一种基于Femto的GSM网关设计与实现

GSM网络用户众多，在GSM接入网中引入Femto架构，符合移动通信网络扁平化发展趋势。在此研究基于Femto架构的GSM网关，作为用户端数据接入核心网的接口，将移动、宽带和固定业务融合在一起，在GSM网络中将发挥重要的作用。采用IP化承栽方式，Abis接口完全IP化，用模块化设计方法，基于Femto架构，在ATCA的平台上设计实现了具有信令处理、数据转换、编码转换及速率适配、路由等4功能的GSM网关，通过该网关已打通电话，语音质量达到商用，具有重要的实际应用价值。

Design and implementation of GSM gateway based on Femto framework

There are many users in GSM network.The introduction of Femto framework into GSM access network fits the trend of flattening development of mobile communication network.GSM gateway based on Femto architecture is studied in the paper.The GSM gateway is taken as a interface of client data accessing core network to merge the mobile,broadband and fixed communication business together,and plays an important role in GSM network.IP load mode is adopted in the design.It makes the interface of Abis full IP.Based on Femto framework,the GSM gateway the the functions of signaling processing,data conversion and code conversion,coding rate adaptation and routing was implemented on the ATCA platform by means of the modular design method.A phone call has passed through the gateway and its voice quality has reached commercial standard.It has an important practical value.