The broadband access network develops condition and main application
In fact, looking from the telecommunication development history, when the network number of users achieves certain scale. Each kind of application meets the nature production; this also is so-called steps the Cuff law might to be at especially. In the history one kind of technology since birth has not been having a big pile of application, regardless of is the mobile communication or the Internet, on its short note, the browsing, the net chats and so on the key applications all is develops certain degree after the user scale to produce naturally, but is not sedulously designs beforehand plans.
Since has entered for the 21st century, the whole world broadband access network entered the big development phase. To 2004 year's end, the total number of users already achieved 150,000,000, became in the electricity reliable historical account to develop one of quickest telecommunication services, and even was also quicker than the mobile service. For example the whole world mobile service from 10,000,000 developed to 100,000,000 has spent for 5.5 years, but the broadband access service has only used for 3.5 years. According to the IDC forecast, in 2007 the global wide band total user may achieve 209,000,000, in which 9.9, namely about 20,000,000 users for optical fiber access network.


寬帶接入網(wǎng)發(fā)展的狀況和主要應(yīng)用
事實(shí)上,從電信發(fā)展歷史看，當(dāng)網(wǎng)絡(luò)用戶數(shù)達(dá)到一定規(guī)模。各種應(yīng)用會(huì)自然產(chǎn)生，這也是所謂的邁特卡夫定律的威力所在。歷史上沒(méi)有一種技術(shù)生來(lái)就帶著一大堆應(yīng)用的，無(wú)論是移動(dòng)通信還是互聯(lián)網(wǎng)，其短信、瀏覽、網(wǎng)上聊天等關(guān)鍵應(yīng)用都是在用戶規(guī)模發(fā)展到一定程度后自然產(chǎn)生的，而不是事先刻意設(shè)計(jì)策劃出來(lái)的。
進(jìn)入21世紀(jì)以來(lái)，全球?qū)拵Ы尤刖W(wǎng)進(jìn)入了大發(fā)展階段。到2004年底,總用戶數(shù)已經(jīng)達(dá)到1.5億，成為電信史上發(fā)展最快的電信業(yè)務(wù)之一，甚至比移動(dòng)業(yè)務(wù)還快。例如全球移動(dòng)業(yè)務(wù)從1000萬(wàn)發(fā)展到1億花了5.5年，而寬帶接入業(yè)務(wù)僅用了3.5年。按照IDC的預(yù)測(cè)，2007年全球?qū)拵Э傆脩艨梢赃_(dá)到2.09億，其中9.9，即大約2000萬(wàn)用戶為光纖接入網(wǎng)。