无线资源管理RRM Radio Resource Management) WCDMA系统是一个自干扰的系统,无线资源管理的过程就是一个控制自己系统内的干扰的过程 功率是最终的无线资源,最有效地使用无线资源的唯一手段就是严 格控制功率的使用 功率的使用在CDMA系统中是矛盾的 提高针对某用户的发射功率能够改善该用户的服务质量 另一方面,由于CDMA系统的自干扰性,这种提高会带来对其他用户干扰的增加,从而导致接收质量的降低 几个概念:UTRAN, RAB,RB,RL UTRAN:为非接入层(NAS)提供无线接入承载RAB的建立,维护释放等服务以屏蔽NAS对于无线接入层特性的关注 RAB;The service that the access stratum provides to the non-access stratum for transfer of user data between User Equipment and CN。 RB;The service provided by the layer2 for transfer of user data between User Equipment and Serving RNC RL;A "radio link" is a logical association between single User Equipment and a single UTRAN access point. Its physical realization comprises one or more radio bearer transmissions