Research On Networking Technical Scheme Selection Of H Urban Optical Access Network

With the development of new business and new technology,China Unicom’s two core business is the mobile and broadband services.The fixed telephone service due to the impact of the mobile phone business,ownership declined year by year,and the fixed telephone service on the contrary,broadband business has become a major force in the fixed network business development,has become the main contribution of Chinese Unicom business revenue growth.But with the development of mobile phone 3G,4G service,network construction more perfect,the rapid development of mobile networks and broadband network,to maintain rapid and coordinated development of the two major business,and promote the sustained growth of broadband Internet business is Chinese Unicom keep ahead in the market competition,the inevitable choice to grow.The VOD service,IPTV interactive TV,4K HD as the representative of the business needs of high bandwidth business will be rapid development,the individual needs of users continue to emerge,the increasing demand for network bandwidth shortage problem,access network has become the principal contradiction between operators and users.How to make use of the existing resources to transform the broadband network access capability has become an urgent problem to be solved.This article from the actual situation of A broadband access network transformation of the city,from the analysis of the current user demand for high-speed broadband,combined with the needs of market competition ability and the analysis of the existing network,puts forward the necessity of upgrading the access network construction.By contrast,the three access network technology of the network,the final choice of optical access network technology as a A access network construction technology.Introduces the technology of optical fiber access network construction scheme of PON+LAN,PON+AD three and FTTH,and the comparison of the three network construction investment cost and construction period are obtained for different customer needs to adopt appropriate scheme for the construction of the advantages of.The related technology of optical fiber access network has matured,but how to use thelimited resources to access network optimization,how to reduce the cycle of construction,how to reduce the investment cost of operators,how to meet a series of problems the broadband user needs,the author is thinking deeply in practice in the process of the problem.This paper summarizes the following aspects:(1)Discusses the status quo and broadband network of China Unicom access network construction background and H City use,combined with the national broadband speed,lower fees policy requirements,discusses the necessity of upgrading the city A network of Chinaunicom.(2)A brief overview of the three kinds of access network technology(digital subscriber line,optical fiber,coaxial hybrid network access),the safety performance of advanced analysis and PON network of PON technology analysis,selected optical access network technology as H City’s broadband access network transformation technology.FTTH network,PON+LAN,PON+AD,which is suitable for the construction of H City,is summarized,which provides the technical basis for the construction of A optical access network in.(3)The three factors that influence the construction of optical access network are introduced in detail,including the construction cost of optical access network,the construction cycle of optical access network,and the customer demand of H City.(4)Through the analysis of the construction cost of the three technical schemes,the construction cycle analysis,the comparison of the user requirements and the technical scheme,a theoretical basis for the selection of the technical scheme is finally obtainedThis paper not only can provide the basis for the construction of A optical access network,but also can provide the theoretical basis and practical experience for the upgrading of urban access network similar to the A urban environment.