Patent ID: 6377819
Filing Date: 2002-04-23
Classification: H04B

Abstract:
In a wireless communication system comprising a base transceiver station, said base transceiver station comprising an array of N base station antennas; a method for simultaneously sending R information signals s1 . . . sR from said base transceiver station to R remote transceivers T1 . . . TR, respectively, wherein each of said remote transceivers comprises M remote antennas; said method comprising the following steps:(a) selecting R discrimination vectors V1 . . . VR, each of said discrimination vectors having N components; (b) computing an N-component transmission signal vector U, wherein U=&Sum;i=1R&it;â€ƒ&it;Vi&it;si;(c) transmitting the N components of said transmission signal vector U from said array of base station antennas; (d) receiving, through the M remote antennas of a first of said remote transceivers, an M-component received signal vector Z1; and (e) computing a reconstructed signal y1 from said received signal vector Z1; wherein N&gE;R and M>1.