Method for dividing a subcarrier permutation zone and an information configuration system

An information configuration system for dividing a subcarrier permutation zone for a first base station and a second base station in an Orthogonal Frequency Division Multiple Access system, comprising:

• a configuration unit, configured to perform configuration to subcarrier permutation zone division information for the first base station and the second base station, and to send the subcarrier permutation zone division information to a configuration synchronization unit;
• and
• the configuration synchronization unit, configured to calculate a configuration effective frame number, wherein the configuration effective frame number is dependent on a maximum time delay required for synchronizing the first base station with the second base station, and to send the subcarrier permutation zone division information and the configuration effective frame number to the first base station and the second base station;
• wherein the first base station is configured to divide its frames into a first plurality of subcarrier permutation zones according to the subcarrier permutation zone division information and the configuration effective number;
• and the second base station is configured to divide its frames into second plurality of subcarrier permutation zones according to the subcarrier permutation zone division information and the configuration effective number such that, at any given moment, a first frame associated with the first base station and a first frame associated with the second base station have an identical permutation mode.