Communication system and method for mitigating interference in hierarchical cell structure

摘要

A method for mitigating interference at a small base station in a hierarchical cell structure is provided. In the method, the small base station checks a sub-frame allocated to macro user equipment by using a downlink signal received from a macro base station when an interference candidate user equipment list is received. The interference candidate user equipment list contains information on the macro user equipment adjacent to a femto cell controlled by the small base station. Then the small base station allocates other sub-frame to femto user equipment located in the femto cell by avoiding the sub-frame allocated to the macro user equipment.

主权项

1. A method for mitigating interference at a second base station in a wireless communication system, the method comprising:
receiving control information; identifying a subframe so as to mitigate interference between the second base station and a first base station, based on the control information to process a signal; and allocating, based at least in part on the control information, the subframe as a resource for communication between the second base station and a user equipment in communication with the second base station in the wireless communication system, wherein the subframe is not allocated as a resource for communication between the first base station and a user equipment in communication with the first base station in the wireless communication system.