公开(公告)号：US20240319359A1

公开(公告)日：2024-09-26

申请号：US18546051

申请日：2022-01-25

申请人： QUALCOMM Incorporated

发明人： Weimin DUAN ,  Alexandros MANOLAKOS ,  JIng LEI

IPC分类号： G01S13/76 ,  H01Q3/46 ,  H01Q15/14

CPC分类号： G01S13/762 ,  H01Q3/46 ,  H01Q15/148

摘要： Disclosed are techniques for positioning. In an aspect, a positioning entity receives a report indicating an operation mode of a reconfigurable intelligent surface (RIS) associated with at least one base station, receives a transmission-to-reception (Tx-Rx) time difference measurement for a network node involved in a round-trip-time (RTT) positioning session with a user equipment (UE), determines a reception-to-transmission (Rx-Tx) time difference measurement for the UE, the Rx-Tx time difference measurement representing a difference between a reception time at the UE of a downlink positioning reference signal from the RIS and a transmission time from the UE of an uplink positioning reference signal towards the RIS, and calculates a distance between the UE and the RIS based, at least in part, on the Tx-Rx time difference measurement and the Rx-Tx time difference measurement.