TB/T 3380-2021 铁路数字移动通信系统（GSM-R）接口 Gn 接口（SGSN/GGSN 与 SGSN/GGSN 间）

TB/T 3380-2021 Railway Digital Mobile Communication System (GSM-R) Interface Gn Interface (SGSN/GGSN and SGSN/GGSN) (only provide English translation results) The GSM-R (Global System for Mobile Communications Railway) is a digital mobile communication system designed for use specifically in railway systems. It provides a wide range of communication services, including voice, data, and multimedia, to railway operators and their employees. The Gn interface is one of the interfaces between the SGSN (Serving GPRS Support Node) and the GGSN (Gateway GPRS Support Node), which are core elements