Scheduling Request (SR) Enhancements for 5G Real-Time Extended Reality (XR) Services

    公开(公告)号:US20240049215A1

    公开(公告)日:2024-02-08

    申请号:US17882449

    申请日:2022-08-05

    Applicant: Apple Inc.

    CPC classification number: H04W72/1263 H04W72/1284

    Abstract: A user equipment (UE) includes a transceiver and a processor that is configured to identify a plurality of flows corresponding to data to be sent in an uplink (UL) direction. The processor is also configured to map a subset of the plurality of flows to a logical channel (LCH) of a plurality of LCHs. The processor is further configured to multiplex two or more scheduling requests (SRs) into an integrated SR for requesting one or more physical uplink control channel (PUCCH) resources corresponding to each flow of the subset of the plurality of flows of at least one LCH of the plurality of LCHs. Each SR included in the integrated SR corresponds to an SR for the data associated with at least one flow of the subset of the plurality of flows.

    Cellular reporting techniques for synchronization state changes

    公开(公告)号:US11895602B2

    公开(公告)日:2024-02-06

    申请号:US17731578

    申请日:2022-04-28

    Applicant: Apple Inc.

    Abstract: Techniques are disclosed relating to reporting channel state information (CSI) when synchronization state is altered. In some embodiments, a UE starts a timing alignment timer (TAT) in response to a time alignment command (TAC) from a cellular network for one or more serving cells. In some embodiments, the UE stores a configuration for a semi-persistent (SP) channel state information (CSI) report for the apparatus over a physical uplink shared channel (PUSCH). In some embodiments, the UE activates the SP-CSI report based on downlink control information (DCI) from the network. In some embodiments, the UE transmits one or more SP-CSI reports according to the configuration. In some embodiments, in response to expiration of the TAT, the UE deactivates all active stored configurations of SP-CSI reports that use the PUSCH and that correspond to the one or more serving cells. In some embodiments, this may avoid collisions with PUSCH transmissions from other UEs, e.g., when the UE returns to an in-sync state.

    MCG FAILURE RECOVERY ENHANCEMENT IN DC MODE
    198.
    发明公开

    公开(公告)号:US20230362751A1

    公开(公告)日:2023-11-09

    申请号:US17598093

    申请日:2021-01-28

    Applicant: Apple Inc.

    CPC classification number: H04W36/00698 H04W36/0079 H04W36/00695

    Abstract: Methods and systems are disclosed for a UE of a wireless communication network to recover from MCG radio link failures in a MR-DC system when the SCG is deactivated or otherwise not enabled. When a MCG link failure is detected and the SCG is deactivated, the UE may activate the SCG for the UE to use the SCG link to transmit and receive signaling messages or data as part of the MCG failure recovery procedure. When the MCG link failure is detected and the UE is configured to add the SCG upon the satisfaction of certain condition, but the condition has not occurred, the UE may check to determine whether one condition is MCG failure and whether the radio link quality of the SCG exceeds a threshold. If the radio link quality of the SCG exceeds the threshold, the UE may apply the SCG configuration to add the SCG.

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