摘要
随着LTE的普及,世界迎来LTE应用的浪潮。LTE因其提高了频谱效率、架构扁平和低时延设计等特点,给用户带来了更好的体验。同时,随着LTE的变革,在LTE承载网的设计中也出现了多样的规划方案。因此,做好LTE承载网网络规划设计,建设一个大带宽、低成本、可扩容的LTE传输承载网是至关重要。本文针对LTE网络架构特点及承载需求,对现有的面向LTE的承载网络进行了对比及分析。结合具体设备提供商,并考虑网络性能、业务承载需求、投资成本、功耗等多方面因素,提出了LTE承载网的目标架构,给出了一种PTN、IP-RAN融合的的承载网技术解决方案。
With the popularity of LTE, the world ushered in the wave of LTE applications. LTE has a fl at structure and a low latency features. LTE improves spectrum effi ciency, gives users a better experience. Meanwhile, with the change of LTE, the LTE bearer network design also appeared in a variety of planning. Thus, it is essential to build a high-bandwidth, low-cost, extensible LTE bearer network. According to LTE network architecture characteristics and bearing demand, the paper compared and analyzed the available bearer network for LTE. With specifi c equipment provider and consider network performance, service bearing demand, investment cost, power consumption and other factors, this paper proposes a target framework LTE bearer network, presents a PTN-IP-RAN bearer network technology solutions.
