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目前3G、移动互联网以及全IP趋势的发展都对移动回传的承载和传送网络提出更高的要求,IP化的业务呈现出带宽突发性、很高的峰均值比等特点,传统基于电路交换的MSTP传送网以刚性管道为特点,不能很好地满足这些分组业务的传送需求,如何构建一个能承载多种新旧业务、易于扩展、可靠且低OPEX和CAPEX的移动回传网是电信运营商要认真考虑的问题。分析移动回传网在传送和承载等方面的新需求,并通过对移动回传网络技术的比较和技术演进的讨论,提供相关设备研发、网络规划及运营商一些参考方向。
At present, the development of 3G, mobile Internet and all-IP trends all place higher demands on the bearer and transport networks of the mobile backhaul. The IP-based services exhibit features such as sudden bandwidth and high peak-to-average ratio. The traditional circuit- The switching MSTP transport network is characterized by rigid pipes, which can not meet the delivery requirements of these packet services well. How to build a mobile backhaul network that can support multiple types of old and new services and is easy to expand, reliable, and low in OPEX and CAPEX is a telecom operation Business seriously consider the issue. It analyzes the new requirements of mobile backhaul network in terms of transmission and bearer, and provides some reference directions for equipment R & D, network planning and operators through the comparison of mobile backhaul network technologies and the discussion of technology evolution.