Channel sense method, network side device, and terminal

    公开(公告)号:US11109411B2

    公开(公告)日:2021-08-31

    申请号:US16692609

    申请日:2019-11-22

    Abstract: A channel sense method, a network side device, and a terminal includes determining, by a network side device, a first sense resource used by a terminal to perform channel sense, where the first sense resource is another resource other than a resource in a cell in which the terminal is located and that is used by each terminal to perform data transmission; and sending first sense indication information to the terminal, where the first sense indication information is used to indicate the first sense resource. When the terminal performs sense on the first sense resource, another terminal in a same cell does not receive or send data on the first sense resource. If the terminal senses an interference signal, it can be determined that the interference signal is not an interference signal generated when the other terminal in this cell performs data transmission.

    Signal transmission method and apparatus

    公开(公告)号:US10819555B2

    公开(公告)日:2020-10-27

    申请号:US16252200

    申请日:2019-01-18

    Inventor: Tao Wu Min Yan

    Abstract: A signal transmission method includes: combining a plurality of low-order modulated signals into N modulated signals; and transmitting the N modulated signals on N subcarriers, where the N subcarriers are subcarriers on frequency domain resources of M channels, an nth modulated signal in the N modulated signals is transmitted on an nth subcarrier in the N subcarriers, N is an integer greater than or equal to 2, M is an integer greater than or equal to 2, and n=1, 2, . . . , N. The signal transmission method can improve efficiency of a diversity gain.

    Channel Sense Method, Network Side Device, and Terminal

    公开(公告)号:US20200092911A1

    公开(公告)日:2020-03-19

    申请号:US16692609

    申请日:2019-11-22

    Abstract: A channel sense method, a network side device, and a terminal includes determining, by a network side device, a first sense resource used by a terminal to perform channel sense, where the first sense resource is another resource other than a resource in a cell in which the terminal is located and that is used by each terminal to perform data transmission; and sending first sense indication information to the terminal, where the first sense indication information is used to indicate the first sense resource. When the terminal performs sense on the first sense resource, another terminal in a same cell does not receive or send data on the first sense resource. If the terminal senses an interference signal, it can be determined that the interference signal is not an interference signal generated when the other terminal in this cell performs data transmission.

    Channel Estimation Method, Apparatus, and System

    公开(公告)号:US20180054329A1

    公开(公告)日:2018-02-22

    申请号:US15795577

    申请日:2017-10-27

    Inventor: Min Yan Xin Xue

    Abstract: A method includes receiving, by two receivers respectively, a first channel estimation sequence from a first transmitter and a second channel estimation sequence from a second transmitter, where the second channel estimation sequence is a sequence that is orthogonal to the first channel estimation sequence and an auto-correlation function is an impulse function when channels are estimated thereby signals obtained based on auto-correlation of the first channel estimation sequence and on auto-correlation of the second channel estimation sequence are impulse signals, and a convolution between the first channel estimation sequence and the second channel estimation sequence is 0.

    Method and Apparatus for Quadrature Signal Modulation

    公开(公告)号:US20180034678A1

    公开(公告)日:2018-02-01

    申请号:US15729309

    申请日:2017-10-10

    Abstract: Methods and apparatus for facilitating wireless communication using digital Quadrature Amplitude Modulation are disclosed. A mapping module electronic component of a wireless communication device utilizes a signal constellation for quadrature modulating a signal for transmission or quadrature demodulating a received signal. The signal constellation includes multiple constellation symbols and associated bit sequences. Specific signal constellations are disclosed. The signal constellations may be obtained through an optimization procedure which accounts for both phase noise and power amplifier nonlinearity.

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