IRC功能的原理及应用

Principle and Application of IRC Function

IRC（Interference Rejection Combining）＂干扰拒绝合并＂是一种先进的干扰抑制算法,可以提高GSM系统中的信号接收质量,减少误码的产生,从而提高上行的业务质量。相比现网普遍使用的上行接收算法是＂最大比值合并＂MRC（maximum Ratio Combining）,IRC是爱立信在BSSR10版本引入的新功能。开启IRC功能后,可以改善上行信号的接收质量,对话务的接入、保持以及切换都会得到改善。从频率规划角度来看,由于现在的网络不断的扩容,频率复用愈加紧密。使用IRC后可以有效的降低上行干扰,提高话音质量,增加上行的数据吞吐量和减少掉话。

IRC is an advanced algorithm for interference suppression,GSM system can improve the reception quality and reduce the error in the production,thereby enhancing the quality of service up.Than is commonly used network uplink receiver algorithm is MRC,IRC is the introduction of Ericsson BSS R10 version of the new features.Open IRC feature can improve the reception quality of uplink signals,the dialogue service access,maintain,and switching will be improved.from frequency planning point of view,As is now continuous expansion of network,frequency reuse becomes tighter.After using IRC can effectively reduce the uplink interference,improve voice quality,and increase the uplink data throughput and reduce dropped calls.