它不是单一的一种技术，而是综合了通讯网络的多种技术在内的一个系统，包括了信令协议、语音编解码、媒体传输和网关控制。
It is not a single but a system integrated with several technologies constructing communication network, including Signaling Protocol, Voice Codec, Media Transport and Gateway Control.
该协议综合考虑了传输路径的延时和稳定性，选择在延时限制下平均拥有最稳特性的传输路径。
Considering the delay and the stability of the routing path, this protocol picks the steadiest path with the constraint of delay.
在考虑光载WLAN系统与PON接入网络融合情况下，综合分析得出P CF传输机制是最适合光载WLAN系统的MAC层协议。
Considering the convergence of WLAN over fiber system and PON access network, PCF protocol is proved to be the most suitable transmission mechanism in the MAC layer.
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