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    UPLINK TRANSMISSION IN A NON-TERRESTRIAL WIRELESS NETWORK (NTN)
    22.
    发明公开
    UPLINK TRANSMISSION IN A NON-TERRESTRIAL WIRELESS NETWORK (NTN) 审中-公开

    公开(公告)号：US20240031009A1

    公开(公告)日：2024-01-25

    申请号：US17441251

    申请日：2021-08-30

    Applicant: Apple Inc.

    Inventor： Dawei ZHANG ,  Wei ZENG ,  Haitong SUN ,  Dan ZHANG ,  Ruoheng LIU ,  Hong HE ,  Weidong YANG ,  Idan BAR-SADE ,  Yushu ZHANG ,  Chunxuan YE

    IPC: H04B7/185

    CPC classification number: H04B7/18513

    Abstract: Mechanisms are provided for a user equipment (UE) to determine a transmission frequency or a time advance for an uplink transmission from the UE to a base station in a non-terrestrial wireless network (NTN) without global navigation satellite systems (GNSS) information available to the UE. A communication connection between the UE and a base station can be established. The UE can determine that GNSS information is not available, and report to the base station that the GNSS information is not available. The UE can receive, from the base station, an indication of one or more parameters for an uplink transmission from the UE to synchronize the uplink transmission. The UE can determine, based on a current transmission frequency and the received indication of the one or more parameters, a next transmission frequency and transmit the uplink transmission at the determined next transmission frequency.

    PORT SELECTION CODEBOOK ENHANCEMENT
    23.
    发明公开
    PORT SELECTION CODEBOOK ENHANCEMENT 审中-公开

    公开(公告)号：US20240030971A1

    公开(公告)日：2024-01-25

    申请号：US18476560

    申请日：2023-09-28

    Applicant: APPLE INC.

    Inventor： Haitong SUN ,  Chunhai YAO ,  Chunxuan YE ,  Dawei ZHANG ,  Hong HE ,  Wei ZENG ,  Yushu ZHANG

    IPC: H04B7/06

    CPC classification number: H04B7/0608 ,  H04B7/0626 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0658

    Abstract: Apparatus and methods are provided for port selection codebook configuration. A user equipment (UE) may decode a channel state information (CSI) report configuration (CSI-ReportConfig) from a base station. The CSI-ReportConfig indicates up to L CSI reference signal (CSI-RS) ports for selection by the UE out of P CSI-RS ports configured for measuring and reporting CSI. The UE determines selected CSI-RS ports out of the P CSI-RS ports. The selected CSI-RS ports include the L CSI-RS ports or less. The UE generates a port selection matrix W1 corresponding to the selected CSI-RS ports. The UE also generates an indication of the port selection matrix W1 to the base station. The CSI-ReportConfig may further configure the UE to select a subset of frequency basis. The UE determines a selected subset of frequency basis and generates a frequency basis selection matrix Wf corresponding to the selected subset of frequency basis.

    UE REFERENCE TIMING FOR CFRA ON SERVING CELL
    24.
    发明公开
    UE REFERENCE TIMING FOR CFRA ON SERVING CELL 审中-公开

    公开(公告)号：US20240023159A1

    公开(公告)日：2024-01-18

    申请号：US18475938

    申请日：2023-09-27

    Applicant: APPLE INC.

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

    IPC: H04W74/04 ,  H04W56/00 ,  H04W74/00

    CPC classification number: H04W74/04 ,  H04W56/0045 ,  H04W74/004

    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 a 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.

    Timing-Related Considerations for Network-Controlled Repeaters
    28.
    发明公开
    Timing-Related Considerations for Network-Controlled Repeaters 审中-公开

    公开(公告)号：US20240014959A1

    公开(公告)日：2024-01-11

    申请号：US17810909

    申请日：2022-07-06

    Applicant: Apple Inc.

    Inventor： Ankit BHAMRI ,  Hong HE ,  Dawei ZHANG ,  Haitong SUN ,  Oghenekome OTERI ,  Seyed Ali Akbar FAKOORIAN ,  Sigen YE ,  Wei ZENG

    IPC: H04L5/00 ,  H04W72/04

    CPC classification number: H04L5/0048 ,  H04L5/0073 ,  H04W72/0446 ,  H04W72/046

    Abstract: A repeater configured to receive, on a side control channel from a component of a network, side control information including parameters at least for determining time domain resources on which to apply an indicated beam for uplink (UL) transmission reception or downlink (DL) transmission forwarding with a user equipment (UE) on an access link, determine, from the received parameters, whether to apply the indicated beam to a transmission (Tx) spatial filter, a reception (Rx) spatial filter, or both the Tx and Rx spatial filters and apply the indicated beam to the determined Tx spatial filter, Rx spatial filter, or both the Tx and Rx spatial filters for the determined time domain resources when forwarding the DL transmission to the UE or receiving the UL transmission from the UE for forwarding to the network.

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