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    UPLINK TRANSMISSION IN A NON-TERRESTRIAL WIRELESS NETWORK (NTN)
    11.
    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.

    Sidelink HARQ
    14.
    发明公开
    Sidelink HARQ 审中-公开

    公开(公告)号：US20230336282A1

    公开(公告)日：2023-10-19

    申请号：US18332880

    申请日：2023-06-12

    Applicant: Apple Inc.

    Inventor： Chunxuan YE ,  Dawei ZHANG ,  Wei ZENG ,  Weidong YANG

    IPC: H04L1/1829 ,  H04L1/1812 ,  H04L5/00 ,  H04W72/20

    CPC classification number: H04L1/1854 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/0053 ,  H04W72/20

    Abstract: A user equipment (UE) communicates with a further UE via a sidelink and communicates with a cell of a network via an uplink. The UE receives a hybrid automatic repeat request (HARQ) acknowledgement (ACK) timing parameter from the network, generates a sidelink HARQ-ACK codebook based on a signaling exchange with the further UE, wherein the sidelink HARQ-ACK codebook is constructed in decreasing order of one or more physical sidelink shared channel (PSSCH) transmission slots associated with a configured physical sidelink feedback channel (PSFCH) occasion, and transmits an indication of the sidelink HARQ-ACK codebook to the cell of the network.

    SYSTEM AND METHOD FOR FAST BEAM TRACKING IN A CELLULAR ENVIRONMENT
    15.
    发明公开
    SYSTEM AND METHOD FOR FAST BEAM TRACKING IN A CELLULAR ENVIRONMENT 审中-公开

    公开(公告)号：US20230155658A1

    公开(公告)日：2023-05-18

    申请号：US17442456

    申请日：2020-08-05

    Applicant: Apple Inc.

    Inventor： Yushu ZHANG ,  Haitong SUN ,  Yakun SUN ,  Weidong YANG ,  Wei ZENG ,  Dawei ZHANG ,  Rohit U. NABAR

    IPC: H04B7/06 ,  H04W8/24

    CPC classification number: H04B7/0695 ,  H04W8/24

    Abstract: Methods and apparatuses are disclosed for performing fast beam tracking in a wireless communication environment. A UE signals to a gNB its capabilities for intra-symbol beam sweeping. Depending on configuration, the UE can either assume that the intra-symbol beam sweeping configuration will be implemented, or will await a response from the gNB before implementing intra-symbol beam sweeping. Although this is generally carried out during initial access between the UE and the gNB, the beam sweeping configuration can be dynamically updated by either the UE or the gNB during established communication. For example, the UE can signal a desired change via its MAC CE, and the gNB can signal its change to the UE via DCI.

    METHODS AND APPARATUS FOR CONFIGURING W1, W2, AND WF for PORT SELECTION CODEBOOK ENHANCEMENT
    18.
    发明申请
    METHODS AND APPARATUS FOR CONFIGURING W1, W2, AND WF for PORT SELECTION CODEBOOK ENHANCEMENT 有权

    公开(公告)号：US20220361015A1

    公开(公告)日：2022-11-10

    申请号：US17593721

    申请日：2021-05-10

    Applicant: APPLE INC.

    Inventor： Haitong SUN ,  Chunhai YAO ,  Dawei ZHANG ,  Hong HE ,  Seyed Ali Akbar FAKOORIAN ,  Wei ZENG ,  Weidong YANG ,  Yushu ZHANG

    IPC: H04W24/08 ,  H04L5/00

    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 configuring a port selection codebook comprising a port selection matrix W1, a combinational coefficient matrix W2, and a frequency basis selection matrix Wf. Based on the CSI-ReportConfig, the determines, for the port selection matrix W1, up to L CSI reference signal (CSI-RS) ports out of P CSI-RS ports configured for measuring and reporting CSI. For the frequency basis selection matrix Wf, the UE determines up to Mv frequency basis out of N frequency basis. For the combinational coefficient matrix W2, the UE determines up to L*Mv entries per layer. The UE reports one or more of the port selection matrix W1, the combinational coefficient matrix W2, and the frequency basis selection matrix Wf to the base station.

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