SMALL GAP DURING UPLINK SWITCH IN MULTI-TRP
    174.
    发明公开

    公开(公告)号:US20230361946A1

    公开(公告)日:2023-11-09

    申请号:US17441399

    申请日:2021-01-15

    Applicant: Apple Inc.

    CPC classification number: H04L5/0035 H04W52/367

    Abstract: Apparatuses, systems, and methods for providing downlink control for multi-TRP transmission. A wireless device, comprising: at least one antenna; at least one radio coupled to the at least one antenna; and a processor coupled to the at least one radio and configured to cause the wireless device to: determine a gap period is to be applied between a first uplink transmission to a cellular base station via a first transmission reception point (TRP) and a second uplink transmission to the cellular base station via a second TRP; and perform the first and second uplink transmissions consecutively with the gap period applied between them.

    CSI-RS ENHANCEMENT FOR PORT SELECTION CODEBOOK WITH CHANNEL RECIPROCITY

    公开(公告)号:US20230361829A1

    公开(公告)日:2023-11-09

    申请号:US17442035

    申请日:2021-02-10

    Applicant: Apple Inc.

    CPC classification number: H04B7/0626 H04W76/20

    Abstract: The present disclosure relates to apparatus, methods, computer-readable storage medium and computer program product for CSI-RS enhancement for Port Selection Codebook with Channel Reciprocity. A cellular base station, comprising: at least one antenna; at least one radio coupled to the at least one antenna; and a processor coupled to the at least one radio; wherein the cellular base station is configured to: provide a Radio Resource Control (RRC) message to a wireless device; and provide a Channel State Information-Reference Signal (CSI-RS) to the wireless device via one or more ports based on the RRC message, wherein, the RRC message at least indicates one or more of: information on a density of the CSI-RS, information on time domain locations of the CSI-RS, information on a subset of ports for the wireless device to measure the CSI-RS, and information on a subset of Code Division Multiplexing (CDM) groups for the wireless device to measure the CSI-RS.

    SEMI-STATIC CHANNEL ACCESS FOR TRAFFIC WITH DIFFERENT PRIORITIES

    公开(公告)号:US20230239928A1

    公开(公告)日:2023-07-27

    申请号:US17442535

    申请日:2020-10-16

    Applicant: Apple Inc.

    CPC classification number: H04W74/0825

    Abstract: Current 5G provisions for wireless communications do not allow for the differentiation of channel access by User Equipments (UEs) with different priorities. Approaches are described by which priority access for UEs in a controlled environment using frame based equipment (FBE), and in particular for different UEs or the same UE that has different configured grants. The approaches are particularly helpful for ultra-reliable low-latency communication (URLLC) UEs. In one approach, the UE performs a clear channel assessment (CCA) in an idle period before the fixed frame period (FFP), followed by a channel access priority test. In an alternative approach, the UE performs a channel access priority test before the UE performs a clear channel assessment (CCA) in an idle period before the fixed frame period (FFP). Other approaches include setting the fixed frame period length to different sizes for each UE, using a random number of skipped fixed frame periods, and the gNB configuring UEs with multiple semi-static channel access mode parameters.

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