LOW LATENCY ACK/NACK TRANSMISSION

    公开(公告)号:US20220393797A1

    公开(公告)日:2022-12-08

    申请号:US17886599

    申请日:2022-08-12

    摘要: Some embodiments of the present disclosure provide a user equipment (UE) having active device components and passive device components. Responsive to receiving downlink (DL) transmissions in time division duplexing (TDD) mode, the active device components perform DL decoding while the passive device components perform passive transmission of ACK/NACK data. Such passive transmission may involve encoding the ACK/NACK data in an altered version of received radio frequency (RF) signals and using so-called backscatter communications to reflect the received RF signals, with alteration, using the same frequency resources used to receive the DL transmissions.

    SENSING-ASSISTED CHANNEL ESTIMATION

    公开(公告)号:US20220294668A1

    公开(公告)日:2022-09-15

    申请号:US17748141

    申请日:2022-05-19

    IPC分类号: H04L25/02 H04B7/08

    摘要: Some embodiments of the present disclosure provide for use of a linear chirp signal as a basis for a sensing signal. Modification of the linear chirp signal by a signature function can allow a receiver of the sensing signal to determine an identity for a source of the sensing signal. Accordingly, upon processing the received sensing signal to obtain path parameter estimates, the receiver can direct a transmission of an indication of the path parameter estimates to the source of the sensing signal. Aspects of the present application relate to performing multi-node, multi-path channel estimation on the basis of processing the received sensing signal. Conveniently, the processing is performed with low complexity.

    SENSING-ASSISTED CHANNEL ESTIMATION

    公开(公告)号:US20220131723A1

    公开(公告)日:2022-04-28

    申请号:US17080917

    申请日:2020-10-27

    IPC分类号: H04L25/02 H04B7/08

    摘要: Some embodiments of the present disclosure provide for use of a linear chirp signal as a basis for a sensing signal. Modification of the linear chirp signal by a signature function can allow a receiver of the sensing signal to determine an identity for a source of the sensing signal. Accordingly, upon processing the received sensing signal to obtain path parameter estimates, the receiver can direct a transmission of an indication of the path parameter estimates to the source of the sensing signal. Aspects of the present application relate to performing multi-node, multi-path channel estimation on the basis of processing the received sensing signal. Conveniently, the processing is performed with low complexity.

    DOWNLINK POSITIONING REFERENCE SIGNAL DESIGN BASED ON DOWNLINK CHANNEL MEASUREMENTS

    公开(公告)号:US20220022158A1

    公开(公告)日:2022-01-20

    申请号:US17370544

    申请日:2021-07-08

    摘要: Methods and devices utilizing downlink channel measurements for customization of downlink positioning reference signals (DL PRs) are provided. A serving base station (BS) for a targeted device and one or more non-serving BSs transmit respective downlink reference signals (DL RSs) to the targeted device. The targeted device reports respective downlink channel measurement information for each BS based on the received DL RSs. The BSs each transmit a respective DL PRS to the targeted device for downlink positioning measurement, wherein the respective DL PRS for each BS is configured based in part on the respective downlink channel measurement information reported by the targeted device for that BS. This allows the DL PRS for each BS to be configured taking into account downlink channel conditions between the BS and the targeted device, which can potentially improve positioning measurement accuracy by improving reception of the DL PRS at the targeted device.

    SYSTEMS AND METHODS FOR LOCATING USER EQUIPMENT IN A WIRELESS NETWORK

    公开(公告)号:US20210302561A1

    公开(公告)日:2021-09-30

    申请号:US16835852

    申请日:2020-03-31

    IPC分类号: G01S13/42

    摘要: Methods and apparatus are provided that may simplify and enhance the location of nodes in a network, including ED and mobile TPs, even if all or many of the nodes are mobile. The methods may be used to enable single TP positioning, and may be used to reduce synchronization error. The provided methods make use of smart reflectors having known location. By processing a combination of signals, which may include an original transmitted signal, and/or one or more reflected signals, the location of a receiving node can be determined. Media tagging may be employed to allow a receiver to detect the identity of the nearby reflectors (with known locations) and based on the identity determine the locations of the reflectors. Using this information, the receiving node can detect its location regardless of knowing the transmission source and/or location.

    METHOD AND APPARATUS FOR CHIRP SIGNAL-BASED POSE ESTIMATION

    公开(公告)号:US20220109951A1

    公开(公告)日:2022-04-07

    申请号:US17064733

    申请日:2020-10-07

    IPC分类号: H04W4/029 H04B1/69

    摘要: Some embodiments of the present disclosure provide a transmit point that transmits a downlink chirp sensing waveform (DL CSW) signal. A device receives the DL CSW signal and obtains a cloned chirp sensing waveform. The cloned chirp sensing waveform includes a parameter that can be uniquely associated with the device. The device transmits a UL cloned CSW signal based on the cloned chirp sensing waveform. The transmit point receives the UL cloned CSW signal and processes the UL cloned CSW signal to estimate a pose for the device and associate the estimated pose with the identity of the device.