HSDPA中的公共信道利用分析

传统集中模式下的高速下行链路分组接入(HSDPA)公共信道协商机制与宽带码分多址(WCDMA)、传统GSM网络无本质区别,游离于无线资源分析之外,成为信道设计的盲区。由于缺乏有效监控和调节反馈策略,不仅间接影响客户感知,也直接加剧频谱资紧张。为此,以个体局部纳什(Nash)均衡和整体萨谬尔森(Samuelson)均衡的公共信道共享策略比较为前提,考虑漫游用户信令传递过多依赖各专用信道,以及系统承载信令对公共信道的挤占效应两方面的正负影响。分析了3种各自不同优先级别情况下,漫游用户群和系统在HSDPA公共信道利用对整体效用的影响,最终初步建立了整体效用最大化的公共信道利用分析模型。

Utilization Analysis of Public Common Channels in HSDPA

The utilization analysis of public common channels continues traditional central assign which is dissociated from wireless resource analysis and wireless channel design.So there is no essential difference among WCDMA,GSM and HSDPA system in public common channel negotiation mechanism.It is lack of effective supervision and feedback accommodation strategy,which not only has undirect influence on consumers'apperceive,but also pricks up the strain of wireless resource.Based on the individual local Nash equilibrium and whole Samuelson equilibrium,two opposite influences are taken into consideration,such as the dependence on dedicated channels by the consumers and the public common channel occupancy by the system.Three different preferential degrees are divided between the ramble consumers and the system to get the influence of the public common channel utilization on the whole utility.Finally the analysis model of public common channels utilizations is established.