Retransmission of MsgB in Two-Step Random Access Procedure

    公开(公告)号:US20240284518A1

    公开(公告)日:2024-08-22

    申请号:US18652003

    申请日:2024-05-01

    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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