METHODS AND SYSTEMS FOR INTER-UE COORDINATION SCHEME2

    公开(公告)号:US20250159699A1

    公开(公告)日:2025-05-15

    申请号:US18836548

    申请日:2022-02-11

    Applicant: Apple Inc.

    Abstract: A user equipment including a transceiver and a processor is disclosed. The processor is configured to receive from another UE a first sidelink control information (SCI) format payload identifying a number of resources reserved for transmission by the other UE. The processor is configured to detect, based on the received first SCI format and one or more resources selected by the UE for transmission, resource collision corresponding to one or more resources of the number of resources reserved for transmission by the other UE. The processor is configured to send, in response to the detected resource collision, a physical sidelink feedback channel (PSFCH) to the other UE for inter-UE coordination (IUC) of the number of resources reserved for transmission by the other UE.

    ACTION DELAY FOR A COMMON TRANSMISSION CONFIGURATION INDICATION (TCI) SWITCH

    公开(公告)号:US20250158761A1

    公开(公告)日:2025-05-15

    申请号:US18836416

    申请日:2022-02-11

    Applicant: Apple Inc.

    Abstract: A user equipment (UE) is configured to communicate with a base station using a set of component carriers (CCs) configured for a carrier aggregation (CA) mode, in accord with a first common transmission configuration indication (TCI) identifier (ID) applied to the set of CCs. The UE is also configured to receive, from the base station, a command to switch from applying a first common TCI ID to the set of CCs to applying a second common TCI ID to the set of CCs; transmit, to the base station, an acknowledgement of the command to apply the second common TCI ID to the set of CCs; and transmit data to or receive data from the base station, using the set of CCs and in accord with the second common TCI ID, after an action delay including a first time period in which the acknowledgement is transmitted. The first time period is based on a smallest subcarrier spacing of the set of CCs.

    Method and apparatus for CSI enhancement for multi-TRP coherent joint transmission

    公开(公告)号:US12289145B2

    公开(公告)日:2025-04-29

    申请号:US18447388

    申请日:2023-08-10

    Applicant: APPLE INC.

    Abstract: Apparatus and methods are provided for CSI enhancement for multi-TRP coherent joint transmission. A user equipment (UE) receives signals from a plurality of transmission and reception points (TRPs). The UE determines, based on the signals, multiple TRP (multi-TRP) coherent joint transmission (CJT) channel state information (CSI) report information for a codebook based on a spatial basis selection matrix, a combination coefficient matrix, and a frequency basis selection matrix. The spatial basis selection matrix is layer common, polarization common, and TRP independent. The UE reports, to one or more of the plurality of TRPs, the multi-TRP CJT CSI report information.

    ENHANCEMENT IN NTN MOBILITY
    487.
    发明申请

    公开(公告)号:US20250106719A1

    公开(公告)日:2025-03-27

    申请号:US18972101

    申请日:2024-12-06

    Applicant: APPLE INC.

    Abstract: Apparatuses, systems, and methods for enhancement in NTN mobility. A cellular base station may serve as a source base station of a handover procedure from the source base station to a target non-terrestrial network (NTN) base station. The cellular base station may configure a parameter associated with the target NTN base station in a handover command, the parameter being related to NTN mobility, and send the handover command to a wireless device for use by the wireless device during the handover procedure. The wireless device may receive the handover command from the cellular base station, and perform the handover procedure using the parameter associated with the target NTN base station.

    Mechanisms for indicating beam directions

    公开(公告)号:US12262349B2

    公开(公告)日:2025-03-25

    申请号:US17438044

    申请日:2020-10-15

    Applicant: Apple Inc.

    Abstract: A base station may transmit beam indication information to one or more user equipment (UE) devices. For each of a plurality of time units (e.g., symbols) in a time interval (e.g., spanning one or more slots), the beam indication information indicates a corresponding beam that the base station will use to transmit or receive. A UE device may have knowledge of the beam in which it currently resides, e.g., by performing power measurements during a beam scan procedure. Thus, the beam indication information enables the UE to perform transmissions and/or receptions (e.g., configured transmissions and/or receptions) during the appropriate time unit(s). The beam indication information may be dynamically transmitted as part of downlink control information. This transmission may omni-directional, wide beam, or narrow beam. Various schemes of encoding the beam indication information are contemplated.

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