Providing positioning service for mobile users is a basic function in future mobile communication systems.
为移动用户提供定位业务是今后移动通信系统必备的基本功能。
One of the main problems faced by future mobile communication systems is the rapid increase in the demand for wideband services and applications.
下一代无线通信所要面对的一个主要问题就是：对于宽带服务和应用迅速增长的需求。
The future wireless mobile communication systems are expected to provide high-rate, high-quality and efficient data transmission.
未来无线移动通信系统对数据传输速率、通信可靠性及有效性提出了更高的要求。
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