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    POWER ALLOCATION AND PRECODING MATRIX COMPUTATION METHOD IN A WIRELESS COMMUNICATION SYSTEM
    3.
    发明申请
    POWER ALLOCATION AND PRECODING MATRIX COMPUTATION METHOD IN A WIRELESS COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20180139703A1

    公开(公告)日：2018-05-17

    申请号：US15576709

    申请日：2016-06-28

    申请人： Dengkui Zhu ,  Boyu Li ,  Ping Liang

    发明人： Dengkui Zhu ,  Boyu Li ,  Ping Liang

    IPC分类号： H04W52/24 ,  H04W72/04 ,  H04B7/0452 ,  H04W52/34

    摘要： This invention presents methods for power allocation for each data stream on each transmitting antennas in MU-MIMO wireless communication systems comprising the BS computing the temporary beamforming matrix, constructing special matrices and vectors with the maximum transmitting power on each antenna, the allocated power to each data stream, the channel quality of each data stream, and the amplitude of each element of the temporary beamforming matrix, calculating the power allocated to each data stream on each antenna with the calculated special matrices and vectors, and adjusting each element of the temporary beamforming matrix to obtain the final beamforming matrix.

    HYBRID BEAMFORMING METHOD FOR WIRELESS MULTI-ANTENNA AND FREQUENCY-DIVISION DUPLEX SYSTEMS
    4.
    发明申请
    HYBRID BEAMFORMING METHOD FOR WIRELESS MULTI-ANTENNA AND FREQUENCY-DIVISION DUPLEX SYSTEMS 有权

    公开(公告)号：US20220060232A1

    公开(公告)日：2022-02-24

    申请号：US17453833

    申请日：2021-11-05

    申请人： Dengkui Zhu ,  Boyu Li ,  Ping Liang

    发明人： Dengkui Zhu ,  Boyu Li ,  Ping Liang

    IPC分类号： H04B7/06 ,  H04W16/28 ,  H04B7/0452 ,  H04W88/10

    摘要： This invention presents a method and systems for beamforming in wireless communication comprising a base station with a plural of antennas and radio frequency transmitting and receiving chains, a plural of base band transmitting paths and base band receiving paths, and a processor that constructs a subspace for each user equipment using the principal angle information contained in partial channel state information obtained on channels associated with a part of the BS antennas, derives an analog beamforming matrix and/or an analog combining matrix from the subspaces of all the user equipment selected for communication with the base station to achieve analog beamforming, and further performs beamforming at the base band.

    Wideband subcarrier wireless transceiver circuits and systems
    5.
    发明授权
    Wideband subcarrier wireless transceiver circuits and systems 有权

    公开(公告)号：US10708012B1

    公开(公告)日：2020-07-07

    申请号：US16271808

    申请日：2019-02-09

    申请人： Jason Brent ,  Dengkui Zhu ,  Ping Liang

    发明人： Jason Brent ,  Dengkui Zhu ,  Ping Liang

    IPC分类号： H04L27/26 ,  H04J11/00 ,  H04B7/024 ,  H04L5/00 ,  H04W72/04

    摘要： This invention discloses methods and circuits of wideband wireless transmitting and/or receiving by combining multiple RF transmitters and/or receivers, or multiple transceivers, each of which has a narrower bandwidth, e.g., producing a RF transmitter and receiver or a RF transceiver whose signal bandwidth is the sum or approximately the sum, e.g., slightly less than the sum, of the signal bandwidth of the multiple RF transmitters and/or receivers, or multiple RF transceivers. The embodiments apply in wireless communication systems with orthogonal or approximately orthogonal subcarrier type of modulation (OSM), e.g., Orthogonal Frequency Division Multiplexing (OFDM).