Methods of measurement in SDT
    253.
    发明授权

    公开(公告)号:US12058548B2

    公开(公告)日:2024-08-06

    申请号:US17593227

    申请日:2021-04-01

    Applicant: APPLE INC.

    CPC classification number: H04W24/10 H04W74/0833 H04W76/28

    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.

    Retransmission of MsgB in two-step random access procedure

    公开(公告)号:US12010730B2

    公开(公告)日:2024-06-11

    申请号:US18334933

    申请日:2023-06-14

    Applicant: Apple Inc.

    CPC classification number: H04W74/0833 H04W72/1268 H04W74/006

    Abstract: A wireless user equipment (UE) device may transmit a random access preamble to a base station, using a physical resource on an uplink signal. After failing to receive an initial transmission of a response message from the base station (BS), the UE device may monitor for one or more retransmissions of the response message. Each of the retransmission may include a corresponding transmission number. As an alternative, each of the retransmissions may be at least partially scrambled using a corresponding Radio Network Temporary Identifier (RNTI). As another alternative, a window for monitoring and RNTI calculation may be extended to include the one or more retransmissions. The successive retransmissions may include the same set of UE-specific payloads, or, a decreasing set of payloads over time as UE devices acknowledge successful receipt of their respective payloads.

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