How to design an efficient transmission system according to the asymmetry of uplink and downlink has become a key issue in future mobile communications systems.

如何针对上、下行链路的非对称特性设计高效的传输系统已经成为未来移动通信系统的一个关键问题。

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They are used with fielded mobile communications systems during high mobility operations.

该套装置可用于高移动作战的战场移动通信系统。

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Mobile station, equipment for connection to mobile station, switching systems in mobile communications systems and mobile communications systems.

移动通信系统中的移动站，连接到移动站的设备，交换系统，以及移动通信系统。

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Employing approximately 164, 600 people in 179 offices across 61 countries, the company consists of seven independently operated business units: Visual Display, Mobile Communications, Telecommunication Systems, Digital Appliances, IT Solutions, Semiconductor and LCD.

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Employing approximately 188, 000 people in 185 offices across 65 countries, the company consists of eight independently operated business units: Visual Display, Mobile Communications, Telecommunication Systems, Digital Appliances, IT Solutions, Digital Imaging, Semiconductor and LCD.

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Employing approximately 174, 000 people in 193 offices across 66 countries, the company consists of eight independently operated business units: Visual Display, Mobile Communications, Telecommunication Systems, Digital Appliances, IT Solutions, Digital Imaging, Semiconductor and LCD.

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