Methods and apparatus for codebook switching with dynamic coverage in a communication system

    公开(公告)号:US11363469B2

    公开(公告)日:2022-06-14

    申请号:US16532579

    申请日:2019-08-06

    Abstract: Methods, systems, and devices for wireless communications are described. One method may inlcude a base station or other device estimating an intended coverage area of all possible communication devices that are to be serviced by the base station or other device. The base station or other device may dynamically optimize at least one transmission metric such as a codebook, in response to a change in the coverage area. Another method may include a base station estimating a dynamic coverage area of a set of all possible user equipments or devices to be serviced, and dynamically optimizing a codebook structure in response to a change in the coverage area. Another method may include the base station determining a use-case of the set of all possible user equipments to be serviced by the base station, and hard-coding a metric corresponding to the use case.

    Mitigation of calibration errors
    92.
    发明授权

    公开(公告)号:US11166239B2

    公开(公告)日:2021-11-02

    申请号:US16783053

    申请日:2020-02-05

    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.

    COVERAGE EXPANSION AND INTERFERENCE OPERATING MODES FOR A REPEATER

    公开(公告)号:US20210194569A1

    公开(公告)日:2021-06-24

    申请号:US17124227

    申请日:2020-12-16

    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a repeater may receive a first signal from a transmitting device and determine an amplified version of the signal may not be successfully received by a receiving device. The repeater may transmit a mode switch message to the transmitting device to indicate a request for the transmitting device to switch to a transmission mode associated with one or more different transmission parameters based on detecting that the amplified version of the signal may not be received by the receiving device. The transmitting device may adjust one or more transmission parameters according to the mode switch message and may transmit a second signal to the repeater based on the adjusted transmission parameters. The repeater, operating according to the mode switch message, may receive the second signal and transmit an amplified version of the second signal to the receiving device.

    ANTENNA ARRAY RECONFIGURATION AT BOTH ENDS OF A MILLIMETER WAVE LINK

    公开(公告)号:US20210159946A1

    公开(公告)日:2021-05-27

    申请号:US16692916

    申请日:2019-11-22

    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a first device and a second device may communicate over a communication link using a set of antenna elements. The first device may identify one or more antenna array reconfiguration trigger conditions and may correspondingly select a first subset of antenna elements for operation. The first device may transmit a message to the second device including an indication of the antenna array reconfiguration at the first device, a request for the second device to modify the second device's antenna array configuration, or both. The second device may receive the message and, based on the indication or the request, may modify its antenna array configuration. For example, the second device may select a second subset of antenna elements based on the selected first subset of antenna elements. The devices may communicate using their modified antenna array configurations.

    CONFIGURABLE BEAMFORMING REPEATER
    97.
    发明申请

    公开(公告)号:US20200280127A1

    公开(公告)日:2020-09-03

    申请号:US16789349

    申请日:2020-02-12

    Abstract: Methods, systems, and devices for wireless communication are described. A wireless repeater beamforms a receive signal, at a first antenna array. The repeater retransmits, via a second antenna array, a beamformed signal. The repeater may adjust the receive and/or transmit beam in order to avoid signal interference caused by the retransmission. The repeater may monitor an output of a power amplifier (PA) in a signal processing chain and adjust a gain to a PA driver to the PA and/or a gain to one or more low noise amplifiers (LNAs) in the signal processing chain in order to improve or maintain transmission stability in the repeater.

    Area calibration and beamforming refinement

    公开(公告)号:US10341985B2

    公开(公告)日:2019-07-02

    申请号:US15925020

    申请日:2018-03-19

    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.

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