基于异构网络的端到端QoS控制技术研究

摘要

为了保证跨有线网络和无线网络端到端业务互通的服务质量,对有线网络和无线网络分别取得的服务质量控制成果和存在的问题进行了简要分析,提出了一种基于有线和无线一体的通信网络服务质量控制框架,该框架覆盖了异构网络的各个层面,支持有线固定通信方式和卫星、短波等无线通信方式.固定网侧采用区分服务的方式,并延伸到无线网中,同时综合利用优先级分配、负载均衡(路径选择)和状态反馈等多种手段对有线和无线网络业务互通进行端到端服务质量保障,满足不同用户和应用对信息传输的需求.%In order to ensure the end-to-end QoS across cable networks and wireless networks,the QoS control results and existing problems are briefly introduced.A QoS control frame of united mobile and fixed networks is proposed,which includes all the logical layers,supporting cable fixed communications and wireless communications such as satellite and high frequency radio communications.Differentiated services are applied within the fixed network,and this mechanism is extended to the wireless network.Meanwhile,priority allocation,load balancing (path selecting) and state feedback are used to control the end-to-end QoS across cable networks and wireless networks to meet the needs of information transmission for different users and applications.