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    Handling Multi-TRP Transmissions
    56.
    发明申请
    Handling Multi-TRP Transmissions 有权

    公开(公告)号：US20220303081A1

    公开(公告)日：2022-09-22

    申请号：US17593590

    申请日：2020-05-15

    Applicant: Apple Inc.

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

    IPC: H04L5/00 ,  H04W72/12

    Abstract: A user equipment (UE) is configured with multi-transmission and reception point (multi-TRP) operation. The UE groups capabilities of handling two overlapping physical downlink shared channel (PDSCH) transmissions into a plurality of groups, determining a UE capability of handling two overlapping PDSCH transmissions based on the plurality of groups and transmits the UE capability to a next generation nodeB (gNB) of a 5G new radio (NR) wireless network. The UE also determines if a demodulation reference signal (DMRS) of a physical downlink shared channel (PDSCH) transmission collides with a cell-specific reference signal (CRS) of a long term evolution (LTE) transmission and determines if the CRS originated from a same multi-transmission/reception point (TRP) as the DMRS.

    METHOD FOR PDCCH BUFFER MANAGEMENT
    58.
    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.

    Handling Multi-TRP Transmissions
    59.
    发明公开
    Handling Multi-TRP Transmissions 审中-公开

    公开(公告)号：US20240348385A1

    公开(公告)日：2024-10-17

    申请号：US18748435

    申请日：2024-06-20

    Applicant: Apple Inc.

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

    IPC: H04L5/00 ,  H04W72/23

    CPC classification number: H04L5/0035 ,  H04L5/0048 ,  H04W72/23

    Abstract: A user equipment (UE) is configured with multi-transmission and reception point (multi-TRP) operation. The UE groups capabilities of handling two overlapping physical downlink shared channel (PDSCH) transmissions into a plurality of groups, determining a UE capability of handling two overlapping PDSCH transmissions based on the plurality of groups and transmits the UE capability to a next generation nodeB (gNB) of a 5G new radio (NR) wireless network. The UE also determines if a demodulation reference signal (DMRS) of a physical downlink shared channel (PDSCH) transmission collides with a cell-specific reference signal (CRS) of a long term evolution (LTE) transmission and determines if the CRS originated from a same multi-transmission/reception point (TRP) as the DMRS.

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