公开(公告)号：US11265061B2

公开(公告)日：2022-03-01

申请号：US16727364

申请日：2019-12-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jinsong Lv ,  Mo Chen ,  Wei Wang ,  Zhiwei Zhang ,  Lie Zhang

IPC: H04L12/50 ,  H04B7/06 ,  H04L27/36

Abstract: The present disclosure relates to correction apparatus and correction methods. One example correction apparatus includes a first adjustment module, a plurality of second adjustment modules, a correction calculation module, and a plurality of non-ideal channels. One second adjustment module is disposed on one non-ideal channel. The first adjustment module is connected to each non-ideal channel. The correction calculation module is separately connected to the first adjustment module and the plurality of second adjustment modules. The correction calculation module is connected to an output end of each non-ideal channel. The non-ideal channel is a channel that outputs an output signal in response to a drive signal having an error value.

公开(公告)号：US10237002B2

公开(公告)日：2019-03-19

申请号：US16009571

申请日：2018-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lie Zhang ,  Jianxiong Bai ,  Meifeng Li ,  Qiang Li

IPC: H04B17/00 ,  H04B1/26 ,  H04B17/21 ,  H04L25/03 ,  H04B1/00

Abstract: A method for determining a calibration parameter of a zero intermediate frequency radio receiver, and a zero intermediate frequency radio receiver are provided. The method includes: obtaining a plurality of sub-band training signals, where a sum of the plurality of sub-band training signals is a fullband training signal; determining a sub-band calibration parameter corresponding to each of the plurality of sub-band training signals; determining a fullband calibration signal according to the plurality of sub-band training signals and the sub-band calibration parameter corresponding to each of the plurality of sub-band training signals; and performing coefficient fitting on the fullband training signal and the fullband calibration signal, to determine a fullband calibration parameter. Because sub-band calibration parameters are obtained according to a plurality of different sub-band training signals, aliasing between an image signal and a training signal is reduced. Therefore, a speed and precision of determining a calibration parameter can be improved.