Multi-TRP Beam Indication Using TCI State
    143.
    发明公开

    公开(公告)号:US20240064725A1

    公开(公告)日:2024-02-22

    申请号:US18474692

    申请日:2023-09-26

    Applicant: Apple Inc.

    CPC classification number: H04W72/046 H04L5/0035 H04W72/232

    Abstract: A user equipment (UE) is configured to configured to use multiple beams for transmission or reception. The UE receives, from a base station, at least one medium access control (MAC) control element (CE) that indicates multiple activated transmission configuration indicator (TCI) states, receives, from the base station, at least one downlink control information (DCI) indicating a subset of TCI states of the multiple activated TCI states, wherein the MAC CE and the DCI are part of a TCI configuration, and wherein the subset of TCI states corresponds to multiple transmission and reception points (TRPs) of a wireless network, maps the subset of TCI states to the corresponding multiple TRPs based on the TCI configuration and selects a beam used for transmission or reception based on one mapped TCI state of the mapped subset of TCI states.

    LAYER 2 UE TO UE DATA FORWARDING
    144.
    发明公开

    公开(公告)号:US20240064602A1

    公开(公告)日:2024-02-22

    申请号:US18494980

    申请日:2023-10-26

    Applicant: APPLE INC.

    CPC classification number: H04W40/02 H04W76/11 H04L45/66 H04W88/04

    Abstract: Systems and methods for using a relay user equipment (UE) to transport data of interest received from a first remote UE to a second remote UE on a UE to UE relay within a wireless communication system are discussed herein. These methods may be performed at Layer 2 of a protocol stack of the wireless communication system. Data packets sent on the UE to UE relay may include an adaptation header including routing information (e.g., Layer 2 addresses, a bearer-specific index, etc.) for the UE to UE relay. An adaptation layer may accordingly be provided within Layer 2 to decode these adaptation headers. In some cases, a per-bearer approach may be used to map between individual direct bearers of a hop by hop path configuration of the UE to UE relay. Embodiments eschewing the adaptation header and instead using logical channel identifiers (LCIDs) to make routing indications are also described.

    SYSTEMS AND METHODS FOR BEAM FAILURE RECOVERY ENHANCEMENT

    公开(公告)号:US20240063877A1

    公开(公告)日:2024-02-22

    申请号:US17593294

    申请日:2021-06-07

    Applicant: APPLE INC.

    CPC classification number: H04B7/0695 H04B17/328

    Abstract: Systems and methods for beam failure recovery (BFR) are disclosed herein. A user equipment (UE) receives downlink (DL) reference signal(s) on corresponding beam(s) from a base station. The UE performs beam failure detection (BFD) on such beams used for user data to determine whether a beam failure has occurred, and candidate beam detection (CBD) on such beams not used for user data to identify candidate beams for recovering from the beam failure. The BFD and the CBD are based on both uplink (UL) channel performance considerations and DL channel performance considerations, as determined using the DL reference signal(s), such that a beam failure may be determined in the UL, the DL, or both, and a candidate beam may be identified for UL, DL, or both. The UE sends a beam failure recovery request BFRQ with this information to the base station, and the system changes beams accordingly.

    ACKNOWLEDGEMENT SIGNALING FOR MULTI-PUSCH AND MULTI-PDSCH SCHEDULING

    公开(公告)号:US20240040582A1

    公开(公告)日:2024-02-01

    申请号:US17593302

    申请日:2021-05-10

    Applicant: APPLE INC.

    CPC classification number: H04W72/232 H04W72/12 H04L1/1854 H04L1/1887

    Abstract: Systems and methods disclosed herein relate to acknowledgement signaling sent by a user equipment (UE) in response to downlink control information (DCI) received from a base station that schedules the use of multiple physical uplink control channels (multi-PUSCH) or multiple physical downlink control channels (multi-PDSCH). Acknowledgement signaling may inform the base station that DCI scheduling the multi-PUSCH/multi-PDSCH was received (or not), so that the base station may reclaim those scheduled resources in the case that the UE remains unaware of them. Methods for performing this signaling include, e.g., the use of HARQ-ACK codebooks (whether in a semi-static or dynamic manner), and aperiodic sounding reference signals (A-SRS). Embodiments involving such DCI received across multiple component carriers of different serving cells of the UE are contemplated. Acknowledgment signaling according to multi-PUSCH/multi-PDSCH subgroups, monitoring windows, acknowledgment signaling enablement/disablement, and the use of DCI to trigger acknowledgment signaling are also discussed.

    HARQ-ACK Codebook Handling
    150.
    发明公开

    公开(公告)号:US20240023135A1

    公开(公告)日:2024-01-18

    申请号:US18476653

    申请日:2023-09-28

    Applicant: Apple Inc.

    CPC classification number: H04W72/232 H04W72/1273 H04L1/1812

    Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable storage media for hybrid automatic repeat request acknowledgement. (HARQ-ACK) codebook handling. In example embodiments, a method is provided. The method comprises determining, at a terminal device, respective hybrid automatic repeat request (HARQ) feedback configurations of a plurality of HARQ processes, wherein each HARQ feedback configuration indicates whether HARQ feedback is enabled or disabled for a corresponding HARQ process; and generating a HARQ-ACK codebook for Physical Downlink Shared Channel (PDSCH) based on the HARQ feedback configurations of the plurality of HARQ processes; and transmitting the HARQ-ACK codebook to a network device.

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