Page 268 - 5G Basics - Core Network Aspects
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1                                                Core network aspects


                                                      Appendix III


                          Mapping of baseline to next generation hotspot (NGH)/IMS
                            (This appendix does not form an integral part of this Recommendation.)


            Figure III.1 provides reference architecture based on WFA/WBA Hotspot2.0 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/BRAS
                 user profile

               Multi-connection       Transport function        AAA server            Transport function
               policy control FE
                               Access control  . . .  Access control                       . . .
                                 function 1       function n    GAS server     ePDG/WLG 1       ePDG/WLG 2
               Multi-connection
               coordination FE
                                  Access   . . .   Access                                  . . .  AP2/Hotspot 2
               Multi-connection  network 1        network n                    AP1/Hotspot 1
                registration FE
                                           MUE                                             UE*
                                       Multi-connection                                            Y.2027(12)_FIII.1
                                      terminal control FE
              Signal enhanced
              In MC       Other

                                        Figure III.1 – Mapping of baseline to NGH/IMS


            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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