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.

    Systems and methods for enhancement on sidelink power control

    公开(公告)号:US12238686B2

    公开(公告)日:2025-02-25

    申请号:US18531176

    申请日:2023-12-06

    Applicant: APPLE INC.

    Abstract: Systems and methods for sidelink (SL) power control within wireless communication systems are disclosed herein. A user equipment (UE) selects a parameter set to use to calculate a transmit power of one or more channels to be transmitted according to an SL session with a peer UE from a plurality of parameter sets each configured for use according to a distance between the UE and the peer UE. A UE determines whether an SL pathloss based calculation is to be used to calculate a transmit power of a channel according to an SL session with a peer UE, wherein that calculation is configured to be used depending on a distance between the UE and the peer UE. UE selection of a number of physical SL feedback channel (PSFCH) transmissions to match a UE capability and determinations regarding whether to perform PSFCH reception or PSFCH transmission are also discussed.

    Methods of measurement in SDT
    209.
    发明授权

    公开(公告)号:US12231942B2

    公开(公告)日:2025-02-18

    申请号:US18494423

    申请日:2023-10-25

    Applicant: APPLE INC.

    Abstract: Systems and methods for performing measurements of one or more cells during an small data transmission (SDT) procedure between a user equipment (UE) and a network when the UE is in a radio resource control (RRC) INACTIVE state are described herein. Beam and/or cell measurements taken during an SDT measurement period of the SDT procedure may be used to determine one or more respective cell qualities, among other possibilities. Beginnings and endings of the SDT measurement period, and the manner (timing) for taking measurements within the SDT measurement period, are also described. The cell qualities so determined can then be used to monitor, during the SDT measurement period, for a measurement event, which causes the UE to send a measurement report to the network having data determined using those cell qualities, and/or to send messaging intended to induce the network to change the RRC state of the UE.

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