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US-12625225-B2 - Measurement and reporting for new radio wireless sensing

US12625225B2US 12625225 B2US12625225 B2US 12625225B2US-12625225-B2

Abstract

Disclosed are techniques for wireless communication. In some aspects, a network entity receives a positioning report from a user equipment (UE). The network entity transmits, to the UE, an indication of a reference transmission-reception point (TRP) for sensing operations based at least on the positioning report. In some aspects, a UE receives from a network entity, an indication of a reference TRP to use in a cooperative sensing scheme. The UE transmits a sensing measurement report including one or more measurements associated with time of arrivals (TOAs) of arrival paths of the reference TRP and one or more neighboring TRPs with respect to a reference time.

Inventors

  • Wooseok Nam
  • Sony Akkarakaran

Assignees

  • QUALCOMM INCORPORATED

Dates

Publication Date
20260512
Application Date
20230728

Claims (20)

  1. 1 . A method of wireless communication performed by a network entity, comprising: receiving a positioning report from a first user equipment (UE); determining one or more line of sight (LOS) transmission-reception points (TRPs) and one or more non-line of sight (NLOS) TRPs based at least on the positioning report; and transmitting, to the first UE, an indication of a first reference TRP for sensing operations based at least on the positioning report, wherein the first reference TRP is selected based at least in part on a number of UEs in a set of UEs including the first UE that have a LOS path with the first reference TRP.
  2. 2 . The method of claim 1 , further comprising: applying a filtering scheme to determine the one or more LOS TRPs and the one or more NLOS TRPs.
  3. 3 . The method of claim 1 , further comprising: determining the one or more LOS TRPs based at least in part on a strength of a LOS path from each LOS TRP of the one or more LOS TRPs to the first UE.
  4. 4 . The method of claim 1 , wherein: the first reference TRP has a first LOS path; and a second TRP of the one or more LOS TRPs has a second LOS path that is stronger than the first LOS path.
  5. 5 . The method of claim 1 , further comprising: determining a set of delay measurements, the set of delay measurements comprising a delay measurement from each LOS TRP of the one or more LOS TRPs to each UE of a plurality of user equipments (UEs) including the first UE; and selecting the first reference TRP from the one or more LOS TRPs based at least in part on the set of delay measurements.
  6. 6 . The method of claim 5 , further comprising: selecting a second LOS TRP to be in a first subset of the one or more LOS TRPs and the one or more NLOS TRPs with the first reference TRP based at least in part on the set of delay measurements; and transmitting an indication to the first UE that first reference signals corresponding to the first reference TRP are common with second reference signals corresponding to the second LOS TRP.
  7. 7 . The method of claim 6 , wherein the first subset including the first reference TRP comprises a cooperative sensing scheme.
  8. 8 . The method of claim 1 , further comprising: transmitting an indication of a first timing offset to the first UE, and wherein: the first timing offset corresponds to a time delay associated with signal transmission from the first reference TRP; and the first timing offset is determined based at least in part on the positioning report.
  9. 9 . The method of claim 1 , further comprising: transmitting an indication of a first timing reference to the first UE, and wherein the first timing reference corresponds to a global navigation satellite system (GNSS) associated with signal transmission from the first reference TRP.
  10. 10 . The method of claim 1 , further comprising: determining a second reference TRP for sensing operations based at least on a cooperative sensing scheme for a plurality of user equipments (UEs) including the first UE and a second UE; and transmitting, to the second UE, an indication of the second reference TRP for sensing operations.
  11. 11 . The method of claim 10 , wherein the first reference TRP and the second reference TRP correspond to a same target object in the cooperative sensing scheme.
  12. 12 . A method of wireless communication performed by a user equipment (UE), comprising: receiving, from a network entity, an indication of a first reference transmission-reception point (TRP) to use in a cooperative sensing scheme, wherein the first reference TRP is selected based at least in part on a number of user equipments (UEs) in a set of UEs including the first UE that have a line of sight (LOS) path with the first reference TRP; and transmitting a sensing measurement report including one or more measurements associated with time of arrivals (TOAs) of arrival paths of the first reference TRP and one or more neighboring TRPs with respect to a reference time.
  13. 13 . The method of claim 12 , wherein the reference time is determined based at least in part on a transmission time associated with the first reference TRP.
  14. 14 . The method of claim 12 , further comprising: receiving, from the network entity, an indication of a timing offset to use in the cooperative sensing scheme.
  15. 15 . The method of claim 14 , wherein the reference time is determined based at least in part on the timing offset.
  16. 16 . The method of claim 14 , further comprising: determining a relative time difference value associated with a time of arrival (TOA) of an arrival path from a second TRP of the one or more neighboring TRPs from the timing offset, a TOA for a first arrival path (FAP) of the first reference TRP, and the TOA of the arrival path from the second TRP; and including the relative time difference value in the sensing measurement report.
  17. 17 . The method of claim 12 , wherein at least one arrival path of the arrival paths of the first reference TRP and the one or more neighboring TRPs is estimated to be a non-line of sight (NLOS) path.
  18. 18 . The method of claim 12 , further comprising: receiving an indication that the UE is to refrain from including a time of arrival (TOA) associated with a first arrival path (FAP) of a second TRP of the one or more neighboring TRPs in the sensing measurement report and to include a TOA associated with a FAP of a third TRP of the one or more neighboring TRPs in the sensing measurement report.
  19. 19 . A network entity, comprising: one or more memories; one or more transceivers; and one or more processors communicatively coupled to the one or more memories and the one or more transceivers, the one or more processors, either alone or in combination, configured to: receive, via the one or more transceivers, a positioning report from a first user equipment (UE); determine one or more line of sight (LOS) transmission-reception points (TRPs) and one or more non-line of sight (NLOS) TRPs based at least on the positioning report; and transmit, via the one or more transceivers and to the first UE, an indication of a first reference TRP for sensing operations based at least on the positioning report, wherein the first reference TRP is selected based at least in part on a number of UEs in a set of UEs including the first UE that have a LOS path with the first reference TRP.
  20. 20 . The network entity of claim 19 , wherein the one or more processors, either alone or in combination, are further configured to: apply a filtering scheme to determine the one or more LOS TRPs and the one or more NLOS TRPs.

Description

BACKGROUND OF THE DISCLOSURE 1. Field of the Disclosure Aspects of the disclosure relate generally to wireless technologies. 2. Description of the Related Art Wireless communication systems have developed through various generations, including a first-generation analog wireless phone service (1G), a second-generation (2G) digital wireless phone service (including interim 2.5G and 2.75G networks), a third-generation (3G) high speed data, Internet-capable wireless service and a fourth-generation (4G) service (e.g., Long Term Evolution (LTE) or WiMax). There are presently many different types of wireless communication systems in use, including cellular and personal communications service (PCS) systems. Examples of known cellular systems include the cellular analog advanced mobile phone system (AMPS), and digital cellular systems based on code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), the Global System for Mobile communications (GSM), etc. A fifth generation (5G) wireless standard, referred to as New Radio (NR), enables higher data transfer speeds, greater numbers of connections, and better coverage, among other improvements. The 5G standard, according to the Next Generation Mobile Networks Alliance, is designed to provide higher data rates as compared to previous standards, more accurate positioning (e.g., based on reference signals for positioning (RS-P), such as downlink, uplink, or sidelink positioning reference signals (PRS)), and other technical enhancements. These enhancements, as well as the use of higher frequency bands, advances in PRS processes and technology, and high-density deployments for 5G, enable highly accurate 5G-based positioning. SUMMARY The following presents a simplified summary relating to one or more aspects disclosed herein. Thus, the following summary should not be considered an extensive overview relating to all contemplated aspects, nor should the following summary be considered to identify key or critical elements relating to all contemplated aspects or to delineate the scope associated with any particular aspect. Accordingly, the following summary has the sole purpose to present certain concepts relating to one or more aspects relating to the mechanisms disclosed herein in a simplified form to precede the detailed description presented below. In an aspect, a method of wireless communication performed by a network entity includes receiving a positioning report from a first user equipment (UE); and transmitting, to the first UE, an indication of a first reference transmission-reception point (TRP) for sensing operations based at least on the positioning report. In some aspects, the method includes determining one or more line of sight (LOS) transmission-reception points (TRPs) and one or more non-line of sight (NLOS) TRPs based at least on the positioning report; and selecting the first reference TRP from the one or more LOS TRPs. In some aspects, the method includes applying a filtering scheme to determine the one or more LOS TRPs and the one or more NLOS TRPs. In some aspects, the method includes determining the one or more LOS TRPs based at least in part on a strength of a LOS path from each LOS TRP of the one or more LOS TRPs to the first UE. In some aspects, selecting the first reference TRP from the one or more LOS TRPs comprises selecting the first reference TRP based at least in part on a number of user equipments (UEs) in a set of UEs including the first UE that have a LOS path with the first reference TRP. In some aspects, the first reference TRP has a first LOS path; and a second TRP of the one or more LOS TRPs has a second LOS path that is stronger than the first LOS path. In some aspects, the method includes determining a set of delay measurements, the set of delay measurements comprising a delay measurement from each LOS TRP of the one or more LOS TRPs to each UE of a plurality of UEs including the first UE; and selecting the first reference TRP from the one or more LOS TRPs based at least in part on the set of delay measurements. In some aspects, the method includes selecting a second LOS TRP to be in a first subset of the one or more LOS TRPs and the one or more NLOS TRPs with the first reference TRP based at least in part on the set of delay measurements; and transmitting an indication to the first UE that first reference signals corresponding to the first reference TRP are common with second reference signals corresponding to the second LOS TRP. In some aspects, the first subset including the first reference TRP comprises a cooperative sensing scheme. In some aspects, the method includes transmitting an indication of a first timing offset to the first UE, and wherein the first timing offset corresponds to a time delay associated with signal transmission from the first reference TRP and the first timing offset is determined based at least in part on the positioning report. In some aspects, the