公开(公告)号：EP3678297A1

公开(公告)日：2020-07-08

申请号：EP18870539.6

申请日：2018-10-25

申请人： ZTE Corporation

发明人： SUN, Erkun ,  CAI, Yi ,  WANG, Weiming ,  YIN, Junjie

IPC分类号： H03M13/29

摘要： Provided in the present disclosure are a method and device for decoding a Turbo product code, and a computer-readable storage medium. The method includes: acquiring a received codeword and a code pattern of the Turbo product code; determining a reduced error mode set according to the code pattern, a number of unreliable bits, and a reduced number of error bits, where the reduced number of error bits is less than the number of unreliable bits; calculating an optimal codeword according to the reduced error mode set and the received codeword; calculating extrinsic information by using a decoding algorithm according to the optimal codeword; and performing iterative computation according to the extrinsic information and a preset number of iterations to obtain a decoding result of the received codeword.

公开(公告)号：EP3007394A1

公开(公告)日：2016-04-13

申请号：EP15275211.9

申请日：2015-10-07

申请人： ZTE Corporation

发明人： CAI, Yi ,  JIA, Zhensheng ,  YU, Jianjun

IPC分类号： H04L25/03

CPC分类号： H04B10/612 ,  H04B10/613 ,  H04B10/616 ,  H04B10/6161 ,  H04L1/0054 ,  H04L25/03203 ,  H04L2025/0342

摘要： In a receiver of Quadrature Amplitude Modulation (QAM) signal, the received QAM signal is divided into multiple Quadrature Phase Shift Keying (QPSK) symbol streams. A Maximum Likelihood Symbol Estimation (MLSE) is performed on each QPSK symbol stream to recover information bits in the received QAM signal. In one advantageous aspect, complexity of implementation can be reduced by performing MLSE on QPSK signals instead of QAM signals.

摘要翻译： 在正交幅度调制（QAM）信号的接收机中，所接收的QAM信号被分成多个正交相移键控（QPSK）符号流。 对每个QPSK符号流执行最大似然符号估计（MLSE）以恢复所接收的QAM信号中的信息比特。 在一个有利的方面，可以通过对QPSK信号代替QAM信号执行MLSE来减少实现的复杂度。

公开(公告)号：EP3046300B1

公开(公告)日：2020-12-09

申请号：EP14795343.4

申请日：2014-05-28

申请人： ZTE Corporation

发明人： LIAO, Qun ,  CAI, Yi ,  ZHOU, Weiqin

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

公开(公告)号：EP3007394B1

公开(公告)日：2019-07-03

申请号：EP15275211.9

申请日：2015-10-07

申请人： ZTE Corporation

发明人： CAI, Yi ,  JIA, Zhensheng ,  YU, Jianjun

IPC分类号： H04L25/03

公开(公告)号：EP3474466A1

公开(公告)日：2019-04-24

申请号：EP17812568.8

申请日：2017-06-02

申请人： ZTE Corporation

发明人： DU, Zhiyun ,  CAI, Yi ,  ZHOU, Weiqin ,  YUAN, Lei

IPC分类号： H04B10/61

摘要： Disclosed are a loss compensation method and device. The method is applied to a scenario where an Application Specific Integrated Circuit (ASIC) and an optical module are separated, and the method includes: determining a first compensation coefficient of a transmitting end to equalize return interference and compensate for insert loss; pre-compensating a first digital signal based on the first compensation coefficient to obtain a first compensation signal, performing digital-to-analog conversion on the first compensation signal, and inputting the converted signal to an optical transceiver through a connector; determining a second compensation coefficient of a receiving end to equalize return interference and compensate for insert loss; and compensating a second digital signal at the receiving end based on the second compensation coefficient to obtain a second compensation signal, wherein the second digital signal is a signal obtained by performing analog-to-digital conversion on a signal outputted from the optical transceiver and transmitted through the connector.

公开(公告)号：EP3046300A1

公开(公告)日：2016-07-20

申请号：EP14795343.4

申请日：2014-05-28

申请人： ZTE Corporation

发明人： LIAO, Qun ,  CAI, Yi ,  ZHOU, Weiqin

IPC分类号： H04L27/26 ,  H04L7/00

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

摘要： 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 invention is adapted to a coherent data receiver, and achieve the mechanism of the three levels of error compensation.

摘要翻译： 时钟恢复方法和设备涉及通信领域; 并解决发射机采样时钟与接收机采样时钟之间不同步的问题。 该方法包括基于偏振解复用和均衡之后获得的数据来计算时钟采样误差，信号相位误差补偿值和残余相位误差补偿值; 基于时钟采样误差调整采样时钟; 基于信号相位误差补偿值第一次执行相位调整; 基于残余相位误差补偿值执行第二次相位调整。 本发明实施例提供的技术方案适用于相干数据接收机，实现三级误差补偿的机制。