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TS 23.401SA2
GPRS enhancements for E‑UTRAN Access

use "3GPP‑Page" to get the Word version
use "ETSI‑search" to get the PDF version
for a better overview, the Table of Contents (ToC) is reproduced
V16.5.0 (Wzip)2019/12  436 p.
V15.10.0 (PDF)2019/12  419 p.
V14.11.02019/12  402 p.
V13.14.02019/12  386 p.
V12.11.0  2016/03  312 p.
V11.11.0  2014/12  289 p.
V10.13.0  2014/12  280 p.
V9.16.0  2014/12  258 p.
V8.18.0  2013/03  240 p.

3GPP 23.401 - Evolved Packet System (EPS)
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S1‑MMES1‑US3

Rapporteur:  Mr. Pudney, Chris

This TS defines the Stage 2 service description for the Evolved Packet System (EPS). The specification covers both roaming and non-roaming scenarios and covers all aspects, including mobility between E‑UTRAN and pre‑E‑UTRAN 3GPP radio access technologies, policy control and charging, and authentication.

short Table of Contents for  TS 23.401  Word version:   16.5.0

each title links to the equivalent title in the full ToC
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1  ScopeWord-p. 13
2  ReferencesWord-p. 13
3  Definitions and abbreviationsWord-p. 17
4  Architecture model and conceptsWord-p. 20
4.1  General conceptsWord-p. 20
4.2  Architecture reference modelWord-p. 20
4.3  High level functionsWord-p. 25
4.3.1  GeneralWord-p. 25
4.3.2  Network access control functionsWord-p. 25
4.3.2a  Support for Dual Connectivity [R12]Word-p. 26
4.3.3  Packet routing and transfer functionsWord-p. 28
4.3.4  Security functionsWord-p. 28
4.3.5  Mobility management functionsWord-p. 28
4.3.6  Radio Resource Management functionsWord-p. 35
4.3.7  Network management functionsWord-p. 36
4.3.8  Selection functionsWord-p. 47
4.3.9  IP network related functionsWord-p. 52
4.3.10  Functionality for Connection of eNodeBs to Multiple MMEsWord-p. 52
4.3.11  E-UTRAN Sharing FunctionWord-p. 52
4.3.12  IMS Emergency Session Support [R9]Word-p. 53
4.3.12a  Support of Restricted Local Operator Service [R16]Word-p. 57
4.3.13  Closed Subscriber Group functions [R9]Word-p. 59
4.3.14  Location Service functions [R9]UpWord-p. 59
4.3.15  Selected IP Traffic Offload (SIPTO) function [R10]Word-p. 59
4.3.15a  Selected IP Traffic Offload (SIPTO) at the Local Network [R12]Word-p. 60
4.3.16  Local IP Access (LIPA) function [R10]Word-p. 62
4.3.17  Support for Machine Type Communications (MTC) [R10]Word-p. 63
4.3.18  Multimedia Priority Service [R10]Word-p. 72
4.3.19  Core Network node resolution [R10]Word-p. 74
4.3.20  Relaying function [R10]Word-p. 75
4.3.21  Core Network assisted eNodeB parameters tuning [R12]Word-p. 78
4.3.22  UE Power Saving Mode [R12]Word-p. 79
4.3.23  Access network selection and traffic steering based on RAN-assisted WLAN interworking [R12]Word-p. 80
4.3.23a  Access network selection and traffic steering based on RAN-Controlled WLAN interworking [R13]Word-p. 81
4.3.24  RAN user plane congestion management function [R13]Word-p. 81
4.3.25  Dedicated Core Networks (DCNs) [R13]Word-p. 82
4.3.26  Support for Monitoring Events [R13]Word-p. 85
4.3.27  Paging Enhancements [R13]Word-p. 85
4.3.27a  Restriction of use of Enhanced Coverage for voice centric UE [R13]Word-p. 85
4.3.27b  Enhanced Coverage for data centric UEs [R14]UpWord-p. 85
4.3.28  Restriction of use of Enhanced Coverage [R14]Word-p. 85
4.3.29  3GPP PS Data Off [R14]Word-p. 86
4.3.30  Unlicensed spectrum aggregation (LAA/LWA/LWIP/NR-U) [R15]Word-p. 87
4.3.31  Subscription handling for Aerial UEs [R15]Word-p. 87
4.3.32  Support for Integrated access and backhaul (IAB) [R16]Word-p. 87
4.4  Network elementsWord-p. 89
4.5Void
4.6  EPS Mobility Management and Connection Management statesWord-p. 97
4.7  Overall QoS conceptWord-p. 100
4.8  Compatibility IssuesWord-p. 110
4.9  Paging Policy Differentiation [R13]Word-p. 110
4.10  Introduction of CIoT EPS Optimisations [R13]Word-p. 110
4.11  User Plane CIoT EPS Optimisation [R13]Word-p. 111
4.12  Supporting up to 15 EPS bearers per UE [R15]Word-p. 112
5  Functional description and information flowsWord-p. 113
5.1  Control and user planesWord-p. 113
5.2  IdentitiesWord-p. 123
5.3  Authentication, security and location managementWord-p. 125
5.3.1  IP address allocationWord-p. 125
5.3.2  Attach procedureWord-p. 130
5.3.3  Tracking Area Update proceduresWord-p. 146
5.3.4  Service Request proceduresWord-p. 185
5.3.4A  Connection Suspend procedure [R13]Word-p. 195
5.3.4B  Data Transport in Control Plane CIoT EPS Optimisation [R13]Word-p. 196
5.3.5  S1 release procedureWord-p. 208
5.3.5A  Connection Resume procedure [R13]Word-p. 211
5.3.5B  MT-EDT procedure for User Plane CIoT EPS Optimisation [R16]Word-p. 213
5.3.6Void
5.3.6A  PDN GW Pause of Charging procedure [R12]Word-p. 213
5.3.7  GUTI Reallocation procedureWord-p. 215
5.3.8  Detach procedureWord-p. 216
5.3.9  HSS User Profile management function procedureWord-p. 225
5.3.10  Security FunctionWord-p. 227
5.3.11  UE Reachability proceduresWord-p. 229
5.3.12  Update CSG Location Procedure [R11]Word-p. 230
5.3.13  CSS subscription data management function procedure [R11]Word-p. 230
5.3.14  UE Radio Capability Match Request [R11]Word-p. 231
5.4  Session Management, QoS and interaction with PCC functionalityWord-p. 232
5.5  HandoverWord-p. 251
5.5.1  Intra-E-UTRAN handoverWord-p. 251
5.5.2  Inter RAT handoverWord-p. 267
5.6  Network Assisted Cell ChangeWord-p. 300
5.7  Information storageWord-p. 301
5.7A  ChargingWord-p. 316
5.8  MBMSWord-p. 319
5.9  Interactions with other servicesWord-p. 319
5.10  Multiple-PDN support and PDN activation for UEs supporting "Attach without PDN connectivity"Word-p. 324
5.11  UE Capability HandlingWord-p. 337
5.12  Warning message deliveryWord-p. 344
5.13  Discontinuous Reception and UE Specific DRX Parameter handlingWord-p. 344
5.13a  Extended Idle mode Discontinuous Reception (DRX) [R13]Word-p. 345
5.14  Configuration Transfer procedureWord-p. 346
5.15  RAN Information Management (RIM) procedures [R9]Word-p. 348
5.16  MME-initiated procedure on UE's CSG membership change [R9]Word-p. 349
5.17  Home eNodeB Multicast Packet Forwarding Function [R10]UpWord-p. 349
5.18  HPLMN Notification with specific indication due to MME initiated Bearer removal [R11]Word-p. 350
5.19  Procedures to support Dedicated Core Networks [R13]Word-p. 350
AVoid
BVoid
CVoid
D (Normative)  Interoperation with Gn/Gp SGSNsWord-p. 360
E (Normative)  Mapping between EPS and Release 99 QoS parametersWord-p. 398
F (Normative)  Dedicated bearer activation in combination with the default bearer activation at Attach and UE requested PDN connectivity proceduresWord-p. 401
GVoid
H (Normative)  Mapping between temporary and area identitiesWord-p. 405
I  Guidance for contributors to this specificationWord-p. 406
J  High Level ISR descriptionWord-p. 407
K  Isolated E-UTRAN Operation for Public Safety [R13]Word-p. 412
L  Optimised EPS Architecture option for CIoT [R13]Word-p. 418
M  Functions and procedures over NB-IoT RAT [R13]Word-p. 420
N  Change historyWord-p. 424

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