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CN-122028160-A - Synchronization error elimination method and device for sensing

CN122028160ACN 122028160 ACN122028160 ACN 122028160ACN-122028160-A

Abstract

The application provides a method and a device for eliminating a perceived synchronization error, and relates to the technical field of communication. The method comprises the steps of obtaining a first measurement result of a first path, wherein the first path refers to a transmission path which is sent by first equipment, received by second equipment and passes through a first object, obtaining a second measurement result of a second path, wherein the second path refers to the transmission path which is sent by second equipment, received by first equipment and passes through the first object, and determining the position of the first object according to the first measurement result and the second measurement result. The method in the embodiment of the application is beneficial to improving the accuracy of the positioning result.

Inventors

  • WU CHUANPENG
  • HE JIA

Assignees

  • 成都华为技术有限公司

Dates

Publication Date
20260512
Application Date
20241030

Claims (15)

  1. 1. A synchronization error cancellation method for sensing, comprising: Obtaining a first measurement result of a first path, the first path being a transmission path sent by a first device, received by a second device and passing through a first object; obtaining a second measurement of a second path, the second path being a transmission path sent by the second device, received by the first device and passing through the first object; and determining the position of the first object according to the first measurement result and the second measurement result.
  2. 2. The method of claim 1, wherein the first measurement comprises a first delay of the first path and the second measurement comprises a second delay of the second path; Wherein the determining the position of the first object according to the first measurement result and the second measurement result includes: Calculating the average time delay of the first time delay and the second time delay; And determining the position of the first object according to the average time delay.
  3. 3. The method according to claim 1 or 2, characterized in that the method further comprises: determining whether the first path and the second path are matched according to the first measurement result and the second measurement result; Wherein the determining the position of the first object according to the first measurement result and the second measurement result includes: and determining the position of the first object according to the first measurement result and the second measurement result under the condition that the first path is matched with the second path.
  4. 4. A method according to claim 3, wherein the first measurement comprises first indication information, a first delay of the first path, a departure angle of the first path and/or an arrival angle of the first path, and the second measurement comprises second indication information, a second delay of the second path, a departure angle of the second path and/or an arrival angle of the second path, the first indication information being used to indicate that the first path is a line of sight or a non-line of sight, and the second indication information being used to indicate that the second path is a line of sight or a non-line of sight; Wherein the determining whether the first path and the second path match according to the first measurement result and the second measurement result includes: And determining whether the first path and the second path are a pair of round trip paths according to the first measurement result and the second measurement result.
  5. 5. The method of claim 4, wherein the determining whether the first path and the second path are a pair of round trip paths based on the first measurement and the second measurement comprises: determining the first path and the second path as a pair of round trip paths if one or more of the following is satisfied: The first indication information is the same as the second indication information; The difference between the first delay and the second delay is less than or equal to a first threshold; The difference between the angle of departure of the first path and the angle of arrival of the second path is less than or equal to a second threshold; The difference between the angle of arrival of the first path and the angle of departure of the second path is less than or equal to a first threshold.
  6. 6. The method according to any one of claims 1 to 5, further comprising: First information is sent, the first information being used to indicate a measurement interval between the first measurement result and the second measurement result.
  7. 7. The method of claim 6, wherein the method further comprises: And transmitting second information, wherein the second information is used for indicating measurement based on the measurement interval.
  8. 8. The method according to any one of claims 1 to 5, further comprising: first information is received, the first information being used to indicate a measurement interval between the first measurement result and the second measurement result.
  9. 9. The method of claim 8, wherein the method further comprises: second information is received, the second information being used to indicate that measurements are to be made based on the measurement interval.
  10. 10. The method of any one of claims 1 to 9, wherein a measurement interval between the first measurement and the second measurement is related to one or more of: the type of the first object; the speed of the first object; Task types corresponding to the first measurement results; and the task type corresponding to the second measurement result.
  11. 11. A synchronization error cancellation device for sensing, comprising means or units for performing the method of any one of claims 1 to 10.
  12. 12. A synchronization error cancellation apparatus for perception, comprising a processor and a memory, the processor being coupled to the memory, the memory being for storing a computer program which, when executed by the processor, causes the apparatus to perform the method of any one of claims 1 to 10.
  13. 13. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when run on a computer, causes the computer to perform the method according to any of claims 1 to 10.
  14. 14. A computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of any one of claims 1 to 10.
  15. 15. A chip comprising a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, such that an apparatus or device on which the chip is mounted performs the method according to any of claims 1 to 10.

Description

Synchronization error elimination method and device for sensing Technical Field The application relates to the technical field of communication, in particular to a method and a device for eliminating a perceived synchronization error. Background With the development of communication technology, some communication systems introduce dual-base sensing to improve the sensing capability of the communication system. The dual base perception refers to the spontaneous He's perception, meaning different nodes where the transmitter and receiver are located in different locations. However, there is often a clock error (i.e., clock error) between different nodes, and the clock error affects the accuracy of the delay measurement between the nodes, so that the accuracy of the double-base perception is affected. Disclosure of Invention The application provides a method and a device for eliminating a perceived synchronization error, which are beneficial to improving the accuracy of a positioning result. In a first aspect, a synchronization error cancellation method for sensing is provided, the method being applied to a terminal device or a component in a terminal device (e.g. a processor, a chip, a system-on-chip, a circuit or a functional module, etc.), the method comprising: The method comprises the steps of obtaining a first measurement result of a first path, wherein the first path refers to a transmission path which is sent by first equipment, received by second equipment and passes through a first object, obtaining a second measurement result of a second path, wherein the second path refers to a transmission path which is sent by second equipment, received by first equipment and passes through the first object, and determining the position of the first object according to the first measurement result and the second measurement result. In the embodiment of the application, the first measuring result of the first path is obtained, the second measuring result of the second path is obtained, and the position of the first object is determined according to the first measuring result and the second measuring result, so that the time delay synchronization error between the first device and the second device is eliminated, and the accuracy of the positioning result of the first object is improved. In some possible implementations, the first measurement includes a first delay of the first path and the second measurement includes a second delay of the second path, wherein the determining the position of the first object based on the first measurement and the second measurement includes calculating an average delay of the first delay and the second delay, and determining the position of the first object based on the average delay. In the embodiment of the application, the time delay synchronization error between the first equipment and the second equipment can be eliminated by calculating the average time delay of the first time delay and the second time delay, and at the moment, the position of the first object is determined according to the average time delay, so that the accuracy of the positioning result of the first object can be improved. In some possible implementations, the method further includes determining whether the first path and the second path match based on the first measurement and the second measurement, wherein the determining the location of the first object based on the first measurement and the second measurement includes determining the location of the first object based on the first measurement and the second measurement if the first path and the second path match. In the embodiment of the application, whether the first path and the second path are matched or not is determined according to the first measurement result and the second measurement result, so that the multipath effect of the wireless channel can be eliminated, the time delay synchronization error between the first equipment and the second equipment can not be corrected due to the fact that the first path and the second path are not matched, at this time, the position of the first object is determined according to the first measurement result and the second measurement result under the condition that the first path and the second path are matched, and the accuracy of the positioning result of the first object can be ensured. In some possible implementations, the first measurement includes first indication information, a first delay of the first path, a departure angle of the first path, and/or an arrival angle of the first path, the second measurement includes second indication information, a second delay of the second path, a departure angle of the second path, and/or an arrival angle of the second path, the first indication information is used for indicating that the first path is a line of sight or a non-line of sight, and the second indication information is used for indicating that the second path is a line of sight or a non-line of sigh