【正文】 provide strong support for integrated planning and protection. In short, wireless munications mediumterm trend for the future development of 16 wireless technologies plement each other: the development of the best in people, access to diversification, Network integration and application of integrated broadband wireless works, broadband fixed work and the progressive realization of the anic and financial. 外文資料原文之二 WiFi application and its development 1 WiFi works method General set up wireless work basic is equipped with wireless work card and a AP, so that they can be in a wireless mode, with the existing cable structure to share cyber source, installation cost and plexity is much lower than the traditional wired works. If only a few puter work, also can not AP, only need to each puter equipped with a wireless work card. AP AccessPoint, generally translated as wireless access node, or bridge. It is mainly in the media access control layer MAC plays wireless workstation and wired LAN bridge. With AP, like Hub general cable work, wireless station can be quickly and easily connected with work. Especially for the use of broad band, WiFi has more advantages, wired broadband work ( ADSL, district LAN ) door hind, connected to a AP, then in the puter to install a wireless work card. Ordinary family has a AP is enough, even a user39。 thereby creating a wide range of seamless global coverage。S main advantages pared WIFI reflected in the solution is the WLAN access problem, and WIMAX is a wireless MAN solution to the problem. WIFI only signals transmission of Inter connectivity in remote areas to 300 feet. WIMAX is able to transmit signals 31 miles distant. WIFI work connection speed of 54 megabits per second and 70 megabits per second for WIMAX. Some experts believe that WIMAX and 3G coverage and transmission speed would pose a threat. Cost advantages in all aspects of the industry will make WIMAX technology as a break in the pattern of industrial technology. For WIMAX technology, I think it has tremendous potential, but is still in the initial stage, it has been difficult for the current pattern of global wireless munications have a significant impact. Since the implementation of 3G, WIMAX is likely to bee the means of future 3G works. Their are identities in the field of highspeed information access. But with their limited mobility and the ability to support voice, WIMAX and 3G are unlikely to kill. UltraWideband UWB Wireless Access Technology In addition to the active performance of wireless technologies in the field of new technologies continue to emerge, but also in continuing to expand its transmission capacity. In recent years, a superhighspeed wireless access by everyone39。 the terminal has yet to emerge. In China, the government will consider the grasp of market petition, involving payment of a few 3G work licenses, the same time, and Domestic equipment will also consider the issue. These problems have been considered to be of secondary importance contradictions, at present, the most important thing is to choose the right time to expedite the building of the 3G work platform. This is the key to resolving conflicts and guides the link above. Fixed Wireless Access application MMDS broadband fixed wireless access technology. Work in the band wireless Broadband Wireless Access Technology. The third installment of the frequency selection of fixed broadband wireless access in our country. So MMDS technology application in China to further expand, this has also enabled fixed wireless access technology to bee one of the hot industry. The now focus on the promotion of technology, the operating experience of the operation, If independent MMDS technology to operate as an independent work, because of its technology, users scale and frequency bandwidth limitations, the more difficult to make profits. Therefore, we should further relax vision and extend it to more areas of application. For instance, some operators now can be considered as adopted, as a mobile base station loops. For the GHz MMDS technology, we must actively promote the application of integrated services, for example, the data valueadded business development and operations. From the overall perspective, it can bee an effective means of mobile munication works. This maximized the efficiency of GHz band. Ahead, with the 3G technology in the business, a mobile work is expected to bee an important means of access. 3G works also play a role in supporting the structures. Controversial issue of the WLAN standard As a new technology in recent years, the rapid development of WLAN in Europe and the United States and other countries. In the past two years has been courted by several major operators. WAPI standard and the dispute began last year to attract the attention of a global vision. I believe that dispute has arisen WAPI standard, in addition to countries, motivated by their own information security considerations, hope to grow our wireless munications equipment manufacturers, eager to occupy the market and emerging technologies are also important factors. However, the indefinite postponement of the standard, we have discovered some problems. That is, the core of our wireless technology, and still lags far behind international standards. Also difficult to shake the mainstream of the international technology group. Meanwhile, the development strategy of China39。 It should be said that there are still some problems in 3G。 Between different 3G technology, technical interference between 2G and 3G, coexistence。 In Asia, Africa and other regions, particularly in developing countries such as China, the rapid growth in the number of mobile users. From the value created by users, the ARPU far exceeded the newly developed European countries. Data from the growth of