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American telecoms A breath of fresh airwavesyou want 美国电信 呼吸新鲜的电波 The scramble for spectrum could reshape America s telecoms industry 频谱争夺战可能打开美国电信新局面 JULIUS GENACHOWSKI, the head of America s Federal Communications Commission ,has called wireless spectrum the oxygen that sustains our mobile devices . 美联邦通讯委员会主席JULIUS GENACHOWSKI，将无线通讯频段称为 维持移动通讯设备工作的氧气 ， Yet unlike oxygen, the airwaves over which telecoms companies transmit their wirelesssignals are in ever shorter supply. 但与氧气不同的是，如今电信公司用来传输无线讯号的波段比以往更加短缺。 According to the FCC s calculations, America needs to make 300 megahertz ofadditional spectrum available by 2014 to avoid a crunch that drives up consumers mobile-phone bills and holds back innovation. 据委员会估计，为免移动电话用户账单攀升，创新停滞不前，引发 频谱危机 ，到2014年美国需要新增300兆赫兹频段投入使用。 Some critics reckon the regulator s projections are too pessimistic. 有的评论家认为委员会的预测太过悲观， But telecoms firms say an explosion of wireless data triggered by smartphones and tabletcomputers is indeed soaking up capacity fast. Hence the scramble for more airwaves. | 
