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从2009年1月7日工信部向中国移动、中国电信和中国联通发放3张3G牌照到2013年12月4日工信部向三大运营商发放TD-LTE 4G牌照,其间间隔了近五年,但此后仅半年多时间,工信部又发放了首批虚拟运营商牌照,并批准中国电信、中国联通分别在16个城市开展两种4G制式TD-LTE和LTE FDD混合组网试验,还表示条件成熟后将发放LTE FDD牌照。牌照发放历来被看作是通信行业的标志性事件,但如此密集地发放牌照前所未有。这至少表明了三点:一是表明集成电路、光电子、存储、显示、无线和软件等信息技术发
From January 7, 2009 Ministry of Industry and Information Technology issued 3 3G licenses to China Mobile, China Telecom and China Unicom By December 4, 2013, the Ministry of Industry and Information Technology issued TD-LTE 4G licenses to the three major carriers at intervals of nearly five years. However, Since then, the Ministry of Industry and Information Technology has issued the first batch of virtual operators’ licenses and approved the trial of China Telecom and China Unicom in two 4G-type hybrid TD-LTE and LTE FDD networks in 16 cities respectively. It also said that after the conditions are ripe LTE FDD license will be issued. Licensing has historically been seen as a landmark event in the communications industry, but it is unprecedented in such a dense license plate. This at least shows three points: First, it shows that the development of information technology such as integrated circuits, optoelectronics, storage, display, wireless and software