公开(公告)号：US20200373950A1

公开(公告)日：2020-11-26

申请号：US16991725

申请日：2020-08-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meng CAI ,  Kun LI

IPC: H04B1/04 ,  H03F1/32

Abstract: This application provides a power adjustment method and apparatus. The method includes obtaining a to-be-output signal, performing first automatic gain control (AGC) processing on the to-be-output signal to obtain the to-be-output signal on which the first AGC processing is performed, and to obtain a gain value of the to-be-output signal. The method also includes performing digital pre-distortion (DPD) processing on the to-be-output signal on which the first AGC processing is performed, to obtain the to-be-output signal on which the DPD processing is performed. The method further includes calculating an output power back-off (OBO) value based on the gain value, adjusting, based on the OBO value, output power of the to-be-output signal on which the DPD processing is performed, and sending, to a signal receive end, the to-be-output signal on which the power adjustment is performed.

公开(公告)号：US20220278451A1

公开(公告)日：2022-09-01

申请号：US17746704

申请日：2022-05-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ling ZENG ,  Ning YANG ,  Mingde DU ,  Ke SUN ,  Meng CAI

IPC: H01Q3/46 ,  H01Q1/42 ,  H01Q15/02

Abstract: This application discloses example beam direction adjustment methods, apparatuses, and media. One example method includes obtaining at least one of an azimuth or a pitch angle of a microwave antenna in an antenna system, where the antenna system includes the microwave antenna and a radome installed at an air interface of the microwave antenna, the radome includes a liquid crystal array including M×N liquid crystal cells, and both M and N are integers greater than 0. A target scanning angle of the microwave antenna is determined based on at least one of the azimuth or the pitch angle. A first bias voltage value of the liquid crystal array is determined based on the target scanning angle. A voltage of the liquid crystal array is set to the first bias voltage value.

公开(公告)号：US20170019274A1

公开(公告)日：2017-01-19

申请号：US15280046

申请日：2016-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yu LIU ,  Cheng HONG ,  Meng CAI ,  Hongli Jiang

IPC: H04L25/03 ,  H04L5/00 ,  H04B7/04 ,  H04L25/08 ,  H04B1/04

CPC classification number: H04L25/03 ,  H04B1/0475 ,  H04B7/0469 ,  H04L5/0048 ,  H04L5/04 ,  H04L25/08

Abstract: The present invention provides a method. The method includes: performing coupling to acquire a first reference signal and a second reference signal from a transmit signal transmitted on a same transmit link at a transmit end; performing signal recombination according to the first reference signal and the second reference signal, to obtain a first interference cancellation signal and a second interference cancellation signal; enabling the first interference cancellation signal to pass through a simulated interference channel, and enabling the second interference cancellation signal to pass through the simulated interference channel; and coupling and output, to a same receive link at the local receive end, the first interference cancellation signal and the second interference cancellation signal that have passed through the simulated interference channel, and combining the first interference cancellation signal and the second interference cancellation signal with a signal received by the local receive end.

Abstract translation: 本发明提供一种方法。 该方法包括：执行耦合以从发射端在相同发射链路上传输的发射信号获取第一参考信号和第二参考信号; 根据第一参考信号和第二参考信号执行信号复合，以获得第一干扰消除信号和第二干扰消除信号; 使得所述第一干扰消除信号能够通过模拟干扰信道，并且使得所述第二干扰消除信号能够通过所述模拟干扰信道; 并且耦合并输出到本地接收端的相同接收链路，已经通过模拟干扰信道的第一干扰消除信号和第二干扰消除信号，并将第一干扰消除信号和第二干扰消除信号与 由本地接收端接收到的信号。

公开(公告)号：US20160380659A1

公开(公告)日：2016-12-29

申请号：US15261289

申请日：2016-09-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meng CAI ,  Kun LI ,  Hongli JIANG ,  Yu LIU

IPC: H04B1/10 ,  H04L5/00 ,  H04B1/76 ,  H04J11/00

CPC classification number: H04B1/1027 ,  H04B1/76 ,  H04B7/04 ,  H04J11/004 ,  H04J11/005 ,  H04L5/0073

Abstract: A signal processing method and apparatus are disclosed. The signal processing method includes: receiving, by a first signal processing apparatus, a mixed signal; acquiring, by the first signal processing apparatus, an energy strength ratio of the mixed signal, where the energy strength ratio includes a ratio of energy strength of a signal sent by a first signal source and received by the first signal processing apparatus to energy strength of a signal sent by a second signal source and received by the first signal processing apparatus; and if the energy strength ratio is less than a first preset threshold, using, by the first signal processing apparatus, the signal sent by the second signal source in the mixed signal as an interference signal and separating the interference signal, and determining that a mixed signal obtained after the separation processing is the desired signal sent by the first signal source.

Abstract translation: 公开了一种信号处理方法和装置。 信号处理方法包括：由第一信号处理装置接收混合信号; 由第一信号处理装置获取混合信号的能量强度比，其中能量强度比包括由第一信号源发送并由第一信号处理装置接收的信号的能量强度与能量强度之比 由第二信号源发送并由第一信号处理装置接收的信号; 并且如果所述能量强度比小于第一预设阈值，则由所述第一信号处理装置使用由所述混合信号中的所述第二信号源发送的信号作为干扰信号并分离所述干扰信号，并且确定混合 在分离处理之后获得的信号是由第一信号源发送的期望信号。

公开(公告)号：US20140177757A1

公开(公告)日：2014-06-26

申请号：US14192233

申请日：2014-02-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meng CAI ,  Kun Li

IPC: H04B7/04 ,  H04L27/18

CPC classification number: H04B7/0413 ,  H04B7/0697 ,  H04L27/18

Abstract: A method, device and system for implementing microwave multiple-input multiple-output, relate to the field of wireless communications. The device includes a transmit channel correction module including a transmission energy distributor and a transmission coupler; the transmission energy distributor decomposes, according to a first energy distribution parameter, each channel of transmitted signals among N channels of transmitted signals into channels of transmitted sub-signals, where the number of the channels of transmitted sub-signals is the same as the number of transmit antennas, the number of transmit antennas is N, and N is a natural number greater than 1; and the transmission coupler performs phase processing on each channel of transmitted sub-signals according to a first phase parameter, selects one channel of phase-processed transmitted sub-signals from each of the N channels of transmitted signals, and combines them to obtain N channels of output signals.

Abstract translation: 实现微波多输入多输出的方法，装置和系统涉及无线通信领域。 该装置包括：发射信道校正模块，包括传输能量分配器和传输耦合器; 传输能量分配器根据第一能量分布参数将发射信号的N个信道中的每个信道的信道分解为所发送的子信号的信道，其中所发送的子信号的信道的数量与数字 发射天线的数量为N，N为大于1的自然数; 并且发送耦合器根据第一相位参数对发送的子信号的每个信道执行相位处理，从发送信号的N个信道中的每一个中选择相位处理的发送子信号的一个信道，并将它们组合以获得N个信道 的输出信号。

公开(公告)号：US20210258816A1

公开(公告)日：2021-08-19

申请号：US17313531

申请日：2021-05-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meng CAI ,  Kun LI ,  Jiantao MA ,  Ping CAO ,  Hongli JIANG

IPC: H04W24/10 ,  H04B17/336 ,  H04L5/00

Abstract: A method includes: A first device sends a first signal to a second device, where the first signal includes a first transmit signal and a first pilot signal; the first device obtains a second signal, where the second signal includes a first self-interference signal, a second pilot signal, and a second receive signal from the second device; the first device extracts jitter information of the first self-interference signal based on the first pilot signal and the second pilot signal; the first device reconstructs a self-interference signal based on the first transmit signal and the jitter information of the first self-interference signal, to obtain a cancellation signal of the first self-interference signal; and the first device cancels the first self-interference signal from the second receive signal based on the cancellation signal of the first self-interference signal.