US-12618935-B2 - Positioning processing method, terminal and network side device

Abstract

The application discloses a positioning processing method, a terminal and a network side device. The positioning processing method includes: sending, by a terminal, first indication information, where the first indication information is used to indicate at least one of the following: an association between a reference signal for uplink positioning and a timing error group (TEG); or an association between a positioning measurement result and the TEG.

Inventors

• Ye Si
• Yuanyuan WANG
• Zixun ZHUANG
• Huaming Wu

Assignees

• VIVO MOBILE COMMUNICATION CO., LTD.

Dates

Publication Date

20260505

Application Date

20231110

Priority Date

20210511

Claims (18)

1. 1 . A method for positioning processing, comprising: obtaining, by a terminal, timing error group (TEG) level information, wherein the TEG level information indicates at least one mapping relationship, wherein the at least one mapping relationship comprises at least one of the following: a timing error threshold corresponding to a TEG level, a timing error difference threshold corresponding to the TEG level, a positioning accuracy requirement corresponding to the TEG level, or configuration information of reference signal for positioning corresponding to the TEG level; determining, by the terminal, first indication information according to the at least one mapping relationship; and sending, by the terminal, the first indication information, to a first network side device for the first network side device to perform positioning processing associated with the terminal based on the first indication information, wherein the first indication information indicates at least one of the following: an association between a reference signal for uplink positioning and a TEG, or an association between a positioning measurement result and the TEG.
2. 2 . The method according to claim 1 , wherein the at least one mapping relationship further comprises: a TEG level identifier.
3. 3 . The method according to claim 1 , further comprising: sending, by the terminal, TEG capability information; wherein the TEG capability information indicates the at least one mapping relationship, and the at least one mapping relationship comprises at least one of the following: a TEG level identifier; a timing error threshold corresponding to the TEG level; a timing error difference threshold corresponding to the TEG level; a positioning accuracy requirement corresponding to the TEG level; configuration information of reference signal for positioning corresponding to the TEG level; a statistical characteristic parameter of a timing error corresponding to the TEG level; a statistical characteristic parameter of a timing error difference corresponding to the TEG level; or a number of TEGs corresponding to the TEG level.
4. 4 . The method according to claim 1 , further comprising: receiving, by the terminal, request information from the first network side device, wherein the request information is used to request the terminal to provide the first indication information or TEG capability information.
5. 5 . The method according to claim 4 , wherein the request information comprises at least one of the following: a request identifier; a TEG level identifier; a target timing error threshold; a target timing error difference threshold; positioning accuracy requirements; or a TEG capability information request.
6. 6 . The method according to claim 1 , before the terminal sends the first indication information, further comprising: receiving, by the terminal, the positioning accuracy requirement of the first network side device.
7. 7 . The method according to claim 1 , wherein the first indication information further indicates the TEG level of the TEG.
8. 8 . The method according to claim 1 , wherein the first indication information indicates the association between the positioning measurement result and the TEG, wherein the positioning measurement result is a time difference between sending and receiving, the TEG associated with the time difference between sending and receiving corresponds to one or more resources of reference signal for uplink positioning.
9. 9 . The method according to claim 8 , wherein the one or more resources of reference signal for uplink positioning comprise at least one of the following: a resource of a reference signal for uplink positioning transmission occasion closest to a current measurement moment; resources of one or more preset transmission occasions of reference signal for uplink positioning; or resources of one or more transmission occasions of reference signal for uplink positioning within a first time window.
10. 10 . The method according to claim 9 , wherein the one or more transmission occasion of reference signal for uplink positioning in the first time window comprise at least one of the following: one or more transmission occasions of reference signal for uplink positioning closest to the current measurement moment in the first time window; transmission occasions of reference signal for uplink positioning specified in the first time window; or any transmission occasion of reference signal for uplink positioning in the first time window.
11. 11 . The method according to claim 1 , further comprising: obtaining, by the terminal, second indication information, wherein the second indication information indicates a signaling mode for sending the first indication information, wherein the signaling mode comprises one of the following: sending, by the terminal, the first indication information to the first network side device; or sending, by the terminal, the first indication information to a second network side device, and sending, by the second network side device, the first indication information to the first network side device.
12. 12 . The method according to claim 1 , wherein the first indication information further comprises consistency indication information of the TEG, and the consistency indication information indicates whether TEG information under the same TEG identifier at different times is consistent.
13. 13 . The method according to claim 12 , wherein during the time during which the consistency of the TEG information is maintained, the first indication information further comprises at least one of the following: change information of the association between the positioning measurement result and the TEG; or change information of the association between the reference signal for uplink positioning and the TEG.
14. 14 . The method according to claim 1 , wherein the first indication information indicates the association between the positioning measurement result and the TEG, and when the positioning measurement result is obtained based on measurement of reference signal for positioning, the first indication information indicates association between positioning measurement results of multiple resources of reference signal for positioning under one TRP and at least one TEG, wherein in the association between the positioning measurement results of the multiple resources of reference signal for positioning under the one TRP and the at least one TEG, each TEG is associated with a positioning measurement result of at least one resource of reference signal for positioning.
15. 15 . The method according to claim 14 , wherein the multiple resources of reference signal for positioning satisfy at least one of the following conditions: belonging to a same resource set of reference signal for positioning; belonging to a same positioning frequency layer; falling within a range of a second time window; or a distance in time is smaller than a distance threshold.
16. 16 . A method for positioning processing, comprising: receiving, by a first network side device, first indication information from a terminal, wherein the first indication information is determined by the terminal according to at least one mapping relationship of timing error group (TEG) level information, and the at least one mapping relationship comprises at least one of the following: a timing error threshold corresponding to a TEG level, a timing error difference threshold corresponding to the TEG level, a positioning accuracy requirement corresponding to the TEG level, or configuration information of reference signal for positioning corresponding to the TEG level; and performing, by the first network side device, positioning processing associated with the terminal according to the first indication information; wherein the first indication information indicates: an association between a reference signal for uplink positioning and a TEG; and an association between a positioning measurement result and the TEG.
17. 17 . A terminal, comprising: a memory storing a computer program; and a processor coupled to the memory and configured to execute the computer program to perform operations comprising: Obtaining timing error group (TEG) level information, wherein the TEG level information indicates at least one mapping relationship, wherein the at least one mapping relationship comprises at least one of the following: a timing error threshold corresponding to a TEG level, a timing error difference threshold corresponding to the TEG level, a positioning accuracy requirement corresponding to the TEG level, or configuration information of reference signal for positioning corresponding to the TEG level; determining first indication information according to the at least one mapping relationship; and sending the first indication information, to a first network side device for the first network side device to perform positioning processing associated with the terminal based on the first indication information, wherein the first indication information indicates at least one of the following: an association between a reference signal for uplink positioning and a timing error group (TEG); or an association between a positioning measurement result and the TEG.
18. 18 . A network side device, comprising: a memory storing a computer program; and a processor coupled to the memory and configured to execute the computer program to perform steps of the positioning processing method according to claim 16 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2022/091462, filed May 7, 2022, which claims priority to Chinese Patent Application No. 202110512041.9, filed May 11, 2021. The entire contents of each of the above-referenced applications are expressly incorporated herein by reference. TECHNICAL FIELD The present application relates to the technical field of communications, and in particular relates to a positioning processing method, a terminal, and a network side device. BACKGROUND For positioning methods based on time measurement, for example, Round Trip Time based (RTT-based) positioning methods and Time Difference of Arrival based (TDOA-based) positioning methods, when calculating the location of User Equipment (UE), the positioning accuracy is affected by a Transmission Reference Point (TRP) and a receiving/transmitting timing error (Rx/Tx timing error) of the UE. Taking the RTT-based positioning method as an example, the impact of Rx/Tx timing error on positioning is shown in FIG. 1. An Rx-Tx measurement value of the receiving/transmitting timing error between UE and TRP can be written as: (Rx−Tx)UE=t1−t2 (Rx−Tx)TRP=t3−t0 wherein, t1 is a time of receiving a Downlink Positioning Reference Signal (DL PRS) by the UE from the TRP, t2 is a time of sending a Sounding Reference Signal (SRS), t3 is a time of receiving an SRS from the TRP, and t0 is a time of sending a DL PRS. The RTT value between UE and TRP can be calculated as: RTTmeas=(Rx−Tx)TRP+(Rx−Tx)UE=t3−t0+t1−t2=t1−t0+t3−t2 However, all of the above sending and receiving times are obtained from baseband, and consist of actual propagation delay and Rx/Tx timing error as follows: RTTmeas=2*Tprop+(e0+e3)+(e1+e2)=2*Tprop+eTRP+eUE wherein, Tprop is the actual propagation delay between UE and TRP, e0 is a transmission timing error (Tx timing error) of TRP, e3 is the receiving timing error (Rx timing error) of TRP, e1 is the RN, timing error of the UE, e2 is the Tx timing error of the UE, eTRP is a total timing error including e0 and e3 on the TRP side, and cur is a Inning error including e1 and e2 on the UE side. Due to the impact of Rx/Tx timing, RTT-based positioning will be affected. Similarly, other time-based positioning methods will also will be affected, Therefore, how to eliminate the Rx/Tx timing error and improve the positioning accuracy has become an urgent problem in the current positioning technology. SUMMARY Embodiments of the present application provide a positioning processing method, a terminal, and a network side device. According to a first aspect, a positioning processing method is provided, including: sending, by a terminal, first indication information;where the first indication information is used to indicate at least one of the following:association between a reference signal for uplink positioning and a timing error group TEG; orassociation between a positioning measurement result and a TEG. According to a second aspect, a positioning processing apparatus is provided, including: a sending module, configured to send first indication information;where the first indication information is used to indicate at least one of the following:association between a reference signal for uplink positioning and a timing error group TEG; orassociation between a positioning measurement result and a TEG. According to a third aspect, a location processing method is provided, including: receiving, by a first network side device, first indication information; andperforming, by the first network side device, positioning calculation according to the first indication information;where the first indication information is used to indicate at least one of the following:association between a reference signal for uplink positioning and a TEG; orassociation between a positioning measurement result and a TEG. According to a fourth aspect, a positioning processing apparatus is provided, including: a receiving module, configured to receive first indication information; anda positioning processing module, configured to perform positioning calculation according to the first indication information;where the first indication information is used to indicate at least one of the following:association between a reference signal for uplink positioning and a TEG; orassociation between a positioning measurement result and a TEG. According to a fifth aspect, a terminal is provided. The terminal includes a processor, a memory, and a program or an instruction that is stored in the memory and that can be run on the processor, where the program or the instruction is executed by the processor to implement the steps of the method in the first aspect. According to a sixth aspect, a terminal is provided, including a communication interface, where the communication interface is configured to send first indication information; where the first indication information is used to indicate at least one of the following:a