INTER-REFERENCE SIGNAL RESOURCE USAGE FOR CARRIER PHASE MEASUREMENTS

    公开(公告)号:US20250048157A1

    公开(公告)日:2025-02-06

    申请号:US18718757

    申请日:2022-12-20

    Abstract: Disclosed are systems, apparatuses, processes, and computer-readable media to determine a location of a device using carrier phase positioning. A process includes transmitting, at the device to a network entity, a phase measurement capability of a device (e.g., a user equipment (UE)) for subcarrier set pairs of different resources received by the device. The different resources are associated with a reference signal. The process can include receiving, at the device, a phase measurement request from a network entity for configuring phase measurements of the subcarrier set pairs of the different resources. The process can include transmitting a phase measurement report to the network entity based on the phase measurement request, the phase measurement report including information associated with a measured phase difference of at least one subcarrier set pair associated with the different resources.

    MEASUREMENT REPORTING ENHANCEMENTS IN BATCH MODE REPORTING

    公开(公告)号:US20240298204A1

    公开(公告)日:2024-09-05

    申请号:US18658846

    申请日:2024-05-08

    CPC classification number: H04W24/10 H04L5/0048 H04W64/00

    Abstract: Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) performs a plurality of positioning measurements of a corresponding plurality of positioning reference signal (PRS) resources within a measurement window, wherein the measurement window spans at least one system frame number (SFN) rollover, and transmits, to a location server, at least one measurement report associated with the measurement window, the at least one measurement report including a plurality of timestamp information elements corresponding to the plurality of positioning measurements, wherein at least one timestamp information element of the plurality of timestamp information elements indicates the at least one SFN rollover.

    METHODS AND APPARATUS FOR MAINTAINING TRANSMISSION INTEGRITY AND AUTHENTICITY THROUGH CHANNEL MEASUREMENTS AND REPORTING

    公开(公告)号:US20240259799A1

    公开(公告)日:2024-08-01

    申请号:US18289197

    申请日:2022-05-02

    CPC classification number: H04W12/06 H04W12/121

    Abstract: The connection between a user equipment (UE) and a base station may be authenticated in the physical layer, and the presence of an unauthorized intervening device may be identified based on predicted measurement values of downlink reference signals and the actual measurement values for the current downlink reference signals. The predicted measurement values are produced based on previous measurements of downlink reference signals that are known to be received from the base station, e.g., after upper layer initial authentication. The predicted values may be for positioning measurements, channel measurements, or velocity or direction of travel measurements, or a combination thereof. A difference between the predicted and actual measurement values indicates that the previously received reference signals and the currently received reference signals are not from the same entity, and thus, an intervening entity is likely present in the communication channel performing a man in the middle or replay attack.

    FFT WINDOW ADJUSTMENT BASED ON PRS PEAK PROCESSING

    公开(公告)号:US20230422190A1

    公开(公告)日:2023-12-28

    申请号:US18252033

    申请日:2021-12-13

    CPC classification number: H04W56/001 H04W48/16

    Abstract: A user equipment (UE) associated with a wireless network determines a first reference signal time difference value. The UE determines a first RSTD estimate and a first RSTD uncertainty associated with the first RSTD value, identifies a search interval for the first RSTD value, the search interval extending from a difference between the first RSTD estimate and the first RSTD uncertainty to a sum of the first RSTD estimate and the first RSTD uncertainty, receives wireless signals during the identified search interval, determines a Fast Fourier Transform (FFT) window offset for decoding a first positioning reference signal (PRS) received during the identified search interval, and determines the first RSTD value based at least in part on the determined FFT window offset.

    MULTIPLE DOWNLINK POSITIONING TECHNIQUES CAPABILITY

    公开(公告)号:US20230031427A1

    公开(公告)日:2023-02-02

    申请号:US17788874

    申请日:2021-01-14

    Abstract: A user equipment (UE) includes: a transceiver configured to receive positioning signals; a memory; and a processor, communicatively coupled to the transceiver and the memory, configured to: send, via the transceiver to a network entity, a capability indication that includes a first positioning-method indication indicating that the processor supports simultaneous processing of a first combination of positioning methods; and simultaneously process one or more first positioning signals in accordance with the first combination of positioning methods to determine first position information for the UE.

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