公开(公告)号：EP2767115A1

公开(公告)日：2014-08-20

申请号：EP11873911.9

申请日：2011-10-14

申请人： Ericsson Modems SA

发明人： TANG, Zhixun ,  LI, Xie ,  ZHANG, Liping ,  ZHANG, Daijun

IPC分类号： H04W24/02

CPC分类号： H04B1/12 ,  H04B1/7105 ,  H04B1/7107 ,  H04B2001/71077

摘要： The present invention relates a method, apparatus, receiver, computer program for joint detection. In the method, it is firstly determined if whether a number of original active codes is beyond a predefined threshold or not, and when the number of the original active codes is beyond the predefined threshold and a strong interference code exists in the active codes corresponding to intra-frequency adjacent cells, it is to apply an interference cancellation to a receive signal, cancel MAI caused by a strong interference signal corresponding to the strong interference code, and perform a joint detection by utilizing a matched filtering result of a remaining signal after the interference cancellation for the joint detection. According to at least one embodiment of the present invention, when there is large interference in the intra-frequency adjacent cells and the number of the active codes is beyond a maximum threshold, the joint detection performance is improved.

公开(公告)号：EP2868048A1

公开(公告)日：2015-05-06

申请号：EP12880100.8

申请日：2012-06-28

申请人： Ericsson Modems SA

发明人： LI, Chao ,  LI, Xie ,  YIN, Kun

IPC分类号： H04L27/20

CPC分类号： H04L27/38 ,  H04L1/0052 ,  H04L1/0057 ,  H04L25/067

摘要： The embodiments of the present disclosure disclose a soft bit un-uniform quantization method, apparatus, computer program and storage medium. The soft bit un-uniform quantization method comprises: determining a threshold value; obtaining a quantization step according to the threshold value; obtaining a first data after a QAM demodulating and before a Turbo decoding in a wireless communication system; and performing a soft bit un-uniform quantization on the first data to obtain a quantization result according to the threshold value and the step. According to the present disclosure, the data after the QAM demodulating and before the Turbo decoding may obtain a distinguished Euclidean distance value and thus the performance can be improved greatly.

公开(公告)号：EP2761765A1

公开(公告)日：2014-08-06

申请号：EP11873358.3

申请日：2011-09-28

申请人： Ericsson Modems SA

发明人： TANG, Zhixun ,  LI, Xie ,  ZHANG, Liping

IPC分类号： H04B1/707

CPC分类号： H04B1/7105 ,  H04B2201/709763

摘要： The present invention relates to a method, an apparatus, a receiver, a computer program and a storage medium for joint detection. The method comprises: adjusting a ranking order of codes in a matched filtering result and a ranking order of column vectors in a system submatrix according to the power, performing the joint detection using an adjusted matched filtering result and an adjusted system submatrix, and acquiring demodulated signals corresponding to the codes. The codes having high power will be demodulated firstly, thus it ensures accuracy of demodulation, inhibits erroneous propagation effect and improves accuracy of the joint detection.