【摘要】 文章介绍了分组无线网-PRN（PacketRadioNetwork）技术的一个重要组成部分，即IP协议层到PRN协议层接口的研究和实现过程。通过对IP层到低层协议接口的分析，给出了PRN协议层到IP协议层的界面的描述，设计了实现界面功能的命令和处理过程。实现了IP数据报透明地通过PRN，应用层则实现了FTP的基本功能。更多还原

【Abstract】 In this thesis, a procedure Of design and implementation Of an interfaCe between lP protocol layer and PRN protocol layer, which is a very important part of the technology of PRN (Packet Radio Network), is inboduced. Based on the technical analysis of the connection betWeen lP protocol layer and lOwer protOCOl layer, aninterface between lP and PRN is described in detail, some appropriate commands are added and a series Of procures are designed. In the end, an lP datagl’am can pass through the PRN ~sparenily and the basic fonchonsof FTP are implemented.更多还原