The problem with the IPTV DCATV the technical problem that is similar to the way regulation is fairness. As cable TV, danbake ‘the license’ rivals emerged as a powerful communication companies in the IPTV business, technology, regulations receive less relative to the subject is very seems unfair haehal. Total cable television (SO) project formally began in 1995, until now, many people can affect a lot of ‘broadcasting service’ to the regulations, which has been high technology for cable TV service, the government of the same camp and regulations that discriminated against them away, it is a point in arguing that such claims. IPTV IPTV technology ordinance is enacted recently published after the operator selection of a biased and to show that IPTV can do. Operators to be interpreted as 10 minutes notice is considering the technology. Note that currently have approximately one million subscribers have digital cable TV, only to be enacted in 2002, was published in 2003, and up to this standard, all operators are eolmaeyeo.
Cable, IPTV bonttan
Discriminatory restrictions by the cable TV operators pointing symptoms typical cases recently released SK Broadband ‘DIBA’ (DOCSIS IPTV Bypass Architecture, daksiseu IPTV transmission system) is. In short, the digital cable TV transmission system DIBA could be part of the transformation. Gwangdongchukhonhapmang mainly used for cable TV (HFC) based on daksiseu (DOCSIS: Data Over Cable Service Interface Specification) cable TV modem technology standard by applying a real-time information and on-demand television service is to implement. In other words, SK broadband technology, the U.S. cable TV industry standardization and certification body Cable Labs (cablelabs) daksiseu technology applied by the broadcasting service keyibeulmang (HFC) for subscribers using the service to single-family homes made of , communications company that the IPTV business license for cable television service, as interpreted by the cable TV industry is dangyeonjisa banbalhan can be said. However, if daksi only on the cable TV operators bangsongbeop allowed only if it is not technology, with technology issues is not a big walgawalbuhal. However, the cable TV and cable TV technology will be the same business, the intent might have known from the beginning of the business area of government ought to IPTV operators of cable TV operators should have been limited to the side that the cable said. It’s about the right thing to hear, the problem is the policy of the Broadcasting Communication’s’ logic more than anything to be influenced greatly by considering ‘seems unfair, but I can not help it, some experts at the end of the inevitable is over my head nodding.
If so, the technical interoperability DCATV and IPTV will be collecting?
A university to be familiar with all the way “technology is about the differences between the operators, consumers or cable TV for the way that IP is not the way this matter,” the “After 5-10 years of digital cable TV and IPTV technology distinction will disappear, “he said. In this context, not separate them without the DCATV and IPTV, combining the two, like the United States MVPD (Multichannel Video Program Distribution) to refer to is more appropriate. However, if someone said this, he pyeonda ‘cable side’s’ done a misunderstanding’ concerns is to buy. ‘Dichotomy regulatory structure, I think the reality of the glass in the camp for IPTV is a new business.
But, apart from the friction of the camp of each business, and technology does not distinguish between IPTV already DCATV and flexible enough to apply to both sides and that is the reality.
SK broadband ‘DIBA’, and HFC-based pawokom DIBA also similar to the review of the service, known as a center, cable TV lines, and SDV (Switched Digital Video), collectively known as a digital video transmission technology using real-time and on-demand implementation of the broadcast, but here in part on IP (Internet Protocaol) of the signal processing is considering borrowing.
Cross the intersection of technology acceptance
In fact, ‘IPTV’ share of the IP is not that big. Technical examination of the conceptual definition IPTV set forth in the IP ‘OSI (Open Systems Interconnection) model of the three-tier (wokeucheung net) to the Protocol, rules for the control of the transmission path of the packet, only one. Two-way communication features of the cantonal 7 vertical hierarchy, the so-called ‘OSI 7-tier model, the network layer in the IP (network layer) is related to one of several communication protocols. IPTV in the ‘IP’ technology is more important than the ‘TV’ is about technology. IPTV does not mean TV already, but not TV, IP TV, the TV is not.
A stable of large number of video content to provide TV services to subscribers to the limits of the transmission bandwidth will always budakchigi. And soon the cost of bandwidth, the bandwidth is used yeohahi the most important technical element in a truly multi-channel broadcasting services can not.
This multi-channel services as a high priority in the SDV, bandwidth-saving, is the effect of. Broadcasting services to all of the traditional broadcast channels, every songchuldan (head-end Headend) subscribers in the households of a receiver (STB) is the assumption that the transfer. For example, a 50 channel service operators, the city is not all the channels. Channel 50 viewers of a channel of choice sikinde, in a situation like this 49-channel ‘bisicheong’ as to the status of the viewers when a people based on only 2% of bandwidth utilization . Cable television service in the most expensive ‘last one mile (last 1mile)’ of the network efficiency is much less talk.
SDV the high popularity ratings of the conventional broadcast channels all the way down to send a signal, a signal biingi order channel viewers watch only a limited bandwidth of an open channel to improve the utilization of the transmission mechanism is developed.
SDV, when you apply for cable TV, a comprehensive cable television operators (SO) of the head-end (of all channels to broadcast a TV program the device) in the so-called ‘distribution hub’ (Distribution Hub) to install the device, the device the request of the audience (request) is received by assigning the frequency channel for a temporary transfer to reaching the so-called ‘switching’ function to perform to increase dramatically the number of available channels to SDV is one. If so, logically, the availability of cable TV frequency band (analog 54 ~ 552MHz, Digital 552 ~ 864MHz) chaeneolsu in fact, can provide can extend to infinity. ‘Infinite channel of the IPTV channel’999′ offensive in the face of a cable TV operator can be a big weapon. IPTV because of the aggressive propaganda offensive to 100 channels of IPTV, cable TV, Channel 10 to be recognized in, IPTV, and can deliver the same number of channels with the technical possibilities that will be effective marketing tools . Regarding this, Motorola, bikbendeu, Cisco Systems, hamonik equipment and solutions, such as real-time viewing of their channels and to manage bandwidth by separating the channels biingi SDV technology and equipment are provided for operators.
In addition to enhancing the utilization of SDV bandwidth on-demand video is based on technology developed by. Upstream (uplink) between (5.75 ~ 41.75MHz) should use the frequency of taking orders, down to every customer shall not use the section to a specific program to transfer VOD (Video on Demand) to the SDV by the transfer of technology to be implemented effectively can be.
About 3 years ago, the cable TV industry SDV is actively reviewing the viewers (STB) and business (head-end) in the coming two-way communication between the signaling protocols of the IP is also being reviewed. As with the IPTV DCATV ‘viewers -> operators of the upstream sector and the general use of the Internet network operators, but a limited way to connect to the server goes, as the IP protocol, a two-way communication is useful if, as broadcasters and broadcasting law is no, why not use it.
Legislation needs to discuss integration
The cable industry, broadband and IPTV eopgyegan debate of the SK ‘DIBA’ the network (HFC), modem (daksiseu), modulation (QAM) and all the infrastructure and technology, the same applies to cable TV and IPTV and the important ‘TV service you want to resolve the most cost-effective if one can see the attempt, cable TV lines, the’ interactive TV ‘in solving the existing two-way communication technology, and is considering writing bring. I broadcast the campaign in the one-way broadcast technology, communications lines, as in the two-way communication technology baljeonhaeon, the two technologies together is obvious that even the most.
Cable TV and IPTV, from the perspective was different from the first time, the two services again to talk about convergence of the technology itself is a must. However, the service legally and the reality of the premises and clearly separated, and emphasis on efficiency and the development of applied technology, if given the direction of, cable TV and IPTV convergence of the technical differences due to mutual destruction would eventually be held jimjakke . If there is a technical difference, it’s a business, not on the preferred technical, legal status (a comprehensive multimedia cable broadcasters and Internet service providers) can not see the difference between, and then integrated across the cable and IPTV to the law from now it’s time to worry I wonder.
