Patent ID: 7349459
Filing Date: 2008-03-25
Classification: H04B,H04L

Abstract:
1. A method of processing a received signal, comprising: detecting within said received signal a plurality of possible symbols (d filtering said received signal, said filtering step adapted for supplying a complex vector characteristic of said received signal, and including decomposing said complex vector into a real vector (y searching separately for at least a closest neighbor of the real vector and a closest neighbor of the imaginary vector within a respective real and imaginary lattice of points (Λ, Ω) corresponding to said modulation constellation; and estimating the transmitted symbols from components of said closest neighbor of the real vector and the closest neighbor of the imaginary vector so as to produce a vector of estimated symbols, wherein the step of searching is limited to a first set of points in the real lattice belonging to a first predetermined zone (Σ