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1、10293-~~~t.1Jl~i~~~~1tN~~,~~').'ru=l·n~LJ----"--J!J~r=-l:~7---51312090412~1:21mmasl3B?.-jUiP---~--~~{~F~*Tf1J..:::t::.=-~-3iif-~J=3---StrategiesforLTEageopticalcablecarriernetworkconstructionThesisSubmittedtoNanjingUniversityofPostsandTelecommunicationsfortheDegreeofMasterofEng
2、ineeringByGuChenSupervisor:Prof.ZhangLinghuaJanuary2015*A~~m￥~~~tt~~~ft~Arr~~lli~Tillfi~~~I~&~m~~~~~ogftM~.~7~~~~~~~li~ftW~~~*·~~~~g~~~AE~~~~-~ctH{]liJf~'*~,ill~'211f7-J?JH~m~?;umFt!*~EX:Jt't:~1f;tJUB8{]￥tLQX:iiE~rmfffflJ1BSMNo~ft-~I~~~~~*M~m-~ff~W~~B~~~~WT~~~~~*~~iT~~o:<$:A￥13Li
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5、對LTE的技術特點和網(wǎng)絡架構進行分析，包括OFDM（OrthogonalFrequencyDivisionMultiplexing，正交頻分復用技術）、MIMO（Multiple-InputMultiple-Output，多輸入多輸出）、載波聚合等核心技術，室外宏站與室內(nèi)微站覆蓋距離和數(shù)量等等，在此基礎上，探討現(xiàn)有光纜網(wǎng)絡可能面臨的影響；2、通過對電信、移動和聯(lián)通三大運營商光纜網(wǎng)發(fā)展現(xiàn)狀的分析，提出面對LTE技術平滑接入需要考慮的問題；3、分析主干光纜、接入光纜的組網(wǎng)優(yōu)化和接入方案，總結出光纜網(wǎng)在面對多種LTE覆蓋環(huán)境時可選的優(yōu)化思路和方案。直觀來看，本
6、文可以為電信、移動和聯(lián)通等主要電信運營商提供建設參考。關鍵詞:長期演進技術，承載網(wǎng)，主干光纜網(wǎng)，配線光纜網(wǎng)，網(wǎng)絡方案IAbstractThemobileoperatorsarefacedwithnewchallengesowingtotheevolutionofmobilecommunicationstechnologyandtheemergenceofLTE(LongTermEvolution).Asthebasestationsanddataservicesbearedintegratedplatform,Basicopticalnetworkhas
7、beeninthespotlightfromthemajormobileoperatorsoncoveringscale,transmissioncapacity,security,robustness,advanced,applicabilityandotheraspectsofthecapability.WhenLTEtechnologyhasbeeninlarge-scaleusing,becauseofitstechnicalcharacteristics,thebasicopticalnetworkofthemajormobileoperato
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