Inter-Cell Interference Control in Wireless Communication System
Liujun Hu · ZTE Technology Journal · 2011
Inter-cell interference is an inherent problem in cellular mobile communication systems and seriously impacts coverage and capability of a system.For cell edge users,inter-cell interference results in frequent dropping from the network or denial of access to the network.Most standards organizations have conducted research into inter-cell interference control for LTE,IEEE 802.16m,and UMB.As a result,different methods have been devised to deal with the problem,including inter-cell interference randomization,inter-cell interference cancellation,and inter-cell interference coordination.This paper introduces three kinds of effective inter-cell interference coordination technologies:fractional frequency reuse,multi-BS multiple-input multiple-out-put(MIMO),and power control.This paper also introduces the schemes implemented by standards organizations.