The DS/CDMA digital mobile communication system is based on Spread-spectrum technique and CDMA technique.

扩频技术在码分多址通信中的应用产生了DS/CDMA数字蜂窝移动通信系统。

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In the digital mobile communication, with the effect of modulation, transmission channels and demodulation, the received signal ineluctably has some distortion.

在移动通信系统中，信号经过调制发射、信道传输和接收解调的过程中，不可避免的会引入一些干扰，使得有用信号受到影响。

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Introduce the technology of cell broadcast service in the GSM digital mobile communication system as well as its service application and future development prospect.

介绍在数字移动通信中小区广播业务的技术实现原理，业务种类及发展前景。

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Over the past few years, social media channels have become an important part of the mix, too, and consumers increasingly depend on a wide variety of digital platforms (including mobile) for communication, information, entertainment and shopping.

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They want to utilize digital information anytime and anywhere, and mobile is quickly becoming the first choice for internet access and communication.

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