Method of selecting PN codes for reducing interference between users and a method therefor

摘要

A method and apparatus for reducing interference between users in an MCR (Multiple Chip Rate) direct-sequence CDMA (Code Division Multiple Access) system. The method includes classifying a chip transmission rate for each user in a cell of the MCR direct-sequence CDMA system, and selecting the PN codes having a predetermined rate, which is higher than that of the PN codes of users having a low-speed chip transmission rate, with respect to users having a high chip transmission rate in accordance with the classified chip transmission rate of the respective user.