影响运营商选择技术体制的关键因素很多,首先是政策管制,即各国的牌照发放方式。3G牌照发放有频率捆绑技术体制方式和只发频率牌照方式,即所谓的强制性方式和自选方式。当然,牌照发放还有全国性牌照、区域性牌照、网络牌照和运营牌照等。其次,是技术本身的升级能力及所 There are many key factors that affect the operator’s choice of technical system. The first is policy control, that is, the way in which countries issue licenses. The issuance of 3G licenses has a frequency-bound technology system and a license-only frequency license, which is the so-called compulsory and optional mode. Of course, there are national licenses issued licenses, regional licenses, network licenses and operating licenses. Second, the upgrading capability of the technology itself