應(yīng)用場景的增多、數(shù)據(jù)流量的爆炸性增長呼喚高帶寬和大容量的“智慧”網(wǎng)絡(luò)" title="網(wǎng)絡(luò)">網(wǎng)絡(luò)；“智慧”的網(wǎng)絡(luò)還能幫助轉(zhuǎn)型" title="轉(zhuǎn)型">轉(zhuǎn)型道路上的電信" title="電信">電信運(yùn)營商" title="運(yùn)營商">運(yùn)營商提高網(wǎng)絡(luò)價(jià)值和市場競爭力。如何賦予網(wǎng)絡(luò)一個(gè)“智慧”的頭腦？光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" 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title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)" title="光網(wǎng)絡(luò)">光網(wǎng)絡(luò)領(lǐng)域目前取得了哪些突破？未來寬帶" title="寬帶">寬帶網(wǎng)絡(luò)將呈現(xiàn)出怎樣的發(fā)展趨勢？通信設(shè)備制造企業(yè)又在如何進(jìn)行努力和嘗試？請關(guān)注本版的報(bào)道。

    互聯(lián)網(wǎng)" title="互聯(lián)網(wǎng)">互聯(lián)網(wǎng)應(yīng)用的流量驅(qū)使，智慧城市的漸行漸近，三網(wǎng)融合" title="三網(wǎng)融合">三網(wǎng)融合的步伐加快……應(yīng)用場景的不斷增多呼喚更加智慧的網(wǎng)絡(luò)。同時(shí)，正在探尋轉(zhuǎn)型之路的電信運(yùn)營商需要為安全的增值業(yè)務(wù)打好基礎(chǔ)，讓網(wǎng)絡(luò)更有價(jià)值。那么，如何用“智慧”武裝“管道”以提升網(wǎng)絡(luò)價(jià)值？光網(wǎng)絡(luò)相關(guān)技術(shù)取得了怎樣的進(jìn)展？其發(fā)展還受到哪些因素的制約？在2011年中國光網(wǎng)絡(luò)研討會上，這些都成為專家熱議的話題。

    光網(wǎng)建設(shè)目標(biāo)指向“智能管道”

    電信運(yùn)營商的優(yōu)勢在網(wǎng)絡(luò)，而在目前的網(wǎng)絡(luò)上，用戶無法獲得他們所期望的所有服務(wù)，運(yùn)營商也因此無法賣出合理的價(jià)格。“智慧管道是一個(gè)極好的概念，它將引導(dǎo)電信企業(yè)轉(zhuǎn)型的方向，一旦智慧管道成功實(shí)施，電信企業(yè)將會走出目前的困境。”工信部電信研究院科技委主任蔣林濤給出了這樣的觀點(diǎn)。中國電信集團(tuán)科技委主任韋樂平也表示，我國光纖寬帶建設(shè)將以“智能管道”為目標(biāo)。

    蔣林濤認(rèn)為，“智慧管道”中的“智慧”是要知道“管道”的能力和“管道”的資源使用情況，“管道”的性能和安全能力，能以最合理、最佳的方式使用“管道”，讓運(yùn)營者以最合理的資源和資源利用率獲得最高的回報(bào)，并讓用戶以最合理的價(jià)格獲得最好的體驗(yàn)，

    中興通訊固網(wǎng)市場總監(jiān)楊列永也表示，面對用戶業(yè)務(wù)需求不斷細(xì)分、用戶體驗(yàn)需求不斷提升的互聯(lián)網(wǎng)時(shí)代，電信運(yùn)營商需要更加智能地運(yùn)營管道，通過通信管道技術(shù)應(yīng)用，提升運(yùn)營商競爭力，創(chuàng)造出新的價(jià)值模式。

    對于其商業(yè)價(jià)值，蔣林濤指出，“智慧管道”符合高端客戶補(bǔ)貼低端客戶的基本商業(yè)原則，即向高端用戶提供高端服務(wù)，收取高費(fèi)用；對低端用戶提供一般服務(wù)，相應(yīng)收取更低的費(fèi)用，實(shí)現(xiàn)高端客戶補(bǔ)貼低端客戶的良性商業(yè)模式。

    無源光網(wǎng)絡(luò)“越走越寬”

    “智慧管道”向我們展示了一幅光纖寬帶的美好圖景，推進(jìn)這個(gè)概念落地的，則是光網(wǎng)絡(luò)技術(shù)和市場的不斷成熟。

    韋樂平介紹，最新的測試結(jié)果表明，10GEPON設(shè)備已經(jīng)成熟，已經(jīng)具備互通性，可以在FTTB應(yīng)用場景下商用并且具有成本優(yōu)勢。而PON的技術(shù)不僅是向10GPON演進(jìn)，40G/100GPON也在快速推進(jìn)。據(jù)介紹，100G PON在技術(shù)上已經(jīng)有了較大的進(jìn)展，基于相干檢測和接收的DP-QPSK技術(shù)的突破，以及56Gbps速率的ADC突破，促使真正的單頻100G系統(tǒng)可用。他預(yù)計(jì)，100G PON技術(shù)將在2013年成熟，在2015年實(shí)現(xiàn)規(guī)模應(yīng)用。

    此外，“智慧管道”的建設(shè)也是一個(gè)融合的過程。工信部電信研究院通信標(biāo)準(zhǔn)化研究所副所長敖立指出，未來寬帶的發(fā)展趨勢是固定網(wǎng)、移動網(wǎng)、互聯(lián)網(wǎng)和通信技術(shù)的融合。在接入層面，把無線局域網(wǎng)（WLAN）技術(shù)、數(shù)字用戶線（DSL）技術(shù)、PON為代表的光纖接入技術(shù)的組合應(yīng)用于不同場景，隨時(shí)隨地的接入需求推動各種接入技術(shù)互補(bǔ)融合發(fā)展。

    成本降低驅(qū)動“光進(jìn)銅退”

    對于“智慧管道”的接入，韋樂平認(rèn)為FTTH將成為主導(dǎo)接入模式。統(tǒng)計(jì)數(shù)據(jù)顯示，2010年年底，F(xiàn)TTH在低密度用戶區(qū)的新建成本約為210美元/戶，這個(gè)數(shù)字在高密度用戶區(qū)中約為180美元/戶，考慮到實(shí)裝率因素，F(xiàn)TTH投資已經(jīng)與FTTB相當(dāng)。

    盡管如此，韋樂平指出，成本問題仍是FTTH發(fā)展的掣肘。目前有源設(shè)備投入約占FTTH總成本的49%，無源設(shè)備約占23.8%，施工約占27.2%。要大規(guī)模推廣FTTH，就需要繼續(xù)降低成本，成本的降低將有利于推進(jìn)光進(jìn)銅退。他表示，成本下降的目標(biāo)是爭取上述三者各占三分之一，其中有源設(shè)備成本最好能在現(xiàn)有基礎(chǔ)上降50%，同時(shí)，也希望100GPON成本降至10GPON成本的五分之一，即每比特成本降低40%~50%。