METHODS AND NODES IN A WIRELESS COMMUNICATION NETWORK FOR JOINT ITERATIVE DETECTION/ESTIMATION

摘要

Receiver(120) and method (600) in a receiver (120), for iterative channel estimation and data decoding of signals received from a radio network node (110),comprised in a wireless communication network (100).The method (600) comprises detecting (601)a signal of the radio network node (110), performing (602) channel estimation of the detected (601) signal, based on iterative application of a Space Alternating Generalised Expectation and maximisation, SAGE, algorithm, determining (603) a channel/link quality, based on the performed (602)channel estimation and the estimated channel parameters, selecting (604) Multiple-Input and Multiple-Output, MIMO, detector, based on the determined (603) channel quality, determining (605) to enable and/or disable, respectively, soft-Iterative Channel Estimation, soft-ICE, based on the determined (603) channel quality, and iterating (606) the performed (602) channel estimation for a pre-determined number of times.