WO2023230935A1 - Procédé et appareil de reprise sur défaillance de groupe de cellules - Google Patents

Procédé et appareil de reprise sur défaillance de groupe de cellules Download PDF

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Publication number
WO2023230935A1
WO2023230935A1 PCT/CN2022/096494 CN2022096494W WO2023230935A1 WO 2023230935 A1 WO2023230935 A1 WO 2023230935A1 CN 2022096494 W CN2022096494 W CN 2022096494W WO 2023230935 A1 WO2023230935 A1 WO 2023230935A1
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WIPO (PCT)
Prior art keywords
cell group
activation
scg
mcg
failure
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PCT/CN2022/096494
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English (en)
Chinese (zh)
Inventor
熊艺
吴昱民
Original Assignee
北京小米移动软件有限公司
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 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/096494 priority Critical patent/WO2023230935A1/fr
Priority to CN202280001904.9A priority patent/CN117501802A/zh
Publication of WO2023230935A1 publication Critical patent/WO2023230935A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to a recovery method and device for cell group failure.
  • Dual connectivity (DC) terminal equipment can access two cell groups, namely the master cell group (MCG) and the secondary cell group (SCG).
  • MCG corresponds to the network-side master node.
  • SCG corresponds to the network side secondary node (secondary node, SN).
  • the terminal device can selectively activate MCG or SCG through selective activation of cell groups to achieve mobility management of the cell group.
  • MCG or SCG activation fails, how to perform failure recovery is an issue that needs to be solved urgently.
  • Embodiments of the present disclosure provide a recovery method and device for cell group failure.
  • embodiments of the present disclosure provide a recovery method for cell group failure.
  • the method is executed by a terminal device.
  • the method includes:
  • the first cell group failure recovery process is started, wherein the first cell group includes the main cell group MCG and the secondary cell One of the group SCG.
  • the terminal device when the terminal device is configured with cell group selective activation and the first cell group activation fails, the terminal device can initiate the first cell group failure recovery process to restore or release the connection of the first cell group, thereby ensuring Reliability of terminal device connections.
  • the process of initiating the first cell group failure recovery includes:
  • the terminal device In response to the transmission of the second cell group being unavailable and the first cell group being MCG, the terminal device enters the idle state; or,
  • the second cell group is the other one of the MCG and SCG except the first cell group.
  • the first cell group failure information includes any of the following: MCG failure information, SCG failure information.
  • the transmission of the second cell group is available, including: SCG transmission is not suspended, or SCG is not deactivated, or MCG transmission is not stopped, or MCG-related radio bearer transmission is available.
  • Optional also includes:
  • a message sent by the network device is received through the second cell group transmission, wherein the message is used to restore the first cell group connection or release the first cell group connection.
  • restoring the first cell group connection includes maintaining the first cell group or accessing a new first cell group.
  • a radio resource control RRC release message receives any of the following messages sent by the network device: a radio resource control RRC release message, an RRC reconfiguration message, and a mobility-related RRC message.
  • reporting the first cell group failure information to the network device through the second cell group transmission includes:
  • the SCG failure information is reported to the network device through SRB1.
  • the first cell group failure information includes a failure reason.
  • the failure reason may be any of the following: MCG activation failure, SCG activation failure, or cell group activation failure.
  • Optional also includes:
  • the failure recovery process is started; or,
  • Optional also includes:
  • the failure recovery process is started.
  • the failure recovery process includes at least one of the following:
  • the terminal device In response to MCG failure, the terminal device enters the idle state; or,
  • control the terminal device In response to MCG failure, control the terminal device to fall back to the terminal configuration when it is located in the source primary cell; or,
  • Optional also includes:
  • the first cell group activation process includes evaluating an activation event of the first cell group
  • the second cell group activation process includes evaluating an activation event of the second cell group.
  • embodiments of the present disclosure provide a recovery method for cell group failure.
  • the method is executed by a network device.
  • the method includes:
  • the terminal equipment has started the first cell group failure recovery process, wherein the terminal equipment is configured with selective activation of a cell group and the activation of the first cell group fails, the first cell group is the main cell group MCG and the secondary cell One of the group SCG.
  • the network device can determine that the terminal device has initiated the first cell group failure recovery process, and then the network device can instruct the terminal device to restore or release the first cell group, thereby ensuring the reliability of the connection of the terminal device.
  • the determination that the terminal device has initiated the first cell group failure recovery process includes:
  • the terminal device In response to receiving the first cell group failure information reported by the terminal device through the second cell group transmission, it is determined that the terminal device has initiated the first cell group failure recovery process, wherein the second cell group is the MCG and another one in the SCG other than the first cell group.
  • Optional also includes:
  • a message sent to the terminal device is transmitted through the second cell group, where the message is used to restore the first cell group connection or release the first cell group connection.
  • restoring the first cell group connection includes maintaining the first cell group or accessing a new first cell group.
  • any of the following messages is sent to the terminal device: radio resource control RRC release message, RRC reconfiguration message, and mobility-related RRC message.
  • embodiments of the present disclosure provide a communication device applied to terminal equipment, including:
  • a processing module configured to, in response to the terminal device being configured with cell group selective activation and the activation of the first cell group failing, start the first cell group failure recovery process, wherein the first cell group is the primary cell One of the group MCG and the secondary cell group SCG.
  • processing module is used for:
  • the terminal equipment In response to the transmission of the second cell group being unavailable and the first cell group being MCG, the terminal equipment enters the idle state; or,
  • the second cell group is the other one of the MCG and SCG except the first cell group.
  • the first cell group failure information includes any of the following: MCG failure information, SCG failure information.
  • the transmission of the second cell group is available, including: SCG transmission is not suspended, or SCG is not deactivated, or MCG transmission is not stopped, or MCG-related radio bearer transmission is available.
  • Optional also includes:
  • a transceiver module configured to receive a message sent by the network device through the second cell group transmission, where the message is used to restore the first cell group connection or release the first cell group connection.
  • restoring the first cell group connection includes maintaining the first cell group or accessing a new first cell group.
  • a radio resource control RRC release message receives any of the following messages sent by the network device: a radio resource control RRC release message, an RRC reconfiguration message, and a mobility-related RRC message.
  • processing module is used for:
  • the SCG failure information is reported to the network device through SRB1.
  • the first cell group failure information includes a failure reason.
  • the failure reason may be any of the following: MCG activation failure, SCG activation failure, or cell group activation failure.
  • processing module is also used for:
  • the failure recovery process is started; or,
  • processing module is also used for:
  • the failure recovery process is started.
  • the failure recovery process includes at least one of the following:
  • the terminal device In response to MCG failure, the terminal device enters the idle state; or,
  • control the terminal device In response to MCG failure, control the terminal device to fall back to the terminal configuration when it is located in the source primary cell; or,
  • processing module is also used for:
  • the first cell group activation process includes evaluating an activation event of the first cell group
  • the second cell group activation process includes evaluating an activation event of the second cell group.
  • an embodiment of the present disclosure provides a communication device applied to network equipment, including:
  • a processing module configured to determine that the terminal device has initiated the first cell group failure recovery process, wherein the terminal device is configured with selective activation of the cell group and the activation of the first cell group fails, and the first cell group is the main cell.
  • processing module is used for:
  • the terminal device In response to receiving the first cell group failure information reported by the terminal device through the second cell group transmission, it is determined that the terminal device has initiated the first cell group failure recovery process, wherein the second cell group is the MCG and another one in the SCG other than the first cell group.
  • Optional also includes:
  • a transceiver module configured to transmit a message sent to the terminal device through the second cell group, where the message is used to restore the first cell group connection or release the first cell group connection.
  • restoring the first cell group connection includes maintaining the first cell group or accessing a new first cell group.
  • any of the following messages is sent to the terminal device: radio resource control RRC release message, RRC reconfiguration message, and mobility-related RRC message.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the first aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the second aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the first aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.
  • embodiments of the present disclosure provide a system for recovering from cell group failure.
  • the system includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect.
  • embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.
  • embodiments of the present invention provide a readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the network device is caused to perform the method described in the second aspect. .
  • the present disclosure also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.
  • the present disclosure also provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the second aspect.
  • the present disclosure provides a chip system, which includes at least one processor and an interface for supporting a terminal device to implement the functions involved in the first aspect, for example, determining or processing data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present disclosure provides a chip system, which includes at least one processor and an interface for supporting a network device to implement the functions involved in the second aspect, for example, determining or processing data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the network device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present disclosure provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.
  • the present disclosure provides a computer program that, when run on a computer, causes the computer to perform the method described in the second aspect.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure
  • Figure 2 is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure
  • Figure 3 is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure
  • Figure 4 is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure
  • Figure 5 is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure.
  • Figure 6 is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure.
  • Figure 7 is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure.
  • Figure 8 is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure.
  • Figure 9 is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure.
  • Figure 10 is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure.
  • Figure 11 is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure.
  • Figure 12a is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure.
  • Figure 12b is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure.
  • Figure 12c is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure.
  • Figure 13 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.
  • Figure 14 is a schematic structural diagram of another communication device provided by an embodiment of the present disclosure.
  • Figure 15 is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.
  • Conditional primary and secondary cell addition conditional PSCell addition, CPA
  • the terminal device can determine the PSCell that can be added based on preconfigured conditions.
  • the terminal device can realize the mobility of the secondary cell group (SCG) by executing CPA.
  • SCG secondary cell group
  • Conditional primary and secondary cell change conditional PSCell change, CPC
  • the terminal device can determine the accessible target PSCell based on preconfigured conditions.
  • the terminal device can realize SCG mobility by executing CPC.
  • a terminal device can link to two network devices at the same time, where the network device used to mainly control the communication of the terminal device is called the master node MN.
  • a terminal device can link to two network devices at the same time.
  • the network device used to assist the terminal device in communicating is called a secondary node SN.
  • the network device may provide a preconfigured candidate target cell group or target cell to the terminal device.
  • the subsequent terminal device can activate or deactivate the preconfigured candidate cell group or cell according to the configuration (such as activation message) issued by the network device or the corresponding activation event, without re-providing the configuration of the cell group.
  • the terminal device in cell group selective activation, after activating a new cell or cell group, or applying a new cell configuration or cell group configuration, or after accessing a new cell or cell group, the terminal device will not delete the corresponding cell.
  • Configuration information for group selective activation after activating a new cell or cell group, or applying a new cell configuration or cell group configuration, or after accessing a new cell or cell group.
  • the configuration information for cell group activation may include: a configuration ID and the configuration of the target cell or the configuration of the target cell group.
  • the configuration information for cell group activation may also include trigger conditions (which may also be called execution conditions and activation conditions).
  • cell group activation is a mobility management process, including any activation configuration by configuring a cell group.
  • the terminal device activates according to the signaling sent by the network, or the criteria specified by the protocol, or by the terminal device autonomously. Or deactivate the corresponding cell or cell group, or apply the corresponding cell configuration or cell group configuration or access the mobility management process of the cell or cell group.
  • cell group activation is a mobility management process, including any mobility management process that does not delete or release corresponding part or all of the configuration information after executing the mobility process. Not deleting or releasing the corresponding part or all of the configuration information can also be called retaining the corresponding part or all of the configuration information.
  • FIG. 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include but is not limited to one network device and one terminal device.
  • the number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more devices may be included. network equipment, two or more auxiliary communication equipment, two or more terminal equipment.
  • the communication system shown in Figure 1 includes a master node 11, a terminal device 12 and a slave node 13 as an example.
  • LTE long term evolution
  • 5th generation fifth generation
  • 5G new radio (NR) system 5th generation new radio
  • the master node 11 and the slave node 13 in the embodiment of the present disclosure are entities on the network side that are used to transmit or receive signals, and they may be the master node and slave node corresponding to the terminal device 12 respectively.
  • the primary node 11 and the secondary node 13 can be respectively an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in the NR system, and other future mobile Base stations in communication systems or access nodes in wireless fidelity (WiFi) systems, etc.
  • eNB evolved NodeB
  • TRP transmission reception point
  • gNB next generation base station
  • WiFi wireless fidelity
  • the embodiments of the present disclosure do not limit the specific technologies and specific equipment forms used by network equipment.
  • the network equipment provided by the embodiments of the present disclosure may be composed of a centralized unit (CU) and a distributed unit (DU).
  • the CU may also be called a control unit (control unit).
  • CU-DU is used.
  • the structure can separate the protocol layers of network equipment, such as base stations, and place some protocol layer functions under centralized control on the CU. The remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.
  • the terminal device 12 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc.
  • the terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc.
  • the embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal equipment.
  • the terminal device when the terminal device fails to selectively activate the cell group, it can report the cell group failure information to the network device, and the network device has been notified that the cell group activation failure has occurred. Therefore, the network device can instruct the terminal device to perform different failure recovery processes according to the cell group failure information to restore or release the connection of the cell group, thereby ensuring the reliability of cell group mobility management.
  • the network device can be the master node MN, etc., and this disclosure does not limit this.
  • the cell group is one or more of a main cell group (MCG) and a secondary cell group (SCG).
  • MCG includes one or more of the primary cell (Primary Cell, PCell) and the secondary cell (Secondary Cell, SCell).
  • SCell Secondary Cell
  • PSCell Primary Secondary Cell
  • SCell Secondary Cell
  • cell group selective activation may include cell selective activation or cell activation, for example, one or more of PCell activation, PSCell activation, and SCell activation.
  • a cell group failure recovery method provided in any embodiment can be executed alone, or in combination with possible implementation methods in other embodiments, or in combination with methods in related technologies. Either technical solution is implemented together.
  • a cell group failure recovery method and device thereof provided by the present disclosure will be introduced in detail below with reference to the accompanying drawings.
  • Figure 2 is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 2, the method may include but is not limited to the following steps:
  • Step 201 In response to the terminal device being configured with cell group selective activation and the activation of the first cell group failing, start the first cell group failure recovery process, where the first cell group is among the primary cell group MCG and the secondary cell group SCG. one of.
  • the activation failure of the first cell group may be an MCG activation failure or an SCG activation failure.
  • MCG synchronization reconfiguration fails, or the MCG activation timer times out
  • SCG addition fails, or the SCG change fails, or the SCG activation timer times out
  • SCG activation timer times out it can be determined that the SCG activation fails.
  • the first failure recovery process may include restoring the connection process of the first cell group, or releasing the connection process of the first cell group, etc., which is not limited by this disclosure.
  • the network device can pre-configure the candidate target cell group or target cell to the terminal device, and the subsequent terminal device can activate or deactivate the candidate target cell according to the signaling sent by the network, or the criteria specified by the protocol, or the terminal device autonomously, etc.
  • the cell group fails to change, thus affecting the reliability of the connection of the terminal equipment and thus affecting the communication performance.
  • the terminal device can trigger the cell group failure recovery process, for example, by sending the first cell group failure information to the network device, or Execute other first cell group failure recovery procedures. Therefore, the terminal device performs the first cell group failure recovery process to restore or release the connection of the first cell group, thereby ensuring the reliability of the connection of the terminal device.
  • the terminal device when the terminal device is configured with cell group selective activation and the first cell group activation fails, the terminal device can initiate the first cell group failure recovery process to restore or release the connection of the first cell group, thereby ensuring The reliability of the connection of the terminal equipment.
  • Figure 3 is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 3, the method may include but is not limited to the following steps:
  • Step 301 In response to the terminal device being configured with cell group selective activation and the first cell group activation failing, if the transmission of the second cell group is available, report the first cell group to the network device through the second cell group transmission. Failure information, wherein the first cell group is one of the main cell group MCG and the secondary cell group SCG, and the second cell group is the other one of the MCG and SCG except the first cell group.
  • the first cell group failure information may include MCG failure information or SCG failure information.
  • MCG failure information and SCG failure information may include failure reasons and other information.
  • MCG activation fails the failure reason in the MCG failure information is MCG activation failure.
  • SCG activation fails the failure reason in the SCG failure information is SCG activation failure.
  • the failure reason can also be directly included in the MCG failure information or SCG failure information as cell group activation failure.
  • the MCG failure information includes the failure reason as cell group activation failure, it can be determined that the MCG activation failed.
  • SCG failure information contains When the failure reason is cell group activation failure, it can be determined that SCG activation failed.
  • the terminal device when the terminal device is configured with selective activation of the cell group and the activation of the primary cell group MCG fails, if the transmission of the secondary cell group SCG is available, the failure of the first cell group can be reported to the network device through SCG transmission.
  • Information wherein the first cell group failure information may include MCG failure information. Therefore, after receiving the first cell group failure information, the network device can determine that the MCG activation failed based on the failure reason in the first cell group failure information, and then instruct the terminal device to restore the MCG connection or release the MCG connection. This ensures the reliability of MCG mobility management.
  • the transmission of the secondary cell group SCG is available when the SCG transmission is not suspended or the SCG is not deactivated.
  • the terminal device when the terminal device is configured with cell group selective activation and the secondary cell group SCG fails to activate, if the transmission of the primary cell group MCG is available, the first cell group failure information can be reported to the network device through MCG transmission.
  • the first cell group failure information may include SCG failure information. Therefore, after receiving the first cell group failure information, the network device can determine the SCG activation failure based on the failure reason in the first cell group failure information, and then instruct the terminal device to restore the SCG connection or release the SCG connection. This ensures the reliability of SCG mobility management.
  • the T316 timer when the activation of the primary cell group MCG fails and the transmission of the secondary cell group SCG is available, the T316 timer can be started and the failure of the first cell group can be reported to the network device through SCG transmission.
  • Information, wherein the first cell group failure information may include MCG failure information to indicate that MCG activation failure occurs.
  • MCG failure information can be reported to the network device through the third signaling radio bearer (SRB3).
  • SRB3 third signaling radio bearer
  • the MCG failure information can also be reported to the network device through the SCG branch of the separate first signaling wireless bearer SRB1.
  • SCG failure information can be reported to the network device through SRB1.
  • the network device can determine that the MCG or SCG activation fails based on the first cell group failure information, and then instructs the terminal device to restore the connection of the corresponding cell group, thereby ensuring the reliability of the connection of the terminal device.
  • Figure 4 is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 4, the method may include but is not limited to the following steps:
  • Step 401 In response to the terminal device being configured with cell group selective activation and the activation of the first cell group failing, start the first cell group reestablishment process, in which the first cell group is the primary cell group MCG and the secondary cell group SCG.
  • the second cell group is the other one of MCG and SCG except the first cell group.
  • the terminal device when the terminal device is configured with cell group selective activation and the main cell group MCG activation fails, the terminal device can start the MCG reconstruction process to restore the MCG connection, thereby ensuring the reliability of MCG mobility management.
  • the terminal device when the terminal device is configured with cell group selective activation and the activation of the primary cell group MCG fails, when the transmission of the secondary cell group SCG is unavailable, the terminal device can start the MCG reconstruction process to restore the MCG. connection to ensure the reliability of MCG mobility management.
  • the SCG reconstruction process can be started to restore the SCG connection, thereby ensuring Reliability of SCG mobility management.
  • the SCG reestablishment process can be started to restore the SCG connection, thereby ensuring the reliability of SCG mobility management.
  • the first cell group reestablishment process can be started to restore the connection of the first cell group, thereby ensuring the reliability of the connection of the terminal device. sex.
  • Figure 5 is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 5, the method may include but is not limited to the following steps:
  • Step 501 In response to the terminal device being configured with cell group selective activation and the activation of the first cell group failing, the terminal device enters the idle state when the transmission of the second cell group is unavailable and the first cell group is MCG. , wherein the first cell group is one of the main cell group MCG and the secondary cell group SCG, and the second cell group is the other one of the MCG and SCG except the first cell group.
  • the terminal device when the terminal device is configured with cell group selective activation and the activation of the primary cell group MCG fails, when the transmission of the secondary cell group SCG is unavailable, the terminal device can enter the idle state to avoid MCG connection errors. , thereby ensuring the reliability of MCG mobility management.
  • the terminal device when the terminal device is configured with cell group selective activation, and the first cell group activation fails, and the transmission of the second cell group is unavailable, and the first cell group is MCG, the terminal device enters the idle state. to avoid MCG connection errors and ensure the reliability of the connection of terminal equipment.
  • Figure 6 is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 6, the method may include but is not limited to the following steps:
  • Step 601 In response to the terminal device being configured with cell group selective activation and the activation of the first cell group fails, if the first cell group is an SCG, release the SCG, where the first cell group is the main cell group MCG and One of the secondary cell groups SCG, the second cell group is the other one of the MCG and SCG except the first cell group.
  • the terminal device when the terminal device is configured with cell group selective activation and the secondary cell group SCG activation fails, the terminal device can release the SCG to avoid SCG connection errors, thereby ensuring the reliability of SCG mobility management.
  • the terminal device when the terminal device is configured with cell group selective activation and the secondary cell group SCG activation fails, the terminal device can release the SCG when the primary cell MCG is unavailable to avoid SCG connection errors, thereby ensuring SCG mobility. Management reliability.
  • a terminal device when a terminal device is configured with cell group selective activation and the first cell group activation fails, when the first cell group is SCG, the SCG is released to avoid SCG connection errors, thereby ensuring the connection of the terminal device reliability.
  • Figure 7 is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 7, the method may include but is not limited to the following steps:
  • Step 701 In response to the terminal device being configured with cell group selective activation and the first cell group activation failing, if the transmission of the second cell group is available, the first cell can be reported to the network device through the second cell group transmission.
  • Group failure information wherein the first cell group is one of the main cell group MCG and the secondary cell group SCG, and the second cell group is the other one of the MCG and SCG except the first cell group.
  • step 701 for the specific implementation process of step 701, please refer to the detailed description of any embodiment of this disclosure, and will not be described again here.
  • Step 702 Receive a message sent by the network device through the second cell group transmission, where the message is used to restore the first cell group connection or release the first cell group connection.
  • the network device after receiving the first cell group failure information reported by the terminal device, the network device can send a message to the terminal device through the second cell group transmission to restore the first cell group connection or release the first cell group connection. . Afterwards, the terminal device can restore the first cell group connection or release the first cell group connection according to the message, thereby ensuring the reliability of MCG mobility management.
  • the restoration of the first cell group connection may be to maintain the first cell group (ie, reconnect to the first cell group whose activation failed), or to access a new first cell group, and this disclosure does not limit this.
  • the message used to restore the first cell group connection or release the first cell group connection can be any of the following messages sent by the network device: radio resource control (radio resource control, RRC) release message (RRCRelease message), RRC Reconfiguration message (RRCReconfiguration message), mobility-related RRC message, etc.
  • radio resource control radio resource control, RRC
  • RRC radio resource control
  • RRCRelease message RRC Reconfiguration message
  • mobility-related RRC message etc.
  • the mobility-related RRC message can be one or more of the following: RRCConnectionReconfiguration message, MobilityFromNRCommand message from NR, MobilityFromEUTRACommand message, RRC Connection release message (RRCConnectionRelease message).
  • the terminal device when the terminal device receives the RRC reconfiguration message, the terminal device resumes MCG transmission for the corresponding radio bearer.
  • the terminal device when the terminal device receives the RRC release message, the terminal device releases the corresponding radio bearer and configuration.
  • the T316 timer when the terminal device receives any RRC message sent by the network device, such as an RRC reconfiguration message, the T316 timer can be stopped.
  • the RRC reestablishment process can be started to restore the connection of the cell group.
  • the terminal device when the terminal device is configured with cell group selective activation and the first cell group activation fails, if the transmission of the second cell group is available, the first cell group transmission can be reported to the network device through the second cell group transmission. After receiving the cell group failure information, a message sent by the network device for resuming the first cell group connection or releasing the first cell group connection can be received through the second cell group transmission.
  • the terminal device can recover according to the instructions of the network device. Or release the first cell group to ensure the reliability of the connection of the terminal equipment.
  • Figure 8 is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 8, the method may include but is not limited to the following steps:
  • Step 801 In response to the terminal device being configured with cell group selective activation, when the terminal device triggers activation of the first cell group and the activation fails, a failure recovery process may be started.
  • the terminal device can trigger activation of the first cell group if the preconfigured activation event is met.
  • a failure recovery process can be started to restore the connection of the cell group, thereby ensuring the reliability of mobility management of the cell group.
  • the terminal device can trigger activation of the first cell group when receiving an activation command issued by the network.
  • a failure recovery process can be started to restore the connection of the cell group, thereby ensuring the reliability of the connection of the terminal equipment.
  • the terminal device can trigger activation of the first cell group according to protocol provisions or other criteria or methods, which is not limited in this embodiment.
  • a failure recovery process can be started to restore the connection of the cell group, thereby ensuring the reliability of the connection of the terminal equipment.
  • the corresponding failure recovery process may be different in different scenarios.
  • the failure recovery process corresponding to the activation failure of the first cell group may be determined through protocol agreement or network device instructions, etc., which is not limited by the present invention.
  • the terminal device when MCG activation fails, can enter the idle state, or the terminal device can fall back to the terminal configuration when it is located in the source primary cell, or the terminal device can also send a reconstruction request to the network device.
  • the terminal device can release the SCG, or the terminal device can fall back to the terminal configuration when it is located in the source primary and secondary cells, or the terminal device can also send a reconstruction request to the network device.
  • the failure recovery process can be started to restore the connection of the first cell group, This ensures the reliability of the connection of terminal equipment.
  • Figure 9 is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 9, the method may include but is not limited to the following steps:
  • Step 901 In response to the terminal device being configured with a cell group selective activation configuration, SCG activation and MCG activation being triggered at the same time, and one of the SCG and MCG activation failing, start a failure recovery process.
  • the failure recovery process can be started.
  • the terminal device triggers SCG activation and MCG activation at the same time.
  • MCG activation fails, the terminal device can enter the idle state, or the terminal device can also fall back to the terminal configuration when it is located in the source main cell, or, The end device can also send a rebuild request to the network device.
  • the terminal device triggers SCG activation and MCG activation at the same time.
  • SCG activation fails, the terminal device can release the SCG, or the terminal device can also fall back to the terminal configuration when it is located in the source primary and secondary cells, or, The end device can also send a rebuild request to the network device.
  • the terminal device can also send a reestablishment request to the network device to restore the connection of the cell group, or the terminal device can enter the idle state, or the terminal device can release the SCG, etc. . This ensures the reliability of cell group mobility management.
  • the failure recovery process can be started to restore or release the cell group. connection to ensure the reliability of the connection of terminal equipment.
  • Figure 10 is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 10, the method may include but is not limited to the following steps:
  • Step 1001 In response to the terminal device being configured with cell group selective activation and the activation of the first cell group failing, start the first cell group failure recovery process, where the first cell group is among the primary cell group MCG and the secondary cell group SCG. one of.
  • step 1001 for the specific implementation process of step 1001, please refer to the detailed description of any embodiment of this disclosure, and will not be described again here.
  • Step 1002 During the process of starting the first cell group failure recovery process, stop executing the first cell group activation process and/or the second cell group activation process.
  • the first cell group activation process may include evaluating the activation event of the first cell group, and the second cell group activation process may include evaluating the activation event of the second cell group, which is not limited by this disclosure.
  • the terminal device may stop executing the first cell group activation process and/or the second cell group activation process when sending the first cell group failure message.
  • the terminal device may stop executing the first cell group activation process and/or the second cell group activation process.
  • the terminal device when the terminal device sends an MCG failure message, it can stop evaluating the MCG activation event and/or evaluate the SCG activation event.
  • the terminal device sends the SCG failure message it may stop executing the evaluation of the MCG activation event and/or the evaluation of the SCG activation event.
  • the terminal device is configured to activate MCG and SCG at the same time, when the terminal device sends an MCG failure message or an SCG failure message, it can stop evaluating the MCG activation event and evaluating the SCG activation event.
  • the first cell group failure recovery process can be started, and in the process of starting the first cell group failure recovery process, Stop executing the first cell group activation process and/or the second cell group activation process. This ensures the reliability of the connection of terminal equipment.
  • Figure 11 is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 11, the method may include but is not limited to the following steps:
  • Step 1101 In response to the terminal device being configured with cell group selective activation and the activation of the first cell group failing, start the first cell group failure recovery process, where the first cell group is among the primary cell group MCG and the secondary cell group SCG. one of.
  • step 1101 for the specific implementation process of step 1101, please refer to the detailed description of any embodiment of this disclosure, and will not be described again here.
  • Step 1102 In response to the failure of the first cell group failure recovery process, start the failure recovery process.
  • the terminal device after the terminal device starts the first cell group failure recovery process, and then fails to execute the first cell group failure recovery process, the terminal device can also execute the failure recovery process.
  • the failure recovery process may be a failure recovery process indicated by protocol agreement or network device instructions.
  • the terminal device when MCG activation fails, can enter the idle state after failing to perform the MCG failure recovery process, or it can fall back to the terminal configuration when it is located in the source primary cell, or it can also report to the network device Send a rebuild request.
  • the terminal device when the SCG activation fails and the terminal device fails to perform the SCG failure recovery process, it can release the SCG, or it can fall back to the terminal configuration when it is located in the source primary and secondary cells, or it can also report to the network device Send a rebuild request.
  • the first cell group failure recovery process when the terminal device is configured with cell group selective activation and the first cell group activation fails, the first cell group failure recovery process can be started. After that, when the first cell group failure recovery process fails, the first cell group failure recovery process can be started. The recovery process is used to restore or release the connection of the cell group to ensure the reliability of the connection of the terminal equipment.
  • Figure 12a is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in Figure 12a, the method may include but is not limited to the following steps:
  • Step 1201a determine that the terminal device has initiated the first cell group failure recovery process, in which the terminal device is configured with selective activation of the cell group and the activation of the first cell group fails.
  • the first cell group is the main cell group MCG and the secondary cell group. One of the SCG.
  • the activation failure of the first cell group may be an MCG activation failure or an SCG activation failure.
  • MCG synchronization reconfiguration fails, or the MCG activation timer times out
  • SCG addition fails, or the SCG change fails, or the SCG activation timer times out
  • SCG activation timer times out it can be determined that the SCG activation fails.
  • the first failure recovery process may include restoring the connection process of the first cell group, or releasing the connection process of the first cell group, etc., which is not limited by this disclosure.
  • the network device can pre-configure the candidate target cell group or target cell to the terminal device, and the subsequent terminal device can activate or deactivate the cell or cell group according to the signaling sent by the network, or the criteria specified by the protocol, or the terminal device autonomously, etc.
  • the network device can pre-configure the candidate target cell group or target cell to the terminal device, and the subsequent terminal device can activate or deactivate the cell or cell group according to the signaling sent by the network, or the criteria specified by the protocol, or the terminal device autonomously, etc.
  • the network device can pre-configure the candidate target cell group or target cell to the terminal device, and the subsequent terminal device can activate or deactivate the cell or cell group according to the signaling sent by the network, or the criteria specified by the protocol, or the terminal device autonomously, etc.
  • the cell group fails to change, thus affecting the reliability of the connection of the terminal equipment and thus affecting the communication performance.
  • the terminal device can trigger the cell group failure recovery process, for example, by sending the first cell group failure information to the network device to trigger the first cell group failure recovery process.
  • the process of recovering from a cell group failure when the network device receives the first cell group failure information sent by the terminal device, it can determine that the terminal device has initiated the first cell group failure recovery process, and then the network device can instruct the terminal device to perform the first cell group failure recovery process.
  • the process is to restore the connection of the first cell group or release the connection of the first cell group, thereby ensuring the reliability of the connection of the terminal equipment.
  • the network device can determine that the terminal device has initiated the first cell group failure recovery process, and then the network device can instruct the terminal device to restore or release the first cell group, thereby ensuring the reliability of the connection of the terminal device.
  • Figure 12b is a schematic flowchart of a cell group failure recovery method provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in Figure 12, the method may include but is not limited to the following steps:
  • Step 1201b Receive the first cell group failure information reported by the terminal device through the second cell group transmission, and determine that the terminal device has initiated the first cell group failure recovery process, where the second cell group is the MCG and SCG except the first cell group. The other one outside.
  • the first cell group failure information may include MCG failure information or SCG failure information.
  • MCG failure information and SCG failure information may include failure reasons and other information.
  • MCG activation fails the failure reason in the MCG failure information is MCG activation failure.
  • SCG activation fails the failure reason in the SCG failure information is SCG activation failure.
  • the failure reason can also be directly included in the MCG failure information or SCG failure information as cell group activation failure.
  • the MCG failure information includes the failure reason as cell group activation failure, it can be determined that the MCG activation failed.
  • SCG failure information contains When the failure reason is cell group activation failure, it can be determined that SCG activation failed.
  • the terminal device when the terminal device is configured with selective activation of the cell group and the activation of the primary cell group MCG fails, if the transmission of the secondary cell group SCG is available, the failure of the first cell group can be reported to the network device through SCG transmission.
  • Information, wherein the first cell group failure information may include MCG failure information.
  • the transmission of the secondary cell group SCG is available when the SCG transmission is not suspended or the SCG is not deactivated.
  • the terminal device when the terminal device is configured with cell group selective activation and the secondary cell group SCG fails to activate, if the transmission of the primary cell group MCG is available, the first cell group failure information can be reported to the network device through MCG transmission.
  • the first cell group failure information may include SCG failure information.
  • the T316 timer when the activation of the primary cell group MCG fails and the transmission of the secondary cell group SCG is available, the T316 timer can be started and the failure of the first cell group can be reported to the network device through SCG transmission.
  • Information, wherein the first cell group failure information may include MCG failure information to indicate that MCG activation failure occurs.
  • MCG failure information can be reported to the network device through the third signaling radio bearer (th3 signaling radio bearer, SRB3). Therefore, the network device can receive the MCG failure information reported by the terminal device through SRB3.
  • the MCG failure information can also be reported to the network device through the SCG branch of the separate first signaling wireless bearer SRB1. Therefore, the network device can receive the MCG failure information reported by the terminal device through the SCG branch of SRB1.
  • SCG failure information can be reported to the network device through SRB1. Therefore, the network device can receive the MCG failure information reported by the terminal device through SRB1.
  • Step 1202b Transmit a message sent to the terminal device through the second cell group, where the message is used to restore the first cell group connection or release the first cell group connection.
  • Restoring the connection to the first cell group may be to maintain the first cell group (ie, reconnect to the second cell group whose activation failed), or to access a new first cell group, and this disclosure does not limit this.
  • a message for restoring the MCG connection or releasing the MCG connection can be sent to the terminal device through SCG transmission. After that, the terminal device The MCG connection can be restored or released based on this message, thereby ensuring the reliability of MCG mobility management.
  • the network device when the network device receives the first cell group failure information containing SCG failure information through MCG transmission, it can send a message to the terminal device through MCG transmission to restore the SCG connection or release the SCG connection. After that, the terminal device can The SCG connection is restored or released according to the message, thereby ensuring the reliability of SCG mobility management.
  • the message sent by the network device to restore the first cell group connection or release the first cell group connection can be any of the following messages: radio resource control (radio resource control, RRC) release message (RRCRelease message), RRC Reconfiguration message (RRCReconfiguration message), mobility-related RRC message, etc.
  • radio resource control radio resource control
  • RRC radio resource control
  • RRCRelease message RRC Reconfiguration message
  • RRCReconfiguration message mobility-related RRC message
  • the mobility-related RRC message can be one or more of the following: RRCConnectionReconfiguration message, MobilityFromNRCommand message from NR, MobilityFromEUTRACommand message, RRC Connection release message (RRCConnectionRelease message).
  • the terminal device when the terminal device receives the RRC reconfiguration message, the terminal device resumes MCG transmission for the corresponding radio bearer.
  • the terminal device when the terminal device receives the RRC release message, the terminal device releases the corresponding radio bearer and configuration.
  • the network device can receive the first cell group failure information reported by the terminal device through the second cell group transmission, determine that the terminal device has initiated the first cell group failure recovery process, and then transmit to the terminal device through the second cell group transmission. Send a message for resuming the first cell group connection or releasing the first cell group connection. Therefore, the terminal device can restore or release the connection of the cell group according to the message, thereby ensuring the reliability of the connection of the terminal device.
  • Figure 12c is a schematic flow chart of a cell group failure recovery method provided by an embodiment of the present disclosure. As shown in Figure 12c, the method may include but is not limited to the following steps:
  • Step 1201c The terminal device receives the MCG activation-related configuration information sent by the network, including activation configuration 1 and activation configuration 2, which respectively correspond to MCG1 to be activated and MCG2 to be activated.
  • the source MCG is MCG0
  • the source SCG is SCG0
  • SCG0 is not suspended or deactivated.
  • Step 1202c The terminal device determines that a wireless link failure corresponding to MCG0 has occurred.
  • Step 1203c The terminal device starts the MCG failure information process, or if T316 is configured, the terminal device starts the MCG failure information process. Among them, the MCG failure information process is used to determine MCG failure information.
  • Step 1204c The terminal device starts T316 and reports MCG failure related information through SCG0, indicating that a wireless link failure of MCG0 has occurred to the UE.
  • Step 1205c The terminal device receives the RRC reconfiguration message sent by the network device, which includes synchronization reconfiguration, and stops T316.
  • the MCG failure related information can be reported to the network device.
  • the network device can also issue an RRC reconfiguration message. , to instruct the terminal device to perform recovery or release MCG, thereby ensuring the reliability of the connection of the terminal device.
  • cell group failure recovery can be achieved in the following ways:
  • MCG failure information MCG failure information
  • the failure reason is MCG activation failure, and the failure reason can be included in the MCG failure information. If SCG transmission is unavailable, the reconstruction process is started, or the idle state IDLE is entered.
  • the UE When selective activation of a cell group is configured, if the UE fails to activate the SCG, it can report the SCG failure information (SCGFailureInformation) through the MCG to restore the SCG connection.
  • SCG failure information SCGFailureInformation
  • the failure reason is SCG activation failure.
  • the failure reason can be included in the SCG failure information. If MCG transmission is unavailable, the reconstruction process is started or the SCG is released.
  • the terminal device when configured with cell group selective activation, if the UE fails to activate MCG, the MCG connection can be restored by reporting MCG failure information.
  • the terminal device can start a process related to MCG failure and report the MCG failure.
  • the SCG transmission available may include that the SCG transmission is not suspended and the SCG is not deactivated.
  • the MCG failure related process may include an MCG failure information process, which is used to notify the network device of the MCG failure encountered by the terminal device.
  • MCG failure can be reported by reporting MCG failure information (MCGFailureInformation), where the failure reason can be MCG activation failure, and the failure reason can be included in the MCG failure information.
  • MCG failure information MCG failure information (MCGFailureInformation)
  • the terminal device can report MCG failure through SCG to inform the network device that an MCG failure has occurred.
  • the network After receiving the MCG failure message, the network sends a message to the terminal device through SCG to restore or release the MCG connection.
  • the messages sent by the network device to the terminal device through the SCG may be RRC release, RRC reconfiguration messages, mobility-related RRC messages, etc.
  • the MCG failure message and recovery message can be sent to the UE via SRB3 or the SCG branch of split SRB1.
  • the terminal device when configured with selective activation of a cell group, if the terminal device fails to activate the SCG, the SCG connection can be restored by reporting SCG failure information.
  • the terminal device can initiate a process related to SCG failure and report the SCG failure.
  • MCG transmission is available may include that MCG transmission is not stopped, or related radio bearer transmission is available.
  • the SCG failure related process may include an SCG failure information process, which is used to notify the network device that an SCG failure has occurred in the terminal device.
  • SCG failure can also be reported by reporting SCG failure information (SCGFailureInformation), where the failure reason can be SCG activation failure, and the failure reason can be included in the SCG failure information.
  • SCGFailureInformation SCG failure information
  • the terminal device can report the SCG failure to the network device, for example, send the SCG failure message to the MN to inform the network device that the SCG failure has occurred in the terminal device.
  • the network device can decide Reserve, change or release SN/SCG.
  • the above terminal device performs activation of MCG and/or SCG. Failure to activate MCG and/or SCG may include:
  • the MCG activation fails.
  • the synchronization reconfiguration corresponding to the MCG fails.
  • the timer corresponding to MCG activation times out; or
  • SCG activation fails, for example, SCG addition fails or SCG change fails; or
  • MCG activation failure SCG activation failure
  • MCG and SCG activation failure may occur.
  • the terminal device can restore the connection by reporting corresponding failure information.
  • the terminal device can perform cell group failure recovery by executing other failure recovery procedures.
  • failure recovery processes can include any one or more of the following:
  • the terminal device can enter the idle state; or
  • the terminal device can release the SCG;
  • the terminal device sends a reestablishment request message to the network, requesting to reestablish the RRC connection;
  • the terminal device restores the connection through the selective activation configuration of the cell group.
  • the terminal device when the terminal device sends MCG failure information or SCG failure information, the terminal device stops executing MCG activation and/or SCG activation related processes.
  • the terminal device when the terminal device sends MCG failure information, for event-based triggering of MCG activation, the terminal device stops evaluating the MCG activation event. and/or for event-based triggering of SCG activation, the terminal device stops evaluating SCG activation events.
  • the terminal device when the terminal device sends SCG failure information, for event-based triggering of SCG activation, the terminal device stops evaluating the SCG activation event.
  • the terminal device when the terminal device is configured with MCG and SCG activated simultaneously, and when the terminal device sends MCG failure information or SCG failure information, the terminal device stops evaluating MCG and SCG activation based on event triggering. MCG and SCG activation events.
  • FIG. 13 is a schematic structural diagram of a communication device 1300 provided by an embodiment of the present disclosure.
  • the communication device 1300 shown in FIG. 13 may include a processing module 1301 and a transceiver module 1302.
  • the transceiving module 1302 may include a sending module and/or a receiving module.
  • the sending module is used to implement the sending function
  • the receiving module is used to implement the receiving function.
  • the transceiving module 1302 may implement the sending function and/or the receiving function.
  • the communication device 1300 may be a terminal device, a device in the terminal device, or a device that can be used in conjunction with the terminal device.
  • the communication device 1300 is on the terminal equipment side, where:
  • the processing module 1301 is configured to initiate the first cell group failure recovery process in response to the terminal device being configured with cell group selective activation and the first cell group activation failing, wherein the first cell group is the primary cell group.
  • processing module 1301 is used for:
  • the terminal device In response to the transmission of the second cell group being unavailable and the first cell group being MCG, the terminal device enters the idle state; or,
  • the second cell group is the other one of the MCG and SCG except the first cell group.
  • the first cell group failure information includes any of the following: MCG failure information, SCG failure information.
  • the transmission of the second cell group is available, including: SCG transmission is not suspended, or SCG is not deactivated, or MCG transmission is not stopped, or MCG-related radio bearer transmission is available.
  • Optional also includes:
  • the transceiving module 1302 is configured to receive a message sent by the network device through the second cell group transmission, where the message is used to restore the first cell group connection or release the first cell group connection.
  • restoring the first cell group connection includes maintaining the first cell group or accessing a new first cell group.
  • a radio resource control RRC release message receives any of the following messages sent by the network device: a radio resource control RRC release message, an RRC reconfiguration message, and a mobility-related RRC message.
  • processing module 1301 is used for:
  • the SCG failure information is reported to the network device through SRB1.
  • the first cell group failure information includes a failure reason.
  • the failure reason may be any of the following: MCG activation failure, SCG activation failure, or cell group activation failure.
  • processing module 1301 is also used for:
  • the failure recovery process is started; or,
  • processing module 1301 is also used for:
  • the failure recovery process is started.
  • the failure recovery process includes at least one of the following:
  • the terminal device In response to MCG failure, the terminal device enters the idle state; or,
  • control the terminal device In response to MCG failure, control the terminal device to fall back to the terminal configuration when it is located in the source primary cell; or,
  • processing module 1301 is also used for:
  • the first cell group activation process includes evaluating an activation event of the first cell group
  • the second cell group activation process includes evaluating an activation event of the second cell group.
  • the terminal device when the terminal device is configured with cell group selective activation and the first cell group activation fails, the terminal device can initiate the first cell group failure recovery process to restore or release the connection of the first cell group, thereby ensuring Reliability of terminal device connections.
  • the communication device 1300 may be a network device, a device in the network device, or a device that can be used in conjunction with the network device.
  • the communication device 1300 is on the network device side, where:
  • the processing module 3101 is used to determine that the terminal device has initiated the first cell group failure recovery process, wherein the terminal device is configured with selective activation of the cell group and the activation of the first cell group fails, and the first cell group is the primary One of the cell group MCG and the secondary cell group SCG.
  • processing module 1301 is used for:
  • the terminal device In response to receiving the first cell group failure information reported by the terminal device through the second cell group transmission, it is determined that the terminal device has initiated the first cell group failure recovery process, wherein the second cell group is the MCG and another one in the SCG other than the first cell group.
  • Optional also includes:
  • the transceiving module 1302 is configured to transmit a message sent to the terminal device through the second cell group, where the message is used to restore the first cell group connection or release the first cell group connection.
  • restoring the first cell group connection includes maintaining the first cell group or accessing a new first cell group.
  • any of the following messages is sent to the terminal device: radio resource control RRC release message, RRC reconfiguration message, and mobility-related RRC message.
  • the network device can determine that the terminal device has initiated the first cell group failure recovery process, and then the network device can instruct the terminal device to restore or release the first cell group, thereby ensuring the reliability of the connection of the terminal device.
  • FIG 14 is a schematic structural diagram of another communication device 1400 provided by an embodiment of the present disclosure.
  • the communication device 1400 may be a terminal device, a network device, a chip, a chip system, or a processor that supports a terminal device to implement the above method, or a chip, a chip system, or a processor that supports a network device to implement the above method.
  • Devices etc. The device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • Communication device 1400 may include one or more processors 1401.
  • the processor 1401 may be a general-purpose processor or a special-purpose processor, or the like.
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
  • the communication device 1400 may also include one or more memories 1402, on which a computer program 1404 may be stored.
  • the processor 1401 executes the computer program 1404, so that the communication device 1400 performs the steps described in the above method embodiments. method.
  • the memory 1402 may also store data.
  • the communication device 1400 and the memory 1402 can be provided separately or integrated together.
  • the communication device 1400 may also include a transceiver 1405 and an antenna 1406.
  • the transceiver 1405 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 1405 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the communication device 1400 may also include one or more interface circuits 1407.
  • the interface circuit 1407 is used to receive code instructions and transmit them to the processor 1401 .
  • the processor 1401 executes the code instructions to cause the communication device 1400 to perform the method described in the above method embodiment.
  • the communication device 1400 is a terminal device: the processor 1401 is used to execute step 201 in Figure 2; step 301 in Figure 3; step 401 in Figure 4; step 501 in Figure 5; step 601 in Figure 6; Figure 7 Step 701 in Figure 8; Step 801 in Figure 8; Step 901 in Figure 9; Steps 1001 and 1002 in Figure 10; Steps 1101 and 1102 in Figure 11, etc.
  • the communication device 1400 is a network device: the transceiver 1405 is used to perform step 1202b and so on in Figure 12b.
  • the communication device 1400 is a network device: the transceiver 1405 is used to perform steps 1201, 1202, etc. in Figure 12.
  • the processor 1401 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 1401 may store a computer program 1403, and the computer program 1403 runs on the processor 1401, causing the communication device 1400 to perform the method described in the above method embodiment.
  • the computer program 1403 may be solidified in the processor 1401, in which case the processor 1401 may be implemented by hardware.
  • the communication device 1400 may include a circuit, which may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processors and transceivers described in this disclosure may be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS n-type metal oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device in the description of the above embodiments may be a terminal device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 14 .
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC collection may also include storage components for storing data and computer programs;
  • the communication device may be a chip or a chip system
  • the schematic structural diagram of the chip shown in FIG. 15 refer to the schematic structural diagram of the chip shown in FIG. 15 .
  • the chip shown in Figure 15 includes a processor 1501 and an interface 1503.
  • the number of processors 1501 may be one or more, and the number of interfaces 1503 may be multiple.
  • Interface 1503 used to execute step 702 in Figure 7 and so on.
  • the chip also includes a memory 1503, which is used to store necessary computer programs and data.
  • the present disclosure also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
  • the present disclosure also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer programs.
  • the computer program When the computer program is loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present disclosure are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated.
  • the usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid state disks, SSD
  • At least one in the present disclosure can also be described as one or more, and the plurality can be two, three, four or more, and the present disclosure is not limited.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D” etc.
  • the technical features described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or order.
  • each table in this disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which is not limited by this disclosure.
  • it is not necessarily required to configure all the correspondences shown in each table.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.
  • Predefinition in this disclosure may be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

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

Abstract

Les modes de réalisation de la présente divulgation peuvent être appliqués au domaine technique des communications. Est divulgué un procédé de reprise sur défaillance de groupe de cellules. Le procédé, qui est exécuté au moyen d'un dispositif terminal, comprend les étapes suivantes : lorsqu'un dispositif terminal est configuré avec une activation sélective de groupes de cellules et que l'activation d'un premier groupe de cellules échoue, le dispositif terminal peut lancer un premier processus de reprise sur défaillance de groupe de cellules, de façon à assurer la reprise ou la libération de la connexion du premier groupe de cellules, ce qui permet de garantir la fiabilité de la connexion du dispositif terminal.
PCT/CN2022/096494 2022-05-31 2022-05-31 Procédé et appareil de reprise sur défaillance de groupe de cellules WO2023230935A1 (fr)

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PCT/CN2022/096494 WO2023230935A1 (fr) 2022-05-31 2022-05-31 Procédé et appareil de reprise sur défaillance de groupe de cellules
CN202280001904.9A CN117501802A (zh) 2022-05-31 2022-05-31 一种小区组失败的恢复方法及装置

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