the invention relates to a method for channel equalization in a receiver , in which a signal is received from a communication channel , the signal containing symbols formed of binary information by phase shift keying . in the receiver , channel estimation is performed to estimate the properties of the communication channel , and samples are taken of the received signal at intervals . in the method , a determined number of samples is examined at the time , and a decision step is taken , in which , to find out the transmitted symbols , bit decisions are computed on the basis of said determined number of samples . after each decision step , it is examined , whether said decision step is to be iterated . upon iteration of said decision step , at least some of the bit decisions of the preceding decision step are used in addition to the samples under examination at the time , for computing the bit decisions .