超高密度无线网络的自组织技术

Self-organizing techniques in ultra-dense wireless network

网络密集化是应对未来5G无线网络容量提升1 000倍挑战的主要手段之一,且超高密度网络中单节点要配置和优化的参数超过2 000个,因此,只有通过新一代自组织技术来感知网络运行的态势,自主发现和调配网络资源来精准匹配网络中的业务流,才能有效提高网络的承载能力。分析了超高密度网络自组织技术面临的挑战和呈现的新属性,给出了超高密度网络中自组织技术的2个典型用例,展望了超高密度无线网络中自组织技术的发展前景和方向。

Network densification was one of the main ways to deal with the challenge of supporting 1 000 times higher capacity in 5G networks. Wherein, a single node needs to configure and optimize more than 2 000 parameters. Therefore, novel self-organizing network（SON） would be the inevitable technique for wireless networking, where decision makers were enabled with the ability of perceiving the dynamic network situation and meanwhile, autonomously discovering as well as configuring network resources. With the aid of this promising technique, users＇ demands and network resources could be well matched and furthermore, the capacity of networks could be significantly improved. The trend of dense development in wireless communications was discussed. Then, the potential challenges and required new properties was analyzed when utilizing SON in ultra-dense wireless networks. Meanwhile, two typical use cases were depicted. Finally, for future ultra-densely deployed wireless networks, the possible development prospect and direction of SON were briefly presented.