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    Cross-cell beam failure recovery
    12.
    发明授权
    Cross-cell beam failure recovery 有权

    公开(公告)号：US12231204B2

    公开(公告)日：2025-02-18

    申请号：US17442108

    申请日：2020-08-04

    Applicant: Apple Inc.

    Inventor： Wei Zeng ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Oghenekome Oteri ,  Weidong Yang ,  Sigen Ye ,  Chunxuan Ye ,  Chunhai Yao ,  Jie Cui ,  Yang Tang ,  Yushu Zhang

    IPC: H04B7/06 ,  H04W24/08 ,  H04W56/00 ,  H04W74/0833 ,  H04W76/19 ,  H04W36/08

    Abstract: This disclosure relates to performing beam failure recovery during an inter-cell connection involving a UE in communication with one or more base stations in a cellular communication system. In various embodiments, a user equipment determines one or more beam failures by monitoring one or more reference signals transmitted by one or more base stations, where the UE is connected to the one or more base stations. The UE further performs candidate beam detection by monitoring at least one candidate reference signal that is transmitted by one or more candidate base stations, where at least one candidate base station (a first candidate base station) is different from the one or more base stations to which the UE was previously communicating. The UE selects the first candidate base station based on the candidate beam detection, and transmits a beam failure recovery request (BFRQ) message to the first candidate base station based on the selection.

    Method for beam reporting for multi-TRP transmission schemes
    13.
    发明授权
    Method for beam reporting for multi-TRP transmission schemes 有权

    公开(公告)号：US12219368B2

    公开(公告)日：2025-02-04

    申请号：US17438873

    申请日：2021-01-14

    Applicant: Apple Inc.

    Inventor： Yushu Zhang ,  Haitong Sun ,  Wei Zeng ,  Dawei Zhang ,  Weidong Yang ,  Yakun Sun ,  Qiming Li ,  Jie Cui ,  Hong He ,  Chunhai Yao

    IPC: H04W16/28 ,  H04B17/336 ,  H04W24/10

    Abstract: Apparatuses, systems, and methods for beam reporting to facilitate multiple transmission and reception points, multi-TRPs, transmission schemes. A UE may receive, from a base station a configuration to report a beam quality based on at least one of a first reporting scheme and a second reporting scheme or a configuration of measurement resources for each TRP of a plurality of TRPs. The UE may report the beam quality based on the configuration or L1 measurements for multiple beam pairs and a recommended and/or assumed transmission scheme based on the configured measurement resources. The first reporting scheme may include the UE reporting at least one L1 measurement for multiple beams and the second reporting scheme may include the UE reporting at least one L1 measurement for multiple beam pairs. The recommended and/or assumed transmission scheme may be a non-coherent-joint transmission (NC-JT) transmission scheme and/or a single frequency network (SFN) transmission scheme.

    Power saving for user equipment through sidelink resource allocation
    16.
    发明授权
    Power saving for user equipment through sidelink resource allocation 有权

    公开(公告)号：US12200622B2

    公开(公告)日：2025-01-14

    申请号：US17438669

    申请日：2020-10-21

    Applicant: Apple Inc.

    Inventor： Chunxuan Ye ,  Chunhai Yao ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Huaning Niu ,  Jia Tang ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang

    IPC: H04W4/00 ,  H04W52/02

    Abstract: A user equipment (UE) configured to determine a resource selection window which identifies a first set (e.g., a total set) of candidate resources. The UE may then remove one or more candidate resources from the first set of candidate resources in response to receiving sidelink control information (SCI) from a pedestrian UE with a reservation of the one or more first candidate resources. After removal of these candidate resources from the initial or first set based on their presumed unavailability, the result may be a second set of candidate resources, which may be a subset of the initial or first set for use in communicating with a third UE. The UE may also be configured to remove candidate resources based on a reference signal receive power (RSRP) threshold which can also be adjusted based on a maximum value or a highest priority of the pedestrian UE's data.

    Methods and apparatus for configuring W1, W2, and WF for port selection codebook enhancement
    19.
    发明授权
    Methods and apparatus for configuring W1, W2, and WF for port selection codebook enhancement 有权

    公开(公告)号：US12185142B2

    公开(公告)日：2024-12-31

    申请号：US18476711

    申请日：2023-09-28

    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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