Page 267 - 5G Basics - Core Network Aspects

Core network aspects 1

Appendix II

Mapping of baseline to 3GPP EPC/IMS
(This appendix does not form an integral part of this Recommendation.)

Figure II.1 provides a reference architecture based on 3GPP EPC and IMS and shows how some of the MC-
ARCH FEs would map to potential technical solutions.

Applications Applications

Multi-connection
application support function SCC AS*

Multi-connection Service control function Multi-connection P/S/I-CSCF
control function control function
Multi-connection
Multi-connection media function SPR/HSS PCEF*
user profile

Multi-connection Transport function PCRF* Transport function
policy control FE
Access control . . . Access control SGW/PDN . . .
function 1 function n ANDSF* GW ePDG
Multi-connection
coordination FE
Access . . . Access . . . WLAN
Multi-connection network 1 network n eNodeB
registration FE
MUE UE*
Multi-connection Y.2027(12)_FII.1
terminal control FE
Signal enhanced
In MC Other

Figure II.1 – Mapping of baseline to 3GPP EPC/IMS

The figure on the left is the multi-connection general architecture and the other one is evolved 3GPP EPC and
IMS architecture. The functions marked with a star "*" refer to enhancement requirements in specific
network elements, for instance, UE* would be upgraded into MUE.

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