The Upgrade Of Cable Access Network Under New Situation

With 4K Ultra HD, 3D, somatosensory game of high bandwidth business needs more and more vigorous, increasingly high proportion of 100 m users / Gigabit user, and capacity of existing network bandwidth has been unable to fully support the demand for high bandwidth services development. Therefore, the enhancement of high bandwidth network capacity has become an urgent demand. So this situation need to existing mainstream PON access network system for speed raising reconstruction, through prospective study of cable broadband access network reconstruction scheme, to solve the explosive growth of the demand for high bandwidth with the existing network capability between the increasingly prominent contradiction, for the future of cable broadband access network construction and retrofit of provides scientific and practical advice.This paper firstly introduces the main broadband access technology and the evolution process, and analyzes the speed demand of the main access technology scene.. Accelerate the transformation of network influence factors are researched, including all aspects of equipment at office end ODN network user terminal, from the analysis of the investment, the construction is difficult easy degree, equipment performance and maturity, the original ODN network influence. Through the different scenarios of various speed plan for a detailed comparison and analysis, and finally the scene of the network speed improvement program.