Research On Packet Transport Network Technology And Its Application For LTE Bearing Networks

Since 2010,China Mobile start on five years of PTN network’s construction, now the network meets the requirements of 3G business IP data service.But with the in-depth development of the mobile Internet,mobile data service will be exploding increase.Existing mobile bearing technology will be difficult to satisfy the needs of future data service, mobile data services the demand of the market and competition is the driving force of the time division long term evolution(TD-LTE) technical generation and development.Mobile network evolution to LTE is inevitable trend,based on the new LTE technology requirements for mobile backhaul,existing PTN networking which just simply to provide L2 VPN channels is clearly can’t meet the new requirements,so the original PTN network model shows a certain limitations.This paper studied the new PTN technology which has L3 VPN function and analyzed the new demands LET for PTN network,for the bottleneck where the original network model is,put forward the thinking that smoothly evolved into PTN network needed by the future LTE network carrying and combined the mobile TD-LTE network construction projects of Maanshan,analyzed and designed the architecture model of Maanshan mobile PTN network,and based on the results of analysis and design,completed the construction and rehabilitation programs for Maanshan mobile PTN network,finally in the project successfully implementated the program for PTN network construction of LTE loadsupporting network.