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    TIMING ADVANCE TECHNIQUES TO MANAGE CROSS LINK INTERFERENCE IN 5G COMMUNICATION SYSTEMS
    83.
    发明公开
    TIMING ADVANCE TECHNIQUES TO MANAGE CROSS LINK INTERFERENCE IN 5G COMMUNICATION SYSTEMS 审中-公开

    公开(公告)号：US20240155525A1

    公开(公告)日：2024-05-09

    申请号：US18225995

    申请日：2023-07-25

    Applicant: Apple Inc.

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

    IPC: H04W56/00 ,  H04L5/14

    CPC classification number: H04W56/0045 ,  H04L5/1469

    Abstract: Systems, methods, and apparatuses disclosed herein can mitigate interference in a wireless network. These systems, methods, and apparatuses can determine a mode of operation of a base station (BS) within the wireless network. These systems, methods, and apparatuses can select a first time advance (TA) when the BS is operating in a static time division duplex (TDD) mode of operation or a second TA when the BS is operating in a sub-band full duplex (SBFD) mode of operation or a dynamic TDD mode of operation. These systems, methods, and apparatuses can advance signals on an uplink (UL) by the first TA to cause the signals on the UL to be time aligned with other signals from other UEs on the UL at the BS to mitigate inter carrier interference (ICI) at the BS. Otherwise, these systems, methods, and apparatuses can advance the signals on the UL by the second TA to cause the signals on the UL to be time aligned with signals from the BS on the DL at a victim UE within the wireless network to mitigate cross link interference (CLI) at the victim UE.

    Multi-TRP Beam Indication Using TCI State
    86.
    发明公开
    Multi-TRP Beam Indication Using TCI State 审中-公开

    公开(公告)号：US20240072869A1

    公开(公告)日：2024-02-29

    申请号：US17754575

    申请日：2021-04-06

    Applicant: Apple Inc.

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

    IPC: H04B7/06 ,  H04L5/00 ,  H04W72/232

    CPC classification number: H04B7/0695 ,  H04L5/0048 ,  H04L5/0053 ,  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.

    SYSTEMS AND METHODS FOR BEAM FAILURE RECOVERY ENHANCEMENT
    89.
    发明公开
    SYSTEMS AND METHODS FOR BEAM FAILURE RECOVERY ENHANCEMENT 审中-公开

    公开(公告)号：US20240056160A1

    公开(公告)日：2024-02-15

    申请号：US18494962

    申请日：2023-10-26

    Applicant: APPLE INC.

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

    IPC: H04B7/06 ,  H04W76/18

    CPC classification number: H04B7/06964 ,  H04W76/18

    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.

    TRP-Specific PUSCH Transmissions for Multi-TRP Operation
    90.
    发明公开
    TRP-Specific PUSCH Transmissions for Multi-TRP Operation 审中-公开

    公开(公告)号：US20240048320A1

    公开(公告)日：2024-02-08

    申请号：US17754460

    申请日：2021-04-06

    Applicant: Apple Inc.

    Inventor： Haitong SUN ,  Dawei ZHANG ,  Huaning NIU ,  Oghenekome OTERI ,  Seyed Ali Akbar FAKOORIAN ,  Wei ZENG ,  Weidong YANG ,  Yushu ZHANG

    IPC: H04L5/00 ,  H04W72/232

    CPC classification number: H04L5/0051 ,  H04W72/232

    Abstract: A user equipment (UE) is configured to communicate with one or more transmission and reception points (TRPs). The UE receives a sounding reference signal (SRS) resource set configuration including a first resource set corresponding to a first transmission and reception point (TRP) and a second resource set corresponding to a second TRP, receives a downlink control information (DCI) transmission including an SRS resource indicator (SRI) indicating (i) which resource from the first resource set should be selected for a first physical uplink shared channel (PUSCH) transmission to a first TRP, and (ii) which resource from the second resource set should be selected for a second PUSCH transmission to a second TRP and transmits the first PUSCH transmission to the first TRP and the second PUSCH transmission to the second TRP.

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