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Message Sequence for UE Registration

Message Sequence for UE Registration on Circuit Switched and Packet Switched Domain 
By Zahid Ghadialy


Further Reading:

[1] 3GPP TS 25.331: RRC Protocol Specification
[2] 3GPP TS 25.413: UTRAN Iu Interface RANAP Signalling
[3] 3GPP TS 24.008: Mobile radio interface Layer 3 specifications; Core Network Protocols; Stage 3
[4] 3GPP TS 25.401: UTRAN Overall Description

[5] 3GPP TS 25.301: Radio Interface Protocol Architecture