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    HARQ DESIGN FOR WIRELESS COMMUNICATIONS
    271.
    发明申请
    HARQ DESIGN FOR WIRELESS COMMUNICATIONS 有权

    公开(公告)号：US20210258104A1

    公开(公告)日：2021-08-19

    申请号：US17174343

    申请日：2021-02-11

    Applicant: Apple Inc.

    Inventor： Chunxuan YE ,  Dawei ZHANG ,  Oghenekome OTERI ,  Wei ZENG ,  Weidong YANG ,  Haitong SUN

    IPC: H04L1/18 ,  H04L1/00 ,  H04W72/04 ,  H04W76/11

    Abstract: Apparatuses, systems, and methods for a wireless device to disable a HARQ feedback in either a semi-static way or in a dynamic way and to perform HARQ optimization. The wireless device may be configured to receive a first set and a second set of HARQ process numbers, where the first set and the second set of HARQ process numbers correspond to a first set and a second set of HARQ processes respectively, where each HARQ process in the first set of HARQ processes is configured to enable a HARQ feedback, and where each HARQ process in the second set of HARQ processes is configured to disable or enable a HARQ feedback. The wireless device may be configured to receive a grant configuration or a SPS, where the grant configuration or the SPS include a flag indicating whether a HARQ-based retransmission is disabled.

    METHOD AND APPARATUS FOR DORMANT CELL(S) WITH MULTI-CELL SCHEDULING
    275.
    发明申请
    METHOD AND APPARATUS FOR DORMANT CELL(S) WITH MULTI-CELL SCHEDULING 有权

    公开(公告)号：US20250056558A1

    公开(公告)日：2025-02-13

    申请号：US18668938

    申请日：2024-05-20

    Applicant: Apple Inc.

    Inventor： Ankit BHAMRI ,  Wei ZENG ,  Haitong SUN ,  Hong HE ,  Dawei ZHANG ,  Chunxuan YE ,  Chunhai YAO

    IPC: H04W72/232

    Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing mechanisms for managing dormant cell(s) within a set of cells for multi-cell scheduling. For example, a UE can be configured to receive information associated with a set of cells for multi-cell scheduling and determine a first reference cell based on the received information. The UE is further configured to determine a second reference cell for performing one or more of blind decode counting and control channel element counting in response to determining that the first reference cell is in a dormant mode. The UE is further configured to perform the one or more of blind decode counting and control channel element counting using the second reference cell.

    METHOD FOR TRACKING REFERENCE SIGNAL (TRS) ENHANCEMENT
    277.
    发明申请
    METHOD FOR TRACKING REFERENCE SIGNAL (TRS) ENHANCEMENT 有权

    公开(公告)号：US20250023685A1

    公开(公告)日：2025-01-16

    申请号：US18902231

    申请日：2024-09-30

    Applicant: Apple Inc.

    Inventor： Yushu ZHANG ,  Dawei ZHANG ,  Haitong SUN ,  Wei ZENG ,  Weidong YANG

    IPC: H04L5/00 ,  H04L1/1867

    Abstract: Some embodiments include an apparatus, method, and computer program product for tracking reference signal (TRS) support of high speed use cases of 5G communications in a single frequency network (SFN), where a user equipment (UE) can measure a Doppler offset of a combined signal from two or more transmission reception points (TRPs) of the 5G communications system. A 5G node B (gNB) node can transmit a periodic, semi-persistent (SP), or aperiodic TRS with high measurement density that the UE uses to measure a Doppler offset of a combined signal. For example, the gNB can: trigger the aperiodic TRS based on a downlink assignment; and/or use lower layer signaling to arrange to transmit a semi-persistent TRS or a periodic TRS with a reduced periodicity. In some embodiments, the gNB can measure the Doppler offset based on an uplink signal, and transmit a TRS based on a pre-compensated Doppler frequency.

    Designs for Multi-DCI Based Multi-TRP Operation
    278.
    发明申请
    Designs for Multi-DCI Based Multi-TRP Operation 有权

    公开(公告)号：US20240405934A1

    公开(公告)日：2024-12-05

    申请号：US18799276

    申请日：2024-08-09

    Applicant: Apple Inc.

    Inventor： Haitong SUN ,  Chunhai YAO ,  Chunxuan YE ,  Dawei ZHANG ,  Hong HE ,  Oghenekome OTERI ,  Wei ZENG ,  Weidong YANG ,  Yushu ZHANG

    IPC: H04L5/00 ,  H04L1/1812 ,  H04W72/23

    Abstract: Various user equipment (UE) operations performed when the UE is in multiple Downlink Control Information (multi-DCI) based multiple transmission and reception point (multi-TRP) configuration. The operations receiving, from one of the first or second gNBs, one or more cell reference signal (CRS) rate matching patterns, wherein the one or more CRS rate matching patterns comprise an indication of a control resource set (CORESET) pool for each of the one or more CRS rate matching patterns and applying the one or more CRS rate matching patterns to a CORESET for a Physical Downlink Shared Channel (PDSCH) based on the indication of the CORESET pool.

    ADDRESSING BEYOND-CP RTD FOR MULTI-RX CHAIN DL RECEPTION
    279.
    发明申请
    ADDRESSING BEYOND-CP RTD FOR MULTI-RX CHAIN DL RECEPTION 有权

    公开(公告)号：US20240381126A1

    公开(公告)日：2024-11-14

    申请号：US18655739

    申请日：2024-05-06

    Applicant: Apple Inc.

    Inventor： Xiang CHEN ,  Haitong SUN ,  Yang TANG ,  Manasa RAGHAVAN ,  Jie CUI ,  Konstantinos SARRIGEORGIDIS

    IPC: H04W24/02 ,  H04L5/00 ,  H04W8/22 ,  H04W74/04

    Abstract: Disclosed herein are system, method, and computer program product embodiments for implementing multiple receive (multi-Rx) chain downlink (DL) reception when the receive timing difference (RTD) at a user equipment (UE) from multiple transmission and reception points (TRPs) is greater than the cyclic prefix (CP). An embodiment operates by configuring a first base station (BS) to transmit a first data and a second BS to transmit a second data simultaneously to a user equipment (UE) during a first symbol period, where the first data from the first BS is received by the UE using a first receive beam and the second data from the second BS is received by the UE using a second receive beam. The embodiment also configures the first BS to transmit a reference signal (RS) to the UE during a second symbol period that is subsequent to the first symbol period. The embodiment then determines a scheduling restriction applied to the second BS during a plurality of symbol periods, wherein the plurality of symbol periods include the second symbol period. Finally, the embodiment provides the scheduling restriction the second BS.

    METHOD FOR PDCCH BUFFER MANAGEMENT
    280.
    发明公开
    METHOD FOR PDCCH BUFFER MANAGEMENT 审中-公开

    公开(公告)号：US20240356705A1

    公开(公告)日：2024-10-24

    申请号：US17913773

    申请日：2021-09-24

    Applicant: Apple Inc.

    Inventor： Yushu ZHANG ,  Haitong SUN ,  Wei ZENG ,  Hong HE ,  Chunhai YAO ,  Chunxuan YE ,  Seyed Ali Akbar FAKOORIAN ,  Sigen YE ,  Dawei ZHANG

    IPC: H04L5/00 ,  H04W72/23

    CPC classification number: H04L5/0053 ,  H04W72/23

    Abstract: Approaches are described that enhance the reliability of physical downlink control channel (PDCCH) detection where the PDCCH can be transmitted repeatedly with different beams. The approaches use soft combining where the user equipment (UE) combines the soft bits from each repetition, with the combined soft bits used to jointly decode the PDCCH repetitions. To support the soft combining, the UE needs to buffer the soft bits. Buffering approaches include determining what contributes towards the buffering, including scenarios where one of the linked search sets (SSs) is dropped, what is contributed in a linked SS set pair, how the duration of buffer counting is determined, and how the UE reports its maximum buffer size capability. In scenarios where the required buffer size exceeds the UE maximum buffer size, a priority rule may be used in the PDCCH decoding using the SS sets pair, where the priority is based on the SS type, the serving cell index, the SS set ID and/or the control channel resource set (CORESET) ID.

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