message, where the first message includes the first configuration information, where the first configuration information includes configuration information of the scheduling request SR or the sounding reference signal SRS or configuration information of the sending data;

Sending a second message to the terminal, where the second message includes the first configuration information, where the first configuration information is used by the terminal to send first access information to the first station to access the The first station communicates, the first access information being the SR or the SRS or ACK or NACK or the data.

A terminal provided by the embodiment of the present invention includes:

a receiving unit, configured to receive a first message sent by the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of the scheduling request SR or configuration information of the sounding reference signal SRS or sending data Configuration information used;

a sending unit, configured to send first access information to the first station to communicate with the first station according to the first configuration information, where the first access information is the SR or the SRS or ACK or NACK or data.

A site provided by an embodiment of the present invention includes:

a generating unit, configured to generate a first message for the second site; a sending message unit, configured to send a first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS Or transmitting the configuration information of the data, where the first configuration information is used by the terminal to send the first access information to the first station to access the first site, where the first access information is in the embodiment of the present invention. A site provided, including:

The receiving information unit is configured to receive a first message sent by the first station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or a configuration of sending data. Information

a sending information unit, configured to send a second message to the terminal, where the second message includes the first configuration information, where the first configuration information is used by the terminal to send a first access to the first station The information is communicated by accessing the first station, and the first access information is the SR or the SRS or ACK or NACK or the data.

As can be seen from the foregoing technical solutions, the embodiment of the present invention has the following advantages: the UE receives the first message sent by the second station, where the first configuration information is included, and sends the location to the first station according to the first configuration information. The first access information is used to access the first station for communication, so that the UE can access the first station according to the SR or SRS or ACK or NACK or data, without performing random access first. That is, the resource needs to be requested from the target base station, so that the access speed between the UE and the target base station is accelerated, and the signaling interaction process between the UE and the target base station is reduced, thereby reducing the delay of accessing the target base station. DRAWINGS

FIG. 1 is a schematic diagram of a method for accessing a site according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a method for accessing a site according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a method for accessing a site according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a method for accessing a site according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a method for accessing a site according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a method for accessing a site according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a method for accessing a site according to an embodiment of the present invention; FIG. 8 is a schematic diagram of an eighth embodiment of a method for accessing a site according to an embodiment of the present invention; FIG. 9 is a schematic diagram of a ninth embodiment of a method for accessing a site according to an embodiment of the present invention; Schematic diagram of an embodiment of a terminal in an example;

11 is a schematic diagram of an embodiment of a site in an embodiment of the present invention;

12 is a schematic diagram of another embodiment of a station in an embodiment of the present invention;

FIG. 13 is a schematic diagram of a system embodiment of an access site according to an embodiment of the present invention. detailed description

The embodiments of the present invention provide a method, an apparatus, and a system for accessing a site, which are used to speed up a UE accessing a site and reduce an access delay.

The method for accessing a site in the embodiment of the present invention is a scenario in which a terminal (UE) is separated from a control plane and a user plane. In this scenario, the user plane and the control plane can be separately switched to different base stations. E.g:

Scenario 1 , the control plane of the UE remains at the second station, and the user plane transmission of the UE is switched from the third station to the first station.

The second site uses the macro base station eNB as an example, the third site uses Pico2 as an example, and the first site uses Picol as an example.

In this scenario, since the coverage of the small base station is relatively small, the TA change is not considered here. Therefore, the terminal does not need to perform a complete access process.

Scenario 2: The control plane and the user plane of the UE are respectively in the first site and the second site, and the user plane of the terminal is switched to the first site.

The first site uses the macro base station Macro eNB1 as an example, and the second site uses Picol as an example.

In addition, since the target site for user plane conversion is the base station that is serving the terminal, the terminal does not need to perform a complete access procedure.

Scenario 3: The user plane and the control plane of the UE are in the second site, and the user plane of the terminal is switched to the first site.

The second station takes the macro base station Macro eNB1 as an example, and the first station uses Picol as an example.

Scenario 4: The user plane and the control plane of the UE are in the first station and the second station, respectively, and the control plane of the UE is to be switched to the first station. The first site uses Pico as an example, and the second site uses a macro network eNB, that is, a Macro eNB as an example. The first site uses Pico as an example.

The above is merely a description of the technical solutions of the present invention for convenience of description, and does not constitute a limitation of the technical solutions described in the present invention.

Referring to FIG. 1, an embodiment of a method for accessing a site in an embodiment of the present invention includes:

The first message sent by the second station, where the first message includes the first configuration information, the UE receives the first message sent by the second station, where the first message includes the first configuration information, the first configuration The information includes configuration information of a scheduling request (English: Scheduling Request, abbreviated: SR), or configuration information of a sounding reference signal (English: Sounding Reference Signal, abbreviation: SRS), or configuration information for transmitting data.

The configuration information for transmitting data in this embodiment refers to configuration information of data to be transmitted when the UE is to communicate with the second station.

The first station is the target base station to which the UE accesses, and the second station is the base station to which the UE is currently connected.

102. Send, according to the first configuration information, the first access information to the first station to access the first station for communication. The data is various communication data sent by the terminal to the first station, and is accessed by accessing the first station.

In this embodiment, the UE sends the first access information to the first station to access the first station for communication, that is, the UE may send the SR or SRS or ACK or NACK or data to the first station. Communicating by accessing the first site. For the acknowledgement and non-acknowledgement, specifically, in the prior art HARQ (Hybrid Automatic Repeat Request) or ARQ (Automatic Repeat Request) mechanism, The party sends a data packet, and if the receiver receives it correctly, it feeds back the ACK, and if it is not received correctly, it feeds back the NACK. When the sender receives the NACK, it will retransmit the packet. In the present invention, the ACK or the NACK is not a feedback for the HARQ or ARQ transmission, but an indication signal or may be considered as a special SR, or may be considered as the first SR of the terminal and the associated first station. Here, ACK/ACK is used as an indication signal to indicate that the terminal directly accesses the first station or is used to indicate that the terminal does not need to perform a regular random access procedure but sends ACK/NACK can directly access the first site and start communicating with the first site. In the embodiment of the present invention, the UE receives the first message sent by the second station, where the first configuration information is sent, and the first access information is sent to the first station to access the data according to the first configuration information. To access the first station for communication, without first performing random access, the resource needs to be requested from the target base station first, thereby speeding up the access speed between the UE and the target base station, and reducing the letter between the UE and the target base station. The interaction process is performed, thereby reducing the delay of accessing the target base station.

Referring to FIG. 2, an embodiment of a method for accessing a site in an embodiment of the present invention includes: 201. Receive a first message sent by a second station, where the first message includes first configuration information, and the UE receives a second site. And sending the first message, where the first message includes the first configuration information, where the first configuration information includes configuration information of the SR, or configuration information of the SRS, or configuration information for sending data. The configuration information for transmitting data in this embodiment refers to configuration information of data to be transmitted when the UE is to communicate with the second station.

In this embodiment, the sending, by the first station, the first access information to access the first station for communication, specifically: the UE does not initiate random access to the first station, but directly to the first The first station sends the first access information to the first station, that is, the UE directly sends the first access information to the first station to access the first station, that is, the UE The first station sends the first access information instead of performing random access to access the first station.

Specifically, if the first access information is a NACK, if the first station receives the NACK on the sending SR resource, and before receiving the NACK, the station does not allocate the feedback ACK/NACK to the terminal. Resource, or the site and the terminal do not have a hybrid automatic repeat request (English: Hybrid Automatic Repeat Request abbreviation: HARQ) or automatic repeat request (English: Automatic Repeat-reQuest, abbreviation: ARQ) transmission, or the site does not have the terminal If there is communication, then when it considers that the NACK is an indication signal or a special SR, it is used to indicate that the terminal directly accesses the first station, indicating that the terminal does not need to perform a regular random access procedure but passes Sending the NACK can directly access the first site and start communicating with the first site.

The UE specifically sends a signal on the resource that sends the SR, for example, sends an SR or an ACK or a NACK, which is not specifically limited in the embodiment of the present invention. It is to be understood that the embodiments of the present invention are merely specific examples, but the content of the technical solutions of the present invention is not limited to the specific examples. Taking the first access information as an SR as an example: the UE sends an SR to the first station, where the SR is represented by a modulated symbol d ( 0 ) =1 (this modulation mode is also called PUCCH formatl). The UE transmits the SR by using a single amplitude shift keying (Amplitude Shift Keying, ASK) modulation method. The UE transmits an SR, which is represented as a modulation symbol d(0). = 1. Of course, if the UE does not want to send the SR (for example, the UE does not want to request bandwidth, does not want to be scheduled by the base station, or does not want to directly access the first station in the content of the present invention), then the UE is transmitting the SR resource, The SR uses simple On-Off keying (the simplest form of amplitude-shift keying (ASK) modulation ) , with the UE transmitting a SR with modulation symbol d(0) = 1 to request a PUSCH resource ( Positive SR transmission), and transmitting nothing when it does not request to be scheduled (negative SR). Then the first station receives a signal on the resource that receives the SR sent by the UE, or receives the signal d ( 0 ) =1, then when it thinks that it is an indication signal or a special SR, it is used to indicate that the terminal directly accesses the first station, which is used to indicate that the terminal does not need to perform a regular random access procedure but By sending this signal, it is possible to directly access the first site to start communicating with the first site.

Taking the first access information NACK as an example: The UE sends an ACK or a NACK by means of Binary Phase Shift Keying (abbreviation: BPSK). This modulation mode can be called PUCCH. Formatla ), the modulated symbol is ACK=d ( 0 ) =1 , NACK=d ( 0 ) =-1. d ( 0 ) is a complex-value symbol.

If the first station receives NACK=d(0)=-1 on the transmitting SR resource, that is, knowing that the NACK is received, and before receiving the NACK, the station does not allocate feedback ACK/NACK to the terminal. Resource, or the station and terminal do not have HARQ or ARQ transmission, or the station does not have communication with the terminal, then when it considers that the NACK is an indication signal or a special SR, it is used to indicate that the terminal directly accesses The first station is configured to indicate that the terminal does not need to perform a regular random access procedure, but can directly access the first station by sending the NACK, and starts to communicate with the first station. Similarly, ACK can also be implemented in this way.

Of course, in transmitting the SR resources, the UE adopts Quadrature Phase Shift Keying (QPSK) modulation (this modulation mode may be referred to as PUCCH format lb), where the modulation symbol d ( 0 ) is equal to 1, -j, j or -1. Choose one of them The value is transmitted as the first access information on the resource that sends the SR, and the first access information is considered to be a special SR, and is also referred to as an SR that the terminal communicates with the first station. It is used to indicate that the terminal directly accesses the first site, and is used to indicate that the terminal does not need to perform a regular random access procedure, but can directly access the first site by sending the NACK, and starts to communicate with the first site.

In short, the terminal sends a signal on the resource that sends the SR, which may be an SR, or an ACK or a NACK, or other signal or symbol. We also call it SR, which is a special SR. , is the first SR that the terminal communicates with the first site. It is used to indicate that the terminal directly accesses the first station, and is used to indicate that the terminal does not need to perform a regular random access procedure, but can directly access the first station by transmitting the NACK, and starts to communicate with the first station.

The first message may further include second configuration information, where the second configuration information is a value of a timing advance (English: timing advance, abbreviation ΤΑ) between the UE and the first station, where TA=0 in this embodiment.

The first message may further include first indication information.

The second configuration information or the first indication information is used to indicate that the terminal does not initiate random access to the first station, or is used to indicate that the terminal does not initiate random access to the first station, and directly send the The first access information is used to access the first station; or is used to instruct the terminal to directly send the first access information to access the first station; or, to indicate to send the first access The information accesses the first site instead of performing random access.

The first configuration information, the second configuration information, and the first indication information in the embodiment are all sent by the first site to the second site.

Sending the first access information to the first site to access the first site for communication, specifically:

The UE sends an ACK/NACK to the first station on the resource block that sends the SR according to the configuration information of the SR, to access the first station for communication;

Or,

And transmitting, by the UE, an ACK/NACK to the first station on the resource block that sends the SR according to the configuration information of the SR, so that the first station acquires the SR according to the ACK/NACK.

The UE sends an ACK/NACK to the first station on the resource block that sends the SR. The UE communicates with the first site for the first time.

In this embodiment, after receiving the first message, the UE may directly communicate with the first site according to the first message.

Specifically, the UE acquires configuration information that includes the sending data in the first message, where configuration information of the sending data is scheduling resource information allocated by the first station, and receives or sends data to the allocated scheduling resource. The first station, the UE directly communicates with the first station according to the first message.

The first message further includes indication information.

The indication information may be used to indicate: user plane switching of the UE, or data radio bearer (abbreviation: DRB) handover, or user plane bearer handover, or user plane from the second site Switching to the first site, or switching the transmission of user plane data from the second site to the first site, or switching the transmission of user data from the third site to the first site, or Establishing a user plane on the first site, or establishing a bearer/DRB/user plane bearer on the first site, or adding a cell for user data transmission, where the cell is the A site of a site.

The indication information may also be used to indicate: control plane switching of the UE; or, signaling radio bearer (abbreviation: SRB) switching; or, the control plane is switched from the second station to the first a station; or, the transmission of control plane data is handed over from the second station to the first station; or the transmission of control signaling is handed over from the second station to the first station; or, control signaling The transmission and transmission of part of the user data are switched from the second station to the first station.

In the process of instructing the user plane and/or the switching plane of the UE to perform the handover, the indication information of the one bit may be used to identify whether the user plane or the control plane needs to be switched. For example, if the value of the indication information is 1, it indicates that the UE is If the value of the indication information is 0, the control plane of the UE is switched. It can be understood that other bit values may be correspondingly marked with the switching between the user plane and the control plane.

Further, the first message further includes at least one of the following:

The indication information of the first station, the cell identifier information of the first station, the carrier information of the first station, and the carrier information of the cell of the first station, and the scheduling resource information allocated by the first station. The scheduling resource information in the cell 1 of the first station is obtained by the message, so that data can be received or sent to the first station on the scheduling resource. Thereby, the terminal starts to listen to the data transmission of the cell under the first station to itself, receives the data sent by the first station or starts to send data to the first station.

Specifically, the information of the handover may also be identified by using one bit of indication information:

For example, if the user plane of the UE is switched, the first station sends the first message to the target user plane station, where the first message includes: 1 bit indication information (the value of the indication information is 1), and the UE control after the handover. Site marking/cell marking of the station;

The control plane switching of the UE and the switching of the user plane to the different sites/cells, the first station sends the first message to the target user plane site, where the first message specifically includes: 1 bit indication information (the value of the indication information is 1) And the site identifier/cell identifier of the control plane station of the UE after handover, and may also include the identifier of the source user plane station.

The control plane of the UE is switched, and the first station sends the first message to the target control plane site, where the first message specifically includes: 1 bit indication information (the value of the indication information is 0), and the user plane station of the UE after the handover Site marking/cell marking;

The control plane switching of the UE and the switching of the user plane to the different sites/cells, the first station sends the first message to the target control plane site, where the first message specifically includes: 1 bit indication information (the value of the indication information is 0) The site identifier/cell identifier of the user plane station of the UE after handover may also include the identifier of the source control plane site.

The first message further includes: maintaining configuration information or configuration indication information of the base station with the user plane when the control plane is switched, or maintaining configuration information or indication information of the base station with the control plane when the user plane switches.

The configuration information of the SR includes at least one of the following:

The time-frequency resource information of the SR, the SR configuration index (also referred to as SR-Configindex), and the physical uplink control channel of the SR (English: Physical Uplink Control CHannel, abbreviation: PUCCH) The resource block index (SR PUCCH resource index, which may also be referred to as sr-PUCCH-Resourcelndex).

The terminal can calculate the subframes in which the terminal sends the SR through the configuration index of the SR, and the terminal passes the physical uplink control channel resource block index of the SR (SR PUCCH resource index). The resource block information for transmitting the SR on one subframe is obtained. Then, the terminal can obtain which resource block of which subframes to send the SR through the configuration index of the SR and the physical uplink control channel resource block index (SR PUCCH resource index) of the SR.

Specifically, the terminal may obtain an SR transmission periodicity (SR) and an SR subframe offset (SR subframe offset W _SET , _sr ) through the following table by using an SR configuration index (SR configure index) in the message. Two parameters, the SR transmission time can be calculated as SR transmission instances are the uplink subframes satisfying: ( ^10x = 0 = where _nf is the system frame number, ns is The number of a symbol in a wireless station (slot number within radio frame

Thus, the subframe information of the transmitting SR can be obtained by the SR configuration index (SR configure index) described above. Of course, there are other ways to obtain the subframe information for transmitting the SR. This is not limited here.

Table 1 UE-specific SR periodicity and subframe offset configuration table (UE-specific SR periodicity and subframe offset configuration)

In this embodiment, the configuration information of the SRS includes:

The configuration information of the SRS may be specifically the content in the SRS uplink configuration information unit (Sounding RS-UL-Config Information Element), or may be the Time-frequency resource information of SRS. Alternatively, the SRS uplink configuration information element (Sounding-frequency information information) or the SRS time-frequency resource information may include at least one of the following, that is, the SRS configuration information may be at least one of the following: SRS bandwidth (srs-Bandwidth) ), SRS bandwidth configuration (srs-BandwidthConfig), frequency hopping bandwidth (srs-HoppingBandwidth SRS), frequency domain location (freqDomainPosition), SRS configuration index (srs-Configlndex), period change (cyclicShift), subframe configuration (srs-SubframeConfig) SRS), duration (duration), duration for periodic sounding reference signal transmission (SRS-AntennaPort) is used to indicate the number of antenna ports for transmitting SRS (Indices the number of antenna ports used) For sounding reference signal transmission ). Of course, the foregoing only exemplifies the content of the SRS uplink configuration information unit (Sounding RS-UL-Config Information Element), and the content of the SRS uplink configuration information unit (Sounding RS-UL-Config Information Element) is not limited to the inner valley described above.

The present invention exemplifies the configuration information of the SRS by using the time-frequency resource information of the SRS or the SoundingRS-UL-Config Information Element. However, the SRS time-frequency resource information/SRS uplink configuration information unit (SRS-UL-Config Information Element) may include at least one of the following: SRS bandwidth (srs-Bandwidth), SRS bandwidth configuration (srs-BandwidthConfig), and hopping. Frequency bandwidth (srs-HoppingBandwidth SRS), frequency domain location (freqDomainPosition), SRS configuration index (srs-Configlndex), period change (cyclicShift), subframe configuration (srs-SubframeConfig SRS), duration (duration), SRS antenna port (SRS-AntennaPort) and so on. Therefore, the present invention does not - repeat the description.

The configuration information may be configured by the UE when adding a secondary cell, and specifically includes at least one of the following:

The media intervenes to control the MAC layer configuration information, the packet data convergence protocol PDCP layer configuration information, the radio link control protocol RLC layer configuration information, the physical layer PHY configuration information, the data radio bearer DRB (s) configuration information, the logical channel Configuration information, packet data aggregation protocol serial number PDCP SN.

It should be noted that, before step 201, that is, before the UE receives the first message sent by the second station, Sending, by the second station, a request message to the first station, to request the UE to access the first station, where the first station sends a message confirming access to the second station, where the confirmation is performed. The access message includes configuration information of the first access information, and the second station sends the first message to the UE according to the acknowledged access message sent by the first station, where the UE And receiving the first message, where the first message includes configuration information of the first access information sent by the first station.

202. The UE communicates with the first site.

The UE communicates with the first station, and may be that the UE activates communication with the first station, or the UE directly communicates with the first station.

The specific communication method may be one of the following methods;

(1) the UE directly communicates with the first station according to the first message sent by the second station, or sends the first access information to the first station, where the first access information is used by the first access information. Communicating with the first site upon request or activation.

In all aspects of the present invention, the first access information is used to request or activate communication with the first site, and the first access information is used for accessing communication with the first site.

Since the UE can obtain downlink synchronization with the first station in the measurement phase, and consider that when the first site is a small cell, the coverage of the first site is relatively small, and the first station can be uplink-synchronized with the UE without considering the TA change. . Therefore, the UE can directly start communicating with the first station, or the UE sends information to the first station, starts communicating with the first station, or activates the UE terminal and the first station to start communication.

Specifically, after receiving the first message sent by the second station, the UE completes the configuration according to the content included in the first message, and starts to communicate with the first station.

(2) the UE receives the activation message sent by the first station, and directly communicates with the first station or sends the first access information to the first station according to the received activation message, where the first The access information is used to request or activate communication with the first site.

Specifically, the activation message may be that the first station sends a MAC layer message, such as a MAC CE, to indicate that the terminal communicates with the first station, and the UE starts to communicate with the first station. The activation message may be in the form of an RRC message, a signaling layer of the physical layer, or the like, which is not limited herein.

(3) The UE receives the activation message sent by the first station forwarded by the second station, and directly communicates with the first station or sends a first connection to the first station according to the received activation message. Incoming information, the first access information is used to request or activate communication with the first site. Specifically, the activation message may be that the first station sends a MAC layer message, such as a MAC CE, to indicate that the terminal communicates with the first station, and the UE starts to communicate with the first station.

(4) The UE receives the activation message sent by the second station, and directly communicates with the first station or sends the first access information to the first station according to the received activation message, where the first access Information for requesting or activating communication with the first site;

(5) The UE sends an RRC connection reconfiguration complete message/handover completion message to the first station according to the bandwidth information or the time-frequency resource information included in the received first message, to the access station. Said the first site. That is, the first message may include time-frequency resource information of the RRC connection reconfiguration complete message/handover completion message sent by the first station, and the UE sends the RRC connection reconfiguration complete message on the time-frequency resource/ Switch the completion message to access the first site.

It should be noted that before the step 202, that is, before the UE activates the communication with the first station, the acknowledgment message may be sent to the second station, where the acknowledgment message may be used to notify the second station that the UE has been The first message completes the configuration or activates the terminal to communicate with the first site.

203. Send, according to the first configuration information, the first access information to the first station to access the first station for communication, where the data is used by the terminal to send to the first station. Communication data to access the first site for communication. The SRS is a UE-configured SRS.

If the first access information is an SR, the specific access procedure is: the UE obtains the subframe information of the SR according to the SR configuration index (English: SR-Configlndex) of the configuration information of the first access information, and obtains the subframe information of the SR. The configuration index can calculate in which subframes the UE sends the SR.

The configuration information of the first access information may further include a physical uplink control channel resource block index (SR PUCCH resource index) of the SR, and a physical uplink control channel resource block index (SR PUCCH resource index) of the SR is used for Providing PUCCH resource block information for the terminal to send the SR

The UE can transmit the SR on the resource block of which PUCCH.

Based on the SR configuration index of the SR and the physical uplink control channel resource block index (SR PUCCH resource index) of the SR, the terminal can obtain which of the PUCCH resource blocks on the subframes to send the SR. Further, the manner of sending the SR may also be optimized to send an ACK/NACK: sending an ACK/NACK (English: Acknowledgement/ Negative-Acknowledgment) message on the PUCCH resource block that sends the SR, so that the first station obtains The SR, the SR is used to activate communication with a first station, and the SR is a first SR sent to the first station.

The UE transmits an ACK/NACK on the resource block that transmits the SR, so that the base station receives the ACK/NACK on the resource block that transmits the SR, and then the base station knows that the terminal is to activate communication with the base station. Since the terminal has not previously communicated with the base station, there will be no HARQ/ARQ related communication, so the terminal should not feed back ACK/NACK to the base station according to the prior art, and the SR should be transmitted according to the prior art. Therefore, the base station receives the ACK/NACK on the resource block that transmits the SR, and considers this mode to be a special mode. The terminal communicates with the base station for the first time, requesting the access station to communicate with the base station.

The UE sends an ACK/NACK on the PUCCH resource block of the SR. For example, we can default that the UE sends an ACK, and the first station considers that the SR is obtained for activating communication with the terminal. The SR is the first SR received by the terminal. Or the first station considers the received ACK as being used to activate communication with the terminal. Of course, we can also default that the UE sends a NACK on the PUCCH resource block that sends the SR to represent the communication used to activate the terminal with the first station. In summary, because the terminal has not communicated with the base station before, there is no HARQ/ARQ related communication at all. Therefore, according to the prior art, the terminal does not feed back ACK/NACK to the base station, and thus the base station transmits the PUCCH resource block of the SR. Upon receiving the ACK/NACK, it is known that the terminal wishes to access the base station for communication.

The configuration information of the first access information may further include the maximum number of sending SRs sent by the terminal:

SRdsr-TransMax.

If the first access information is an SRS, the first station receives the SRS sent by the UE, and considers that the UE reconfiguration succeeds. At the same time, by receiving the SRS, the first station and the terminal are uplink-synchronized to obtain information such as an uplink channel estimation. The first station starts transmitting data with the UE.

204. If the first access information sent to the first station is an SR, receive information about a bandwidth allocated by the first station according to the SR, and send an RRC connection reconfiguration according to the allocated bandwidth. An RRC connection reconfiguration message/handover command message is sent to the first station.

In the embodiment of the present invention, the UE receives the first message sent by the second station, where the first configuration is included Transmitting, according to the first configuration information, the first access information to the first station to access data to access the first station for communication, without performing random access first, that is, first The target base station requests the resource. Therefore, the access speed between the UE and the target base station is accelerated, and the signaling interaction process between the UE and the target base station is reduced, thereby reducing the delay of accessing the target base station.

The communication process between the UE and the first station and the second station is described in a specific application scenario. Please refer to Figure 3.

301. The second station sends a UE access request to the first station.

The access request is used to request the first station to allow UE access.

302. The first station replies to the UE access request of the second station.

The first station confirms that the UE is allowed to access the first site.

303. The first station sends a first message to the UE.

The first configuration information is included in the first message.

304. The UE sends an acknowledgement message to the second site.

The confirmation message may be used to notify the second station that the UE has completed configuration according to the first message.

305. The UE communicates with the first site.

The specific communication manner may be: the UE directly communicates with the first station or sends the first access information to the first station according to the first message sent by the second station, where the first access Information is used to request or activate communication with the first site.

The UE may receive the activation message sent by the first station, and directly communicate with the first station or send the first access information to the first station according to the received activation message, where the An access message is used to request or activate communication with the first site.

The UE may receive the activation message sent by the first station that is forwarded by the second station, and directly communicate with the first station or send the first access to the first station according to the received activation message. Information, the first access information is used to request or activate communication with the first site.

The UE may receive the activation message sent by the second station, and directly communicate with the first station or send the first access information to the first station according to the received activation message, where the first connection The incoming information is used to request or activate communication with the first site.

The UE may also use the bandwidth information included in the first message sent by the second station according to the received second station. And the time-frequency resource information, sending an RRC connection reconfiguration complete message/handover completion message to the first station to access the first station.

306. The UE receives information about a bandwidth allocated by the first station according to the SR.

And if the first access information sent to the first station is an SR, the UE receives information about a bandwidth allocated by the first station according to the SR.

307. Send an RRC Connection Reconfiguration Complete message/Handover Complete message.

The UE transmits an RRC Connection Reconfiguration Complete message/Handover Complete message to the first station according to the allocated bandwidth.

The above is a method for describing an access site in the embodiment of the present invention from the perspective of the UE side. The method for accessing the site in the embodiment of the present invention is described below from the perspective of the first site. Referring to FIG. 4 .

401. The first site generates a first message for the second site.

402. Send the first message to the second site, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or sent Data configuration information, the first configuration information is used by the terminal to send first access information to the first station to access the first site, where the first access information is the SR or the SRS or ACK or NACK or data.

In the embodiment of the present invention, a first message is generated for the second station, and the first message is sent to the second station, where the first message includes first configuration information, where the first configuration information includes a scheduling request SR The configuration information or the configuration information of the sounding reference signal SRS or the configuration information of the sending data, the first configuration information is used by the terminal to send the first access information to the first station to access the first station, There is no need to perform random access first, that is, the resource needs to be requested from the target base station first. Therefore, the access speed between the UE and the target base station is accelerated, and the signaling interaction process between the UE and the target base station is reduced, thereby reducing the access target base station. Delay.

Referring to FIG. 5, another embodiment of a method for accessing a site in an embodiment of the present invention includes: 501: Receive a second message sent by a second station, where the second message is used to switch a terminal or Adding at least one cell to the terminal;

The cell added for the terminal may be a cell used for data transmission with the UE. Switching the terminal includes: switching the user plane of the terminal, or switching the control plane, or switching the control plane and the user plane to different sites respectively; The user plane switching includes:

The user plane switching of the terminal, the DRB switching of the terminal, or the user plane bearer switching of the terminal, or the user plane of the terminal is switched from the second site to the first site local, or Transmitting the user plane data of the terminal from the second station to the first station local, or transferring the user data of the terminal from the third station to the first station, or Establishing a user plane of the terminal at the first site, or establishing a bearer/DRB/user plane bearer of the terminal at the first site, or adding a data transmission for the terminal user for the terminal a cell, where the cell is a cell of the first site.

The control plane switching includes:

The control plane of the terminal is switched, or the SRB of the terminal is switched, or the control plane of the terminal is switched from the second station to the first station, or the control plane data of the terminal is transmitted. Switching from the second station to the first station, or the transmission of control signaling of the terminal is switched from the second station to the first station, or the transmission of control signaling of the terminal And transmission of part of the user data is switched from the second site to the first site.

The configuration information of the first access information includes at least one of the following:

The time-frequency resource information of the SR, the configuration index of the SR, the physical uplink control channel resource block index of the SR, the time-frequency resource information of the SRS, or the SRS uplink configuration information element (SoundingRS- UL-Config Information Element ).

502. Send a first message to the second site, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or data The first configuration information is used by the terminal to send the first access information to the first station to access the first site, where the first access information is the SR or the SRS Or ACK or NACK or data;

Generating a first message for the second site and transmitting the first message to the second site.

In this embodiment, the first configuration information is used by the UE not to initiate random access to the first station, but directly sending the first access information to the first station to access the The first station; or the UE directly sends the first access information to the first station to access the first station; or the UE sends the first connection to the first station Incoming information replaces the UE to perform random access to access the first station, thereby saving the access delay of the UE. The first message may further include second configuration information, where the second configuration information is a value of a timing advance (English: timing advance, abbreviated ΤΑ) of the UE and the first station, where TA=0 in this embodiment.

The first message may further include first indication information.

The first message further includes: the time-frequency resource information that is sent by the terminal to the RRC connection reconfiguration complete message/handover completion message, and the RRC connection reconfiguration sent by the terminal is received on the time-frequency resource. A message/handover completion message is completed to begin communicating with the terminal.

After transmitting the second message to the second station, the first station establishes a data transmission channel with the second station, and may also perform data transmission after establishing the data transmission channel.

503. Receive a third message sent by the second station, where the third message is used to notify the terminal to complete configuration and/or to notify that communication starts with the terminal.

504. After receiving the third message sent by the first station, activate communication with the UE.

The specific activation method can be one of the following ways:

(1) receiving data sent by the terminal, and starting to communicate with the terminal; or receiving the terminal to send first access information, where the first access information is used to request or activate communication with the terminal.

(2) sending an activation message to the second station, so that the second station sends a second activation message to the terminal for requesting or activating communication with the terminal;

Receiving data of the terminal, starting to communicate with the terminal, or receiving the terminal to send first access information, where the first access information is used to request or activate communication with the terminal.

(3) receiving an activation message sent by the second station, where the activation message is used to request or activate communication with the terminal.

(4) receiving data of the terminal, starting to communicate with the terminal, or receiving the terminal Sending first access information, where the first access information is used to request or activate communication with the terminal. (5) Sending an activation message to the terminal to request or activate communication with the terminal.

If the first station receives the first access information sent by the terminal, if the first access information is an SR, the receiving information in the configuration information of the first access information is allocated to the terminal. The terminal sends an RRC reconfiguration complete message/handover completion message.

Before receiving the ACK/NACK sent by the terminal on the resource block of the SR, the terminal is not allocated resources for feeding back ACK/NACK; or the receiving the resource of the terminal in the SR Before the ACK/NACK sent on the block, the ARQ/HARQ communication is not performed with the terminal; or the ACK/NACK is sent to the first station on the resource block that sends the SR, and the first The site communicates for the first time.

Receiving an ACK/NACK on the PUCCH resource block that sends the SR (for example, we can default that the UE sends an ACK), and the first station considers that the SR is obtained for activating communication with the terminal, The SR is the first SR sent by the terminal. Or the first station considers this to be an ACK/NACK received for activating communication with the terminal. Of course, we can also communicate with the first site by default. In summary, because the terminal has not communicated with the base station before, there is no HARQ/ARQ related communication at all. Therefore, according to the prior art, the terminal does not feed back ACK/NACK to the base station, and thus the base station transmits the PUCCH resource block of the SR. Upon receiving the ACK/NACK, it is known that the terminal wishes to access the base station for communication.

It is to be noted that, after receiving the notification message that the UE sent by the second station completes the configuration, or after the communication with the UE is activated, the first station sends a first indication message to the third station, where the first indication message is sent. And used to instruct the third station to stop communication with the UE.

Further, the first station sends a second indication message to the third station, where the second indication message is used to indicate that the third station releases the resource reserved for the terminal, or the terminal configuration information, or the Terminal context information.

Further, the first station sends a third indication message to the third station, where the third indication message is used to indicate that the third station continues to communicate with the terminal.

For the content of the embodiment of the present invention, which is the same as the embodiment shown in FIG. 1 and FIG. 2, refer to the description in the related embodiments, and details are not described herein again. In the embodiment of the present invention, the first station receives the second message sent by the second station, where the second message is used to switch the terminal or add at least one cell for data transmission to the terminal, and the first station sends the first message. a message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or configuration information of sending data. The first configuration information is used by the terminal to send the first access information to the first station to access the first station, and does not need to perform random access first, that is, the resource needs to be requested from the target base station first, so The access speed between the UE and the target base station is reduced, and the signaling interaction process between the UE and the target base station is reduced, thereby reducing the delay of accessing the target base station.

The communication process between the first station and the second station and the UE is described in a specific application scenario. See Figure 6.

601. The first station receives a second message sent by the second station.

The second message is used to request to switch the user plane of the UE, or control plane switching, or switch the control plane and the user plane to different sites respectively, or add at least one cell for data transmission to the terminal.

602. The first station sends a first message to the second site.

The first message is used to reply to the second message, where the first message includes first configuration information, where the first configuration information includes configuration information of the scheduling request SR or configuration information of the sounding reference signal SRS or configuration of the sending data. The first configuration information is used by the terminal to send first access information to the first station to access the first station, where the first access information is the SR or the SRS or ACK or NACK or data.

603. The first station establishes a data transmission channel with the second station.

It is also possible to perform data transfer after the data transmission channel is established.

604. The first station receives a third message sent by the second station.

The third message is used to notify the terminal to complete the configuration and/or to notify the start of communication with the terminal.

605. The first station activates communication with the UE.

The specific activation mode may be: receiving data sent by the UE, starting to communicate with the terminal, or receiving the UE to send the first access information, where the first access information is used to request or activate communication with the UE; Sending a message to the second site, such that the second site sends a second Activating a message to the terminal for requesting or activating communication with the terminal; receiving data of the terminal, starting to communicate with the terminal, or receiving the terminal to send first access information, the first access information Used to request or activate communication with the terminal.

Or receiving an activation message sent by the second station, where the activation message is used to request or activate communication with the terminal;

The device may receive the data of the terminal, start to communicate with the terminal, or receive the first access information, where the first access information is used to request or activate communication with the terminal, or Sending an activation message to the terminal to request or activate communication with the terminal.

606. The first station sends a first indication message to the third station.

The first indication message is used to indicate that the third station stops communication with the UE.

607. The first station sends a second indication message to the third station.

And the second indication message is used to indicate that the third station releases the resource reserved for the terminal, or the terminal configuration information, or the terminal context information.

608. The first station sends a third indication message to the third station.

The third indication message is used to indicate that the third station continues to communicate with the terminal.

All the embodiments of the present invention do not limit the types of all the sites, such as the first site base station and the second site. For example, the first site and the second site may specifically be base stations, and may be one of the following: Macro eNB (macro base station) ), Micro eNB (Pico base station), Pico eNB (micro base station), HeNB (Home Base Station), Small Cell eNB (small cell base station), and relay station (relay station) or may also be a node having a scheduling function. The first site or the second site may in turn be called a wireless communication node or a wireless communication site.

The method for describing an access site in the embodiment of the present invention is described above on the first site side. The method for accessing the site in the embodiment of the present invention is described below from the perspective of the second site. Referring to FIG.

701. The first message sent by the first station is received, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration information of sending data.

The second station receives the first message sent by the first station, where the first message includes first configuration information, where the first configuration information includes configuration information of the scheduling request SR or the sounding reference signal SRS or configuration information of the sending data. Wherein, the configuration information of the sending data refers to that the UE is to be associated with the second station. The configuration information of the data sent when the communication is performed.

702. Send a second message to the terminal, where the second message includes the first configuration information, where the first configuration information is used by the terminal to send first access information to the first station to access The first station performs communication, and the first access information is the SR or the SRS or ACK or NACK or data.

The second station sends a second message to the terminal, where the second message includes the first configuration information, where the first configuration information is used by the terminal to send the first access information to the first station. Communicating into the first station, the first access information is the SR or the SRS or ACK or NACK or data.

In the embodiment of the present invention, the second station sends a second message to the terminal, where the second message includes the first configuration information, where the first configuration information is used by the terminal to send the first station to the first station. An access information is used to access the first station for communication, where the first access information is the SR or the SRS or ACK or NACK or data, so that the UE can access the according to the first configuration information. The first station performs communication, and does not need to perform random access first, that is, the resource needs to be requested from the target base station first, thereby speeding up the access speed between the UE and the target base station, and reducing the signaling interaction process between the UE and the target base station, thereby Reduce the delay of accessing the target base station.

Referring to FIG. 8, another embodiment of a method for accessing a site in an embodiment of the present invention includes: 801. A second site sends a third message to a first site, where the third message is used to request a user plane of the terminal. Switching, or control plane switching, or switching between the control plane and the user plane to different sites; wherein, the user plane switching includes:

The user plane switching of the terminal, or the DRB switching of the terminal, or the user plane bearer switching of the terminal, or the user plane of the terminal is switched from the second site to the second site to the a first site, or the transmission of the user plane data of the terminal is locally switched from the second site to the first site, or the transmission of user data of the terminal is switched from the third site to the The first site, or the user plane of the terminal is established on the first site, or the bearer/DRB/user plane bearer of the terminal is established on the first site, or is added to the terminal a cell used for the data transmission of the terminal user, where the cell is a cell of the first site.

The control plane switching includes: The control plane of the terminal is switched, or the SRB of the terminal is switched, or the control plane of the terminal is switched from the second station to the first station, or the control plane data of the terminal is transmitted. Switching from the second station to the first station, or the transmission of control signaling of the terminal is switched from the second station to the first station, or the transmission of control signaling of the terminal And transmission of part of the user data is switched from the second site to the first site.

The time-frequency resource information of the SR, the configuration index of the SR (SR CONFIGURE INDEX), the physical uplink control channel resource block index (SR PUCCH resource index) of the SR, the time-frequency resource information of the SRS, The SRS uplink configuration information element.

Further, the configuration information of the first access information may further include at least one of the following: configuration information of a medium access control MAC layer, configuration information of a packet data convergence protocol PDCP layer, and configuration of a radio link control protocol RLC layer Information, configuration information of the physical layer PHY, configuration information of the data radio bearer DRB (s), configuration information of the logical channel, packet data convergence protocol sequence number PDCP SN.

802. The first message sent by the first station is received, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration information of sending data.

The second station receives the first message sent by the first station, where the first message includes first configuration information, where the first configuration information includes configuration information of the scheduling request SR or the sounding reference signal SRS or configuration information of the sending data. The configuration information of the transmission data refers to configuration information of data that is sent when the UE is to communicate with the second site.

The first configuration information is used by the terminal to send first access information to the first station to access the first station for communication, so that the terminal does not initiate random access to the first station, Transmitting the first access information directly to the first site to access the first site; or

Transmitting the first access information to the first station to access the first station; or sending the first access information to the first station instead of performing random access, to access the Said the first site.

The first message may further include second configuration information, where the second configuration information is a value of a timing advance (English: timing advance, abbreviated ΤΑ) of the UE and the first station. TA=0.

The first message may further include first indication information.

Further, the first message further includes at least one of the following:

The base station identifier of the source user plane base station of the terminal, the cell identifier of the source user plane base station of the terminal, the identifier of the source control plane base station of the terminal, the cell identifier of the source control plane base station of the terminal, the terminal The indication of the target base station that performs handover and the target cell indication that the terminal performs handover.

Further, the first message may further include:

The terminal maintains the indication information of the configuration with the user plane base station when the control plane is switched, or the indication information of the configuration of the control plane base station is maintained when the terminal switches at the user plane.

It is to be noted that after receiving the first message sent by the first station, the first station agrees that the UE accesses, and sends a first indication message to the third station, where the first indication message is used. Instructing the third station to stop communication with the terminal, the user plane and/or control plane of the UE is at the third station.

After receiving the first message sent by the first station, the second station may also establish a data transmission channel with the first station, or establish a data transmission channel with the first station, and send data of the terminal to the first Site.

803. Send a second message to the terminal, where the second message includes configuration information of the first access information, where configuration information of the first access information is used by the terminal to send to the first station. First accessing information to access the first site;

804. Receive a fourth message of the terminal, where the fourth message is used to notify the terminal to complete the configuration.

The second station receives a fourth message of the terminal, where the fourth message is used to notify the terminal to complete Configuration.

805. Send a fifth message to the first site, where the fifth message is used to notify the terminal at the first site to complete the configuration, and/or notify the first station to communicate with the terminal.

806. Activate communication between the UE and the first site.

In this embodiment, the second station may activate communication between the UE and the first station, and the specific activation manner may be one of the following manners:

(1) receiving an activation message sent by the first station, where the activation message sent by the first station is used to indicate that the terminal directly communicates with the first station or that the terminal sends the first message to the first station. Accessing information, the first access information is used to request or activate communication with the first site;

(2) sending an activation message to the terminal, configured to indicate that the terminal directly communicates with the first station, or instructs the terminal to send first access information to the first station, where the first access information is used by Communicating with the first site upon request or activation;

(3) transmitting an activation message to the terminal and the first station, informing the terminal to communicate with the first station;

And (4) transmitting, to the terminal, time-frequency resource information of the RRC connection reconfiguration complete message/handover completion message sent by the terminal included in the first message to the first station.

In the embodiment of the present invention, after the communication between the UE and the first station is activated, a second indication message is sent to the third station, where the second indication message is used to indicate that the third station is released as a A reserved resource of the terminal, or configuration information of the terminal, or context information of the terminal.

Further, the third indication message is sent to the third station, where the third indication message is used to indicate that the third station continues to communicate with the terminal.

For the content of the embodiment shown in FIG. 1, FIG. 2, FIG. 4, and FIG. 5, refer to the description in the related embodiments, and details are not described herein again.

In the embodiment of the present invention, the second station receives the configuration information of the first access information that is sent by the first station, where the configuration information of the first access information is used by the terminal to send the first access to the first station. The information is used to access the first station, so that the UE can access the first station to perform communication according to the SR or the SRS, without first performing random access, that is, first requesting resources from the target base station, thereby speeding up The access speed between the UE and the target base station reduces the signaling interaction process between the UE and the target base station, The delay of accessing the target base station.

The communication process of the second station with the first station and the UE is described in a specific application scenario. See Figure 9.

901. The second station sends a third message to the first site.

The third message is used to request that the user plane of the terminal be switched, or the control plane is switched, or the control plane and the user plane are respectively switched to different sites.

902. The second station receives the first message sent by the first station.

The first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration information of the transmitted data.

903. The second station sends a first indication message to the third station.

The first indication message is used to indicate that the third station stops communication with the terminal, and the user plane and/or control plane of the UE is at the third station.

904. The second station establishes a data transmission channel with the first station.

The second site may further perform data transfer with the second site.

905. The second station sends a second message to the UE.

The second message includes the first configuration information, where the first configuration information is used by the terminal to send first access information to the first station to access the first station for communication, where the One access

906. The second station receives a fourth message sent by the UE.

The fourth message is used to notify the UE to complete the configuration.

907. The second station sends a fifth message to the first site.

The fifth message is used to notify the first station that the UE completes configuration, and/or to notify the first station to communicate with the UE.

908. The second site activates communication between the UE and the first site.

The second station may activate communication between the UE and the first station, and the specific activation manner may be one of the following manners:

(1) receiving an activation message sent by the first station, where the activation message sent by the first station is used to indicate that the UE directly communicates with the first station or that the UE sends the first message to the first station. Accessing information, the first access information is used to request or activate communication with the first site; (2) sending an activation message to the UE, instructing the UE to directly communicate with the first station or instructing the UE to send first access information to the first station, where the first access information is used for requesting Or activation to communicate with the first site;

(3) transmitting an activation message to the UE and the first station, and notifying the UE and the first station to communicate;

And (4) transmitting the time-frequency resource information of the RRC connection reconfiguration complete message/handover completion message sent by the UE included in the first message to the first station, and sending the information to the UE.

909. The second station sends a second indication message to the third station.

The second indication message is used to indicate that the third station releases the reserved resource for the UE, or the configuration information of the UE, or the context information of the UE.

910. The second station sends a third indication message to the third station.

The third indication message is used to indicate that the third station continues to communicate with the UE.

The following describes the terminal in the embodiment of the present invention. Referring to FIG. 10, an embodiment of the terminal in the embodiment of the present invention includes:

The receiving unit 1001 is configured to receive a first message sent by the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of the scheduling request SR or configuration information of the sounding reference signal SRS or sent Configuration information for the data;

The sending unit 1002 is configured to send, according to the first configuration information, first access information to the first station to access the first station for communication, where the first access information is the SR or the SRS Or ACK or NACK or data.

further,

The sending unit 1002 is configured to not initiate random access to the first station, but directly send the first access information to the first station to access the first station; or

The first message in the embodiment of the present invention further includes:

The second configuration information, where the second configuration information is TA=0 of the UE and the first station, or first indication information; The second configuration information or the first indication information,

Used to indicate that random access is not initiated to the first site, or

And indicating that the first access information is not directly sent to the first station, and the first access information is directly sent to access the first station; or

And indicating to directly send the first access information to access the first station; or, to indicate sending the first access information instead of performing random access, to access the first site.

Further, the sending unit 1002 is configured to send, according to the configuration information of the SR, an ACK/NACK to the first station on a resource block that sends the SR, to access the first station for communication; or And sending, according to the configuration information of the SR, an ACK/NACK to the first station on a resource block that sends the SR, so that the first station acquires the SR according to the ACK/NACK.

Further, the terminal in the embodiment of the present invention may further include:

The communication unit 1003 is configured to directly communicate with the first station according to the first message, where the acquiring unit 1004 is configured to acquire configuration information that includes the sending data in the first message, where the configuration information of the sending data is Scheduling resource information allocated by the first station, and receiving or transmitting data to the first station on the allocated scheduling resource.

further,

The communication unit 1002 is further configured to directly communicate with the first station according to the received activation message sent by the first station;

Or,

Directly communicating with the first station according to the received activation message sent by the first station that is forwarded by the second station;

Or,

And directly communicating with the first station according to the received activation message sent by the second station.

The communication unit 1002 is further configured to send the first access information to the first station to access the first station for communication; or

And sending, according to the received activation message sent by the first station, the first access information to the first station to access the first station for communication; or,

And sending, according to the received activation message sent by the first station, the first station, the first access information to the first station to access the first station for communication;

Or,

And sending, according to the received activation message sent by the second station, the first access information to the first station to access the first station for communication;

Or,

And sending, according to the bandwidth information or the time-frequency resource information included in the first message, an RRC connection reconfiguration complete message/handover completion message to the first station, to access the first station for communication.

further,

The receiving unit 1001 is further configured to: if the first access information sent to the first station is an SR, receive information about a bandwidth allocated by the first station according to the SR;

The sending unit 1002 is further configured to send an RRC reconfiguration complete message/handover completion message to the first station according to the allocated bandwidth.

The configuration information of the SR in this embodiment includes:

Time-frequency resource information (SR resource ) of the SR, a configuration index of the SR, or a physical uplink control channel PUCCH resource block index of the SR;

The configuration information of the SRS includes: time-frequency resource information of the SRS.

further,

The obtaining unit 1004 is further configured to: obtain, according to the SR configuration index, the subframe information that is used to send the SR, and further, to obtain, according to the resource block index of the SR, the resource block information that sends the SR; The sending unit 1002 is further configured to send the SR or ACK or NACK to the first station on a resource block of the subframe.

The sending unit 1002 is further configured to send an ACK/NACK on the PUCCH resource block that sends the SR, so that the first station obtains the SR, and accesses the first station to perform communication, where the SR is The first SR sent to the first site.

The sending unit 1002 is further configured to send the RRC connection reconfiguration complete message/handover completion message on the time-frequency resource to access the first station.

The first message in the embodiment of the present invention further includes: indication information, where the indication information is used to refer to Show user plane switching; or,

DRB switching; or,

User plane bearer switching; or,

Switching from the second site to the first site; or

Transmitting the user plane data from the second station to the first station; or transferring the user data from the third station to the first station; or

Establishing a user plane on the first site; or

Establishing a bearer/DRB/user plane bearer on the first site; or

Adding a cell for user data transmission, where the cell is a cell of the first site. Or,

The indication information is used to indicate control plane switching; or

SRB switching; or,

Control plane switching from the second site to the first site; or

Transmitting control plane data from the second station to the first station; or, transmitting control signaling from the second station to the first station; or

The transmission of control signaling and the transmission of part of the user data are switched from the second station to the first station.

In this embodiment, the first message further includes at least one of the following: the identifier information of the first site, the cell identifier information of the first site, the carrier information of the first site, and the first site Carrier information of the cell and scheduling resource information allocated by the first station;

The first message further includes: maintaining configuration information or configuration indication information of the base station with the user plane when the control plane is switched, or maintaining configuration information or indication information of the base station with the control plane when the user plane switches;

The first message further includes at least one of the following: media intervention control MAC layer configuration information, packet data convergence protocol PDCP layer configuration information, radio link control protocol RLC layer configuration information, physical layer PHY configuration information, data Radio bearer configuration information of DRB ( s ), configuration information of logical channel, packet data convergence protocol sequence number PDCP SN.

The specific process of the respective functions in the terminal in the embodiment of the present invention is the same as the process described in the foregoing embodiment shown in FIG. 1 to FIG. 3, and details are not described herein again. In the embodiment of the present invention, the UE receives the first message sent by the second station, where the first configuration information is sent, and the first access information is sent to the first station to access the data according to the first configuration information. To access the first station for communication, without first performing random access, the resource needs to be requested from the target base station first, thereby speeding up the access speed between the UE and the target base station, and reducing the letter between the UE and the target base station. The interaction process is performed, thereby reducing the delay of accessing the target base station.

Referring to FIG. 11, an embodiment of the present invention further provides a site, including:

a generating unit 1101, configured to generate a first message for the second site;

The sending message unit 1102 is configured to send a first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or a configuration of a sounding reference signal SRS Information or configuration information of the transmission data, the first configuration information is used by the terminal to send the first access information to the first site to access the first site, where the first connection, the first a configuration information, where the terminal does not initiate random access to the first site, but directly sends the first access information to the first site to access the first site; or, Transmitting, by the terminal, the first access information to the first site to access the first site; or

The terminal sends the first access information to the first station instead of performing random access to access the first station.

The first message in this embodiment further includes:

The second configuration information, where the second configuration information is TA=0 of the terminal and the first station, or first indication information;

The second configuration information or the first indication information is used to indicate that the terminal does not initiate random access to the first site, or

And indicating that the terminal does not initiate random access to the first station, and directly sends the first access information to access the first station; or

Instructing the terminal to directly send the first access information to access the first site; or

Instructing the terminal to send the first access information instead of performing random access to access the First site.

It should be noted that the site in the embodiment of the present invention may further include:

The receiving message unit 1103 is configured to receive a second message sent by the second station, where the second message is used to switch the terminal or add at least one cell to the terminal.

The receiving message unit 1103 is further configured to receive a third message sent by the second station, where the third message is used to notify the terminal to complete configuration and/or to notify that communication starts with the terminal.

further,

The receiving message unit 1103 is further configured to receive data sent by the terminal, and start to communicate with the terminal;

Or,

The method further includes receiving, by the terminal, the first access information, where the first access information is used to request or activate communication with the terminal.

The receiving message unit 1103 is further configured to receive an activation message sent by the second station, where the activation message is used to request or activate communication with the terminal;

And receiving data of the terminal, starting to communicate with the terminal, or receiving the terminal to send first access information, where the first access information is used by the terminal to access for communication.

The sending message unit 1102 is further configured to send an activation message to the terminal to request or activate communication with the terminal;

The receiving message unit 1103 is further configured to receive data of the terminal, start to communicate with the terminal, or receive the first access information by the terminal, where the first access information is used for access by the terminal. Communication.

further,

The receiving message unit 1103 is further configured to receive the first access information sent by the terminal; or receive the first access information sent by the terminal;

If the first access information is an SR, the configuration information of the first access information includes a bandwidth allocated for the terminal, and the allocated bandwidth is used by the terminal to send an RRC reconfiguration complete message/ And completing a handover completion message, and receiving, by the terminal, the RRC reconfiguration complete message/handover completion message on the allocated bandwidth.

The receiving message unit 1103 is further configured to receive, by the terminal, send on a resource block of the SR AC ACK.

The receiving message unit 1103 is further configured to: receive, by the terminal, an ACK/NACK on a resource block of the SR, and acquire the SR according to the ACK/NACK, so that the terminal accesses to communicate.

The sending message unit 1102 is further configured to send on a PUCCH resource block that sends the SR.

ACK/NACK, to obtain the SR, to enable the terminal to access for communication, and the SR is to receive the first SR sent by the terminal.

The first configuration information in this embodiment includes at least one of the following:

The time-frequency resource information of the SR, the configuration index of the SR, or the physical uplink control channel PUCCH resource block index of the SR, the time-frequency resource information of the SRS, and the SRS uplink configuration information element.

The second message in this embodiment further includes:

The terminal sends time-frequency resource information of the RRC connection reconfiguration complete message/handover completion message. further,

The receiving message unit 1103 is further configured to receive, by using the time-frequency resource, the RRC connection reconfiguration complete message/handover completion message sent by the terminal, to start communicating with the terminal.

The receiving message unit 1103 is further configured to receive a third message sent by the second station, where the third message is used to notify the terminal to complete configuration and/or notify to start communicating with the terminal.

The first access information in the embodiment is used by the terminal to perform communication, and the method includes: the first access information used to request or activate communication with the terminal.

The site in this embodiment may further include:

The acquiring information unit 1104 is configured to acquire the SR according to the ACK/NACK, for requesting or activating communication with the terminal;

The establishing unit 1105 is configured to establish a data transmission channel with the second station.

further,

The sending message unit 1102 is further configured to send a first indication message to the third station, where the first indication message is used to instruct the third station to stop communication with the terminal.

The receiving message unit 1103 is further configured to receive a second indication message sent by the second station, where the second indication message is used to indicate that the third station releases resources reserved for the terminal, or Terminal configuration information, or the terminal context information.

The receiving message unit 1103 is further configured to receive a third indication message sent by the second station, where the third indication message is used to indicate that the third station continues to communicate with the terminal;

The receiving message unit 1103 is further configured to receive data of the terminal forwarded by the second station.

The switching of the terminal in the embodiment includes:

Switch the user plane of the terminal, or switch the control plane, or switch between the control plane and the user plane to different sites.

The user plane switching includes:

User plane switching of the terminal,

The DRB switching of the terminal; or

User plane bearer switching of the terminal; or

The user plane of the terminal is switched from the second site to the local; or

Transmitting the user plane data of the terminal from the second station to the local; or transmitting the user data of the terminal from the third station to the first station; or, at the first Establishing a user plane of the terminal on the site; or,

Establishing a bearer/DRB/user plane bearer of the terminal at the first site; or adding a cell for the terminal user data transmission to the terminal, where the cell is a cell of the first site.

The control plane switching includes:

Switching the control plane of the terminal; or

SRB switching of the terminal; or

The control plane of the terminal is switched from the second station to the first station; or the transmission of control plane data of the terminal is switched from the second station to the first station; or

Transmitting control signaling of the terminal from the second station to the first station; or transmitting transmission of control signaling of the terminal and transmission of part of user data from the second station to the First site.

The specific process of implementing the respective functions of each unit in the terminal in the embodiment of the present invention and the foregoing FIG. 4 to FIG. The processes described in the embodiment shown in FIG. 6 are the same and will not be described again here.

In the embodiment of the present invention, the first message is generated for the second station and sent to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information or detection of the scheduling request SR. The configuration information of the reference signal SRS or the configuration information of the transmission data, where the first configuration information is used by the terminal to send the first access information to the first station to access the first station, without performing random connection first In this case, the resource needs to be requested from the target base station first. Therefore, the access speed between the UE and the target base station is accelerated, and the signaling interaction process between the UE and the target base station is reduced, thereby reducing the delay of accessing the target base station.

The process of implementing the respective functions of the units in the site in the embodiment of the present invention is the same as that of the foregoing method, and details are not described herein again.

Referring to FIG. 12, an embodiment of the present invention further provides a site, including:

The receiving information unit 1201 is configured to receive a first message sent by the first station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or a data sending Configuration information;

The sending information unit 1202 is configured to send a second message to the terminal, where the second message includes the first configuration information, where the first configuration information is used by the terminal to send a first connection to the first station. Incoming information to access the first station for communication, the first access information is the SR or the

SRS or ACK or NACK or the data.

The first configuration information is used by the terminal to send first access information to the first station to access the first station for communication, so that the terminal does not initiate random connection to the first station. And directly transmitting the first access information to the first station to access the first station; or directly sending the first access information to the first station to access the first Or a first station; or sending the first access information to the first station instead of performing random access to access the first station.

The first message in this embodiment further includes:

The second configuration information, where the second configuration information is TA=0 of the terminal and the first station, or

First indication information;

The second configuration information or the first indication information, Used to indicate that random access is not initiated to the first site, or

further,

The sending information unit 1202 is further configured to send a third message to the first station, where the third message is used to request that the user plane of the terminal is switched, or the control plane is switched, or the control plane and the user plane are respectively switched to different sites. .

The user plane switching includes:

User plane switching of the terminal; or

The DRB switching of the terminal; or

User plane bearer switching of the terminal; or

The user plane of the terminal is switched from the local second site to the first site; or the transmission of the user plane data of the terminal is locally switched from the second site to the first site; or

The transmission of the user data of the terminal is switched from the third site to the first site; or the user plane of the terminal is established on the first site; or

Establishing a bearer/DRB/user plane bearer of the terminal at the first site; or adding a cell for the terminal user data transmission to the terminal, where the cell is the first site Community.

The control plane switching includes:

Switching the control plane of the terminal; or

SRB switching of the terminal; or

Transmitting control signaling of the terminal from the second station to the first station; or The transmission of the control signaling of the terminal and the transmission of part of the user data are switched from the second station to the first station.

further,

The sending information unit 1202 is further configured to receive a fourth message of the terminal, where the fourth message is used to notify the terminal to complete configuration.

The sending information unit 1202 is further configured to send a fifth message to the first station, where the fifth message is used to notify the first station that the terminal completes configuration, and/or notify the first station and the Terminal communication.

The receiving information unit 1201 is further configured to receive an activation message sent by the first station, where the activation message sent by the first station is used to indicate that the terminal directly communicates with the first station or indicates that the terminal is located Transmitting, by the first station, first access information, where the first access information is used to request or activate communication with the first station;

Or,

The sending information unit 1202 is further configured to send an activation message to the terminal, to indicate that the terminal directly communicates with the first station, or that the terminal sends the first access information to the first station, where Decoding the first access information for requesting or activating communication with the first site;

Or,

The sending information unit 1202 is further configured to send an activation message to the terminal and the first station, to notify the terminal to communicate with the first station;

Or,

The sending information unit 1202 is further configured to send, to the terminal, the time-frequency resource information of the RRC connection reconfiguration complete message/handover completion message sent by the terminal included in the received first message to the first station. .

The first message in this embodiment further includes at least one of the following:

The base station of the source user plane base station of the terminal, and the cell mark of the source user plane base station of the terminal The indication of the source control plane base station of the terminal, the cell identifier of the source control plane base station of the terminal, the identifier of the target base station that the terminal performs handover, and the target cell identifier of the handover of the terminal.

The first message in this embodiment further includes:

Media access control MAC layer configuration information, packet data convergence protocol PDCP layer configuration information, radio link control protocol RLC layer configuration information, physical layer PHY configuration information, data radio bearer DRB (s) configuration information, logic Channel configuration information, packet data convergence protocol sequence number PDCP SN.

The sending information unit 1202 is further configured to send a first indication message to the third station, where the first indication message is used to instruct the third station to stop communication with the terminal.

In this embodiment, the site may further include:

Establishing a channel unit 1203, configured to establish a data transmission channel with the first station;

Or,

The establishing channel unit 1203 is configured to establish a data transmission channel with the first station, where the sending message unit is further configured to send data of the terminal to the first station.

The sending information unit 1202 is further configured to send a second indication message to the third station, where the second indication message is used to indicate that the third station releases the reserved resource for the terminal, or Configuration information of the terminal, or context information of the terminal.

The sending information unit 1202 is further configured to send a third indication message to the third station, where the third indication message is used to indicate that the third station continues to communicate with the terminal.

The specific process for implementing the respective functions of the units in the site in the embodiment of the present invention is the same as the process described in the foregoing embodiments shown in FIG. 7 to FIG. 9, and details are not described herein again.

In the embodiment of the present invention, the second message sent by the second station is received, where the second message is used to switch the terminal or add at least one cell for data transmission to the terminal, and the first station sends the first message to The first site, the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or configuration information of sending data, the first The configuration information is used by the terminal to send the first to the first station Accessing the information to access the first station, without first performing random access, that is, first requesting resources from the target base station, thereby speeding up the access speed between the UE and the target base station, and reducing the connection between the UE and the target base station. Signaling interaction process, thereby reducing the delay of accessing the target base station.

Referring to FIG. 13, an embodiment of the present invention further provides a system for accessing a website, including: a terminal, 1301, a first station 1302, and a second station 1303;

The terminal 1301 is configured to receive a first message sent by the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or a configuration of a sounding reference signal SRS. Information or configuration information for transmitting data; transmitting, according to the first configuration information, first access information to the first station to access the first station for communication, where the first station is connected to the first station 1302, And a first message is sent to the second station, where the first message includes the first configuration information, where the first configuration information includes configuration information or a probe reference of the scheduling request SR. The configuration information of the signal SRS or the configuration information of the sent data, where the first configuration information is used by the terminal to send the first access information to the first station to access the first station, where the first access The information is the SR or the SRS or ACK or NACK or the data;

The second station 1303 is configured to receive a first message sent by the first station, where the first message includes first configuration information, where the first configuration information includes configuration information of the scheduling request SR or the sounding reference signal SRS or is sent. Sending a second message to the terminal, the second message includes the first configuration information, where the first configuration information is used by the terminal to send the first access information to the first station Communicating by accessing the first station, the first access information is the SR or the SRS or ACK or NACK or the data.

The specific process of the terminal, the first site, and the second site in the system for accessing the site in the embodiment of the present invention is the same as the process described in the foregoing embodiment shown in FIG. 1 to FIG. 12, and details are not described herein again. .

The functions of the functional modules of the device for processing the test parameters in this embodiment may be specifically implemented according to the method in the foregoing method embodiment. For the specific implementation process, reference may be made to the related description of the foregoing method embodiments, and details are not described herein again.

Those skilled in the art can understand that all or part of the steps in the method of implementing the above embodiments are The instructions are stored in a computer readable storage medium, which may be a read only memory, a magnetic disk or an optical disk, or the like.

The method, device, and system for accessing an access site provided by the present invention are described in detail above. For those skilled in the art, according to the idea of the embodiment of the present invention, the specific implementation manner and application scope may be changed. In the above, the contents of this specification are not to be construed as limiting the invention.

+

Claims

Rights request

1. A method of accessing a site, characterized by: including:

Receive a first message sent by the second station, where the first message includes first configuration information, and the first configuration information includes configuration information of the scheduling request SR or configuration information of the sounding reference signal SRS or configuration information for transmitting data;

According to the first configuration information, send first access information to the first station to access the first station for communication, where the first access information is the SR or the SRS or ACK or NACK or the Describe the data.

2. The method according to claim 1, characterized in that: sending the first access information to the first site to access the first site for communication includes:

Not initiating random access to the first site, but directly sending the first access information to the first site to access the first site; or

Send the first access information directly to the first station to access the first station; or send the first access information to the first station instead of performing random access to access the first station. First site.

3. The method according to claim 1, characterized in that the first message further includes: second configuration information, the second configuration information is TA=0 between the UE and the first station, or a first indication information;

the second configuration information or first indication information,

Used to indicate not to initiate random access to the first station, or

Used to indicate not to initiate random access to the first site, but to directly send the first access information to access the first site; or

used to instruct to send the first access information directly to access the first site; or to instruct to send the first access information instead of performing random access to access the first site.

4. The method according to claim 3, characterized in that,

The configuration information or first indication information is sent by the first station to the second station.

5. The method according to claim 1, characterized in that: sending the first access information to the first site to access the first site for communication includes:

According to the configuration information of the SR, send the SR to the first station on the resource block where the SR is sent. Send ACK/NACK to access the first site for communication;

or

According to the configuration information of the SR, an ACK/NACK is sent to the first station on the resource block in which the SR is sent, so that the first station obtains the SR according to the ACK/NACK.

6. The method according to claim 1, characterized in that, after receiving the first message sent by the second station, the method further includes:

Communicate directly with the first site based on the first message.

7. The method according to claim 6, wherein the directly communicating with the first site according to the first message includes:

Obtain the configuration information for sending data contained in the first message, the configuration information for sending data is the scheduling resource information allocated by the first site, and receive or send data to the first site on the allocated scheduling resources;

Communicate directly with the first site on allocated scheduling resources according to the first message.

8. The method according to any one of claims 1 to 7, characterized in that, after receiving the first message sent by the second site, the step includes:

Directly communicate with the first station according to the received activation message sent by the first station;

or

Communicate directly with the first site according to the received activation message sent by the first site forwarded by the second site;

or

Directly communicate with the first station according to the received activation message sent by the second station.

9. The method according to any one of claims 1 to 7, characterized in that, after receiving the first message sent by the second site, the step includes:

Send first access information to the first site to access the first site for communication; or send first access information to the first site according to the received activation message sent by the first site. Access the first site for communication;

or

According to the received activation message sent by the first station and forwarded by the second station, send the message to the third station. A station sends first access information to access the first station for communication;

or

According to the received activation message sent by the second station, send the first access information to the first station to access the first station for communication;

or

According to the bandwidth information or time-frequency resource information contained in the first message, send an RRC connection reconfiguration completion message/handover completion message to the first site to access the first site for communication.

10. The method according to any one of claims 1 to 9, wherein the sending the first access information to the first site to access the first site for communication includes:

If the first access information sent to the first station is an SR, receive information about the bandwidth allocated by the first station according to the SR;

Send an RRC reconfiguration complete message/handover complete message to the first station according to the allocated bandwidth.

11. The method according to any one of claims 1 to 10, characterized in that the configuration information of the SR includes:

The time-frequency resource information (SR resource) of the SR, the configuration index of the SR, or the physical uplink control channel PUCCH resource block index of the scheduled SR.

12. The method according to any one of claims 1 to 10, characterized in that the configuration information of the SRS includes:

The time-frequency resource information of the SRS and/or the SRS uplink configuration information unit.

13. The method according to any one of claims 1 to 10, characterized in that, when the configuration information of the SR includes the configuration index of the SR and the PUCCH resource block index for scheduling the SR, the The first station sending the first access information to access the first station for communication includes: obtaining the subframe information for sending the SR according to the SR configuration index;

According to the PUCCH resource block index of the SR, obtain the resource block information for sending the SR; send the SR or ACK or NACK to the first station on the resource block of the subframe.

14. The method according to claim 5, characterized in that: sending ACK/NACK to the first station on the resource block in which the SR is sent includes: Sending ACK/NACK to the first station on the resource block for sending the SR is the first communication with the first station.

15. The method according to claim 5, wherein before sending ACK/NACK to the first station on the resource block in which the SR is sent, the method includes:

Resource information for feeding back ACK/NACK to the first station is not received; or there is no HARQ or ARQ communication with the first station.

16. The method according to claim 5, characterized in that: sending ACK/NACK to the first station on the resource block for sending the SR, so that the first station obtains the ACK/NACK according to the ACK/NACK. The SR includes:

ACK/NACK is sent on the PUCCH resource block where the SR is sent, so that the first station obtains the SR to access the first station for communication.

17. The method according to claim 5, characterized in that the PUCCH resource block sending the SR is sent to the first station on the PUCCH resource block, so that the first station obtains the ACK/NACK according to the ACK/NACK. The SR includes:

Send ACK/NACK on the PUCCH resource block that sends the SR, so that the first station obtains the SR to access the first station for communication, where the SR is the first station sent to the first station. A SR.

18. The method according to any one of claims 1 to 17, characterized in that,

The first message also includes: time-frequency resource information of the RRC connection reconfiguration complete message/handover complete message sent by the first station;

Sending the first access information to the first site to access the first site for communication includes:

The RRC connection reconfiguration completion message/handover completion message is sent on the time-frequency resource to access the first site.

19. The method according to claims 1-18, characterized in that: sending first access information to the first site to access the first site for communication includes:

First access information is sent to the first station to request or activate communication with the first station.

20. The method according to any one of claims 1 to 19, characterized in that the first message further includes: indication information, the indication information is used to indicate User plane switching; or

DRB switching; or

User plane bearer switching; or

The user plane switches from the second site to the first site; or

The transmission of user plane data is switched from the second site to the first site; or

The transmission of user data is switched from the third site to the first site; or

Establish a user interface on the first site; or

Establish a bearer/DRB/user plane bearer on the first site; or

Add a cell for user data transmission, where the cell is a cell of the first site.

21. The method according to any one of claims 1 to 20, characterized in that the first message further includes:

Instruction information, the instruction information is used to indicate

Control plane switching; or

SRB switching; or

The control plane is switched from the second site to the first site; or

The transmission of control plane data is switched from the second site to the first site; or

The transmission of control signaling is switched from the second site to the first site; or

The transmission of control signaling and partial user data is switched from the second site to the first site.

22. The method according to any one of claims 1 to 20, characterized in that the first message further includes at least one of the following:

The identification information of the first site, the cell identification information of the first site, the carrier information of the first site, the carrier information of the cell of the first site, and the scheduling resource information allocated by the first site.

23. The method according to any one of claims 1 to 22, characterized in that the first message further includes:

Maintain configuration information or configuration instruction information with the user plane base station during control plane handover, or maintain configuration information or instruction information with the control plane base station during user plane handover.

24. The method according to any one of claims 1 to 23, characterized in that the first message further includes at least one of the following: Media intervention control MAC layer configuration information, packet data convergence protocol PDCP layer configuration information, radio link control protocol RLC layer configuration information, physical layer PHY configuration information, data radio bearer DRB (s) configuration information, logical channel Configuration information, Packet Data Convergence Protocol Serial Number PDCP SN.

25. The method according to claim 1, characterized in that the ACK or NACK includes:

The ACK or NACK is a special SR; or

The ACK or NACK is the first SR communicated with the first station; or the ACK or NACK is used to replace the random access to access the first station.

26. A method of accessing a site, characterized by including:

generating the first message for the second site;

Send a first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of the scheduling request SR or configuration information of the sounding reference signal SRS or configuration information of sending data. , the first configuration information is used by the terminal to send first access information to the first site to access the first site, where the first access information is the SR or the SRS or ACK Or NACK or the data.

27. The method according to claim 26, wherein the first configuration information is used by the terminal to send first access information to the first site to access the first site for communication, including: The first configuration information is used for the terminal not to initiate random access to the first site, but to directly send the first access information to the first site to access the first site; or

The terminal directly sends the first access information to the first site to access the first site; or

28. The method according to claim 26, characterized in that the first message further includes: second configuration information, the second configuration information is TA=0 between the terminal and the first site, or a third 1. instruction information;

the second configuration information or first indication information,

used to instruct the terminal not to initiate random access to the first site, or

Used to instruct the terminal not to initiate random access to the first site and directly send the first access Enter information to access the first site; or

For instructing the terminal to directly send the first access information to access the first site; or for instructing the terminal to send the first access information instead of performing random access to access the first site. First site.

29. The method according to claim 26, characterized in that before sending the first message to the second site, the step includes:

Receive a second message sent by the second station, where the second message is used to switch the terminal or add at least one cell to the terminal.

30. The method according to claim 26, wherein the sending the first message to the second site includes:

Receive a third message sent by the second station, where the third message is used to notify the terminal to complete configuration and/or to notify to start communication with the terminal.

31. The method according to claim 26, wherein after sending the first message to the second site, the method further includes:

Receive the data sent by the terminal and start communicating with the terminal;

or

Receive first access information sent by the terminal, where the first access information is used to request or activate communication with the terminal.

32. The method of claim 26, further comprising:

Receive an activation message sent by the second station, the activation message being used to request or activate communication with the terminal;

Receive data from the terminal and start communicating with the terminal, or receive first access information sent by the terminal, and the first access information is used for the terminal to access and communicate.

33. The method according to claim 26 or 30, characterized in that, after receiving the first message or the third message sent by the first station, the method further includes:

Send an activation message to the terminal to request or activate communication with the terminal;

34. The method according to claim 27, wherein after receiving the third message sent by the second station, the method further includes: Send an activation message to the second station, so that the second station sends a second activation message to the terminal for requesting or activating communication with the terminal;

35. The method according to any one of claims 26-34, characterized in that the method further includes:

Receive the first access information sent by the terminal;

or

Receive the first access information sent by the terminal;

If the first access information is SR, the configuration information of the first access information includes the bandwidth allocated to the terminal, and the allocated bandwidth is used by the terminal to send the RRC reconfiguration complete message/ Handover complete message, and receive the RRC reconfiguration complete message/handover complete message sent by the terminal on the allocated bandwidth.

36. The method according to claims 26-34, characterized in that receiving the first access information sent by the terminal includes:

Receive the ACK/NACK sent by the terminal on the resource block of the SR.

37. The method according to claim 36, wherein the receiving the ACK/NACK sent by the terminal on the resource block of the SR includes:

Before receiving the ACK/NACK sent by the terminal on the resource block of the SR, no resources for feedback ACK/NACK are allocated to the terminal; or

Before receiving the ACK/NACK sent by the terminal on the resource block of the SR, there is no ARQ/HARQ communication with the terminal; or

Sending ACK/NACK to the first station on the resource block for sending the SR is the first communication with the first station.

38. The method according to claim 37, wherein receiving the terminal to send ACK/NACK on the resource block of the SR includes:

Receive the terminal to send ACK/NACK on the resource block of the SR, and obtain the SR according to the ACK/NACK, so that the terminal accesses for communication.

39. The method according to claim 38, characterized in that: the receiving terminal sends ACK/NACK on the resource block of the SR, and obtains the SR according to the ACK/NACK, To activate communication with the terminal, including:

ACK/NACK is sent on the PUCCH resource block where the SR is sent, to obtain the SR, so that the terminal accesses for communication, and the SR is the first SR sent by the terminal.

40. The method according to claim 26, characterized in that the first configuration information includes at least one of the following:

The time-frequency resource information of the SR, the configuration index of the SR, or the physical uplink control channel PUCCH resource block index of the SR, the time-frequency resource information of the SRS, or the SRS uplink configuration information unit.

41. The method according to any one of claims 19 to 40, characterized in that the second message further includes:

The terminal sends the time-frequency resource information of the RRC connection reconfiguration complete message/handover complete message.

42. The method of claim 41, further comprising:

The RRC connection reconfiguration complete message/handover complete message sent by the terminal is received on the time-frequency resource to start communication with the terminal.

43. The method according to any one of claims 26 to 42, characterized in that, after sending the second message to the second site, it further includes:

Receive a third message sent by the second station, the third message being used to notify the terminal to complete configuration and/or to notify to start communication with the terminal.

44. The method according to claims 26 to 43, characterized in that the first access information is used for the terminal to access and communicate, including: the first access information is used to request or activate communication with the terminal. communicate with the terminal.

45. The method according to claims 38-39, characterized in that: obtaining the SR according to the ACK/NACK so that the terminal accesses for communication includes:

The SR is obtained according to the ACK/NACK for requesting or activating communication with the terminal.

46. The method according to any one of claims 26 to 43, characterized in that, after sending the second message to the second site, the method further includes:

Establish a data transmission channel with the second site.

47. The method according to any one of claims 25 to 45, characterized in that, after sending the second message to the second site, the method further includes: A first instruction message sent to the third station, the first instruction message being used to instruct the third station to stop communication with the terminal.

48. The method according to any one of claims 25 to 47, characterized in that, after sending the second message to the second site, the method further includes:

Receive a second indication message sent by the second station, the second indication message being used to instruct the third station to release the resources reserved for the terminal, or the terminal configuration information, or the terminal context information .

49. The method according to any one of claims 25 to 47, characterized in that, after sending the second message to the second site, the method further includes:

Receive a third instruction message sent by the second station, where the third instruction message is used to instruct the third station to continue communicating with the terminal.

50. The method according to any one of claims 25 to 49, characterized in that, after sending the second message to the second site, the method further includes:

Receive the data of the terminal forwarded by the second station.

51. The method according to claim 29, characterized in that said switching the terminal includes:

Switch the user plane of the terminal, or switch the control plane, or switch the control plane and user plane to different sites respectively.

52. The method according to claim 51, characterized in that the user plane switching includes: user plane switching of the terminal,

DRB switching of the terminal; or

User plane bearer switching of the terminal; or

The user plane of the terminal is switched from the second site to the local site; or

The transmission of user plane data of the terminal is switched from the second site to the local; or the transmission of user data of the terminal is switched from the third site to the first site; or on the first site Establishing a user plane of the terminal; or

Establish the bearer/DRB/user plane bearer of the terminal on the first site; or

Add a cell for the terminal user data transmission, and the cell is the cell of the first site.

53. The method according to claim 51, characterized in that the control plane switching includes: Control plane switching of the terminal; or

SRB switching of the terminal; or

The control plane of the terminal is switched from the second site to the first site; or

The transmission of control plane data of the terminal is switched from the second site to the first site; or the transmission of control signaling of the terminal is switched from the second site to the first site; or the The transmission of the terminal's control signaling and part of the user data is switched from the second site to the first site.

54. The method according to claim 26, characterized in that the ACK or NACK includes:

The ACK or NACK is a special SR; or

55. A method of accessing a site, characterized by including:

Receive a first message sent by the first station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration information of sending data;

Send a second message to the terminal, where the second message includes the first configuration information, and the first configuration information is used by the terminal to send first access information to the first site to access the The first station communicates, and the first access information is the SR or the SRS or ACK or NACK or the data.

56. The method according to claim 55, wherein the first configuration information for the terminal to send first access information to the first site to access the first site for communication includes:

The first configuration information is used by the terminal to send first access information to the first site to access the first site for communication, so that the terminal does not initiate random access to the first site, And directly send the first access information to the first site to access the first site; or

57. The method according to claim 55, characterized in that the first message further includes: Second configuration information, the second configuration information is TA=0 between the terminal and the first site, or

first instruction information;

the second configuration information or first indication information,

Used to indicate not to initiate random access to the first station, or

58. The method according to claim 55, characterized in that, before receiving the first message sent by the first station, further comprising:

A third message is sent to the first site, where the third message is used to request to switch the user plane of the terminal, or to switch the control plane, or to switch the control plane and the user plane to different sites respectively.

59. The method according to claim 58, characterized in that the user plane switching includes: user plane switching of the terminal; or

DRB switching of the terminal; or

User plane bearer switching of the terminal; or

The user plane of the terminal is switched locally from the second site to the first site; or the transmission of user plane data of the terminal is switched locally from the second site to the first site; or

The transmission of user data of the terminal is switched from the third site to the first site; or a user plane of the terminal is established on the first site; or

Add a cell for the terminal for data transmission of the terminal user, where the cell is a cell of the first site.

60. The method according to claim 58, characterized in that the control plane switching includes: control plane switching of the terminal; or

SRB switching of the terminal; or

The control plane of the terminal is switched from the second site to the first site; or The transmission of control plane data of the terminal is switched from the second site to the first site; or the transmission of control signaling of the terminal is switched from the second site to the first site; or the The transmission of the terminal's control signaling and part of the user data is switched from the second site to the first site.

61. The method according to any one of claims 55 to 60, characterized in that the first configuration information includes at least one of the following:

The time-frequency resource information of the SR, the configuration index (SR CONFIGURE INDEX) of the SR, the physical uplink control channel resource block index (SR PUCCH resource index) of the SR, the time-frequency resource information of the SRS, The SRS uplink configuration information unit.

62. The method according to any one of claims 55 to 61, characterized in that, after sending the second message to the terminal, the method further includes:

Receive a fourth message from the terminal, where the fourth message is used to notify the terminal to complete the configuration.

63. The method according to claim 62, characterized in that, after receiving the fourth message from the terminal, further comprising:

Send a fifth message to the first station, the fifth message being used to notify the first station that the terminal completes configuration, and/or, notify the first station to communicate with the terminal.

64. The method according to claim 63, wherein the sending the fifth message to the first site includes:

Receive an activation message sent by the first station. The activation message sent by the first station is used to instruct the terminal to directly communicate with the first station or to instruct the terminal to send first access information to the first station. , the first access information is used to request or activate communication with the first site;

or

Send an activation message to the terminal to instruct the terminal to directly communicate with the first site or to instruct the terminal to send first access information to the first site, where the first access information is used to request or activating communication with said first site;

or

Send an activation message to the terminal and the first site to notify the terminal to communicate with the first site;

or

The terminal included in the received first message will send an RRC connection to the first station. The time-frequency resource information of the reconfiguration completion message/handover completion message is sent to the terminal.

65. The method according to any one of claims 26 to 64, characterized in that the first message further includes at least one of the following:

The base station identifier of the source user plane base station of the terminal, the cell identifier of the source user plane base station of the terminal, the identifier of the source control plane base station of the terminal, the cell identifier of the source control plane base station of the terminal, the terminal The identification of the target base station for handover and the identification of the target cell for handover by the terminal.

66. The method according to any one of claims 26 to 65, characterized in that the first message further includes:

The terminal maintains configuration indication information with the user plane base station during control plane handover, or the terminal maintains configuration indication information with the control plane base station during user plane handover.

67. The method according to any one of claims 26 to 65, characterized in that the configuration information of the first access information includes at least one of the following:

The configuration information of the media access control MAC layer, the configuration information of the packet data convergence protocol PDCP layer, the configuration information of the radio link control protocol RLC layer, the configuration information of the physical layer PHY, the configuration information of the data radio bearer DRB (s), logical Channel configuration information, packet data convergence protocol sequence number PDCP SN.

68. The method according to any one of claims 26 to 67, characterized in that, after receiving the first message from the first site, the method further includes:

Send a first instruction message to the third station, where the first instruction message is used to instruct the third station to stop communication with the terminal.

69. The method according to any one of claims 47 to 67, characterized in that, after receiving the first message from the first site, the method further includes:

Establish a data transmission channel with the first site;

or

Establish a data transmission channel with the first station, and send data of the terminal to the first station.

70. The method according to claim 62, wherein the receiving the fourth message sent by the terminal further includes:

Send a second instruction message to the third site, where the second instruction message is used to instruct the third site to release the resources reserved for the terminal, or the configuration information of the terminal, or the terminal's configuration information. Contextual information.

71. The method according to claim 70, characterized in that, after sending the second instruction message to the third site, the step includes:

Send a third instruction message to the third station, the third instruction message being used to instruct the third station to continue communicating with the terminal.

72. A terminal, characterized by including:

A receiving unit, configured to receive the first message sent by the second station, the first message including first configuration information, and the first configuration information including the configuration information of the scheduling request SR or the configuration information of the sounding reference signal SRS or sending data. Configuration information used;

A sending unit, configured to send first access information to the first site according to the first configuration information to access the first site for communication, where the first access information is the SR or the SRS or ACK or NACK or data.

73. The terminal according to claim 72, characterized in that,

The sending unit is configured to not initiate random access to the first station, but to directly send the first access information to the first station to access the first station; or

74. The terminal according to claim 72 or 73, characterized in that,

The first message also includes:

Second configuration information, the second configuration information is TA=0 between the UE and the first station, or first indication information;

the second configuration information or first indication information,

Used to indicate not to initiate random access to the first station, or

75. The terminal according to claim 74, characterized in that,

The sending unit is also configured to send the resources of the SR according to the configuration information of the SR. Send ACK/NACK to the first station on the resource block to access the first station for communication; or, according to the configuration information of the SR, send ACK/NACK to the first station on the resource block where the SR is sent. ACK/NACK, so that the first station obtains the SR according to the ACK/NACK.

76. The terminal according to claim 75, characterized in that, the terminal further includes: a communication unit, configured to directly communicate with the first site according to the first message.

77. The terminal according to claim 76, characterized in that, the terminal further includes: an acquisition unit, configured to acquire the configuration information of sending data contained in the first message, and the configuration information of sending data is the Scheduling resource information allocated by the first station, and receiving or sending data to the first station on the allocated scheduling resources.

78. The terminal according to any one of claims 72 to 77, characterized in that,

The communication unit is also configured to directly communicate with the first station according to the received activation message sent by the first station;

or

79. The terminal according to any one of claims 72 to 77, characterized in that,

The sending unit is also used to,

Send first access information to the first site to access the first site for communication; or, send first access information to the first site according to the received activation message sent by the first site. To access the first site for communication;

or

According to the received activation message sent by the first station forwarded by the second station, send first access information to the first station to access the first station for communication;

or

According to the received activation message sent by the second station, send first access information to the first station to access the first station for communication;

or According to the bandwidth information or time-frequency resource information contained in the first message, an RRC connection reconfiguration complete message/handover complete message is sent to the first station to access the first station for communication.

80. The terminal according to any one of claims 72 to 79, characterized in that,

The receiving unit is further configured to, if the first access information sent to the first station is an SR, receive information about the bandwidth allocated by the first station according to the SR;

The sending unit is also configured to send an RRC reconfiguration completion message/handover completion message to the first station according to the allocated bandwidth.

81. The terminal according to any one of claims 72 to 80, characterized in that the configuration information of the SR includes:

The time-frequency resource information (SR resource) of the SR, the configuration index of the SR, or the physical uplink control channel PUCCH resource block index of the scheduled SR;

The SRS configuration information includes: time-frequency resource information of the SRS or the SRS uplink configuration information unit.

82. The terminal according to any one of claims 72 to 81, characterized in that,

The acquisition unit is further configured to obtain the subframe information for sending the SR according to the SR configuration index; and is further configured to obtain the resource block information for sending the SR according to the resource block index of the SR; the sending The unit is further configured to send the SR or ACK or NACK to the first station on the resource block of the subframe.

83. The terminal according to any one of claims 72 to 82, characterized in that,

The sending unit is also configured to send ACK/NACK on the PUCCH resource block sending the SR, so that the first station obtains the SR to access the first station for communication, and the SR is sent The first SR to the first site.

The sending unit is further configured to send the RRC connection reconfiguration complete message/handover complete message on the time-frequency resource to access the first site.

84. The terminal according to any one of claims 72 to 83, characterized in that,

The first message also includes: indication information, the indication information is used to indicate,

User plane switching; or

DRB switching; or

User plane bearer switching; or The user plane switches from the second site to the first site; or

Establish a user interface on the first site; or

Establish a bearer/DRB/user plane bearer on the first site; or

Add a cell for user data transmission, where the cell is a cell of the first site. or

The instruction information is used to indicate,

Control plane switching; or

SRB switching; or

The control plane is switched from the second site to the first site; or

85. The terminal according to any one of claims 72 to 84, characterized in that,

The first message also includes at least one of the following: identification information of the first site, cell identification information of the first site, carrier information of the first site, and carrier information of the cell of the first site. , Scheduling resource information allocated by the first site;

The first message also includes: maintaining configuration information or configuration instruction information with the user plane base station during control plane handover, or maintaining configuration information or instruction information with the control plane base station during user plane handover;

The first message also includes at least one of the following: configuration information of the media access control MAC layer, configuration information of the PDCP layer of the Packet Data Convergence Protocol, configuration information of the RLC layer of the Radio Link Control Protocol, configuration information of the physical layer PHY, data Wireless bearer DRB (s) configuration information, logical channel configuration information, packet data convergence protocol sequence number PDCP SN.

86. A site, characterized by: including:

A generating unit, configured to generate the first message for the second site;

A message sending unit, configured to send a first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of the scheduling request SR or detection parameters. The configuration information of the reference signal SRS or the configuration information of sending data, the first configuration information is used by the terminal to send the first access information to the first site to access the first site, the first access The incoming information is the SR or the SRS or ACK or NACK or data.

87. The site according to claim 86, characterized in that,

The first configuration information is used for the terminal not to initiate random access to the first site, but to directly send the first access information to the first site to access the first site; or

88. The site according to claim 86 or 87, characterized in that the first message further includes:

Second configuration information, the second configuration information is TA=0 between the terminal and the first site, or first indication information;

The second configuration information or first indication information is used to instruct the terminal not to initiate random access to the first site, or

For instructing the terminal not to initiate random access to the first site, but to directly send the first access information to access the first site; or

For instructing the terminal to directly send the first access information to access the first site; or,

Used to instruct the terminal to send the first access information instead of performing random access to access the first site.

89. The site according to any one of claims 85 to 88, characterized in that the site further includes:

The message receiving unit is also configured to receive a second message sent by the second station, where the second message is used to switch the terminal or add at least one cell to the terminal.

90. The site according to any one of claims 86 to 89, characterized in that,

The message receiving unit is further configured to receive a third message sent by the second station, where the third message is used to notify the terminal to complete the configuration and/or to notify the start of communication with the terminal.

91. The site according to any one of claims 86 to 90, characterized in that, The message receiving unit is also used to receive data sent by the terminal and start communicating with the terminal; or

92. The site according to any one of claims 86 to 91, characterized in that,

The message receiving unit is also configured to receive an activation message sent by the second station, where the activation message is used to request or activate communication with the terminal;

93. The site according to any one of claims 86 to 90, characterized in that,

The message sending unit is also used to send an activation message to the terminal to request or activate communication with the terminal;

The message receiving unit is also configured to receive data from the terminal and start communication with the terminal, or receive first access information sent by the terminal, and the first access information is used for the terminal to access and communicate. .

94. The site according to any one of claims 86 to 93, characterized in that,

The message receiving unit is also used to,

Receive the first access information sent by the terminal;

or

Receive the first access information sent by the terminal;

95. The site according to any one of claims 86 to 94, characterized in that,

The receiving message unit is also used to receive the AC ACK sent by the terminal on the resource block of the SR.

96. The site according to claim 95, characterized in that,

The receiving message unit is also configured to receive the ACK/NACK sent by the terminal on the resource block of the SR, and obtain the SR according to the ACK/NACK, so that the terminal access is performed. communication.

97. The site according to any one of claims 86 to 96, characterized in that,

The message sending unit is also configured to send ACK/NACK on the PUCCH resource block that sends the SR, so as to obtain the SR, so that the terminal can access for communication, where the SR is received by the terminal. First SR.

98. The site according to claim 86, characterized in that the first configuration information includes at least one of the following:

The time-frequency resource information of the SR, the configuration index of the SR, or the physical uplink control channel PUCCH resource block index of the SR, the time-frequency resource information of the SRS, and the SRS uplink configuration information unit.

99. The site according to any one of claims 86 to 98, characterized in that the second message further includes:

100. The site according to claim 99, characterized in that,

The message receiving unit is also configured to receive the message sent by the terminal on the time-frequency resource.

RRC connection reconfiguration completion message/handover completion message to start communication with the terminal.

101. The site according to any one of claims 86 to 99, characterized in that,

The message receiving unit is further configured to receive a third message sent by the second station, where the third message is used to notify the terminal to complete the configuration and/or notify to start communication with the terminal.

102. The device according to any one of claims 86 to 101, characterized in that the first access information is used for the terminal to access for communication, including: the first access information is used to request or Activate communication with said terminal.

103. The site according to any one of claims 86 to 102, characterized in that the site further includes:

An information acquisition unit is used to obtain the SR according to the ACK/NACK for requesting or activating communication with the terminal.

104. The site according to any one of claims 86 to 103, characterized in that the site further includes:

An establishing unit is used to establish a data transmission channel with the second site.

105. The site according to any one of claims 86 to 104, characterized in that, The message sending unit is also used to send a first instruction message to the third station, where the first instruction message is used to instruct the third station to stop communication with the terminal.

106. The site according to any one of claims 86 to 105, characterized in that, the message receiving unit is also used to receive a second instruction message sent by the second site, and the second instruction message is used to Instruct the third site to release resources reserved for the terminal, or the terminal configuration information, or the terminal context information.

107. The site according to any one of claims 86 to 106, wherein the sending the second message to the second site further includes:

The message receiving unit is further configured to receive a third instruction message sent by the second station, where the third instruction message is used to instruct the third station to continue communicating with the terminal.

108. The site according to any one of claims 86 to 107, characterized in that: the message receiving unit is further configured to receive data of the terminal forwarded by the second site.

109. The site according to any one of claims 86 to 108, wherein the switching of the terminal includes:

110. The site according to any one of claims 86 to 109, characterized in that the user plane switching includes:

User plane switching of the terminal,

DRB switching of the terminal; or

User plane bearer switching of the terminal; or

Establish the bearer/DRB/user plane bearer of the terminal on the first site; or add a cell for the terminal for data transmission of the terminal user, and the cell is the cell of the first site.

The control plane switching includes:

Control plane switching of the terminal; or SRB switching of the terminal; or

111. A site, characterized by: including:

An information receiving unit, configured to receive a first message sent by the first station, where the first message includes first configuration information, and the first configuration information includes configuration information of the scheduling request SR or the sounding reference signal SRS or the configuration of sending data. information;

An information sending unit, configured to send a second message to the terminal, where the second message includes the first configuration information, and the first configuration information is used by the terminal to send a first access message to the first site. The information is communicated by accessing the first station, and the first access information is the SR or the SRS or ACK or NACK or the data.

112. The site according to claim 111, characterized in that,

113. The site according to claim 111 or 112, characterized in that the first message further includes:

Second configuration information, the second configuration information is TA=0 between the terminal and the first site, or

first instruction information;

the second configuration information or first indication information,

Used to indicate not to initiate random access to the first station, or

Used to indicate not to initiate random access to the first site, but to directly send the first access information to access the first site; or It is used to instruct to send the first access information directly to access the first site; or to instruct to send the first access information instead of performing random access to access the first site.

114. The site according to any one of claims 111 to 113, characterized in that the information sending unit is also used to send a third message to the first site, and the third message is used to request that the user of the terminal Plane switching, or control plane switching, or control plane and user plane switching to different sites respectively.

115. The site according to any one of claims 111 to 114, characterized in that the user plane switching includes:

User plane switching of the terminal; or

DRB switching of the terminal; or

User plane bearer switching of the terminal; or

116. The site according to any one of claims 111 to 114, characterized in that the control plane switching includes:

Control plane switching of the terminal; or

SRB switching of the terminal; or

117. The site according to any one of claims 111 to 116, characterized in that: the first 1. Configuration information, including at least one of the following:

118. The site according to any one of claims 111 to 117, characterized in that: the information sending unit is also used to receive a fourth message from the terminal, and the fourth message is used to notify the terminal of completion configuration.

119. The site according to claim 118, characterized in that,

The information sending unit is also configured to send a fifth message to the first site. The fifth message is used to notify the first site that the terminal has completed the configuration, and/or, notify the first site and the Terminal communication.

120. The site according to any one of claims 111 to 119, characterized in that the receiving information unit is also used to receive an activation message sent by the first site, and the activation message sent by the first site is used to indicate The terminal directly communicates with the first site or instructs the terminal to send first access information to the first site, where the first access information is used to request or activate communication with the first site;

or

The information sending unit is also used to send an activation message to the terminal to instruct the terminal to directly communicate with the first site or to instruct the terminal to send first access information to the first site. The first access information is used to request or activate communication with the first site;

or

The information sending unit is also configured to send an activation message to the terminal and the first site, and notify the terminal to communicate with the first site;

or

The information sending unit is also configured to send the time-frequency resource information of the RRC connection reconfiguration complete message/switching complete message contained in the received first message from the terminal to the first station, and send it to the terminal.

121. The site according to any one of claims 111 to 120, characterized in that the first message further includes at least one of the following:

The base station identifier of the source user plane base station of the terminal, and the cell identifier of the source user plane base station of the terminal. Indicates: the identification of the source control plane base station of the terminal, the cell identification of the source control plane base station of the terminal, the identification of the target base station where the terminal performs handover, and the identification of the target cell where the terminal performs handover.

122. The site according to any one of claims 111 to 121, characterized in that the first message also includes:

123. The site according to any one of claims 111 to 122, characterized in that the configuration information of the first access information includes at least one of the following:

124. The site according to any one of claims 111 to 123, characterized in that: the information sending unit is also used to send a first instruction message to the third site, and the first instruction message is used to indicate The third station stops communication with the terminal.

125. The site according to any one of claims 111 to 124, characterized in that the site further includes:

Establish a channel unit, used to establish a data transmission channel with the first site;

or

The channel establishing unit is used to establish a data transmission channel with the first site, and the message sending unit is also used to send data of the terminal to the first site.

126. The site according to any one of claims 111 to 125, characterized in that: the information sending unit is also used to send a second instruction message to the third site, and the second instruction message is used to indicate The third site releases the resources reserved for the terminal, or the configuration information of the terminal, or the context information of the terminal.

127. The site according to any one of claims 111 to 126, characterized in that: the information sending unit is also used to send a third instruction message to the third site, and the third instruction message is used to indicate The third station continues to communicate with the terminal.

128. A system for accessing sites, characterized by including:

Terminal, first site, second site; Wherein, the terminal is configured to receive the first message sent by the second station, the first message includes first configuration information, and the first configuration information includes the configuration information of the scheduling request SR or the configuration information of the sounding reference signal SRS. Or configuration information for sending data; According to the first configuration information, send first access information to the first site to access the first site for communication, where the first access information is the SR or the The SRS or ACK or NACK or the data;

The first station is configured to generate a first message for the second station; send the first message to the second station, where the first message includes first configuration information, where the first configuration information includes a scheduling request SR The configuration information or the configuration information of the sounding reference signal SRS or the configuration information of sending data, the first configuration information is used by the terminal to send the first access information to the first station to access the first station, The first access information is the SR or the SRS or ACK or NACK or the data;

The second station is configured to receive a first message sent by the first station, where the first message includes first configuration information, and the first configuration information includes configuration information or transmission data of the scheduling request SR or the sounding reference signal SRS. configuration information; sending a second message to the terminal, where the second message includes the first configuration information, and the first configuration information is used by the terminal to send first access information to the first site to Access the first station for communication, and the first access information is the SR or the SRS or ACK or NACK or the data.