Search

EP-4413809-B1 - SIDELINK TRANSFER AND ROUND TRIP TIME POSITIONING

EP4413809B1EP 4413809 B1EP4413809 B1EP 4413809B1EP-4413809-B1

Inventors

  • LIU, JUAN
  • JIANG, Chuangxin
  • LI, Mengzhen
  • LOU, Junpeng
  • YANG, QI

Dates

Publication Date
20260513
Application Date
20220331

Claims (13)

  1. A method for wireless communication, comprising: receiving, by a second user equipment, UE, (UE2) first sidelink information from a first user equipment (UE1), wherein the first sidelink information comprises a sidelink positioning reference signal, SL-PRS, configuration, and the SL-PRS configuration comprises a SL-PRS sequence ID for initializing a value in a pseudo random generator for generation of a SL-PRS sequence for transmission on a SL-PRS Resource; sending, by the second user equipment, second sidelink information to the first user equipment, wherein the second sidelink information is used for positioning and comprises a Rx-Tx time difference measured by the second user equipment, a granularity for the Rx-Tx time difference measurement, and a UE capability, the UE capability comprises a capability of supporting a positioning method by the second user equipment.
  2. The method of claim 1, wherein the first sidelink information comprises a response time.
  3. The method of claim 1, wherein the second sidelink information further comprises at least one of: location information or a reference signal received power, RSRP.
  4. The method of claim 1, wherein the positioning method comprises a Round Trip Time, RTT.
  5. The method of claim 1, wherein the SL-PRS configuration is indicated in control signaling, and the control signaling comprises Non Access Stratum, NAS.
  6. A method for wireless communication, comprising: sending, by a first user equipment, UE, (UE1) first sidelink information to a second user equipment (UE2), wherein the first sidelink information comprises a sidelink positioning reference signal, SL-PRS, configuration, and the SL-PRS configuration comprises a SL-PRS sequence ID for initializing a value in a pseudo random generator for generation of a SL-PRS sequence for transmission on a SL-PRS Resource; receiving, by the first user equipment, second sidelink information from the second user equipment, wherein the second sidelink information is used for positioning and comprises a Rx-Tx time difference measured by the second user equipment, a granularity for the Rx-Tx time difference measurement, and a UE capability, the UE capability comprises a capability of supporting a positioning method by the second user equipment.
  7. The method of claim 6, wherein the first sidelink information comprises a response time.
  8. The method of claim 6, wherein the second sidelink information further comprises at least one of: location information or a reference signal received power, RSRP, optionally wherein the positioning method comprises at least a Round Trip Time, RTT.
  9. The method of claim 6, wherein the SL-PRS configuration is indicated in control signaling, and the control signaling comprises Non Access Stratum, NAS.
  10. A wireless communication device (200), comprising at least one processor (216) configured to: receive first sidelink information from a user equipment, wherein the first sidelink information comprises a sidelink positioning reference signal, SL-PRS, configuration, and the SL-PRS configuration comprises a SL-PRS sequence ID for initializing a value in a pseudo random generator for generation of a SL-PRS sequence for transmission on a SL-PRS Resource; send second sidelink information to the user equipment, wherein the second sidelink information is used for positioning and comprises a Rx-Tx time difference measured by the wireless communication device, a granularity for the Rx-Tx time difference measurement, and a device capability, the device capability comprises a capability of supporting a positioning method by the wireless communication device.
  11. The device of claim 10, wherein the first sidelink information comprises a response time.
  12. The device of claim 10, wherein the second sidelink information further comprises at least one of: location information or a reference signal received power, RSRP.
  13. A wireless communication device (200), comprising at least one processor (216) configured to implement a method of claim 6.

Description

TECHNICAL FIELD This document is directed generally to wireless communications. More specifically, the wireless communications including communications of sidelink information. BACKGROUND Wireless communication technologies are moving the world toward an increasingly connected and networked society. Wireless communications rely on efficient network resource management and allocation between user mobile stations and wireless access network nodes (including but not limited to wireless base stations). A new generation network is expected to provide high speed, low latency and ultra-reliable communication capabilities and fulfil the requirements from different industries and users. User mobile stations or user equipment (UE) are becoming more complex and the amount of data communicated continually increases. With the development of wireless multimedia services, demands of high data rate services are increasing as well as the requirements for system capacity and coverage of conventional cellular network. In addition, increased usage for public safety, social network, short distance data sharing, local advertisement, and other demands of proximity services which allow people to communicate with adjacent people or objects are also increasing. Device-to-device (D2D) communication technology may serve such demands. In order to improve communications and meet reliability requirements for the vertical industry as well as support the new generation network service, communication improvements for D2D should be made. CN 114 222 931 A discloses a method comprising sending a capability request message to a second terminal, wherein the second terminal is a terminal communicating with the first terminal through a sidelink, in response to the received capability providing message returned by the second terminal, sending a positioning auxiliary information request message to the second terminal based on positioning capability information used for indicating the positioning capability supported by the second terminal in the capability providing message. WO 2021/133104 A1 discloses a method comprising the steps of transmitting a request PRS through a sidelink channel, receiving a response PRS corresponding to the request PRS from a neighboring terminal through the sidelink channel, receiving a measurement result corresponding to the request PRS from the neighboring terminal, and performing positioning on the basis of the response PRS and the measurement result. WO 2021/240479 A1 discloses a method including transmitting a request for at least one resource for a sidelink positioning reference signal, receiving a response to the request for the at least one resource for the sidelink positioning reference signal, and transmitting a sidelink positioning reference signal in the at least one resource. CN 111 093 154 A discloses a positioning method comprising receiving positioning auxiliary information, performing positioning measurement according to the positioning auxiliary information, and positioning the target terminal by using the positioning measurement result. US 2021/211219 A1, US 2019/274121 A1, US 2018/132198 A1, and US 2018/035448 A1 are also related prior art. SUMMARY The invention is specified by the independent claims. Preferred embodiments are defined in the dependent claims. In the following description, although numerous features may be designated as optional, it is nevertheless acknowledged that all features comprised in the independent claims are not to be read as optional. This document relates to methods, systems, and devices for sidelink communications between devices. Sidelink based communications include communications between equipment ("UE") and/or with a basestation. The sidelink communications may include certain sidelink information from a communication device that includes UE information, positioning/location information, or other capabilities that are used for the sidelink communications. Sidelink information that is communicated through sidelink communications may be modified based on priority determinations or position reference signals (PRS). There may be a mapping or associating of configurations that are communicated through sidelink communications. In one embodiment, a method for wireless communication includes communicating, by a first communication device, sidelink information. The communicating is from the first communication device to a second communication device. The communicating is from the first communication device to a third communication device through a fourth communication device. The communicating comprises using at least one of a send, a receive, a broadcast, a unicast, a request, a response, a forward, a exchange or a groupcast. In some embodiments, the sidelink information comprises at least one of: user equipment identification (UEID), positioning information, location information, measurement results, a UE capability, UE's information within its coverage, a zone ID, a response