Group delay calibration for carrier aggregation / multi-radio access technology

    公开(公告)号:US12047124B2

    公开(公告)日:2024-07-23

    申请号:US18305216

    申请日:2023-04-21

    CPC classification number: H04B17/364 H04B17/104 H04B17/14 H04W64/00 H04W88/10

    Abstract: Disclosed are techniques for handling of radio frequency (RF) front-end group delays for roundtrip time (RTT) estimation. In an aspect, a network node transmits first and second RTT measurement (RTTM) signals to a user equipment (UE) and receives first and second RTT response (RTTR) signals from the UE. The network node measures the transmission times of the RTTM signals and the reception times of the RTTR signals, and the UE measures the transmission times the RTTM signals and the transmission times of the RTTR signals. The group delays of the transmit/receive chains of the network node and the UE are determined for one set of transmit/receive chains based on the first RTTM signal and first RTTR signal. The group delays of the transmit/receive chain used for the second RTTM signal and the second RTTR signal are determined relative to the group delay of the one set of transmit/receive chains.

    VISUAL SENSING FOR POSITIONING
    290.
    发明公开

    公开(公告)号:US20240192357A1

    公开(公告)日:2024-06-13

    申请号:US18065279

    申请日:2022-12-13

    CPC classification number: G01S13/867 G01S5/0284

    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support visual sensing for positioning. In a first aspect, a method of wireless communication includes receiving a first image of an object from an image capture device. The method also includes receiving location information that includes a coordinate point, a position of the UE determined based on the coordinate point, or a combination thereof. The coordinate point is generated based on a relative orientation between the UE and a network entity, and a matched pair of points including a first point of the first image and a second point of a second image of the object captured by the network entity. Other aspects and features are also claimed and described.

Patent Agency Ranking