多谢分享,收益了。
在此地顺便问一下,在inter-SGSN的SRNS Relocation Procedure中,new SGSN需要发送Update PDP Context request给GGSN以更新用户位置信息。如23.060 在6.9.2.2.1 SRNS Relocation Procedure的描述:
If the SRNS Relocation is an inter-SGSN SRNS relocation or if Direct Tunnel was established in intra-SGSN SRNS relocation, the new SGSN sends Update PDP Context Request messages (new SGSN Address, SGSN Tunnel Endpoint Identifier, QoS Negotiated, Negotiated Evolved ARP, serving network identity, CGI/SAI, RAT type, MS Info Change Reporting support indication, NRSN, DTI, max MBR/APN-AMBR) to the GGSNs concerned.