LTE-U is a radio access technology that has been proposed for providing carrier-grade wireless service in the unlicensed band. This article firstly researched the key technologies of LTE-U

secondly analyzed the influence of LTE-U on network planning from spectrum utilization

carrier aggregation schemes

network deployment

and interference avoidance. And then this article put for ward instructive strategies of LTE-U network planning aiming to improve the network quality and construction efficiency of LTE for CMCC.