LTE时代光缆承载网建设策略研究.pdf

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5、对LTE的技术特点和网络架构进行分析，包括OFDM（OrthogonalFrequencyDivisionMultiplexing，正交频分复用技术）、MIMO（Multiple-InputMultiple-Output，多输入多输出）、载波聚合等核心技术，室外宏站与室内微站覆盖距离和数量等等，在此基础上，探讨现有光缆网络可能面临的影响；2、通过对电信、移动和联通三大运营商光缆网发展现状的分析，提出面对LTE技术平滑接入需要考虑的问题；3、分析主干光缆、接入光缆的组网优化和接入方案，总结出光缆网在面对多种LTE覆盖环境时可选的优化思路和方案。直观来看，本

6、文可以为电信、移动和联通等主要电信运营商提供建设参考。关键词:长期演进技术，承载网，主干光缆网，配线光缆网，网络方案IAbstractThemobileoperatorsarefacedwithnewchallengesowingtotheevolutionofmobilecommunicationstechnologyandtheemergenceofLTE(LongTermEvolution).Asthebasestationsanddataservicesbearedintegratedplatform,Basicopticalnetworkhas

7、beeninthespotlightfromthemajormobileoperatorsoncoveringscale,transmissioncapacity,security,robustness,advanced,applicabilityandotheraspectsofthecapability.WhenLTEtechnologyhasbeeninlarge-scaleusing,becauseofitstechnicalcharacteristics,thebasicopticalnetworkofthemajormobileoperato

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