这些频道能让移动通信运营商用一个发射台就可以覆盖多达10倍于使用现有频率的发射台的地区。
They will allow mobile carriers to cover, from a single tower, up to ten times the area possible from a tower using existing frequencies.
而移动电话运营商则在花费巨资为高速接入提升自己的网络——并在寻求新的通信频率。
And mobile operators are spending huge sums to upgrade their networks for high-speed access—and are looking for new sources of traffic for them.
在无线移动通信中，接收机的本地振荡频率和载波频率之间往往存在较大的频率偏差，AFC用于克服此频偏。
In wireless communication system, there is a large frequency bias between carrier frequency and local oscillating frequency. AFC is contributed to eliminate it.
高数据传输速率以及终端的高速移动，导致无线通信信道具有时间选择性与频率选择性两个特征。
High data transmission rates and high mobility give rise to time - and frequency - selectivity in wireless communication channels.
移动节点使用其中的一个频率作为中继来实现它和SBS2之间的初始通信。
One of its frequencies is used by the MN as a relay to implement its initial communication with SBS2.
智能天线技术为解决频率资源不足、提高移动通信系统容量和系统服务质量提供了一个有效的解决途径。
The smart antenna technology is an effective solution to take good use of the frequency sources and to promote the capacity and the service quality of the communication system.
本发明提出了一种频率资源的分配方法、设备、无线通信系统和移动站。
The invention discloses a frequency resource allocation method, a device, a wireless communication system and a mobile station.
本文首先讨论了移动通信信道的各种参数对信道估计的影响，介绍了频率选择性信道的抽头延迟线模型和分集接收技术，在此基础上阐述了RAKE接收机的原理。
The tapped delay model of the multi-path frequency selective fading channels as well as the diversity receiver technique is introduced, and the principles of RAKE receiver are described.
在新一代移动通信系统中，频率选择性信道是系统所要面对的一个关键问题。
Frequency selective channel is one of the important problems in new generation mobile communications, and equalization technologies are applied to combat the influence of this channel.
CD MA通信系统由于具有容量大、软容量、软切换、频率利用率高、抗多径衰落能力强等优点而在第三代移动通信系统(3 G)中得到广泛应用。
The advantages of CDMA communication system in 3g are large capacity, soft capacity, soft handover, higher spectral efficiency and the ability to resist the effects of multi-path fading, and so on.
CD MA通信系统由于具有容量大、软容量、软切换、频率利用率高、抗多径衰落能力强等优点而在第三代移动通信系统(3 G)中得到广泛应用。
The advantages of CDMA communication system in 3g are large capacity, soft capacity, soft handover, higher spectral efficiency and the ability to resist the effects of multi-path fading, and so on.
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