公开(公告)号：US20220070714A1

公开(公告)日：2022-03-03

申请号：US17523793

申请日：2021-11-10

Applicant: QUALCOMM Incorporated

Inventor： Guttorm RINGSTAD OPSHAUG ,  Sony AKKARAKARAN ,  Naga BHUSHAN ,  Stephen William EDGE ,  Sven FISCHER

IPC: H04W24/10 ,  H04W88/02 ,  H04L5/00 ,  H04W4/029

Abstract: Disclosed are techniques for determining round-trip time (RTT) of a user equipment (UE). In an aspect, each gNodeB in a plurality of gNodeB s measure signaling data related to an uplink RTT reference signal received from the UE and the downlink RTT reference signal transmitted by each gNodeB. The signaling data comprises one of a processing delay between a time of arrival (TOA) of the uplink RTT reference signal and a time of transmission (TOT) of the downlink RTT reference signal or a total RTT between the TOT of the downlink RTT reference signal and the TOA of the uplink RTT reference signal. The signaling data is sent to a single entity, other than the UE, e.g., another gNodeB or a location server, where signaling data relevant to the UE is aggregated. The aggregated signaling data may be sent to the UE to determine the RTT for the UE or used by the location server to determine the RTT for the UE.