METHOD AND APPARATUS FOR CODE ALLOCATION FOR VARIABLE DATA RATES IN A CDMA SYSTEM

摘要

The invention is concerned with a method of the invention for modulating an information signal in a telecommunication system. The communication system makes use of spreading codes in the modulation to discriminate between user signals. The codes are allocated for incoming requests by selection from one or more code structures having codes of different bit rates. The method is characterized by the steps of noting the bit rate of a code to be allocated for an incoming request, determination of the availability of the different codes having the desired bit rate, and allocating a code in accordance with pre-selected rules by taking the availability of the different codes into consideration in a way leading to an optimal use of the code structure(s). The apparatus of the invention comprises means for performing the method of the invention. The algorithm of the invention performs the allocation method of the invention in form of a computer program in accordance with certain rules.