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    METHODS AND APPARATUS FOR RADIO RESOURCE CONTROL BASED BANDWIDTH PARTS SWITCHING
    3.
    发明申请
    METHODS AND APPARATUS FOR RADIO RESOURCE CONTROL BASED BANDWIDTH PARTS SWITCHING 审中-公开

    公开(公告)号：WO2021203311A1

    公开(公告)日：2021-10-14

    申请号：PCT/CN2020/083794

    申请日：2020-04-08

    Applicant: APPLE INC. ,  ZHANG, Yushu

    Inventor： CUI, Jie ,  ZHANG, Dawei ,  SUN, Haitong ,  HE, Hong ,  YAN, Hongbo ,  TANG, Yang

    IPC: H04W72/04

    Abstract: A method and apparatus of a device that switches bandwidth parts for a user equipment device and a base station is described. In an exemplary embodiment, the device receives an indication to switch to the bandwidth part for the user equipment on the wireless link from the base station. In addition, the device switches to the new bandwidth part for the user equipment. The device further signals that the switching to the new bandwidth part has occurred in a time period smaller than a predefined time period. The device additionally communicates information on the wireless link using the new bandwidth part.

    UE REFERENCE TIMING FOR CFRA ON SERVING CELL
    5.
    发明申请
    UE REFERENCE TIMING FOR CFRA ON SERVING CELL 审中-公开

    公开(公告)号：WO2023283939A1

    公开(公告)日：2023-01-19

    申请号：PCT/CN2021/106815

    申请日：2021-07-16

    Applicant: APPLE INC.

    Inventor： CUI, Jie ,  ZHANG, Dawei ,  HE, Hong ,  YAN, Hongbo ,  NIU, Huaning ,  RAGHAVAN, Manasa ,  LI, Qiming ,  CUI, Shengshan ,  CHEN, Xiang ,  TANG, Yang

    IPC: H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04W74/08

    Abstract: Systems and methods for determining a timing of a random access channel (RACH) occasion (RO) used to transmit a contention free random access (CFRA) preamble triggered by the receipt of an physical downlink control channel (PDCCH) order in a PDCCH are disclosed herein. A user equipment (UE) receives the PDCCH order and determines a timing offset value between the RO and a signal (e.g., a synchronization signal block (SSB), the PDCCH, a reference signal, etc. ) to be used as a timing source. The UE also determines the arrival time of the signal to be used at the timing source. The UE then determines a time of the RO (during which the CFRA preamble will be transmitted) according to the arrival time and the timing offset value. Timing advance (TA) value (s) may also be accounted for as part of such a determination.

    UE REFERENCE TIMING FOR CFRA ON SERVING CELL
    10.
    发明公开
    UE REFERENCE TIMING FOR CFRA ON SERVING CELL 审中-公开

    公开(公告)号：EP4294109A2

    公开(公告)日：2023-12-20

    申请号：EP23207256.1

    申请日：2021-07-16

    Applicant: Apple Inc.

    Inventor： CUI, Jie ,  ZHANG, Dawei ,  HE, Hong ,  YAN, Hongbo ,  NIU, Huaning ,  RAGHAVAN, Manasa ,  LI, Qiming ,  CUI, Shengshan ,  CHEN, Xiang ,  TANG, Yang

    IPC: H04W74/08

    Abstract: Systems and methods for determining a timing of a random access channel (RACH) occasion (RO) used to transmit a contention free random access (CFRA) preamble triggered by the receipt of an physical downlink control channel (PDCCH) order in a PDCCH are disclosed herein. A user equipment (UE) receives the PDCCH order and determines a timing offset value between the RO and a signal (e.g., a synchronization signal block (SSB), the PDCCH, a reference signal indicated in an active transmission configuration indicator (TCI), etc.) to be used as a timing source. The UE also determines the arrival time of the signal to be used at the timing source. The UE then determines a time of the RO (during which the CFRA preamble will be transmitted) according to the arrival time and the timing offset value. Timing advance (TA) value(s) may also be accounted for as part of such a determination.

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