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EP-4738929-A1 - METHOD AND DEVICE FOR WIRELESS COMMUNICATION

EP4738929A1EP 4738929 A1EP4738929 A1EP 4738929A1EP-4738929-A1

Abstract

The present application provides a method for wireless communication. The method comprises: a first device sends first information to a second device, wherein the first information is used for indicating a first prediction value of a first cell, and the first cell is a current serving cell of a terminal device and/or a neighboring cell of the serving cell. According to the embodiments of the present application, a measurement result of some or all of measurement targets is predicted (a prediction value of the measurement result is the first prediction value), thereby facilitating reduction of the energy consumption of the first device and reduction of a delay of obtaining the measurement result.

Inventors

  • FAN, Jiangsheng

Assignees

  • GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Dates

Publication Date
20260506
Application Date
20230628

Claims (20)

  1. A wireless communication method, comprising: transmitting, by a first device, first information to a second device, wherein the first information is used to indicate a first predicted value of a first cell, and the first cell is a current serving cell of a terminal device and/or a neighboring cell of the serving cell.
  2. The method according to claim 1, wherein the first predicted value comprises a cell-level predicted value and/or a beam-level predicted value.
  3. The method according to claim 2, wherein the first predicted value comprises one or more of the following information: a predicted value at a current instant; a predicted value at one or more past instants; or a predicted value at one or more future instants.
  4. The method according to claim 2 or 3, wherein the cell-level predicted value of the first cell at a first instant is determined based on one or more of the following information: cell-level measured values and/or cell-level predicted values of the first cell at past K1 instants relative to the first instant; measured values of a part of beams of the first cell and/or predicted values of a part of beams of the first cell at past K1 instants relative to the first instant; or a measured value of a part of beams of the first cell and/or predicted value of a part of beams of the first cell at the first instant, wherein K1 is a natural number greater than or equal to 1.
  5. The method according to any one of claims 2 to 4, wherein the beam-level predicted value of the first cell at the first instant is determined based on one or more of the following information: beam-level measured values of the first cell at past K2 instants relative to the first instant; measured values of a part of beams of the first cell and/or predicted values of a part of beams of the first cell at past K2 instants relative to the first instant; or a measured value of a part of beams of the first cell at the first instant, wherein K2 is a natural number greater than or equal to 1.
  6. The method according to claim 4 or 5, wherein the first instant is any one of one or more instants associated with the first predicted value.
  7. The method according to any one of claims 4 to 6, wherein the K1 instants or the K2 instants meet one or more of the following conditions: a time difference between any two adjacent instants is greater than or equal to a first threshold; a time difference between any two adjacent instants is less than or equal to a second threshold; a time difference between the first instant and a second instant in the K1 instants or the K2 instants is less than or equal to a third threshold; a time difference between the first instant and a second instant in the K1 instants or the K2 instants is greater than or equal to a fourth threshold; a time difference between the first instant and a third instant in the K1 instants or the K2 instants is less than or equal to a fifth threshold; or a time difference between the first instant and a third instant in the K1 instants or the K2 instants is greater than or equal to a sixth threshold, wherein the second instant is an instant in the K1 instants or the K2 instants that is farthest from the first instant, and the third instant is an instant in the K1 instants or the K2 instants that is closest to the first instant.
  8. The method according to any one of claims 1 to 7, wherein if the first predicted value of the first cell comprises predicted values at past K3 instants before an instant when a first preset event is triggered, the K3 instants meet one or more of the following conditions: a time difference between any two adjacent instants is greater than or equal to a seventh threshold; a time difference between any two adjacent instants is less than or equal to an eighth threshold; a time difference between a triggering instant of the first preset event and a fourth instant in the K3 instants is less than or equal to a ninth threshold; a time difference between a triggering instant of the first preset event and a fourth instant in the K3 instants is greater than or equal to a tenth threshold; a time difference between a triggering instant of the first preset event and a fifth instant in the K3 instants is less than or equal to an eleventh threshold; or a time difference between a triggering instant of the first preset event and a fifth instant in the K3 instants is greater than or equal to a twelfth threshold, wherein the fourth instant is an instant in the K3 instants that is farthest from the triggering instant of the first preset event, the fifth instant is an instant in the K3 instants that is closest to the triggering instant of the first preset event, and K3 is a natural number greater than or equal to 1.
  9. The method according to any one of claims 1 to 8, wherein if the first predicted value of the first cell comprises predicted values of future K4 instants after an instant when the first preset event is triggered, the K4 instants meet one or more of the following conditions: a time difference between any two adjacent instants is greater than or equal to a thirteenth threshold; a time difference between any two adjacent instants is less than or equal to a fourteenth threshold; a time difference between the triggering instant of the first preset event and a sixth instant in the K4 instants is less than or equal to a fifteenth threshold; a time difference between the triggering instant of the first preset event and a sixth instant in the K4 instants is greater than or equal to a sixteenth threshold; a time difference between the triggering instant of the first preset event and a seventh instant in the K4 instants is less than or equal to a seventeenth threshold; or a time difference between the triggering instant of the first preset event and a seventh instant in the K4 instants is greater than or equal to an eighteenth threshold, wherein the sixth instant is an instant in the K4 instants that is farthest from the triggering instant of the first preset event, the seventh instant is an instant in the K4 instants that is closest to the triggering instant of the first preset event, and K4 is a natural number greater than or equal to 1.
  10. The method according to any one of claims 1 to 9, wherein the first predicted value is associated with a triggering instant of a first preset event, the first preset event comprises a first-type preset event, and the first-type preset event comprises one or more of the following events: a measured value of the serving cell is greater than or equal to a nineteenth threshold; a measured value of the serving cell is less than or equal to a twentieth threshold; a difference between a measured value of the neighboring cell and a measured value of a primary cell or a primary secondary cell is greater than or equal to a first offset; a measured value of the neighboring cell is greater than or equal to a twenty-first threshold; a measured value of a primary cell or a primary secondary cell is less than a twenty-second threshold, and a measured value of the neighboring cell or a secondary cell is greater than a twenty-third threshold; a difference between a measured value of the neighboring cell and a measured value of a secondary cell is greater than or equal to a second offset; a distance between the terminal device and a first reference point is greater than or equal to a twenty-fourth threshold; a distance between the terminal device and a second reference point is less than or equal to a twenty-fifth threshold; a measured value of the neighboring cell is greater than or equal to a twenty-sixth threshold, and the neighboring cell and the serving cell are based on different radio access technologies; a measured value of a primary cell is less than a twenty-seventh threshold, and a measured value of the neighboring cell is greater than a twenty-eighth threshold, wherein the neighboring cell and the serving cell are based on different radio access technologies; a periodic measurement reporting timer expires; a first absolute time instant is reached; or a first time period has elapsed since successful reception of a measurement configuration.
  11. The method according to claim 10, wherein the first preset event comprises a second-type preset event, and the second-type preset event comprises that the first-type preset event is predicted to occur within a second time period.
  12. The method according to claim 10 or 11, wherein the first preset event comprises a third-type preset event, and the third-type preset event comprises that the first-type preset event is predicted to occur within the second time period and the measured value of the serving cell is less than or equal to a twenty-ninth threshold.
  13. The method according to any one of claims 10 to 12, wherein the first preset event comprises a fourth-type preset event, and the fourth-type preset event comprises that the first-type preset event is predicted to occur within the second time period and the measured value of the serving cell is less than or equal to a thirtieth threshold and lasts for a third time period.
  14. The method according to any one of claims 1 to 13, wherein the first information is further used to indicate a measured value of the first cell.
  15. The method according to any one of claims 1 to 14, wherein the first information is associated with absolute time information and/or relative time information.
  16. The method according to any one of claims 1 to 15, wherein a configuration granularity of a parameter associated with the first predicted value comprises one or more of the following: a frequency range granularity; a carrier granularity; a band granularity; a band combination granularity; a device type granularity; or a cell granularity.
  17. The method according to any one of claims 1 to 16, wherein the method further comprises: receiving, by the first device, second information transmitted by the second device, wherein the second information is used to indicate configuration information associated with the first predicted value.
  18. The method according to claim 17, wherein the second information comprises one or more of following information: first indication information; one or more pieces of physical cell identity PCI information supporting or allowing obtaining of the first predicted value; beam information supporting or allowing obtaining of a measured value; beam information supporting or allowing obtaining of a predicted value; second indication information; or configuration information of the first preset event, wherein the first indication information is used to indicate whether to support or allow obtaining of the first predicted value, and the second indication information is used to indicate a reporting requirement of the first predicted value.
  19. The method according to claim 18, wherein the first indication information is associated with one or more of the following information: frequency information; PCI information; measurement object information; measurement identifier information; measurement reporting configuration information; or the configuration information of the first preset event.
  20. The method according to claim 18 or 19, wherein the configuration information of the first preset event comprises event identifier information and/or event parameter information.

Description

TECHNICAL FIELD This application relates to the field of communications technologies, and more specifically, to a wireless communication method and device. BACKGROUND In order to implement mobility management for a terminal device, the terminal device usually needs to measure related parameters. For example, the terminal device may simultaneously measure a plurality of frequencies, to improve rationality of mobility management. However, a continuous multi-frequency measurement process causes problems of energy consumption of the terminal device and a delay in reporting a measurement result. SUMMARY This application provides a wireless communication method and device. The following describes aspects related to this application. According to a first aspect, a wireless communication method is provided, including: transmitting, by a first device, first information to a second device, where the first information is used to indicate a first predicted value of a first cell, and the first cell is a current serving cell of a terminal device and/or a neighboring cell of the serving cell. According to a second aspect, a wireless communication method is provided, including: receiving, by a second device, first information transmitted by a first device, where the first information is used to indicate a first predicted value of a first cell, and the first cell is a current serving cell of a terminal device and/or a neighboring cell of the serving cell. According to a third aspect, a wireless communication device is provided, where the wireless communication device is a first device, and the device includes: a transmitting unit, configured to transmit first information to a second device, where the first information is used to indicate a first predicted value of a first cell, and the first cell is a current serving cell of a terminal device and/or a neighboring cell of the serving cell. According to a fourth aspect, a wireless communication device is provided, where the wireless communication device is a second device, and the device includes: a receiving unit, configured to receive first information transmitted by a first device, where the first information is used to indicate a first predicted value of a first cell, and the first cell is a current serving cell of a terminal device and/or a neighboring cell of the serving cell. According to a fifth aspect, a wireless communication device is provided, including a memory and a processor. The memory is configured to store a program, and the processor is configured to invoke the program in the memory, so that the device executes a part or all of the steps in the method according to the first aspect or the second aspect. According to a sixth aspect, a wireless communication device is provided, including a processor, configured to invoke a program from a memory, so that the device executes a part or all of the steps in the method according to the first aspect or the second aspect. According to a seventh aspect, a chip is provided, including a processor, configured to invoke a program from a memory, so that the chip executes a part or all of the steps in the method according to the first aspect or the second aspect. According to an eighth aspect, a computer-readable storage medium is provided, where the computer-readable storage medium stores a program, and the program causes a wireless communication device to execute a part or all of the steps in the method according to the first aspect or the second aspect. According to a ninth aspect, a computer program product is provided, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a communication device to execute a part or all of the steps in the method according to the various aspects described above. In some implementations, the computer program product may be a software installation package. According to a tenth aspect, a computer program is provided, where the computer program causes a wireless communication device to execute a part or all of the steps in the method according to the first aspect or the second aspect. In embodiments of this application, a measurement result of a part or all of measurement objects (a predicted value of the measurement result is the first predicted value) is predicted, thereby facilitating reducing energy consumption of the first device, and reducing a delay in obtaining the measurement result. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 shows a wireless communications system to which embodiments of this application are applicable.FIG. 2 is a schematic diagram of a neural network to which an embodiment of this application is applicable.FIG. 3 is a schematic diagram of a convolutional neural network to which an embodiment of this application is applicable.FIG. 4 is a schematic flowchart of a communication method according to an embodiment of this application.FIG. 5 is a schematic diagram o