CN107147482A - The control method, system and base station of deactivation are activated in carrier aggregation - Google Patents

The control method, system and base station of deactivation are activated in carrier aggregation Download PDF

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Publication number
CN107147482A
CN107147482A CN201610118979.1A CN201610118979A CN107147482A CN 107147482 A CN107147482 A CN 107147482A CN 201610118979 A CN201610118979 A CN 201610118979A CN 107147482 A CN107147482 A CN 107147482A
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China
Prior art keywords
base station
command
activation
deactivation
terminal
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CN201610118979.1A
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Chinese (zh)
Inventor
陈中明
张娟
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ZTE Corp
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ZTE Corp
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Priority to CN201610118979.1A priority Critical patent/CN107147482A/en
Priority to PCT/CN2017/071320 priority patent/WO2017148223A1/en
Publication of CN107147482A publication Critical patent/CN107147482A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses the control method, system and base station that deactivation is activated in a kind of carrier aggregation.Methods described includes：First base station is based on terminal traffic demand and sends activation/deactivation/deletion/traffic order to terminal, and sends activation/deactivation/deletion/traffic order to the second base station, so that the cell status in second base station is synchronous with the first base station.

Description

Method, system and base station for controlling activation and deactivation in carrier aggregation
Technical Field
The present invention relates to communication technologies, and in particular, to a method, a system, and a base station for controlling activation and deactivation in carrier aggregation.
Background
A protocol architecture of a User plane on a User Equipment (UE) side according to a related art in a Long Term Evolution (LTE) system is shown in fig. 1. From bottom to top, the protocol layer is divided into the following protocol layers: a Physical layer (PHY), a Media Access Control (MAC), a Radio Link Control (RLC), and a Packet Data Convergence layer (PDCP). The PHY layer mainly transmits information to the MAC layer or a higher layer through a transmission channel; the MAC layer mainly provides data transmission and is responsible for wireless resource allocation through a logical channel, and completes functions of Hybrid Automatic Repeat Request (HARQ), Scheduling (SCH), priority processing and Multiplexing and demultiplexing (MUX), Discontinuous Reception (DRX), controlling the UE to discontinuously monitor and receive corresponding physical channel signals and data, and the like; the RLC layer mainly provides segmentation and retransmission services for user and control data; the PDCP layer mainly completes the transfer of user data to the RRC or an upper layer of the user plane.
To provide higher data rates to mobile users, Carrier Aggregation (CA) technology is introduced. After entering the connected state, the UE may communicate with the source base station through multiple component carriers (e.g., CC1, CC2), and introduce a Primary Cell (Pcell) and a Secondary Cell (Scell). In the subsequent stage of carrier aggregation, due to the increase of the data volume, the number of scells may be increased, for example, to 4, the scenario may also be relaxed, for example, a problem that an uplink Radio Remote Head (RRH) and a repeater (repeater) are supported, and a Time Advance (TA) cannot be solved, so that a plurality of TAs may be introduced. For convenience of management, the serving cells using the same TA are classified into one TA group. At this time, the TA Group including the Pcell is referred to as a primary TA Group (pTAG), and the TA Group not including the Pcell is referred to as a secondary TA Group (smag).
In this phase, considering the burst characteristics of the traffic, although the UE may use up to 5 carriers of bandwidth at the highest rate, the actual traffic flow of the UE is very little or close to zero in the burst gap, which may result in higher power overhead if the UE continues to wait for data reception on multiple carriers. In order to prolong the working time of the UE, close the wireless transmitting and receiving equipment which is not required to be started and reduce the unnecessary battery consumption, a concept of activating and deactivating carriers is introduced into an LTE-A (LTE-Advanced) system. The UE performs data reception only on the activated carrier, such as monitoring a Physical Downlink Control Channel (PDCCH); for the carriers which are not used temporarily, the base station deactivates the carriers through explicit command notification or implicit rule, and on the deactivated carriers, the UE does not monitor the PDCCH Channel and does not receive data on a Physical Downlink Shared Channel (PDSCH), thereby achieving the purpose of saving power. Wherein the Pcell can never be deactivated by the base station, and the Scell can be flexibly activated and deactivated.
Due to the requirement of network deployment, a plurality of base stations may be deployed nearby, and the time delay between the base stations is very short, so that carrier aggregation of cells between the base stations is possible. However, since the cells of multiple base stations perform carrier aggregation, activation and deactivation of Scell is controlled by the Pcell home base station (denoted as the master base station), and the cell state in the Scell home base station (denoted as the slave base station) is not synchronized with the master base station, which is inconvenient for data scheduling of the terminal.
Disclosure of Invention
In order to solve the existing technical problem, embodiments of the present invention provide a method, a system, and a base station for controlling activation and deactivation in carrier aggregation, so as to implement control of activation/deactivation of an auxiliary cell, facilitate data scheduling for a terminal, and improve resource utilization and user experience.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a method for controlling activation and deactivation in carrier aggregation, which comprises the following steps:
the first base station sends an activation/deactivation/deletion/scheduling command to a terminal, and sends the activation/deactivation/deletion/scheduling command to a second base station, so that the cell state in the second base station is synchronous with the first base station.
In the above scheme, the sending, by the first base station, an activation/deactivation/deletion/scheduling command to the terminal and an activation/deactivation/deletion/scheduling command to the second base station includes:
the first base station sends an activation command to the terminal based on the terminal service requirement, and sends the activation command to the second base station; the activation command includes information of an activation cell;
the first base station sends a deactivation command to the terminal based on the service requirement of the terminal, and sends the deactivation command to the second base station; the deactivation command includes information to deactivate a cell.
In the above scheme, the sending, by the first base station, an activation/deactivation/deletion/scheduling command to the terminal and an activation/deactivation/deletion/scheduling command to the second base station includes:
the first base station sends an activation command to the terminal based on the terminal service requirement, and sends the activation command to the second base station; the activation command includes information of an activation cell;
the first base station sends a deleting command to the terminal based on the signal quality of the auxiliary cell and sends the deleting command to the second base station; the delete command includes information to delete a cell.
In the above scheme, the sending, by the first base station, an activation/deactivation/deletion/scheduling command to the terminal and an activation/deactivation/deletion/scheduling command to the second base station includes:
the first base station sends a scheduling command to the terminal based on the terminal service requirement, and sends the scheduling command to the second base station; the scheduling command includes information of a scheduling cell.
In the above scheme, the sending, by the first base station, an activation/deactivation/deletion/scheduling command to the terminal and an activation/deactivation/deletion/scheduling command to the second base station includes:
the first base station sends an activation/deactivation/deletion/scheduling command to a terminal and sends the activation/deactivation/deletion/scheduling command to a second base station;
or, the first base station sends an activation/deactivation/deletion/scheduling command to a terminal, and after receiving a confirmation message of the terminal, sends the activation/deactivation/deletion/scheduling command to a second base station;
or before the first base station sends the activation/deactivation/deletion/scheduling command to the terminal, the activation/deactivation/deletion/scheduling command is sent to the second base station.
The embodiment of the invention also provides a control method for activating and deactivating in carrier aggregation, which comprises the following steps:
the second base station receives the activation/deactivation/deletion/scheduling command, and determines the state of the secondary cell based on the activation/deactivation/deletion/scheduling command so as to synchronize the cell state in the second base station with the first base station.
In the foregoing solution, after the second base station receives the activation command, the method further includes: the second base station sends a scheduling command to the terminal so that the terminal starts a deactivation timer, and a deactivation process is executed when the deactivation timer is timed out; the scheduling command includes information of a scheduling cell.
The embodiment of the invention also provides a base station, which is a first base station; the base station includes: an identification unit and a first sending unit; wherein,
the identification unit is used for identifying the service requirement of the terminal and obtaining a first identification result;
the first sending unit is configured to send an activation/deactivation/deletion/scheduling command to the terminal based on the first identification result of the identification unit, and send the activation/deactivation/deletion/scheduling command to the second base station, so that the cell state in the second base station is synchronized with the first base station.
In the foregoing solution, the first sending unit is configured to send an activation command to the terminal and send the activation command to the second base station based on the first identification result of the identification unit; the activation command includes information of an activation cell; the terminal is also used for sending a deactivation command to the terminal based on the first identification result of the identification unit and sending the deactivation command to the second base station; the deactivation command includes information to deactivate a cell.
In the above scheme, the identifying unit is further configured to identify signal quality of the secondary cell, and obtain a second identification result;
the first sending unit is used for sending an activation command to the terminal based on the first identification result of the identification unit and sending the activation command to the second base station; the activation command includes information of an activation cell; the terminal is also used for sending a deleting command to the terminal based on the second identification result of the identification unit and sending the deleting command to the second base station; the delete command includes information to delete a cell.
In the foregoing solution, the first sending unit is configured to send a scheduling command to the terminal and send the scheduling command to the second base station based on the first identification result of the identification unit; the scheduling command includes information of a scheduling cell.
In the above scheme, the first sending unit is configured to send the activation/deactivation/deletion/scheduling command to the terminal, and send the activation/deactivation/deletion/scheduling command to the second base station; or sending an activation/deactivation/deletion/scheduling command to the terminal, and sending the activation/deactivation/deletion/scheduling command to the second base station after receiving the confirmation message of the terminal; or, before sending the activation/deactivation/deletion/scheduling command to the terminal, sending the activation/deactivation/deletion/scheduling command to the second base station.
The embodiment of the invention also provides a base station, which is a second base station; the base station includes: a receiving unit and a determining unit; wherein,
the receiving unit is used for receiving an activation/deactivation/deletion/scheduling command;
the determining unit is configured to determine the state of the secondary cell based on the activation/deactivation/deletion/scheduling command received by the receiving unit, so as to synchronize the cell state in the second base station with the first base station.
In the above solution, the base station further includes a second sending unit, configured to send a scheduling command to the terminal after the receiving unit receives the activation command, so that the terminal starts a deactivation timer, and executes a deactivation process when the deactivation timer expires; the scheduling command includes information of a scheduling cell.
The embodiment of the invention also provides a control system for activating and deactivating in carrier aggregation, which comprises: a first base station and a second base station; wherein,
the first base station is used for sending an activation/deactivation/deletion/scheduling command to the terminal and sending the activation/deactivation/deletion/scheduling command to the second base station;
the second base station is configured to receive an activation/deactivation/deletion/scheduling command sent by the first base station, and determine a state of the secondary cell based on the activation/deactivation/deletion/scheduling command, so that a cell state in the second base station is synchronized with the first base station.
In the above scheme, the first base station is configured to send an activation command to the terminal based on a terminal service requirement, and send the activation command to the second base station; the activation command includes information of an activation cell; the terminal is also used for sending a deactivation command to the terminal based on the service requirement of the terminal and sending the deactivation command to the second base station; the deactivation command includes information to deactivate a cell.
In the above scheme, the first base station is configured to send an activation command to the terminal based on a terminal service requirement, and send the activation command to the second base station; the activation command includes information of an activation cell; sending a deleting command to the terminal based on the signal quality of the auxiliary cell, and sending the deleting command to the second base station; the delete command includes information to delete a cell.
In the above scheme, the first base station is configured to send an activation/deactivation/deletion/scheduling command to the terminal, and send an activation/deactivation/deletion/scheduling command to the second base station; or, the base station is configured to send an activation/deactivation/deletion/scheduling command to the terminal, and send the activation/deactivation/deletion/scheduling command to the second base station after receiving the confirmation message of the terminal; or, before sending the activation/deactivation/deletion/scheduling command to the terminal, sending the activation/deactivation/deletion/scheduling command to the second base station.
In the above scheme, the second base station is configured to send a scheduling command to the terminal after receiving the activation command sent by the first base station, so that the terminal starts a deactivation timer, and executes a deactivation process when the deactivation timer expires; the scheduling command includes information of a scheduling cell.
In the method, the system, and the base station for controlling activation and deactivation in carrier aggregation according to embodiments of the present invention, on one hand, a first base station sends an activation/deactivation/deletion/scheduling command to a terminal based on a terminal service requirement, and sends an activation/deactivation/deletion/scheduling command to a second base station, so as to synchronize a cell state in the second base station with the first base station. On the other hand, the second base station receives an activation/deactivation/deletion/scheduling command, and determines the state of the secondary cell based on the activation/deactivation/deletion/scheduling command so as to synchronize the cell state in the second base station with the first base station. Therefore, by adopting the technical scheme of the embodiment of the invention, the first base station and the second base station can instantly know the activation/deactivation state of the auxiliary cell to which the first base station and the second base station belong, the activation/deactivation control of the auxiliary cell is realized, the data scheduling of the terminal is facilitated, and the resource utilization rate and the user experience are improved.
Drawings
FIG. 1 is a diagram of a prior art user plane protocol architecture;
fig. 2 is a flowchart illustrating a control method for activation and deactivation in carrier aggregation according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating a control method for activation and deactivation in carrier aggregation according to a second embodiment of the present invention;
fig. 4 is a first schematic diagram of activation and deactivation in carrier aggregation according to an embodiment of the present invention;
fig. 5 is a second schematic diagram of activation and deactivation in carrier aggregation according to an embodiment of the present invention;
fig. 6 is a third schematic diagram of activation and deactivation in carrier aggregation according to an embodiment of the present invention;
fig. 7 is a fourth schematic diagram illustrating activation and deactivation in carrier aggregation according to an embodiment of the present invention;
FIG. 8 is a user plane protocol architecture of an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a main base station according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a slave base station according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example one
The embodiment of the invention provides a method for controlling activation and deactivation in carrier aggregation. Fig. 2 is a flowchart illustrating a control method for activation and deactivation in carrier aggregation according to a first embodiment of the present invention; the control method for activation and deactivation in carrier aggregation of this embodiment is applied to a first base station; as shown in fig. 2, the method includes:
step 201: the first base station sends an activation/deactivation/deletion/scheduling command to the terminal.
Step 202: the first base station sends an activation/deactivation/deletion/scheduling command to a second base station so as to synchronize the cell state in the second base station with the first base station.
In this embodiment, the first base station may specifically be a primary cell (Pcell) home base station, which may be denoted as a primary base station (P-eNB); the second base station may specifically be a secondary cell (Scell) home base station, which may be recorded as a secondary base station (S-eNB), or vice versa, that is, the first base station is an S-eNB, and the second base station is a P-eNB, which is not specifically limited in this embodiment. In this embodiment, the first base station may send an activation/deactivation/deletion/scheduling command based on a terminal service requirement. For example, the first base station may send an activation command when determining that the traffic volume of the terminal increases according to the measurement report; when it is determined that the traffic of the terminal is reduced, a deactivation command may be transmitted. Wherein the activation/deactivation command is used to activate/deactivate a secondary cell. Of course, the first base station may also determine the signal quality of the secondary cell through the measurement report, and determine that the signal quality of the secondary cell is reduced, for example, when a parameter representing the signal quality is lower than a preset threshold, the first base station may send a deactivation command, or send a deletion command.
That is, as an embodiment, the sending, by the first base station, an activation/deactivation command to the terminal and an activation/deactivation/deletion/scheduling command to the second base station includes:
the first base station sends an activation command to the terminal based on the terminal service requirement, and sends the activation command to the second base station; the activation command includes information of an activation cell;
the first base station sends a deactivation command to the terminal based on the service requirement of the terminal, and sends the deactivation command to the second base station; the deactivation command includes information to deactivate a cell.
Specifically, the first base station sends an activation command to the terminal and sends an activation command to the second base station at the same time; as another implementation, the first base station sends an activation command to the terminal, and after receiving the acknowledgement feedback message of the terminal, sends the activation command to the second base station. As a third implementation manner, before the first base station sends an activation command to the terminal, the first base station sends the activation command to the second base station; the advance time may be controlled by the first base station, or the first base station may be pre-configured with a default value characterizing the advance time before the first base station decides to send the activation command to the terminal to send the activation command to the second base station. The activation command may only include information of an activated cell, and may also include a transmission time of the activation command; the information of the activated cell and the sending time of the activation command can be identified by a frame number and/or a subframe number, so that the second base station can deduce that the terminal has received the activation command according to the activation command, and can determine whether the auxiliary cell to which the second base station belongs is in an activated state or a deactivated state. Or, the first base station may further send a notification message to the second base station, where the notification message is used to notify the second base station that the terminal has currently received the activation command, so that the second base station may know that the terminal has currently received the activation command without inference.
In the same way, when the first base station sends a deactivation command to the terminal, the first base station sends the deactivation command to the second base station; as another implementation, the first base station sends a deactivation command to the terminal, and sends the deactivation command to the second base station after receiving the acknowledgement feedback message of the terminal. As a third implementation manner, before the first base station sends the deactivation command to the terminal, the first base station sends the deactivation command to the second base station. The deactivation command may only include information of the deactivated cell, and may further include a transmission time of the deactivation command; the information of the deactivated cell and the sending time of the deactivation command can be identified by a frame number and/or a subframe number, so that the second base station can deduce that the terminal has received the deactivation command according to the deactivation command, and can determine whether the auxiliary cell to which the second base station belongs is in an activated state or a deactivated state. Or, the first base station may further send a notification message to the second base station, where the notification message is used to notify the second base station that the terminal has currently received the deactivation command, so that the second base station may know that the terminal has currently received the deactivation command without inference.
Further, as an implementation manner, when the terminal receives a deactivation command sent by the first base station, sending an acknowledgement feedback message to the first base station; that is, after receiving the acknowledgement feedback message representing the deactivation command sent by the terminal, the first base station sends a notification message to the second base station to notify the second base station that the current terminal has received the deactivation command, so that the second base station can determine whether the secondary cell to which the second base station belongs is in an activated state or a deactivated state.
As another embodiment, the sending, by the first base station, an activation/deactivation command to the terminal and an activation/deactivation/deletion/scheduling command to the second base station includes:
the first base station sends an activation command to the terminal based on the terminal service requirement, and sends the activation command to the second base station; the activation command includes information of an activation cell;
the first base station sends a deleting command to the terminal based on the signal quality of the auxiliary cell and sends the deleting command to the second base station; the delete command includes information to delete a cell.
Specifically, the first base station sends an activation command to the terminal and sends an activation command to the second base station at the same time; as another implementation, the first base station sends an activation command to the terminal, and after receiving the acknowledgement feedback message of the terminal, sends the activation command to the second base station. As a third implementation manner, before the first base station sends an activation command to the terminal, the first base station sends the activation command to the second base station; the advance time may be controlled by the first base station, or the first base station may be pre-configured with a default value characterizing the advance time before the first base station decides to send the activation command to the terminal to send the activation command to the second base station. The activation command may only include information of an activated cell, and may also include a transmission time of the activation command; the information of the activated cell and the sending time of the activation command can be identified by a frame number and/or a subframe number, so that the second base station can determine or deduce that the terminal has received the activation command according to the activation command, and can determine whether the auxiliary cell to which the second base station belongs is in an activated state or a deactivated state. Or, the first base station may further send a notification message to the second base station, where the notification message is used to notify the second base station that the terminal has currently received the activation command, so that the second base station may know that the terminal has currently received the activation command without inference.
The same as the above description, when the first base station sends a deletion command to the terminal, the first base station sends the deletion command to the second base station; as another implementation, the first base station sends a deletion command to the terminal, and after receiving the acknowledgement feedback message of the terminal, sends the deletion command to the second base station. As a third embodiment, before the first base station sends the delete command to the terminal, the first base station sends the delete command to the second base station. The delete command may only include information of the delete cell, and may also include a transmission time of the delete command; the information of the deletion cell and the sending time of the deletion command can be identified by a frame number and/or a subframe number, so that the second base station can determine or deduce that the terminal has received the deletion command according to the deletion command, and the auxiliary cell to which the second base station belongs can be determined to be in an activated state or a deleted state. And the deleting command is used for deleting the information of the secondary cell so that the information cannot be activated.
By adopting the technical scheme of the embodiment of the invention, the first base station and the second base station can instantly know the activation/deactivation state of the auxiliary cell to which the first base station and the second base station belong, so that the activation/deactivation control of the auxiliary cell is realized, the data scheduling of the terminal is facilitated, and the resource utilization rate and the user experience are improved.
Example two
The embodiment of the invention also provides a control method for activating and deactivating in carrier aggregation. Fig. 3 is a flowchart illustrating a control method for activation and deactivation in carrier aggregation according to a second embodiment of the present invention; the control method for activation and deactivation in carrier aggregation of this embodiment is applied to a second base station; as shown in fig. 3, the method includes:
step 301: the second base station receives the activation/deactivation/deletion/scheduling command.
Step 302: and the second base station determines the state of the secondary cell based on the activation/deactivation/deletion/scheduling command.
In this embodiment, the second base station receives an activation/deactivation/deletion/scheduling command sent by the first base station; the activation/deactivation/deletion/scheduling command may only include information of an activated/deactivated cell, and may also include a transmission time of the activation/deactivation/deletion/scheduling command; the information of the activated/deactivated cell and the sending time of the activation/deactivation command can be identified by a frame number and/or a subframe number, so that the second base station can deduce that the terminal has received the activation/deactivation/deletion/scheduling command according to the activation/deactivation/deletion/scheduling command, and can determine whether the auxiliary cell to which the second base station belongs is in an activated state or a deactivated state.
As an embodiment, after the second base station receives the activation command, the method further includes: the second base station sends a scheduling command to the terminal so that the terminal starts a deactivation timer, and a deactivation process is executed when the deactivation timer is timed out; the scheduling command includes information of a scheduling cell.
The embodiment is applied to the secondary cell with the self-scheduling function, that is, the second base station has the scheduling function. In this application scenario, when the second base station receives the activation command, that is, when the current secondary cell is in the activated state, the second base station may send a scheduling command to the terminal, and the terminal actively performs a deactivation process. And when the terminal receives the activation command, the terminal starts a deactivation timer, and in the time range of the deactivation timer, the terminal activates the secondary cell to enable the secondary cell to be in an activation state. Further, when the terminal receives the scheduling command, the deactivation timer is restarted, and the secondary cell is still in an activated state within the time range of the activation timer. And only when the deactivation timer is over, the terminal executes the deactivation process of the secondary cell to enable the secondary cell to be in a deactivation state.
Further, when the second base station sends the scheduling command to the terminal, the method further includes: and the second base station sends a notification message representing the scheduling command to the first base station. The notification message may only include information of a scheduling cell, and may further include a transmission time of the scheduling command; the information of the scheduling cell and the transmission time of the scheduling command may be identified by a frame number and/or a subframe number. After receiving the notification message, the first base station may infer, according to the time when the notification message is received or the time when the scheduling command is sent, the time when the terminal receives the scheduling command; so that the first base station can determine whether the state of the secondary cell within the control range is an activated state or a deactivated state. Or, the second base station may further send a notification message to the first base station, where the notification message is used to notify the first base station that the terminal has currently received the scheduling command, so that the first base station may know that the terminal has currently received the scheduling command without inference.
By adopting the technical scheme of the embodiment of the invention, the first base station and the second base station can instantly know the activation/deactivation state of the auxiliary cell to which the first base station and the second base station belong, so that the activation/deactivation control of the auxiliary cell is realized, the data scheduling of the terminal is facilitated, and the resource utilization rate and the user experience are improved.
The following describes in detail a control method for activation and deactivation in carrier aggregation according to an embodiment of the present invention with reference to a specific application scenario.
In the following application scenario, a base station 1 serves as a first base station (P-eNB), and includes a cell, denoted as cell 1; the base station 2, as a second base station (S-eNB), includes two cells, denoted as cell 3 and cell 4. Wherein, the terminal establishes connection with the cell 1, and the cell 1 becomes the main cell. Due to the increase of the traffic, the base station 1 adds the cell 3 to the terminal according to the measurement report, the cell 3 becomes a secondary cell, and the cell 1 and the cell 3 perform cross-base station carrier aggregation. The base station 1 configures configuration of activation and deactivation of the secondary cell for the terminal, including activating and deactivating a timer (sCellDeactivationTimer) and the like.
Scene one
Fig. 4 is a first schematic diagram of activation and deactivation in carrier aggregation according to an embodiment of the present invention; referring to fig. 4, the base station 1 determines that the service requirement of the terminal increases according to the measurement report, determines to activate the cell 3, sends a command for activating the cell 3 to the terminal, and the terminal receives the activation command for the cell 3 at time T1 to start executing the activation operation. And, the base station 1 sends the command to activate the cell 3 to the terminal, and at the same time (or the base station 1 receives an activation acknowledgement message (ACK) fed back by the terminal and then notifies the base station 2, or the base station 1 notifies the base station 2 before deciding to activate the cell 3 and send the activation command to the terminal, and the advanced time can be controlled by the base station 1, or a default value is designated), the base station 1 sends the activation command to the base station 2. The command for activating the cell 3 (and the activation command) may only include information of the activated cell 3, and may also include a transmission time of the command, where the information of the activated cell 3 and the transmission time of the command may be identified by a frame number and a subframe number. After receiving the activation command, the base station 2 infers that the terminal receives the activation command of the cell 3 at time T1 according to the time when the base station 1 receives the activation command itself or the time when the base station 1 sends the activation command included in the activation command. Of course, the base station 1 may also notify the base station 2 of the information that the terminal received the activation command at the time T1, and after receiving the notification message, the base station 2 may learn that the terminal received the activation command of the cell 3 at the time T1 without inference.
Due to the decrease of the traffic, the base station 1 decides to deactivate the cell 3, the base station 1 sends a command to deactivate the cell 3 to the terminal, and the terminal receives the deactivation command of the cell 3 at time T2 and starts to perform the deactivation operation. The base station 1 sends the command for deactivating the cell 3 to the terminal, and simultaneously (or the base station 1 informs the base station 2 after receiving the ACK for deactivating the MAC CE fed back by the terminal, or the base station 1 informs the base station 2 before deciding to deactivate the cell 3 and send the deactivation command to the terminal, the advance time can be controlled by the base station 1, or a default value is designated), and sends the deactivation command to the base station 2. The command for deactivating the cell 3 (and the deactivation command) may only include information for deactivating the cell 3, and may also include a transmission time of the command, where the transmission time of the command for deactivating the cell 3 may be identified by a frame number and a subframe number. After receiving the deactivation command, the base station 2 deduces that the terminal receives the deactivation command of the cell 3 at time T2 according to the time when the base station receives the deactivation command of the base station 1, or the time when the base station 1 sends the deactivation command included in the deactivation command. Of course, the base station 1 may also notify the base station 2 of the information that the terminal receives the deactivation command at the time T2, and after receiving the notification message, the base station 2 may learn that the terminal receives the deactivation command of the cell 3 at the time T2 without inference.
Scene two
Fig. 5 is a second schematic diagram of activation and deactivation in carrier aggregation according to an embodiment of the present invention; referring to fig. 5, the base station 1 determines that the service requirement of the terminal increases according to the measurement report, determines to activate the cell 3, sends a command for activating the cell 3 to the terminal, and the terminal receives the activation command for the cell 3 at time T1 to start executing the activation operation. And, the base station 1 sends the command to activate the cell 3 to the terminal, and at the same time (or the base station 1 receives an activation acknowledgement message (ACK) fed back by the terminal and then notifies the base station 2, or the base station 1 notifies the base station 2 before deciding to activate the cell 3 and send the activation command to the terminal, and the advanced time can be controlled by the base station 1, or a default value is designated), the base station 1 sends the activation command to the base station 2. The command for activating the cell 3 (and the activation command) may only include information of the activated cell 3, and may also include a transmission time of the command, where the information of the activated cell 3 and the transmission time of the command may be identified by a frame number and a subframe number. After receiving the activation command, the base station 2 infers that the terminal receives the activation command of the cell 3 at time T1 according to the time when the base station 1 receives the activation command itself or the time when the base station 1 sends the activation command included in the activation command. Of course, the base station 1 may also notify the base station 2 of the information that the terminal received the activation command at the time T1, and after receiving the notification message, the base station 2 may learn that the terminal received the activation command of the cell 3 at the time T1 without inference.
Based on the measurement report, the base station 1 determines that the signal quality of the cell 3 is poor, the base station 1 determines to delete the cell 3, transmits a command to delete the cell 3 to the terminal, and the terminal receives the delete command for the cell 3 at time T2 and starts to perform the delete operation. The base station 1 sends the command for deleting the cell 3 to the terminal, and simultaneously (or the base station 1 notifies the base station 2 after receiving the response message of the command for deleting the cell fed back by the terminal, or the base station 1 notifies the base station 2 before deciding to delete the cell 3 and sending the deleting command to the terminal, the advanced time can be controlled by the base station 1, or a default value is designated), and sends the deleting command to the base station 2. The command to delete cell 3 (and the delete command) may only include information to delete cell 3, and may also include a transmission time of the command, where the transmission time of the command to delete cell 3 information may be identified by a frame number and a subframe number. After receiving the delete command, the base station 2 infers that the terminal received the delete command for the cell 3 at time T2, based on the time when it received the delete command from the base station 1 or the time when the base station 1 included in the delete command transmits the delete command. Of course, the base station 1 may also notify the base station 2 of the information that the terminal received the delete command at time T2, and after receiving the notification message, the base station 2 may learn that the terminal received the delete command of the cell 3 at time T2 without inference.
Before this embodiment, the base station 1 may also determine whether to activate or deactivate the cell on the base station 2 according to the auxiliary information provided by the base station 2, such as no data transmission currently or a buffer (buffer) is empty. That is, the base station 2 notifies the base station 1, the terminal has no data to send on the base station 2, or the data buffer is empty, and the base station 1 determines to deactivate the cell 3 after receiving the data.
Scene three
Fig. 6 is a third schematic diagram of activation and deactivation in carrier aggregation according to an embodiment of the present invention; as shown in connection with fig. 6, cell 3 is a self-scheduling cell, i.e. the base station 2 is able to send scheduling commands to the terminals. The base station 1 determines that the demand of the terminal service increases according to the measurement report, decides to activate the cell 3, sends a command for activating the cell 3 to the terminal, and the terminal receives the activation command for the cell 3 at time T1, starts to execute the activation operation, and starts a deactivation timer. And, the base station 1 sends the command to activate the cell 3 to the terminal, and at the same time (or the base station 1 receives an activation acknowledgement message (ACK) fed back by the terminal and then notifies the base station 2, or the base station 1 notifies the base station 2 before deciding to activate the cell 3 and send the activation command to the terminal, and the advanced time can be controlled by the base station 1, or a default value is designated), the base station 1 sends the activation command to the base station 2. The command for activating the cell 3 (and the activation command) may only include information of the activated cell 3, and may also include a transmission time of the command, where the information of the activated cell 3 and the transmission time of the command may be identified by a frame number and a subframe number. After receiving the activation command, the base station 2 infers that the terminal receives the activation command of the cell 3 at time T1 according to the time when the base station 1 receives the activation command itself or the time when the base station 1 sends the activation command included in the activation command. Of course, the base station 1 may also notify the base station 2 of the information that the terminal received the activation command at the time T1, and after receiving the notification message, the base station 2 may learn that the terminal received the activation command of the cell 3 at the time T1 without inference.
Further, at time T2, the terminal receives the scheduling command of cell 3 sent by base station 2, and restarts the deactivation timer. The base station 2 may send a notification message to the base station 1 when sending the scheduling command to the terminal (or the base station 1 notifies the base station 2 after receiving ACK of the scheduling command fed back by the terminal, or the base station 1 notifies the base station 2 before deciding to schedule the terminal on the cell 3 and send the scheduling command to the terminal, where the advanced time may be controlled by the base station 1 or a default value may be specified), where the notification message is used to notify the base station 1 that the base station 2 itself schedules the cell 3 to the terminal at time T2. The notification message may only include the information of the scheduling cell 3, and may also include the transmission time of the scheduling command, where the information of the scheduling cell 3 and the transmission time of the scheduling command may be identified by a frame number and a subframe number. After receiving the notification message, the base station 1 infers that the terminal receives the scheduling command of the cell 3 at time T2, based on the time when the base station 1 itself receives the notification message of the base station 2 or the time when the base station 2 transmits the scheduling command included in the notification message. Of course, the base station 2 may also notify the base station 1 of the information that the terminal received the scheduling command at time T2, and after receiving the notification message, the base station 1 may learn that the terminal received the scheduling command of the cell 3 at time T2 without inference.
Further, at time T3, the terminal receives the scheduling command of cell 3 sent by base station 2 again, and restarts the deactivation timer.
Further, at time T4, the deactivation timer of cell 3 expires, and the terminal starts to perform the deactivation procedure of cell 3.
In this embodiment, as another embodiment, after the base station 2 sends the scheduling command of the cell 3 to the terminal, the base station 1 is not notified, and only after time T3, that is, after the deactivation timer expires, the base station 1 calculates the time when the cell 3 is in the deactivated state from the time of the deactivation timer.
In this embodiment, the cell 3 (i.e., the base station 2) maintains a scheduling command and a deactivation timer, and after the deactivation timer expires, the base station 2 notifies the base station 1, which indicates that the cell 3 is in a deactivated state.
Scene four
Fig. 7 is a fourth schematic diagram illustrating activation and deactivation in carrier aggregation according to an embodiment of the present invention; as shown in fig. 7, cell 3 is a cross-carrier scheduled cell, and is scheduled by cell 1, i.e. cell 3 can be controlled by the scheduling command of base station 1. When the base station 1 determines that the demand of the terminal service increases according to the measurement report, it decides to activate the cell 3, sends a command for activating the cell 3 to the terminal, and the terminal receives the activation command for the cell 3 at time T1, starts to execute the activation operation, and starts a deactivation timer. As shown in fig. 7. Since it is the base station 1 that directly controls the scheduling of the cell 3, the base station 2 does not need to obtain information of activation/deactivation of the cell 3.
Further, at time T2, the terminal receives a scheduling command from the base station 1 to the cell 3, and restarts the deactivation timer.
Further, at time T3, the terminal receives the scheduling command of cell 1 to cell 3 sent by base station 1 again, and restarts the deactivation timer.
Further, at time T4, the deactivation timer of cell 3 expires, and the terminal starts to perform the deactivation procedure of cell 3.
FIG. 8 is a user plane protocol architecture of an embodiment of the present invention; as shown in fig. 8, in the method for activating and deactivating in carrier aggregation according to the embodiment of the present invention, a data radio bearer is divided between at least two base stations, that is, data is sent through at least two base stations; the at least two base stations comprise a master base station (P-eNB) and at least one slave base station (S-eNB); the master base station comprises a UE carrier aggregated primary cell (PCell) and at least one UE carrier aggregated secondary cell (SCell); the slave base station includes at least one secondary cell (SCell) for UE carrier aggregation. As shown in fig. 8, the slave base station (S-eNB) includes a MAC layer and a PHY layer, i.e., the master base station and the slave base station each include all functions of the MAC layer, such as a data packet function. The master base station transmits an activation/deactivation command to the slave base station based on a MAC layer and an Xn interface. The architecture is one of the architectures for solving the above problems, and does not exclude other protocol architectures, and the control method for activation and deactivation in carrier aggregation provided in the embodiment of the present invention is not limited to only adopt the above protocol architecture.
EXAMPLE III
The embodiment of the invention also provides a base station, which is a first base station. Fig. 9 is a schematic structural diagram of a first base station according to an embodiment of the present invention; as shown in fig. 9, the first base station includes: a recognition unit 51 and a first transmission unit 52; wherein,
the identifying unit 51 is configured to identify a service requirement of the terminal, and obtain a first identification result;
the first sending unit 52 is configured to send an activation/deactivation/deletion/scheduling command to the terminal based on the first identification result of the identifying unit 51, and send an activation/deactivation/deletion/scheduling command to the second base station, so as to synchronize the cell state in the second base station with the first base station.
In this embodiment, the first sending unit 52 may send an activation/deactivation command based on a terminal service requirement. For example, when the identification unit 51 determines that the terminal traffic volume increases according to the measurement report, the first sending unit 52 may send an activation command; when the recognition unit 51 determines that the traffic of the terminal decreases, the first transmission unit 52 may transmit a deactivation command. Wherein the activation/deactivation command is used to activate/deactivate a secondary cell. Of course, the identifying unit 51 may also determine the signal quality of the secondary cell through the measurement report, and determine that the signal quality of the secondary cell is reduced, for example, when the parameter representing the signal quality is lower than a preset threshold, the first sending unit 52 may send a deactivation command, or send a deletion command.
In this embodiment, the first sending unit 52 is configured to send an activation/deactivation/deletion/scheduling command to the terminal, and send the activation/deactivation/deletion/scheduling command to the second base station; or sending an activation/deactivation/deletion/scheduling command to the terminal, and sending the activation/deactivation/deletion/scheduling command to the second base station after receiving the confirmation message of the terminal; or, before sending the activation/deactivation/deletion/scheduling command to the terminal, sending the activation/deactivation/deletion/scheduling command to the second base station.
That is, as an embodiment, the first sending unit 52 is configured to send an activation command to the terminal and send an activation command to the second base station based on the first identification result of the identifying unit 51; the activation command includes information of an activation cell; further configured to send a deactivation command to the terminal based on the first identification result of the identification unit 51, and send a deactivation command to the second base station; the deactivation command includes information to deactivate a cell.
Specifically, the first sending unit 52 sends an activation command to the terminal, and sends an activation command to the second base station; as another embodiment, the first sending unit 52 sends an activation command to the terminal, and after the receiving unit of the first base station receives the acknowledgement feedback message of the terminal, the first sending unit 52 sends the activation command to the second base station. As a third embodiment, before the first sending unit 52 sends the activation command to the terminal, it sends the activation command to the second base station; the advance time may be controlled by the first base station, or the first base station may be pre-configured with a default value characterizing the advance time before the first base station decides to send the activation command to the terminal to send the activation command to the second base station. The activation command may only include information of an activated cell, and may also include a transmission time of the activation command; the information of the activated cell and the sending time of the activation command can be identified by a frame number and/or a subframe number, so that the second base station can deduce that the terminal has received the activation command according to the activation command, and can determine whether the auxiliary cell to which the second base station belongs is in an activated state or a deactivated state. Alternatively, the first sending unit 52 may also send a notification message to the second base station, where the notification message is used to notify the second base station that the terminal has currently received the activation command, so that the second base station can learn that the terminal has currently received the activation command without inference.
In the same way as above, when the first sending unit 52 sends the deactivation command to the terminal, it sends the deactivation command to the second base station; as another embodiment, the first sending unit 52 sends a deactivation command to the terminal, and sends the deactivation command to the second base station after receiving the acknowledgement feedback message of the terminal. As a third implementation manner, before the first sending unit 52 sends the deactivation command to the terminal, the deactivation command is sent to the second base station. The deactivation command may only include information of the deactivated cell, and may further include a transmission time of the deactivation command; the information of the deactivated cell and the sending time of the deactivation command can be identified by a frame number and/or a subframe number, so that the second base station can deduce that the terminal has received the deactivation command according to the deactivation command, and can determine whether the auxiliary cell to which the second base station belongs is in an activated state or a deactivated state. Alternatively, the first sending unit 52 may also send a notification message to the second base station, where the notification message is used to notify the second base station that the terminal has currently received the deactivation command, so that the second base station can learn that the terminal has currently received the deactivation command without inference.
Further, as an embodiment, when the terminal receives the deactivation command sent by the first sending unit 52 of the first base station, it sends an acknowledgement feedback message to the first base station; that is, after the receiving unit of the first base station receives the acknowledgement feedback message, which is sent by the terminal and represents the deactivation command, the first sending unit 52 sends a notification message to the second base station to notify the second base station that the current terminal has received the deactivation command, so that the second base station can determine whether the secondary cell to which the second base station belongs is in an activated state or a deactivated state.
As another embodiment, the identifying unit 51 is further configured to identify the signal quality of the secondary cell, and obtain a second identification result;
the first sending unit 52 is configured to send an activation command to the terminal and send an activation command to the second base station based on the first identification result of the identifying unit 51; the activation command includes information of an activation cell; further configured to send a delete command to the terminal based on the second identification result of the identification unit 51, and send a delete command to the second base station; the delete command includes information to delete a cell.
Specifically, the first sending unit 52 sends an activation command to the terminal, and sends an activation command to the second base station; as another embodiment, the first sending unit 52 sends an activation command to the terminal, and after the receiving unit of the first base station receives the acknowledgement feedback message of the terminal, the first sending unit 52 sends the activation command to the second base station. As a third embodiment, before the first sending unit 52 sends the activation command to the terminal, it sends the activation command to the second base station; the advance time may be controlled by the first base station, or the first base station may be pre-configured with a default value characterizing the advance time before the first base station decides to send the activation command to the terminal to send the activation command to the second base station. The activation command may only include information of an activated cell, and may also include a transmission time of the activation command; the information of the activated cell and the sending time of the activation command can be identified by a frame number and/or a subframe number, so that the second base station can determine or deduce that the terminal has received the activation command according to the activation command, and can determine whether the auxiliary cell to which the second base station belongs is in an activated state or a deactivated state. Alternatively, the first sending unit 52 may also send a notification message to the second base station, where the notification message is used to notify the second base station that the terminal has currently received the activation command, so that the second base station can learn that the terminal has currently received the activation command without inference.
Similarly to the above description, when the first sending unit 52 sends a deletion command to the terminal, it sends the deletion command to the second base station; as another embodiment, the first sending unit 52 sends a deletion command to the terminal, and sends the deletion command to the second base station after receiving the acknowledgement feedback message of the terminal. As a third embodiment, before the first transmitting unit 52 transmits the deletion command to the terminal, the deletion command is transmitted to the second base station. The delete command may only include information of the delete cell, and may also include a transmission time of the delete command; the information of the deletion cell and the sending time of the deletion command can be identified by a frame number and/or a subframe number, so that the second base station can determine or deduce that the terminal has received the deletion command according to the deletion command, and the auxiliary cell to which the second base station belongs can be determined to be in an activated state or a deleted state. And the deleting command is used for deleting the information of the secondary cell so that the information cannot be activated.
As still another embodiment, the first sending unit 52 is configured to send a scheduling command to the terminal and send the scheduling command to the second base station based on the first identification result of the identifying unit 51; the scheduling command includes information of a scheduling cell.
It should be understood by those skilled in the art that, the functions of each processing unit in the base station according to the embodiment of the present invention may be understood by referring to the related description of the control method for activating and deactivating in carrier aggregation, and each processing unit in the base station according to the embodiment of the present invention may be implemented by an analog circuit that implements the functions described in the embodiment of the present invention, or may be implemented by running software that performs the functions described in the embodiment of the present invention on an intelligent terminal.
In the embodiment of the present invention, the identification Unit 51 in the base station may be implemented by a Central Processing Unit (CPU), a Digital Signal Processor (DSP), or a Programmable gate array (FPGA) in the base station in practical application; the first sending unit 52 in the base station may be implemented by a transmitting antenna or a transmitter of the base station in practical applications.
Example four
The embodiment of the invention also provides a base station, which is a second base station. Fig. 10 is a schematic structural diagram of a second base station according to an embodiment of the present invention; as shown in fig. 10, the second base station includes: a receiving unit 61 and a determining unit 62; wherein,
the receiving unit 61 is configured to receive an activation/deactivation/deletion/scheduling command;
the determining unit 62 is configured to determine an activation/deactivation state of the secondary cell based on the activation/deactivation/deletion/scheduling command received by the receiving unit 61, so as to synchronize the cell state in the second base station with the first base station.
In this embodiment, the receiving unit 61 receives an activation/deactivation/deletion/scheduling command sent by a first base station; the activation/deactivation/deletion/scheduling command may only include information of the activation/deactivation/deletion/scheduling cell, and may also include a transmission time of the activation/deactivation/deletion/scheduling command; the information of the activated/deactivated/deleted/scheduled cell and the transmission time of the activation/deactivation/deleted/scheduled command may be identified by a frame number and/or a subframe number, so that the determining unit 62 can deduce that the terminal has received the activation/deactivation/deleted/scheduled command according to the activation/deactivation/deleted/scheduled command, and thus can determine whether the secondary cell to which the terminal belongs is in an activated state or a deactivated state.
The base station further comprises a second sending unit 63, configured to send a scheduling command to the terminal after the receiving unit 61 receives the activation command, so that the terminal starts a deactivation timer, and executes a deactivation process when the deactivation timer times out; the scheduling command includes information of a scheduling cell.
The embodiment is applied to the secondary cell with the self-scheduling function, that is, the second base station has the scheduling function. In this application scenario, when the receiving unit 61 receives the activation command, that is, when the current secondary cell is in the activated state, the second transmitting unit 63 of the second base station may transmit the scheduling command to the terminal, and the terminal actively executes the deactivation process. And when the terminal receives the activation command, the terminal starts a deactivation timer, and in the time range of the deactivation timer, the terminal activates the secondary cell to enable the secondary cell to be in an activation state. Further, when the terminal receives the scheduling command, the deactivation timer is restarted, and the secondary cell is still in an activated state within the time range of the activation timer. And only when the deactivation timer is over, the terminal executes the deactivation process of the secondary cell to enable the secondary cell to be in a deactivation state.
Further, the second sending unit 63 is further configured to send a notification message representing the scheduling command to the first base station. The notification message may only include information of a scheduling cell, and may further include a transmission time of the scheduling command; the information of the scheduling cell and the transmission time of the scheduling command may be identified by a frame number and/or a subframe number. After receiving the notification message, the first base station may infer, according to the time when the notification message is received or the time when the scheduling command is sent, the time when the terminal receives the scheduling command; so that the first base station can determine whether the state of the secondary cell within the control range is an activated state or a deactivated state. Alternatively, the second sending unit 63 may also send a notification message to the first base station, where the notification message is used to notify the first base station that the terminal has currently received the scheduling command, so that the first base station can know that the terminal has currently received the scheduling command without inference.
It should be understood by those skilled in the art that, the functions of each processing unit in the base station according to the embodiment of the present invention may be understood by referring to the related description of the control method for activating and deactivating in carrier aggregation, and each processing unit in the base station according to the embodiment of the present invention may be implemented by an analog circuit that implements the functions described in the embodiment of the present invention, or may be implemented by running software that performs the functions described in the embodiment of the present invention on an intelligent terminal.
In the embodiment of the present invention, the determining unit 62 in the base station may be implemented by a CPU, a DSP, or an FPGA in the base station in practical application; the receiving unit 61 in the base station may be implemented by a receiving antenna or a receiver in the base station in practical applications; the second sending unit 63 in the base station may be implemented by a transmitting antenna or a transmitter in the base station in practical applications.
EXAMPLE five
The embodiment of the invention also provides a control system for activating and deactivating in the carrier aggregation. The system includes the first base station according to the fourth embodiment of the present invention and the second base station according to the fourth embodiment of the present invention. In particular, the method comprises the following steps of,
the first base station is used for sending an activation/deactivation/deletion/scheduling command to the terminal and sending the activation/deactivation/deletion/scheduling command to the second base station;
the second base station is configured to receive an activation/deactivation/deletion/scheduling command sent by the first base station, and determine a state of the secondary cell based on the activation/deactivation/deletion/scheduling command, so that a cell state in the second base station is synchronized with the first base station.
In one embodiment, the first base station is configured to send an activation command to the terminal based on a service requirement of the terminal, and send the activation command to the second base station; the activation command includes information of an activation cell; the terminal is also used for sending a deactivation command to the terminal based on the service requirement of the terminal and sending the deactivation command to the second base station; the deactivation command includes information to deactivate a cell.
As another embodiment, the first base station is configured to send an activation command to the terminal based on a service requirement of the terminal, and send the activation command to the second base station; the activation command includes information of an activation cell; sending a deleting command to the terminal based on the signal quality of the auxiliary cell, and sending the deleting command to the second base station; the delete command includes information to delete a cell.
In yet another embodiment, the first base station is configured to send a scheduling command to a terminal based on a service requirement of the terminal, and send the scheduling command to a second base station; the scheduling command includes information of a scheduling cell.
In this embodiment, the first base station is configured to send an activation/deactivation/deletion/scheduling command to the terminal, and send the activation/deactivation/deletion/scheduling command to the second base station; or, the base station is configured to send an activation/deactivation/deletion/scheduling command to the terminal, and send the activation/deactivation/deletion/scheduling command to the second base station after receiving the confirmation message of the terminal; or, before sending the activation/deactivation/deletion/scheduling command to the terminal, sending the activation/deactivation/deletion/scheduling command to the second base station.
In this embodiment, further, the second base station is configured to send a scheduling command to the terminal after receiving the activation command sent by the first base station, so that the terminal starts a deactivation timer, and executes a deactivation process when the deactivation timer expires; the scheduling command includes information of a scheduling cell.
Further, the second base station is further configured to send a notification message representing the scheduling command to the first base station when the scheduling command is sent to the terminal.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (19)

1. A control method for activation and deactivation in carrier aggregation is characterized by comprising the following steps:
the first base station sends an activation/deactivation/deletion/scheduling command to a terminal, and sends the activation/deactivation/deletion/scheduling command to a second base station, so that the cell state in the second base station is synchronous with the first base station.
2. The method of claim 1, wherein the first base station sends an activation/deactivation/deletion/scheduling command to the terminal and an activation/deactivation/deletion/scheduling command to the second base station, comprising:
the first base station sends an activation command to the terminal based on the terminal service requirement, and sends the activation command to the second base station; the activation command includes information of an activation cell;
the first base station sends a deactivation command to the terminal based on the service requirement of the terminal, and sends the deactivation command to the second base station; the deactivation command includes information to deactivate a cell.
3. The method of claim 1, wherein the first base station sends an activation/deactivation/deletion/scheduling command to the terminal and an activation/deactivation/deletion/scheduling command to the second base station, comprising:
the first base station sends an activation command to the terminal based on the terminal service requirement, and sends the activation command to the second base station; the activation command includes information of an activation cell;
the first base station sends a deleting command to the terminal based on the signal quality of the auxiliary cell and sends the deleting command to the second base station; the delete command includes information to delete a cell.
4. The method of claim 1, wherein the first base station sends an activation/deactivation/deletion/scheduling command to the terminal and an activation/deactivation/deletion/scheduling command to the second base station, comprising:
the first base station sends a scheduling command to the terminal based on the terminal service requirement, and sends the scheduling command to the second base station; the scheduling command includes information of a scheduling cell.
5. The method of claim 1, wherein the first base station sends an activation/deactivation/deletion/scheduling command to the terminal and an activation/deactivation/deletion/scheduling command to the second base station, comprising:
the first base station sends an activation/deactivation/deletion/scheduling command to a terminal and sends the activation/deactivation/deletion/scheduling command to a second base station;
or, the first base station sends an activation/deactivation/deletion/scheduling command to a terminal, and after receiving a confirmation message of the terminal, sends the activation/deactivation/deletion/scheduling command to a second base station;
or before the first base station sends the activation/deactivation/deletion/scheduling command to the terminal, the activation/deactivation/deletion/scheduling command is sent to the second base station.
6. A control method for activation and deactivation in carrier aggregation is characterized by comprising the following steps:
the second base station receives the activation/deactivation/deletion/scheduling command, and determines the state of the secondary cell based on the activation/deactivation/deletion/scheduling command so as to synchronize the cell state in the second base station with the first base station.
7. The method of claim 6, wherein after the second base station receives the activation command, the method further comprises: the second base station sends a scheduling command to the terminal so that the terminal starts a deactivation timer, and a deactivation process is executed when the deactivation timer is timed out; the scheduling command includes information of a scheduling cell.
8. A base station, the base station being a first base station; characterized in that the base station comprises: an identification unit and a first sending unit; wherein,
the identification unit is used for identifying the service requirement of the terminal and obtaining a first identification result;
the first sending unit is configured to send an activation/deactivation/deletion/scheduling command to the terminal based on the first identification result of the identification unit, and send the activation/deactivation/deletion/scheduling command to the second base station, so that the cell state in the second base station is synchronized with the first base station.
9. The base station of claim 8, wherein the first sending unit is configured to send an activation command to the terminal based on the first identification result of the identification unit, and send the activation command to the second base station; the activation command includes information of an activation cell; the terminal is also used for sending a deactivation command to the terminal based on the first identification result of the identification unit and sending the deactivation command to the second base station; the deactivation command includes information to deactivate a cell.
10. The base station of claim 8, wherein the identifying unit is further configured to identify signal quality of a secondary cell to obtain a second identification result;
the first sending unit is used for sending an activation command to the terminal based on the first identification result of the identification unit and sending the activation command to the second base station; the activation command includes information of an activation cell; the terminal is also used for sending a deleting command to the terminal based on the second identification result of the identification unit and sending the deleting command to the second base station; the delete command includes information to delete a cell.
11. The base station of claim 8, wherein the first sending unit is configured to send a scheduling command to the terminal based on the first identification result of the identification unit, and send the scheduling command to the second base station; the scheduling command includes information of a scheduling cell.
12. The base station of claim 8, wherein the first sending unit is configured to send the activation/deactivation/deletion/scheduling command to the second base station while sending the activation/deactivation/deletion/scheduling command to the terminal; or sending an activation/deactivation/deletion/scheduling command to the terminal, and sending the activation/deactivation/deletion/scheduling command to the second base station after receiving the confirmation message of the terminal; or, before sending the activation/deactivation/deletion/scheduling command to the terminal, sending the activation/deactivation/deletion/scheduling command to the second base station.
13. A base station, the base station being a second base station; characterized in that the base station comprises: a receiving unit and a determining unit; wherein,
the receiving unit is used for receiving an activation/deactivation/deletion/scheduling command;
the determining unit is configured to determine the state of the secondary cell based on the activation/deactivation/deletion/scheduling command received by the receiving unit, so as to synchronize the cell state in the second base station with the first base station.
14. The base station according to claim 13, wherein the base station further comprises a second sending unit, configured to send a scheduling command to the terminal after the receiving unit receives the activation command, so that the terminal starts a deactivation timer, and performs a deactivation process when the deactivation timer expires; the scheduling command includes information of a scheduling cell.
15. A control system for activation and deactivation in carrier aggregation, the system comprising: a first base station and a second base station; wherein,
the first base station is used for sending an activation/deactivation/deletion/scheduling command to the terminal and sending the activation/deactivation/deletion/scheduling command to the second base station;
the second base station is configured to receive an activation/deactivation/deletion/scheduling command sent by the first base station, and determine a state of the secondary cell based on the activation/deactivation/deletion/scheduling command, so that a cell state in the second base station is synchronized with the first base station.
16. The system of claim 15, wherein the first base station is configured to send an activation command to the terminal based on a service requirement of the terminal, and send the activation command to the second base station; the activation command includes information of an activation cell; the terminal is also used for sending a deactivation command to the terminal based on the service requirement of the terminal and sending the deactivation command to the second base station; the deactivation command includes information to deactivate a cell.
17. The system of claim 15, wherein the first base station is configured to send an activation command to the terminal based on a service requirement of the terminal, and send the activation command to the second base station; the activation command includes information of an activation cell; sending a deleting command to the terminal based on the signal quality of the auxiliary cell, and sending the deleting command to the second base station; the delete command includes information to delete a cell.
18. The system of claim 15, wherein the first base station is configured to send the activation/deactivation/deletion/scheduling command to the terminal and send the activation/deactivation/deletion/scheduling command to the second base station at the same time; or, the base station is configured to send an activation/deactivation/deletion/scheduling command to the terminal, and send the activation/deactivation/deletion/scheduling command to the second base station after receiving the confirmation message of the terminal; or, before sending the activation/deactivation/deletion/scheduling command to the terminal, sending the activation/deactivation/deletion/scheduling command to the second base station.
19. The system according to claim 15, wherein the second base station is configured to send a scheduling command to the terminal after receiving the activation command sent by the first base station, so that the terminal starts a deactivation timer, and performs a deactivation process when the deactivation timer expires; the scheduling command includes information of a scheduling cell.
CN201610118979.1A 2016-03-01 2016-03-01 The control method, system and base station of deactivation are activated in carrier aggregation Withdrawn CN107147482A (en)

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