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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

The apparatus 304 and the apparatus 306 include at least one communication device (represented by the communication device 320 and the communication device 326) for communicating with other nodes. For example, the communication device 326 may comprise a network interface (e.g., one or more network access ports) that is configured to communicate with one or more network entities via a wire-based or wireless backhaul connection. In some aspects, the communication device 326 may be implemented as a transceiver configured to support wire-based or wireless signal communication. This communication may involve, for example, sending and receiving: messages, parameters, or other types of information. Accordingly, in the example of FIG. 3, the communication device 326 is shown as comprising a transmitter 328 and a receiver 330 (e.g., network access ports for transmitting and receiving). Similarly, the communication device 320 may comprise a network interface that is configured to communicate with one or more network entities via a wire-based or wireless backhaul. As with the communication device 326, the communication device 320 is shown as comprising a transmitter 322 and a receiver 324.

權(quán)利要求

1
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