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CN-121397668-B - Communication method and related device

CN121397668BCN 121397668 BCN121397668 BCN 121397668BCN-121397668-B

Abstract

The application relates to the communication field, and provides a communication method and a related device, in the method, terminal equipment can autonomously perform decision of synchronously activating auxiliary cells according to information configured by a network side and combining a measurement report, and can directly utilize a measurement result to perform synchronous activation of the auxiliary cells in the subsequent inter-station switching process so as to improve the flexibility of a network and provide better communication service for a terminal.

Inventors

  • ZHANG JUN
  • TANG XIAOXUAN
  • WANG ZICHAO

Assignees

  • 荣耀终端股份有限公司

Dates

Publication Date
20260508
Application Date
20251225

Claims (15)

  1. 1. A communication method, applied to a terminal device, the method comprising: Receiving first information of a first communication node, wherein the first information comprises a first parameter, a second parameter and a first condition, the first parameter is used for indicating a carrier aggregation CA type, the second parameter is used for indicating a mobility LTM type triggered by a layer 1/layer 2, the first condition comprises a triggering condition of a first item, and the first item comprises a synchronous activation auxiliary cell when the terminal equipment executes inter-station handover; And if the first parameter indicates that the CA type is co-located CA and the second parameter indicates that the LTM type is primary LTM, second information is sent to the first communication node in response to the first condition being met, wherein the second information comprises a third parameter, and the third parameter is used for representing that the terminal equipment synchronously activates a target secondary cell when performing inter-station handover.
  2. 2. The method of claim 1, wherein the sending second information to the first communication node in response to the first condition being met comprises: And transmitting second information to the first communication node in response to a first measurement result meeting the first condition, wherein the first measurement result comprises a layer 1 measurement result of a first serving cell of the terminal equipment, and the first serving cell comprises a target primary cell and a secondary cell to be activated.
  3. 3. The method of claim 2, wherein the second information further comprises beam synchronization information of the secondary cell to be activated and the first measurement result, wherein the first communication node is configured to determine the target secondary cell from the secondary cell to be activated based on the first measurement result and the beam synchronization information of the secondary cell to be activated.
  4. 4. The method of claim 3, wherein the first information further includes a first version number, the first version number indicating a version number corresponding to the first transaction in a pre-configuration phase, the method further comprising: receiving third information, wherein the third information comprises a first identifier, a second identifier and a second version number, the first identifier is used for indicating the target primary cell, the second identifier is used for indicating the target secondary cell, and the second version number is used for indicating a version number corresponding to the first item in a switching request stage; And in the process of switching to the target main cell, activating the target auxiliary cell based on the beam synchronization information of the auxiliary cell to be activated under the condition that the first version number and the second version number are the same.
  5. 5. The method according to claim 4, wherein the method further comprises: and sending fourth information to a second communication node, wherein the fourth information comprises first indication information and second indication information, the first indication information is used for indicating the terminal equipment to switch to the target main cell based on an LTM mechanism, the second indication information is used for indicating that the target auxiliary cell is activated, and the target main cell and the target auxiliary cell are located in the coverage range of a wireless network of the second communication node.
  6. 6. A method of communication, wherein a first communication node is applied, the method comprising: Transmitting first information to a terminal device, wherein the first information comprises a first parameter, a second parameter and a first condition, the first parameter is used for indicating a carrier aggregation CA type, the second parameter is used for indicating a mobility LTM type triggered by a layer 1/layer 2, the first condition comprises a triggering condition of a first item, and the first item comprises synchronous activation of a secondary cell when the terminal device executes inter-station handover; And receiving second information of the terminal equipment, wherein the second information is sent by the terminal equipment when the first parameter indicates that the CA type is co-located CA and the second parameter indicates that the LTM type is primary LTM and the first condition is met, and the second information comprises a third parameter used for representing that the terminal equipment synchronously activates a target secondary cell when the terminal equipment performs inter-station handover.
  7. 7. The method of claim 6, wherein the satisfying the first condition comprises satisfying the first condition with a first measurement comprising a layer 1 measurement of a first serving cell of the terminal device, the first serving cell comprising a target primary cell and a secondary cell to be activated.
  8. 8. The method of claim 7, wherein the method further comprises: The second information further comprises the first measurement result and beam synchronization information of the auxiliary cell to be activated; And determining the target auxiliary cell from the auxiliary cells to be activated based on the first measurement result and the beam synchronization information of the auxiliary cells to be activated.
  9. 9. The method of claim 8, wherein the method further comprises: transmitting third information, wherein the third information comprises a first identifier, a second identifier and a second version number, the first identifier is used for indicating the target primary cell, the second identifier is used for indicating the target secondary cell, and the second version number is used for indicating a version number corresponding to the first item in a switching request stage; the first information further includes a first version number, where the first version number is used to indicate a version number corresponding to the first event in a pre-configuration stage, and in a process that the terminal device is switched to the target primary cell, when the first version number is the same as the second version number, beam synchronization information of the secondary cell to be activated is used for the terminal device to activate the target secondary cell.
  10. 10. The method according to claim 9, wherein the method further comprises: Transmitting switching request information to a second communication node, wherein the switching request information comprises configuration information of a target auxiliary cell and beam synchronization information of the target auxiliary cell, the second communication node is used for reserving resources for the target auxiliary cell based on the configuration information of the target auxiliary cell and the beam synchronization information of the target auxiliary cell, and the target main cell and the target auxiliary cell are located in a coverage area of a wireless network of the second communication node; and receiving switching request confirmation information of the second communication node, wherein the switching request confirmation information is used for indicating that resources are reserved for the target auxiliary cell.
  11. 11. A communication device, wherein: the communication device comprising means for performing the method according to any of claims 1 to 5 or the communication device comprising means for performing the method according to any of claims 6 to 10.
  12. 12. A communication device comprising a processor for executing a computer program or computer instructions in a memory to perform the method of any of claims 1 to 10.
  13. 13. A computer readable storage medium for storing a computer program which, when executed by a communication device, causes the communication device to perform the method of any one of claims 1 to 10.
  14. 14. A computer program product comprising instructions which, when run on a processor, implements the method of any of claims 1 to 10.
  15. 15. A system on a chip, comprising a processor; The processor is configured to execute computer-executable instructions to cause a device on which the chip system is mounted to perform the method of any one of claims 1 to 10.

Description

Communication method and related device Technical Field The present application relates to the field of communications, and in particular, to a communication method and related apparatus. Background In a mobile communication network, when a terminal device moves from the coverage area of one base station to the coverage area of another base station, the movement of the terminal device may trigger an inter-station handover (handover), where the source base station and the target base station belong to different network devices. In order to reduce service interruption and delay of terminal equipment during inter-station handover, a layer1/layer2 triggered mobility (layer 1/layer2 TRIGGERED MOBILITY, LTM) mechanism is proposed. In a carrier aggregation (carrier aggregation, CA) scenario, a serving cell of a terminal device includes a primary cell and at least one active secondary cell, and when an inter-station handover is performed based on an LTM mechanism, the terminal device is first accessed to the primary cell of a target base station, and then the target base station reconfigures a new secondary cell for the terminal device. However, the current processing mode of the auxiliary cell is not flexible and has low efficiency, affects the service efficiency of the terminal equipment, and has poor user experience. Disclosure of Invention According to the communication method and the related device provided by the embodiment of the application, the terminal equipment can autonomously perform the decision of synchronously activating the auxiliary cells in combination with the measurement report according to the information configured by the network side, so that the network flexibility is improved, and better communication service is provided for the terminal. In a first aspect, a communication method is provided, where the method may be applied to a terminal device, or a module in the terminal device (where the module in the terminal device includes a communication module and a computing module), or a circuit or a chip in the terminal device that is responsible for a communication function (such as a modem (modem) chip, also called a baseband (baseband) chip, or a system on chip (SoC) chip or a system in package (SYSTEM IN PACKAGE, SIP) chip that includes a modem core), or the terminal device may also be a logic module or software that can implement all or part of the functions of the communication device. The method comprises the following steps: receiving first information of a first communication node, wherein the first information comprises one or more of a first parameter, a second parameter and a first condition, wherein the first parameter is used for indicating a carrier aggregation CA type, the second parameter is used for indicating a mobility LTM type triggered by a layer 1/layer 2, the first condition comprises a triggering condition of a first item, and the first item comprises a synchronous activation secondary cell when the terminal equipment executes inter-station handover; And if the first parameter indicates that the CA type is co-located CA and the second parameter indicates that the LTM type is primary LTM, second information is sent to the first communication node in response to the first condition being met, wherein the second information comprises a third parameter, and the third parameter is used for representing that the terminal equipment synchronously activates a target secondary cell when performing inter-station handover. In some examples, inter-station handover refers to the source cell and the target cell belonging to different network devices. In an open RAN, O-RAN or ORAN system, the first communication node comprises a centralized unit (centralized unit, CU) and a Distributed Unit (DU), and the Inter-station handover comprises a cross CU (Inter-CU) handover. In the method, the network side can configure parameters such as CA type, LTM type, activation event threshold and the like for the terminal equipment, and then the terminal equipment can determine whether the target auxiliary cell can be synchronously activated when the inter-station handover is executed or not based on the autonomous judgment activation condition of the parameters, and further can synchronously activate the auxiliary cell when the network triggers the LTM handover, so that interruption delay is further reduced, service efficiency of the terminal equipment is guaranteed, and user experience is improved. In a possible implementation manner of the first aspect, the sending, in response to the first condition being met, second information to the first communication node includes: And transmitting second information to the first communication node in response to a first measurement result meeting the first condition, wherein the first measurement result comprises a layer 1 measurement result of a first serving cell of the terminal equipment, and the first serving cell comprises a target primary cell and a sec