Patent ID: 6201799
Filing Date: 2001-03-13
Classification: H04B

Abstract:
A multiple-code (MC) code division multiple access (CDMA) receiver for simultaneously receiving and demodulating J data signals within a CDMA signal, where J is an integer, J>1, and where the jth data signal, j=1 . . . J, is received over a plurality of L.sub.j paths where L.sub.j is an integer, L.sub.j.gtoreq.1, the MC-CDMA receiver comprisingmeans for receiving the J data signals, and forming therefrom L.sub.j multipath delay estimates and L.sub.j channel estimates for the jth data signal,means for demodulating L.sub.j multipath components of the jth data signal and combining the results to form J decision statistics for the J data signals,a decorrelator, responsive to the L, L=L.sub.1 +L.sub.2 + . . . +L.sub.J, channel estimates, the L multipath delays and the J data-signal codes, for suppressing, for a desired received data signal, interference caused by the other J-1 data signals; anda processor for producing therefrom the desired demodulated data signal.