Introduction of discontinuous transmission in CDMA communications techniques is achieved by selectively using additional spreading codes for spreading a frame of data. By dividing a frame into two or more portions and spreading each portion with a different spreading code, the frame can be transmitted...http://www.google.fr/patents/US5896368?utm_source=gb-gplus-shareBrevet US5896368 - Multi-code compressed mode DS-CDMA systems and methods
Multi-code compressed mode DS-CDMA systems and methods
