标准简介
This part of standard GB/T 20851 specifies the main parameters,information frame,the establishment and revocation of the private communication link,Medium Access Control (MAC) sublayer and Logical Link Control (LLC) sublayer of the data link layer in Dedicated Short Range Communication (DSRC) used in Electronic Toll Collection (ETC) system. This part is applicable to ETC system for highway and Electronic Charging System for urban roads,and also can be refered for Automatic Vehicle Identification(AVI),vehicle entry and exit management and other fields.英文名称：Electronic toll collection—Dedicated short range communication—Part 2:Data link layer
标准状态：现行
替代情况：替代GB/T 20851.2-2007
中标分类：电子元器件与信息技术>>信息处理技术>>L79计算机开放与系统互连
ICS分类：信息技术、办公机械设备>>开放系统互连(OSI)>>35.100.20数据链路层
发布部门：Issued by .
发布日期：2019-05-10
实施日期：2019-12-01
出版日期：2020-04-01
页数：44页
前言
计算机开放与系统互连相关标准
