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针对移动通信网络数据业务急速增长带来的频谱资源紧张和系统能耗增加的问题,超蜂窝网络架构通过控制覆盖和业务覆盖的适度分离,引入基站的动态休眠和资源调度,从而大幅度提高网络的频谱效率和能量效率.但如何在不破坏用户终端协议栈的前提下实现蜂窝网络控制覆盖和业务覆盖的分离,是需要解决的问题.本文分析了GSM系统和LTE系统的主要信令流程及协议架构,提出了相应的超蜂窝网络设计方案,核心思路都是通过逻辑信道的划分实现基站功能的分离,进而实现控制覆盖和业务覆盖的分离.借助软件无线电设备,搭建了超蜂窝网络实验平台,对上述分离方案进行了初步的验证.本文还结合云计算技术和软件定义网络技术,设计了软件定义超蜂窝架构,并搭建了相应的云化超蜂窝网络演示平台.
Aiming at the problem of spectrum resource shortage and system energy consumption caused by the rapid growth of data traffic in mobile communication network, the ultra-cellular network architecture introduces the dynamic dormancy and resource scheduling of base stations by controlling the coverage and moderate separation of service coverage, thereby greatly improving the network Of spectrum efficiency and energy efficiency.But how to realize the separation of control coverage and service coverage of cellular network under the premise of not destroying the user terminal protocol stack is a problem to be solved.This paper analyzes the main signaling flow of GSM system and LTE system and Protocol architecture, the corresponding super cellular network design is proposed, the core idea is to separate the base station functions through the division of logical channels, and then realize the separation of control coverage and service coverage. With the help of software radio equipment, an experimental platform of the ultra-cellular network , A preliminary verification of the above separation scheme was carried out.With the help of cloud computing technology and software defined network technology, a software-defined hyper-cellular architecture was designed and a corresponding demonstration platform of cloud-based ultra-cellular network was established.