Patent ID: 6067292
Filing Date: 2000-05-23
Classification: H04B

Abstract:
A code division multiple access (CDMA) receiver for receiving and demodulating a coherent CDMA signal including at least one user data channel and a separate pilot channel over a plurality of L(L>or =2) paths, where the desired data channel is orthogonal to the pilot channel for a given path, the CDMA receiver comprisingL path demodulators, each demodulator for estimating a data channel and a pilot channel from a CDMA signal received over one of the L paths and for generating L-1 pilot cancellation signals each to be used by an associated subtractor means, andL subtractor means, each subtractor means for subtracting the L-1 pilot cancellation signals produced by non-associated L-1 path demodulators from the CDMA signal associated with that subtractor means.