基于SDN的移动性管理机制探讨

Exploration of SDN-Based Mobility Management Mechanism

移动性管理是移动通信中一个非常重要的关键技术。在充分研究现有移动性管理技术和SDN创新架构的基础上,提出了一个基于SDN的移动性管理机制探讨方案,给出了架构示意图,详细分析了切换过程中的信令流程。本方案无需建立隧道,能有效解决现有移动性管理方案中GTP头开销大、信令增多、不支持无缝切换及路由效率低下等问题,符合未来网络架构发展的趋势。

Mobility management is a key technology in the mobile communication network. On the basis of analyzing the current mobility management technologies and researching SDN, an SDN-based mobility management mechanism without tunnel was presented, which was applicable to solve the existing issues such as GTP overheads, increasing signal, non-seamless handover, and low routing efficient, and was in line with the future network trend as well. The architecture of this proposal was depicted, and the signal procedure was minutely dissected.