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    Enhancements to support TRP specific beam failure recovery
    211.
    发明授权
    Enhancements to support TRP specific beam failure recovery 有权

    公开(公告)号：US12273176B2

    公开(公告)日：2025-04-08

    申请号：US17906225

    申请日：2021-09-24

    Applicant: Apple Inc.

    Inventor： Manasa Raghavan ,  Jie Cui ,  Qiming Li ,  Yushu Zhang ,  Yang Tang ,  Haitong Sun ,  Huaning Niu ,  Xiang Chen ,  Dawei Zhang

    IPC: H04B7/06

    Abstract: A user equipment (UE) is configured to establish a connection to a base station, wherein the base station configures the UE with a first beam corresponding to a first transmission reception point (TRP) and a second beam corresponding to a second TRP, wherein the first and second beam are in frequency range 2 (FR2) and wherein the UE does not support simultaneous reception of multiple beams in FR2, detect a beam failure during a beam failure detection (BFD) evaluation period, identify one or more candidate beams during a candidate beam detection (CBD) evaluation period and transmit a beam failure recovery (BFR) request to the base station.

    Sidelink relay selection and re-selection in wireless communication
    212.
    发明授权
    Sidelink relay selection and re-selection in wireless communication 有权

    公开(公告)号：US12267910B2

    公开(公告)日：2025-04-01

    申请号：US17686172

    申请日：2022-03-03

    Applicant: Apple Inc.

    Inventor： Zhibin Wu ,  Chunxuan Ye ,  Dawei Zhang ,  Haijing Hu ,  Haitong Sun ,  Wei Zeng

    IPC: H04W8/00 ,  H04W36/30 ,  H04W52/38 ,  H04W88/04 ,  H04W92/18

    Abstract: Sidelink pathloss between a remote user equipment device (UE) and a relay UE may be determined based at least on transmit power information provided by the relay UE to the remote UE. The remote UE may receive, via a sidelink discovery signal from the relay UE, a message that includes first information representative of a transmit power of the relay UE and/or second information representative of a measured receive signal power of a sidelink solicitation signal previously transmitted by the remote UE and received by the relay UE. The remote UE may determine a sidelink pathloss between the remote UE and the relay UE based at least on the first information and/or the second information. The remote UE may select/reselect a relay UE based on corresponding pathlosses determined for the respective paths between the remote UE and different respective relay UEs.

    Method for beam failure recovery based on unified TCI framework
    213.
    发明授权
    Method for beam failure recovery based on unified TCI framework 有权

    公开(公告)号：US12267702B2

    公开(公告)日：2025-04-01

    申请号：US17438139

    申请日：2021-03-31

    Applicant: Apple Inc.

    Inventor： Yushu Zhang ,  Andre Janssen ,  Haitong Sun ,  Wei Zeng ,  Dawei Zhang ,  Yeong-Sun Hwang ,  Franz J. Eder

    IPC: H04W24/04 ,  H04L5/00 ,  H04W24/08

    Abstract: Apparatuses, systems, and methods for beam failure recovery based on a unified TCI framework. A UE may receive, from a base station, a configuration for a BFR procedure for a CCG. The CCG may include at least two CCs and the UE may periodically receive, from the base station, at least a first BFD RS and a first CBD RS in a first CC included in the CCG. The UE may detect, based on the first BFD RS, a beam failure in at least the first CC and send, to the base station, a BFRQ. The BFRQ may include a candidate beam selected based on at least the first CBD RS and may be sent via a PRACH or MAC CE. The UE may receive, from the base station, a BFR response and apply the candidate beam to the first CC and at least one additional CC of the CCG.

    Beamforming failure detection and recovery in high mmwave systems
    215.
    发明授权
    Beamforming failure detection and recovery in high mmwave systems 有权

    公开(公告)号：US12262414B2

    公开(公告)日：2025-03-25

    申请号：US17441267

    申请日：2020-10-16

    Applicant: Apple Inc.

    Inventor： Oghenekome Oteri ,  Yushu Zhang ,  Huaning Niu ,  Weidong Yang ,  Sigen Ye ,  Haitong Sun ,  Chunxuan Ye ,  Chunhai Yao ,  Hong He ,  Wei Zeng ,  Dawei Zhang

    IPC: H04W74/08 ,  H04L5/00 ,  H04W74/04 ,  H04W74/0816 ,  H04W76/19

    Abstract: Beam determination refers to a set of procedures for an access node (AN) and a user equipment (UE) to select from among downlink communication beams and/or uplink communication beams for downlink and/or uplink communications, respectively. Often times, the downlink communication beams can include one or more downlink control channels, for example, a Physical Downlink Control Channel (PDCCH) and/or a Physical Downlink Shared Channel (PDSCH), to provide downlink reference signals, such as channel-state information reference signals (CSI-RSs), to the UE. The AN can execute various exemplary downlink beam scheduling procedures to control the transmission of the downlink reference signals, such as the CSI-RSs to provide an example, over the downlink communication beams. In some embodiments, the UE can utilize the CSI-RSs to perform beamforming failure detection (BFD) and beamforming failure recovery (BFR) in the wireless networks.

    Method and systems for multiple precoder indication for physical uplink shared channel communications
    218.
    发明授权
    Method and systems for multiple precoder indication for physical uplink shared channel communications 有权

    公开(公告)号：US12256378B2

    公开(公告)日：2025-03-18

    申请号：US17441929

    申请日：2020-08-05

    Applicant: Apple Inc.

    Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang

    IPC: H04W72/1268 ,  H04L5/00 ,  H04W72/23

    Abstract: Approaches for performing Physical Uplink Shared Channel (PUSCH) transmissions include receiving, by a user equipment (UE) from a base station, an indicator of a plurality of precoders corresponding to M Physical Uplink Shared Channel (PUSCH) repetitions, wherein M is an integer. A plurality of precoders corresponding to two or more of the M PUSCH repetitions are indicated. The UE configures the plurality of precoders based on the indicator and transmits one or more of the M Physical Uplink Shared Channel (PUSCH) repetitions corresponding to one or more of the plurality of precoders. The indicator can be provided in higher layer signaling. One or more transmission rank indicator (TRIs) and transmission precoder matrix indicators (TPMIs) for the M PUSCH repetitions can be provided. The indicator can be provided in a scheduling downlink control indicator (DCI) communication. The indicator can also be provided within N sounding reference signal (SRS) resource indicator(s) (SRIs) of the scheduling DCI.

    Beam management solution for MPE
    220.
    发明授权
    Beam management solution for MPE 有权

    公开(公告)号：US12250646B2

    公开(公告)日：2025-03-11

    申请号：US17642207

    申请日：2019-09-12

    Applicant: Apple Inc.

    Inventor： Haitong Sun ,  Chunhai Yao ,  Dawei Zhang ,  Hong He ,  Rohit U Nabar ,  Wei Zeng ,  Yakun Sun ,  Yuchul Kim ,  Yushu Zhang

    IPC: H04B7/00 ,  H04B7/0404 ,  H04B7/06 ,  H04B17/318 ,  H04W52/36 ,  H04W52/42

    Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for triggering a change in beam configuration based on UL beam conditions. The UE may detect an unsafe UL beam condition for an UL beam based, at least in part, on an MPE level being exceeded by the UL beam. In response to the detection, remedial actions that to alleviate the unsafe UL beam condition may be performed. The remedial actions may prioritize UL beam quality over DL beam quality and may include reducing a transmit power of the UL beam based on an MPR, triggering an intra-panel antenna switch to a candidate UL beam that satisfies one or more conditions for intra-panel beam switching, triggering an inter-panel antenna switch to a candidate UL beam that satisfies one or more conditions for intra-panel beam switching, and/or signaling a beam failure to a network serving the UE.

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