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随着社会的发展,科学技术的进步,移动通信技术和无线网络技术日新月异,得到了很好的发展。到目前为止,已有四代通信网络产生并应用到了人们的学习、工作和生活中。而且每一代通信网络都会在上一代的基础之上有所更新和改进,以更好的适应社会生产和生活的各种新的需求。3G网络是中国第一次与国际合作的结果,4G无线网络即是新兴的第四代网络,同3G相比更为先进和科学。两者之间存在着必然的联系,但又互相区别,有各自的优点和缺点,在未来也会有不同的发展方向。
With the development of society, the advancement of science and technology, the mobile communication technology and the wireless network technology are rapidly changing and have been well developed. So far, four generations of communication networks have been produced and applied to people’s learning, work and life. Moreover, each generation of communication networks will be updated and improved on the basis of the previous generation to better meet various new needs of social production and life. 3G network is the first result of China’s cooperation with the international community. 4G wireless network is the emerging fourth generation network, which is more advanced and scientific than 3G. There is a necessary relationship between the two, but different from each other, have their own advantages and disadvantages, in the future there will be a different direction of development.