METHOD OF SEMIDYNAMIC CENTRALIZED INTERFERENCE COORDINATION FOR CELLULAR SYSTEMS

摘要

A radio access network, wherein the RAN comprises a plurality of base stations and a base station controller, wherein the BSC allocates radio resources (space, time, frequency, energy) of a resource domain, and wherein each base station may handle within a corresponding base station area a plurality of subscriber stations, is characterized in that each base station area is statically divided into a plurality of spatial subsectors, that a subset of the time-frequency domain of the resource domain is allocated to each of the subsectors, that the base stations collect traffic information for each subsector belonging to their respective base station area, the traffic information comprising interference conflict scenarios and traffic load, that the base stations summarize the traffic information for each subsector belonging to their respective base station area, that the base stations provide the base station controller with said summarized traffic information for each subsector belonging to their respective base station area regularly, in particular periodically, that the base station controller analyses the summarized traffic information for each subsector and re-allocates subsets of the time-frequency domain to the subsectors regularly, in particular periodically, in order to minimize interference between base stations, and that each base station comprises an independent local scheduling entity allocating radio resources of a subset of the radio resource domain, allocated to a given subsector at a given instant in time, to subscriber stations within this subsector. The method allows a large throughput for each base station at a low management effort within the RAN.