They go by various names — cellular telephone, cell phone, mobile, wireless, handy — and an estimated four billion people use them worldwide.
他们有着各种各样的名字——移动电话，电话，手机，无线电话，便携式电话——估计世界上40亿的人们在使用它们。
Ericsson has unveiled the first cellular phone headset, which connects to mobile phones via a Bluetooth technology-based wireless radio link instead of a cable.
爱立信公司发布了第一个移动电话头套，它通过一个基于蓝牙技术的无线发送连接装置而不是一根线与移动电话相连。
Product categories include: Cellular, PCS, paging, specialized mobile radio, satellite, wireless data transmission and fixed wireless services.
产品包括：蜂窝，传呼，专业移动广播设备，无线数据传输及固定无线服务等。
When the downlink beam forming is applied in the wireless cellular network, the signals received by all mobile users must reach the provided signal to interference plus noise ratio.
在无线蜂窝系统中，当采用下行波束赋形技术时，所有用户所接收到的信号必须满足给定的信噪干扰比。
When the downlink beam forming is applied in the wireless cellular network, the signals received by all mobile users must reach the provided signal to interference plus noise ratio.
在无线蜂窝系统中，当采用下行波束赋形技术时，所有用户所接收到的信号必须满足给定的信噪干扰比。
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