Install electromechanical, analog and digital trunking systems, circuits and equipment in telecommunications central offices and switching centres.
在电信中心办公室和交换中心安装工机电，模拟和数字集群系统，电路和设备。
Terminal based on TETRA digital trunking mobile communication system could send and receive status and short data service message, and achieve navigation and location through short data service.
基于TETRA数字集群移动通信系统开发的TETRA终端，通过数据业务可以发送和接收状态消息和短数据业务消息，利用短数据业务完成终端导航定位功能。
A kind of modified packet reservation random access protocol for digital trunking systems is studied, which could reduce collisions among packet reservations and increase the system's throughout.
针对数字集群移动通信系统，提出一种新的随机预约控制方式，减小了预约分组信号冲突发生，提高了系统的吞吐量。
On the basis of market forecast results, the paper marks out Chongqing digital trunking mobile communication networks.
根据市场预测的结果，论文对重庆市数字集群移动通信网络进行了具体规划设计。
Following rapid development of TETRA digital trunking technology, dramatically increased professional users begin to utilize TETRA mobile communication products.
伴随着TETRA数字集群技术的飞速发展，越来越多的专业用户开始使用TETRA制式的移动通信产品。
Have experience in aviation or digital trunking special priority.
具备航空或数字集群经验者以特别优秀考虑。
Based on the CDMA2000 1X terminal tetechnology, this paper analyzes and designs the key digital trunking technology and protocols, and make deep research on the terminal digital trunking tetechnology.
本文以CDMA20001X终端技术为基础，对数字集群关键技术和协议进行分析和设计，对终端的集群实现进行了深入研究。
In this article, it introduces the network management technology and the design of Digital Trunking MSC network management Software that base on the SNMP protocol.
本文简要介绍了网络管理技术，提出了一种基于简单网络管理协议的数字集群移动交换中心网络管理软件的设计与构架方案。
In this article, it introduces the network management technology and the design of Digital Trunking MSC network management Software that base on the SNMP protocol.
本文简要介绍了网络管理技术，提出了一种基于简单网络管理协议的数字集群移动交换中心网络管理软件的设计与构架方案。
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