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一、ＰＤＣ网的主要优点ＰＤＣ网是日本于１９９３年首先实现的，它的主要优点有：（１）节省基站相关资源。ＰＤＣ采用３个ＴＤＭＡ信道（半速率编码为６个ＴＤＭＡ信道），有效地利用基站（ＢＳ）资源和ＢＳ与移动业务交换中心（ＭＳＣ）之间的传输线。（２）无线电频率利用?
First, the main advantages of PDC network PDC network is Japan first realized in 1993, its main advantages are: (1) save base station related resources. The PDC employs three TDMA channels (half-rate coded to six TDMA channels), making efficient use of base station (BS) resources and transmission lines between the BS and the mobile services switching center (MSC). (2) radio frequency utilization?