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Ma Ju: coaxial cable two-way broadband access technology - two-way transformation, broadband, radio and television - broadcasting industry
States SARFT Broadcasting President Ma Ju Institute of Science
One, needs analysis First talk about the basic situation, the national TV ownership in more than 500 million units, Cable television 150 million net users, 47 million digital subscribers, so of cable television Digital Is very important. For the development of cable networks have a lot of technology solutions at the same time, there are more and more enterprises and research institutions concerned about the cable network in the next step in development.
2, Current Status and Strategies Here a few examples, are now commonly used in cable TV network transformation of some programs, with more than HomePlugBPL, HomePlugAV, Wi-Fi Down, HomePNA, CableModem, baseband EOC. Existence of these programs are reasonable, whether the future will be, it does not.
First, what we really dominant network, short board what I understand, the last of the cables wired network can not give up, regardless of how stress is that this is the natural Broadband . Physical bandwidth of more than one G, digital bandwidth of at least 7 G, the bandwidth of the future should not be lightly discarded, I would like to give up the radio and television is like our brother unit, competitors, Cooperation Partners the same thing was dry. Therefore, for the coaxial cable is concerned, CableModem use the high availability of the technology is mature product technology. Although not very popular in China CableModem has institutional, political reasons, but regardless of how stress, CableModem Shanghai and other cities in the success of this is to choose a major two-way network transformation program.
Second, MOCA, is indeed becoming more and more widely applied, but for us in terms of whether the direct reference to China over? For example, the bandwidth is appropriate and whether it meets our requirements, these are open to question and research. Apart from fiber to the home, the cable television network for the election is now the major energy CableModem. Now many domestic enterprises EUC approach is proposed based on the access program, we Canton ASTRI 6 years of the program is to put forward their own high-performance broadband network HiNOC system. Now, I will design ideas to share with you, please correct me criticism.
3, HiNOC systems technology programs and features
First of all, there are several design points, the first design point is the people what kind of business? That is, the final one meter or 10 meters how much bandwidth needs to be able to meet the needs of people and long-term future. After our analysis, that indeed provided to the people HD , SD, broadband Internet access and possible voice service such as VoIP, triple play should be a one-stop service. We believe that there should be some bandwidth threshold, so we design is to based on 30M, 40M start, which is exclusive of bandwidth.
Second, we want to design a long-term future with the application of the network. There are many companies that are brothers and make their own programs, we are thinking. Administration issued a White Paper, we have carefully analyzed, followed by two days before the meeting was amended. Meets the needs of the next generation, but also, and many of the businesses to communicate, communicate, so the concept of design in addition to bandwidth and business relationship, need to consider is the system architecture and network architecture. We call the proposed contents of the IP-based architecture, making our application on the IP-layer, IP should be placed on our physical layer, which is our original intention and concept design.
Frequency characteristics of coaxial cable
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