WDM technology is a method for increasing the transmission capacity of optical fiber, but the transmission performance in WDM system with high speed and long distance is limited.

波分复用(WDM)技术是增大光纤传输容量的方法，但是在高速率、长距离wdm系统中传输性能受到限制。

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As high speed optical transmission technology and intelligent optical networking technology gradually become mature, modern communication network is developing toward high speed and broad bandwidth.

随着高速光传输技术和智能光网络技术的不断成熟，现代通信网正朝着高速化和宽带化的方向演变。

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Photon switching technology is a fundamental solution to the speed unmatch between optical fibre system with high transmission speed and electronic switching system with slow switching speed.

光子交换技术是解决高速的光纤传输系统和低速的电子交换系统之间速度失配的根本措施。

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The cellular telecommunications industry is entering a period of transition from aging, analog-era transmission technology to high-speed "third-generation" (3G) mobile networks.

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Once commercialized, 5G mobile communications technology will be capable of ultra-high-speed data transmission up to several hundred times faster than even the 4G LTE-Advanced technology due for launch later this year.

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Now EDGE's successor, a 3G-wireless technology called HSDPA (High-Speed Download Packet Access), provides transmission rates of 400 to 700 kilobits per second.

ECONOMIST: The competition this time will be a lot stiffer