公开(公告)号：US10320090B2

公开(公告)日：2019-06-11

申请号：US15270668

申请日：2016-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Keli Zou ,  Tianxiang Wang ,  Hua Cai

IPC: H01Q1/38 ,  H01Q21/00 ,  H01Q21/06

Abstract: An array antenna is provided. The array antenna includes at least one pair of interleaved TR antenna arrays in a continuous arraying direction, where the TX arrays and RX arrays of two adjacent TR antenna arrays are interleaved. This can effectively rectify discontinuousness of TX arrays and RX arrays in a discontinuous arraying direction in the prior art, and thereby reduce grating lobes or side lobes caused by discontinuous TX arrays and discontinuous RX arrays in an array antenna, so that performance of the array antenna improves.

公开(公告)号：US20180167096A1

公开(公告)日：2018-06-14

申请号：US15891932

申请日：2018-02-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guolong Huang ,  Hua Cai ,  Yi Wang

IPC: H04B1/16 ,  H04B1/00

CPC classification number: H04B1/16 ,  H04B1/00 ,  H04B1/0053

Abstract: The present application discloses a signal processing apparatus and method, the method includes: receive an analog signal; adjust a frequency band of the analog signal to a lowest frequency band when a frequency band of the analog signal received by the receiving unit falls outside the lowest frequency band in multiple preconfigured frequency bands; process, by using a signal processing channel in the lowest frequency band, the analog signal whose frequency band has been adjusted to the lowest frequency band. The method provided in the embodiments of the present application processes signals of different frequency bands by using a processing channel in a lowest frequency band. In this way, only a relatively small quantity of radio-frequency link components are required to implement processing of the signals of the different frequency bands, which reduces a link size of a communications system.

公开(公告)号：US09967116B2

公开(公告)日：2018-05-08

申请号：US15416800

申请日：2017-01-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo Yang ,  Hua Cai

IPC: H04L25/14 ,  H04W24/02 ,  H04L25/49 ,  H04L7/033

CPC classification number: H04L25/14 ,  H04B1/00 ,  H04B1/006 ,  H04B1/28 ,  H04L7/033 ,  H04L25/49 ,  H04W24/02 ,  H04W88/00

Abstract: A transceiver includes: a baseband control apparatus (21); an up-conversion apparatus (22), connected to the baseband control apparatus (21), and configured to perform up-conversion on a baseband signal generated by the baseband control apparatus (21), to obtain an intermediate frequency signal; at least two radio frequency channels (23) disposed in parallel, connected to the up-conversion apparatus (22), and configured to perform frequency conversion, amplification, and filtering on the intermediate frequency signal, to obtain a radio frequency signal corresponding to the frequency band covered by the each radio frequency channel; and an antenna (24), connected in series with an output end of any radio frequency channel of the at least two radio frequency channels (23), and configured to transmit the radio frequency signal obtained by the radio frequency channel. The transceiver enables relatively high wireless communication performance when an ultra wide bandwidth is implemented.

公开(公告)号：US09420545B2

公开(公告)日：2016-08-16

申请号：US14499698

申请日：2014-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hua Cai ,  Shujuan Lv ,  Jianyou Lin ,  Nianwei Cao

IPC: H04B1/00 ,  H04B17/00 ,  H04B7/00 ,  H04W52/22 ,  H04W52/14 ,  H04W52/16 ,  H04W52/26 ,  H04W24/08 ,  H04W52/28 ,  H04W52/32

CPC classification number: H04W52/228 ,  H04W24/08 ,  H04W52/143 ,  H04W52/16 ,  H04W52/267 ,  H04W52/287 ,  H04W52/325

Abstract: The present invention discloses a power control method, a power control system and a related device. The method includes: monitoring a downlink data sending condition of a dedicated physical data channel (DPDCH), and if no downlink data is sent on the DPDCH, determining to decrease downlink transmit power of a DPCH, or if downlink data is sent on the DPDCH, determining to increase or maintain downlink transmit power of a DPCH. The present invention can reduce the downlink transmit power of the DPCH and promote experience of other users on a precondition of ensuring system performance.

Abstract translation: 本发明公开了一种功率控制方法，功率控制系统及相关装置。 该方法包括：监视专用物理数据信道（DPDCH）的下行链路数据发送条件，并且如果在DPDCH上没有发送下行链路数据，则确定降低DPCH的下行链路发送功率，或者如果在DPDCH上发送下行链路数据 确定增加或维持DPCH的下行链路发射功率。 本发明可以在确保系统性能的前提下，降低DPCH的下行链路传输功率，提升其他用户的体验。

公开(公告)号：US08947151B2

公开(公告)日：2015-02-03

申请号：US14043116

申请日：2013-10-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hua Cai ,  Songlin Shuai ,  Jia He ,  Yong Zhang

IPC: G06G7/12 ,  H03D7/14 ,  H03D7/00 ,  H03D7/18 ,  H04B1/30

CPC classification number: H03D7/1491 ,  H03D7/00 ,  H03D7/18 ,  H03D2200/0045 ,  H03D2200/009 ,  H04B1/30

Abstract: Embodiments of the present invention disclose a frequency mixing circuit and a method for suppressing local oscillation leakage in the frequency mixing circuit, where a mixed input signal and a local oscillation signal are involved, and local oscillation leakage can be effectively reduced by using a frequency mixing circuit whose structure is simpler and is easier to be implemented. The frequency mixing circuit includes a direct current bias circuit, where the direct current bias circuit includes a direct current bias voltage source used for reducing a local oscillation current. The frequency mixing circuit is mainly applied to frequency mixing, and especially to a case where an intermediate frequency signal is mixed with a local oscillation signal to output a radio frequency signal.

Abstract translation: 本发明的实施例公开了一种混频电路和一种用于抑制混频电路中局部振荡泄漏的方法，其中涉及混合输入信号和本地振荡信号，并且可以通过使用频率混频来有效地降低局部振荡泄漏 电路的结构更简单，更易于实现。 该混频电路包括直流偏置电路，其中直流偏置电路包括用于减小局部振荡电流的直流偏置电压源。 混频电路主要应用于混频，尤其适用于将中频信号与本地振荡信号混合以输出射频信号的情况。

公开(公告)号：US20130121440A1

公开(公告)日：2013-05-16

申请号：US13731723

申请日：2012-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hua Cai ,  Yanzhao Pang ,  Wei Wang ,  Wei Xue

IPC: H04L25/03

CPC classification number: H04L25/03343 ,  H03F1/3247 ,  H04L27/368

Abstract: An apparatus for implementing digital baseband predistortion includes a transmission channel including a digital-to-analog converter, a modulator, an amplifier and a power amplifier, and further includes a feedback channel analog part including a diode detector, a filter and an analog-to-digital converter, and a feedback channel digital part including a predistorter, a mode obtaining unit, a predistortion coefficient generator and a feedback correcting unit. The diode detector is configured to obtain an envelope of an output signal of the power amplifier. Embodiments of the present invention further provide a method for implementing digital baseband predistortion by applying the foregoing single-chip. Due to a simple structure of the diode detector, not only the number of radio frequency devices on the feedback channel is reduced, implementation complexity of hardware is lowered, power consumption is reduced, but also a feedback channel analog part may be integrated onto the single-chip.

Abstract translation: 用于实现数字基带预失真的装置包括包括数模转换器，调制器，放大器和功率放大器的传输通道，还包括反馈通道模拟部分，其包括二极管检测器，滤波器和模数转换器 数字转换器，以及包括预失真器，模式获取单元，预失真系数发生器和反馈校正单元的反馈通道数字部分。 二极管检测器被配置为获得功率放大器的输出信号的包络。 本发明的实施例还提供了一种通过应用前述单芯片实现数字基带预失真的方法。 由于二极管检测器的结构简单，不仅反馈通道上的射频器件数量减少，降低了硬件的实现复杂度，降低了功耗，而且可以将反馈通道模拟部件集成到单个 -芯片。

公开(公告)号：US20240322424A1

公开(公告)日：2024-09-26

申请号：US18679423

申请日：2024-05-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Congsong Shen ,  Guolong Huang ,  Hua Cai

IPC: H01Q3/24 ,  H01Q9/04

CPC classification number: H01Q3/24 ,  H01Q9/0407

Abstract: An antenna includes a first and second radiation units coupled with each other. The first radiation unit includes a first switch circuit connected to a feed network. When the first switch circuit is on, a current direction of the first radiation unit is a first direction; or when the first switch circuit is off, a current direction of the first radiation unit is a second direction. The second radiation unit includes a second switch circuit. When the second switch circuit is on, a resonance frequency of the second radiation unit is a first frequency, and a beam direction of the second radiation unit is a third direction; or when the second switch circuit is off, a resonance frequency of the second radiation unit is a second frequency, and a beam direction of the second radiation unit is a fourth direction.

公开(公告)号：US20240196268A1

公开(公告)日：2024-06-13

申请号：US18412574

申请日：2024-01-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bo Xu ,  Zhiqiang Zou ,  Hua Cai

IPC: H04W28/06

CPC classification number: H04W28/06

Abstract: Embodiments of this application provide a data compression method, a data decompression method, and a communication apparatus. The communication apparatus may be a baseband unit (BBU), a remote radio unit (RRU), or the like. The method may be used for data compression and decompression. During data compression, the communication apparatus may obtain first data based on N pieces of original data, an amount K of combined data, and a data bit width L of the combined data, where the first data is data obtained by compressing the original data, a data bit width corresponding to the first data is β, β is a non-integer greater than 0, and N, K, and L are positive integers; then determine the combined data based on β and the first data; and output the combined data.

公开(公告)号：US20170149588A1

公开(公告)日：2017-05-25

申请号：US15416800

申请日：2017-01-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo Yang ,  Hua Cai

IPC: H04L25/14 ,  H04L25/49 ,  H04L7/033 ,  H04W24/02

CPC classification number: H04L25/14 ,  H04B1/00 ,  H04B1/006 ,  H04B1/28 ,  H04L7/033 ,  H04L25/49 ,  H04W24/02 ,  H04W88/00

Abstract: A transceiver includes: a baseband control apparatus (21); an up-conversion apparatus (22), connected to the baseband control apparatus (21), and configured to perform up-conversion on a baseband signal generated by the baseband control apparatus (21), to obtain an intermediate frequency signal; at least two radio frequency channels (23) disposed in parallel, connected to the up-conversion apparatus (22), and configured to perform frequency conversion, amplification, and filtering on the intermediate frequency signal, to obtain a radio frequency signal corresponding to the frequency band covered by the each radio frequency channel; and an antenna (24), connected in series with an output end of any radio frequency channel of the at least two radio frequency channels (23), and configured to transmit the radio frequency signal obtained by the radio frequency channel. The transceiver enables relatively high wireless communication performance when an ultra wide bandwidth is implemented.

公开(公告)号：US20170077611A1

公开(公告)日：2017-03-16

申请号：US15343912

申请日：2016-11-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiongfei Zou ,  Hua Cai ,  Jie Cao

IPC: H01Q21/22 ,  H01Q3/26

CPC classification number: H01Q21/22 ,  H01Q3/26 ,  H01Q3/267 ,  H01Q3/28 ,  H01Q3/30

Abstract: The present invention relates to the communications field, and provides a phased array calibration method and a phased array calibration circuit. The phased array calibration circuit includes a signal obtaining module, a selector, a phase difference module, and a main signal module. The selector is configured to switch on the signal obtaining module and the main signal module; the signal obtaining module is configured to obtain a first signal according to an initial signal after the selector switches on the signal obtaining module and the main signal module; the selector is further configured to switch on the phase difference module, the signal obtaining module, and the main signal module; and the signal obtaining module is further configured to obtain a second signal according to the initial signal after the selector switches on the phase difference module, the signal obtaining module, and the main signal obtaining module.

Abstract translation: 本发明涉及通信领域，并且提供了相控阵校准方法和相控阵校准电路。 相控阵校准电路包括信号获取模块，选择器，相位差模块和主信号模块。 选择器配置为打开信号获取模块和主信号模块; 信号获取模块被配置为在选择器接通信号获取模块和主信号模块之后根据初始信号获得第一信号; 所述选择器还被配置为接通所述相位差模块，所述信号获取模块和所述主信号模块; 所述信号获取模块还被配置为在所述选择器接通所述相位差模块，所述信号获取模块和所述主信号获取模块之后根据所述初始信号获得第二信号。