For each user in a multi-user detection arrangement in a CDMA communications system, a detector (80) provides a limiting function (88) responsive to a combined signal to produce a detection signal, having any of at least three possible values, for supply to a signal regenerator, regenerated signals being...http://www.google.co.uk/patents/US7327713?utm_source=gb-gplus-sharePatent US7327713 - Multi-user detection in CDMA communications system
