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

專利號
US11159972B2
公開日期
2021-10-26
申請人
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. 3 illustrates several sample components (represented by corresponding blocks) that may be incorporated into an apparatus 302, an apparatus 304, and an apparatus 306 (corresponding to, for example, a UE, a base station (e.g., a gNodeB), and a network entity or location server, respectively) to support the operations as disclosed herein. As an example, the apparatus 302 may correspond to a UE 102, the apparatus 304 may correspond to any of gNodeBs 202-206, and the apparatus 306 may correspond to the E-SMLC 225, SLP 240, SLP 260, or GMLC 220. It will be appreciated that the components may be implemented in different types of apparatuses in different implementations (e.g., in an ASIC, in a System-on-Chip (SoC), etc.). The illustrated components may also be incorporated into other apparatuses in a communication system. For example, other apparatuses in a system may include components similar to those described to provide similar functionality. Also, a given apparatus may contain one or more of the components. For example, an apparatus may include multiple transceiver components that enable the apparatus to operate on multiple carriers and/or communicate via different technologies.

權(quán)利要求

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