公开(公告)号：US09887829B2

公开(公告)日：2018-02-06

申请号：US14983841

申请日：2015-12-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meng Cai ,  Huaping Qing ,  Yu Liu ,  Hongli Jiang ,  Qiao Liu

IPC: H04L5/14 ,  H04L7/00 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04L5/14 ,  H04L5/0048 ,  H04L7/0033 ,  H04L25/0226

Abstract: The present invention discloses an information processing method and apparatus, including: obtaining a local to-be-transmitted signal by using a local transmitter, and inserting first pilots and second pilots, where the first pilots are inserted from a first position of the local to-be-transmitted signal, the second pilots are inserted from a second position of the local to-be-transmitted signal; obtaining a local transmit signal; obtaining a peer transmit signal, where the peer transmit signal is sent after third pilots and fourth pilots are inserted, the third pilots are inserted from a third position of the peer transmit signal, the fourth pilots are inserted from a fourth position of the peer transmit signal, the first pilot is orthogonal to the fourth pilot, and the second pilot is orthogonal to the third pilot; and parsing the local transmit signal and the peer transmit signal by using the local receiver.

公开(公告)号：US20160149742A1

公开(公告)日：2016-05-26

申请号：US15010248

申请日：2016-01-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingwen Yi ,  Cheng Hong ,  Huaping Qing

IPC: H04L27/26 ,  H04J14/02 ,  H04B10/64 ,  H04B10/61

CPC classification number: H04L27/2659 ,  H04B10/615 ,  H04B10/6164 ,  H04B10/64 ,  H04J14/0298 ,  H04L27/26 ,  H04L27/2657 ,  H04L27/2682 ,  H04L27/2697

Abstract: A multi-waveband OFDM receiver and a frequency offset compensation method and system are disclosed. The method includes: performing single waveband frequency offset estimation on an optical comb line of each order; classifying the optical comb lines into a low mutation optical comb line and a high mutation optical comb line; performing joint frequency offset estimation on the low mutation optical comb line; and performing compensation for a frequency offset of a radio frequency drive signal by using an estimated joint frequency offset. The present invention improves accuracy and reliability of the frequency offset estimation of the radio frequency drive signal, so that the degree of the compensation for the frequency offset of the radio frequency drive signal is more comprehensive and accurate.

Abstract translation: 公开了一种多波段OFDM接收机和频偏补偿方法及系统。 该方法包括：在每个顺序的光梳线上执行单波段频偏估计; 将光梳线分为低突变光梳线和高突变光梳线; 对低突变光梳线进行联合频偏评估; 并通过使用估计的联合频率偏移来对射频驱动信号的频率偏移进行补偿。 本发明提高了射频驱动信号的频偏估计的精度和可靠性，使得射频驱动信号的频偏补偿的程度更全面和准确。