标准化研究进展及长期演进策略

Small Cell Standardization Research Progress and Long-term Evolution Strategy

介绍Small Cell全球市场快速发展趋势,总结Small Cell类型及部署场景的发展趋势。介绍3GPP从R8起开始Small Cell相关标准化制定工作,特别在R12阶段,Small Cell标准课题在物理层关键技术和高层网络架构有突破性研究进展。物理层关键技术主要包括Small Cell物理层频谱效率增强、关断及发现技术、基于空口的同步方案;而高层网络架构主要研究用户面与控制面分离的候选架构。最后,展望Small Cell技术演进和网络部署前景,提出中国联通LIGHT-Net研究计划,加快宏微协同组网方案的应用部署。

The latest global market development and the trends of multi-types and scenarios deployment of smal cel s are briefly intro-duced. Since R8, 3GPP has finalized several releases related with smal cel issues. There are important research results on both physical layer key technologies and high layer architectures within Release 12 framework. The physical layer key technolo-gies include spectrum efficiency enhancement of high order modulation, smal cel on/off and efficient discovery mechanisms, radio-interface based synchronization mechanisms. On the high layer architectures, it studies the control plane and user plane splitting solutions and candidate architectures. Final y, based on the prospects of smal cel key technologies evolution and net-work deployment, the new study on LIGHT-Net of China Unicom is proposed to accelerate the deployment of Macro smal cel coordination network.