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.

    CSI feedback for multi-PDSCH transmission

    公开(公告)号:US12294434B2

    公开(公告)日:2025-05-06

    申请号:US17442083

    申请日:2021-08-05

    Applicant: Apple Inc.

    Abstract: Some embodiments include an apparatus, method, and computer program product for implementing Channel State information (CSI) feedback for multi-Physical Downlink Shared Channel (PDSCH) transmissions in a wireless communication system. Some embodiments enable a user equipment (UE) to determine Channel Quality Indicators (CQI) and/or Precoding Matrix Indicators (PMI) for multi-PDSCH transmissions that account for effects of a duration of the multi-PDSCH transmission including the maximum interval between the first and last PDSCH transmissions on the CQI and PMI determinations. Some embodiments include a base station that detects a need for a change in a beam direction and adjusts the beam direction accordingly based on the PMI determinations. Some embodiments enable a desired hybrid automatic repeat request (HARQ)-ACK feedback transmission from a single multi-PDSCH transmission. Some embodiments include performing HARQ bundling with an update to the Type 1 HARQ-ACK codebook based on the multi-PDSCH transmission.

    Enhancement of PUCCH transmissions

    公开(公告)号:US12284653B2

    公开(公告)日:2025-04-22

    申请号:US17755591

    申请日:2021-05-10

    Applicant: Apple Inc.

    Abstract: A user equipment (UE) is configured to determine a repetition factor for physical uplink control channel (PUCCH) transmissions. The UE receives a first physical uplink control channel (PUCCH) repetition factor indication, wherein the first PUCCH repetition factor indication is a radio resource control (RRC)-based indication, receives a second PUCCH repetition factor indication, wherein the second PUCCH repetition factor is dynamically indicated via a downlink control information (DCI) transmission and determines a number of PUCCH repetitions based on at least one of the first and second PUCCH repetition factor indications.

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