通信领域是当今技术更新最快的市场之一,各种通信新技术层出不穷,在新技术带动下的新业务越来越丰富多彩。在通信技术的发展过程中,呈现出来的特点和发展趋势主要表现在两个方面,一个是随时随地能够进行信息交流的移动技术,另一个是能够实现更丰富信息交流所需的带宽问题。近几 The field of communications is one of the fastest-growing markets for technology updates in the world today. New technologies are emerging in new forms of communication and new services are becoming more and more colorful. In the development of communication technology, the characteristics and development trends presented mainly in two aspects, one is the mobile technology that can exchange information anytime, anywhere, and the other is the bandwidth problem that can achieve more abundant information exchange. Recent