Patent ID: 7590192
Filing Date: 2009-09-15
Classification: H04B,H04L

Abstract:
1. A method, implemented in a wireless transmit/receive unit (WTRU), of estimating a non-stationary mean of a group of common pilot channel (CPICH) symbols to increase the accuracy of a signal-to-interference ratio (SIR) estimate, the method comprising: receiving a plurality of CPICH symbols in the wireless transmit/receive unit (WTRU); partitioning the CPICH symbols into M groups of symbols, each group size being L(m), where m=1 . . . M; forming a vector Y from symbols in a current group of symbols; forming a vector X from −[L(m)−1]/2 up to [L(m)−1]/2 in steps of one; calculating an average of Y; and calculating a vector inner-product of X and Y by an average of a square of the symbols in X, B=(X