SYSTEM ARCHITECTURE FOR DIRECT NTN COMMUNICATION WITHOUT A FEEDER LINK

    公开(公告)号:US20240340980A1

    公开(公告)日:2024-10-10

    申请号:US18295663

    申请日:2023-04-04

    CPC classification number: H04W76/10 H04W84/06

    Abstract: A method for wireless communication at a network entity and related apparatus are provided. In the method, the network entity receives, from a first user equipment (UE), a communication signal for an end-to-end (E2E) communication with a second UE. The communication signal includes identification data for identifying the second UE for the E2E communication. The network entity further routes the communication signal through the network entity, where the communication signal bypasses ground-based feeder links, and transmits, to the second UE, the communication signal to enable the E2E communication between the first UE and the second UE.

    SECONDARY POSITIONING REFERENCE SIGNALS FOR NON-TERRESTRIAL NETWORKS IN 5G NEW RADIO

    公开(公告)号:US20230051054A1

    公开(公告)日:2023-02-16

    申请号:US17793524

    申请日:2020-02-07

    Abstract: Satellites in a non-terrestrial network may provide positioning reference signals (PRS) to user equipment (UE), with which the UE may determine its position using propagation delay difference measurements, such as Time Difference of Arrival (TDOA) measurement. Due to the large distances between satellites and the UE, the propagation delay differences in the PRS received from satellites may exceed half a radio frame, resulting in a frame level timing ambiguity in the differential measurements. The satellites transmit secondary PRS, along with primary PRS, that include timing information to resolve frame level timing ambiguity of the primary PRS. The positioning occasions in the secondary PRS, for example, may be aligned with corresponding positioning occasions primary PRS within each radio frame, and are transmitted with a periodicity that is an integer multiple (greater than 1) of that of the primary PRS to resolve the frame level timing ambiguity of the primary PRS.

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