In the last few years a large technological jump has taken place in the field of mobile communications due to the introduction of new mobile communication networks (GSM/PCN). The number of subscribers worldwide has risen to over 150 Million. The req
Common PCN Handset Specification (Version 4.2) The information contained in this specification is subject to the terms and conditions of the letter of agreement under which the specification is supplied to the Recipient's organisation. None of the i
PART A －市场需求 A.1 介绍和历史 在1989年晚些时候，三个社团被选作英国新一代个人通信网络的提供商。他们于1991年1月1日成立了欧洲个人通信运营商联盟，他们是Mercury Personal Communications、Microtel和Unitel。 联盟认可并支持ETSI制定的DCS1800的标准作为生产厂商发展手机技术规范的基础。 DCS1800标准提供了手机之间作为最小子集的在共同功能，并且为了确保所有PCN手机都应该和每一个PCN运营商提供的网络兼容，定义一组应该被
In late 1989, three consortia were selected as providers of a new generation of Personal Communication services in the UK. These consortia formed an association, The Association of European PCN Operators (“The Association”), whose members as of Janu
