CODE-RATE INCREASED COMPRESSED MODE DS-CDMA SYSTEM AND METHODS

摘要

INTRODUCTION OF DISCONTINUOUS TRANSMISSION IN CDMA COMMUNICATIONS TECHNIQUES IS ACHIEVED BY USING SELECTIVELY PUNCTURING CODED OUTPUT OF A CONVOLUTIONAL ENCODER. BY TEMPORARILY INCREASING THE CODING RATE DURING A FRAME, INFORMATION ONLY FILLS AN INFORMATION PART OF A FRAME IN A COMPRESSED MODE, LEAVING AN IDLE PART OF THE FRAME IN WHICH TO PERFORM OTHER FUNCTIONS, SUCH AS EVALUATION OF OTHER FREQUENCIES FOR USE IN HANDOVER BETWEEN FREQUENCIES.FIGURE 4