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一、CDMA系统结构 CDMA数字蜂窝移动通信系统的结构如图1所示: CDMA 数字蜂窝移动通信系统主要由交换子系统和基站子系统两大部分组成。连接两大子系统的接口(也就是连接BSC和MSC的接口)称之为A接口,A接口是CDMA数字蜂窝移动通信系统中一个非常重
First, the CDMA system structure CDMA digital cellular mobile communication system structure shown in Figure 1: CDMA digital cellular mobile communication system consists of switching subsystem and base station subsystem consists of two parts. The interface that connects the two sub-systems (that is, the interface that connects the BSC and the MSC) is called the A interface, which is a very heavy one in a CDMA digital cellular mobile communication system