Physical Sidelink Feedback Channel (PSFCH) Range Extension with Long PSFCH Format

    公开(公告)号:US20220311582A1

    公开(公告)日:2022-09-29

    申请号:US17437093

    申请日:2020-08-05

    Applicant: Apple Inc.

    Abstract: Embodiments are presented herein of apparatuses, systems, and methods for performing vehicle-to-everything (V2X) sidelink communications with hybrid automatic repeat request (HARQ) feedback include using a new long physical sidelink feedback channel (PFSCH) format, i.e., PFSCH format 1, to assign feedback resources for various sidelink communication networks and environments where the existing or legacy sidelink feedback format, i.e., the short PFSCH format, referred to herein as PFSCH format 0, is insufficient to support effective acknowledgements (ACKs) and non-acknowledgements (NACKs) due to the limited nature of the format design.

    Reporting uplink listen-before-talk failure

    公开(公告)号:US12284670B2

    公开(公告)日:2025-04-22

    申请号:US17759788

    申请日:2020-02-12

    Applicant: Apple Inc.

    Abstract: The exemplary embodiments relate to a user equipment (UE) delivering an indication of one or more uplink listen-before-talk (LBT) failures to a network. The UE may identify a predetermined condition corresponding to one or more uplink listen-before-talk (LBT) failures associated with a special cell (SpCell). The UE is triggered to provide an indication of uplink LBT failure associated with the SpCell to the network based on the predetermined condition. Next, the UE may determine a type of message that is to be used to deliver the indication of uplink LBT failure associated with the SpCell to the network. The UE may transmit the type of message including the indication of uplink LBT failure associated with the SpCell to the network. Subsequently, the UE may determine that the network received the indication of uplink LBT failure associated with the SpCell.

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