Patent ID: 6714609
Filing Date: 2004-03-30
Classification: H04B,H04L

Abstract:
A reception method used in a radio system, in which a receiver receives signals comprising a desired signal and one or more interference signals, which desired signal and interference signals comprise a predetermined sequence, by which the signals can be separated from each other, characterized byforming a signal estimate of the desired signal by means of the predetermined sequence of the desired signal; searching for the most interfering interference signal and forming a co-channel signal estimate by means of the predetermined sequences of the desired signal and the interference signal; forming the first residual signal, which describes the difference between the received signal and the signal estimate of the desired signal; forming the second residual signal, which describes the difference between the received signal and the co-channel signal estimate; comparing the first residual signal with the second residual signal an don the basis of the comparison, detecting the received signal either by one signal detection, whereby the effect of the interference signal on the desired signal is left unnoticed, or by joint detection, whereby the effect of the interference signal on the detection of the desired signal is taken into account.