The session layer uses wsp ( wireless session protocol ) and provides two session services for the wae layer with known interfaces . these services refer to connection - based service from the wtp layer to ensure data transmission and connectionless service , not to ensure data transmission 会话层采用wsp ( wirelesssessionprotocol ) ,使用已知的接口为wae层提供两种会话服务:来自于wtp层的基于连接的服务以确保数据传输;以及不确保数据传输的无连接服务。
Then it presents the researches of protocols of wap : wdp ( wireless datagram protocol ) , wtp ( wireless transaction protocol ) and wsp ( wireless session protocol ) , and analyze their characteristics of performance . the designing methods and process of remote terminal control system based on wap are introduced , too . finally , this paper analyzes the existing problems of wap applications and predicts the development of wap applications in the future 本论文首先对wap协议栈以及wap应用模型做了介绍;其次着重研究了wap其中的三层协议: wdp ( wirelessdatagramprotocol ) , wtp ( wirelesstransactionprotocol )和wsp ( wirelesssessionprotocol ) ,并分析了它们性能和特点;然后创建了一个基于wap的远程终端控制系统,并且详细阐述了设计过程与方法;最后,对于wap目前应用中存在的问题做了分析并对预测了wap的发展前景。