关键词: 小蜂窝, 光学回程, 光分布网络, LTE, Q带点

Abstract:

Small cell optical backhauling brings forth new challenges and opportunities in connecting radio access to service edge.These relate in particular to macro cells and optical distribution networks,network demarcation,control and management architectures,and convergence with fixed broadband access.Demand for mobile broadband services is constantly increasing,requiring operators to provide more and more capacity from their radio access networks.LTE and small cells can offer a promising solution to provide almost unlimited coverage and capacity.However,backhaul technologies can be expensive in terms of CAPEX,and none of the traditional solutions provides the necessary combination of capacity and cost-efficiency.This paper defines a Q-band point to multipoint backhaul architecture that provides multi-gigabit capacity in a cost-effective manner.with emphasis on the architecture for future mobile backhaul and access wireless networks as proposed in the framework of the SARABAND project,offering multi-gigabit capacity in a cost-effective manner by combining point to multipoint transmissions and millimeter wave (mm-wave) technology in the Q-band.Apart from the network definition,the key type of nodes comprising the SARABAND architecture is described.

Key words: small cell;optical backhauling;optical distribution networks;LTE;Q band point