Patent ID: 7936729

Claim:
A method for allocating channelization codes in a CDMA (Code Division Multiple Access) system, comprising: A. computing spread spectrum codes allocable in each sector according to a cellization code and a channelization code that are allocated to each sector during the network planning of a CDMA system, computing the correlativity between spread spectrum codes of adjacent sectors, and obtaining a correlation coefficient between the spread spectrum codes allocable in each pair of adjacent sectors; B. performing region division on each sector, and marking out the edge region of each sector; C. determining a priority of each channelization code corresponding to the spread spectrum code of each adjacent sector in the edge region of each sector, according to the correlation coefficient between the spread spectrum codes allocable in each pair of adjacent sectors; D. computing a location information of a user by the system in real time during the operation of the CDMA system, and determining to which region of the sector the user pertains according to the location information; and E. allocating a channelization code to each user by the system according to the region to which each user pertains and the priority of each channelization code in the edge region of each sector determined in step C.