摘要
TD-SCDMA系统由于其频带窄、码字短的特点,抗同频同时隙干扰的能力较差,使得TD-SCDMA系统的同频干扰问题,特别是用户集中分布的场景下的同频干扰问题较为突出。本文采用干扰协调技术,即通过合理的无线资源分配和无线资源调整,来尽量避免将可能发生强干扰的用户分配在同频同时隙,可明显减少业务信道产生大干扰的概率,从整体上降低系统业务信道干扰,保证大容量时的网络性能。并通过现网实际测试,验证了干扰协调技术对TD-SCDMA无线网络性能提升的效果。
Because TD-SCDMA system＇s band is narrow and its length of code is short,the co-channel interference is a serious problem.In order to ensure the performance of TD-SCDMA in high capacity,this article adopts the method of interference coordination which use resource allocation and resource adjustment to reduce the probability of co-channel interference in the same time slot.The test results show the improvement of the performance of TD-SCDMA.
出处
《电信工程技术与标准化》
2011年第8期5-8,共4页
Telecom Engineering Technics and Standardization
