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为提升移动终端的传输性能,使终端有效利用环境中现有网络资源,设计了一种终端接入方式反馈控制机制。该机制应用下一代4G网络中的ANDSF网元与终端进行策略通信,ANDSF对终端用户无线侧信息采集,当无线环境发生变化,必要时向终端发送策略信息,终端通过解析策略来选择网络接入方式。为验证机制的可行性,搭建了由ANDSF与移动终端构成的演示系统。演示结果表明,提出的机制使终端有效的选择了最优的网络,获得了良好的服务质量。
In order to improve the transmission performance of the mobile terminal and enable the terminal to effectively utilize the existing network resources in the environment, a feedback control mechanism of the terminal access mode is designed. The mechanism uses the ANDSF network element of the next generation 4G network to carry out policy communication with the terminal. ANDSF collects information on the wireless side of the terminal user. When the wireless environment changes, if necessary, the terminal sends the policy information, and the terminal selects the network access the way. In order to verify the feasibility of the mechanism, a demonstration system consisting of ANDSF and mobile terminal was set up. The demonstration results show that the proposed mechanism enables the terminal to effectively select the optimal network and obtain a good quality of service.