Equalizing Method in a Receiver Node of a Wireless Communication System

摘要

The present invention relates to an equalizing method in a receiver node of a cellular wireless communication system, the cellular wireless communication system using time/frequency resource elements for transmission of radio signals over a Multiple Input Multiple Output, MIMO, radio channel, and the radio signals comprising different channels and/or pilot symbols; the method comprising the steps of: a) receiving at least one radio signal comprising a plurality of resource elements; b) obtaining interference information associated with the plurality of resource elements; c) extracting resource elements from the plurality of resource elements carrying data into a first set based on the interference information so that the first set comprises resource elements carrying data and being affected by interference; d) dividing the resource elements in the first set into one or more sub-sets each comprising T number of resource elements; e) filtering the resource elements in said one or more sub-sets by applying a balanced whitening and energy focusing filter W so as to obtain filtered resource elements y ; and f) equalizing the filtered resource elements y by applying at least one detector arranged to handle L MIMO layers. Furthermore, the invention also relates to a receive device, a computer program, and a computer program product thereof.