With the development of mobile communication 2G to 3G technology evolution

the voice-centric mobile service toward the direction of both voice and data services

business development needs of new mobile Internet business and telecom operators to promote the mobile service and bearer network IPbased process.This article describes the IPRAN the background

analysis of key issues.On mainstream IPRAN technology introduction

in particular

demonstrated the technical principles and network strategy for PTN.On this basis

a full-service operation environment as a starting point

how to IP RAN bearer network architecture to build a fusion carrying mobile

video and broadband integrated services.Finally

the actual network of the telecom operators to deploy strategic plan as an example

certain described the IPRAN network deployment strategy.