【導(dǎo)讀】當(dāng)今，全球無(wú)線通信產(chǎn)業(yè)的兩個(gè)突出特點(diǎn)體現(xiàn)在：一是公眾移動(dòng)通信保持增長(zhǎng)態(tài)勢(shì)，一些國(guó)家和地區(qū)增勢(shì)強(qiáng)勁，但存在發(fā)展不均衡的現(xiàn)象；二是寬帶無(wú)線通信技術(shù)熱點(diǎn)不斷，盡管全球移動(dòng)市場(chǎng)在增長(zhǎng)，但這種增長(zhǎng)也呈現(xiàn)出很大的不均衡性。技術(shù)、WIMAX技術(shù)、UWB技術(shù)等等，呈現(xiàn)百花齊放的局面。目前，第三代移動(dòng)通信3G格外引人矚目，成為無(wú)線通信產(chǎn)業(yè)的最大熱點(diǎn)。主體標(biāo)準(zhǔn)已經(jīng)定型，具備了規(guī)模商用的基礎(chǔ)。其次，目前歐美等運(yùn)營(yíng)商已經(jīng)進(jìn)入了3G網(wǎng)絡(luò)部署階段。再次，我國(guó)3G處在黎明的前夕。我國(guó)對(duì)3G一直采取積極穩(wěn)健的態(tài)度，目前，我國(guó)。正在進(jìn)行第二階段的網(wǎng)絡(luò)技術(shù)試驗(yàn)，或稱外場(chǎng)測(cè)試。的無(wú)限期推遲，也暴露出一些問(wèn)題。策略，還存在封閉性的問(wèn)題，這也是其受到國(guó)際社會(huì)普遍攻擊的重要原因。WIMAX相對(duì)于WI－FI的優(yōu)勢(shì)主要體現(xiàn)在WI－FI解決的是無(wú)線局域網(wǎng)的接入問(wèn)題，有專家認(rèn)為，WIMAX的覆蓋范圍和傳輸速度將對(duì)3G構(gòu)成威。力的限制，WIMAX不大可能殺死3G。

　　

【正文】 speed, low cost, low power dissipation characteristics significantly. 3 The trend grasp: Access multiple works and Represent a prehensive layout direction More on the current hot field of wireless munications and focus the issues described and discussed. So, are we going to grasp the development trend of the midWireless Future? First, the field of wireless munications technologies plements each other more and more clearcut. This was reflected in the different access technologies with different coverage, the application of different regions, different technical characteristics, solve the access speed 3G mobile WAN seamless roaming coverage, and strong demand. WLAN solve the distance over which highspeed data access, and proximity to achieve ultra highspeed UWB wireless access. Therefore, in a policy, we should promote the integrated development of various wireless accesses, a work promoting the integration process, diversification of the 15 means of access through the work to achieve coverage of the needs of different user groups. Achieve market segmentation and business diversification, the development of mobile munications to resolve the situation is not balanced. Secondly, the government should give more enterprise wireless frequency distribution of resources promoting different technology in the planning and application of frequency spectrum. This will be conducive to the development of enterprises of different strategies and different market needs, Comprehensive planning its own wireless munications work, the effective allocation and use of resources. Third, the public mobile munication work development, China has bee a global 3G mobile works evolution of the process. From the experience of developed countries in Europe and the United States, because of its high peration rate of mobile voice users. Users achieve growth through the development of the model has bee a part of history. Therefore, they expect to build greater operational 3G platform, a new source of profit. Due to the maturity of 3G technology, the deployment of 3G mercial works has started on a global scale. For our part, and learn from the experience of Europe and the United States, slow growth in the number of users, it should be brought forward in fostering the development of new mobile market. Fourth, broadband wireless access technology, the world is very exciting development in the field. Developments in the field have shown a high bandwidth, rapid progress, and gradually expand the coverage of the trend. Future in the field of new technologies may emerge stronger from another angle to play a role in the entire wireless munications industry. But recently, the development of broadband wireless access technology should have a rational attitude and scientific grasp. The current fixed broadband wireless access technology environment focused on the highspeed access. Its ability to support mobile voice and mobile munication works and the public can not resist. Fifth, what should be the future of wireless munication works? Experts believe that the future of wireless munications work will be a prehensive integration solution. From largescale public mobile munications, 3G or super 3G technology will be dominant。 thereby creating a wide range of seamless global coverage。 and WLAN, WIMAX, UWB and other broadband access technologies will be different because of their technical characteristics, coverage or application in different areas, to create an effective and plementary public mobile munication work. 4 Conclusions As wireless mobile munications work bandwidth demand and lack of work bandwidth. users demand imbalance in the geographical distribution and the use of different technical strengths and weaknesses and contradictions in the coexistence of contradictions, it determined that the need for the development of the wireless munication work using various technical means, from the overall and longterm perspective, integrated planning and the idea to build a work. Play different technical character, prehensive layout, and different regions, different groups of users and business demands for bandwidth, Wireless munications work to reach the overall advantages and prehensive ability. In this regard, my government departments should also actively spectrum for the operators with adequate resources。 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。s neighborhood is authorized, without increasing the port, but also able to share the inter. 2 WIFI development in the future These two y