Patent ID: 7324583
Filing Date: 2008-01-29
Classification: H04B

Abstract:
1. A code division, multiple access (CDMA) receiver having an input node coupled to a plurality S of receive antennas that receive signals from a plurality N of transmit antennas, comprising: J correlators outputting soft symbol decisions, where J=N times a number of detected physical channels; N equalizers each having an input coupled to said input node and an output coupled to as many correlators as there are detected physical channels of the said J correlators; a channel estimator having an input coupled to said input node and N outputs representing a channel estimate for each of said transmit antennas; and a unit for computing coefficients for each of said N equalizers, said unit having a first input coupled to said input node, second inputs coupled to said N outputs of said channel estimator, and third inputs for receiving estimates of received chip energy per transmit antenna, said unit computing said coefficients so as to operate said equalizers for simultaneously suppressing inter-antenna interference and multiple user interference such that the suppression of the inter-antenna interference and the multiple user interference is balanced with respect to their deteriorating impact on symbol estimates.