System and methods for rapid round-trip-time measurement

    公开(公告)号:US11889336B2

    公开(公告)日:2024-01-30

    申请号:US17523793

    申请日:2021-11-10

    CPC classification number: H04W24/10 H04L5/0051 H04W4/029 H04W88/023

    Abstract: Disclosed are techniques for determining round-trip time (RTT) of a user equipment (UE). In an aspect, each gNodeB in a plurality of gNodeBs 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.

    APERIODIC REFERENCE SIGNAL MEASUREMENTS FOR MULTIPLE TRANSMISSION AND RECEPTION POINTS

    公开(公告)号:US20240014965A1

    公开(公告)日:2024-01-11

    申请号:US18042582

    申请日:2021-10-13

    CPC classification number: H04L5/0048 H04L5/0094 H04B7/024

    Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques allow a user equipment (UE) to efficiently identify a trigger state that is linked to a configuration for receiving and measuring reference signals from a transmission and reception point (TRPs). The UE may receive an indication of different lists of trigger states associated with different TRPs, and, when the UE receives downlink control information (DCI) indicating a trigger state index, the UE may reference an appropriate list to identify the trigger state corresponding to the trigger state index. In particular, the UE may determine a control resource set (CORESET) pool index of a CORESET in which the DCI is received, and the UE may identify the trigger state corresponding to the trigger state index from a list of trigger states associated with the CORESET pool index.

    Beam failure recovery techniques
    69.
    发明授权

    公开(公告)号:US11855736B2

    公开(公告)日:2023-12-26

    申请号:US17950891

    申请日:2022-09-22

    Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may identify a resource for wireless communication, the resource being in a first state where the resource is active for wireless communication and is inactive for a communication failure recovery procedure. The wireless device may determine that a communication failure has occurred during a first communication period. In some cases, one or more techniques for confirming the communication failure may be used to verify the failure. The wireless device may transition during a second communication period and based at least in part on the communication failure, the resource to a second state where the resource is inactive for wireless communication and is active for the communication failure recovery procedure. The wireless device may perform the communication failure recovery procedure using the resource transitioned to the second state.

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