It really is generally employed to deliver superior-speed Net to mobile devices, providing a trusted relationship that allows multimedia usage and data access on the go.码片同步 ：指接收端的扩频码与发送端的扩频码在码片时序上的同步。这一过程需要解决码片时序的捕获和跟踪问题，通常采用滑动相关
The chapter concentrates on the changeover of some RRM features including the packet scheduler into NodeB. The improvements in RRM capabilities of your network nodes brought about more modifications of HSDPA air interface together with introduction of higher‐buy modulation and coding strategies, and modification of your MAC protocol architecture