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    MITIGATION OF CALIBRATION ERRORS
    31.
    发明申请
    MITIGATION OF CALIBRATION ERRORS 审中-公开

    公开(公告)号：WO2020060707A1

    公开(公告)日：2020-03-26

    申请号：PCT/US2019/047145

    申请日：2019-08-20

    Applicant: QUALCOMM INCORPORATED

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

    IPC: H04B17/318 ,  H04B17/336 ,  H04B17/12 ,  H04B17/382 ,  H04B7/06 ,  H04W52/24 ,  H04W52/14 ,  H04W52/42 ,  H01Q3/26

    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.

    AREA CALIBRATION AND BEAMFORMING REFINEMENT
    32.
    发明申请
    AREA CALIBRATION AND BEAMFORMING REFINEMENT 审中-公开

    公开(公告)号：WO2018203978A1

    公开(公告)日：2018-11-08

    申请号：PCT/US2018/023203

    申请日：2018-03-20

    Applicant: QUALCOMM INCORPORATED

    Inventor： LI, Junyi ,  SAMPATH, Ashwin ,  KOYMEN, Ozge

    IPC: H04B7/06 ,  H04B7/08 ,  H04W16/28 ,  H04B7/022

    Abstract: A wireless device of the present disclosure may be able to reduce the time needed to determine a subarray and/or beamforming direction used for mmW communication. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In one aspect, the apparatus may maintain first information associated with a correlation between each of a plurality of wireless device positions and wireless device orientations and a plurality of nodes, at least one subarray, and a corresponding beamforming direction. In another aspect, the apparatus may transmit the first information associated with the correlation to a plurality of nodes.

    PREDICTIVE BEAMFORMING AND SUBARRAY SELECTION
    33.
    发明申请
    PREDICTIVE BEAMFORMING AND SUBARRAY SELECTION 审中-公开

    公开(公告)号：WO2018203977A1

    公开(公告)日：2018-11-08

    申请号：PCT/US2018/023202

    申请日：2018-03-20

    Applicant: QUALCOMM INCORPORATED

    Inventor： LI, Junyi ,  SAMPATH, Ashwin ,  KOYMEN, Ozge

    IPC: H04B7/0408

    Abstract: A wireless device of the present disclosure may be able to reduce the time needed to determine a subarray and/or beamforming direction used for mmW communication. An apparatus may maintain first information associated with a correlation between each of a plurality of wireless device orientations and a plurality of nodes, at least one subarray, and a corresponding beamforming direction. The apparatus may communicate with a first node using a first beamforming direction selected from the first information. In certain aspects, the first beamforming direction may be correlated with a first orientation of a first subarray at the wireless device and the first node. The apparatus may perform a handoff procedure from the first node to a second node when a position of the first subarray changes from the first orientation to a second orientation.

    REPORTING POWER LIMIT AND CORRESPONDING CONSTRAINT
    34.
    发明申请
    REPORTING POWER LIMIT AND CORRESPONDING CONSTRAINT 审中-公开

    公开(公告)号：WO2018111844A1

    公开(公告)日：2018-06-21

    申请号：PCT/US2017/065765

    申请日：2017-12-12

    Applicant: QUALCOMM INCORPORATED

    Inventor： SAMPATH, Ashwin ,  PARTYKA, Andrzej ,  BURKE, Joseph ,  KOYMEN, Ozge ,  CHALLA, Raghu

    IPC: H04W52/36

    Abstract: Various aspects of the disclosure relate to reporting a power limit along with an indication of at least one constraint upon which the power limit is based. In some aspects, the constraint is a radio frequency (RF) exposure constraint. For example, a power headroom limit calculated by a first apparatus may be constrained by a specific absorption rate (SAR) limit or a maximum permissible exposure (MPE) limit. The first apparatus may thus report to a second apparatus the current power headroom limit of the first apparatus along with an indication of whether the power headroom limit is constrained by an SAR limit or an MPE limit (e.g., as opposed to being constrained by a maximum transmit power limit). The second apparatus may then schedule the first apparatus taking into account the power headroom limit and the corresponding constraint (e.g., maximum power or SAR/MPE).

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