Chapter 3 introduces the principles of GPRS network, network protocols and the particularity of data transfer under wireless network environment.
第三章主要介绍了GPRS网络原理和网络协议，并探讨了无线网络环境下数据传输的特殊性。
In this paper, we mainly study the management and control of wireless network environment, which makes a better support fore-learning, video meeting, and so on, which is based on wireless environment.
文章研究了无线网络环境的管理和控制，为无线网络教学、视频会议等提供更好的服务。
In a mobile environment, this is extremely inefficient because of the amount of time a wireless network would take to exchange this information.
在移动环境中，这是极其低效率的，因为使用无线网络交换这种信息将花费大量的时间。
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