公开(公告)号：US20150349992A1

公开(公告)日：2015-12-03

申请号：US14730008

申请日：2015-06-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peng GAO ,  Nianyong ZHU ,  Jian LIANG

IPC: H04L27/152 ,  H04L7/033 ,  H04B17/21 ,  H04B1/16

CPC classification number: H04L27/152 ,  H03L7/18 ,  H04B1/16 ,  H04B17/14 ,  H04B17/21 ,  H04L7/0331

Abstract: The present invention provides a phase-locked loop frequency calibration method and system, where the method includes: performing, within a counting time TCNT[k], frequency counting on a frequency signal that is output in a current working subband by a voltage-controlled oscillator, to obtain a frequency count value FCNT[k], where the current working subband corresponds to a binary value of a current node in a binary search tree; and calculating an error between FCNT[k] and a target frequency count value FCNTTARGET[k], comparing an absolute value of the error with a predetermined value, dynamically adjusting TCNT[k] in a value range of TCNT[k] according to a comparison result, and determining, in combination with a binary search algorithm, a target subband in which the voltage-controlled oscillator works. Such a dynamic calibration method can effectively shorten the calibration time on the whole.

Abstract translation: 本发明提供了一种锁相环频率校准方法和系统，其中该方法包括：在计数时间TCNT [k]内，对通过电压控制的当前工作子带中输出的频率信号进行频率计数 振荡器，以获得频率计数值FCNT [k]，其中当前工作子带对应于二叉搜索树中当前节点的二进制值; 并计算FCNT [k]与目标频率计数值FCNTTARGET [k]之间的误差，将误差的绝对值与预定值进行比较，根据TCNT [k]在TCNT [k]的值范围内动态调整TCNT [k] 比较结果，并结合二进制搜索算法确定压控振荡器工作的目标子带。 这种动态校准方法可以有效地缩短整个校准时间。

公开(公告)号：US20250141478A1

公开(公告)日：2025-05-01

申请号：US19004761

申请日：2024-12-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian LIANG ,  Nianyong ZHU ,  Xiaobao YU ,  Bing WANG

IPC: H04B1/04 ,  H04L5/00

Abstract: This application provides a radio frequency circuit and a communication device. In one example, a radio frequency circuit includes a frequency mixer and the phase processing circuit coupled to the frequency mixer. The phase processing circuit is configured to receive the orthogonal baseband signal, and generate the multi-phase signal based on the orthogonal baseband signal, where the multi-phase signal includes m analog signals, a phase difference between any two of the analog signals having adjacent phases is fixed, and m is a positive integer greater than or equal to 3.

公开(公告)号：US20140375523A1

公开(公告)日：2014-12-25

申请号：US14310603

申请日：2014-06-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weinan LI ,  Tao LIU ,  Jian LIANG

IPC: H03H7/38 ,  H01Q1/50

CPC classification number: H03H7/383 ,  H01Q1/242 ,  H01Q1/50 ,  H03H7/38 ,  H03H2007/386

Abstract: The present invention provides an antenna impedance matching apparatus, semiconductor chip, and method. The apparatus includes: a semiconductor chip, including multiple adjustable capacitors and multiple switches; and at least one impedance component, located outside the semiconductor chip, where the semiconductor chip is coupled to the at least one impedance component through multiple terminals and coupled to an input terminal and an output terminal of the antenna impedance matching apparatus, the input terminal and the output terminal of the antenna impedance matching apparatus are respectively coupled to a radio frequency circuit and an antenna, the multiple switches are configured to, under control of a control signal, switch a connection between the multiple adjustable capacitors and the at least one impedance component, and values of the multiple adjustable capacitors are adjusted by an adjustment signal, so as to tune impedance matching of the antenna.

Abstract translation: 本发明提供一种天线阻抗匹配装置，半导体芯片和方法。 该装置包括：半导体芯片，包括多个可调电容器和多个开关; 以及位于半导体芯片外部的至少一个阻抗分量，其中所述半导体芯片通过多个端子耦合到所述至少一个阻抗分量，并耦合到所述天线阻抗匹配装置的输入端子和输出端子，所述输入端子和 天线阻抗匹配装置的输出端分别耦合到射频电路和天线，多个开关被配置为在控制信号的控制下切换多个可调电容器与至少一个阻抗分量之间的连接 ，并且通过调整信号调整多个可调电容器的值，以便调整天线的阻抗匹配。

公开(公告)号：US20200244341A1

公开(公告)日：2020-07-30

申请号：US16845332

申请日：2020-04-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weinan LI ,  Xiaoran LI ,  Jian LIANG

IPC: H04B7/08 ,  H04B1/525 ,  H04B1/10

Abstract: The present application discloses a diversity receiver and a terminal. The diversity receiver includes a first main channel and a first diversity channel, the first main channel includes an antenna diplexer and a first main transmission channel, and the first diversity channel includes a tunable bandpass filter and a first diversity receiving channel. The first diversity receiving channel is coupled to a diversity antenna by using the tunable bandpass filter, and the tunable bandpass filter is configured to: adjust a passband bandwidth of the tunable bandpass filter according to a band bandwidth of a first transmit signal generated by the first main transmission channel and a band bandwidth of a first receive signal received from the diversity antenna, and perform bandpass filtering based on the passband bandwidth on the first receive signal.

公开(公告)号：US20160043822A1

公开(公告)日：2016-02-11

申请号：US14821464

申请日：2015-08-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min YI ,  Jian LIANG ,  Nianyong ZHU

IPC: H04J1/12 ,  H04B1/12

CPC classification number: H04J1/12 ,  H04B1/0057 ,  H04B1/006 ,  H04B1/126 ,  H04W88/06

Abstract: The present invention discloses a radio frequency receiver and a receiving method, where the method includes: performing band splitting on a radio frequency signal of multiple carriers to obtain at least one band signal, and outputting the signal; separately performing filtering and amplification processing on the at least one band signal to obtain at least one processed signal; generating multiple oscillation signals; and selectively receiving a processed signal, of the at least one processed signal, that includes a target carrier; receiving an oscillation signal corresponding to the target carrier; selectively selecting a frequency division ratio from multiple frequency division ratios; using the frequency division ratio to perform frequency division on the received oscillation signal to obtain a local oscillator signal; using the local oscillator signal to perform frequency mixing on the received processed signal that includes the target carrier to obtain a mixed signal.

Abstract translation: 本发明公开了一种射频接收机和接收方法，其特征在于，该方法包括：对多个载波的射频信号进行频带分割，得到至少一个频带信号，输出该信号; 对所述至少一个频带信号分别执行滤波和放大处理以获得至少一个处理的信号; 产生多个振荡信号; 以及选择性地接收包括目标载体的所述至少一个已处理信号的已处理信号; 接收对应于目标载波的振荡信号; 从多个分频比选择选择分频比; 使用分频比对接收到的振荡信号进行分频以获得本地振荡器信号; 使用本地振荡器信号对包含目标载波的接收到的处理信号进行混频以获得混合信号。