论文部分内容阅读
基于IP的软交换网络实现话音业务并能与PSTN交换网实现互联互通,关键要解决网络之间的信令互通和话音互通。现给出了一种与PSTN交换网络能够实现互通的一种媒体网关的硬件、软件和FPGA设计的实现方案介绍,该设计方案采用模块化设计,单板接口数量多,可通过控制软件灵活配置,还兼具有可扩展性。对媒体网关中FPGA的整体设计方案,以及上行数据处理和下行数据处理部分中各个模块的设计和功能进行了比较详尽的介绍,其中下行数据处理模块设计中还兼具有保证Qos的一种方法。
IP-based softswitch network to achieve voice services and PSTN switching network to achieve interoperability, the key to solve the signaling intercommunication between networks and voice interoperability. An implementation plan for hardware, software and FPGA design of a media gateway capable of realizing intercommunication with the PSTN switching network is presented. The design scheme adopts a modular design and has a large number of interface boards and can be flexibly configured by using control software , But also both scalability. The overall design of FPGA in the media gateway and the design and function of each module in the uplink data processing and downlink data processing are described in detail. The downlink data processing module design also has a method of guaranteeing Qos .