公开(公告)号：US20130040652A1

公开(公告)日：2013-02-14

申请号：US13652845

申请日：2012-10-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yong JIANG ,  Yi Wang

IPC: H04W72/04

CPC classification number: H04J11/0023 ,  H04L27/2624

Abstract: A method and an apparatus for generating a standard cancellation signal includes: setting weight values according to frequency points of a current cell and its neighboring cells; according to the frequency points of the current cell and neighboring cells and the weight values of the frequency points, performing Fourier transform to obtain a corresponding time-domain signal; and performing highest amplitude normalization on the time-domain signal and performing a cyclic shift to obtain a standard cancellation signal. The embodiments generate a standard cancellation signal according to frequency points of the current cell and its neighboring cells, so that the current cell and its neighboring cells share the peak clipping noise, and therefore helping improve the peak clipping performance of the current cell or reduce the EVM distortion.

Abstract translation: 用于产生标准消除信号的方法和装置包括：根据当前小区及其相邻小区的频点设置权重值; 根据当前小区和相邻小区的频点和频点的权重值，进行傅里叶变换以获得对应的时域信号; 对时域信号进行最高幅度归一化，进行循环移位，得到标准消除信号。 实施例根据当前单元及其相邻单元的频点产生标准消除信号，使得当前单元及其相邻单元共享峰值限幅噪声，因此有助于提高当前单元的峰值削波性能或减小 EVM失真。

公开(公告)号：US20190229760A1

公开(公告)日：2019-07-25

申请号：US16369336

申请日：2019-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yong JIANG ,  Jia Lv ,  Yuxiang Xiao

IPC: H04B1/12 ,  H04L27/26 ,  H04W88/14 ,  H04W88/08 ,  H04B1/04

Abstract: A passive intermodulation elimination method, an apparatus, and a base station are disclosed. The method includes: receiving, by a network device, N pieces of backhauled information, where one piece of the backhauled information includes initial phase information of each carrier on one transmit channel, and N is an integer greater than or equal to 1; and eliminating, by the network device, a PIM of a received signal on a receive channel on the network device based on the N pieces of backhauled information.