FTTH is the development direction of the optical access network

Triple play will lead to rapid growth in customer demand, will bring more business. High-definition video and high-speed broadband services desire to 100Mbit / s of bandwidth for each household 100 Mbit / s FTTH technology needs, coverage of up to 60 km, only FTTH can meet the "triple play" long-term development. Therefore, access to telecommunications and broadcasting networks the basic idea is similar to the target of convergence, and ultimatelyachieved at the access level based on FTTH triple play. The development of the telecommunications access network follow the light back into the copper → → FTTHbroadband technology road speed, radio and television to follow the development of two-wayaccess network transformation of light into the copper → → FTTH technical route.


Radio and television in the implementation of triple play in the process, the transformation of the access network can be divided into the following three steps: the use of FTTB + EoC / FTTB + LAN network overlay network change the way; using optical integration, optical into the "copper"back of the net change way; using optical extension, FTTH network the mode is the perfectfusion. The specific technology solutions mainly in the following ways: CMTS + ODN + Cable Modem program, the program can continue the evolution of the HFC network routes; xPON (FTTH / FTTB) + ODN + EoC of the program, active by EoC , can be subdivided into passiveMoCA, HomePNA, HomePlug, WiFi over Coax EoC and HiNOC variety of technical solutions; xPON + ODN + LAN solution, which is subject to re-laying of a cable households; CMTS + ODN + EoC + Cable Modem mixed solution.


Difference between broadcasting and telecommunications access network mainly in three aspects. (1) differences in the business: Telecom's IPTV video services mainly the form ofmulticast and IPTV on-demand, broadcast video services mainly for digital TV broadcastingand VOD forms. (2) technical differences: in the video transmission, the main use of multicasttechnology, telecommunications, broadcasting mainly digital broadcast technology; in network coverage patterns, fiber-optic-based telecommunications, broadcasting to the main coaxial cable; degree in IP-based , pure IP-based telecommunication access technologies, IP-basedradio access technology for the part. (3) management differences: the telecommunications and broadcasting in resource management systems, user provisioning and fault repair areinstitutional differences.