随着信息技术的迅速发展 ,相关的图书出版也日新月异。通信技术是信息技术的重要组成部分 ,这一领域近年来最令人瞩目的技术进步有很多是在移动通信方面 ,而第三代移动通信更是人们普遍关注的焦点。国际电信联盟早在 1985年就提出了第三代移动通信的概念 ,并设置了专门的研究机 With the rapid development of information technology, related books are also being published with each passing day. Communication technology is an important part of information technology. In this area, many of the most remarkable technological advances in recent years have been in mobile communications, and the third generation of mobile communications has become a common focus of attention. As early as 1985, the International Telecommunication Union proposed the concept of the third generation mobile communications and set up a special research machine