1、 ETSI TS 123 401 V14.6.0 (2018-01) LTE; General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access (3GPP TS 23.401 version 14.6.0 Release 14) TECHNICAL SPECIFICATION ETSI ETSI TS 123 401 V14.6.0 (2018-01)13GPP TS 23.401 version 14.6.0 Rel
2、ease 14Reference RTS/TSGS-0223401ve60 Keywords LTE ETSI 650 Route des Lucioles F-06921 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 not
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9、.401 version 14.6.0 Release 14Intellectual Property Rights Essential patents IPRs essential or potentially essential to the present document 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
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13、ose trademarks in the present document does not constitute an endorsement by ETSI of 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
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15、eryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “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
16、 “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 123 401 V14.6.0 (2018-01)33GPP TS 23.401 version 14.6.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 11g31 Scope 12g32 References 12g33 Definit
17、ions and abbreviations . 15g33.1 Definitions 15g33.2 Abbreviations . 17g34 Architecture model and concepts . 18g34.1 General concepts 18g34.2 Architecture reference model . 18g34.2.1 Non-roaming architecture . 18g34.2.2 Roaming architecture 19g34.2.3 Reference points . 21g34.2.4 Warning System archi
18、tecture 22g34.3 High level functions . 22g34.3.1 General 22g34.3.2 Network access control functions . 23g34.3.2.1 General 23g34.3.2.2 Network/Access network selection . 23g34.3.2.3 Authentication and authorisation function 23g34.3.2.4 Admission control function . 23g34.3.2.5 Policy and Charging Enfo
19、rcement Function . 23g34.3.2.6 Lawful Interception . 23g34.3.2a Support for Dual Connectivity 23g34.3.3 Packet routing and transfer functions 24g34.3.3.1 General 24g34.3.3.2 IP header compression function 24g34.3.3.3 Packet screening function . 25g34.3.3.4 IP Multicast Forwarding between a network a
20、ccessed by LIPA and a UE . 25g34.3.4 Security functions . 25g34.3.5 Mobility management functions . 25g34.3.5.1 General 25g34.3.5.2 Reachability Management for UE in ECM-IDLE state. 25g34.3.5.3 Tracking Area list management 26g34.3.5.4 Inter-eNodeB mobility anchor function 27g34.3.5.5 Inter-3GPP mob
21、ility anchor function 27g34.3.5.6 Idle mode signalling reduction function 27g34.3.5.7 Mobility Restrictions . 29g34.3.5.8 IMS voice over PS Session Supported Indication . 29g34.3.5.8A Homogenous Support of IMS Voice over PS Sessions Indication 30g34.3.5.9 Voice domain preference and UEs usage settin
22、g 30g34.3.5.10 Preferred and Supported Network Behaviour . 30g34.3.6 Radio Resource Management functions . 31g34.3.7 Network management functions . 32g34.3.7.1 General 32g34.3.7.1a GTP-C signalling based Load and Overload Control 32g34.3.7.1a.1 GTP-C Load Control . 32g34.3.7.1a.2 GTP-C Overload Cont
23、rol. 33g34.3.7.2 Load balancing between MMEs 34g34.3.7.3 Load re-balancing between MMEs . 35g34.3.7.4 MME control of overload 36g34.3.7.4.1 General 36g3ETSI ETSI TS 123 401 V14.6.0 (2018-01)43GPP TS 23.401 version 14.6.0 Release 144.3.7.4.1a Throttling of Downlink Data Notification Requests 37g34.3.
24、7.4.1b Throttling of NIDD Submit Requests 38g34.3.7.4.2 NAS level congestion control 38g34.3.7.5 PDN GW control of overload 43g34.3.8 Selection functions 44g34.3.8.1 PDN GW selection function (3GPP accesses) 44g34.3.8.2 Serving GW selection function . 46g34.3.8.3 MME selection function 47g34.3.8.4 S
25、GSN selection function . 47g34.3.8.5 Selection of PCRF . 48g34.3.9 IP network related functions . 48g34.3.9.1 Domain Name Service function 48g34.3.9.2 DHCP function 48g34.3.9.3 Explicit Congestion Notification . 48g34.3.10 Functionality for Connection of eNodeBs to Multiple MMEs 48g34.3.11 E-UTRAN S
26、haring Function 48g34.3.12 IMS Emergency Session Support . 49g34.3.12.1 Introduction . 49g34.3.12.2 Architecture Reference Model for Emergency Services . 51g34.3.12.3 Mobility and Access Restrictions for Emergency Services . 51g34.3.12.3a Reachability Management for UE in ECM-IDLE state. 51g34.3.12.
27、4 PDN GW selection function (3GPP accesses) for Emergency Services . 51g34.3.12.5 QoS for Emergency Services 52g34.3.12.6 PCC for Emergency Services 52g34.3.12.7 Load re-balancing between MMEs for Emergency Services 52g34.3.12.8 IP Address Allocation . 52g34.3.12.9 Handling of PDN Connections for Em
28、ergency Bearer Services . 52g34.3.12.10 ISR function for Emergency Bearer Services . 53g34.3.12.11 Support of eCall Only Mode . 53g34.3.13 Closed Subscriber Group functions 53g34.3.14 Location Service functions . 54g34.3.15 Selected IP Traffic Offload (SIPTO) function 54g34.3.15a Selected IP Traffic
29、 Offload (SIPTO) at the Local Network 55g34.3.15a.1 General 55g34.3.15a.2 SIPTO at the Local Network with stand-alone GW (with S-GW and L-GW collocated) function 55g34.3.15a.3 SIPTO at the Local Network with L-GW function collocated with the (H)eNB 56g34.3.16 Local IP Access (LIPA) function 56g34.3.
30、17 Support for Machine Type Communications (MTC) 57g34.3.17.1 General 57g34.3.17.2 Overview of protection from Potential MTC Related Overload . 58g34.3.17.3 Optimizing periodic TAU Signalling 59g34.3.17.4 UE configuration and usage of indicators . 59g34.3.17.5 Void. 61g34.3.17.6 Support of UEs confi
31、gured for low access priority, Extended Access Barring and permission for override . 61g34.3.17.7 High latency communication 61g34.3.17.8 Support for Non-IP Data Delivery (NIDD) . 62g34.3.17.8.1 General 62g34.3.17.8.2 ESM Procedures 62g34.3.17.8.3 Delivery mechanism 63g34.3.18 Multimedia Priority Se
32、rvice 64g34.3.18.1 General 64g34.3.18.2 IMS-based Multimedia Priority Services 65g34.3.18.2.1 Originating IMS-based MPS Session 65g34.3.18.2.2 Terminating IMS-based MPS Session . 65g34.3.18.3 Priority EPS Bearer Services. 66g34.3.18.4 CS fallback 66g34.3.18.5 Network Congestion Controls for MPS 66g3
33、4.3.18.6 Load Re-balancing between MMEs for MPS . 66g34.3.19 Core Network node resolution 66g34.3.19.1 General 66g34.3.19.2 MSB in LAC and MME Group ID 67g3ETSI ETSI TS 123 401 V14.6.0 (2018-01)53GPP TS 23.401 version 14.6.0 Release 144.3.19.3 Explicit Indication . 67g34.3.20 Relaying function 67g34
34、.3.20.1 General 67g34.3.20.2 RN startup and attach procedure . 68g34.3.20.2.1 General 68g34.3.20.2.2 Attach for RN preconfiguration . 68g34.3.20.2.3 Attach for RN operation 68g34.3.20.3 DeNB E-RAB activation/modification . 69g34.3.21 Core Network assisted eNodeB parameters tuning . 70g34.3.21.1 CN A
35、ssistance Information . 70g34.3.21.2 Void. 71g34.3.21.3 Core Network Assistance Procedures . 71g34.3.22 UE Power Saving Mode . 71g34.3.23 Access network selection and traffic steering based on RAN-assisted WLAN interworking 72g34.3.23a Access network selection and traffic steering based on RAN-Contr
36、olled WLAN interworking 73g34.3.24 RAN user plane congestion management function . 73g34.3.24.1 General 73g34.3.24.2 RAN user plane congestion mitigation in the RAN 73g34.3.24.3 RAN user plane congestion mitigation in the CN . 73g34.3.25 Dedicated Core Networks (DCNs) . 74g34.3.25.1 General 74g34.3.
37、25.1a UE assisted Dedicated Core Network selection 75g34.3.25.2 Considerations for Roaming 76g34.3.25.3 Considerations for Network Sharing . 76g34.3.26 Support for Monitoring Events . 76g34.3.27 Paging Enhancements . 77g34.3.27.1 Paging for Enhanced Coverage . 77g34.3.27a Restriction of use of Enhan
38、ced Coverage for voice centric UE 77g34.3.27b Enhanced Coverage for data centric UEs . 77g34.3.28 Restriction of use of Enhanced Coverage . 77g34.3.29 3GPP PS Data Off 78g34.3.29.1 General 78g34.4 Network elements . 78g34.4.1 E-UTRAN . 78g34.4.2 MME . 79g34.4.3 Gateway 80g34.4.3.1 General 80g34.4.3.
39、2 Serving GW. 80g34.4.3.3 PDN GW . 81g34.4.4 SGSN 82g34.4.5 GERAN 82g34.4.6 UTRAN 82g34.4.7 PCRF 82g34.4.7.1 General 82g34.4.7.2 Home PCRF (H-PCRF). 82g34.4.7.3 Visited PCRF (V-PCRF) . 82g34.4.8 PDN GWs associated AAA Server 82g34.4.9 HeNB subsystem 83g34.4.10 DeNB 84g34.4.11 CSG Subscriber Server .
40、 84g34.4.12 RAN Congestion Awareness Function . 84g34.5 Void 85g34.6 EPS Mobility Management and Connection Management states . 85g34.6.1 General 85g34.6.2 Definition of main EPS Mobility Management states 85g34.6.2.1 EMM-DEREGISTERED 85g34.6.2.2 EMM-REGISTERED . 86g34.6.3 Definition of EPS Connecti
41、on Management states . 86g34.6.3.1 ECM-IDLE 86g34.6.3.2 ECM-CONNECTED. 87g34.6.4 State transition and functions 88g34.7 Overall QoS concept 89g3ETSI ETSI TS 123 401 V14.6.0 (2018-01)63GPP TS 23.401 version 14.6.0 Release 144.7.1 PDN connectivity service . 89g34.7.2 The EPS bearer . 89g34.7.2.1 The E
42、PS bearer in general . 89g34.7.2.2 The EPS bearer with GTP-based S5/S8 92g34.7.2.3 The EPS bearer with PMIP-based S5/S8 93g34.7.3 Bearer level QoS parameters 93g34.7.4 Support for Application / Service Layer Rate Adaptation 94g34.7.5 Application of PCC in the Evolved Packet System 95g34.7.6 Bearer C
43、ontrol Mode in EPC 95g34.7.7 Support of rate control of user data using CIoT EPS optimisation . 96g34.7.7.1 General 96g34.7.7.2 Serving PLMN Rate Control . 96g34.7.7.3 APN Rate Control . 97g34.7.8 Inter-UE QoS for NB-IoT UEs using Control Plane CIoT EPS Optimisation 97g34.8 Compatibility Issues . 98
44、g34.8.1 Network Configuration for Interaction with UTRAN/GERAN 98g34.9 Paging Policy Differentiation . 98g34.10 Introduction of CIoT EPS Optimisations . 98g34.11 User Plane CIoT EPS Optimisation . 99g35 Functional description and information flows 100g35.1 Control and user planes 100g35.1.0 General
45、100g35.1.1 Control Plane 100g35.1.1.1 General 100g35.1.1.2 eNodeB - MME . 101g35.1.1.3 UE - MME 101g35.1.1.4 SGSN - MME 102g35.1.1.5 SGSN - S-GW . 102g35.1.1.6 S-GW - P-GW . 103g35.1.1.7 MME - MME 103g35.1.1.8 MME - S-GW 104g35.1.1.9 MME - HSS 104g35.1.1.10 MME - EIR . 105g35.1.1.11 Void. 105g35.1.1
46、.12 MME - CSS . 105g35.1.1.13 MME - RCAF . 106g35.1.2 User Plane . 106g35.1.2.1 UE - P-GW user plane with E-UTRAN 106g35.1.2.2 eNodeB - S-GW 107g35.1.2.3 UE - PDN GW user plane with 2G access via the S4 interface 107g35.1.2.4 UE - PDN GW user plane with 3G access via the S12 interface 108g35.1.2.5 U
47、E - PDN GW user plane with 3G access via the S4 interface 109g35.1.2.6 UE - P-GW user plane with Control Plane CIoT Optimisations . 110g35.2 Identities . 110g35.2.1 EPS bearer identity . 110g35.2.2 Globally Unique Temporary UE Identity . 110g35.2.3 Tracking Area Identity (TAI) 111g35.2.4 eNodeB S1-A
48、P UE Identity (eNodeB S1-AP UE ID) 111g35.2.5 MME S1-AP UE Identity (MME S1-AP UE ID) . 111g35.2.6 Closed Subscriber Group ID . 111g35.3 Authentication, security and location management 111g35.3.1 IP address allocation . 111g35.3.1.1 General 111g35.3.1.2 IP address allocation, renewal and release me
49、chanisms for GTP based S5/S8 . 114g35.3.1.2.1 IPv4 address allocation via default bearer activation and release via PDN connection release. 114g35.3.1.2.2 Allocation, renewal and release of the IPv6 default prefix via IPv6 stateless address autoconfiguration . 114g35.3.1.2.3 IPv6 parameter configuration via stateless DHCPv6. 115g35.3.1.2.4 IPv4 address allocation, renewal and release and IPv4 parameter configuration via DHCPv4 . 115g35.3.1.2.5 Void . 116g35.3.1.2.6 IPv6 Prefix Delegation via DHCPv6 . 116g3ETSI ETSI TS 123 401 V14.6.0 (2018-01)73GPP TS 23.401 version 14.6.0
