世界范围内有140多万个基台，而且随着引进第三代技术，数量正在显著增多。

Over 1.4 million base stations exist worldwide and the number is increasing significantly with the introduction of third generation technology.

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第三代：改善目标技术

Third Generation: Improving Targeting Techniques

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MUOS利用第三代宽带码分多址蜂窝电话技术实现地面部分。

MUOS leverages third generation (3G) Wideband Code Division Multiple Access (WCDMA) cellular phone technology in the implementation of the ground segment.

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