Satellite and beam specific information updating in non-terrestrial networks

    公开(公告)号:US12081314B2

    公开(公告)日:2024-09-03

    申请号:US17492404

    申请日:2021-10-01

    CPC classification number: H04B7/18519

    Abstract: Aspects relate to mechanisms for wireless communication devices to update satellite and beam specific information. A user equipment (UE) selects a first cell associated with a first satellite for wireless communication in the non-terrestrial network. The UE determines whether to use one or more standard parameters or one or more satellite-cell specific parameters for accessing the first cell. The one or more standard parameters are based on one or more standard characteristics common to a plurality of satellites including the first satellite. The one or more satellite-cell specific parameters are based on a change to at least one standard characteristic of the one or more standard characteristics of the first satellite.

    Enabled/disabled HARQ feedback and HARQ-less processes

    公开(公告)号:US12063179B2

    公开(公告)日:2024-08-13

    申请号:US17379861

    申请日:2021-07-19

    CPC classification number: H04L5/0055 H04L1/1812 H04W72/1263 H04W72/23

    Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for enabled/disabled HARQ feedback and HARQ-less processes. A base station may configure a plurality of logical channels for a UE, where one or more of the logical channels have an associated HARQ process. The UE may receive an allocation of resources from the base station for an uplink grant or a downlink assignment and determine whether the resources have associated HARQ process without HARQ feedback but with HARQ retransmission, an associated HARQ process without HARQ feedback and without HARQ retransmission, or an associated HARQ process with HARQ feedback and with HARQ retransmission. The UE may exchange communication with the base station based on the allocation of resources and the determination of whether the resources have one of the associated HARQ processes.

    TIMING SYNCHRONIZATION FOR NON-TERRESTRIAL NETWORK COMMUNICATIONS

    公开(公告)号:US20240056170A1

    公开(公告)日:2024-02-15

    申请号:US17884458

    申请日:2022-08-09

    CPC classification number: H04B7/18513 H04W56/0005

    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a message from a first non-terrestrial network cell indicating cell synchronization information for a second non-terrestrial network cell. In some examples, the cell synchronization information may indicate whether the first non-terrestrial network cell and the second non-terrestrial network cell are synchronized at a reference point. Additionally, or alternatively, the cell synchronization information may indicate a timing offset value between a first uplink time synchronization reference point of the first non-terrestrial network cell and a second uplink time synchronization reference point of the second non-terrestrial network cell. The UE may calculate a timing associated with signaling from the second non-terrestrial network cell based at least in part on the cell synchronization information. The UE may receive one or more signals from the second non-terrestrial network cell based at least in part on the calculated timing.

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