Signaling for configuring downlink transmissions

    公开(公告)号:US11751174B2

    公开(公告)日:2023-09-05

    申请号:US17119845

    申请日:2020-12-11

    CPC classification number: H04W72/044 H04W24/02 H04W72/23

    Abstract: Methods, systems, and devices for signaling for configuring downlink transmissions are described. A user equipment (UE) may receive a configuration message from a base station indicating that a control resource set (CORESET) for a downlink control channel is associated with a set of transmission configuration indicator (TCI) states. The UE may subsequently receive a control message from the base station activating one or more of the TCI states. The UE may decode the downlink control channel based on the configuration message and the one or more activated TCI states. The UE may identify one or more TCI states (e.g., associated with the CORESET) to apply to a reception of a physical downlink shared channel (PDSCH) transmission. The UE may determine to apply one or more of the TCI states activated by the control message. The UE may determine to apply one or more different TCI states.

    Methods and apparatus for TRP differentiation based on SSB grouping

    公开(公告)号:US11641301B2

    公开(公告)日:2023-05-02

    申请号:US17131590

    申请日:2020-12-22

    Abstract: The present disclosure relates to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a base station. The apparatus can receive SSB grouping information associated with one or more SSB groups, each of the one or more SSB groups including one or more TRPs. The apparatus can also receive at least one of TCI information or QCL information, each of the TCI information and the QCL information indicating an SSB of the one or more SSB groups that is associated with a downlink Tx beam for downlink data or an uplink Rx beam for uplink data. Additionally, the apparatus can communicate the downlink data from or the uplink data to TRPs in a same SSB group or TRPs in different SSB groups based on at least one of the SSB grouping information, the TCI information, or the QCL information.

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