Content for TR 24.890 Word version: 16.0.0
12 5G System core network impact on services, network functions and capabilities
12.1 Specific services
12.2 Access control
12.3 Security
12.4 Quality of service (QoS)
12.5 IM CN subsystem
12.6 Network sharing
12.7 Congestion and overload control
12.8 Charging
12.9 Mission critical services
13 Network slicing
13.1 General
13.2 Mobility management aspects
13.3 Session management aspects
14 Conclusions and recommendations
A Impacts to specifications
B Proposed changes to 3GPP TS 23.040
C Proposed changes to 3GPP TS 24.011
D Proposed changes to 3GPP TS 24.301
E Proposed changes to 3GPP TS 24.007
F Proposed changes to 3GPP TS 24.008
$ Change history
12 5G System core network impact on services, network functions and capabilities p. 231
12.1 Specific services p. 231
12.1.1 Public warning system p. 231
12.1.1.1 General p. 231
12.1.1.2 Architecture alternative 1: Supporting PWS in 5GS via Service based Interface p. 231
12.1.1.2.1 Overview p. 231
12.1.1.2.2 Architecture description p. 231
12.1.1.2.2.1 PWS architecture p. 231
12.1.1.2.2.2 AMF functionality p. 232
12.1.1.2.2.3 CBCF functionality p. 232
12.1.1.2.2.4 NG-RAN functionality p. 232
12.1.1.2.3 Protocol Stack Overview p. 233
12.1.1.2.4 CBCF-AMF interface operations p. 233
12.1.1.3 Architecture alternative 2: Supporting PWS in 5GS via SBc like Interface p. 234
12.1.1.3.1 Overview p. 234
12.1.1.3.2 Architecture description p. 234
12.1.1.3.2.1 PWS architecture p. 234
12.1.1.3.2.2 AMF functionality p. 235
12.1.1.3.2.3 CBC functionality p. 235
12.1.1.3.2.4 NG-RAN functionality p. 235
12.1.1.3.3 NG-RAN Protocol Overview p. 236
12.1.1.3.4 CBC-AMF interface p. 236
12.1.1.4 Architecture alternative 3: Supporting PWS in 5GS to CBCF and via PWS-IWF to CBC p. 237
12.1.1.4.1 Overview p. 237
12.1.1.4.2 Architecture description p. 237
12.1.1.4.2.1 PWS architecture p. 237
12.1.1.4.2.2 AMF functionality p. 237
12.1.1.4.2.3 CBCF functionality p. 238
12.1.1.4.2.4 CBC functionality p. 238
12.1.1.4.2.5 PWS-IWF functionality p. 238
12.1.1.4.2.6 NG-RAN functionality p. 238
12.1.1.4.3 Protocol Stack Overview p. 239
12.1.1.5 Overall evaluation p. 239
12.1.2 SMS over NAS p. 241
12.1.3 Emergency services p. 242
12.1.3.1 Indication of support of emergency services p. 242
12.1.3.2 Handling of emergency service for the UE in limited service state p. 243
12.1.3.3 Emergency PDU session setup p. 243
12.1.3.4 Handling of local emergency numbers p. 243
12.1.3.5 Security procedures for handling emergency services p. 244
12.1.3.6 IMS emergency call reattempt p. 244
12.1.4 Location services p. 244
12.1.5 Multimedia priority services p. 244
12.2 Access control p. 245
12.2.1 Unified access control (Alternative 1) p. 245
12.2.1.1 General p. 245
12.2.1.2 Operator-specific access categories p. 246
12.2.1.3 Mapping of an access attempts to access category p. 247
12.2.2 Access categories, access categorization and access control checking (combined Alternative 2 and Alternative 1) p. 249
12.2.2.1 General p. 249
12.2.2.2 Determination of the access identities and access category associated with a request for access p. 250
12.2.2.3 Operator-defined access categories p. 251
12.2.2.4 Access control and checking p. 252
12.2.2.4.1 Access control and checking in 5GMM-IDLE mode p. 252
12.2.2.4.2 Access control and checking in 5GMM-CONNECTED mode and in 5GMM-CONNECTED mode with RRC inactive indication p. 253
12.2.2.5 Exception handling and avoiding double barring p. 254
12.2.3 Alternative 3 p. 255
12.2.3.1 General p. 255
12.2.3.2 Access attempts for standardized access categories p. 255
12.2.3.2A Operator specific access categories p. 259
12.2.3.3 Layers detecting the access attempts p. 259
12.2.3.4 Access category selection assistance information p. 260
12.2.3.5 Enforcement of unified access control p. 261
12.3 Security p. 263
12.4 Quality of service (QoS) p. 263
12.4.1 General p. 263
12.4.1.1 QoS rules p. 264
12.4.1.2 Session-AMBR p. 265
12.4.1.3 UL user data packet matching p. 265
12.4.1.4 Reflective QoS p. 266
12.4.1.4.1 General p. 266
12.4.1.4.2 Derivation of packet filter for UL direction from DL user data packet p. 266
12.4.1.4.3 Creating a derived QoS rule by reflective QoS in the UE p. 267
12.4.1.4.4 fUpdating a derived QoS rule by reflective QoS in the UE p. 267
12.4.1.4.5 Deleting a derived QoS rule by reflective QoS in the UE p. 268
12.4.2 QoS coding p. 268
12.4.2.1 QoS rules coding p. 268
12.4.2.2 Session-AMBR coding p. 277
12.5 IM CN subsystem p. 279
12.6 Network sharing p. 280
12.7 Congestion and overload control p. 280
12.7.1 Handling of NAS level mobility management congestion control p. 280
12.7.2 Handling of DNN based congestion control p. 281
12.7.3 Handling of S-NSSAI based congestion control p. 281
12.8 Charging p. 282
12.9 Mission critical services p. 282
13 Network slicing p. 282
13.1 General p. 282
13.2 Mobility management aspects p. 283
13.2.1 General p. 283
13.2.2 NSSAI storage p. 283
13.3 Session management aspects p. 284
13.3.1 General p. 284
13.3.2 NSSP p. 284
14 Conclusions and recommendations p. 285
14.1 Work plan and procedures p. 285
14.2 Alternatives on NAS transport mechanism p. 285
14.3 Mapping to 3GPP TS 24.501 p. 285
14.4 Mapping to 3GPP TS 24.502 p. 287
14.5 Alternatives on architecture for PWS in 5GS p. 287
14.6 Alternatives on unified access control p. 287
14.7 Alternatives on steering of UE in VPLMN p. 287
A Impacts to specifications p. 288
A.1 New specifications p. 288
A.2 Impacted existing specifications p. 288
B Proposed changes to 3GPP TS 23.040 p. 290
C Proposed changes to 3GPP TS 24.011 p. 295
D Proposed changes to 3GPP TS 24.301 p. 306
E Proposed changes to 3GPP TS 24.007 p. 307
F Proposed changes to 3GPP TS 24.008 p. 308
$ Change history p. 309
