Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Sh interface based on the Diameter protocol; Protocol details (V14.2.0; 3GPP TS 29.329 version 14.2.0 Release 14)
The present document defines a transport protocol for use in the IP multimedia (IM) Core Network (CN) subsystem based on the Diameter base protocol as specified in IETF RFC 6733 [15]. The present document is applicable to: - The Sh interface between an AS and the HSS. - The Sh interface between an SCS and the HSS. Whenever it is possible this document specifies the requirements for this protocol by reference to specifications produced by the IETF within the scope of Diameter base protocol as specified in IETF RFC 6733 [15]. Where this is not possible@ extensions to the Diameter base protocol as specified in IETF RFC 6733 [15] are defined within this document.