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AMPS制式 AMPS全称为先进移动电话系统,它是美国贝尔研究所于80年代初研制的小区制大容量公用陆地移动通信系统。该系统采用从端局就近入网的方式,一个移动电话交换局通过中继线与市话各端局相连,各基站与移动电话交换局之间除了有话音线外,还有数据控制线。从移动电话局在市话网中所处的地位来看,它是市话的一个端局,因此移动电话在编号方式上可以与市话一样。在移动台呼叫或通话过程中,当从一个小区转移到另一个小区时,根据移动电话
AMPS standard AMPS full name for the advanced mobile phone system, which is the United States Bell Institute developed in the early 80’s large-capacity residential land mobile telecommunications system. The system uses the network access from the end office near the way, a mobile phone exchange through the trunk and local telephone market connected to each end, in addition to the base station and mobile exchange between the voice line, there are data control line. From the position of the mobile phone office in the local telephone network, it is one end of the local call, so the mobile phone numbers can be the same as the local number. During a mobile station call or call, when moving from one cell to another, according to the mobile phone