METHODS AND APPARATUS FOR USING INTERLACED PHYSICAL RESOURCE BLOCKS FOR POSITIONING MEASUREMENTS

    公开(公告)号:US20210360572A1

    公开(公告)日:2021-11-18

    申请号:US17307796

    申请日:2021-05-04

    Abstract: In a positioning session for a user equipment (UE), one or more base stations may receive and derive positioning measurements from uplink (UL) transmission from the UE that include a physical resource block (PRB) interlaced waveform based on at least one of interlaced physical uplink control channel (PUCCH) resource blocks, interlaced physical uplink shared channel (PUSCH) RBs resource blocks, interlaced sounding reference signal (SRS), interlaced uplink (UL) positioning reference signal (PRS), or a combination thereof. The interlaced waveforms span a greater wavelength than if interlacing were not used, and an enhanced accuracy requirement for the positioning measurements based on the span may be used for the positioning measurements. The UL interlaced PRBs may be used for UL positioning measurements for combined downlink (DL) and UL positioning measurements. The base station may report the positioning measurements along with the channel used and enhanced accuracy requirements to a location server for positioning.

    Measurement reporting for bistatic and multi-static radar in cellular systems

    公开(公告)号:US12146940B2

    公开(公告)日:2024-11-19

    申请号:US17465680

    申请日:2021-09-02

    Abstract: A radar system may comprise a first wireless communications system Transmission Reception Point (TRP)configured as a transmitter for sending a transmit signal toward a target, a second wireless communications system TRP configured as a receiver for receiving an echo signal corresponding to a reflection of the transmit signal from the target, and a radar server. The first wireless communications system TRP and the second wireless communications system TRP may be part of a cellular communications system. The second wireless communications system TRP may be configured to generate one or more measurement reports containing one or more of delay, Doppler frequency, and/or angle-of-arrival information. The second wireless communications system TRP may be configured to send the one or more measurement reports to an entity within the cellular communications system.

    Base station antenna array orientation calibration for cellular positioning

    公开(公告)号:US12117547B2

    公开(公告)日:2024-10-15

    申请号:US17376873

    申请日:2021-07-15

    CPC classification number: G01S5/021 G01S5/08 G01S19/01 H04W64/003

    Abstract: Disclosed are techniques for wireless communication. In an aspect, a network entity determines a location of a target base station and a location of at least one reference device, determines an angle-of-arrival (AoA) measurement of one or more reference signals received by at least one antenna array of the target base station from the at least one reference device, determines an expected AoA between the at least one antenna array and the at least one reference device based on the location of the target base station and the location of the at least one reference device, and determines an orientation offset of the at least one antenna array based on a difference between the expected AoA and the AoA measurement.

    TECHNIQUES FOR ENHANCED SOUNDING REFERENCE SIGNAL MULTIPLEXING

    公开(公告)号:US20240137256A1

    公开(公告)日:2024-04-25

    申请号:US18048778

    申请日:2022-10-20

    CPC classification number: H04L27/2613 H04L5/0051

    Abstract: Techniques and devices for wireless communications are described. A user equipment (UE) may receive a configuration from a network entity for multiplexing a reference signal with a data signal in time and in frequency or for multiplexing the reference signal in a Doppler domain. The UE may receive an assignment of multiple time-frequency resources from the network entity for transmission of the reference signal. The UE may multiplex the reference signal across the assigned time-frequency resources in accordance with the received configuration. The UE may transmit the multiplexed reference signal to the network entity.

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