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    Using automatic gain control to indicate target sidelink receiving UE
    1.
    发明授权
    Using automatic gain control to indicate target sidelink receiving UE 有权

    公开(公告)号：US12225482B2

    公开(公告)日：2025-02-11

    申请号：US17650782

    申请日：2022-02-11

    Applicant: QUALCOMM Incorporated

    Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Junyi Li ,  Kobi Ravid

    IPC: H04W52/52 ,  H04L27/26 ,  H04W72/02 ,  H04W72/0446

    Abstract: Aspects are provided which allow AGC symbols to be applied for identifying or indicating target Rx UEs of sidelink communications from Tx UEs. A Tx UE transmits an AGC signal to a Rx UE in a RB associated with the Rx UE. The Rx UE receives the AGC signal from the Tx UE. The Tx UE transmits sidelink data to the Rx UE after the AGC signal. The Rx UE decodes sidelink data from the Tx UE in response to the AGC signal being received in a RB associated with the Rx UE. The Rx UE refrains from decoding the sidelink data from the Tx UE in response to the AGC signal being received in a different RB than the RB associated with the Rx UE. In this way, Rx UEs may save monitoring and processing power and time in receiving and decoding sidelink communications.

    Antenna calibration using two-way communications
    3.
    发明授权
    Antenna calibration using two-way communications 有权

    公开(公告)号：US11728866B1

    公开(公告)日：2023-08-15

    申请号：US17804819

    申请日：2022-05-31

    Applicant: QUALCOMM Incorporated

    Inventor： Vasanthan Raghavan ,  Kobi Ravid ,  Junyi Li

    IPC: H04B7/06

    CPC classification number: H04B7/0634 ,  H04B7/0617

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may receive, from a second network node, a first set of reference signals, wherein receiving the first set of reference signals comprises receiving each reference signal using a respective antenna element of the first network node. The first network node may transmit, to the second network node, a second set of reference signals, wherein the second set of reference signals is based on the first set of reference signals, and wherein each reference signal of the second set of reference signals is associated with an antenna element of the plurality of antenna elements of the first network node. The first network node may receive, from the second network node, an estimation report comprising estimation information associated with the second set of reference signals. Numerous other aspects are described.

    Determining sub-dominant clusters in a millimeter wave channel
    4.
    发明授权
    Determining sub-dominant clusters in a millimeter wave channel 有权

    公开(公告)号：US11206074B2

    公开(公告)日：2021-12-21

    申请号：US16679793

    申请日：2019-11-11

    Applicant: QUALCOMM Incorporated

    Inventor： Vasanthan Raghavan ,  Jung Ho Ryu ,  Kobi Ravid ,  Juergen Cezanne ,  Junyi Li

    IPC: H04W4/00 ,  H04B7/06 ,  H04W24/10 ,  H04W16/28 ,  H04B7/0456

    Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive a first beam measurement report from a second wireless device, the first beam measurement report indicating a first set of beam measurements for a wireless channel between the first wireless device and the second wireless device. The first wireless device may transmit to the second wireless device a cluster validity metric for at least one beam in the first beam measurement report. The first wireless device may receive from the second wireless device, in response to transmitting the cluster validity metric, a second beam measurement report indicating a second set of beam measurements for the wireless channel. The first wireless device may select a beam for transmitting to the second wireless device based at least in part on the first and second beam measurement reports.

    Handling dynamic blockage in millimeter wave communication systems
    5.
    发明授权
    Handling dynamic blockage in millimeter wave communication systems 有权

    公开(公告)号：US10819409B2

    公开(公告)日：2020-10-27

    申请号：US16297536

    申请日：2019-03-08

    Applicant: QUALCOMM Incorporated

    Inventor： Vasanthan Raghavan ,  Kobi Ravid ,  Jung Ho Ryu ,  Junyi Li

    IPC: H04B7/06 ,  H04B7/0426 ,  H04B17/336 ,  H04B17/327 ,  H04B7/155

    Abstract: Aspects are provided which handle dynamic blockage of beams transmitted by a base station to UEs in millimeter wave communication. In one aspect, the base station identifies at least two UEs with which the base station has established a link and which may be potentially blocked from the base station by a dynamic blocker such as a moving vehicle. After the potentially blocked UEs are identified, the base station schedules all identified UEs for joint beam training and receives feedback transmitted by the UEs to determine if a dynamically blocked spatial region exists. If a blockage exists, the base station performs a follow-up procedure to avoid the dynamically blocked spatial region and provide coverage for the UEs, for example, by blanking out or not using blocked beams in subsequent beam training and/or by coordinating with a neighbor cell. The base station may thus proactively improve coverage of dynamically blocked UEs.

    DETERMINING SUB-DOMINANT CLUSTERS IN A MILLIMETER WAVE CHANNEL
    9.
    发明申请
    DETERMINING SUB-DOMINANT CLUSTERS IN A MILLIMETER WAVE CHANNEL 审中-公开

    公开(公告)号：US20200186228A1

    公开(公告)日：2020-06-11

    申请号：US16679793

    申请日：2019-11-11

    Applicant: QUALCOMM Incorporated

    Inventor： Vasanthan Raghavan ,  Jung Ho Ryu ,  Kobi Ravid ,  Juergen Cezanne ,  Junyi Li

    IPC: H04B7/06 ,  H04W24/10 ,  H04B7/0456 ,  H04W16/28

    Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive a first beam measurement report from a second wireless device, the first beam measurement report indicating a first set of beam measurements for a wireless channel between the first wireless device and the second wireless device. The first wireless device may transmit to the second wireless device a cluster validity metric for at least one beam in the first beam measurement report. The first wireless device may receive from the second wireless device, in response to transmitting the cluster validity metric, a second beam measurement report indicating a second set of beam measurements for the wireless channel. The first wireless device may select a beam for transmitting to the second wireless device based at least in part on the first and second beam measurement reports.

    Mitigation of calibration errors
    10.
    发明授权
    Mitigation of calibration errors 有权

    公开(公告)号：US10588089B1

    公开(公告)日：2020-03-10

    申请号：US16138880

    申请日：2018-09-21

    Applicant: QUALCOMM Incorporated

    Inventor： Vasanthan Raghavan ,  Mohammad Ali Tassoudji ,  Kobi Ravid ,  Yu-Chin Ou ,  Ozge Koymen ,  Junyi Li

    IPC: H04B7/04 ,  H04W52/24

    Abstract: Wireless communications systems and methods related to mitigation of calibration errors are provided. A base station (BS) transmits, via an antenna array including a plurality of antenna elements, a first communication signal using a first number of the plurality of antenna elements and a first transmission power level to a user equipment (UE). The BS receives from at least one UE, a measurement report based on the first communication signal. The BS transmitting a second communication signal using a second number of the plurality of antenna elements and a second transmission power level based on the one or more measurement reports. At least one of the first number of the plurality of antenna elements is different from the second number of the plurality of antenna elements, or the first transmission power level is different from the second transmission power level. Other aspects and features are also claimed and described.

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