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21世紀(jì)通信技術(shù)現(xiàn)狀分析(外文資料及中文翻譯).doc

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21世紀(jì)通信技術(shù)現(xiàn)狀分析(外文資料及中文翻譯),overall: throughout the global rapid development of high-tech, will become the telecommunications industry in the 21st century world economic locomotive, commun...
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此文檔由會(huì)員 尋找寧夏的風(fēng) 發(fā)布

Overall: throughout the global rapid development of high-tech, will become the telecommunications industry in the 21st century world economic locomotive, communication technology is undergoing hundred years not met great changes. This paper introduces the third generation mobile communication technology development present situation and the future of future mobile communication technology development trend. Along with the rapid development of mobile communications market in higher performance, users of mobile communication system raised taller requirement, want to enjoy more rich and high-speed communications business. The second generation of mobile communications operators development speed increasingly fierce easing and competition for the new growth point, through the development of data services to improve their own quality of service and business types, need 3G support. At the same time because the second generation of mobile communications radio frequency resource is nervous, already cannot satisfy long-term telecommunication demand development needs.
總括:縱觀全球迅猛發(fā)展的高科技, 電信業(yè)必將成為21 世紀(jì)世界經(jīng)濟(jì)的火車頭,通信技術(shù)正發(fā)生著百年未遇的巨大變化。本文介紹了第三代移動(dòng)通信技術(shù)的發(fā)展現(xiàn)狀,最后展望了未來移動(dòng)通信技術(shù)發(fā)展的趨勢(shì)。伴隨著移動(dòng)通信市場(chǎng)的快速發(fā)展,用戶對(duì)更高性能的移動(dòng)通信系統(tǒng)提出了更高要求,希望享受更為豐富和高速的通信業(yè)務(wù)。第二代移動(dòng)通信運(yùn)營(yíng)商發(fā)展速度趨于緩和而競(jìng)爭(zhēng)越加激烈,為尋找新的增長(zhǎng)點(diǎn),通過發(fā)展數(shù)據(jù)業(yè)務(wù)來提高自身的服務(wù)質(zhì)量和業(yè)務(wù)類型,需要3G的支持。同時(shí)由于第二代移動(dòng)通信無線頻率資源日趨緊張,已不能滿足長(zhǎng)期的通信需求發(fā)展需要。 ………………