Abstract: Internet pricing is always the core problem of broadband network.Based on the traditional internet pricing scheme，this paper introduces service class into effect models to search for the price equilibrium that maximizes both the customer utility and network provider profit.In addition，the realistic feasibility of the pricing scheme is verified with simulation by setting concrete customer utility function and network providers profit function in proposed models.

Key words: network pricing, utility model, network control, Quality of Service（QoS）

摘要： 网络定价问题一直是宽带通信网中的核心问题。在传统定价策略基础上，将服务级别引入效用模型，寻找同时满足客户效用最大化和网络提供商收益最大化的价格均衡点，在理论模型基础上，通过设定具体的用户效用函数以及网路提供商成本函数，运用仿真模拟的方法验证了这种定价策略的现实可行性。

关键词: 网络定价, 效用模型, 网络控制, 网络服务质量