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电信手机为什么比移动和联通的贵
更新时间: 2020-10-04 00:00:00  

因为电信的手机是CDMA制式的,专利在高通公司手上,正规生产的CDMA手机每部都要给高通公司交专利授权费,而移动和联通的制式不存在这个问题,因此成本也会低些。CDMA、CDMA2000制式是美国高通公司研发的,电信每年要交大把专利费。

关键词: 电信 手机 为什么 移动 联通

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