Mechanisms to operate wideband carrier in unlicensed band

    公开(公告)号:US12069722B2

    公开(公告)日:2024-08-20

    申请号:US17439244

    申请日:2020-03-27

    Applicant: Apple Inc.

    CPC classification number: H04W74/0808 H04L1/0013 H04W16/14

    Abstract: Systems, devices, and techniques for wideband operations in unlicensed spectrum are described. A described technique receiving, by a user equipment (UE), a schedule for transmitting on a Physical uplink shared channel (PUSCH) over at least a portion of a plurality of listen-before-talk (LBT) subbands of a bandwidth part (BWP) in an unlicensed spectrum. The scheduled PUSCH bandwidth indicated by the schedule can be greater than a unit bandwidth of a LBT subband. The technique includes performing, by the UE, a LBT procedure on each scheduled LBT subband of the plurality of LBT subbands, each of the scheduled LBT subbands being associated with the scheduled PUSCH bandwidth. The technique includes performing, by the UE, a PUSCH transmission in accordance with the schedule that uses one or more of the scheduled LBT subbands that have passed the LBT procedure.

    RANDOM ACCESS CHANNEL CONFIGURATION IN TIME DOMAIN FOR NR IN UNLICENSED SPECTRUM

    公开(公告)号:US20220225422A1

    公开(公告)日:2022-07-14

    申请号:US17607511

    申请日:2020-04-30

    Applicant: Apple Inc.

    Abstract: Systems, methods, and circuitries are provided for adjusting random access channel occasions support operation in unlicensed spectrum. In one example, a method includes determining a set of preconfigured random access channel (RACH) occasions (ROs) that includes a plurality of successive ROs; deriving an set of adjusted ROs by inserting a time gap between ROs in the set of preconfigured ROs; and transmitting a physical random access channel (PRACH) preamble in at least one RO in the set of adjusted ROs.

    Mechanisms to Operate Wideband Carrier in Unlicensed Band

    公开(公告)号:US20220201746A1

    公开(公告)日:2022-06-23

    申请号:US17439244

    申请日:2020-03-27

    Applicant: Apple Inc.

    Abstract: Systems, devices, and techniques for wideband operations in unlicensed spectrum are described. A described technique receiving, by a user equipment (UE), a schedule for transmitting on a Physical uplink shared channel (PUSCH) over at least a portion of a plurality of listen-before-talk (LBT) subbands of a bandwidth part (BWP) in an unlicensed spectrum. The scheduled PUSCH bandwidth indicated by the schedule can be greater than a unit bandwidth of a LBT subband. The technique includes performing, by the UE, a LBT procedure on each scheduled LBT subband of the plurality of LBT subbands, each of the scheduled LBT subbands being associated with the scheduled PUSCH bandwidth. The technique includes performing, by the UE, a PUSCH transmission in accordance with the schedule that uses one or more of the scheduled LBT subbands that have passed the LBT procedure.

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