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Handling of radio frequency front-end group delays for round trip time estimation

專利號(hào)
US11159972B2
公開日期
2021-10-26
申請(qǐng)人
QUALCOMM Incorporated(US CA San Diego)
發(fā)明人
Sony Akkarakaran; Tao Luo; Joseph Binamira Soriaga; Alexandras Manolakos; Naga Bhushan; Guttorm Ringstad Opshaug; Sven Fischer
IPC分類
H04W24/10; H04W64/00; H04W72/04
技術(shù)領(lǐng)域
rttr,ue,rttm,gd,rtt,network,may,gnodebs,signal,gnodeb
地域: CA CA San Diego

摘要

Disclosed are techniques for handling of radio frequency (RF) front-end group delays for round trip time (RTT) estimation. In an aspect, a network entity determines a network total group delay (GD) and a user equipment (UE) determines a UE total GD. The network entity transmits one or more RTT measurement (RTTM) signals to the UE. Each RTTM signal includes a RTTM waveform. The UE determines one or more one or more RTT response (RTTR) payloads for one or more RTTR signals. Each RTTR signal also includes a RTTR waveform. The UE transmits the RTTR signal(s) to the network entity. For each RTTR signal, a transmission time of the RTTR waveform and/or the RTTR payload is/are determined based on the UE total GD. The network entity determines a RTT between the UE and the network entity based on the RTTM signal(s), the RTTR signal(s), and the network total GD.

說明書

FIG. 14 illustrates an example user equipment apparatus 1400 represented as a series of interrelated functional modules connected by a common bus. A module for determining UE total group delay 1410 may correspond at least in some aspects to, for example, a processing system, such as processing system 332 in FIG. 3, as discussed herein. A module for reporting UE capability 1420 may correspond at least in some aspects to, for example, a communication device, such as communication device 308 in FIG. 3, and/or a processing system, such as processing system 332 in FIG. 3, as discussed herein. A module for receiving notifications 1430 may correspond at least in some aspects to, for example, a communication device, such as communication device 308 in FIG. 3, and/or a processing system, such as processing system 332 in FIG. 3, as discussed herein. A module for receiving signal(s) 1430 (e.g., RTTM signals, test signals, etc.) may correspond at least in some aspects to, for example, a communication device, such as communication device 308 in FIG. 3, and/or a processing system, such as processing system 332 in FIG. 3, as discussed herein. A module for determining payload 1450 may correspond at least in some aspects to, for example, a processing system, such as processing system 332 in FIG. 3, as discussed herein. A module for transmitting signal(s) 1460 (e.g., RTTR signals, test signals, etc.) may correspond at least in some aspects to, for example, a communication device, such as communication device 308 in FIG. 3, and/or a processing system, such as processing system 332 in FIG. 3, as discussed herein.

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