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    Methods and apparatus for sub-band-based PDCCH hopping in wireless communication
    683.
    发明授权
    Methods and apparatus for sub-band-based PDCCH hopping in wireless communication 有权

    公开(公告)号：US12193012B2

    公开(公告)日：2025-01-07

    申请号：US17441948

    申请日：2020-05-14

    Applicant: Apple Inc.

    Inventor： Hong He ,  Chunhai Yao ,  Dawei Zhang ,  Haitong Sun ,  Jie Cui ,  Wei Zeng ,  Yang Tang ,  Yushu Zhang ,  Zhibin Wu

    IPC: H04W72/23 ,  H04L5/00 ,  H04W24/08 ,  H04W72/0453

    Abstract: An approach for wireless communications to support reduced capability New Radio (NR) with larger available control resource sets (CORESET) bandwidths. Examples include a frequency-hopping CORESET with a predefined hopping pattern configured by higher layers, such as RRC signaling or MAC Control Element (CE) on a per CORESET per UE or purely per UE basis. Frequency hopping patterns for CORESET transmissions include the use of PRBs for CORESETs that are mirrored with respect to the central frequency of active bandwidth part (BWP), and the use of a random parameter to step through the frequency pattern. The sub-band location of the physical downlink shared channel that is scheduled by the physical downlink control channel may be indicated using the DCI format, or may be based on a last slot for PDCCH transmission.

    System and methods for signaling mechanism for UE assistance feedback
    684.
    发明授权
    System and methods for signaling mechanism for UE assistance feedback 有权

    公开(公告)号：US12191936B2

    公开(公告)日：2025-01-07

    申请号：US17421244

    申请日：2020-01-10

    Applicant: Apple Inc.

    Inventor： Toufiqul Islam ,  Hong He ,  Grigory Ermolaev

    IPC: H04B7/022 ,  H04B7/0417 ,  H04W24/10 ,  H04W72/044 ,  H04W72/1268 ,  H04W76/28

    Abstract: Some embodiments of this disclosure include apparatuses and methods for a signaling mechanism for user equipment (UE) assistance feedback in a wireless communication system. At least a radio frequency integrated circuit can be configured to receive a first configuration signal, and transmit a first message comprising a UE assistance feedback, generated based on the first configuration signal, in an uplink (UL) channel. The first message can contain an index of a profile with information on a service requirement, a traffic characteristic, or a combination thereof of a network. A processor, coupled to the radio frequency integrated circuit, can be configured to generate the UE assistance feedback based on the first configuration signal.

    Mitigation of listen before talk conflicts in the unlicensed spectrum
    687.
    发明授权
    Mitigation of listen before talk conflicts in the unlicensed spectrum 有权

    公开(公告)号：US12177897B2

    公开(公告)日：2024-12-24

    申请号：US17437768

    申请日：2021-03-31

    Applicant: Apple Inc.

    Inventor： Jie Cui ,  Dawei Zhang ,  Hong He ,  Manasa Raghavan ,  Qiming Li ,  Xiang Chen ,  Yang Tang

    IPC: H04W74/0808

    Abstract: Apparatuses, systems, and methods for mitigation of listen before talk conflicts in the unlicensed spectrum. A wireless device may receive one or more synchronization signal blocks (SSBs) from a base station (BS) as part of a measurement procedure with listen before talk (LBT). The wireless device may determine one or more LBT failures associated with one or more receive beams of the wireless device. Furthermore, in response to determining the one or more LBT failures associated with the one or more receive beams of the wireless device, the wireless device may extend a measurement period for the one or more receive beams of the wireless device. The wireless device may then receive one or more additional SSBs on the one or more receive beams of the wireless device.

    Systems and methods for beam failure recovery enhancement
    690.
    发明授权
    Systems and methods for beam failure recovery enhancement 有权

    公开(公告)号：US12166559B2

    公开(公告)日：2024-12-10

    申请号：US17593294

    申请日：2021-06-07

    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 ,  H04B17/318 ,  H04L5/00 ,  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.

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