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WO2020135626A1 - Procédé de détermination de la capacité d'agrégation de porteuses sur un terminal, et dispositif associé - Google Patents

Procédé de détermination de la capacité d'agrégation de porteuses sur un terminal, et dispositif associé Download PDF

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Publication number
WO2020135626A1
WO2020135626A1 PCT/CN2019/128844 CN2019128844W WO2020135626A1 WO 2020135626 A1 WO2020135626 A1 WO 2020135626A1 CN 2019128844 W CN2019128844 W CN 2019128844W WO 2020135626 A1 WO2020135626 A1 WO 2020135626A1
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WO
WIPO (PCT)
Prior art keywords
terminal
cell
network device
information
combination list
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/128844
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English (en)
Chinese (zh)
Inventor
王丁
崔立伟
姚楚婷
邝奕如
王键
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2020135626A1 publication Critical patent/WO2020135626A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present invention relates to the field of communication technology, and in particular, to a method and related equipment for determining a carrier aggregation capability of a terminal.
  • the existing communication protocol stipulates that the maximum number of carrier aggregation (CA) combinations reported by user equipment (UE) to the base station is limited.
  • CA carrier aggregation
  • MBB mobile Brondband
  • the actual number of supported CA combinations may be more than the maximum value specified in the agreement.
  • the UE does not know the maximum number of combinations that the base station can support.
  • compatibility problems may occur, which ultimately causes the UE to fail to access the network. Therefore, how to prevent the terminal from being unable to access the network due to the large number of CA combinations reported by the terminal is a technical problem that needs to be solved urgently.
  • Embodiments of the present invention provide a method and related equipment for determining a carrier aggregation capability of a terminal, which can reduce the number of CA combinations reported by the terminal, avoid compatibility problems, and ensure the success rate of terminal access to the network.
  • an embodiment of the present invention provides a method for determining the CA capability of a terminal, which is applied to the terminal side.
  • the method includes: a terminal receives CA information of a cell sent by a network device, and the CA information includes a list of CA frequency bands where the secondary cell of the cell is located or a first CA combination list supported by the cell.
  • the terminal sends a second CA combination list to the network device.
  • the second CA combination list is determined by the terminal according to the CA information sent by the network device and the CA combination supported by the terminal.
  • the second CA combination list is used by the network device to determine the CA capability of the terminal.
  • the terminal determines the CA combination list by combining the CA information of the cell sent by the network device and the CA combination supported by the terminal itself, and the number of CA combinations included in the determined CA combination list is less than or equal to all the CAs supported by the terminal itself The number of combinations, therefore, the terminal can reduce the number of CA combinations reported, to avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and to ensure the success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is located in the CA frequency band where the cell and its secondary cell are located or the CA combination supported by the cell itself.
  • the CA combination reported by the terminal is reported according to the actual configuration of the cell, which can improve the terminal's report.
  • the degree of matching between the CA combination and the CA combination supported by the cell In addition, if the operator updates the CA band combination configuration that it supports, the terminal can also be fully adaptive without synchronization on the terminal side, which improves the adaptability of communication.
  • the cell includes a cell that the terminal is ready to access or is accessing.
  • the cell is the primary cell of the terminal.
  • the secondary cell is a secondary cell configured by the network device for the primary cell.
  • the CA information includes a CA frequency band where the secondary cell is located or a first CA combination list supported by the primary cell.
  • the terminal receiving the CA information of the cell sent by the network device includes: the terminal receiving the radio resource control RRC connection establishment message sent by the network device, and the RRC connection establishment message carries the CA information.
  • the terminal sending the second CA combination list to the network device includes: the terminal sending an RRC connection establishment complete message to the network device, and the RRC connection establishment complete message carries the second CA combination list.
  • the terminal sends a terminal capability information message to the network device, and the terminal capability information message carries the second CA combination list.
  • the terminal sends a first message newly defined in the protocol to the network device, where the first message includes the second CA combination list.
  • the terminal receives the CA information of the cell sent by the network device, including: the terminal receives the RRC connection establishment message sent by the network device, and the RRC connection establishment message carries the CA information of the cell; the terminal receives the RRC sent by the network device After the connection establishment message, the second CA combination list is sent to the network device through a subsequent terminal capability reporting process.
  • the network device sends a terminal capability query request to the terminal, the terminal receives the terminal capability query request sent by the network device, and sends the second CA combination list to the network device through the terminal capability information message.
  • the terminal in the initial network access phase, after completing the RRC connection process, the terminal will perform a terminal capability reporting process.
  • the terminal will report its capabilities to the network device, where the reporting capabilities Including the above second CA combination list.
  • the network device actively queries the capabilities of the terminal.
  • the terminal receives the CA information of the cell sent by the network device, including: the terminal receives the RRC connection establishment message sent by the network device, and the RRC connection establishment message carries the CA information of the cell; the terminal receives the RRC sent by the network device After the connection establishment message, before the terminal sends the second CA combination list to the network device, it also includes: the terminal sends instruction information to the network device, the instruction information is used to notify the network device to query the terminal's capabilities; the terminal receives the terminal sent by the network device according to the instruction information Capability query request; the terminal sending the second CA combination list to the network device includes: the terminal sending a terminal capability information message to the network device according to the terminal capability query request sent by the network device, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the terminal's capability, so that the terminal can report the second CA combination list to the network device.
  • the terminal receiving the CA information of the cell sent by the network device includes: the terminal receiving the RRC connection reestablishment message sent by the network device, and the RRC connection reestablishment message carries the CA information of the cell.
  • the terminal sending the second CA combination list to the network device includes: the terminal sending an RRC connection reestablishment complete message to the network device, and the RRC connection reestablishment complete message carries the second CA combination list.
  • the terminal sends a second message newly defined in the protocol to the network device, where the second message includes the second CA combination list.
  • the terminal receiving the CA information of the cell sent by the network device includes: the terminal receiving the RRC connection reestablishment message sent by the network device, and the RRC connection reestablishment message carries the CA information of the cell.
  • the method further includes: the terminal sends indication information to the network device, which is used to notify the network device to query the terminal's capability. The terminal receives the terminal capability query request sent by the network device according to the instruction information.
  • the terminal sending the second CA combination list to the network device includes: the terminal sending a terminal capability information message to the network device according to the terminal capability query request sent by the network device, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • the terminal receiving the CA information of the cell sent by the network device includes: the terminal receiving a system message sent by the network device, the system message carrying the CA information of the cell.
  • the terminal sending the second CA combination list to the network device includes: the terminal sending an RRC connection establishment complete message to the network device, and the RRC connection establishment complete message carries the second CA combination list.
  • the terminal sends an RRC connection reestablishment complete message to the network device, and the RRC connection reestablishment complete message carries the second CA combination list.
  • the terminal sends a terminal capability information message to the network device, and the terminal capability information message includes the second CA combination list.
  • the terminal sends a third message newly defined by the protocol to the network device, where the third message includes the second CA combination list; or, the terminal sends an RRC connection establishment request to the network device, where the RRC connection establishment request includes all The second CA combination list; or, the terminal requests an RRC connection reestablishment request to the network device, where the RRC connection reestablishment request includes the second CA combination list.
  • the terminal receives the CA information of the cell sent by the network device, including: the terminal receives the system message sent by the network device, and the system message carries the CA information of the cell; after the terminal receives the system message sent by the network device, the terminal Before sending the second CA combination list to the network device, the method further includes: the terminal sends indication information to the network device, the indication information is used to notify the network device to query the terminal's capabilities; the terminal receives the terminal capability query request sent by the network device according to the indication information; Sending the second CA combination list by the network device includes: the terminal sending a terminal capability information message to the network device according to the terminal capability query request sent by the network device, where the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • the terminal receiving the CA information of the cell sent by the network device includes: the terminal receiving the fifth message newly defined in the protocol sent by the network device, the fifth message carrying the CA information of the cell.
  • an embodiment of the present invention provides another method for determining the CA capability of a terminal, which is applied to the network device side.
  • the method includes: the network device sends CA information of the cell to the terminal, and the CA information includes a list of CA frequency bands where the secondary cell of the cell is located or a first CA combination list supported by the cell.
  • the network device receives the second CA combination list sent by the terminal.
  • the second CA combination list is determined by the terminal according to the CA information sent by the network device and the CA combination supported by the terminal.
  • the second CA combination list is used by the network device to determine the CA capability of the terminal.
  • the terminal determines the CA combination list by combining the CA information sent by the network device and the CA combination supported by the terminal itself, and the number of CA combinations included in the determined CA combination list is less than or equal to all CA combinations supported by the terminal itself Therefore, the terminal can reduce the number of reported CA combinations, avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and ensure the success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is located in the CA frequency band where the cell and its secondary cell are located or the CA combination supported by the cell itself.
  • the CA combination reported by the terminal is reported according to the actual configuration of the cell, which can improve the terminal's report.
  • the degree of matching between the CA combination and the CA combination supported by the cell is also be fully adaptive without synchronization on the terminal side, which improves the adaptability of communication.
  • the cell includes a cell that the terminal is ready to access or is accessing.
  • the cell is the primary cell of the terminal.
  • the secondary cell is a secondary cell configured by the network device for the primary cell.
  • the CA information includes a CA frequency band where the secondary cell is located or a first CA combination list supported by the primary cell.
  • the network device sends the CA information of the cell to the terminal, including: the network device sends a radio resource control RRC connection establishment message to the terminal, and the RRC connection establishment message carries the CA information of the cell.
  • the network device receiving the second CA combination list sent by the terminal includes: the network device receives the RRC connection establishment complete message sent by the terminal, and the RRC connection establishment complete message carries the second CA combination list.
  • the network device receives the terminal capability information message sent by the terminal, and the terminal capability information message carries the second CA combination list.
  • the network device receives the first message newly defined in the protocol sent by the terminal, and the first message includes the second CA combination list.
  • the network device sends the CA information of the cell to the terminal, including: the network device sends an RRC connection establishment message to the terminal, and the RRC connection establishment message carries the CA information of the cell; the network device sends the RRC connection establishment message to the terminal After that, the second CA combination list is obtained from the terminal through a subsequent terminal capability reporting process.
  • the network device sends a terminal capability query request to the terminal, and receives the terminal capability information message sent by the terminal, where the message includes the second CA combination list.
  • the terminal in the initial network access phase, after completing the RRC connection process, the terminal will perform a terminal capability reporting process.
  • the terminal will report its capabilities to the network device, where the reporting capabilities Including the above second CA combination list.
  • the network device actively queries the capabilities of the terminal.
  • the network device sends the CA information of the cell to the terminal, including: the network device sends an RRC connection establishment message to the terminal, and the RRC connection establishment message carries the CA information of the cell; the network device sends the RRC connection establishment message to the terminal
  • the network device receives the indication information sent by the terminal, and the indication information is used to notify the network device to query the terminal's capability; the network device sends the terminal capability to the terminal according to the indication information Query request; the network device receives the second CA combination list sent by the terminal, including: the network device receives the terminal capability information message sent by the terminal, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the terminal's capability, so that the terminal can report the second CA combination list to the network device.
  • the network device sends the CA information of the cell to the terminal, including: the network device sends an RRC connection reestablishment message to the terminal, and the RRC connection reestablishment message carries the CA information of the cell.
  • the network device receiving the second CA combination list sent by the terminal includes: the network device receiving the RRC connection reestablishment complete message sent by the terminal, and the RRC connection reestablishment complete message carries the second CA combination list.
  • the network device receives the second message newly defined in the protocol sent by the terminal, and the second message includes the second CA combination list.
  • the network device sends the CA information of the cell to the terminal, including: the network device sends an RRC connection reestablishment message to the terminal, and the RRC connection reestablishment message carries the CA information of the cell.
  • the network device further includes: the network device receives the indication information sent by the terminal. The indication information is used to notify the network device to query the terminal's capabilities.
  • the network device sends a terminal capability query request to the terminal.
  • the network device receiving the second CA combination list sent by the terminal includes: the network device receiving the terminal capability information message sent by the terminal, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • the network device sending the CA information of the cell to the terminal includes: the network device sending a system message to the terminal, the system message carrying the CA information of the cell.
  • the network device receiving the second CA combination list sent by the terminal includes: the network device receives the RRC connection establishment complete message sent by the terminal, and the RRC connection establishment complete message carries the second CA combination list.
  • the network device receives the RRC connection reestablishment complete message sent by the terminal, and the RRC connection reestablishment complete message carries the second CA combination list.
  • the network device receives the terminal capability information message sent by the terminal, and the terminal capability information message includes the second CA combination list.
  • the network device receives a third message newly defined in the protocol sent by the terminal, and the third message includes a second CA combination list; or, the network device receives the RRC connection establishment request sent by the terminal, in the RRC connection establishment request Including the second CA combination list; or, the network device receives the RRC connection reestablishment request sent by the terminal, and the RRC connection reestablishment request includes the second CA combination list.
  • the network device sends the CA information of the cell to the terminal, including: the network device sends a system message to the terminal, and the system message carries the CA information of the cell; after the network device sends the system message to the terminal, the network device receives the terminal Before sending the second CA combination list, it also includes: the network device receives the instruction information sent by the terminal, and the instruction information is used to notify the network device to query the terminal's capabilities; the network device sends a terminal capability query request to the terminal according to the instruction information; the network device receives the terminal
  • the sent second CA combination list includes: the network device receives the terminal capability information message sent by the terminal, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • the network device sending the CA information of the cell to the terminal includes: the network device sending a fifth message newly defined in the protocol to the terminal, the fifth message carrying the CA information of the cell.
  • an embodiment of the present invention provides another method for determining the CA capability of a terminal, which is applied to the terminal side.
  • the method includes: a terminal receiving CA information of a second cell sent by a first cell through a first network device, where the CA information includes a list of CA frequency bands where the secondary cell of the second cell is located or a first CA combined list supported by the second cell.
  • the terminal sends a second CA combination list to the second network device.
  • the second CA combination list is determined by the terminal according to the CA information of the second cell and the CA combination supported by the terminal.
  • the second CA combination list is used by the second network device to determine the terminal’s CA capabilities.
  • the terminal in a mobile handover scenario, the terminal combines the CA information of the second cell after handover and the CA combination supported by the terminal to determine the CA combination list, and the number of CA combinations included in the determined CA combination list is less than It is equal to the number of all CA combinations supported by the terminal itself. Therefore, the terminal can reduce the number of reported CA combinations, avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and ensure the success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is the CA frequency band where the second cell and its secondary cell are located after the handover or the CA combination supported by the second cell itself.
  • the CA combination reported by the terminal is based on the second cell after the handover If the actual configuration is reported, the matching between the CA combination reported by the terminal and the CA combination supported by the cell can be improved. In addition, if the operator updates the CA band combination configuration that it supports, the terminal can also be fully adaptive without synchronization on the terminal side, which improves the adaptability of communication.
  • the first cell is a cell where the terminal is currently located
  • the second cell is a cell to which the terminal is prepared to switch.
  • the second cell is the primary cell after the terminal is handed over.
  • the secondary cell is a secondary cell configured by the network device for the primary cell.
  • the CA information includes a CA frequency band where the secondary cell is located or a first CA combination list supported by the primary cell.
  • the first network device and the second network device are different network devices.
  • the embodiment of the present invention relates to cell handover across network devices.
  • the first network device and the second network device are the same network device, and the embodiment of the present invention relates to cell handover in the same network device.
  • the terminal receiving the CA information of the second cell sent by the first cell through the first network device includes: the terminal receiving the RRC connection reconfiguration message sent by the first cell through the first network device, and the RRC connection reconfiguration message
  • the configuration message carries the CA information of the second cell.
  • the terminal sending the second CA combination list to the second network device includes: the terminal sending an RRC connection reconfiguration completion message to the second network device, and the RRC connection reconfiguration completion message carries the second CA combination list.
  • the terminal sends a fourth message newly defined in the protocol to the second network device, where the fourth message carries the second CA combination list.
  • the terminal receiving the CA information of the second cell sent by the first cell through the first network device includes: the terminal receiving the RRC connection reconfiguration message sent by the first cell through the first network device, and the RRC connection reconfiguration message The configuration message carries the CA information of the second cell.
  • the method further includes: the terminal sends indication information to the second network device, and the indication information is used to notify the second network
  • the device queries the capabilities of the terminal.
  • the terminal receives the terminal capability query request sent by the second network device according to the indication information.
  • the terminal sending the second CA combination list to the second network device includes: the terminal sending a terminal capability information message to the second network device according to the terminal capability query request, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • an embodiment of the present invention provides another method for determining the CA capability of a terminal, which is applied to the first network device side.
  • the method includes: the first network device determines the CA information of the second cell, and the CA information includes a list of CA frequency bands where the secondary cell of the second cell is located or a first CA combination list supported by the second cell.
  • the first network device sends CA information to the terminal on the first cell.
  • the terminal in a mobile handover scenario, the terminal combines the CA information of the second cell after handover and the CA combination supported by the terminal to determine the CA combination list, and the number of CA combinations included in the determined CA combination list is less than It is equal to the number of all CA combinations supported by the terminal itself.
  • the terminal can reduce the number of reported CA combinations, avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and ensure the success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is the CA frequency band where the second cell and its secondary cell are located after the handover or the CA combination supported by the second cell itself.
  • the CA combination reported by the terminal is based on the second cell after the handover If the actual configuration is reported, the matching between the CA combination reported by the terminal and the CA combination supported by the cell can be improved.
  • the terminal can also be fully adaptive without synchronization on the terminal side, which improves the adaptability of communication.
  • the first cell is a cell where the terminal is currently located
  • the second cell is a cell to which the terminal is prepared to switch.
  • the second cell is the primary cell after the terminal is handed over.
  • the secondary cell is a secondary cell configured by the network device for the primary cell.
  • the CA information includes a CA frequency band where the secondary cell is located or a first CA combination list supported by the primary cell.
  • the first network device sending the CA information of the second cell to the terminal includes: the first network device sends an RRC connection reconfiguration message to the terminal, and the RRC connection reconfiguration message carries the CA information of the second cell.
  • an embodiment of the present invention provides another method for determining the CA capability of a terminal, which is applied to the second network device side.
  • the method includes: the second network device receives a second CA combination list sent by the terminal, the second CA combination list is determined by the terminal according to the CA information of the second cell and the CA combination supported by the terminal, and the second CA combination list is used for the second The network device determines the CA capability of the terminal.
  • the terminal in a mobile handover scenario, the terminal combines the CA information of the second cell after handover and the CA combination supported by the terminal to determine the CA combination list, and the number of CA combinations included in the determined CA combination list is less than It is equal to the number of all CA combinations supported by the terminal itself.
  • the terminal can reduce the number of reported CA combinations, avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and ensure the success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is the CA frequency band where the second cell and its secondary cell are located after the handover or the CA combination supported by the second cell itself.
  • the CA combination reported by the terminal is based on the second cell after the handover
  • the actual configuration reported can improve the match between the CA combination reported by the terminal and the CA combination supported by the cell.
  • the terminal can also be fully adaptive without synchronization on the terminal side, which improves the adaptability of communication.
  • the first cell is a cell where the terminal is currently located
  • the second cell is a cell to which the terminal is prepared to switch.
  • the second cell is the primary cell after the terminal is handed over.
  • the secondary cell is a secondary cell configured by the network device for the primary cell.
  • the CA information includes a CA frequency band where the secondary cell is located or a first CA combination list supported by the primary cell.
  • the second network device receives the second CA combination list sent by the terminal, including: the second network device receives the RRC connection reconfiguration complete message sent by the terminal, and the RRC connection reconfiguration complete message carries the second CA combination List. Or, the second network device receives a newly defined fourth message in the protocol sent by the terminal, where the fourth message carries the second CA combination list.
  • the method before the second network device receives the second CA combination list sent by the terminal, the method further includes: the second network device receives indication information sent by the terminal, and the indication information is used to notify the second network device to query the terminal's capability .
  • the second network device sends a terminal capability query request to the terminal according to the instruction information.
  • the second network device receives the second CA combination list sent by the terminal, including: the second network device receives the terminal capability information message sent by the terminal, and the terminal capability information message includes the second CA combination list.
  • first message “second message”, “third message”, “fourth message”, “fifth message”, etc. are only for distinguishing, in practical applications, these The message can be the same message.
  • an embodiment of the present invention provides a terminal, including: a receiving unit configured to receive CA information of a cell sent by a network device, where the CA information includes a list of CA frequency bands where a secondary cell of the cell is located or a first cell supported by the cell CA combination list; sending unit, used to send a second CA combination list to the network device, the second CA combination list is determined by the terminal according to the CA information sent by the network device and the CA combination supported by the terminal, the second CA combination list is used for the network The device determines the CA capabilities of the terminal.
  • the cell includes a cell that the terminal is ready to access or is accessing.
  • the receiving unit is specifically configured to receive a radio resource control RRC connection establishment message sent by a network device, and the RRC connection establishment message carries CA information.
  • the sending unit is specifically configured to: send an RRC connection establishment complete message to the network device, the RRC connection establishment complete message carries the second CA combination list; or, send a terminal capability information message to the network device, and the terminal capability information message carries the second CA combination List; or, a first message newly defined in the protocol is sent to the network device, and the first message includes a second CA combination list.
  • the receiving unit is specifically configured to: receive an RRC connection establishment message sent by a network device, where the RRC connection establishment message carries the CA information of the cell; the sending unit is also used in the receiving unit After receiving the RRC connection establishment message sent by the network device, before sending the second CA combination list to the network device, the sending unit sends indication information to the network device, which is used to notify the network device to query the capabilities of the terminal; the receiving unit, It is also used to receive the terminal capability query request sent by the network device according to the instruction information; the sending unit is used to send the second CA combination list to the network device, specifically: sending the terminal to the network device according to the terminal capability query request sent by the network device A capability information message, where the terminal capability information message includes a second CA combination list.
  • the terminal triggers the network device to query the terminal's capability, so that the terminal can report the second CA combination list to the network device.
  • the receiving unit is configured to receive the CA information of the cell sent by the network device, including: receiving an RRC connection reestablishment message sent by the network device, and the RRC connection reestablishment message carries the CA information of the cell.
  • the sending unit is configured to send the second CA combination list to the network device, including: sending an RRC connection reestablishment complete message to the network device, the RRC connection reestablishment complete message carrying the second CA combination list; or, sending the new protocol in the protocol to the network device A defined second message including a second CA combination list.
  • the receiving unit is configured to receive the CA information of the cell sent by the network device, including: receiving an RRC connection reestablishment message sent by the network device, and the RRC connection reestablishment message carries the CA information of the cell.
  • the sending unit is further configured to send indication information to the network device after the receiving unit receives the RRC connection reestablishment message sent by the network device, and before sending the second CA combination list to the network device, the indication information is used to Notify the network device of the ability to query the terminal.
  • the receiving unit is also used to receive a terminal capability query request sent by the network device according to the indication information.
  • the sending unit is configured to send the second CA combination list to the network device, including: sending a terminal capability information message to the network device according to the terminal capability query request sent by the network device, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • the receiving unit is configured to receive the CA information of the cell sent by the network device, including: receiving a system message sent by the network device, the system message carrying the CA information of the cell.
  • the sending unit is configured to send a second CA combination list to the network device, including: sending an RRC connection establishment complete message to the network device, the RRC connection establishment complete message carrying the second CA combination list; or, sending an RRC connection reestablishment to the network device Completion message, the RRC connection re-establishment complete message carries the second CA combination list; or, the terminal capability information message is sent to the network device, and the terminal capability information message includes the second CA combination list; or, the network device sends a newly defined third protocol list Message, the third message includes a second CA combination list; or, an RRC connection establishment request is sent to the network device, and the RRC connection establishment request includes the second CA combination list; or, an RRC connection reestablishment request is sent to the network device ,
  • the RRC connection reestablishment request
  • the receiving unit is configured to receive the CA information of the cell sent by the network device, including: receiving a system message sent by the network device, the system message carrying the CA information of the cell; the sending unit also After the receiving unit receives the system message sent by the network device, and before sending the second CA combination list to the network device, the sending unit sends indication information to the network device, which is used to notify the network device to query the terminal's capabilities;
  • the receiving unit is further configured to receive a terminal capability query request sent by the network device according to the instruction information;
  • the sending unit is configured to send a second CA combination list to the network device, including: according to the terminal capability query request sent by the network device
  • the network device sends a terminal capability information message, and the terminal capability information message includes a second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • the receiving unit is configured to receive CA information of a cell sent by a network device, including: receiving a fifth message newly defined in a protocol sent by the network device, the fifth message carrying the CA information of the cell.
  • an embodiment of the present invention provides a network device, including: a sending unit, configured to send CA information of a cell to a terminal, the CA information including a list of CA frequency bands where a secondary cell of the cell is located or a first CA supported by the cell Combination list; receiving unit, for receiving the second CA combination list sent by the terminal, the second CA combination list is determined by the terminal according to the CA information sent by the network device and the CA combination supported by the terminal, and the second CA combination list is used by the network device Determine the CA capabilities of the terminal.
  • the cell includes a cell that the terminal is ready to access or is accessing.
  • the sending unit is configured to send the CA information of the cell to the terminal, including: sending a radio resource control RRC connection establishment message to the terminal, the RRC connection establishment message carrying the CA information of the cell.
  • the receiving unit is configured to receive a second CA combination list sent by the terminal, including: receiving an RRC connection establishment complete message sent by the terminal, the RRC connection establishment complete message carrying the second CA combination list; or, receiving terminal capability information sent by the terminal Message, the terminal capability information message carries a second CA combination list; or, a first message newly defined in the protocol sent by the terminal is received, and the first message includes the second CA combination list.
  • the sending unit is used to send the CA information of the cell to the terminal, including: sending an RRC connection establishment message to the terminal, the RRC connection establishment message carrying the CA information of the cell; the receiving unit is also used to After the sending unit sends an RRC connection establishment message to the terminal, before the receiving unit receives the second CA combination list sent by the terminal, it receives the indication information sent by the terminal, which is used to notify the network device to query the terminal's capabilities; the sending unit Is also used to send a terminal capability query request to the terminal according to the instruction information; the receiving unit is used to receive a second CA combination list sent by the terminal, including: receiving a terminal capability information message sent by the terminal, the terminal capability information message Including the second CA combination list.
  • the sending unit is configured to send the CA information of the cell to the terminal, including sending an RRC connection reestablishment message to the terminal, and the RRC connection reestablishment message carries the CA information of the cell.
  • the receiving unit is configured to receive the second CA combination list sent by the terminal, including: receiving the RRC connection re-establishment completion message sent by the terminal, the RRC connection re-establishment completion message carrying the second CA combination list; or, receiving the newly defined protocol in the protocol sent by the terminal
  • the second message includes a second CA combination list.
  • the sending unit is configured to send the CA information of the cell to the terminal, including sending an RRC connection reestablishment message to the terminal, and the RRC connection reestablishment message carries the CA information of the cell.
  • the receiving unit is further configured to receive the indication information sent by the terminal before the receiving unit sends the RRC connection reestablishment message to the terminal, and before the second CA combination list sent by the terminal, the indication information is used to notify the network
  • the device queries the capabilities of the terminal.
  • the sending unit is also used to send a terminal capability query request to the terminal.
  • the receiving unit is configured to receive a second CA combination list sent by the terminal, including: receiving a terminal capability information message sent by the terminal, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • the sending unit is configured to send the CA information of the cell to the terminal, including: sending a system message to the terminal, the system message carrying the CA information of the cell.
  • the receiving unit is configured to receive the second CA combination list sent by the terminal, including: receiving an RRC connection establishment complete message sent by the terminal, the RRC connection establishment complete message carrying the second CA combination list; or, receiving the RRC connection reestablishment sent by the terminal Completion message, the RRC connection re-establishment completion message carries the second CA combination list; or, the terminal capability information message sent by the terminal is received, and the terminal capability information message includes the second CA combination list; or, the newly defined third protocol of the protocol sent by the terminal is received Message, the third message includes a second CA combination list; or, receives an RRC connection establishment request sent by the terminal, and the RRC connection establishment request includes the second CA combination list; or, receives the terminal sending RRC connection reestablishment request, the RRC connection reestablishment request includes the second CA combination list
  • the sending unit is used to send the CA information of the cell to the terminal, including: sending a system message to the terminal, the system message carrying the CA information of the cell; the receiving unit is also used to After the sending unit sends a system message to the terminal, before the receiving unit receives the second CA combination list sent by the terminal, it receives the indication information sent by the terminal, and the indication information is used to notify the network device to query the terminal's capabilities; the sending unit also Used to send a terminal capability query request to the terminal according to the indication information; the receiving unit is used to receive a second CA combination list sent by the terminal, including: receiving a terminal capability information message sent by the terminal, the terminal capability information message including the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • the network device sending the CA information of the cell to the terminal includes: the network device sending a fifth message newly defined in the protocol to the terminal, the fifth message carrying the CA information of the cell.
  • an embodiment of the present invention provides a terminal, including: a receiving unit, configured to receive CA information of a second cell sent by a first cell through a first network device, where the CA information includes a location of a secondary cell of the second cell The list of CA frequency bands or the first CA combination list supported by the second cell; the sending unit is used to send a second CA combination list to the second network device.
  • the second CA combination list is based on the CA information of the second cell and the terminal support
  • the second CA combination list is used by the second network device to determine the CA capability of the terminal.
  • the terminal in a mobile handover scenario, the terminal combines the CA information of the second cell after handover and the CA combination supported by the terminal to determine the CA combination list, and the number of CA combinations included in the determined CA combination list is less than It is equal to the number of all CA combinations supported by the terminal itself. Therefore, the terminal can reduce the number of reported CA combinations, avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and ensure the success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is the CA frequency band where the second cell and its secondary cell are located after the handover or the CA combination supported by the second cell itself.
  • the CA combination reported by the terminal is based on the second cell after the handover If the actual configuration is reported, the matching between the CA combination reported by the terminal and the CA combination supported by the cell can be improved. In addition, if the operator updates the CA band combination configuration that it supports, the terminal can also be fully adaptive without synchronization on the terminal side, which improves the adaptability of communication.
  • the first cell is a cell where the terminal is currently located
  • the second cell is a cell to which the terminal is prepared to switch.
  • the first network device and the second network device are different network devices.
  • the embodiment of the present invention relates to cell handover across network devices.
  • the first network device and the second network device are the same network device, and the embodiment of the present invention relates to cell handover in the same network device.
  • the receiving unit is configured to receive CA information of the second cell sent by the first cell through the first network device, including: receiving RRC connection reconfiguration sent by the first cell through the first network device Message, the RRC connection reconfiguration message carries the CA information of the second cell.
  • the sending unit is configured to send a second CA combination list to the second network device, including: sending an RRC connection reconfiguration completion message to the second network device, the RRC connection reconfiguration completion message carrying the second CA combination list; or, to The second network device sends a fourth message newly defined in the protocol, where the fourth message carries the second CA combination list.
  • the receiving unit is configured to receive CA information of the second cell sent by the first cell through the first network device, including: receiving RRC connection reconfiguration sent by the first cell through the first network device Message, the RRC connection reconfiguration message carries the CA information of the second cell.
  • the sending unit is further configured to send the second network device before sending the second CA combination list to the second network device after the receiving unit receives the RRC connection reconfiguration message sent by the first network device Indication information, which is used to notify the second network device to query the capabilities of the terminal.
  • the receiving unit is further configured to receive a terminal capability query request sent by the second network device according to the instruction information.
  • the sending unit is configured to send a second CA combination list to the second network device, including: sending a terminal capability information message to the second network device according to the terminal capability query request, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • an embodiment of the present invention provides a network device.
  • the network device is a first network device.
  • the first network device includes: a determining unit configured to determine CA information of a second cell.
  • the CA information includes the first A list of CA frequency bands where the secondary cell of the second cell is located or a first CA combined list supported by the second cell; a sending unit, configured to send CA information to the terminal on the first cell.
  • the terminal in a mobile handover scenario, the terminal combines the CA information of the second cell after handover and the CA combination supported by the terminal to determine the CA combination list, and the number of CA combinations included in the determined CA combination list is less than It is equal to the number of all CA combinations supported by the terminal itself.
  • the terminal can reduce the number of reported CA combinations, avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and ensure the success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is the CA frequency band where the second cell and its secondary cell are located after the handover or the CA combination supported by the second cell itself.
  • the CA combination reported by the terminal is based on the second cell after the handover If the actual configuration is reported, the matching between the CA combination reported by the terminal and the CA combination supported by the cell can be improved.
  • the terminal can also be fully adaptive, and there is no need to synchronize on the terminal side, which improves the adaptability of communication.
  • the first cell is a cell where the terminal is currently located
  • the second cell is a cell to which the terminal is prepared to switch.
  • the sending unit is configured to send the CA information of the second cell to the terminal, including: sending an RRC connection reconfiguration message to the terminal, and the RRC connection reconfiguration message carries the CA information of the second cell.
  • an embodiment of the present invention provides a network device.
  • the network device is a second network device.
  • the second network device includes: a receiving unit configured to receive a second CA combination list sent by a terminal.
  • the second The CA combination list is determined by the terminal according to the CA information of the second cell and the CA combination supported by the terminal.
  • the second CA combination list is used by the second network device to determine the CA capability of the terminal.
  • the terminal in a mobile handover scenario, the terminal combines the CA information of the second cell after handover and the CA combination supported by the terminal to determine the CA combination list, and the number of CA combinations included in the determined CA combination list is less than It is equal to the number of all CA combinations supported by the terminal itself. Therefore, the terminal can reduce the number of reported CA combinations, avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and ensure the success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is the CA frequency band where the second cell and its secondary cell are located after the handover or the CA combination supported by the second cell itself.
  • the CA combination reported by the terminal is based on the second cell after the handover
  • the actual configuration reported can improve the match between the CA combination reported by the terminal and the CA combination supported by the cell.
  • the terminal can also be fully adaptive without synchronization on the terminal side, which improves the adaptability of communication.
  • the first cell is a cell where the terminal is currently located
  • the second cell is a cell to which the terminal is prepared to switch.
  • the receiving unit is configured to receive a second CA combination list sent by the terminal, including: receiving an RRC connection reconfiguration completion message sent by the terminal, and the RRC connection reconfiguration completion message carrying the second CA combination list Or, receive a fourth message newly defined in the protocol sent by the terminal, the fourth message carrying the second CA combination list.
  • the receiving unit is further configured to receive the indication information sent by the terminal before receiving the second CA combination list sent by the terminal, and the indication information is used to notify the second network device to query the capability of the terminal.
  • the second network device further includes a sending unit configured to send a terminal capability query request to the terminal according to the indication information.
  • the receiving unit is configured to receive a second CA combination list sent by the terminal, including: receiving a terminal capability information message sent by the terminal, and the terminal capability information message includes the second CA combination list.
  • first message “second message”, “third message”, “fourth message”, “fifth message”, etc. are only for distinguishing, in practical applications, these The message can be the same message.
  • an embodiment of the present invention provides a terminal, including: a processor, a memory, and a transceiver, the processor, the memory, and the transceiver are connected to each other, and the memory is used to store program code,
  • the processor is used to call the program code in the memory to perform the following operations: receive the CA information of the cell sent by the network device through the transceiver, and the CA information includes a list of CA frequency bands where the secondary cell of the cell is located or the first A list of CA combinations.
  • the second CA combination list is determined by the terminal according to the CA information sent by the network device and the CA combination supported by the terminal, and the second CA combination list is used by the network device to determine the terminal's CA capabilities.
  • the cell includes a cell that the terminal is ready to access or is accessing.
  • the processor receives the CA information of the cell sent by the network device through the transceiver, including: receiving the radio resource control RRC connection establishment message sent by the network device through the transceiver, the RRC connection establishment message carries CA information.
  • the processor sends the second CA combination list to the network device through the transceiver, including: sending an RRC connection establishment complete message to the network device through the transceiver, and the RRC connection establishment complete message carries the second CA combination list;
  • the transceiver sends a terminal capability information message to a network device, and the terminal capability information message carries a second CA combination list; or, the transceiver sends a first message newly defined in the protocol to the network device, the first message including the first Two CA combination list.
  • the processor receives the CA information of the cell sent by the network device through the transceiver, including: receiving the RRC connection establishment message sent by the network device through the transceiver, and the RRC connection establishment message carries the cell's CA information; after the processor receives the RRC connection establishment message sent by the network device through the transceiver, and before sending the second CA combination list to the network device through the transceiver, the processor is further used to: send the network to the network through the transceiver The device sends indication information, which is used to notify the network device to query the terminal's capability; receiving the terminal capability query request sent by the network device according to the indication information through the transceiver; and the processor sending the second CA combination to the network device through the transceiver
  • the list includes: sending a terminal capability information message to the network device according to the terminal capability query request sent by the network device through the transceiver, and the terminal capability information message includes a second CA combination list.
  • the processor receives the CA information of the cell sent by the network device through the transceiver, including: receiving the RRC connection reestablishment message sent by the network device through the transceiver, and the RRC connection reestablishment message carries the CA of the cell information.
  • the processor sending the second CA combination list to the network device through the transceiver includes: sending an RRC connection re-establishment completion message to the network device through the transceiver, and the RRC connection re-establishment completion message carries the second CA combination list;
  • the transceiver sends a second message newly defined in the protocol to the network device, and the second message includes a second CA combination list.
  • the processor receives the CA information of the cell sent by the network device through the transceiver, including: receiving the RRC connection reestablishment message sent by the network device through the transceiver, and the RRC connection reestablishment message carries the CA of the cell information.
  • the processor is further configured to send an instruction to the network device through the transceiver Information, the indication information is used to notify the network device to query the terminal's capability.
  • the processor receives the terminal capability query request sent by the network device according to the instruction information through the transceiver.
  • the processor sending the second CA combination list to the network device through the transceiver includes: sending the terminal capability information message to the network device according to the terminal capability query request sent by the network device through the transceiver, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • the processor receiving the CA information of the cell sent by the network device through the transceiver includes: receiving the system message sent by the network device through the transceiver, the system message carrying the CA information of the cell.
  • the processor sends the second CA combination list to the network device through the transceiver, including: sending an RRC connection establishment complete message to the network device through the transceiver, and the RRC connection establishment complete message carries the second CA combination list;
  • the transceiver sends an RRC connection reestablishment complete message to the network device, and the RRC connection reestablishment complete message carries the second CA combination list; or, sends the terminal capability information message to the network device through the transceiver, and the terminal capability information message includes the second CA Combination list; or, a third message newly defined by the protocol is sent to the network device through the transceiver, and the third message includes a second CA combination list; or, an RRC connection establishment request is sent to the network device through the transceiver,
  • the RRC connection establishment request
  • the processor receives the CA information of the cell sent by the network device through the transceiver, including: receiving the system message sent by the network device through the transceiver, the system message carrying the CA information of the cell; processing After the receiver receives the system message sent by the network device through the transceiver, and before sending the second CA combination list to the network device through the transceiver, the processor is further configured to send instruction information to the network device through the transceiver, indicating The information is used to notify the network device to query the capabilities of the terminal; receiving the terminal capability query request sent by the network device according to the indication information through the transceiver; and the processor sending the second CA combination list to the network device through the transceiver, including: The transceiver sends a terminal capability information message to the network device according to the terminal capability query request sent by the network device, where the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA
  • the processor receiving the CA information of the cell sent by the network device through the transceiver includes: receiving the fifth message newly defined in the protocol sent by the network device through the transceiver, the first Five messages carry the CA information of the cell.
  • an embodiment of the present invention provides a network device, a processor, a memory, and a transceiver.
  • the processor, the memory, and the transceiver are connected to each other.
  • the memory is used to store program code.
  • the processor is used to call the program code in the memory to perform the following operations: send the CA information of the cell to the terminal through the transceiver, the CA information includes a list of CA frequency bands where the secondary cell of the cell is located or the first CA combination supported by the cell A list; receiving a second CA combination list sent by the terminal through the transceiver, the second CA combination list is determined by the terminal according to the CA information sent by the network device and the CA combination supported by the terminal, and the second CA combination list is used for network device determination CA capability of the terminal.
  • the cell includes a cell that the terminal is ready to access or is accessing.
  • the processor sending the CA information of the cell to the terminal through the transceiver includes: sending a radio resource control RRC connection establishment message to the terminal through the transceiver, the RRC connection establishment message carrying the CA information of the cell .
  • the processor receives the second CA combination list sent by the terminal through the transceiver, including: receiving the RRC connection establishment complete message sent by the terminal through the transceiver, and the RRC connection establishment complete message carries the second CA combination list;
  • the transceiver receives the terminal capability information message sent by the terminal, and the terminal capability information message carries the second CA combination list; or, the transceiver receives the first message newly defined in the protocol sent by the terminal, and the first message includes the first Two CA combination list.
  • the processor sending the CA information of the cell to the terminal through the transceiver includes: sending an RRC connection establishment message to the terminal through the transceiver, the RRC connection establishment message carrying the CA information of the cell; processing After the transceiver sends an RRC connection establishment message to the terminal through the transceiver, and before receiving the second CA combination list sent by the terminal through the transceiver, the processor is further configured to: receive the instruction information sent by the terminal through the transceiver, indicating The information is used to notify the network device to query the terminal's capabilities; the terminal sends a terminal capability query request to the terminal according to the instruction information through the transceiver; and the processor receives the second CA combination list sent by the terminal through the transceiver, including: The transceiver receives the terminal capability information message sent by the terminal, and the terminal capability information message includes the second CA combination list.
  • the processor sending the CA information of the cell to the terminal through the transceiver includes: sending an RRC connection reestablishment message to the terminal through the transceiver.
  • the RRC connection reestablishment message carries the CA information of the cell.
  • the processor receives the second CA combination list sent by the terminal through the transceiver, including: receiving the RRC connection re-establishment complete message sent by the terminal through the transceiver, and the RRC connection re-establishment complete message carries the second CA combination list;
  • the transceiver receives a second message newly defined in the protocol sent by the terminal, and the second message includes a second CA combination list.
  • the processor sending the CA information of the cell to the terminal through the transceiver includes: sending an RRC connection reestablishment message to the terminal through the transceiver.
  • the RRC connection reestablishment message carries the CA information of the cell.
  • the processor is further configured to: receive the instruction information sent by the terminal through the transceiver, The indication information is used to notify the network device to query the capabilities of the terminal.
  • the processor sends a terminal capability query request to the terminal through the transceiver.
  • the processor receiving the second CA combination list sent by the terminal through the transceiver includes: receiving the terminal capability information message sent by the terminal through the transceiver, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • the processor sending the CA information of the cell to the terminal through the transceiver includes: sending a system message to the terminal through the transceiver, the system message carrying the CA information of the cell.
  • the processor receives the second CA combination list sent by the terminal through the transceiver, including: receiving the RRC connection establishment complete message sent by the terminal through the transceiver, and the RRC connection establishment complete message carries the second CA combination list;
  • the transceiver receives the RRC connection re-establishment complete message sent by the terminal, and the RRC connection re-establishment complete message carries the second CA combination list; or, receives the terminal capability information message sent by the terminal through the transceiver, and the terminal capability information message includes the second CA A combination list; or, a third message newly defined by the protocol sent by the terminal and received by the transceiver, including a second CA combination list; or, an RRC connection establishment sent by the terminal and received by the transceiver Request, the RRC connection establishment request includes the second CA combination list
  • the processor sending the CA information of the cell to the terminal through the transceiver includes: sending a system message to the terminal through the transceiver, the system message carrying the CA information of the cell; After the transceiver sends the system message to the terminal, and before receiving the second CA combination list sent by the terminal through the transceiver, the processor is further configured to: receive the indication information sent by the terminal through the transceiver, and the indication information is used to notify the network device Query the capabilities of the terminal; send a terminal capability query request to the terminal through the transceiver according to the instruction information; the processor receives the second CA combination list sent by the terminal through the transceiver, including: receiving the terminal sent by the terminal through the transceiver A capability information message, where the terminal capability information message includes a second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • the processor sending the CA information of the cell to the terminal through the transceiver includes: sending a fifth message newly defined in the protocol to the terminal through the transceiver, the fifth message carrying the cell CA information.
  • an embodiment of the present invention provides a terminal, including: a processor, a memory, and a transceiver, the processor, the memory, and the transceiver are connected to each other, and the memory is used to store program code,
  • the processor is used to call the program code in the memory to perform the following operations: receiving, by the transceiver, the CA information of the second cell sent by the first cell through the first network device, the CA information including the secondary cell of the second cell The list of CA frequency bands where it is located or the first CA combination list supported by the second cell.
  • the second CA combination list is determined by the terminal according to the CA information of the second cell and the CA combination supported by the terminal, and the second CA combination list is used for the second network
  • the device determines the CA capabilities of the terminal.
  • the terminal in a mobile handover scenario, the terminal combines the CA information of the second cell after handover and the CA combination supported by the terminal to determine the CA combination list, and the number of CA combinations included in the determined CA combination list is less than It is equal to the number of all CA combinations supported by the terminal itself. Therefore, the terminal can reduce the number of reported CA combinations, avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and ensure the success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is the CA frequency band where the second cell and its secondary cell are located after the handover or the CA combination supported by the second cell itself.
  • the CA combination reported by the terminal is based on the second cell after the handover If the actual configuration is reported, the matching between the CA combination reported by the terminal and the CA combination supported by the cell can be improved.
  • the terminal can also be fully adaptive without synchronizing on the terminal side, which improves the adaptability of communication.
  • the first cell is a cell where the terminal is currently located
  • the second cell is a cell to which the terminal is prepared to switch.
  • the first network device and the second network device are different network devices.
  • the embodiment of the present invention relates to cell handover across network devices.
  • the first network device and the second network device are the same network device, and the embodiment of the present invention relates to cell handover in the same network device.
  • the processor receiving the CA information of the second cell sent by the first cell through the first network device through the transceiver includes: receiving the first cell sent through the first network device through the transceiver RRC connection reconfiguration message, the RRC connection reconfiguration message carries the CA information of the second cell.
  • the processor sending the second CA combination list to the second network device through the transceiver includes: sending an RRC connection reconfiguration completion message to the second network device through the transceiver, the RRC connection reconfiguration completion message carrying the second CA combination A list; or, sending a fourth message newly defined in the protocol to the second network device through the transceiver, the fourth message carrying a second CA combination list.
  • the processor receiving the CA information of the second cell sent by the first cell through the first network device through the transceiver includes: receiving the first cell sent through the first network device through the transceiver RRC connection reconfiguration message, the RRC connection reconfiguration message carries the CA information of the second cell.
  • the processor is further configured to: through the transceiver Indication information is sent to the second network device, and the instruction information is used to notify the second network device to query the capabilities of the terminal; receiving the terminal capability query request sent by the second network device according to the indication information through the transceiver.
  • the processor sending the second CA combination list to the second network device through the transceiver includes: sending the terminal capability information message to the second network device according to the terminal capability query request through the transceiver, and the terminal capability information message includes the second CA combination list.
  • the terminal triggers the network device to query the capability of the terminal, so that the terminal reports the second CA combination list to the network device.
  • an embodiment of the present invention provides a network device.
  • the network device is a first network device.
  • the first network device includes: a processor, a memory, and a transceiver.
  • the processor, the memory, and the The transceivers are connected to each other, the memory is used to store program code, and the processor is used to call the program code in the memory to perform the following operations: determine the CA information of the second cell, the CA information includes the location of the secondary cell of the second cell The CA frequency band list or the first CA combination list supported by the second cell.
  • the CA information is sent to the terminal on the first cell through the transceiver.
  • the terminal in a mobile handover scenario, the terminal combines the CA information of the second cell after handover and the CA combination supported by the terminal to determine the CA combination list, and the number of CA combinations included in the determined CA combination list is less than It is equal to the number of all CA combinations supported by the terminal itself. Therefore, the terminal can reduce the number of reported CA combinations, avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and ensure the success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is the CA frequency band where the second cell and its secondary cell are located after the handover or the CA combination supported by the second cell itself.
  • the CA combination reported by the terminal is based on the second cell after the handover If the actual configuration is reported, the matching between the CA combination reported by the terminal and the CA combination supported by the cell can be improved. In addition, if the operator updates the CA band combination configuration that it supports, the terminal can also be fully adaptive without synchronization on the terminal side, which improves the adaptability of communication.
  • the first cell is a cell where the terminal is currently located
  • the second cell is a cell to which the terminal is prepared to switch.
  • the processor sending the CA information of the second cell to the terminal through the transceiver includes: sending an RRC connection reconfiguration message to the terminal through the transceiver, the RRC connection reconfiguration message carrying the second cell CA information.
  • an embodiment of the present invention provides a network device.
  • the network device is a second network device.
  • the second network device includes: a processor, a memory, and a transceiver.
  • the processor, the memory, and the The transceivers are connected to each other, the memory is used to store program code, and the processor is used to call the program code in the memory to perform the following operations: receive a second CA combination list sent by the terminal through the transceiver, and the second CA combination The list is determined by the terminal according to the CA information of the second cell and the CA combination supported by the terminal.
  • the second CA combination list is used by the second network device to determine the CA capability of the terminal.
  • the terminal in a mobile handover scenario, the terminal combines the CA information of the second cell after handover and the CA combination supported by the terminal to determine the CA combination list, and the number of CA combinations included in the determined CA combination list is less than It is equal to the number of all CA combinations supported by the terminal itself. Therefore, the terminal can reduce the number of reported CA combinations, avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and ensure the success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is the CA frequency band where the second cell and its secondary cell are located after the handover or the CA combination supported by the second cell itself.
  • the CA combination reported by the terminal is based on the second cell after the handover
  • the actual configuration reported can improve the match between the CA combination reported by the terminal and the CA combination supported by the cell.
  • the terminal can also be fully adaptive without synchronization on the terminal side, which improves the adaptability of communication.
  • the first cell is a cell where the terminal is currently located
  • the second cell is a cell to which the terminal is ready to switch.
  • the processor receiving the second CA combination list sent by the terminal through the transceiver includes: receiving the RRC connection reconfiguration completion message sent by the terminal through the transceiver, and carrying the RRC connection reconfiguration completion message A second CA combination list; or, receiving, by the transceiver, a fourth message newly defined in the protocol sent by the terminal, the fourth message carrying the second CA combination list.
  • the processor before the processor receives the second CA combination list sent by the terminal through the transceiver, the processor is further configured to: receive the indication information sent by the terminal through the transceiver, and the indication information is used to notify the first 2.
  • the network device queries the capabilities of the terminal; sends a terminal capability query request to the terminal according to the instruction information through the transceiver.
  • the processor receiving the second CA combination list sent by the terminal through the transceiver includes: receiving the terminal capability information message sent by the terminal through the transceiver, and the terminal capability information message includes the second CA combination list.
  • an embodiment of the present invention provides a communication system.
  • the communication system includes: a terminal and a network device.
  • the terminal may be the terminal described in the sixth aspect or the eleventh aspect.
  • the network device may be the network device described in the seventh aspect or the twelfth aspect.
  • an embodiment of the present invention provides another communication system.
  • the communication system includes: a terminal, a first network device, and a second network device.
  • the terminal may be the terminal described in the eighth aspect or the thirteenth aspect.
  • the first network device may be the network device described in the ninth aspect or the fourteenth aspect.
  • the second network device may be the network device described in the above tenth or fifteenth aspect.
  • an embodiment of the present invention provides a communication chip.
  • the communication chip may include: a processor, and one or more interfaces coupled to the processor.
  • the processor may be used to call the implementation program of the method for determining the CA capability of the terminal provided in the first aspect from the memory, and execute the instructions contained in the program.
  • the interface may be used to output the data processing result of the processor.
  • an embodiment of the present invention provides another communication chip.
  • the communication chip may include: a processor, and one or more interfaces coupled to the processor.
  • the processor may be used to call the implementation program of the method for determining the CA capability of the terminal provided in the second aspect from the memory, and execute the instructions contained in the program.
  • the interface may be used to output the data processing result of the processor.
  • an embodiment of the present invention provides another communication chip.
  • the communication chip may include: a processor, and one or more interfaces coupled to the processor.
  • the processor may be used to call the implementation program of the method for determining the CA capability of the terminal provided in the third aspect from the memory, and execute the instructions contained in the program.
  • the interface may be used to output the data processing result of the processor.
  • an embodiment of the present invention provides another communication chip.
  • the communication chip may include: a processor, and one or more interfaces coupled to the processor.
  • the processor may be used to call the implementation program of the method for determining the CA capability of the terminal provided in the fourth aspect from the memory, and execute the instructions contained in the program.
  • the interface may be used to output the data processing result of the processor.
  • an embodiment of the present invention provides another communication chip.
  • the communication chip may include: a processor, and one or more interfaces coupled to the processor.
  • the processor may be used to call an implementation program of the method for determining the CA capability of the terminal provided in the fifth aspect from the memory, and execute the instructions contained in the program.
  • the interface may be used to output the data processing result of the processor.
  • an embodiment of the present invention provides a computer-readable storage medium having instructions stored on the readable storage medium, which when executed on a processor, causes the processor to execute the determination terminal described in the first aspect above
  • an embodiment of the present invention provides a computer program product containing instructions that, when run on a processor, cause the processor to execute the method for determining the CA capability of a terminal described in the first aspect above, or execute the above
  • the method for determining the terminal CA capability described in the second aspect, or the method for determining the terminal CA capability described in the third aspect above, or the method for determining the terminal CA capability described in the fourth aspect above, or the method described in the fifth aspect above Method to determine the CA capability of the terminal.
  • FIG. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present invention
  • 2A is a schematic diagram of discontinuous multi-carrier aggregation provided by an embodiment of the present invention.
  • 2B is a partial flowchart of an RRC connection establishment process provided by an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for determining the CA capability of a terminal according to an embodiment of the present invention
  • 3A is a partial flowchart of an RRC connection reestablishment process provided by an embodiment of the present invention
  • FIG. 4 is a flowchart of another method for determining a carrier aggregation capability of a terminal provided by an embodiment of the present invention.
  • FIG. 5 is a flowchart of another method for determining a carrier aggregation capability of a terminal according to an embodiment of the present invention
  • 5A is a partial flowchart of an RRC connection reconfiguration process provided by an embodiment of the present invention.
  • FIG. 6 is a flowchart of another method for determining a carrier aggregation capability of a terminal provided by an embodiment of the present invention.
  • Embodiment 7 is a schematic diagram of Embodiment 1 of a process for determining a CA capability of a terminal provided by an embodiment of the present invention
  • Embodiment 8 is a schematic diagram of Embodiment 2 of a process for determining a CA capability of a terminal provided by an embodiment of the present invention
  • Embodiment 9 is a schematic diagram of Embodiment 3 of a process for determining a CA capability of a terminal provided by an embodiment of the present invention.
  • Embodiment 4 is a schematic diagram of Embodiment 4 of a process for determining a CA capability of a terminal provided by an embodiment of the present invention
  • Embodiment 11 is a schematic diagram of Embodiment 5 of a process for determining a terminal CA capability provided by an embodiment of the present invention
  • Embodiment 12 is a schematic diagram of Embodiment 6 of a process for determining a CA capability of a terminal provided by an embodiment of the present invention
  • Embodiment 7 is a schematic diagram of Embodiment 7 of a process for determining a CA capability of a terminal provided by an embodiment of the present invention
  • Embodiment 8 is a schematic diagram of Embodiment 8 of a process for determining a CA capability of a terminal provided by an embodiment of the present invention
  • 15 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • 16 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present invention.
  • FIG. 17 is a schematic diagram of a logical structure of a network device according to an embodiment of the present invention.
  • FIG. 18 is a schematic diagram of a hardware structure of a network device provided by an embodiment of the present invention.
  • FIG. 19 is a schematic structural diagram of a communication chip provided by an embodiment of the present invention.
  • 20 is a schematic structural diagram of another communication chip provided by an embodiment of the present invention.
  • the wireless communication system involved in the embodiments of the present application is first introduced.
  • FIG. 1 shows a wireless communication system involved in an embodiment of the present application.
  • the wireless communication system 100 may work in an authorized frequency band or an unlicensed frequency band.
  • the wireless communication system 100 is not limited to a long term evolution (LTE) system, but may also be a 5G system, an NR system, etc., which will evolve in the future. It is understandable that the use of unlicensed frequency bands can increase the system capacity of the wireless communication system 100.
  • the wireless communication system 100 includes one or more network devices 101 and one or more terminal devices 103. among them:
  • the network device 101 can perform wireless communication with the terminal device 103 through one or more antennas. Each network device 101 can provide communication coverage for its corresponding coverage 107.
  • the coverage 107 corresponding to the network device 101 may be divided into multiple sectors, where one sector corresponds to a part of the coverage (not shown).
  • the network device 101 may be divided into one or more cells, and each cell has its own frequency band in which it is located, and different cells may have the same frequency band or different frequency bands. Among them, the sector is a geographical concept, and the cell is a logical concept.
  • the network device may include one or more cells, and for each cell, the network device may configure one or more secondary cells for each cell.
  • the primary cell (PCell) of the terminal device For a certain terminal device, only one cell among multiple cells on the network device is the primary cell (PCell) of the terminal device, and other cells may be all or part of the secondary cell (SCell) of the terminal.
  • the accessed cell is the terminal's primary cell.
  • the terminal needs to report the CA capabilities it supports (for example, CA combination list) to the network device.
  • the network device learns which frequency bands the terminal supports based on the CA capabilities reported by the terminal, and then selects several secondary cells for the terminal from the secondary cells of the terminal's primary cell as the terminal The secondary cell of the terminal.
  • the network device includes three cells, namely cell 1, cell 2 and cell 3, wherein the frequency band where cell 1 is located is band1, the frequency band where cell 2 is located is band2, and the frequency band where cell 3 is located is band3.
  • the network device pre-configures the secondary cell of cell 1 to include cell 2 and cell 3, and the secondary cell of cell 2 includes cell 1 and cell 3.
  • the cell that the terminal accesses when accessing the network is cell 1, and this cell 1 is the primary cell of the terminal.
  • the network device sends to the terminal the CA frequency bands (band2 and band3) where the secondary cells (ie, cell 2 and cell 3) of the primary cell are located. After receiving the CA frequency band, the terminal matches the CA combination it supports.
  • the CA combination list sent by the terminal to the network device includes band1+band2.
  • the network device learns the CA capability of the terminal according to the CA combination list reported by the terminal, and configures the cell 2 as the secondary cell of the terminal for the terminal.
  • the frequency band supported by the operator is different from the frequency band supported by the cell.
  • the frequency bands supported by the cell are a subset of the frequency bands supported by the operator.
  • the number of frequency bands supported by the cell is smaller than the frequency bands supported by the operator.
  • the frequency band (band) supported by an operator includes band1 to band10
  • the frequency band supported by a network device (such as a base station) deployed by the operator includes band1, band2, and band3, and the network device deploys cells in these three frequency bands
  • the frequency band of a certain cell is band1, which shows that the number of frequency bands supported by the cell is less than or equal to the number of frequency bands supported by the network device, and the number of frequency bands supported by the cell is less than the number of frequency bands supported by the operator.
  • the network device 101 may include: evolved Node B (evolved NodeB, eNB, or eNodeB), or next-generation Node B (gNB), and so on.
  • the wireless communication system 100 may include several different types of network devices 101, such as a macro base station (macro base station), a micro base station (micro base station), and so on.
  • the network device 101 may apply different wireless technologies, such as cell wireless access technology, or WLAN wireless access technology.
  • the terminal device 103 may be distributed throughout the wireless communication system 100, and may be stationary or mobile.
  • the terminal device 103 may include: a mobile device, a mobile station, a mobile unit, a wireless unit, a remote unit, a user agent, a mobile client, and so on.
  • the wireless communication system 100 may support multi-carrier (CA) aggregation technology.
  • Multi-carrier aggregation technology allows multiple continuous or discontinuous carriers on multiple frequency bands to be served together for terminal equipment 103, or multiple continuous or discontinuous carriers on a single frequency band to be served for terminal equipment 103 at the same time Services to provide higher peak rates and system throughput.
  • FIG. 2B it is a schematic diagram of discontinuous multi-carrier aggregation. Among them, carrier 1, carrier 2 and carrier 3 are different carriers on frequency band 1, carrier 4 is a carrier on frequency band 2, carrier 1, carrier 2, carrier 3 and carrier 4 are aggregated to obtain the system bandwidth of terminal device 103.
  • the terminal device 103 can transmit data to the network device 101 in the system bandwidth formed by aggregation.
  • the network device 101 may send a system message (SI) within its coverage 107, and the SI content is the same within the coverage 107 of the network device 101.
  • SI is divided into minimum SI (Minimum SI) and other SI (Other SI).
  • SIB system information blocks
  • PCell Primary cell
  • the primary cell is a cell working on the primary frequency band.
  • the UE performs the initial RRC connection establishment process in the cell, or starts the RRC connection re-establishment process.
  • the UE will select a suitable cell (such as the cell with the strongest signal), receive the system information of the cell, and prepare for attachment.
  • the UE will then establish an RRC connection with the cell.
  • a suitable cell such as the cell with the strongest signal
  • FIG. 2A For a schematic diagram of the RRC connection process, see FIG. 2A. among them:
  • Step 1 The UE sends a random access preamble (Preamble, Preamble) message (also called msg1) to a network device (such as gNB).
  • the Preamble message contains a random access preamble sequence preamble selected by the UE.
  • Step 2 After receiving the preamble sent by the UE, the network device sends an RRC random access response (also called msg2) to the UE in the random access response window.
  • RRC random access response also called msg2
  • Step 3 After receiving the RRC random access response, the UE sends an RRC connection establishment request (also called msg3) on the uplink resources allocated by the network device.
  • RRC connection establishment request also called msg3
  • Step 4 The network device sends an RRC connection establishment message (also called msg4) to the terminal.
  • RRC connection establishment message also called msg4
  • Step 5 After the contention resolution is completed, the UE establishes a signaling radio bearer according to the information in the RRC connection establishment message, and sends an RRC connection establishment complete message to the network device.
  • the network device After receiving the RRC connection establishment complete message, the network device triggers the core network to establish the control plane connection and the user plane connection of the terminal.
  • the network device may be divided into one or more cells, and the cell that establishes the RRC connection with the UE is the PCell.
  • Secondary cell A secondary cell is a cell that works on a secondary frequency band. Once the RRC connection is established, the network side can configure one or more secondary cells for the UE, and the secondary cells can provide the UE with additional wireless resources.
  • Serving cell A UE in RRC connected state, if no CA is configured, there is only one serving cell. If the UE is configured with CA, the serving cell set includes PCell and SCell.
  • CA Carrier aggregation
  • CC carrier units
  • the maximum bandwidth of each CC can be, for example 20MHz.
  • CA supports aggregation between different CCs. As shown in Figure 2B. Among them, adjacent CC aggregation in the same frequency band is supported. That is, the terminal can perform data transmission on adjacent carriers in the same frequency band. Support non-adjacent CC aggregation in the same frequency band. That is, the terminal can perform data transmission on non-adjacent carriers in the same frequency band. Support CC aggregation in different frequency bands.
  • the terminal can perform data transmission on carriers in different frequency bands.
  • the frequency band A in FIG. 2B can be understood as the frequency band where the primary cell of the UE is located, and the frequency band B can be understood as the frequency band where a certain secondary cell of the UE is located.
  • the frequency band for CA aggregation should be the primary and secondary relationship. That is, CA aggregation may be aggregation between adjacent or disconnected CCs in the frequency band where the primary cell is located, or between CCs in the frequency band where the primary cell is located and CCs in the frequency band where the secondary cell is located.
  • Source cell and target cell When the UE performs mobile handover, it is switched from one cell to another. Then, the cell connected before the UE handover is the source cell, and the cell connected after the UE handover is the target cell.
  • the source cell and the target cell may be different cells on the same base station (that is, cell switching of the same base station), or may be cells on two base stations (that is, cell switching across base stations), which is not limited in this application. It should be noted that both the source cell and the target cell should be understood as the primary cell.
  • the target base station may also configure one or more secondary cells for the UE.
  • the terminal when registering the network, the terminal sends the CA combination it supports to the serving base station, and the serving base station determines the CA combination capability of the terminal according to the CA combination reported by the terminal. And the serving base station saves the CA combination it supports in the received CA combination to the CA capability configuration table, activates one of the CA combinations, and sends the activation parameter to the terminal.
  • the terminal will gradually support CAs of 3 component carriers (CC), 4 CCs, and 5 CCs, and the long-term evolution (LTE) frequency bands supported by the terminal also As the number of CA combinations reported by the terminal increases exponentially, the complexity of frequency band combinations also increases.
  • CC component carriers
  • LTE long-term evolution
  • this application proposes a method for reporting the terminal capability. For example, when a terminal accesses a network, it receives CA information delivered by a network device, and the CA information is a CA combination or a list of CA frequency bands supported by the network device itself.
  • the terminal screens the CA information supported by the terminal itself based on the CA information delivered by the network device, selects CA combinations supported by the network device and also supports the terminal itself, and then reports the screened CA combination list to the network device. It avoids that the terminal only reports CA capabilities based on the CA combinations it supports, resulting in too many CA combinations being reported. In addition, since the CA combination reported by the terminal is supported by the network device, the success rate of the terminal's network access can be improved.
  • a method for determining the carrier aggregation capability of a terminal includes but is not limited to the following steps:
  • the network device sends the CA information of the cell to the terminal, and the terminal receives the CA information of the cell sent by the network device.
  • the CA information includes a list of CA frequency bands where the secondary cell of the cell is located.
  • the terminal sends a second CA combination list to the network device.
  • the network device receives the second CA combination list sent by the terminal.
  • the second CA combination list is a combination of the CA frequency band of the secondary cell of the cell and the CA combination supported by the terminal itself. Determined, the second CA combination list is used by the network device to determine the CA capability of the terminal.
  • the cell is a cell that the terminal is ready to access or is accessing. This cell can be understood as the main cell (PCell).
  • the secondary cell is a secondary cell configured in advance by the network device for the primary cell. For example, in the initial network access process, a cell that is ready to establish an RRC connection process with a terminal or has established an RRC connection process is the primary cell.
  • the PCell that has established an RRC connection with the terminal sends CA information to the terminal through the network device (eg, base station) where it is located.
  • the CA information includes a list of frequency bands where the secondary cell (SCell) configured by the network device for the PCell is located.
  • the CA information may also include the frequency band where the PCell is located.
  • the CA information may not include the frequency band where the PCell is located. Since the PCell is a cell that the terminal is planning to access or is accessing, the terminal knows the frequency band where the primary cell is located.
  • the second CA combination list sent by the terminal to the network device may be all combinations of CA combinations determined by the terminal based on the CA frequency band lists where the primary cell and the secondary cell are located and CA combinations supported by the terminal itself, or all combinations. Part of the combination. For example, a part of the combination of all the combinations has been reported before, so this time it is not necessary to report this part of the combination again.
  • the frequency band (band) where the primary cell is located is band1
  • the secondary cell configured by the network device for the primary cell includes two
  • the frequency bands where the two secondary cells are located are band2 and band3, respectively.
  • the primary cell sends band2 and band3 to the terminal through the network device where it is located.
  • the CA combination supported by the terminal itself includes band1+band2, band1+band3, band2+band4+band5, and band3+band4. Therefore, when matching and filtering CA combinations supported by the terminal, the terminal may perform filtering based on the three frequency bands where the primary cell and the secondary cell are located.
  • the second CA combination determined by the terminal includes band1+band2, band1+ band3. Therefore, the CA combination reported by the terminal is closely related to the current primary cell and the secondary cell of the primary cell, and the CA combination corresponding to the CA frequency band of other cells except the current primary cell and the secondary cell of the primary cell is eliminated. Compared with the prior art, the number of CA combinations reported by the UE in this application is reduced.
  • the above steps S301 and S302 may be implemented based on the RRC connection establishment process. Specifically, for a partial flowchart of the RRC connection establishment process, refer to FIG. 2A.
  • the network device may send the CA frequency band list where the secondary cell of the cell is located to the terminal through the RRC connection establishment message in step four.
  • the terminal may send the determined second CA combination list to the network device through the RRC connection establishment complete message in step 5.
  • the CA combination carried by the UE in the UE capability information message (such as UE-EUTRA-Capability message) sent to the network device is the second CA combination list.
  • the network device will actively send a UE capability query request to the terminal to request the UE to report its capability.
  • the network device may send the CA frequency band list where the secondary cell of the cell is located to the terminal through an RRC connection establishment message.
  • the network device will actively send a terminal capability query request to the terminal.
  • the terminal sends a terminal capability information message to the terminal according to the terminal capability query request, where the terminal capability information message includes the above-mentioned second CA combination list.
  • the terminal may also trigger the network device to query the capabilities of the UE.
  • the network device sends the CA frequency band list where the secondary cell of the cell is located to the terminal through an RRC connection establishment message, and after receiving the RRC connection establishment message, the terminal sends indication information to the network device, which is used to instruct the network device to query the UE Ability.
  • the network device After receiving the indication information, the network device sends a UE capability query request to the terminal, and after receiving the UE capability query request, the UE sends a UE capability information message (such as a UE-EUTRA-Capability message) to the network device, the UE capability information
  • the message carries the above-mentioned second CA combination list.
  • the terminal triggers the network device to query the terminal capability, so that the terminal reports the second CA combination list to the network device through the terminal capability information message.
  • the network device may send the CA frequency band list where the secondary cell of the cell is located to the terminal through an RRC connection establishment message, and the subsequent terminal may send the second CA combination list to the network device through a message newly defined in the protocol.
  • the above steps S301 and S302 may be implemented based on the RRC connection reestablishment process.
  • the process includes the following steps, where step one: the terminal sends an RRC connection reestablishment request to the network device.
  • the network device may send the CA frequency band list where the secondary cell of the cell is located to the terminal through the RRC connection reestablishment message in step two.
  • the terminal may send the determined second CA combination list to the network device through the RRC connection re-establishment completion message in step three.
  • the network device may send the CA frequency band list where the secondary cell of the cell is located to the terminal through an RRC connection reestablishment message, and the subsequent terminal may send the second CA combination list to the network device through a newly defined message in the protocol.
  • the network device sends a list of CA frequency bands where the secondary cell of the cell is located to the terminal through an RRC connection reestablishment message. After receiving the RRC connection reestablishment message, the terminal sends indication information to the network device, which is used to instruct the network device to query the UE Ability.
  • the network device After receiving the indication information, the network device sends a UE capability query request to the terminal, and after receiving the UE capability query request, the UE sends a UE capability information message (such as a UE-EUTRA-Capability message) to the network device, the UE capability information
  • a UE capability information message (such as a UE-EUTRA-Capability message) to the network device, the UE capability information
  • the message carries the above-mentioned second CA combination list.
  • the network device sends the list of CA frequency bands where the secondary cell of the cell is located to the terminal through a system message.
  • the network device carries the list of CA frequency bands where the secondary cell of the cell is located in the SIB message and sends it to the UE.
  • the UE determines the second CA combination list.
  • the terminal may report the second CA combination list to the network device through the RRC connection establishment request, the RRC connection establishment complete message, the RRC connection reestablishment request, the RRC connection reestablishment complete message, or the UE capability information message.
  • the network device may actively query the UE capability, or the terminal may trigger the network device to query the UE capability.
  • the terminal needs to report the second CA combination list again after determining the second CA combination list based on the CA frequency band list issued by the network device and the CA combination supported by the terminal Give network equipment to update the capabilities of the UE.
  • the terminal may trigger the network device to query the capabilities of the UE, and the terminal sends indication information to the network device to instruct the network device to query the capabilities of the UE.
  • the network device After receiving the indication information, the network device sends a UE capability query request to the terminal.
  • the terminal After receiving the UE capability query request, the terminal carries the second CA combination list in the UE capability information message and sends it to the network device.
  • the terminal reports the newly determined second CA combination list to the network device when the CA combination list that has changed from the previously reported CA combination list changes.
  • the network device may send the list of CA frequency bands where the secondary cell of the cell is located to the terminal through a message newly defined in the protocol.
  • the network device After receiving the second CA combination list sent by the terminal, the network device learns the CA capability of the terminal according to the second CA combination list, and then can select several secondary cells from the secondary cells configured as the primary cell as the secondary cell of the terminal .
  • the network device includes three cells, namely cell 1, cell 2 and cell 3, wherein the frequency band where cell 1 is located is band1, the frequency band where cell 2 is located is band2, and the frequency band where cell 3 is located is band3.
  • the network device pre-configures the secondary cell of cell 1 to include cell 2 and cell 3, and the secondary cell of cell 2 includes cell 1 and cell 3.
  • the cell that the terminal accesses when accessing the network is cell 1, and this cell 1 is the primary cell of the terminal.
  • the CA information sent by the network device to the terminal includes the CA frequency bands (ie, band2 and band3) where the secondary cells (ie, cell 2 and cell 3) of the primary cell (ie, cell 1) are located. After receiving the CA frequency band, the terminal matches the CA combination.
  • the second CA combination list sent by the terminal to the network device includes band1+band2.
  • the network device learns that the terminal supports band1+band2 and does not support band1+band3 according to the second CA combination list reported by the terminal, and configures the cell 2 as the secondary cell of the terminal for the terminal.
  • the terminal determines the CA combination list by combining the CA frequency band where the secondary cell of the cell being accessed or has accessed and the CA combination supported by the terminal itself.
  • the CA combination list included in the determined CA combination list The number is less than or equal to the number of all CA combinations supported by the terminal itself. Therefore, the terminal can reduce the number of CA combinations reported to avoid compatibility problems caused by the network device unable to resolve all CA combinations reported by the terminal, ensuring the success of terminal access to the network rate.
  • the CA combination reported by the terminal to the network device is located in the CA frequency band where the cell and its secondary cell are located.
  • the CA combination reported by the terminal is reported according to the actual configuration of the network device, which can improve the CA combination reported by the terminal and the cell The matching degree of supported CA combinations.
  • the terminal can also be fully adaptive, without synchronizing on the terminal side, which improves the adaptability of communication.
  • FIG. 4 it is a flowchart of another method for determining a carrier aggregation capability of a terminal provided by an embodiment of the present invention.
  • the method includes but is not limited to the following steps:
  • the network device sends the CA information of the cell to the terminal, and the terminal receives the CA information of the cell sent by the network device.
  • the CA information includes a first CA combination list supported by the cell.
  • the terminal sends a second CA combination list to the network device.
  • the network device receives the second CA combination list sent by the terminal.
  • the second CA combination list is determined by the terminal according to the first CA combination list supported by the cell and the CA combination supported by the terminal itself.
  • the second CA combination list is used by the network device to determine the CA capabilities of the terminal.
  • the cell is a cell that the terminal is ready to access or is accessing.
  • This cell can be understood as the main cell (PCell).
  • PCell main cell
  • a cell that is ready to establish an RRC connection process with a terminal or has established an RRC connection process is the primary cell.
  • the PCell that has established an RRC connection with the terminal sends CA information to the terminal through the network device (eg, base station) where it is located.
  • the CA information includes a list of CA combinations supported by the PCell.
  • the second CA combination list sent by the terminal to the network device may be all combinations of the CA combinations determined by the terminal based on the first CA combination list supported by PCell and the CA combinations supported by the terminal itself, or may be a part of the total combinations combination. For example, a part of the combination of all the combinations has been reported before, so this time it is not necessary to report this part of the combination again.
  • the frequency band (band) where the primary cell is located is band1
  • the secondary cell configured by the network device for the primary cell includes two
  • the frequency bands where the two secondary cells are located are band2 and band3, respectively.
  • the first CA combination list supported by the primary cell includes band1+band2, band2+band1, band1+band3, and band1+band2+band3.
  • the CA combination supported by the terminal itself includes band1+band2, band1+band3, band2+band4+band5, and band3+band4.
  • the terminal may perform filtering based on the first CA combination list. Therefore, the second CA combination determined by the terminal includes band1+band2 and band1+band3.
  • the CA combinations reported by the UE will include band1+band2, band1+band3, band2+band4+band5, band3+band4, and the number of CA combinations reported by the UE using this application is reduced.
  • the above steps S401 and S402 may be implemented based on the RRC connection establishment process. Specifically, for a partial flowchart of the RRC connection establishment process, refer to the foregoing FIG. 2A.
  • the network device may send the CA combination list supported by the cell to the terminal through the RRC connection establishment message in step four.
  • the terminal may send the determined second CA combination list to the network device through the RRC connection establishment complete message in step 5.
  • the CA combination carried by the UE in the UE capability information message (such as the UE-EUTRA-Capability message) sent to the network device is the second CA combination list.
  • the network device will actively send a UE capability query request to the terminal to request the UE to report its capability.
  • the network device may send the first CA combination list supported by the cell to the terminal through an RRC connection establishment message.
  • the network device will actively send a terminal capability query request to the terminal. Sending a terminal capability information message to the terminal according to the terminal capability query request, where the terminal capability information message includes the above-mentioned second CA combination list.
  • the terminal may also trigger the network device to query the capabilities of the UE.
  • the network device sends the first CA combination list supported by the cell to the terminal through an RRC connection establishment message.
  • the terminal After receiving the RRC connection establishment message, the terminal sends indication information to the network device.
  • the indication information is used to instruct the network device to query the UE's ability.
  • the network device After receiving the indication information, the network device sends a UE capability query request to the terminal, and after receiving the UE capability query request, the UE sends a UE capability information message (such as a UE-EUTRA-Capability message) to the network device, the UE capability information
  • the message carries the above-mentioned second CA combination list.
  • the terminal triggers the network device to query the terminal capability, so that the terminal reports the second CA combination list to the network device through the terminal capability information message.
  • the network device may send the first CA combination list supported by the cell to the terminal through an RRC connection establishment message, and the subsequent terminal may send the second CA combination list to the network device through a message newly defined in the protocol.
  • the above steps S401 and S402 may be implemented based on the RRC connection reestablishment process.
  • the network device may send the first CA combination list supported by the cell to the terminal through the RRC connection reestablishment message in step two.
  • the terminal may send the determined second CA combination list to the network device through the RRC connection re-establishment completion message in step three.
  • the network device may send the first CA combination list supported by the cell to the terminal through an RRC connection reestablishment message, and the subsequent terminal may send the second CA combination list to the network device through a newly defined message in the protocol.
  • the network device sends the first CA combination list supported by the cell to the terminal through an RRC connection reestablishment message, and after receiving the RRC connection reestablishment message, the terminal sends indication information to the network device, where the indication information is used to instruct the network device to query the UE's ability.
  • the network device After receiving the indication information, the network device sends a UE capability query request to the terminal, and after receiving the UE capability query request, the UE sends a UE capability information message (such as a UE-EUTRA-Capability message) to the network device, the UE capability information
  • the message carries the above-mentioned second CA combination list.
  • the network device sends the first CA combination list supported by the cell to the terminal through a system message.
  • the network device carries the first CA combination list supported by the cell in a SIB message and sends it to the UE.
  • the UE determines the second CA combination list.
  • the terminal may report the second CA combination list to the network device through the RRC connection establishment request, the RRC connection establishment complete message, the RRC connection reestablishment request, the RRC connection reestablishment complete message, or the UE capability information message.
  • the network device may actively query the UE capability, or the terminal may trigger the network device to query the UE capability.
  • the terminal needs to add the second CA combination list after determining the second CA combination list based on the first CA combination list issued by the network device and the CA combination supported by the terminal Re-report to the network device to update the capabilities of the UE.
  • the terminal may trigger the network device to query the capabilities of the UE, and the terminal sends indication information to the network device to instruct the network device to query the capabilities of the UE.
  • the network device After receiving the indication information, the network device sends a UE capability query request to the terminal.
  • the terminal After receiving the UE capability query request, the terminal carries the second CA combination list in the UE capability information message and sends it to the network device.
  • the terminal reports the newly determined second CA combination list to the network device when the CA combination list that has changed compared to the previously reported CA combination list changes.
  • the network device may send the CA combination list supported by the cell to the terminal through a newly defined message in the protocol.
  • the network device After receiving the second CA combination list sent by the terminal, the network device learns the CA capability of the terminal according to the second CA combination list, and then can select several secondary cells from the secondary cells configured as the primary cell as the secondary cell of the terminal .
  • the network device includes three cells, namely cell 1, cell 2 and cell 3, wherein the frequency band where cell 1 is located is band1, the frequency band where cell 2 is located is band2, and the frequency band where cell 3 is located is band3.
  • the network device pre-configures the secondary cell of cell 1 to include cell 2 and cell 3, and the secondary cell of cell 2 includes cell 1 and cell 3.
  • the cell that the terminal accesses when accessing the network is cell 1, and this cell 1 is the primary cell of the terminal.
  • the CA information sent by the network device to the terminal includes the first CA combination list (eg, band1+band2, band2+band1, band1+band3, band1+band2+band3) supported by the primary cell (ie, cell 1), and the terminal receives the first After the CA combination list, match the CA combination that it supports. Assuming that the CA combination supported by the terminal itself includes band1+band2 and band2+band4, the second CA combination list sent by the terminal to the network device includes band1+band2. The network device learns that the terminal supports band1+band2 and does not support band1+band3 according to the second CA combination list reported by the terminal, and configures the cell 2 as the secondary cell of the terminal for the terminal.
  • the first CA combination list eg, band1+band2, band2+band1, band1+band3, band1+band2+band3
  • the primary cell ie, cell 1
  • the terminal receives the first After the CA combination list, match the CA combination that it supports.
  • the second CA combination list sent by the terminal to the network device
  • the terminal determines the CA combination list by combining the CA combinations supported by the cell to be accessed or already accessed and the CA combinations supported by the terminal itself.
  • the number of CA combinations included in the determined CA combination list is less than or equal to The number of all CA combinations supported by the terminal itself. Therefore, the terminal can reduce the number of reported CA combinations, avoid compatibility problems caused by network devices failing to resolve all CA combinations reported by the terminal, and ensure the success rate of terminal access to the network.
  • the CA combinations involved in the CA combination reported by the terminal to the network device are all CA combinations supported by the network device.
  • the CA combination reported by the terminal is reported based on the actual configuration of the network device.
  • the terminal is prevented from reporting terminal support and the network Mismatches caused by CA combinations not supported by the device.
  • the terminal can also be fully adaptive without synchronizing on the terminal side, which improves the adaptability of communication.
  • FIG. 5 it is a flowchart of another method for determining a carrier aggregation capability of a terminal provided by an embodiment of the present invention.
  • the method includes but is not limited to the following steps:
  • the first cell sends the CA information of the second cell to the terminal through the first network device.
  • the terminal receives the CA information of the second cell sent by the first cell through the first network device.
  • the CA information includes the location of the secondary cell of the second cell. List of CA frequency bands.
  • the terminal sends a second CA combination list to the second network device.
  • the second network device receives the second CA combination list sent by the terminal.
  • the second CA combination list is a list of CA frequency bands where the terminal is based on the secondary cell of the second cell and The CA combination supported by the terminal itself is determined, and the second CA combination list is used by the second network device to determine the CA capability of the terminal.
  • the first cell is the cell connected before the handover during the handover of the terminal cell, that is, the source cell.
  • the second cell is a cell to which the terminal connects after cell switching, that is, a target cell.
  • the second cell may be understood as a primary cell that provides services for the terminal after the cell switching, and a secondary cell of the second cell, that is, a secondary cell configured by the network device as the primary cell.
  • the first cell Before performing cell handover, the first cell sends the CA information of the second cell to the terminal.
  • the CA information includes a list of CA frequency bands where the secondary cell of the second cell is located.
  • the CA information may be obtained by the first cell from the second cell.
  • the CA information may also include the frequency band where the second cell is located.
  • the CA information may not include the frequency band in which the second cell is located. Since the second cell is a cell to which the terminal is to be handed over, the terminal knows the frequency band in which the second cell is located.
  • the first cell sends the CA information of the second cell to the terminal through the first network device may be understood as: the first network device sends the CA information of the second cell to the terminal on the first cell.
  • the first network device described in the embodiment of the present invention may be a source network device (eg, source base station) connected before the terminal is switched, and the second network device may be a target network device (eg, target base station) connected after the terminal is switched.
  • Figures 5 and 6 are an introduction to the CA combined reporting process for the handover process.
  • the second CA combination list sent by the terminal to the second network device may be all combinations of CA combinations determined by the terminal based on the CA frequency band list where the second cell and its secondary cell are located and the CA combinations supported by the terminal itself, or may be Part of the total combination. For example, a part of the combination of all the combinations has been reported before, so this time it is not necessary to report this part of the combination again.
  • the frequency band where the second cell is located is band1
  • the frequency bands where the secondary cell configured by the network device for the second cell is located are band2 and band3, respectively.
  • the CA combination supported by the terminal itself includes band1+band2, band1+band3, band2+band4+band5, and band3+band4.
  • the first cell sends band2 and band3 to the terminal through the first network device. Therefore, when matching filtering the CA combination supported by the terminal, the terminal may perform filtering based on the three frequency bands where the second cell and its secondary cell are located.
  • the second CA combination determined by the terminal includes band1+ band2, band1+band3.
  • the CA combination reported by the UE is related to the second cell. After the UE performs mobile handover, the CA capability supported by the target cell (ie, the second cell) may change, and the terminal needs to report to the second cell again. Adapted CA combination to better adapt to the second cell and improve communication quality.
  • the above steps S501 and S502 may be implemented based on the RRC connection reconfiguration process.
  • the process includes the following steps, where step one: the source base station sends an RRC connection reconfiguration message to the terminal.
  • the first network device may send the CA frequency band list where the secondary cell of the second cell is located to the terminal through the RRC connection reconfiguration message in step one.
  • the terminal may send the determined second CA combination list to the second network device through the RRC connection reconfiguration completion message in step two.
  • the terminal may also send the second CA combination list to the second network device through the UE capability information message.
  • the terminal may trigger the network device to query the capabilities of the UE.
  • the first network device sends the CA frequency band list where the secondary cell of the second cell is located to the terminal through an RRC connection reconfiguration message, and after receiving the RRC connection reconfiguration message, the terminal sends indication information to the second network device. The information is used to indicate the ability of the second network device to query the UE.
  • the second network device After receiving the indication information, the second network device sends a UE capability query request to the terminal, and after receiving the UE capability query request, the UE sends a UE capability information message (such as a UE-EUTRA-Capability message) to the second network device,
  • a UE capability information message (such as a UE-EUTRA-Capability message) to the second network device,
  • the UE capability information message carries the above-mentioned second CA combination list.
  • the first network device may send the list of CA frequency bands where the secondary cell of the second cell is located to the terminal through an RRC connection reconfiguration message.
  • the terminal may send the determined second CA combination list to the second network device through a newly defined message in the protocol.
  • the second network device may send the list of CA frequency bands where the secondary cell of the second cell is located to the terminal through a message newly defined in the protocol.
  • the terminal may also send the determined second CA combination list to the second network device through a newly defined message in the protocol.
  • the first network device and the second network device are different network devices.
  • the embodiment of the present invention relates to cell switching across network devices.
  • the first network device and the second network device are the same network device, and the embodiment of the present invention relates to cell switching in the same network device.
  • the second network device After receiving the second CA combination list sent by the terminal, the second network device learns the CA capability of the terminal according to the second CA combination list, and then can select several secondary cells from the secondary cells configured as the primary cell as the terminal’s Secondary community.
  • the second network device includes three cells, namely cell 1, cell 2 and cell 3, wherein the frequency band where cell 1 is located is band1, the frequency band where cell 2 is located is band2, and the frequency band where cell 3 is located is band3.
  • the second network device pre-configures the secondary cell of cell 1 to include cell 2 and cell 3, and the secondary cell of cell 2 includes cell 1 and cell 3.
  • the target cell selected by the source cell (ie, the first cell) for the terminal is cell 1 on the second network device, and this cell 1 is the primary cell after the terminal is switched.
  • the CA information sent by the source cell to the terminal through the first network device includes the CA frequency bands (ie, band2 and band3) where the secondary cells (ie, cell 2 and cell 3) of the designated primary cell (ie, cell 1) are handed over, and the terminal receives After the CA frequency band is matched with the CA combination it supports, assuming that the CA combination supported by the terminal itself includes band1+band2 and band2+band4, the second CA combination list sent by the terminal to the second network device includes band1+band2.
  • the second network device learns that the terminal supports band1+band2 and does not support band1+band3 according to the second CA combination list reported by the terminal, and then configures cell 2 as the secondary cell of the terminal for the terminal.
  • the terminal determines the CA combination list by combining the CA frequency band where the second cell and its secondary cell after handover are located and the CA combination supported by the terminal itself.
  • the determined CA combination list contains The number of CA combinations is less than or equal to the number of all CA combinations supported by the terminal itself. Therefore, the terminal can reduce the number of CA combinations reported to avoid compatibility problems caused by network devices unable to resolve all CA combinations reported by the terminal, ensuring The success rate of terminal access to the network.
  • the CA combination reported by the terminal to the network device is located in the CA frequency band where the second cell and its secondary cell are located after the handover.
  • the CA combination reported by the terminal is based on the actual location of the second cell and its secondary cell after the handover If the configuration is reported, the matching between the CA combination reported by the terminal and the CA combination supported by the cell can be improved. In addition, if the operator updates the CA band combination configuration that it supports, the terminal can also be fully adaptive without synchronization on the terminal side, which improves the adaptability of communication.
  • FIG. 6 it is a flowchart of another method for determining a carrier aggregation capability of a terminal provided by an embodiment of the present invention.
  • the method includes but is not limited to the following steps:
  • the first cell sends the CA information of the second cell to the terminal through the first network device.
  • the terminal receives the CA information of the second cell sent by the first cell through the first network device.
  • the CA information includes the first cell supported by the second cell.
  • CA combination list is
  • the terminal sends a second CA combination list to the second network device.
  • the second network device receives the second CA combination list sent by the terminal.
  • the second CA combination list is the first CA combination list and the terminal supported by the terminal according to the second cell. Determined by the CA combination supported by itself, the second CA combination list is used by the second network device to determine the CA capability of the terminal.
  • the first cell is the cell connected before the handover during the handover of the terminal cell, that is, the source cell.
  • the second cell is a cell to which the terminal connects after cell switching, that is, a target cell.
  • the first cell sends the CA information of the second cell to the terminal.
  • the CA information includes a list of CA combinations supported by the second cell.
  • the CA information may be obtained by the first cell from the second cell.
  • the first network device described in the embodiment of the present invention may be a source network device (eg, source base station) connected before the terminal is switched, and the second network device may be a target network device (eg, target base station) connected after the terminal is switched.
  • a source network device eg, source base station
  • a target network device eg, target base station
  • the second CA combination list sent by the terminal to the second network device may be all combinations of CA combinations determined by the terminal based on the CA frequency band list supported by the second cell and the CA combinations supported by the terminal itself, or may be all combinations Part of the combination. For example, a part of the combination of all the combinations has been reported before, so this time it is not necessary to report this part of the combination again.
  • the frequency band where the second cell is located is band1, and the secondary cells in the second cell include 2, and the frequency bands where the two secondary cells are located are band2 and band3, respectively.
  • the first CA combination list supported by the second cell includes band1+band2, band2+band1, band1+band3, and band1+band2+band3.
  • the CA combination supported by the terminal itself includes band1+band2, band1+band3, band2+band4+band5, and band3+band4.
  • the terminal may perform filtering based on the first CA combination list. Therefore, the second CA combination determined by the terminal includes band1+band2 and band1+band3.
  • the CA combination reported by the UE is related to the second cell. After the UE performs mobile handover, the CA capability supported by the target cell (ie, the second cell) may change, and the terminal needs to report to the second cell again. Adapted CA combination to better adapt to the second cell and improve communication quality.
  • the above steps S601 and S602 may be implemented based on the RRC connection reconfiguration process.
  • the first network device may send the first CA combination list supported by the second cell to the terminal through the RRC connection reconfiguration message in step one.
  • the terminal may send the determined second CA combination list to the second network device through the RRC connection reconfiguration completion message in step two.
  • the terminal may also send the second CA combination list to the second network device through the UE capability information message.
  • the terminal may trigger the network device to query the capabilities of the UE.
  • the first network device sends the first CA combination list supported by the second cell to the terminal through an RRC connection reconfiguration message, and after receiving the RRC connection reconfiguration message, the terminal sends indication information to the second network device, the indication information It is used to instruct the second network device to query the capability of the UE.
  • the second network device After receiving the indication information, the second network device sends a UE capability query request to the terminal, and after receiving the UE capability query request, the UE sends a UE capability information message (such as a UE-EUTRA-Capability message) to the second network device,
  • a UE capability information message (such as a UE-EUTRA-Capability message) to the second network device,
  • the UE capability information message carries the above-mentioned second CA combination list.
  • the first network device may send the first CA combination list supported by the second cell to the terminal through an RRC connection reconfiguration message.
  • the terminal may send the determined second CA combination list to the second network device through a newly defined message in the protocol.
  • the second network device may send the first CA combination list supported by the second cell to the terminal through a message newly defined in the protocol.
  • the terminal may also send the determined second CA combination list to the second network device through a newly defined message in the protocol.
  • the first network device and the second network device are different network devices.
  • the embodiment of the present invention relates to cell switching across network devices.
  • the first network device and the second network device are the same network device, and the embodiment of the present invention relates to cell switching in the same network device.
  • the second network device After receiving the second CA combination list sent by the terminal, the second network device learns the CA capability of the terminal according to the second CA combination list, and then can select several secondary cells from the secondary cells configured as the primary cell as the terminal’s Secondary community.
  • the second network device includes three cells, namely cell 1, cell 2 and cell 3, wherein the frequency band where cell 1 is located is band1, the frequency band where cell 2 is located is band2, and the frequency band where cell 3 is located is band3.
  • the second network device pre-configures the secondary cell of cell 1 to include cell 2 and cell 3, and the secondary cell of cell 2 includes cell 1 and cell 3.
  • the target cell selected by the source cell (ie, the first cell) for the terminal is cell 1 on the second network device, and this cell 1 is the primary cell after the terminal is switched.
  • the CA information sent by the source cell to the terminal through the first network device includes the first CA combination list (for example, band1+band2, band2+band1, band1+band3, band1+band2+) supported by the primary cell (ie cell 1) after the terminal is switched band3), after receiving the first CA combination list, the terminal matches the CA combination it supports. Assuming that the CA combination supported by the terminal itself includes band1+band2 and band2+band4, the terminal sends the second CA combination to the second network device The list includes band1+band2. The second network device learns that the terminal supports band1+band2 and does not support band1+band3 according to the second CA combination list reported by the terminal, and then configures cell 2 as the secondary cell of the terminal for the terminal.
  • the first CA combination list for example, band1+band2, band2+band1, band1+band3, band1+band2+
  • the terminal determines the CA combination list by combining the CA combination supported by the second cell after handover and the CA combination supported by the terminal itself.
  • the CA combination included in the determined CA combination list The number is less than or equal to the number of all CA combinations supported by the terminal itself. Therefore, the terminal can reduce the number of CA combinations reported to avoid compatibility problems caused by the network device unable to resolve all CA combinations reported by the terminal, ensuring the success of terminal access to the network rate.
  • the CA combinations involved in the CA combination reported by the terminal to the handover network device all belong to the CA combination supported by the second cell after handover.
  • the CA combination reported by the terminal is reported based on the actual configuration of the handover second cell Therefore, it avoids the mismatch problem caused by the terminal reporting CA combination that the terminal supports but the network device does not support.
  • the terminal can also be fully adaptive without synchronizing on the terminal side, which improves the adaptability of communication.
  • FIGS. 7-14 are taken as examples to introduce the process of determining the CA capability of the terminal in this application.
  • the terminal may send an RRC connection establishment request to the cell currently being accessed (ie, the source cell in FIG. 7) (S701).
  • the source cell After receiving the sent RRC connection establishment request, the source cell sends an RRC connection establishment message to the terminal (S702).
  • the RRC connection establishment message needs to include an additional CA frequency band list.
  • the CA frequency band list is a CA frequency band where the secondary cell configured by the network device for the source cell is located.
  • the CA frequency band list may also include the frequency band where the source cell is located.
  • the CA frequency band list is used to notify the terminal of the CA frequency band supported by the source cell, so that the terminal can screen based on the CA combination supported by the source cell and the CA frequency band supported by the source cell, and select the matching CA combination. Furthermore, an RRC connection establishment complete message is sent to the source cell (S703), and the RRC connection establishment complete message includes a matching CA combination. For how to filter out matching CA combinations, reference may be made to the example in the foregoing embodiment, and details will not be described again this time. Subsequently, the source cell sends a UE capability query request to the terminal (S704). After receiving the UE capability query request, the terminal reports the matching CA combination to the source cell through a UE capability information message (S705).
  • the terminal may also report the matching CA combination during the RRC connection reestablishment process.
  • the specific process is as follows: the terminal sends an RRC connection reestablishment request to the source cell (S701). After receiving the RRC connection reestablishment request sent by the terminal, the source cell sends an RRC connection reestablishment message to the terminal (S702).
  • the RRC connection reestablishment message needs to include an additional CA frequency band list, where the CA frequency band list is a CA frequency band where the secondary cell configured by the network device for the source cell is located.
  • the CA frequency band list may also include the frequency band where the source cell is located.
  • the CA frequency band list is used to notify the terminal of the CA frequency band supported by the source cell, so that the terminal can screen based on the CA combination supported by the source cell and the CA frequency band supported by the source cell, and select the matching CA combination. Furthermore, the matching CA combination is reported to the source cell through an RRC connection reestablishment complete message (S703).
  • the terminal may also report the CA combination during cell handover.
  • the specific process is as follows: the source cell sends the CA frequency band list of the target cell to the terminal through an RRC connection reconfiguration message (S706).
  • the CA frequency band list is the frequency band where the secondary cell configured by the network device for the target cell is located.
  • the CA frequency band list may also include the frequency band where the target cell is located.
  • the terminal After receiving the RRC connection reconfiguration message sent by the source cell, the terminal sends an RRC connection reconfiguration complete message to the target cell (S707).
  • the RRC connection reconfiguration complete message includes the matched CA combination selected by the terminal. Report its own CA capabilities to the target cell through the RRC reconfiguration complete message.
  • the source cell sends a system message (S801), and the terminal receives the system message sent by the source cell.
  • the system message includes a list of CA frequency bands.
  • the CA frequency band list is the CA frequency band where the secondary cell configured by the network device for the source cell is located.
  • the CA frequency band list may also include the frequency band where the source cell is located.
  • the terminal sends an RRC connection establishment request to the network device (S802).
  • the network device After receiving the RRC connection establishment request, the network device sends an RRC connection establishment message to the terminal (S803), and then the terminal sends an RRC connection establishment completion message to the network device (S804) ), the RRC connection establishment complete message includes the matched CA combination list.
  • the terminal sends an RRC connection reestablishment request to the network device (S802), and after receiving the RRC connection reestablishment request, the network device sends an RRC connection reestablishment message to the terminal (S803), and then the terminal sends an RRC connection reestablishment complete message to the network device (S804) ), the RRC connection re-establishment complete message includes the matched CA combination list. If there is a subsequent UE capability query process, the network device sends a UE capability query request to the terminal (S804), and the terminal sends a UE capability information message (S805) to the network device.
  • the CA combination and RRC carried in the UE capability information message (S805) The CA combination carried in the connection establishment complete message or the RRC connection reestablishment complete message is consistent.
  • the terminal may also report the CA combination during cell handover.
  • the specific process is as follows: the source cell sends an RRC connection reconfiguration message to the terminal (S807).
  • the RRC connection reconfiguration message includes the CA frequency band list of the target cell.
  • the CA frequency band list is the frequency band where the secondary cell of the target cell is located.
  • the CA frequency band list may also include the frequency band where the target cell is located.
  • the terminal After receiving the RRC connection reconfiguration message sent by the source cell, the terminal sends an RRC connection reconfiguration complete message to the target cell (S808).
  • the RRC connection reconfiguration complete message includes the matched CA combination selected by the terminal. Report its own CA capabilities to the target cell through the RRC reconfiguration complete message.
  • the terminal sends an RRC connection establishment request to the source cell (S901), and the source cell sends an RRC connection establishment message to the terminal (S902).
  • the RRC connection establishment message includes the CA frequency band list.
  • the CA frequency band list is the CA frequency band where the secondary cell configured by the network device for the source cell is located.
  • the CA frequency band list may also include the frequency band in which the source cell is located.
  • the terminal After receiving the RRC connection establishment message, the terminal sends an RRC connection establishment complete message to the source cell (S903). If it needs to update its own CA capability, the RRC connection establishment complete message includes indication information, which is used to notify the source The cell triggers the process of querying UE capabilities.
  • the source cell sends a UE capability query request to the terminal according to the instruction information (S904), requesting the terminal to report its capability.
  • the terminal sends a UE capability information message to the source cell (S905).
  • the UE capability information message carries the matched CA combination list.
  • the CA combination list is based on the CA combination supported by the terminal and the CA frequency band list issued by the source cell. definite. If the terminal has reported the CA combination before, this time it can report the CA combination that is different from the previous one. Of course, it can also report all the CA combinations after matching, which is not limited in this application.
  • the terminal sends an RRC connection reestablishment request to the source cell (S901), and the source cell sends an RRC connection reestablishment message to the terminal (S902).
  • the RRC connection reestablishment message includes the CA frequency band list.
  • the CA frequency band list is the CA frequency band where the secondary cell configured by the network device for the source cell is located.
  • the CA frequency band list may also include the frequency band where the source cell is located.
  • the terminal After receiving the RRC connection reestablishment message, the terminal sends an RRC connection reestablishment complete message to the source cell (S903).
  • the RRC connection reestablishment complete message includes indication information, which is used to notify the source
  • the cell triggers the process of querying UE capabilities.
  • the source cell sends a UE capability query request to the terminal according to the instruction information (S904), requesting the terminal to report its capability.
  • the terminal sends a UE capability information message to the source cell (S905).
  • the UE capability information message carries the matched CA combination list.
  • the CA combination list is based on the CA combination supported by the terminal and the CA frequency band list issued by the source cell. definite. If the terminal has reported the CA combination before, this time it can report the CA combination that is different from the previous one. Of course, it can also report all the CA combinations after matching, which is not limited in this application.
  • the source cell sends an RRC connection reconfiguration message to the terminal (S906).
  • the RRC connection reconfiguration message includes the CA frequency band list of the target cell.
  • the CA frequency band list is the frequency band where the secondary cell configured by the network device for the target cell is located.
  • the CA frequency band list may also include the frequency band where the target cell is located.
  • the terminal After receiving the RRC connection reconfiguration message sent by the source cell, the terminal sends an RRC connection reconfiguration complete message to the target cell (S907). If the terminal needs to update its own CA capability, the RRC connection reconfiguration complete message includes indication information The indication information is used to notify the target cell to trigger the process of querying UE capabilities.
  • the target cell sends a UE capability query request to the terminal according to the instruction information (S908), requesting the terminal to report its capability.
  • the terminal sends a UE capability information message to the source cell (S909).
  • the UE capability information message carries the matched CA combination list.
  • the CA combination list is based on the CA combination supported by the terminal and the CA frequency band list delivered by the source cell. definite. If the terminal has reported the CA combination before, this time it can report the CA combination that is different from the previous one. Of course, it can also report all the CA combinations after matching, which is not limited in this application.
  • the source cell sends a system message (S1001), and the terminal receives the system message sent by the source cell.
  • the system message includes a list of CA frequency bands of the source cell.
  • the CA frequency band list is the CA frequency band where the secondary cell configured by the network device for the source cell is located.
  • the CA frequency band list may also include the frequency band where the source cell is located.
  • the terminal sends an RRC connection establishment request to the source cell (S1002), the source cell sends an RRC connection establishment message to the terminal (S1003), and then, the source cell sends an RRC connection establishment complete message to the terminal (S1004).
  • the RRC connection establishment complete message includes indication information, which is used to notify the source cell to trigger the process of querying the UE capability.
  • the source cell sends a UE capability query request to the terminal according to the instruction information (S1006), requesting the terminal to report its capability.
  • the terminal sends a UE capability information message to the source cell (S1007).
  • the UE capability information message carries the matched CA combination list.
  • the CA combination list is based on the CA combination supported by the terminal and the CA frequency band list issued by the source cell. definite. If the terminal has reported the CA combination before, this time it can report the CA combination that is different from the previous one. Of course, it can also report all the CA combinations after matching, which is not limited in this application.
  • the source cell sends a system message (S1001), and the terminal receives the system message sent by the source cell, where the system message includes a list of CA frequency bands of the source cell.
  • the CA frequency band list is the CA frequency band where the secondary cell configured by the network device for the source cell is located.
  • the CA frequency band list may also include the frequency band where the source cell is located.
  • the terminal sends an RRC connection reestablishment request to the source cell (S1002), the source cell sends an RRC connection reestablishment message to the terminal (S1003), and then the source cell sends an RRC connection reestablishment complete message to the terminal (S1004).
  • the RRC connection re-establishment complete message includes indication information, which is used to notify the source cell to trigger the process of querying the UE capability.
  • the source cell sends a UE capability query request to the terminal according to the instruction information (S1006), requesting the terminal to report its capability.
  • the terminal sends a UE capability information message to the source cell (S1007).
  • the UE capability information message carries the matched CA combination list.
  • the CA combination list is based on the CA combination supported by the terminal and the CA frequency band list issued by the source cell. definite. If the terminal has reported the CA combination before, this time it can report the CA combination that is different from the previous one. Of course, it can also report all the CA combinations after matching, which is not limited in this application.
  • the terminal may also report the CA combination during cell handover.
  • the specific process is as follows: the source cell sends an RRC connection reconfiguration message to the terminal.
  • the RRC connection reconfiguration message includes the CA frequency band list of the target cell.
  • the CA frequency band list is the frequency band where the secondary cell configured by the network device for the target cell is located. Yes, the CA frequency band list may also include the frequency band where the target cell is located.
  • the terminal After receiving the RRC connection reconfiguration message sent by the source cell, the terminal sends an RRC connection reconfiguration complete message to the target cell (S1008). If it needs to update its own CA capability, the RRC connection reconfiguration complete message includes indication information, The indication information is used to notify the target cell to trigger the process of querying UE capabilities.
  • the target cell sends a UE capability query request to the terminal according to the instruction information (S1009), requesting the terminal to report its capability.
  • the terminal sends a UE capability information message to the source cell (S1010).
  • the UE capability information message carries the matched CA combination list.
  • the CA combination list is based on the CA combination supported by the terminal and the CA frequency band list issued by the source cell. definite. If the terminal has reported the CA combination before, this time it can report the CA combination that is different from the previous one. Of course, it can also report all the CA combinations after matching, which is not limited in this application.
  • the terminal may send an RRC connection establishment request to the cell currently being accessed (that is, the source cell in FIG. 11) (S1101).
  • the source cell After receiving the RRC connection establishment request for the transmission, the source cell sends an RRC connection establishment message to the terminal (S1102).
  • the RRC connection establishment message needs to include an additional CA combination list, and the CA combination list is a CA combination supported by the source cell itself.
  • the CA combination list is used to notify the terminal of the CA combinations supported by the source cell, so that the terminal can screen based on the CA combinations supported by the source cell and the CA combinations supported by the source cell, and filter out matching CA combinations.
  • the terminal sends an RRC connection establishment complete message to the source cell (S1103), and the RRC connection establishment complete message includes a matching CA combination.
  • the source cell sends a UE capability query request to the terminal (S1104).
  • the terminal After receiving the UE capability query request, the terminal sends a UE capability information message to the source cell (S1105).
  • the UE capability information message includes the CA combination matched by the terminal. .
  • the terminal may also report the matching CA combination during the RRC connection reestablishment process.
  • the specific process is as follows: the terminal sends an RRC connection reestablishment request to the source cell (S1101). After receiving the RRC connection reestablishment request sent by the terminal, the source cell sends an RRC connection reestablishment message to the terminal (S1102).
  • the RRC connection reestablishment message needs to include an additional CA combination list, and the CA combination list is a CA combination supported by the source cell.
  • the CA combination list is used to notify the terminal of the CA combinations supported by the source cell, so that the terminal can screen based on the CA combinations supported by the source cell and the CA combinations supported by the source cell, and filter out matching CA combinations.
  • the terminal sends an RRC connection reestablishment complete message to the source cell (S1103), and the RRC connection reestablishment complete message includes the CA combination matched by the terminal.
  • the terminal may also report the CA combination during cell handover.
  • the specific process is as follows: the source cell sends an RRC connection reconfiguration message to the terminal (S1106), and the RRC connection reconfiguration message includes the CA combination list supported by the target cell. After receiving the RRC connection reconfiguration message sent by the source cell, the terminal sends an RRC connection reconfiguration completion message to the target cell (S1107).
  • the RRC connection reconfiguration complete message includes the matched CA combination selected by the terminal. Report its own CA capabilities to the target cell through the RRC reconfiguration complete message.
  • the source cell sends a system message (S1201), and the terminal receives the system message sent by the source cell.
  • the system message includes a list of CA combinations supported by the source cell itself.
  • the subsequent terminal may report the matched CA combination to the source cell through an RRC connection establishment complete message or an RRC connection reestablishment complete message (S1204). If there is a subsequent UE capability query process, the CA combination carried by the terminal in the UE capability information message (S1206) is consistent with the CA combination carried in the RRC connection establishment complete message or RRC connection reestablishment complete message.
  • the terminal may also report the CA combination during cell handover.
  • the specific process is as follows: the source cell sends an RRC connection reconfiguration message to the terminal (S1207), and the RRC connection reconfiguration message includes the CA combination list supported by the target cell. After receiving the RRC connection reconfiguration message sent by the source cell, the terminal sends an RRC connection reconfiguration complete message to the target cell (S1208).
  • the RRC connection reconfiguration complete message includes the matched CA combination selected by the terminal. Report its own CA capabilities to the target cell through the RRC reconfiguration complete message.
  • the terminal sends an RRC connection establishment request or RRC connection reestablishment request to the source cell (S1301), and the source cell sends an RRC connection establishment message or RRC connection reestablishment message to the terminal (S1302).
  • the RRC connection establishment message or the RRC connection reestablishment message includes the CA combination list supported by the source cell itself.
  • the terminal After receiving the RRC connection establishment message or the RRC connection reestablishment message, the terminal sends an RRC connection establishment complete message or the RRC connection reestablishment complete message to the source cell (S1303).
  • the RRC connection establishment complete message Or the RRC connection reestablishment complete message includes indication information, which is used to notify the source cell to trigger the process of querying the UE capabilities.
  • the source cell sends a UE capability query request to the terminal according to the instruction information (S1304), requesting the terminal to report its capability.
  • the terminal sends a UE capability information message to the source cell (S1305).
  • the UE capability information message carries the matched CA combination list.
  • the CA combination list is based on the CA combination supported by the terminal and the CA combination list issued by the source cell. definite. If the terminal has reported the CA combination before, this time it can report the CA combination that is different from the previous one. Of course, it can also report all the CA combinations after matching, which is not limited in this application.
  • the source cell sends an RRC connection reconfiguration message to the terminal (S1306).
  • the RRC connection reconfiguration message includes the CA combination list supported by the target cell.
  • the terminal After receiving the RRC connection reconfiguration message sent by the source cell, the terminal sends an RRC connection reconfiguration completion message to the target cell (S1307).
  • the RRC connection reconfiguration complete message includes indication information, which is used to notify the target cell to trigger the process of querying the UE capability.
  • the target cell sends a UE capability query request to the terminal according to the instruction information (S1308), requesting the terminal to report its capability.
  • the terminal sends a UE capability information message to the source cell (S1309).
  • the UE capability information message carries the matched CA combination list.
  • the CA combination list is based on the CA combination supported by the terminal and the CA combination list delivered by the source cell. definite. If the terminal has reported the CA combination before, this time it can report the CA combination that is different from the previous one. Of course, it can also report all the CA combinations after matching, which is not limited in this application.
  • the source cell sends a system message (S1401), and the terminal receives the system message sent by the source cell.
  • the system message includes a list of CA combinations supported by the source cell itself. If the terminal needs to update its own CA capabilities, it subsequently sends indication information to the source cell through the RRC connection establishment complete message or RRC connection reestablishment complete message during the RRC connection establishment process or the RRC connection reestablishment process (S1404), informing the source cell to trigger the query of the UE Ability process.
  • the source cell sends a UE capability query request to the terminal according to the instruction information (S1405), requesting the terminal to report its capability.
  • the terminal sends a UE capability information message to the source cell (S1406).
  • the UE capability information message carries the matched CA combination list.
  • the CA combination list is based on the CA combination supported by the terminal and the CA combination list issued by the source cell. definite. If the terminal has reported the CA combination before, this time it can report the CA combination that is different from the previous one. Of course, it can also report all the CA combinations after matching, which is not limited in this application.
  • the terminal may also report the CA combination during cell handover.
  • the specific process is as follows: the source cell sends an RRC connection reconfiguration message to the terminal (S1407), and the RRC connection reconfiguration message includes the CA combination list supported by the target cell. After receiving the RRC connection reconfiguration message sent by the source cell, the terminal sends an RRC connection reconfiguration complete message to the target cell (S1408). If it is necessary to update its own CA capability, the RRC connection reconfiguration complete message includes indication information, which is used to notify the target cell to trigger the process of querying the UE capability. The target cell sends a UE capability query request to the terminal according to the instruction information (S1409), requesting the terminal to report its capability.
  • the terminal sends a UE capability information message to the source cell (S1410).
  • the UE capability information message carries the matched CA combination list.
  • the CA combination list is based on the CA combination supported by the terminal and the CA combination list delivered by the source cell. definite. If the terminal has reported the CA combination before, this time it can report the CA combination that is different from the previous one. Of course, it can also report all the CA combinations after matching, which is not limited in this application.
  • each network device such as a terminal and a network device, includes a hardware structure and/or a software module corresponding to each function.
  • each network device such as a terminal and a network device
  • each network device includes a hardware structure and/or a software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driven hardware depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application may divide the functional modules of the terminal and the network device according to the above method example.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another division manner.
  • FIG. 15 shows a schematic diagram of a possible logical structure of the terminal involved in the foregoing embodiment.
  • the terminal 700 includes a receiving unit 701 and a sending unit 702.
  • the receiving unit 701 is used to support the terminal to perform the steps of the terminal receiving information in the foregoing method embodiments shown in FIGS.
  • the sending unit 702 is used to support the terminal to perform the steps of sending information by the terminal in the foregoing method embodiments shown in FIGS. 3 to 14.
  • the terminal 700 may further include a processing unit 703, which is used to support the terminal to execute the steps of the information determined by the terminal in the method embodiments shown in FIG. 3 to FIG. 14 and other functions other than the functions of the sending unit and the receiving unit Functions etc.
  • the above-mentioned processing unit 703 may be a processor or a processing circuit, etc.; the receiving unit 701 may be a transceiver or a transceiving circuit, etc.; the sending unit 702 may be a transceiver or a transceiving circuit, etc., and the sending unit 702 and the receiving unit 701 may Form a communication interface.
  • FIG. 16 is a schematic diagram of a possible hardware structure of the terminal involved in the foregoing embodiment provided by an embodiment of the present application.
  • the terminal device 800 may include: an input and output module (including an audio input and output module 818, a key input module 816, and a display 820, etc.), a user interface 802, one or more processors 804, a transceiver 806, an antenna 814 and memory 812. These components can be connected by a bus or other means.
  • FIG. 16 takes the connection by a bus as an example. among them:
  • the antenna 814 may be used to convert electromagnetic energy into electromagnetic waves in free space, or convert electromagnetic waves in free space into electromagnetic energy in transmission lines.
  • the transceiver 806 may be used for transmitting and processing the signal output by the processor 804, and may also be used for receiving and processing the mobile communication signal received by the antenna 814.
  • the number of transceivers 806 may be one or more.
  • the processor 804 may be a central processor unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of the present application.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a digital signal processor and a microprocessor, and so on.
  • the terminal 800 may also include other communication components, such as a GPS module, a Bluetooth module, a wireless fidelity (Wi-Fi) module, and so on. Not limited to the wireless communication signals described above, the terminal 800 may also support other wireless communication signals, such as satellite signals, short wave signals, and so on.
  • other communication components such as a GPS module, a Bluetooth module, a wireless fidelity (Wi-Fi) module, and so on.
  • the terminal 800 may also support other wireless communication signals, such as satellite signals, short wave signals, and so on.
  • the input/output module may be used to implement interaction between the terminal 800 and the user/external environment, and may mainly include an audio input/output module 818, a key input module 816, a display 820, and the like. Specifically, the input and output module may further include: a camera, a touch screen, a sensor, and so on. The input and output modules all communicate with the processor 804 through the user interface 802.
  • the memory 812 is coupled to the processor 804 and is used to store various software programs and/or multiple sets of instructions.
  • the memory 812 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 812 may store an operating system (hereinafter referred to as a system), such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • the memory 812 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.
  • the memory 812 can also store a user interface program, which can display the content of the application program vividly through a graphical operation interface, and receive user control operations on the application program through input controls such as menus, dialog boxes, and keys .
  • the memory 812 may be used to store an implementation program on the terminal 800 side of the method for determining the carrier aggregation capability of the terminal provided by one or more embodiments of the present application.
  • the method for determining the carrier aggregation capability of a terminal provided by one or more embodiments of this application please refer to the subsequent embodiments.
  • the processor 804 may be used to read and execute computer-readable instructions. Specifically, the processor 804 may be used to call a program stored in the memory 812, such as an implementation program on the terminal 800 side of the method for determining the carrier aggregation capability of the terminal provided by one or more embodiments of the present application, and execute the program included in the program Instructions to implement the method involved in subsequent embodiments.
  • the processor 804 may support: global system for mobile (GSM) (2G) communication, wideband code division multiple access (WCDMA) (3G) communication, and long term evolution , LTE) (4G) communication, and one or more of future 5G communication and so on.
  • GSM global system for mobile
  • WCDMA wideband code division multiple access
  • LTE long term evolution
  • 4G long term evolution
  • the processor 804 when the processor 804 receives any message or data, it specifically performs the receiving by driving or controlling the transceiver 806. Therefore, the processor 804 can be regarded as a control center that performs transmission or reception, and the transceiver 806 is a specific performer of transmission and reception operations.
  • the terminal 800 may be the terminal device 103 in the wireless communication system 100 shown in FIG. 1 and may be implemented as a mobile device, a mobile station (mobile station), a mobile unit (mobile unit), a wireless unit, a remote unit, or a user Agents, mobile clients, etc.
  • terminal 800 shown in FIG. 16 is only an implementation manner of the embodiment of the present application. In practical applications, the terminal 800 may further include more or fewer components, which is not limited herein.
  • FIG. 17 shows a schematic diagram of a possible logical structure of the network device involved in the foregoing embodiment.
  • the network device 900 includes: a sending unit 901 and a receiving unit 902.
  • the sending unit 901 is used to support the steps sent by the network device in the method embodiments shown in FIGS. 3 to 14 above;
  • the receiving unit 902 is used to support the steps received by the network device in the method embodiments shown in FIGS. 3 to 14 above.
  • the sending unit 901 may be a transceiver or a transceiver circuit
  • the receiving unit 902 may be a transceiver or a transceiver circuit.
  • the sending unit 901 and the receiving unit 902 may form a communication interface.
  • FIG. 18 is a schematic diagram of a possible hardware structure of the network device involved in the foregoing embodiment provided by an embodiment of the present application.
  • the network device 1000 may include one or more processors 1001, memory 1002, network interface 1003, transceiver 1005, and antenna 1008. These components can be connected through the bus 1004 or other methods.
  • FIG. 10 takes the connection through the bus as an example. among them:
  • the processor 1001 may be a central processor unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of the present application.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a digital signal processor and a microprocessor, and so on.
  • the network interface 1003 can be used for the network device 1000 to communicate with other communication devices, such as other network devices.
  • the network interface 1003 may be a wired interface.
  • the transceiver 1005 may be used to transmit the signal output by the processor 1001, such as signal modulation.
  • the transceiver 1005 may also be used to receive and process mobile communication signals received by the antenna 1008. For example, signal demodulation.
  • the number of transceivers 1005 may be one or more.
  • the antenna 1008 may be used to convert electromagnetic energy in the transmission line into electromagnetic waves in free space, or convert electromagnetic waves in free space into electromagnetic energy in transmission lines.
  • the memory 1002 may be coupled with the processor 1001 through a bus 1004 or input/output ports.
  • the memory 1002 may also be integrated with the processor 1001.
  • the memory 1002 is used to store various software programs and/or multiple sets of instructions.
  • the memory 1002 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 1002 may store an operating system (hereinafter referred to as a system), such as embedded operating systems such as uCOS, VxWorks, and RTLinux.
  • the memory 1002 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.
  • the processor 1001 may be used to perform wireless channel management, implement call and communication link establishment and teardown, and provide cell handover control for users in the control area.
  • the processor 1001 may include: an management/communication module (administration module/communication module, AM/CM) (a center used for voice channel exchange and information exchange), and a basic module (BM) (used to complete a call Processing, signaling processing, wireless resource management, wireless link management and circuit maintenance functions), transcoder and submultiplexer (TCSM) (used to complete multiplexing and demultiplexing and transcoding functions), etc. Wait.
  • an management/communication module administration module/communication module, AM/CM
  • BM basic module
  • TCSM transcoder and submultiplexer
  • the processor 1001 may be used to read and execute computer-readable instructions. Specifically, the processor 1001 may be used to call a program stored in the memory 1002, for example, an implementation program on the network device 1000 side of the method for determining a carrier aggregation capability of a terminal provided by one or more embodiments of the present application, and executing the program includes Instructions.
  • the network device 1000 may be the network device 101 in the wireless communication system 100 shown in FIG. 1, and may be implemented as NodeB, eNodeB, gNB, and so on.
  • the network device 1000 shown in FIG. 18 is only an implementation manner of the embodiment of the present application. In practical applications, the network device 1000 may further include more or fewer components, which is not limited herein.
  • FIG. 19 shows a schematic structural diagram of a communication chip provided by the present application.
  • the communication core 1100 may include: a processor 1101, and one or more interfaces 1102 coupled to the processor 1101. among them:
  • the processor 1101 may be used to read and execute computer-readable instructions.
  • the processor 1101 may mainly include a controller, an arithmetic unit, and a register.
  • the controller is mainly responsible for instruction decoding and issues control signals for the operations corresponding to the instructions.
  • the arithmetic unit is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logical operations, and can also perform address operations and conversions.
  • the register is mainly responsible for saving the register operands and intermediate operation results temporarily stored during the execution of the instruction.
  • the hardware architecture of the processor 1101 may be an application-specific integrated circuit (ASIC) architecture, an internal interlocked pipeline (microprocessor without interlocked pipelines, MIPS) architecture, an ARM architecture, or a network processor (network) processor, NP) architecture, etc.
  • ASIC application-specific integrated circuit
  • MIPS microprocessor without interlocked pipelines
  • ARM ARM
  • NP network processor
  • the interface 1102 can be used to input data to be processed to the processor 1101, and can output the processing result of the processor 1101 to the outside.
  • the interface 1102 may be a general purpose input (GPIO) interface, which may be connected to multiple peripheral devices (such as a display (LCD), a camera (camara), a radio frequency (RF) module, etc.) connection.
  • the interface 1102 is connected to the processor 1101 through a bus 1103.
  • the interface 1102 may also include a plurality of independent interfaces, such as an Ethernet interface, an LCD interface, a Camera interface, etc., which are respectively responsible for communication between different peripheral devices and the processor 1101.
  • the processor 1101 may be used to call from the memory a program for implementing the method for determining the carrier aggregation capability of the terminal provided by one or more embodiments of the present application on the terminal side, and execute the instructions contained in the program.
  • the interface 1102 may be used to output the execution result of the processor 1101.
  • the corresponding functions of the processor 1101 and the interface 1102 can be implemented by hardware design, software design, or a combination of software and hardware, which is not limited herein.
  • the memory (not shown) may include one or more.
  • the one or more memories may be provided in the communication chip, or may be an off-chip memory provided outside the communication chip and coupled with the communication chip, or may be a communication The combination of on-chip memory and off-chip memory.
  • FIG. 20 shows a schematic structural diagram of a communication chip provided by the present application.
  • the communication chip 120 may include: a processor 1201, and one or more interfaces 1202 coupled to the processor 1201. among them:
  • the processor 1201 may be used to read and execute computer-readable instructions.
  • the processor 1201 may mainly include a controller, an arithmetic unit, and a register.
  • the controller is mainly responsible for instruction decoding and issues control signals for the operations corresponding to the instructions.
  • the arithmetic unit is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logical operations, and can also perform address operations and conversions.
  • the register is mainly responsible for saving the register operands and intermediate operation results temporarily stored during the execution of the instruction.
  • the hardware architecture of the processor 1201 may be an ASIC architecture, a MIPS architecture, an ARM architecture, an NP architecture, or the like.
  • the processor 1201 may be single-core or multi-core.
  • the interface 1202 can be used to input data to be processed to the processor 1201, and can output the processing result of the processor 1201 to the outside.
  • the processor is coupled to the memory, and the memory may be provided in the communication chip, or may be an off-chip memory provided outside the communication chip and coupled with the communication chip, or may be a combination of the memory in the communication chip and the off-chip memory.
  • the processor 1201 may be used to call, from the memory, an implementation program on the communication device side of the method for determining the carrier aggregation capability of the terminal provided by one or more embodiments of this application, and execute the instructions contained in the program.
  • the interface 1202 may be used to output the execution result of the processor 1201.
  • processor 1201 and the interface 1202 can be implemented by hardware design, software design, or a combination of software and hardware, which is not limited herein.
  • a computer storage medium stores computer-executable instructions.
  • a device which may be a single-chip computer, chip, etc.
  • processor can call the readable storage medium for storage
  • a computer executes instructions to perform the steps of the terminal or network device in the method for determining the carrier aggregation capability of the terminal provided in FIG. 3 to FIG. 14.
  • the aforementioned computer storage medium may include: a read-only memory, a random access memory, and other media that can store program codes.
  • the foregoing computer storage media may include: a USB flash drive, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk, or an optical disk, etc., that can store program codes.
  • a computer program product in another embodiment of the present application, includes computer-executable instructions, and the computer-executable instructions are stored in a computer-readable storage medium; at least one processor of the device may be accessible from the computer.
  • the read storage medium reads the computer-executed instruction, and at least one processor executes the computer-executed instruction to cause the device to implement the steps of the terminal or network device in the method for determining the carrier aggregation capability of the terminal provided in FIG. 3 to FIG. 14.
  • a wireless communication system is further provided.
  • the wireless communication system includes multiple devices, and the multiple devices include a terminal and a network device.
  • the terminal may be the terminal provided in FIG. 15 and is used to perform the steps of the terminal in the method for determining the carrier aggregation capability of the terminal provided in FIGS. 3 to 14.
  • the network device may be the network device provided in FIG. 16, and is used to perform the steps of the network device in the method for determining the carrier aggregation capability of the terminal provided in FIGS. 3 to 14.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmission to another website, computer, server or data center via wired (eg coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including a server, a data center, and the like integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)) or the like.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a DVD
  • a semiconductor medium for example, a solid state disk (SSD)
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (read-only memory (ROM) or a random access memory (random access memory, RAM)

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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de détermination de la capacité d'agrégation de porteuses (CA) sur un terminal, ainsi qu'un dispositif associé. L'invention réduit le nombre de combinaisons de CA signalées par un terminal, et évite le problème dans lequel une station de base ne peut pas analyser toutes les combinaisons de CA signalées par le terminal, ce qui évite ainsi des problèmes de compatibilité et garantit le taux de réussite du terminal accédant à un réseau. Ledit procédé comprend les étapes suivantes : un terminal reçoit des informations de CA concernant une cellule envoyée par un dispositif de réseau, les informations de CA comprenant une liste de bandes de fréquences de CA où une cellule secondaire de la cellule est située ou une première liste de combinaisons de CA prises en charge par la cellule ; et le terminal détermine une seconde liste de combinaisons de CA en fonction des informations de CA envoyées par le dispositif de réseau et une combinaison de CA prise en charge par le terminal lui-même, puis il envoie la seconde liste de combinaisons de CA au dispositif de réseau, la seconde liste de combinaisons de CA étant utilisée par le dispositif de réseau pour déterminer la capacité de CA du terminal.
PCT/CN2019/128844 2018-12-27 2019-12-26 Procédé de détermination de la capacité d'agrégation de porteuses sur un terminal, et dispositif associé Ceased WO2020135626A1 (fr)

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CN113038454B (zh) * 2021-02-25 2023-03-21 Oppo广东移动通信有限公司 能力信息的上报方法、装置、移动终端、基站和通信系统
WO2022214032A1 (fr) * 2021-04-09 2022-10-13 华为技术有限公司 Procédé d'envoi et de réception d'informations et appareil de communication
CN115278887A (zh) * 2021-04-30 2022-11-01 中国移动通信有限公司研究院 工作频段的配置方法、选择方法、网络侧设备及终端
WO2022252047A1 (fr) * 2021-05-31 2022-12-08 Oppo广东移动通信有限公司 Procédé et appareil de transfert intercellulaire et dispositif terminal
CN113438643B (zh) * 2021-06-24 2022-04-22 荣耀终端有限公司 终端能力上报系统、方法、电子设备及存储介质
WO2023236036A1 (fr) * 2022-06-07 2023-12-14 北京小米移动软件有限公司 Procédé et appareil de transmission d'informations de configuration, et support d'enregistrement lisible
CN119865926A (zh) * 2023-10-13 2025-04-22 荣耀终端股份有限公司 一种通信方法

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