| Access network with the user data on the network connection,is the last one kilometer of the network.Usually,it is the ability to access network selection with all the technical environment,such as optical access technology as well as too network access technology.With the strengthening of current information network,IP technology is gradually developing as a key leading technology,which has the abundant content.But,the speed of access network development is slow,which becomes a restraining factor of communication development.Based on the situation shown above,this paper focuses on improving the structure of present broadband access network so that the quality of the network can be improved and carry the development of the new techniques and service a step forward,while achieving the next generation network.This paper focuses on the Minhang District network and after the enough research and analysis,the main contents of this paper are as follows:First,introduce the improvement solutions of present Minhang District ADSL network according to three aspects,such as increasing bandwidth,the network structure and reforming equipments.Secondly,achieve the IP transformation of the present DSLAM equipments and increase the nodes of upper chain,while upgrading some important equipments of convergence layer and shorten the distance between the copper to the maximum limit,so that to improve the present network.Thirdly,based on the work above,this paper proposed the further improvement solutions of the present ADSL broadband access network,which are degrading equipments of convergence Layer,combining with the transmission network,IP connecting to upper chain and EPON reform.By the Minhang area broadband access network for the transformation,the network structure becomes more clear and reasonable,uplink bandwidth has reached a million trillion level can be opened for the public customers more than 4m broadband access,for customers to open Gigabit line network,network quality to enhance the essence.At the same time,the network is to use IP as the core,can carry a comprehensive business,access means is also more diverse and personalized,in accordance with the development trend of access network in the future,the smooth for the next generation access network upgrade to lay a good foundation. |
