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WiMAX broadband industry development and application of scenarios to explore_jbo
Publisheradmin Release2008-03-09 Read3806times

1, Introduction

     With the communication technology and the deployment of new business, marketing and technical interaction in the field of communications in the future some of the new features gradually appearing. On the one hand, the traditional fixed broadband access users who can not be satisfied with just family and office environment, such as the use of fixed broadband services, hoping to use mobile broadband access services. On the other hand, the traditional mobile users can not be satisfied with a simple voice, text messaging and low-speed data services, hopes to use the higher data rate of the business. The user needs to make changes in the fixed broadband access services and mobile services in the technical and operational integration on a trend of mobile broadband and mobile broadband is becoming both in the field of technology development, and complement each other and promote each other. In the area of mobile broadband, 3GPP/3GPP2 have developed 1xEV-DO, HSDPA / HSUPA, such as technical standards, the environment in the mobile broadband data transmission. In the area of mobile broadband, IEEE802 Working Group has developed a WLAN and WiMAX, and other technical specifications, along with intent to fixed, nomadic / portable and mobile evolution of such a line of the progressive realization of mobile broadband, mobile broadband IEEE802.16WiMAX is an important milestone in the To promote the mobile broadband evolution and development.

     2, WiMAX industry chain and the commercialization of the situation

     WiMAX technology is IEEE802.16 in the marketing name used, the physical layer and MAC layer technology is based on the 1EEE802.16 work group to develop wireless Metropolitan Area Network (WMAN) technology, WiMAX is IEEE802.16d / e of other technologies that . 802.16d commercial or most of the test based on the 3.5GHz frequency band, on a smaller scale. 802.16e equipment certification has not yet formally started, but a small number of large-scale operation has been started to provide commercial business enterprises, such as South Korea's SKT, the United States sprint company in 2008 began to introduce mobile WiMAX business.

     2.1WiMAX chain to the mobile WiMAX industry trend is clearly tilted

     The WiMAX industry as a whole chain of rapid growth in the past two years, WiMAX Forum, the number of members of the early 2004's from 46 to the present growth of more than 400. Of these, 35% for the business providers, system for more than 20% of manufacturers and 20% for chip manufacturers. Most of these members are very interested in mobile WiMAX. At Intel, Samsung, Motorola and other major manufacturers to the energetic efforts of the mobile WiMAX chips are basically ready for base stations and terminals are also stepping up research and development, mobile WiMAX throughout the industry chain has basically matured. By the end of 2007 certified equipment can be officially listed, it is expected that in 2008 the mobile WiMAX market will be fully activated.

     WiMAX industry from its own point of view, the world's major telecom equipment manufacturers tend to be more R & D 802.16e equipment (see Table l). In particular the domestic ZTE, Huawei, and other companies have abandoned the original basic research and development of fixed WiMAX equipment.

     2.2WiMAX industry and the commercialization of rapid

     WiMAX industry in the development and application of the market is a global leader in the United States and South Korea. In building the network, Sprint, KT and SKT have wiMAx planned deployment and operation of the network.

     (1) Sprint-Nextel is the third largest U.S. carrier and the second largest CDMA operator, plans to before 2009, in the 2.5GHz frequency band on the building of WiMAX networks, as cable and DSL competition in the wireless access means. Sprint-Nextel in 2007 to 1,000,000,000 U.S. dollars of investment, in 2008 plans to invest 15 to 20 million. Sprint-Nextel development of WiMAX, in addition to market-driven reasons, but also because the FCC on the use of frequency resources in the development of the size and volume of users on a certain request, so in the current technology under development, Sprint-Nextel is the choice of WiMAX technology The best, to some extent also the only option. As the type of terminal, network maturity restrictions, in the early or as a way to wireless access, and can not provide more than 3G systems and business applications. In 2007, Sprint will be 50 major cities in the United States in the 9-building WiMAX networks, WiMAX networks in the early construction by Samsung and Motorola to provide equipment. 2009 will be the development of l00 to 000 cities, covering l million people. The scene in the early application of portable and nomadic way mainly to support the mobility of the application will be launched in the follow-up.

     (2) The South Korean government in order to promote a new broadband wireless access technology, WiBro technology in the 2.3 - 24GHz on the distribution of the TDD spectrum, WiBro network by KT and SKT will be responsible for the building. KT is Korea's largest fixed-line operator, in 2006 began commercial WiBr0. KT in the building of WiBro, the relatively positive attitude and is currently great efforts to develop WiBro, hopes the technology into the wireless communications market. South Korea because of the very popular cable broadband, DSL and as a result wiBro competitive technology itself has very little meaning, mainly through the WiBro to enter the field of mobile communications, but in order to prevent cut-throat competition, the South Korean government has also not allowed to carry out WiBro in the VoIP business. Currently, KT's WiBro network concentrated in the central area of Seoul, by the end of 2007 covering the whole of Seoul and 5 major cities, to the end of 2008 will cover the whole of Korea. In September 2006, just over 100 the number of users, is still in the initial stages of deployment. At present, the WiBro terminal or PCMCIA card to the main business is Internet access. Application of the market as a whole is still in the exploratory stage.

     (3) SKT is South Korea's largest mobile operator. WiBr0 the development of SKT, who is currently a wait and see attitude is still the major market research and exploration stage and KTWiBro concerned about the development of KT's WiBro once well-developed network, SKT will follow up quickly. At present, SKT's WiBro in the development of the approach taken, or will be taken into WiBro and 3G networks to 3G-based network, WiBro network is located in hot spots of high-speed data coverage.

     2.3WiMAX in the process of industrialization is also facing some problems

     WiMAX in the process of industrialization of the main problems include: insufficient frequency can be used, the product has not yet matured, WiMAX networking specification to be improved, and so on.

     (1) without enough available frequencies. For fixed WiMAX, countries basically have to use the original frequency of 3.5GHz fixed wireless access network resources. The frequency of limited resources, network and application-scale scenes are also very limited. For mobile WiMAX, in order to support the mobility requirements of the need to work in lower frequency bands. At present, all equipment provided by the 2.5GHz frequency band, the band and the specific alof ITu-R remains to be further discussed. As a result, the frequency has become a key factor in the development of WiMAX.

     (2) WiMAX network specification to be improved. Since then the air IEEE802.16e standard in the El through the end of 2005, all vendors are beginning to develop in line with the IEEE802.16e air interface standards. At the same time, WiMAX Forum has also stepped up WiMAX networks related to the development of norms, but in general, the standard is also the perfect Youdaishiri.

     (3) the product has not yet matured. In regard to the maturity of equipment, WiMAX equipment is speeding up the process of maturation. In the industrialization of the global wireless communications equipment, Ericcson in addition to other equipment manufacturers in the development of WiMAX products. Samsun9 the first launch WiBro equipment. Nortel shift the focus of a comprehensive, the main push WiMAX products, as a follow-up of its flagship product strategy. Other manufacturers, including Motorola, Nokia.Alcatel, Siemens will be the future of WiMAX as part of its main product. In 2006, Intel chips can provide 802.16e version of the Demo. If the equipment provider ZTE, Huawei, and other major companies in line with the development of WiMAX standard products ASNGW and base stations. Terminal, currently available in the main type of CPE (CustomerPremiseEquipment) and PCMCIA card terminals of the main terminal of the type of follow-up will be serialized, including PCMCIA cards, CF cards, EXPRESS card, USB, desktop Modem, as well as mobile phone PDA and so on. At present, the terminals are mainly concentrated in China Taiwan, South Korea, Israel and other countries and regions. End chips, including the current INTEL, T1, and other companies are active in the development of related chips. In addition to the business of the United States, Israel's manufacturers are also related to the development of the chip.

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