首先对DMR集群系统的空中接口、服务、网络规划与管理以及编号等规范进行详细说明,并从DMR集群整体系统设计的层面对其进行简要分析,指出在网络规划和管理中应该着重注意的问题。
This paper introduces the air interface, services, network planning and management, numbering system and etc. of DMR trunking systems. Then a brief analysis on design of DMR trunking systems is presented. Moreover, some key problems in network planning and management are listed and analyzed.