Tech-invite 3GPPspecs Glossaries IETFRFCs Groups SIP ABNFs T_i+

full Table of Contents for TS 23.228 Word version: 16.1.0

1… 4.3… 4.13… 5… 5.4… 5.6… 5.11… 5.13… A… G… L… Q… U… Y… Z…

Y (Normative) IP-Connectivity Access Network specific concepts when using 5GS to access IMS [R15] Word-p. 323

Y.1 Mobility related concepts

Y.1.1 Procedures for P CSCF discovery Word-p. 324

Y.2 QoS related concepts

Y.2.1 Application Level Signalling for IMS

Y.2.1.0 General

Y.2.1.1 QoS Requirements for Application Level Signalling

Y.2.2 The QoS requirements for an IMS session

Y.2.2.0 General

Y.2.2.1 Relation of IMS media components and 5GS QoS flows carrying IMS media Word-p. 325

Y.2.3 Interaction between 5GS QoS and session signalling

Y.2.3.0 General

Y.2.3.1 Resource Reservation with PCF

Y.2.4 Network initiated session release - P-CSCF initiated

Y.2.4.0 General

Y.2.4.1 Network initiated session release - P-CSCF initiated

Y.3 Address and identity management concepts Word-p. 326

Y.4 IP version interworking in IMS Word-p. 327

Y.5 Usage of NAT in 5GS

Y.6 Retrieval of Network Provided Location Information in 5GS

Y.7 Geographical Identifier

Y.8 Support for Paging policy differentiation for IMS services Word-p. 328

Y.9 Support of IMS Services for roaming users

Y.9.2 Architecture without IMS-level roaming interfaces

Y.9.3 Architecture with IMS-level roaming interfaces Word-p. 329

Y.9.4 Subscription to changes in PLMN ID at IMS Initial Registration

Y.10 Support of RAN Assisted Codec Adaptation [R16] Word-p. 330

Y.11 SBI Capable HSS Discovery and Selection [R16]

Y.11.2 HSS Registration in NRF

Y.11.3 HSS Discovery and Selection via NRF

Y.11.3.1 General

Y.11.3.2 HSS Discovery Word-p. 331

Y.12 P-CSCF Registration in NRF [R16] Word-p. 332