| With the development of communication technology, data services have become an important profit point of growth in both the fixed-line Internet business and3G networks for the communication operator enterprises. The high bandwidth and stability networks meet higher demands according to the services. Along with the integration of fixed and shifting network business and the co-located building of fixed and shifting network nodes, the construction of the access network will inevitably towards the goal of overall carrying capacity. Therefore, it is significantly important that the access network should be transformed into integrated and comprehensive carrier transmission network by communications operators.Through the comparison of MSTP, PTN and IPRAN on their core technology, the QOS, business management, network stability and so on, IPRAN technology is the most suitable for the future development of integrated business carrying. In the paper, IPRAN technology has been analyzed in the service carrying, network protection, network management and scheduling, the characteristics of QOS and the obtained application data from the real network. The analyses indicate that IPRAN is a suitable technology of service carrying network for Shanghai Unicom in the future. IPRAN integrated carrying network is with a series of two, three solutions for carrying high-quality2G/3G/LTE and other mobile services, the support of IPTV, special telephone line, high-speed Internet access and other FMC service bearers; to offer differentiation service assurance for different users and business so as to help operators realize the the E2E fine operations; to meet the needs of cloudbearing, the IPv6and internet of things and etc. In order to build a mature, easy-to-use, low-operating costs for future-oriented bearer network, IPRAN integrated carrying network will be the optimization technology to build the next generation of integrated-service bearer network by the operators. |
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