Ultra Dense Network:Challenges,Enabling Technologies and New Trends  

作　　者：HAO Peng YAN Xiao Yu-Ngok Ruyue YUAN Yifei 

机构地区：[1]ZTE Corporation Shenzhen,China

出　　处：《China Communications》2016年第2期30-40,共11页中国通信（英文版）

摘　　要：5G sets an ambitious goal of increasing the capacity per area of current 4G network by 1000 fold. Due to the high splitting gain of dense small cells, ultra dense network(UDN) is widely considered as a key component in achieving this goal. In this paper, we outline the main challenges that come with dense cell deployment, including interference, mobility, power consumption and backhaul. Technologies designed to tackle these challenges in long term evolution system(LTE) and their deficiencies in UDN context are also analyzed. To combat these challenges more efficiently, a series of technologies are introduced along with some of our initial research results. Moreover, the trends of user-centric and peer-to-peer design in UDN are also elaborated.5G sets an ambitious goal of increasing the capacity per area of current 4G network by 1000 fold. Due to the high splitting gain of dense small cells, ultra dense network （UDN） is widely considered as a key component in achieving this goal. In this paper, we outline the main challenges that come with dense cell deployment, including interference, mobility, power consumption and backhaul. Technologies designed to tackle these challenges in long term evolution system （LTE） and their deficiencies in UDN context are also analyzed. To combat these challenges more efficiently, a series of technologies are introduced along with some of our initial research results. Moreover, the trends of user-centric and peer-to-peer design in UDN are also elaborated.

关 键 词：5G ultra dense network cellvirtualization virtual receiver self-backhaul user-centric access 

分 类 号：TN929.5[电子电信—通信与信息系统]