首先分析由LTE网络特征引出的对承载网络的需求,接着重点研究分析了PTN+CE和PTN核心层支持L3-VPN功能两种PTN承载LTE技术方案,最后依托中国移动上海公司的PIN核心层支持L3-VPN验证方案和验证结果,探讨了该方案实际满足LTE承载的可行性.%This article first analyzes the demand of LTE-backhaul network, and focuses on two main solutions: PTN + CE, PTN L3-VPN, then based on the PTN L3-VPN verification solution and result leading by China Mobile Group Shanghai Co., Ltd., discusses the possibility of PTN L3-VPN meeting the demand of LTE-backhaul.
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