Standard No.:	GB/T 34991-2017
English Name:	12.5kHz TDMA channel based professional digital trunking communication system-Technical specifications for physical layer and data link layer of air interface
Chinese Name:	基于12.5kHz信道的时分多址（TDMA）专用数字集群通信系统 空中接口物理层及数据链路层技术规范
Chinese Classification:	M36    Radio communication equipment
Professional Classification:	GB    National Standard
ICS Classification:	33.060.99 33.060.99    Other equipment for radiocommunications 33.060.99
Source Content Issued by:	AQSIQ; SAC
Issued on:	2017-11-01
Implemented on:	2018-2-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	62500 words
Translation Price(USD):	2100.0
Delivery:	via email in 1~5 business day

本标准规定了基于12.5 kHz信道的时分多址(TDMA)专用数字集群通信系统空中接口物理层及数据链路层技术规范，包括整体协议架构、调制方式、帧结构、信道编解码等内容。�
本标准适用于频率范围为30 MHz～1 GHz的基于12.5 kHz信道的时分多址(TDMA)专用数字集群通信系统（以下简称“集群系统”)。