TD-SCDMA与GSM数据业务互操作故障点分析

Fault Analysis for Packet Service Interworking between TD-SCDMA and GSM

由于网络负荷加大,系统间的互操作不可避免。通过介绍鉴权问题导致接入失败、DNS配置和连接问题、消息中IP端口错误导致SGSN连接失败、消息单元不匹配导致数据停传、2个SGSN中APN配置问题导致PDP去激活这五种典型故障现象,对TD-SCDMA与GSM互操作过程中各个环节可能出现的故障点进行了分析论证,从而有助于从核心网的角度全面了解互操作过程中可能出现故障的原因及处理方法。

Since the network load of CMCC has increased, IRAT （Inter radio access technology） interworking is avoidable. By analyzing five typical faults including access failure caused by authentication problem, DNS configuration and connection failure, SGSN connection failure caused by IP port inside messages mismatch, data transportation failure caused by information element mismatch, and PDP deactivation caused by APN configuration failure in 2 SGSNs. this paper analyzes and demonstrates the possible faults during interworking between TD-SCDMA and GSM in order to understand the possible reason and solution during the IRAT interworking procedure from core network view.