as the digital times is coming, many function of the former analog trunked system can't satisfy the demand of people, it is necessary for us to research our own digital trunked system.
随着数字时代的到来,原有的模拟集群的许多功能已经不能满足人们的需求,研制我们自己的数字集群系统是非常必要的。
the latest generation of the digital trunked system tetra, which is defined by the european telecommunications standards institute (etsi), is one of the most advanced mobile communication systems.
etsi发布的欧洲新一代全数字集群系统tetra是当今最先进的移动通信系统之一。
therefore, it is very necessary to develop tetra digital trunked system with our own independent intellectual property right.
因此,开发我国自主知识产权的tetra数字集群系统具有重要意义。