Domestic standard hard date on standard power and founded the national standard?
Industry standard is no doubt about the industry's development direction. Top to bottom of a chain will be under the guidance of this standard to make corresponding adjustments and tie, no wonder the introduction of a standard will be cautious. The introduction of each standard are extremely difficult and tortuous. Communications industry as the country's pillar industry in particular.
To the end of October, 2006 had been walking to the end, although the year-end inventory too early, but the standard is undoubtedly the communications center of attention this year, one of the terms. The industry standard in previous years The difference is that in 2006 the standard for "domestic" the word has attracted much attention.
3G standard – TD speak out
Standards in all of China, TD is undoubtedly the most beautiful one. 3G, the starting point, let it start well known, in the process of China's 3G, TD as a counterbalance in the other two external standard domestic standards, occupies a very important position.
1995 until the spring to be named SCDMA, in 1997 passed the state appraisal. Is this year, the International Telecommunication Union (ITU) issued a solicitation letter to the world, collecting third-generation mobile communication technology (3G), China wants to make a difference in mobile communications, this is undoubtedly a great opportunity. Since then, TD-SCDMA although immature, but still represents China's 3G technology, known in the international community. In 1999, TD joined 3GPP and 3GPP2 standardization of these two organizations, along break through the barrier. Finally, in the May 2000 plenary session of the ITU in Turkey, China Datang Group (the former Ministry of Information Industry and Technology Research Institute, Zhou Huan chairman), submitted on behalf of the Chinese government's TD-SCDMA technology systems, has been adopted as an international three-vote One major 3G standard, and the European WCDMA and American CDMA2000 tie. Foreign exclaimed, "The Chinese government took away a golden goose lay eggs."
Recognized as an international standard, is clearly not the end of TD, the industrialization of the storm has just begun. TD-SCDMA this horse 'dark horse' have enabled a large communications company felt the foreign threat as never before. In order to China's future 3G market to get more benefits, they launched a large-scale TD-SCDMA suppression. The industrialization of TD once in trouble for various reasons. Until the fall of 2002, MII announced the TDD spectrum planning our 3G, TD-SCDMA standard for the division of a total of 155MHz of the non-symmetric band. Substantial government support, making the dawn of TD-SCDMA can be reproduced.
2003 TD year is a year of rapid development of industrial alliances, the end of Motorola, Nortel Networks, Siemens and other foreign well-known operators, handset manufacturers, equipment manufacturers have become members of TD Technology Forum, which indicates that the telecommunications industry abroad a good demonstration to the 3G giant. In 2004, TD further speed up the progress of industrialization. TD-SCDMA mobile phones in the world's first, the Beijing-Shanghai TD-SCDMAMTNET field trial network, self-developed 3G mobile core chips come out one after another.
2005 6 30 , TD-SCDMA industrialization of the last special test test tasks completed on schedule, the official authority of the State Department announced the test results: TD-SCDMA is fully equipped with large-scale network capacity, TD-SCDMA technology performance and operational value, withstood the test of authority of the State sector; in 2006, TD-SCDMA trial-scale network applications are also getting better.
Despite the rain the way, but now we still can see the runway on the 3G TD sprint in the Chinese look like. Question has never stopped, but in any case, TD is China's own standards, the process of 3G around the world, it's made in China the right to occupy a place in English.
IPTV AVS field Network TV is an emerging area of research and industry. ITU this purpose the development of relevant international standards. Independently developed by the China Audio and Video Coding Standard AVS, is a set of systems, video, audio, media rights management, including a complete standard system, with current international standards for audio and video codecs two series MPEG-2 , MPEG-4 and H.264 compare the technical aspects of the most advanced in the major technical indicators?? coding efficiency, AVS is the MPEG-2 more than twice.
2006 7 months, the country concerned is in Geneva to convene the first meeting of the ITU IPTV formal standard application. ITU by more than two months after the review was on Sept. 12 to the AVS Working Group sent a formal document, agreed to AVS as its a.4 a.5 cooperation and organization, which means that AVS has become ITUIPTV candidate standard.
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