Method and apparatus for suppressing inter-cell interference

The invention claims a method for suppressing interference among cells method device and the method comprises: Divided edge the sub-zone channel and the center of signal path group; Of adjacent sub-districts the edge of the channel are orthogonal each other in the centre of communication channel soft frequency multiplexing; Obtaining the edge of channel groups in signal to interference ratio is larger than the preset threshold value the edge of the channel to form a first spare channel congregation; Calculating a first spare channel set in each edge channel and the edge channel corresponding to the maximum interference channel between the relativity of the selected correlation minimum the edge of the channel as the first level of channel; Obtaining the centre of channel groups in signal to interference ratio is larger than the preset threshold value in the center of the channel is composed of a second spare channel congregation; Calculating a second spare channel set in each central channel and the central channel corresponding to the maximum interference channel between the relativity of the selected correlation minimum in the center of the channel as the second level of channel; Compared with the first level of channel and the second level of the channel signal to interference ratio the signal to interference ratio of the assigned to the sub-zone edge area of terminal. Can restrain the interference between sub-zones reducing resource waste.