Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Diameter-based protocols usage and recommendations in 3GPP (V11.0.0; 3GPP TR 29.909 version 11.0.0 Release 11)
The present document contains a common set of principles@ rules and recommendations across 3GPP WGs to ensure Diameter-based interfaces have the same treatment for release control and generating new applications-id. Also to address in a unified manner the use e-use of AVPs@ and other Diameter BASE (see IETF RFC 3588 [x]) related decisions. The present document covers all aspects of Diameter usage within 3GPP@ including description of the current situation of Diameter usage in different 3GPP WGs (CT3@ CT4@ SA5) in Release 6/7@ describe recommendations and conditions to re-use existing Diameter applications (3GPP or IETF application-id)@ commands@ AVPs and/or AVP values@ describe recommendations and conditions to define new Diameter applications@ commands@ AVPs and/or AVP values@ and any other related issues@ e.g. the cross-release issue@ whether to apply proposed guideline back to existing Diameter applications or not@ or only new SAE Diameter interfaces@ etc. To achieve maximum benefit from this work it is strongly recommended that all 3GPP Diameter-based protocols follow the recommendations in the present document. The present document also serves a placeholder for Diameter inter-operator considerations with brief guidelines on how to deploy realize the inter-operator Diameter-based roaming infrastructure.