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    Control signaling for uplink frequency selective precoding
    4.
    发明授权
    Control signaling for uplink frequency selective precoding 有权

    公开(公告)号：US12250677B2

    公开(公告)日：2025-03-11

    申请号：US17811997

    申请日：2022-07-12

    Applicant: APPLE INC.

    Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Seyed Ali Akbar Fakoorian ,  Wei Zeng ,  Weidong Yang

    IPC: H04W72/1268 ,  H04B7/06 ,  H04L5/00 ,  H04W72/23

    Abstract: Systems and methods using control signaling for uplink frequency selective precoding at a user equipment (UE) are disclosed herein. A base station may indicate a transmission rank indicator (TRI), a wideband transmission precoder matrix indicator (TPMI), and one or more subband TPMI(s) to the UE. The base station may indicate, to the UE, whether to use the wideband TPMI or a subband TPMI to precode a physical uplink shared channel (PUSCH) transmission from the UE to the base station. The UE then precodes (and transmits) the PUSCH accordingly. Methods of UE application of the indicated subband TPMI(s) to subbands of the bandwidth in which a PUSCH may be transmitted are described. Methods accounting for a UE capability as to non-coherent, partial-coherent, and/or coherent precoding are described. Methods of assigning TPMI(s) to subbands in view of multiple transmission reception point (TRP) use by the UE for UE transmission are described.

    Gradual Timing Adjustment for Wireless Devices in a Non-Terrestrial Network
    8.
    发明申请
    Gradual Timing Adjustment for Wireless Devices in a Non-Terrestrial Network 有权

    公开(公告)号：US20250071710A1

    公开(公告)日：2025-02-27

    申请号：US18726251

    申请日：2022-01-06

    Applicant: Apple Inc.

    Inventor： Jie Cui ,  Yang Tang ,  Qiming Li ,  Chunxuan Ye ,  Manasa Raghavan ,  Xiang Chen ,  Huaning Niu ,  Dawei Zhang ,  Hong He

    IPC: H04W56/00 ,  H04W84/06

    Abstract: This disclosure relates to techniques for a wireless device to perform gradual timing adjustments in a non-terrestrial wireless communication system. According to the techniques described herein, a wireless device may establish a non-terrestrial network based wireless link with a cellular base station. The wireless device may detect a trigger for changing a gradual timing adjustment rate from a first gradual timing adjustment rate to a second gradual timing adjustment rate. The wireless device may determine a time window for which to perform gradual timing adjustment at the second gradual timing adjustment rate. The wireless device may perform gradual timing adjustment at the second gradual timing adjustment rate for the time window.

    Inter Radio Access Technology Measurement without Measurement Gap
    9.
    发明申请
    Inter Radio Access Technology Measurement without Measurement Gap 有权

    公开(公告)号：US20250071589A1

    公开(公告)日：2025-02-27

    申请号：US18726402

    申请日：2022-01-06

    Applicant: APPLE INC.

    Inventor： Jie Cui ,  Yang Tang ,  Qiming Li ,  Manasa Raghavan ,  Xiang Chen ,  Huaning Niu ,  Dawei Zhang ,  Hong He ,  Yushu Zhang ,  Haitong Sun

    IPC: H04W24/10 ,  H04W74/0808

    Abstract: This disclosure relates to techniques for performing inter radio access technology measurements without a measurement gap in a wireless communication system. A wireless device and a cellular base station may establish a wireless link according to a first radio access technology. The cellular base station may indicate to the wireless device to perform inter radio access technology measurements. The wireless device may determine that it is capable of performing the inter radio access technology measurements without a measurement gap. The wireless device may provide capability information to the cellular base station indicating that the wireless device is capable of performing the inter radio access technology measurements without a measurement gap. The wireless device may perform the inter radio access technology measurements without a measurement gap.

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