1、 ETSI TS 123 501 V15.2.0 (2018-06) 5G; System Architecture for the 5G System (3GPP TS 23.501 version 15.2.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 123 501 V15.2.0 (2018-06)13GPP TS 23.501 version 15.2.0 Release 15Reference DTS/TSGS-0223501vf20 Keywords 5G ETSI 650 Route des Lucioles F-0692
2、1 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search
3、The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between su
4、ch versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information o
5、n the current status of this and other ETSI documents is available at https:/portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notifica
6、tion No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and
7、 the foregoing restriction extend to reproduction in all media. ETSI 2018. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTETMare trademarks of ETSI registered for the benefit of its Members and of the 3
8、GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSMand the GSM logo are trademarks registered and owned by the GSM Association. ETSI ETSI TS 123 501 V15.2.0 (2018-06)23GPP TS 23.501 version 15.2.0 Release 15Intellectual Property Rights Essential patents IPRs ess
9、ential or potentially essential to normative deliverables may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or poten
10、tially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No
11、 guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/
12、or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI o
13、f products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities o
14、r GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“,
15、“should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citatio
16、n. ETSI ETSI TS 123 501 V15.2.0 (2018-06)33GPP TS 23.501 version 15.2.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 11g31 Scope 12g32 References 12g33 Definitions and abbreviations . 14g33.1 Definitions 14g33.2 Abbreviations . 17g34 Architec
17、ture model and concepts . 18g34.1 General concepts 18g34.2 Architecture reference model . 19g34.2.1 General 19g34.2.2 Network Functions and entities 19g34.2.3 Non-roaming reference architecture . 20g34.2.4 Roaming reference architectures . 23g34.2.5 Data Storage architectures 25g34.2.6 Service-based
18、 interfaces . 27g34.2.7 Reference points . 27g34.2.8 Support of non-3GPP access . 29g34.2.8.1 General Concepts to Support Non-3GPP Access 29g34.2.8.2 Architecture Reference Model for Non-3GPP Accesses . 30g34.2.8.2.1 Non-roaming Architecture for Non-3GPP Accesses . 30g34.2.8.2.2 LBO Roaming Architec
19、ture for Non-3GPP Accesses, N3IWF in same PLMN as 3GPP access 30g34.2.8.2.3 Home-routed Roaming Architecture for Non-3GPP Accesses, N3IWF in same PLMN as 3GPP access 31g34.2.8.2.4 LBO Roaming Architecture for Non-3GPP Accesses, N3IWF in different PLMN from 3GPP access . 32g34.2.8.2.5 Home-routed Roa
20、ming Architecture for Non-3GPP Accesses, N3IWF in different PLMN from 3GPP access 33g34.2.8.3 Non-3GPP Access Reference Points . 34g34.2.9 Network Analytics architecture 34g34.3 Interworking with EPC . 34g34.3.1 Non-roaming architecture . 34g34.3.2 Roaming architecture 35g34.3.3 Interworking between
21、 5GC via non-3GPP access and E-UTRAN connected to EPC 37g34.3.3.1 Non-roaming architecture . 37g34.3.3.2 Roaming architecture 38g34.3.4 Interworking between ePDG connected to EPC and 5GS 40g34.3.4.1 Non-roaming architecture . 40g34.3.4.2 Roaming architectures. 41g34.4 Specific services . 43g34.4.1 P
22、ublic Warning System 43g34.4.2 SMS over NAS . 43g34.4.2.1 Architecture to support SMS over NAS 43g34.4.2.2 Reference point to support SMS over NAS 45g34.4.2.3 Service based interface to support SMS over NAS . 45g34.4.3 IMS support 45g34.4.4 Location services 46g34.4.4.1 Architecture to support Locat
23、ion Services 46g34.4.4.2 Reference point to support Location Services . 46g34.4.4.3 Service Based Interfaces to support Location Services . 47g34.4.5 Application Triggering Services . 47g35 High level features 47g3ETSI ETSI TS 123 501 V15.2.0 (2018-06)43GPP TS 23.501 version 15.2.0 Release 155.1 Gen
24、eral . 47g35.2 Network Access Control 47g35.2.1 General 47g35.2.2 Network selection . 47g35.2.3 Identification and authentication . 47g35.2.4 Authorisation 48g35.2.5 Access control and barring . 48g35.2.6 Policy control 48g35.2.7 Lawful Interception. 48g35.3 Registration and Connection Management .
25、48g35.3.1 General 48g35.3.2 Registration Management . 48g35.3.2.1 General 48g35.3.2.2 5GS Registration Management states 48g35.3.2.2.1 General 48g35.3.2.2.2 RM-DEREGISTERED state 49g35.3.2.2.3 RM-REGISTERED state. 49g35.3.2.2.4 5GS Registration Management State models 50g35.3.2.3 Registration Area m
26、anagement . 50g35.3.2.4 Support of a UE registered over both 3GPP and Non-3GPP access . 50g35.3.3 Connection Management 52g35.3.3.1 General 52g35.3.3.2 5GS Connection Management states . 52g35.3.3.2.1 General 52g35.3.3.2.2 CM-IDLE state 52g35.3.3.2.3 CM-CONNECTED state . 53g35.3.3.2.4 5GS Connection
27、 Management State models . 53g35.3.3.2.5 CM-CONNECTED with RRC Inactive state 54g35.3.3.3 NAS signalling connection management 56g35.3.3.3.1 General 56g35.3.3.3.2 NAS signalling connection establishment . 56g35.3.3.3.3 NAS signalling connection Release. 56g35.3.3.4 Support of a UE connected over bot
28、h 3GPP and Non-3GPP access . 56g35.3.4 UE Mobility 56g35.3.4.1 Mobility Restrictions . 56g35.3.4.1.1 General 56g35.3.4.1.2 Management of Service Area Restrictions 58g35.3.4.2 Mobility Pattern 58g35.3.4.3 Radio Resource Management functions 59g35.3.4.4 UE mobility event notification 59g35.4 3GPP acce
29、ss specific aspects 60g35.4.1 UE reachability in CM-IDLE 60g35.4.1.1 General 60g35.4.1.2 UE reachability allowing mobile terminated data while the UE is CM-IDLE 61g35.4.1.3 Mobile Initiated Connection Only (MICO) mode . 61g35.4.2 UE reachability in CM-CONNECTED. 62g35.4.3 Paging strategy handling .
30、62g35.4.3.1 General 62g35.4.3.2 Paging Policy Differentiation 62g35.4.3.3 Paging Priority 63g35.4.4 UE Radio Capability handling 63g35.4.4.1 UE radio capability information storage in the AMF 63g35.4.4.2 Void. 64g35.4.4.2a UE Radio Capability Match Request 64g35.4.4.3 Paging assistance information .
31、 64g35.4.4a UE MM Core Network Capability handling . 64g35.4.4b UE 5GSM Core Network Capability handling . 65g35.4.5 DRX (Discontinuous Reception) framework 65g35.4.6 Core Network assistance information for RAN optimization . 66g35.4.6.1 General 66g35.4.6.2 Core Network assisted RAN parameters tunin
32、g 66g35.4.6.3 Core Network assisted RAN paging information 66g3ETSI ETSI TS 123 501 V15.2.0 (2018-06)53GPP TS 23.501 version 15.2.0 Release 155.4.7 NG-RAN location reporting . 67g35.5 Non-3GPP access specific aspects . 67g35.5.1 Registration Management . 67g35.5.2 Connection Management 67g35.5.3 UE
33、Reachability 68g35.5.3.1 UE reachability in CM-IDLE 68g35.5.3.2 UE reachability in CM-CONNECTED . 68g35.6 Session Management 69g35.6.1 Overview 69g35.6.2 Interaction between AMF and SMF . 70g35.6.3 Roaming 72g35.6.4 Single PDU Session with multiple PDU Session Anchors . 73g35.6.4.1 General 73g35.6.4
34、.2 Usage of an UL Classifier for a PDU Session . 73g35.6.4.3 Usage of IPv6 multi-homing for a PDU Session. 74g35.6.5 Support for Local Area Data Network 75g35.6.6 Secondary authentication/authorization by a DN-AAA server during the establishment of a PDU Session 77g35.6.7 Application Function influe
35、nce on traffic routing 78g35.6.8 Selective activation and deactivation of UP connection of existing PDU Session . 82g35.6.9 Session and Service Continuity 83g35.6.9.1 General 83g35.6.9.2 SSC mode 84g35.6.9.2.1 SSC Mode 1 . 84g35.6.9.2.2 SSC Mode 2 . 84g35.6.9.2.3 SSC Mode 3 . 84g35.6.9.3 SSC mode se
36、lection. 84g35.6.10 Specific aspects of different PDU Session types 85g35.6.10.1 Support of IP PDU Session type . 85g35.6.10.2 Support of Ethernet PDU Session type . 86g35.6.10.3 Support of Unstructured PDU Session type 87g35.6.11 UE presence in Area of Interest reporting usage by SMF . 88g35.6.12 U
37、se of Network Instance . 89g35.7 QoS model 89g35.7.1 General Overview . 89g35.7.1.1 QoS Flow 89g35.7.1.2 QoS Profile 90g35.7.1.3 Control of QoS Flows . 90g35.7.1.4 QoS Rules . 91g35.7.1.5 QoS Flow mapping . 91g35.7.1.6 DL traffic. 93g35.7.1.7 UL Traffic . 93g35.7.1.8 AMBR/MFBR enforcement and rate l
38、imitation 93g35.7.1.9 Precedence Value 94g35.7.2 5G QoS Parameters . 94g35.7.2.1 5QI 94g35.7.2.2 ARP . 94g35.7.2.3 RQA 95g35.7.2.4 Notification control . 95g35.7.2.5 Flow Bit Rates. 95g35.7.2.6 Aggregate Bit Rates 96g35.7.2.7 Default values . 96g35.7.2.8 Maximum Packet Loss Rate 96g35.7.3 5G QoS cha
39、racteristics 96g35.7.3.1 General 96g35.7.3.2 Resource Type . 97g35.7.3.3 Priority Level 97g35.7.3.4 Packet Delay Budget . 97g35.7.3.5 Packet Error Rate 97g35.7.3.6 Averaging Window . 98g35.7.3.7 Maximum Data Burst Volume 98g35.7.4 Standardized 5QI to QoS characteristics mapping 98g3ETSI ETSI TS 123
40、501 V15.2.0 (2018-06)63GPP TS 23.501 version 15.2.0 Release 155.7.5 Reflective QoS 101g35.7.5.1 General 101g35.7.5.2 UE Derived QoS Rule . 101g35.7.5.3 Reflective QoS Control . 102g35.7.6 Packet Filter Set 103g35.7.6.1 General 103g35.7.6.2 IP Packet Filter Set 103g35.7.6.3 Ethernet Packet Filter Set
41、 104g35.8 User Plane Management . 104g35.8.1 General 104g35.8.2 Functional Description 104g35.8.2.1 General 104g35.8.2.2 UE IP Address Management . 105g35.8.2.2.1 General 105g35.8.2.2.2 Routing rules configuration . 106g35.8.2.2.3 The procedure of Stateless IPv6 Address Autoconfiguration 106g35.8.2.
42、3 Management of CN Tunnel Info . 107g35.8.2.3.1 General 107g35.8.2.3.2 Management of CN Tunnel Info in the SMF . 107g35.8.2.3.3 Management of CN Tunnel Info in the UPF . 107g35.8.2.4 Traffic Detection . 107g35.8.2.4.1 General 107g35.8.2.4.2 Traffic Detection Information . 107g35.8.2.5 Control of Use
43、r Plane Forwarding 108g35.8.2.6 Charging and Usage Monitoring Handling . 109g35.8.2.6.1 General 109g35.8.2.6.2 Activation of Usage Reporting in UPF 109g35.8.2.6.3 Reporting of Usage Information towards SMF . 109g35.8.2.7 PDU Session and QoS Flow Policing . 110g35.8.2.8 PCC Related Functions . 110g35
44、.8.2.8.1 Activation/Deactivation of predefined PCC rules . 110g35.8.2.8.2 Enforcement of Dynamic PCC Rules 111g35.8.2.8.3 Redirection 111g35.8.2.8.4 Support of PFD Management 111g35.8.2.9 Functionality of Sending of “End marker“ 112g35.8.2.9.0 Introduction . 112g35.8.2.9.1 UPF Constructing the “End
45、marker“ Packets 112g35.8.2.9.2 SMF Constructing the “End marker“ Packets 112g35.8.2.10 UP Tunnel Management . 112g35.8.2.11 Parameters for N4 session management 113g35.8.2.11.1 General 113g35.8.2.11.2 N4 Session Context . 113g35.8.2.11.3 Packet Detection Rule . 113g35.8.2.11.4 QoS Enforcement Rule 1
46、14g35.8.2.11.5 Usage Reporting Rule 116g35.8.2.11.6 Forwarding Action Rule 118g35.8.2.11.7 Usage Report generated by UPF . 121g35.8.2.12 Reporting of the UE MAC addresses used in a PDU Session . 121g35.8.3 Explicit Buffer Management. 121g35.8.3.1 General 121g35.8.3.2 Buffering at UPF . 122g35.8.3.3
47、Buffering at SMF 122g35.8.4 SMF Pause of Charging 122g35.9 Identifiers . 122g35.9.1 General 122g35.9.2 Subscription Permanent Identifier 122g35.9.2a Subscription Concealed Identifier . 123g35.9.3 Permanent Equipment Identifier . 123g35.9.4 5G Globally Unique Temporary Identifier . 123g35.9.5 AMF Nam
48、e . 124g35.9.6 Data Network Name (DNN) . 124g35.9.7 Internal-Group Identifier . 124g3ETSI ETSI TS 123 501 V15.2.0 (2018-06)73GPP TS 23.501 version 15.2.0 Release 155.9.8 Generic Public Subscription Identifier 124g35.9.9 AMF UE NGAP ID 124g35.10 Security aspects 124g35.10.1 General 124g35.10.2 Securi
49、ty Model for non-3GPP access . 125g35.10.2.1 Signalling Security 125g35.10.3 PDU Session User Plane Security . 125g35.11 Support for Dual Connectivity, Multi-Connectivity . 126g35.11.1 Support for Dual Connectivity 126g35.12 Charging . 127g35.13 Support for Edge Computing 127g35.14 Policy Control 128g35.15 Network slicing 128g35.15.1 General 128g35.15.2 Identification and selection of a Network Slice: the S-NSSAI and the NSSAI 129g35.15.2.1 General 129g35.15.2.2 Standardised SST values . 130g35.15.3 Subscription aspects 130g35.15.4 UE NSSAI configuration and NSSAI storage aspe
