From the base station the signal is sent to the controller looking like this.

信号从基站发送到控制中心是这样的。

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Mobile communication system, controller, base station and communication method.

移动通信系统，控制器，基站，和通信方法。

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Mobile communication system, controller, base station and communication method.

移动通信系统，控制器，基站，和通信方法。

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