摘要
GPON(吉比特无源光网络)的宽带接入方式,是目前实现语音、数据和视频三网合一的理想方式。文章提出了一种基于PAS7401V的ONU(光网络单元)语音、数据和视频业务接入实现方法,其中,语音采用VoIP(IP网络上传送话音)方案,能够确保电话业务的服务质量,且电话业务接口的技术性能指标满足相关规范要求;数据支持10/100/1 000 Mbit/s以太网接入;视频也采用以太网方式传输。重点阐述了基于PAS7401V的ONU的软硬件设计方法;对ONU系统的吞吐量、过载丢包率和转发延时等特性进行了测试,验证了设计方案的正确性;电话接口的性能测试结果表明,所提方案在GPON中运行良好。
At the present, Gigabit Passive Optical Network （GPON）broadband access is an ideal approach to tri-network （voice, video and high-speed data） convergence or triple play. This paper presents a PAS7401V-based Optical Network Unit （ONU） voice, data and video service access implementation method. In this method, voice aecess is implemented by using Voice over Internet Packet （VolP） scheme, which ensures the QoS of voice transmission and the service interface conform to the relevant performance requirements; data is accessed over the 10/100/1 000 Mbit/s Ethernet, so is video. It focuses on the design of PAS7401V-based ONU software and hardware and tests the system throughout, packet loss rate and forwarding la- tency in ONU systems, verifying the correctness of the design scheme, and voice interface performance test results indicate that the proposed scheme runs well on GPON.
出处
《光通信研究》
北大核心
2015年第3期32-34,共3页
Study on Optical Communications
基金
重庆市科委资助项目(cstc2013yykfc4003)
