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    TIMING ADVANCE TECHNIQUES TO MANAGE CROSS LINK INTERFERENCE IN 5G COMMUNICATION SYSTEMS
    164.
    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
    166.
    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
    168.
    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.

    CSI FEEDBACK FOR MULTI-PDSCH TRANSMISSION
    170.
    发明公开
    CSI FEEDBACK FOR MULTI-PDSCH TRANSMISSION 审中-公开

    公开(公告)号：US20240030986A1

    公开(公告)日：2024-01-25

    申请号：US17442083

    申请日：2021-08-05

    Applicant: Apple Inc.

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

    IPC: H04B7/06

    CPC classification number: H04B7/0632 ,  H04B7/0626

    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.

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