DMS-MTX turnkey system for cellular mobile radio application

With advances in digital switching technology and new concepts in cellular mobile radio, it has become possible to provide automatic, high quality, flexible, and uninterrupted mobile telephone services to millions of public users. The cellular radio concept makes efficient use of the radio frequency (RF) spectrum through coordinated reuse of allocated channels. Northern Telecom´s DMS-MTX system, a member of the DMS-100* family of switching systems, uses computer-controlled, digital technology to provide a state-of-the-art system capable of handling simultaneous calls for a large subscriber base. The DMS-MTX system, jointly developed by Northern Telecom and General Electric, consists of the mobile telephone exchange (MTX), the cell site controllers (CSC), and the radio control units (RCUs). This paper describes the functions of the MTX and the CSC and explains how they interface with the RCUs and the mobile telephone users in call establishment. The functions of various RCUs are described in an accompanying paper.