公开(公告)号：US09948448B2

公开(公告)日：2018-04-17

申请号：US15029249

申请日：2014-05-28

Applicant: ZTE CORPORATION

Inventor： Qun Liao ,  Yi Cai ,  Weiqin Zhou

IPC: H04L7/00 ,  H04B10/61 ,  H04L5/04 ,  H04L27/26

CPC classification number: H04L7/0037 ,  H04B10/616 ,  H04B10/6161 ,  H04B10/6162 ,  H04B10/6164 ,  H04B10/6165 ,  H04B10/6166 ,  H04L5/04 ,  H04L27/265

Abstract: A clock recovery method and device relate to the field of communication; and address the problem of the non-synchronization between the sampling clock of the transmitter and the sampling clock of the receiver. The method includes calculating a clock sampling error, a signal phase error compensation value, and a residual phase error compensation value based on data obtained after polarization demultiplexing and equalizing; adjusting a sampling clock based on the clock sampling error; performing phase adjustment for the first time based on the signal phase error compensation value; performing phase adjustment for the second time based on the residual phase error compensation value. The technical scheme provided by the embodiments of the present document is adapted to a coherent data receiver, and achieve the mechanism of the three levels of error compensation.