WO2018058832A1

WO2018058832A1 - Control method and device for accessing cell

Info

Publication number: WO2018058832A1
Application number: PCT/CN2016/112728
Authority: WO
Inventors: 朱亚军; 李明菊; 张云飞
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2016-09-30
Filing date: 2016-12-28
Publication date: 2018-04-05
Also published as: CN106507442A

Abstract

The present invention discloses a control method and device for accessing a cell. The method comprises: carrying a cell search signal on a corresponding beam and transmitting the same, wherein the cell search signal carries beam information of the beam; and carrying system information on the beam and transmitting the same, and configuring, on the beam, an interval between a first time/frequency position for transmitting the cell search signal and a second time/frequency position for transmitting the system information to be constant. The beam information is for a terminal to acquire the system information, and the system information is for the terminal to initiate cell access. The technical solution of the present invention effectively enables a terminal to timely and accurately access a cell, and more particularly timely and accurately access a cell operating at a high frequency band, enhancing service processing capabilities of the terminal.

Description

Cell access control method and device

The present application claims priority to Chinese Patent Application No. 201610873952.3, entitled "Cell Access Control Method and Apparatus" on September 30, 2016, the entire contents of which are incorporated herein by reference. in.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a cell access control method and a cell access control device.

Background technique

With the rapid development of mobile services, the current wireless communication technologies such as the fourth generation mobile communication technology featuring OFDM (Orthogonal Frequency Division Multiplexing) have been unable to meet the needs of new scenarios. Research on the fifth generation of mobile communication technology has been vigorously carried out in academia and industry. However, the research and standardization of next-generation wireless communication technologies needs to be continuously evolved over a long period of time to meet different scenarios. Therefore, in the initial stage of standardization, how to ensure that the current standardized technical solutions will not evolve. The design of technical solutions that may arise in the process is an obstacle that needs to be focused on, that is, the current standardization process needs to focus on forward compatibility.

The fifth generation of mobile communication technology needs to support ultra-high data transmission rates, massive number of connections and low data transmission delays to meet the needs of different scenarios. The current 5G (5th-Generation, 5th Generation Mobile Communication Technology) communication main scenarios include the following three types: eMBB (enhanced Mobile BroadBand), mMTC (massive Machine Type Communications) and URLLC (Ultra-Reliable and Low Latency Communications) business. The service types of the three scenarios are different, and the requirements are different. For example, the eMBB service is mainly for the service scenario that requires a higher data rate. The mMTC service is mainly for a large number of connected service scenarios, and the URLLC Service, mainly for delay scenarios and high reliability business scenarios.

For the important aspect of system design, the cell access process, in the traditional LTE (Long Term Evolution) system design, after a new terminal is turned on, it first searches for the carrier of the service carrier according to some rules. Frequency point, after searching for a synchronization channel on a certain carrier frequency point, initial synchronization is established; then, system information is acquired to obtain parameter information related to cell access, and the terminal further performs initial cell access according to the received parameter information. Process.

However, the traditional LTE system generally works at a lower frequency point, so the channel has better propagation characteristics, and the base station can send synchronization signals, system information, and the like to terminals within the coverage of the entire serving cell. However, considering that in the subsequent mobile communication systems, the resources in the low frequency band are relatively limited, it is necessary to use a higher frequency band for data interaction, and in the higher frequency band, due to the high frequency propagation characteristics, the signal is caused. The attenuation will be more serious and the coverage of the cell cannot be guaranteed.

Therefore, how to effectively enable the terminal to access the cell in time and accurately, in particular, can timely and accurately access the cell working in the high frequency band, thereby improving the service processing capability of the terminal, which becomes an urgent problem to be solved.

Summary of the invention

The present invention is based on at least one of the above technical problems, and proposes a new cell access scheme, by carrying a signal for cell search on a beam supported by a cell for terminal detection and acquisition, and then according to the detected use. The signal acquisition system message of the cell search performs cell access, which can effectively enable the terminal to access the cell in time and accurately, and in particular, can timely and accurately access the cell working in the high frequency band to perform normal data interaction, thereby Improve the business processing capabilities of the terminal.

In view of the above, according to the first aspect of the present invention, a method for controlling cell access is provided, which is used for a base station, including: carrying a signal for cell search on a corresponding beam for transmission, where the The signal searched by the cell carries the beam information of the beam; the system information is carried on the beam for transmission, and the first time-frequency position of the signal for cell search is transmitted on the beam and The interval between the second time-frequency locations for transmitting the system information is fixed, wherein the beam information is used by the terminal to acquire the system information, and the system information is used by the terminal to initiate cell access.

In the technical solution, the base station transmits the signal used for the cell search on the corresponding beam supported by the cell, that is, the signal used for cell search is transmitted through the beam of the different area of the corresponding cell, where the beam may be one or There are multiple, so as to ensure the coverage of the signal in the entire cell of the base station, so that the terminal can scan and acquire the signal for cell search in time and accurately in the frequency band supported by the terminal, and further, in order to make the terminal timely and accurate Accessing the cell, the base station carries the system information for the terminal to initiate cell access on the second time-frequency position with a fixed interval between the beam and the first time-frequency position of the signal for cell search. Then, after detecting the signal for the cell search, the terminal obtains the system information on the corresponding beam according to the beam information carried in the signal used for the cell search, and may initiate the cell access procedure.

The signal used for cell search includes a synchronization signal or other newly defined signals, and the beam information includes a beam ID (Identification).

Further, the base station may pre-define the first time-frequency position of the signal used for cell search on the beam and the second time-frequency position of the transmission system information; or may pass RRC (Radio Resource) on other cells/carriers. Control, radio resource control) signaling, MAC (Media Access Control), CE (Control Element), or physical layer signaling to the terminal, so that the terminal obtains the first time-frequency location and the Second time frequency position.

In the foregoing technical solution, preferably, the base station may further complete the cell access, and the control information and the data information to be used subsequently are transmitted on the corresponding beam, so as to implement subsequent normal data interaction.

In the above technical solution, preferably, the signal for cell search and the system information are transmitted only once on the beam within a limited time interval.

In this technical solution, in order to ensure periodic transmission of signal and system information for cell search, the signal and system information for cell search may be transmitted only once within a limited time interval, wherein the limitation The time interval may be a number of symbols, a number of subframes, a number of radio frames, and the like.

In any one of the above technical solutions, preferably, the different signals used for cell search are respectively carried on different beams for transmission; or the same signals for cell search are respectively carried in different beams. Transfer on.

In this technical solution, different signals for cell search may be respectively carried on each of the multiple beams supported by the cell of the base station to identify different beam information; or in multiple beams. Each beam carries the same signal for cell search to improve the reception reliability of the signal used for cell search, that is, by transmitting independent signals for cell search on the beam, the terminal can be supported in the cell. The signal for cell search is detected on any of the beams, so that cell access is performed in time and accurately, and the problem that the cell cannot be accessed due to insufficient coverage of the signal in the high frequency band is effectively solved.

In any of the above technical solutions, preferably, the signal sequence or time-frequency position of the different signals for cell search transmitted on the different beams is different.

In this technical solution, different signals for cell search transmitted on different beams can be specifically distinguished by different signal sequences or time-frequency positions of signals used for cell search.

In any of the foregoing technical solutions, the different system information is respectively carried on different beams for transmission; or the same system information is respectively carried on different beams for transmission.

In this technical solution, different system information may be separately carried on each of the multiple beams supported by the cell of the base station, which simplifies the subsequent cell access procedure; or may be performed on each of the multiple beams. Both of them carry the same system information to improve the receiving reliability of the system information. That is, by transmitting independent system information on the beam, the terminal can receive system information on any beam supported by the cell, thereby timely and accurately accessing the cell.

In any one of the foregoing technical solutions, preferably, receiving, by the terminal, a cell access request sent according to the system information, and feeding back, to the terminal, cell access response information that is responsive to the cell access request, for The terminal performs cell access according to the cell access response information.

In the technical solution, when receiving the cell access request initiated by the terminal according to the acquired system information, the cell access response information may be fed back to the terminal, so that the terminal accesses the cell according to the cell access response information, and implements subsequent Data interaction, wherein the cell access request is sent by the terminal on multiple beams it supports or on one of the supported multiple beams.

The cell access response information that the base station feeds back to the terminal includes C-RNTI (Cell Radio Network Temporary Identifier) information. Further, the cell access request sent by the terminal includes unique terminal identification information. And for the base station to distinguish different terminals using the same preamble according to the terminal identification information, and/or performing cell access at the same time-frequency location.

According to a second aspect of the present invention, a cell access control apparatus is provided for a base station, including: a first configuration module, carrying a signal for cell search on a corresponding beam for transmission, where The signal used for the cell search carries the beam information of the beam; the second configuration module carries the system information on the beam for transmission, and configures the signal for the cell search to be transmitted on the beam. The interval between the first time-frequency location and the second time-frequency location for transmitting the system information is fixed, wherein the beam information is used by the terminal to acquire the system information, and the system information is used for the The terminal initiates cell access.

Further, the base station may pre-define the first time-frequency position of the signal for cell search on the beam and the second time-frequency position of the transmission system information; or pass RRC (Radio Resource Control) on other cells/carriers. The RRC or the MAC or the physical layer signaling is notified to the terminal, so that the terminal acquires the first time-frequency position and the second time-frequency position in advance.

In the foregoing technical solution, preferably, the first configuration module is specifically configured to: configure, in a limited time interval, the signal for cell search to be sent only once on the beam; and the second The configuration module is specifically configured to: configure the system information to be sent only once on the beam during the limited time interval.

In any one of the foregoing technical solutions, the first configuration module is specifically configured to: transmit different signals for cell search to different beams for transmission; or use the same one for The signals searched by the cell are respectively carried on different beams for transmission.

In any one of the foregoing technical solutions, the second configuration module is specifically configured to: carry different system information separately on different beams for transmission; or carry the same system information separately. The beam is transmitted on the beam.

In any one of the above aspects, preferably, the control device for the cell access further includes: a receiving module, configured to receive a cell access request sent by the terminal according to the system information; and a sending module, configured to The terminal feedbacks the cell access response information of the cell access request received by the receiving module, so that the terminal performs cell access according to the cell access response information.

According to a third aspect of the present invention, a base station is provided, comprising: the control device for cell access according to the second aspect, wherein the base station has the cell access control device according to the second aspect All the beneficial effects will not be described here.

According to a fourth aspect of the present invention, a method for controlling cell access is provided for a terminal, comprising: detecting whether there is a signal for cell search, wherein the signal used for cell search is carried in a corresponding use Obtaining beam information for data reception carried in any of the signals used for cell search when detecting any signal used for cell search; determining, according to the beam information, a target beam for data reception; receiving system information on the target beam, and performing cell access based on the system information.

In this technical solution, by detecting whether there is a signal for cell search on a beam supported by the cell for data reception, and detecting any signal for cell search, determining by using the beam information contained therein The target beam received by the data, and then the system information is received on the target beam to perform cell access according to the system information. Thus, by transmitting the signal for the cell search on the corresponding beam supported by the cell, Signals for different regions of the corresponding cell transmit signals for cell search, thereby ensuring coverage of the signal in the entire cell of the base station, so that the terminal can scan and acquire for cell search in time and accurately in the frequency band supported by the terminal. signal of.

The signal used for cell search includes a synchronization signal or other defined signals, and the beam information includes a beam ID (Identification) (beam identification code); further, when any signal for cell search is detected, Any signal used for cell search also carries subframe or symbol level synchronization information, coarse frequency synchronization information, cell ID, duplex mode, CP (Cyclic Prefix) type, etc., for receiving subsequent System information or data interaction.

Further, the terminal may further receive, on the target beam, the completion of the cell access, and receive subsequent control information and data information that are needed to be used for subsequent normal data interaction.

In the above technical solution, preferably, the step of receiving system information on the target beam, and performing cell access according to the system information, specifically: according to any one of the signals used for cell search in the target The first time-frequency position transmitted on the beam determines a second time-frequency position of the system information transmitted on the target beam; and the system information is received according to the second time-frequency position, wherein the first time-frequency And the interval between the location and the second time-frequency location is fixed; sending a cell access request to the base station according to the system information; and receiving cell access response information that is sent back by the base station in response to the cell access request; The system information and the cell access response information perform cell access.

In this technical solution, when receiving system information on the target beam, first determining a second time when the system information can be received according to the first time-frequency position transmitted on the target beam according to any detected signal for cell search. a frequency position, and then receiving system information at a second time-frequency location with a fixed interval between the first time-frequency position, and transmitting a cell access request to the base station according to the system information, specifically, according to cell access in the system information The related information is used to initiate a cell access request, for example, transmitting a signal for initial access to a base station on a time-frequency resource for transmitting the signal for initial access in the system information, to complete the sending of the cell access request, and further When the base station responds to the cell access request to feed back the cell access response information, the cell access process is performed in combination with the system information, specifically, according to the attribute information of the cell in the system information, such as the cell bandwidth information, the beam information supported by the cell, and the wireless Resource time indication, etc., performing normal cell access and number in combination with cell access response information for subsequent data interaction Interaction process.

The cell access request sent by the terminal to the base station includes unique terminal identification information for the base station to use the same preamble according to the terminal identification information, and/or different cell access at the same time-frequency location. And the cell access response information that the base station feeds back to the terminal includes C-RNTI (Cell Radio Network Temporary Identifier) information.

In the foregoing technical solution, the terminal can obtain the first time-frequency in advance by receiving RRC (Radio Resource Control) signaling, MAC (Media Access Control) CE or physical layer signaling from other cells. Position and second time-frequency position.

Further, the terminal transmits a cell access request on one of the plurality of beams it supports or on one of the supported multiple beams.

In any of the above technical solutions, it is preferred to detect whether the signal for cell search exists on a plurality of beams.

In this technical solution, preferably, the terminal detects whether there are signals for cell search, that is, different beams corresponding to different areas of the cell, on multiple beams supported by the cell, so as to improve reliability of signal reception.

In any one of the foregoing technical solutions, preferably, the beam information for data reception is determined according to a signal characteristic of the signal for cell search transmitted on different beams; the signal feature includes a signal sequence or a transmission Time-frequency position.

In this technical solution, the beam information for data reception may be specifically determined by signal characteristics used for cell search, such as a signal sequence or a time-frequency position, thereby determining a target beam for receiving data.

According to a fifth aspect of the present invention, a cell access control apparatus is provided for a terminal, comprising: a detecting module, detecting whether there is a signal for cell search, wherein the signal for cell search is carried in Corresponding to the beam for data reception; the acquiring module, when the detecting module detects any signal used for cell search, acquiring a beam for data reception carried in any signal used for cell search a determining module, determining, according to the beam information acquired by the acquiring module, a target beam for data reception; and a processing module, receiving system information on the target beam determined by the determining module, and according to the system information Perform cell access.

The signal used for cell search includes a synchronization signal or other defined signals, and the beam information includes a beam ID (Identification) (beam identification code); further, when any signal for cell search is detected, Any signal used for cell search also carries subframe or symbol level synchronization information, coarse frequency synchronization information, cell ID, duplex mode, CP type, etc., for receiving subsequent system information or performing data interaction. .

In the above technical solution, preferably, the processing module specifically includes: a determining submodule, determining, according to the first time-frequency position transmitted by the signal for the cell search on the target beam, the system information is a second time-frequency position transmitted on the target beam; the first receiving sub-module receives the system information according to the second time-frequency position determined by the determining sub-module, wherein the first time-frequency position and The interval between the second time-frequency positions is fixed; the sending sub-module sends a cell access request to the base station according to the system information received by the first receiving sub-module; and the second receiving sub-module receives the base station Responsive to the cell access response information sent by the cell access request sent by the sending submodule; the access submodule, according to the system information and the second receiving submodule received by the first receiving submodule The received cell access response information performs cell access.

In any one of the foregoing technical solutions, the detecting module is specifically configured to: detect whether the signal for cell search exists on multiple beams.

In any one of the foregoing technical solutions, the detecting module is specifically configured to: determine the beam information used for data reception according to a signal characteristic of the signal used for cell search transmitted on different beams; Signal characteristics include the signal sequence or the time-frequency location of the transmission.

According to a sixth aspect of the present invention, a terminal is provided, comprising: the control device for cell access according to the fifth aspect, wherein the terminal has the cell access control device according to the fifth aspect All the beneficial effects will not be described here.

The above technical solution can effectively enable the terminal to access the cell in time and accurately, and in particular, can access the cell working in the high frequency band in time and accurately, thereby improving the service processing capability of the terminal.

DRAWINGS

1 is a flow chart showing a method of controlling cell access according to a first embodiment of the present invention;

2 is a schematic diagram showing signals for searching for cells transmitted on different beams according to an embodiment of the present invention;

FIG. 3 is a schematic block diagram showing a control apparatus for cell access according to a first embodiment of the present invention; FIG.

FIG. 4 is a schematic block diagram showing a control apparatus for cell access according to a second embodiment of the present invention; FIG.

Figure 5 is a schematic block diagram of a base station of a first embodiment of the present invention;

FIG. 6 is a flowchart showing a method of controlling cell access according to a second embodiment of the present invention; FIG.

FIG. 7 is a flowchart showing performing cell access according to a system message according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic block diagram showing a control apparatus for cell access according to a third embodiment of the present invention; FIG.

Figure 9 shows a schematic block diagram of the processing module shown in Figure 8;

Figure 10 shows a schematic block diagram of a terminal in accordance with a first embodiment of the present invention;

Figure 11 is a schematic block diagram of a base station of a second embodiment of the present invention;

Figure 12 shows a schematic block diagram of a terminal in accordance with a second embodiment of the present invention.

detailed description

The present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a full understanding of the invention, but the invention may be practiced otherwise than as described herein. Limitations of the embodiments.

FIG. 1 is a flow chart showing a method of controlling cell access according to a first embodiment of the present invention.

As shown in FIG. 1 , a method for controlling cell access according to a first embodiment of the present invention is used in a base station, and specifically includes the following process steps:

Step S10: The signal used for the cell search is carried on the corresponding beam for transmission, where the signal for the cell search carries the beam information of the beam.

Step S12: The system information is carried on the beam for transmission, and the first time-frequency position of the signal for cell search and the second time-frequency position for transmitting the system information are configured to be transmitted on the beam. The interval between the two is fixed, wherein the beam information is used by the terminal to acquire the system information, and the system information is used by the terminal to initiate cell access.

Further, the base station may pre-define the first time-frequency position of the signal for cell search on the beam and the second time-frequency position of the transmission system information; or pass the RRC (Radio Resource Control) of other cells. The signaling, the MAC (Media Access Control), or the physical layer signaling is notified to the terminal, so that the terminal acquires the first time-frequency location and the second time-frequency location in advance.

In the above embodiment, further, the signal for cell search and the system information are transmitted only once on the beam within a limited time interval.

In any of the above embodiments, further, different signals for cell search are respectively carried on different beams for transmission; or the same signal for cell search is separately carried in different beams. Transfer on.

In this technical solution, different signals for cell search may be respectively carried on each of a plurality of beams supported by a cell of the base station to identify different beam information. As shown in FIG. 2, different time-frequency positions of signals for cell search are transmitted as signal characteristics to distinguish different signals for cell search. The cell of the base station supports the transmission of 4 beams, and then 4 beams of signals for cell search can be transmitted on adjacent transmission units in the time domain, wherein the transmission unit is a basic transmission unit in time, such as a Sub-frames, multiple sub-frames or one symbol, etc. Further, signals for cell search on different beams can also be transmitted on the same transmission unit, occupying independent frequency resources; based on the same principle, different beams can also be used. The time-frequency locations of the signals transmitted for cell search are the same, but the signal sequences of the signals used for cell search on different beams are different.

It is also possible to carry the same signal for cell search on each of the plurality of beams to improve the reception reliability of the signal for cell search by transmitting an independent signal for cell search over the beam. The terminal can detect the signal used for the cell search on any beam supported by the cell, so that the cell access can be performed in time and accurately, and the problem that the cell cannot be accessed due to insufficient coverage of the signal in the high frequency band is effectively solved.

In any of the foregoing embodiments, the different system information is separately carried on different beams for transmission; or the same system information is separately carried on different beams for transmission.

That is, different beams may respectively carry different signals for cell search, and the system information for the bearers may be the same or different; and if different beams carry the same beam information, the system for the bearer Information can be the same or different.

In any of the above embodiments, the method for controlling cell access according to the present invention further includes the following process steps: receiving a cell access request sent by the terminal according to the system information; and feeding back to the terminal And responding to the cell access response information of the cell access request, so that the terminal performs cell access according to the cell access response information.

In the technical solution, when receiving the cell access request initiated by the terminal according to the acquired system information, the cell access response information may be fed back to the terminal, so that the terminal accesses the cell according to the cell access response information, and implements subsequent Data interaction, wherein the cell access request is sent by one of the plurality of beams transmitted by the terminal on the plurality of beams it supports or is actually supported.

Fig. 3 is a schematic block diagram showing a control apparatus for cell access of the first embodiment of the present invention.

As shown in FIG. 3, the control apparatus 300 for cell access according to an embodiment of the present invention is used for a base station, and includes: a first configuration module 302 and a second configuration module 304.

The first configuration module 302 carries the signal for the cell search on the corresponding beam for transmission, where the signal for the cell search carries the beam information of the beam; the second configuration Module 304 carries system information on the beam for transmission and is configured to transmit between the first time-frequency location of the signal for cell search on the beam and the second time-frequency location of the system information The interval is fixed, wherein the beam information is used by the terminal to acquire the system information, and the system information is used by the terminal to initiate cell access.

Further, the first configuration module 302 in the foregoing embodiment is specifically configured to: configure, in a limited time interval, the signal for cell search to be sent only once on the beam; and the second The configuration module 304 is specifically configured to: configure the system information to be sent only once on the beam during the limited time interval.

Further, the first configuration module 302 in the foregoing embodiment is further configured to: separately transmit different signals for cell search to different beams for transmission; or use the same one for the cell. The searched signals are carried on different beams for transmission.

In any of the above embodiments, preferably, the signal sequence or time-frequency position of the different signals for cell search transmitted on the different beams is different.

Further, the second configuration module 304 in the foregoing embodiment is further configured to: carry different system information separately on different beams for transmission; or carry the same system information separately in different Transmission on the beam.

Further, in any of the above implementations, the control device 300 for cell access further includes: a receiving module 306 and a sending module 308, as shown in FIG.

The receiving module 306 is configured to receive a cell access request sent by the terminal according to the system information, and the sending module 308 is configured to feed back, to the terminal, the cell that is received by the receiving module 306. Accessing the requested cell access response information, so that the terminal performs cell access according to the cell access response information.

Fig. 5 shows a schematic block diagram of a base station of a first embodiment of the present invention.

As shown in FIG. 5, the base station 500 according to the first embodiment of the present invention includes the control apparatus 300 for cell access according to any of the above embodiments, and therefore, the base station has any one of the above embodiments. All the beneficial effects of the control device 300 for cell access are not described herein.

FIG. 6 is a flowchart showing a method for controlling cell access according to a second embodiment of the present invention.

As shown in FIG. 6, the method for controlling cell access according to the second embodiment of the present invention is used for a terminal, and specifically includes the following process steps:

Step S60, detecting whether there is a signal for cell search, wherein the signal for cell search is carried on a corresponding beam for data reception.

Step S62: When any signal for cell search is detected, the beam information for data reception carried in any of the signals used for cell search is acquired.

Step S64, determining a target beam for data reception according to the beam information.

Step S66, receiving system information on the target beam, and performing cell access according to the system information.

Wherein, in a limited time interval, the signal and system information used for the cell search are only sent once in the target beam, and the limited time interval may be several symbols, several subframes, several radio frames, etc.; The signal and system information carried on the beam for cell search may be one of different signals for cell search and different system information carried on different beams supported by cells of the base station, or may be carried in the base station. The same cell information and the same system information are used on different beams supported by the cell.

Further, as shown in FIG. 7, the foregoing step S66 can be specifically implemented by the following process steps:

Step S660, determining, according to the first time-frequency position transmitted by the signal for the cell search on the target beam, a second time-frequency position of the system information transmitted on the target beam.

Step S662, receiving the system information according to the second time-frequency position, wherein an interval between the first time-frequency position and the second time-frequency position is fixed.

Step S664, sending a cell access request to the base station according to the system information.

Step S666: Receive cell access response information that is sent back by the base station in response to the cell access request.

Step S668, performing cell access according to the system information and the cell access response information.

Fig. 8 is a schematic block diagram showing a control apparatus for cell access of a third embodiment of the present invention.

As shown in FIG. 8, the control apparatus 800 for cell access according to the third embodiment of the present invention is used for a terminal, and includes: a detection module 802, an acquisition module 804, a determination module 806, and a processing module 808.

The detection module 802 is configured to detect whether there is a signal for cell search, where the signal for cell search is carried on a corresponding beam for data reception; the obtaining module 804 is shown as the detection module 802. When any signal for cell search is detected, the beam information for data reception carried in any of the signals used for cell search is obtained; the determining module 806 is configured to obtain the beam according to the acquiring module 804. The information determines a target beam for data reception; the illustrated processing module 808 receives system information on the target beam determined by the determination module 806 and performs cell access based on the system information.

Further, in the above embodiment, as shown in FIG. 9, the processing module 808 of the embodiment of the present invention specifically includes: a determining submodule 8080, a first receiving submodule 8082, a transmitting submodule 8084, and a second receiving submodule 8086. And access sub-module 8088.

The determining sub-module 8080 determines, according to the first time-frequency position transmitted by the signal for the cell search on the target beam, the second time-frequency position of the system information transmitted on the target beam. The first receiving sub-module 8082 receives the system information according to the second time-frequency position determined by the determining sub-module 8080, wherein the first time-frequency position and the second time-frequency position are between The interval is fixed; the sending submodule 8084 sends a cell access request to the base station according to the system information received by the first receiving submodule 8082; and the second receiving submodule 8086 receives the base station in response to the The cell access response information fed back by the cell access request sent by the submodule 8084; the access submodule 8088 is configured according to the system information and the second receiving submodule received by the first receiving submodule 8082 The cell access response information received by the 8086 performs cell access.

In any of the above embodiments, the detecting module 802 is specifically configured to detect whether the signal for cell search exists on multiple beams.

Figure 10 shows a schematic block diagram of a terminal in accordance with a first embodiment of the present invention.

As shown in FIG. 10, the terminal 1000 according to the first embodiment of the present invention includes the control device 800 for cell access according to any of the above embodiments, and therefore, the terminal 1000 has any of the above embodiments. All the beneficial effects of the control device 800 for cell access are not described herein.

The cell access procedure of the embodiment of the present invention is described below by taking a signal for cell search as a synchronization signal as an example.

(1) Terminal detection synchronization channel

After the terminal is powered on, it scans based on certain rules in its supported working frequency band, and performs synchronization channel detection at each frequency point. have to be aware of is. The synchronization signal carried on the synchronization channel is predefined, and the terminal has already learned the predefined synchronization signal before making the detection. The synchronization signal carries beam information, and the synchronization signal on each beam is transmitted only once in one radio frame and transmitted at a fixed time-frequency resource location. At the same time, the sync signals on all beams are transmitted once in one radio frame. After detecting the synchronization channel, the terminal can obtain the following information: service beam information carried on the synchronization signal; synchronization at the subframe level; coarse frequency synchronization; serving cell ID.

(2) The terminal detects the broadcast channel

Broadcast channels are transmitted on different beams; there is a fixed resource mapping relationship between the broadcast channel and the synchronization channel on each beam, that is, the time-frequency position of the synchronization channel on a certain beam can be used to obtain the information on the beam. The time-frequency position of the broadcast channel. The terminal learns the system information through the cell level identification information on the strongest received beam. It should be noted that system information is carried on each beam. The system information includes the following information: bandwidth of the serving cell; beam information supported by the serving cell; radio frame number; information related to terminal access, such as signal information for initial access, transmitting signal for initial access Time-frequency resources, etc.

(3) The terminal performs cell access

The terminal sends a signal for initial access according to the time-frequency resource in the system message. Note that the signal sent by the terminal for initial access carries unique terminal identification information, such as the high-level ID of the terminal, and the base station receives After the initial access signal to the terminal, the terminal responds to the initial access request of the terminal, and sends the C-RNTI information used by the terminal for subsequent data interaction; after receiving the C-RNTI information, the terminal performs a normal data interaction process.

In the present invention, a method for cell access is proposed, which can effectively enable the terminal to access the serving cell in time and accurately, especially the serving cell working at a high frequency point, so as to effectively solve the problem. In the high-frequency scenario, the problem of inaccessible cells caused by insufficient cell coverage.

Figure 11 is a schematic block diagram of a base station of a second embodiment of the present invention.

As shown in FIG. 11, a base station according to a second embodiment of the present invention includes a processor 1, an input device 2, an output device 3, and a memory 5. In some embodiments of the present invention, the processor 1, the input device 2, the output device 3, and the memory 5 may be connected by a bus 4 or the like, and the connection through the bus 4 is exemplified in FIG.

The memory 5 is used to store a set of program codes, and the processor 1 calls the program code stored in the memory 5 for performing the following operations:

Transmitting a signal for cell search on a corresponding beam, where the signal for cell search carries beam information of the beam;

Carrying system information on the beam for transmission, and configuring an interval between the first time-frequency position of transmitting the signal for cell search on the beam and the second time-frequency position transmitting the system information Fixed, wherein the beam information is used by the terminal to acquire the system information, and the system information is used by the terminal to initiate cell access.

As an optional implementation manner, the processor 1 calls the program code stored in the memory 5, and can also be used to perform the following operations:

The signal for cell search and the system information are transmitted only once on the beam during a limited time interval.

As an optional implementation manner, the processor 1 calls the program code stored in the memory 5, and is also used to perform the following operations:

Transmitting different signals for cell search on different beams for transmission;

Or transmitting the same signal used for cell search on different beams for transmission.

Carrying different system information separately on different beams for transmission;

Or the same system information is carried on different beams for transmission.

Receiving, by the input device 2, a cell access request sent by the terminal according to the system information;

The cell access response information responsive to the cell access request is fed back to the terminal by the output device 3, so that the terminal performs cell access according to the cell access response information.

As shown in Fig. 12, a terminal according to a second embodiment of the present invention includes a processor 1', an input device 2', an output device 3', and a memory 5'. In some embodiments of the present invention, the processor 1', the input device 2', the output device 3' and the memory 5' may be connected by a bus 4' or other means, as exemplified by the connection via the bus 4' in Fig. 12.

The memory 5' is for storing a set of program codes, and the processor 1' calls the program code stored in the memory 5' for performing the following operations:

Detecting, by the input device 2', whether there is a signal for cell search, wherein the signal for cell search is carried on a corresponding beam for data reception;

When any signal for cell search is detected, beam information for data reception carried in any of the signals for cell search is acquired by the input device 2';

Determining a target beam for data reception based on the beam information;

System information is received on the target beam by input device 2' and cell access is performed in accordance with the system information.

Determining, according to the first time-frequency position transmitted by the signal for the cell search on the target beam, a second time-frequency position of the system information transmitted on the target beam;

Receiving, by the input device 2', the system information according to the second time-frequency position, wherein an interval between the first time-frequency position and the second time-frequency position is fixed;

Transmitting, by the output device 3', a cell access request to the base station based on the system information;

Receiving, by the input device 2', cell access response information that is sent back by the base station in response to the cell access request;

Cell access is performed according to the system information and the cell access response information.

The presence or absence of the signal for cell search is detected on the plurality of beams by the input device 2'.

The steps in the method of the embodiment of the present invention may be sequentially adjusted, merged, and deleted according to actual needs.

The cell access control device, the base station, and the unit in the terminal in the embodiment of the present invention may be combined, divided, and deleted according to actual needs.

One of ordinary skill in the art can understand that all or part of the various methods of the above embodiments can be completed by a program to instruct related hardware, the program can be stored in a computer readable storage medium, and the storage medium includes read only Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read Only Memory (Erasable Programmable Read Only Memory) EPROM), One-Time Programmable Read-Only Memory (OTPROM), Electronically-Erasable Programmable Read-Only Memory (EEPROM), Read-Only Disc (Compact Disc) Read-Only Memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other medium readable by a computer that can be used to carry or store data.

The technical solution of the present invention is described in detail above with reference to the accompanying drawings. The signal for cell search is carried on the beam supported by the cell for terminal detection and acquisition, and then the cell connection is performed according to the detected signal acquisition system message for cell search. The ingress can effectively enable the terminal to access the cell in a timely and accurate manner. In particular, the terminal can access the cell working in the high frequency band in time to perform normal data interaction, thereby improving the service processing capability of the terminal.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A cell access control method is used for a base station, and the method includes:

Transmitting a signal for cell search on a corresponding beam, where the signal for cell search carries beam information of the beam;

Carrying system information on the beam for transmission, and configuring an interval between the first time-frequency position of transmitting the signal for cell search on the beam and the second time-frequency position transmitting the system information Fixed, wherein the beam information is used by the terminal to acquire the system information, and the system information is used by the terminal to initiate cell access.
The method of claim 1 wherein

The signal for cell search and the system information are transmitted only once on the beam during a limited time interval.
The method of claim 1 wherein

Transmitting different signals for cell search on different beams for transmission;

Or transmitting the same signal used for cell search on different beams for transmission.
The method according to claim 3, characterized in that the signal sequence or time-frequency position of the different signals for cell search transmitted on the different beams is different.
The method of claim 1 wherein

Carrying different system information separately on different beams for transmission;

Or the same system information is carried on different beams for transmission.
The method according to any one of claims 1 to 5, further comprising:

Receiving a cell access request sent by the terminal according to the system information;

And feeding back, to the terminal, cell access response information that is responsive to the cell access request, so that the terminal performs cell access according to the cell access response information.
A cell access control device is used for a base station, and the method includes:

a first configuration module, where the signal used for the cell search is carried on the corresponding beam, where the signal for the cell search carries the beam information of the beam;

a second configuration module, carrying system information on the beam for transmission, and configuring a first time-frequency position of transmitting the signal for cell search on the beam and a second time-frequency transmitting the system information The interval between the locations is fixed, wherein the beam information is used by the terminal to acquire the system information, and the system information is used by the terminal to initiate cell access.
The device of claim 7 wherein:

The first configuration module is specifically configured to: configure the signal for cell search to be sent only once on the beam within a limited time interval;

The second configuration module is specifically configured to: configure the system information to be sent only once on the beam during the limited time interval.
The device according to claim 8, wherein the first configuration module is specifically configured to:

The different signals for cell search are respectively carried on different beams for transmission; or the same signals for cell search are respectively carried on different beams for transmission.
The apparatus according to claim 9, wherein the signal sequence or time-frequency position of the different signals for cell search transmitted on the different beams is different.
The device according to claim 7, wherein the second configuration module is specifically configured to:

The different system information is respectively carried on different beams for transmission; or the same system information is respectively carried on different beams for transmission.
The device according to any one of claims 7 to 11, further comprising:

a receiving module, configured to receive a cell access request sent by the terminal according to the system information;

And a sending module, configured to feed back, to the terminal, cell access response information that is responsive to the cell access request received by the receiving module, to enable the terminal to perform cell access according to the cell access response information.
A method for controlling cell access, which is used in a terminal, and includes:

Detecting whether there is a signal for cell search, wherein the signal for cell search is carried on a corresponding beam for data reception;

Obtaining beam information for data reception carried in any of the signals used for cell search when detecting any signal used for cell search;

Determining a target beam for data reception based on the beam information;

System information is received on the target beam and cell access is performed based on the system information.
The method according to claim 13, wherein the step of receiving system information on the target beam and performing cell access according to the system information comprises:

Determining, according to the first time-frequency position transmitted by the signal for the cell search on the target beam, a second time-frequency position of the system information transmitted on the target beam;

Receiving the system information according to the second time-frequency position, wherein an interval between the first time-frequency position and the second time-frequency position is fixed;

Transmitting a cell access request to the base station according to the system information;

Receiving cell access response information that is sent back by the base station in response to the cell access request;

Cell access is performed according to the system information and the cell access response information.
Method according to claim 13 or 14, characterized in that

The presence or absence of the signal for cell search is detected on multiple beams.
The method of claim 15 wherein:

Determining the beam information for data reception according to signal characteristics of the signal for cell search transmitted on different beams;

The signal characteristics include a sequence of signals or a time-frequency location of the transmission.
A device for controlling cell access, which is used for a terminal, and includes:

a detecting module, detecting whether there is a signal for cell search, where the signal for cell search is carried on a corresponding beam for data reception;

Obtaining a module, when the detecting module detects any signal used for cell search, acquiring beam information for data reception carried in any signal used for cell search;

a determining module, determining, according to the beam information acquired by the acquiring module, a target beam for data reception;

The processing module receives system information on the target beam determined by the determining module, and performs cell access according to the system information.
The device according to claim 17, wherein the processing module specifically comprises:

Determining a sub-module, determining, according to the first time-frequency position transmitted by the signal for the cell search on the target beam, a second time-frequency position of the system information transmitted on the target beam;

The first receiving sub-module receives the system information according to the second time-frequency position determined by the determining sub-module, wherein an interval between the first time-frequency position and the second time-frequency position is fixed;

a sending submodule, sending a cell access request to the base station according to the system information received by the first receiving submodule;

a second receiving submodule, configured to receive cell access response information that is sent by the base station in response to the cell access request sent by the sending submodule;

The access sub-module performs cell access according to the system information received by the first receiving sub-module and the cell access response information received by the second receiving sub-module.
The apparatus according to claim 17 or 18, wherein the detecting module is specifically configured to detect whether the signal for cell search exists on the plurality of beams.
The device according to claim 19, wherein the detecting module is specifically configured to:

Determining the beam information for data reception according to signal characteristics of the signal for cell search transmitted on different beams;

The signal characteristics include a sequence of signals or a time-frequency location of the transmission.