Abstract:An algorithm is presented to address allocation independently for CDMA. Different from the traditional address code space searching algorithm, dichotomy is first used to generate other address codes from the initial address codes;secondly, in order to ensure the independence between address codes, half of the digit values change in each of the code generation process; furthermore, between a number of address codes in each generation the anterior half of digit values remain the same;finally, the entire address codes build up a binary tree structure. Taking the 8 bits address code as an example, its distribution is given according to the algorithm. Compared with the traditional method, the rapid distribution algorithm,which is based on a binary tree structure, has a quite low time complexity and needs no mutual independence judgement of the address code. The algorithm can also be used in other instances where data independence is required.