CDMA base station apparatus and code assignment method

Code reading section (44) reads code specification information stored in all code list (42) and interference level measuring section (30) measures the interference level of each code, threshold determination section (45) selects the code specification information whose interference level is smaller than a preset threshold and stores it in code candidate list (43) and code determination section (46) determines the code specification information of said station from the selected code specification information pieces. When adding a new base station, this makes it possible to automatically determine said station code, eliminating the need for theoretical design for assigning codes to all base stations.