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

Applicant: Ericsson Modems SA

Inventor： TANG, Zhixun ,  LI, Xie ,  ZHANG, Liping ,  ZHANG, Daijun

IPC: H04W24/02

CPC classification number: H04B1/12 ,  H04B1/7105 ,  H04B1/7107 ,  H04B2001/71077

Abstract: 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：EP2761765A1

公开(公告)日：2014-08-06

申请号：EP11873358.3

申请日：2011-09-28

Applicant: Ericsson Modems SA

Inventor： TANG, Zhixun ,  LI, Xie ,  ZHANG, Liping

IPC: H04B1/707

CPC classification number: H04B1/7105 ,  H04B2201/709763

Abstract: 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.