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    SWITCHING BETWEEN INTRA-BAND MULTIPLE INPUT MULTIPLE OUTPUT AND INTER-BAND CARRIER AGGREGATION
    4.
    发明申请
    SWITCHING BETWEEN INTRA-BAND MULTIPLE INPUT MULTIPLE OUTPUT AND INTER-BAND CARRIER AGGREGATION 有权

    公开(公告)号：US20210351816A1

    公开(公告)日：2021-11-11

    申请号：US17186580

    申请日：2021-02-26

    Applicant: QUALCOMM Incorporated

    Inventor： Vasanthan RAGHAVAN ,  Tao LUO ,  Mohammad Ali TASSOUDJI ,  Yu-Chin OU ,  Kobi RAVID ,  Ozge KOYMEN ,  Junyi LI

    IPC: H04B7/0413 ,  H04W16/28

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, and a base station may receive, information related to multipath richness of a channel environment and information related to antenna module capabilities associated with the UE for at least a first frequency band and a second frequency band. The base station may transmit, and the UE may receive, information indicating a multiple input multiple output (MIMO) mode in which to operate one or more antenna modules of the UE based at least in part on the information related to the multipath richness of the channel environment, the antenna module capabilities associated with the UE, and respective cell loadings in the first frequency band and the second frequency band. Numerous other aspects are provided.

    USER-EQUIPMENT-REQUESTED BEAMFORMING CALIBRATION
    5.
    发明申请
    USER-EQUIPMENT-REQUESTED BEAMFORMING CALIBRATION 有权

    公开(公告)号：US20240429989A1

    公开(公告)日：2024-12-26

    申请号：US18340598

    申请日：2023-06-23

    Applicant: QUALCOMM Incorporated

    Inventor： Vasanthan RAGHAVAN ,  Kobi RAVID ,  Junyi LI

    IPC: H04B7/06

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may store a beamforming calibration configuration including one or more beamforming parameters. The UE may detect one or more trigger conditions. The UE may transmit a beamforming calibration update request as a result of detecting the one or more trigger conditions. The UE may receive one or more beamforming assistance signals in response to the beamforming calibration update request. The UE may update at least one of the one or more beamforming parameters in the beamforming calibration configuration based, at least in part, on the one or more beamforming assistance signals. Numerous other aspects are described.

    METHODS FOR USING TWO-WAY BEAMFORMING OPERATIONS FOR CALIBRATION
    7.
    发明公开
    METHODS FOR USING TWO-WAY BEAMFORMING OPERATIONS FOR CALIBRATION 审中-公开

    公开(公告)号：US20230353309A1

    公开(公告)日：2023-11-02

    申请号：US17661517

    申请日：2022-04-29

    Applicant: QUALCOMM Incorporated

    Inventor： Vasanthan RAGHAVAN ,  Kobi RAVID ,  Junyi LI

    IPC: H04L5/00

    CPC classification number: H04L5/0051 ,  H04L5/0055

    Abstract: Method and apparatus for two-way beamforming operations for calibration. The apparatus receives a first set of reference signals from a network node using N sets of beam weights over N symbols. The apparatus estimates a complex-valued beamformed channel based on the first set of reference signals. The apparatus transmits a second set of reference signals to the network entity using the N sets of beam weights. The apparatus receives a set of feedback signals from the network entity comprising measurements of the transmitted second set of reference signals. The apparatus computes a set of calibration adjustment factors between transmit and receive parts of a set of beam weights based on the set of feedback signals and the estimated complex-valued beamformed channel. The apparatus performs a calibration adjustment operation based on the computed set of calibrated adjustment factors.

    BEAMFORMING CODEBOOK ADAPTATION FOR FLEXIBLE WIRELESS DEVICES
    9.
    发明申请
    BEAMFORMING CODEBOOK ADAPTATION FOR FLEXIBLE WIRELESS DEVICES 有权

    公开(公告)号：US20250167843A1

    公开(公告)日：2025-05-22

    申请号：US19030806

    申请日：2025-01-17

    Applicant: QUALCOMM Incorporated

    Inventor： Vasanthan RAGHAVAN ,  Mohammad Ali TASSOUDJI ,  Kobi RAVID ,  Yu-Chin OU ,  Ozge KOYMEN ,  Junyi LI

    IPC: H04B7/0456 ,  H04B7/06 ,  H04L5/00

    Abstract: Methods, systems, and devices for wireless communications are described. A codebook adaptation may be performed for a flexible user equipment (UEs) to determine a codebook for a physical configuration of the UE. For example, if the UE determines that the physical configuration does not correspond to a pre-loaded codebook in its memory, the UE may provide information about the physical configuration to a base station to determine a corresponding codebook. Additionally, the UE may request that the base station provide channel information to assist with the codebook determination. In some cases, this request may indicate for the base station to allocate a specific number of channel state information reference signal symbols that the UE can use for the codebook determination. Additionally or alternatively, the UE may generate the codebook internally and then signal to the base station a request for a beam refinement procedure with the generated codebook.

    CALIBRATION OF NON-CO-LOCATED POLARIZED ANTENNA ARRAYS
    10.
    发明申请
    CALIBRATION OF NON-CO-LOCATED POLARIZED ANTENNA ARRAYS 有权

    公开(公告)号：US20240430017A1

    公开(公告)日：2024-12-26

    申请号：US18341526

    申请日：2023-06-26

    Applicant: QUALCOMM Incorporated

    Inventor： Vasanthan RAGHAVAN ,  Kobi RAVID ,  Junyi LI

    IPC: H04B17/11 ,  H01Q21/24 ,  H04B17/309

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may transmit, to a second wireless communication device, capability information including an indication of a type of calibration associated with a non-co-located dual-polarized antenna array of the first wireless communication device. The first wireless communication device may communicate, using the non-co-located dual polarized antenna array, based at least in part on the calibration associated with the non-co-located dual polarized antenna array. Numerous other aspects are described.

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