Patent ID: 7817752
Filing Date: 2010-10-19
Classification: H04L

Abstract:
1. Apparatus for detecting values of a block of symbols received at a radio communication station, said apparatus comprising: a first decider adapted to receive indications of the block of data symbols and of a first channel condition matrix representative of channel conditions of channels upon which the block of data symbols is communicated, said first decider configured to decide first-decided values of the block of data symbols; a second decider adapted to receive indications of the block of data symbols and of a second channel condition matrix representative of the channel conditions upon which the block of data symbols is communicated, the second representation of the channel conditions being a permutation of the first representation of the channel conditions, said second decider configured to decide second-decided values of the block of data symbols; a first error sum calculator configured to form error sum calculations upon the first decided values and a second error sum calculator configured to form the error sum calculations upon the second decided values; a comparator configured to compare error sum calculations made upon the first decided values and error sum calculations made upon the second decided values; and a selector configured to select one of the first decided values and the second decided values as detected values of the block of data symbols, the selection made by said selector being made responsive to a comparison made by said comparator.