GSM-R网络中Abis接口信令解码与应用

Analysis and Application of Abis Interface Signaling Decoding in GSM-R Network

接口的信令信息可以全面反映全网的通信状况,包括无线部分和有线部分的网络情况,在Abis接口对网络进行监测有其独特优势。分析了GSM-R网络中Abis接口信令的帧结构,包括2层的LAPD层结构和3层的BTSM层结构,并结合信令各层结构对信令解码的流程进行了说明,概要介绍了Abis接口信令解码在GSMR网络监测上的应用。工程实践证明解码所得数据正确,是无线网络监测的有效手段,可以对GSM-R网络的优化提供有效参考,具有相当的实际工程价值。

The communication status of whole network is shown by Abis interface signaling information, which includes the status of the wireless and wired network, the network monitoring has its unique advantage at Abis interface. The paper analyzes the frame structure of the Abis interface signaling in GSM-R network, describes the procedure of decoding the original signal data, and finally introduces some applications in GSM-R network monitoring. The Abis interface signaling decoding is an effective method for wireless network monitoring and the decoded data is correct as demonstrated by practical engineering, and it＇s of practical engineering value.