B.7 Protocol stack when AMF and CBC inter-connects via PWS-IWF

23.0413GPPRelease 18Technical realization of Cell Broadcast Service (CBS)TS

Figure B.7-1: CBC – NG-RAN with PWS-IWF

Legend:

– NG Application Protocol information for Cell Broadcast (NG-AP-CB): Subset of NG-AP information that the AMF transparently relays between the NG-RAN and the PWS-IWF. NG-AP-CB corresponds to a subset of NG-AP defined in TS 38.413 [40].

– NG Application Protocol (NGAP): Application Layer Protocol between the NG-RAN node and the AMF. The NGAP protocol is defined in 3GPP TS 38.413 [40].

– SBc Application Protocol (SBc-AP): Application Layer Protocol between PWS-IWF and CBC. This protocol supports transfer of warning messages.

– SCTP for the control plane (SCTP): This protocol guarantees delivery of signalling messages between AMF and NG-RAN (N2), and between PWS-IWF and CBC (SBc). SCTP is defined in IETF RFC 4960 [33].

– HTTP/2: Application layer protocol for Service based interface between AMF and CBCF. HTTP/2 is defined in IETF RFC 7540 [42].

Annex C (informative):
Change history

TSG

TSG Tdoc

T2-Tdoc

CR

REL

VERS

NEW VERS

SUBJECT

T#5

TP-99179

New

R99

2.0.0

3.0.0

Transfer of GSM 03.41 v7.1.0 to 3GPP

T#6

TP-99237

T2-991064

001

R99

3.0.0

3.1.0

Adaptation of the scope of TS 23.041 from "GSM only" to "GSM and UMTS"

T#6

TP-99237

T2-991062

002

R99

3.0.0

3.1.0

LCS Utilization of CBS

T#7

TP-000024

T2-000134

003

R99

3.1.0

3.2.0

Addition of LCS message identifier to support GPS Navigation message

T#7

TP-000024

T2-000130

004

R99

3.1.0

3.2.0

Adaptation of the scope from "GSM only" to "GSM and UMTS" – Part II

T#9

TP-000143

T2-000553

005

R99

3.2.0

3.3.0

Defining Assisted GPS Broadcast Identifiers

T#11

Rel-4

3.3.0

4.0.0

Upgrade to Rel-4

T#12

TP-010128

T2-010532

007

Rel-4

4.0.0

4.1.0

Clarification of Geographical Scope

T#14

TP-010280

T2-011024

008

Rel-4

4.1.0

4.2.0

Clarification on the use of Message IDs in multi-technology networks

T#16

TP-020104

T2-020509

010

Rel-4

4.2.0

4.3.0

Update of references

T#16

4.3.0

5.0.0

Upgrade to Rel-5

T#17

TP-020252

011
rev1

Rel-6

5.0.0

6.0.0

Identification of a directory number in a CBS-Message-Information-Page

T#19

TP-030038

T2-030088

014

Rel-6

6.0.0

6.1.0

CB Data lenght

T#22

TP-030267

T2-030575

016

Rel-6

6.1.0

6.2.0

CB Data structure

CT#31

CP-060126

C1-060128

017r1

Rel-7

6.2.0

7.0.0

CBS – Reference correction

CT#41

7.0.0

8.0.0

Upgrade to Rel-8

CT#41

CP-080535

C1-083618

0019r4

Rel-8

7.0.0

8.0.0

Additions to the protocol aspects of CBS for the realisation of ETWS

CT#41

CP-080535

C1-083620

0018r5

Rel-8

7.0.0

8.0.0

Changes to CBS for the realisation of ETWS

CT#41

CP-080535

C1-083621

0020r5

Rel-8

7.0.0

8.0.0

Changes to the radio message format aspect of CBS for the realisation of ETWS

CT#42

CP-080836

C1-085355

0021r3

Rel-8

8.0.0

8.1.0

Clarification on EPS architecture and ETWS Instruction to terminal

CT#42

CP-080836

C1-085354

0022r1

Rel-8

8.0.0

8.1.0

Addition of Warning Security Information

CT#42

CP-080873

C1-085129

0023

Rel-8

8.0.0

8.1.0

CBS Message ID table

CT#43

CP-090149

C1-091099

0026r2

Rel-8

8.1.0

8.2.0

ETWS Duplication Detection

CT#43

CP-090159

C1-090442

0025r1

Rel-8

8.1.0

8.2.0

Clarification of non settable Message ID’s through MMI

CT#43

8.1.0

8.2.0

Editorial cleanup by MCC

CT#44

CP-090320

0027r2

Rel-8

8.2.0

8.3.0

Definition of ETWS Primary Notification message format

CT#44

CP-090434

C1-092257

0028r2

Rel-9

8.3.0

9.0.0

Message IDs for the U.S. Commercial Mobile Alert System (CMAS)

CT#45

CP-090686

C1-092466

0029

Rel-9

9.0.0

9.1.0

Message Identifiers for PWS

CT#45

CP-090670

C1-093124

0031r1

Rel-9

9.0.0

9.1.0

CBS activation time for ETWS information

CT#45

CP-090682

C1-093812

0032r1

Rel-9

9.0.0

9.1.0

Cell wide Geographical Scope (GS) code 00

CT#45

CP-090682

C1-093249

0033

Rel-9

9.0.0

9.1.0

Updates on references

CT#45

CP-090682

C1-093813

0034r1

Rel-9

9.0.0

9.1.0

Resolution of editor’s note

CT#45

CP-090682

C1-093251

0035

Rel-9

9.0.0

9.1.0

Fixes for typographical errors

CT#45

CP-090682

C1-093252

0036r1

Rel-9

9.0.0

9.1.0

Clarification on duplicate use of "immediate display"

CT#45

CP-090686

C1-093531

0037

Rel-9

9.0.0

9.1.0

Updating of references to stage 1 document

CT#46

CP-090912

C1-094929

0039

Rel-9

9.1.0

9.2.0

Additional ETWS requirements for the BSC – CBC Cell Broadcast protocol

CT#46

CP-090912

C1-095394

0041r1

Rel-9

9.1.0

9.2.0

Clarification on ETWS secondary notification

CT#46

CP-090912

C1-095396

0043r1

Rel-9

9.1.0

9.2.0

Correction of duplicate detection in the UE

CT#47

CP-100152

C1-101202

0044r1

Rel-9

9.2.0

9.3.0

Corrections to the Cell Broadcast Service (CBS) for ETWS

CT#47

CP-100135

C1-100625

0045

Rel-9

9.2.0

9.3.0

Correction of figure 4b

CT#47

CP-100152

C1-101263

0046r1

Rel-9

9.2.0

9.3.0

Addition of Broadcast Message Type

CT#48

CP-100345

C1-101950

0050r1

Rel-9

9.3.0

9.4.0

PLMN handling for ETWS duplicate detection

CT#48

CP-100345

C1-101551

0052

Rel-9

9.3.0

9.4.0

Removal of editor’s note for ETWS

CT#49

CP-100501

C1-102734

0053r1

Rel-9

9.4.0

9.5.0

Clarification of precedence for immediate display

CT#49

CP-100504

C1-102216

0055

Rel-9

9.4.0

9.5.0

Removal of CMAS reference to a ETWS capability

CT#49

CP-100520

C1-102735

0054r1

Rel-10

9.5.0

10.0.0

Clarification of Scope for CB in LTE

CT#49

CP-100520

C1-103152

0057

Rel-10

9.5.0

10.0.0

Clarification of definition of "PLMN Wide" in Geographical Scope (GS) indicator

CT#50

CP-100744

C1-105127

0058r2

Rel-10

10.0.0

10.1.0

Correction to CMAS Alert levels

CT#50

CP-100768

C1-104243

0056r3

Rel-11

10.1.0

11.0.0

Message Identifiers for EU-Alert

CT#50

CP-100768

C1-104483

0057

Rel-11

10.1.0

11.0.0

Message Identifier for EU-Info

CT#51

CP-110876

C1-114785

0065r3

Rel-11

11.0.0

11.1.0

Correction on Message Identifier for Korean Public Alert System

CT#51

CP-110882

C1-114427

0066r2

Rel-11

11.0.0

11.1.0

Coding of Geographical Scope parameter for E-UTRAN/LTE operation.

CT#51

CP-110853

C1-115046

0070r3

Rel-11

11.0.0

11.1.0

Correction to UE warning message indication with regards to "digital signature" and "timestamp"

CT#51

CP-110882

C1-115255

0071r2

Rel-11

11.0.0

11.1.0

Additional Message Identifiers for CMAS/EU-Alerts

CT#51

CP-110882

C1-114923

0072r1

Rel-11

11.0.0

11.1.0

Update Number Processing

CT#51

CP-110882

C1-114975

0073r1

Rel-11

11.0.0

11.1.0

Multiple languages used in CBS

CT#55

CP-120125

C1-120857

0083r3

Rel-11

11.1.0

11.2.0

Sorting out inconsistency problem in ETWS/PWS specification

CT#55

CP-120125

C1-120285

0084

Rel-11

11.1.0

11.2.0

Correction of binary coding in clause 9.4.1.2.2

CT#55

CP-120091

C1-120804

0077r2

Rel-11

11.1.0

11.2.0

Redocumentation and alignment of the public warning system

CT#56

CP-120309

C1-122384

0081r4

Rel-11

11.2.0

11.3.0

Alignment of clause 9 for PWS

CT#56

CP-120309

C1-121379

0091r1

Rel-11

11.2.0

11.3.0

Correction to the duplication detection mechanism

CT#56

CP-120285

C1-121245

0092

Rel-11

11.2.0

11.3.0

Removal of security for ETWS/PWS over E-UTRAN

CT#56

CP-120285

C1-122295

0088r3

Rel-11

11.2.0

11.3.0

Alignment and correction of aspects for public warning system for GERAN

CT#57

CP-120573

C1-123198

0094r3

Rel-11

11.3.0

11.4.0

Correction to Figure 3.3-1

CT#57

CP-120567

C1-123186

0103r1

Rel-11

11.3.0

11.4.0

Correction of Warning Message Delivery Procedure in GSM

CT#57

CP-120492

0098r1

Rel-11

11.3.0

11.4.0

Correction of reference to GSMA document "Coding of Cell Broadcast Functions"

CT#58

CP-120794

C1-123955

0095r2

Rel-11

11.4.0

11.5.0

Correction for Repetition Rates

CT#58

CP-120794

C1-123956

0107r1

Rel-11

11.4.0

11.5.0

Correction of reference in Restart Indication Request

CT#58

CP-120774

C1-123875

0111r1

Rel-11

11.4.0

11.5.0

Correcting handling of unused security parameters for warning messages

CT#58

CP-120794

C1-124990

0116r2

Rel-11

11.4.0

11.5.0

Message IDs for Operator specific services

CT#58

CP-120794

C1-125024

0117r2

Rel-11

11.4.0

11.5.0

USIM file usage for PWS message reception

CT#58

CP-120819

C1-124972

0097r5

Rel-12

11.5.0

12.0.0

Report from MME on Warning Message Delivery

CT#58

CP-120819

C1-124971

0099r4

Rel-12

11.5.0

12.0.0

Failure List in WRITE-REPLACE-WARNING-CONFIRM and STOP-WARNING-CONFIRM

CT#59

CP-130115

C1-130829

0120r2

Rel-12

12.0.0

12.1.0

Correction for Warning Area List

CT#59

CP-130129

C1-130831

0123r2

Rel-12

12.0.0

12.1.0

Clause 9.4.3 for E-UTRAN

CT#59

CP-130115

C1-130837

0124r2

Rel-12

12.0.0

12.1.0

Warning message reception in Limited Service

CT#60

CP-130264

C1-132520

0125r3

Rel-12

12.1.0

12.2.0

CB Message parameter format on the eUTRAN Radio Network – UE interface

CT#60

CP-130264

C1-131445

0127r1

Rel-12

12.1.0

12.2.0

CBS message parameter references correction

CT#60

CP-130264

C1-131446

0128r1

Rel-12

12.1.0

12.2.0

Failure Indication and Restart Indication handling

CT#60

CP-130264

C1-131725

0129r2

Rel-12

12.1.0

12.2.0

Clarification to data coding scheme usage for primary vs secondary notification

CT#61

CP-130503

C1-133320

0118r3

Rel-12

12.2.0

12.3.0

Stop-all broadcasting of warning messages and report from MME on Stop Warning Messages in E-UTRAN

CT#61

CP-130510

C1-133206

0132r1

Rel-12

12.2.0

12.3.0

CellID in E-UTRAN

CT#61

CP-130510

C1-133207

0133r1

Rel-12

12.2.0

12.3.0

Clarification on Duplication Detection

CT#61

CP-130510

C1-133646

0134r1

Rel-12

12.2.0

12.3.0

Clarification on PWS CB Data for the eUTRAN Radio interface

Post CT#61

Rel-12

12.3.0

12.3.1

Correction of typos

CT#62

CP-130750

C1-134137

0137r2

Rel-12

12.3.1

12.4.0

eNodeB ID in Stop-Warning Indication

CT#62

CP-130762

C1-134530

0139

Rel-12

12.3.1

12.4.0

Removal of cells=all feature from RNC

CT#62

CP-130751

C1-134930

0140r1

Rel-12

12.3.1

12.4.0

Stop all indicator clarification

CT#63

CP-140140

C1-140609

0135r5

Rel-12

12.4.0

12.5.0

Restart Indication

CT#63

CP-140144

C1-140440

0141r1

Rel-12

12.4.0

12.5.0

Capacity Indication Request not implemented

CT#64

CP-140331

C1-141098

0142

Rel-12

12.5.0

12.6.0

Available-Capacity not implemented

CT#64

CP-140327

C1-141642

0143r1

Rel-12

12.5.0

12.6.0

Support of category indication for prioritization of emergency alerts

CT#66

CP-140836

C1-144414

0146

Rel-12

12.6.0

12.7.0

Removal of CAPACITY-INDICATION reference

CT#66

CP-140858

C1-144827

0147r1

Rel-13

12.7.0

13.0.0

Missing Broadcast Message Content Validity Indicator IE

CT#68

CP-150310

C1-150914

0149

Rel-13

13.0.0

13.1.0

Correction for List of TAIs

CT#68

CP-150310

C1-151465

0151r1

Rel-13

13.0.0

13.1.0

Clarification on CBC Geo-redundancy support in LTE

CT#68

CP-150329

C1-151463

0152r1

Rel-13

13.0.0

13.1.0

Serial Number handling for WRITE-REPLACE Request/Indication primitive

CT#68

CP-150310

C1-151830

0154

Rel-13

13.0.0

13.1.0

Warning message indication delivery for PWS reporting enhancement

CT#68

CP-150329

C1-151831

0155

Rel-13

13.0.0

13.1.0

ETWS Primary Notification message at E-UTRAN interface

CT#68

CP-150329

C1-152386

0156r1

Rel-13

13.0.0

13.1.0

Reference corrections and editorial updates

CT#70

CP-150700

C1-154874

0157r4

Rel-13

13.1.0

13.2.0

Failure Indication

CT#71

CP-160086

C1-160316

0159

Rel-13

13.2.0

13.3.0

Failed cell list parameter content correction

Change history

Date

Meeting

TDoc

CR

Rev

Cat

Subject/Comment

New version

2016-09

CP-73

CP-160519

0160

2

F

RESET COMPLETE and RESET FAILURE Response messages missing

14.0.0

2017-06

CP-76

CP-171092

0161

2

C

Addition of new Message Identifiers for FCC mandated Wireless Emergency Alert (WEA, aka CMAS) enhancements

14.1.0

2017-12

CP-78

CP-173067

0165

1

F

Correction to the Data Coding Scheme clause in support of NA regulatory requirement

14.2.0

2017-12

CP-78

CP-173069

0166

3

B

Support of PWS in 5GS

15.0.0

2018-03

CP-79

CP-180077

0167

2

B

PWS message format for NG-RAN in 5G

15.1.0

2018-03

CP-79

CP-180077

0168

3

B

AMF to CBC inter-connectivity solution option with and without IWF

15.1.0

2018-03

CP-79

CP-180077

0169

2

B

PWS in NR – clause 9.1.3.5

15.1.0

2018-03

CP-79

CP-180077

0170

2

B

PWS in NR – clause 9.2.0

15.1.0

2018-03

CP-79

CP-180077

0171

1

B

PWS in NR – clause 9.2.x

15.1.0

2018-03

CP-79

CP-180077

0172

3

B

PWS in NR – clause 9.3.x

15.1.0

2018-03

CP-79

CP-180077

0173

1

B

AMF, CBC and CBCF functionalities for PWS in 5G

15.1.0

2018-03

CP-79

CP-180077

0174

B

Service Based Interface for 5G System

15.1.0

2018-06

CP-80

CP-181057

0175

1

F

Corrections to table 6 and consistent use of terminology

15.2.0

2018-06

CP-80

CP-181057

0176

F

Addition of reference to TS 23.502

15.2.0

2018-06

CP-80

CP-181057

0177

1

B

Addition of entity functionality clauses in annex B

15.2.0

2018-06

CP-80

CP-181057

0178

1

F

Correction for the use of NG-RAN node and other general corrections

15.2.0

2018-06

CP-80

CP-181057

0180

3

F

Addition of reference point between AMF and CBCF

15.2.0

2018-06

CP-80

CP-181057

0181

F

Removal of Extended Repetition-Period IE for NG-RAN

15.2.0

2018-06

CP-80

CP-181057

0182

F

Correction Warning message content and removal of editor’s

15.2.0

2018-06

CP-80

CP-181058

0183

2

F

Clarification on no use of container for PWS messages via N2

15.2.0

2018-09

CP-81

CP-182128

0184

1

B

Modifications needed to address NG-RAN over SBc

15.3.0

2018-09

CP-81

CP-182128

0185

1

F

Corrections to IE names for NG-RAN

15.3.0

2018-09

CP-81

CP-182128

0186

1

F

Solving Editor’s notes for PWS

15.3.0

2018-09

CP-81

CP-182158

0189

6

B

Warning Area Coordinates in WRITE-REPLACE WARNING REQUEST

15.3.0

2018-12

CP-82

CP-183030

0192

1

F

Duplicate detection for EUTRA connected to both EPC and 5GCN

15.4.0

2018-12

CP-82

CP-183030

0193

F

Resolving the EN for the PWS restoration procedure for NG-RAN

15.4.0

2019-03

CP-83

CP-190100

0194

4

F

Additional Message Identifier to direct UEs to perform geo-fencing of CMAS messages

15.5.0

2019-03

CP-83

CP-190082

0195

1

F

Corrections on Warning Area List and TAIs for NG-RAN

15.5.0

2019-03

CP-83

CP-190082

0198

1

F

Correction on applicability of List of TAIs

15.5.0

2019-03

CP-83

CP-190064

0200

F

Incorrect reference

16.0.0

2019-09

CP-85

CP-192071

0201

F

Missing references and some editorial cleanup

16.1.0

2019-12

CP-86

CP-193105

0202

3

B

Addition of the support of ePWS functionality via E-UTRAN and NG-RAN

16.2.0

2019-12

CP-86

CP-193105

0203

3

B

Support of language-independent content mapped to a disaster in a warning message

16.2.0

2020-03

CP-87e

CP-200128

0204

F

Misalignment of 23.041 with 23.007 and 23.527

16.3.0

2020-03

CP-87e

CP-200110

0205

F

Procedures for an ETWS/CMAS-capable UE in NG-RAN

16.3.0

2020-03

CP-87e

CP-200118

0208

2

B

Addition of message identifiers for UEs with no user interface

16.3.0

2020-03

CP-87e

CP-200118

0209

1

B

Support of a stored language-independent content referenced by a warning message

16.3.0

2020-06

CP-88e

CP-201100

0207

2

F

Removal of Duplicate Service Operation Details

16.4.0

2020-06

CP-88e

CP-201100

0212

F

Correction to figure

16.4.0

2020-06

CP-88e

CP-201100

0213

F

Corrections to references

16.4.0

2020-06

CP-88e

CP-201100

0214

1

F

Subscription management in PWS-IWF

16.4.0

2020-06

CP-88e

CP-201131

0217

1

F

Handling of Concurrent Warning Message Indicator

16.4.0

2020-06

CP-88e

CP-201115

0218

F

Deletion of Editor’s note in the clause 9.3.24 Warning-Type for ETWS

16.4.0

2020-09

CP-89e

CP-202184

0220

3

F

Geo-fencing check for no stored "warning message" matched

17.0.0

2021-06

CP-92e

CP-211150

0222

F

Geo-fencing check for none of stored "warning message" matched to geo-fencing trigger

17.1.0

2021-06

CP-92e

CP-211150

0221

1

C

Broadcast Empty Area List for Write-Replace-Warning Request

17.1.0

2021-09

CP-93e

CP-212153

0215

3

F

Addition of Test Flag

17.2.0

2021-09

CP-93e

CP-212140

0224

F

Assign MI values for EU-Alert Level 4

17.2.0

2021-09

CP-93e

CP-212124

0225

1

B

Adding support for PWS in SNPNs

17.2.0

2021-09

CP-93e

CP-212153

0226

F

Correction on PWS 5GS architecture depiction

17.2.0

2022-03

CP-95e

CP-220236

0228

1

C

UE configuration for warning message reception in SNPNs

17.3.0

2022-06

CP-96e

CP-221203

0232

1

F

Removal of Editor’s note on USIM data file for configuration of warning message reception when the UE accesses an SNPN using the PLMN subscription

17.4.0

2022-06

CP-96e

CP-221328

0231

2

F

Device based geo-fencing for EU-alert

18.0.0

2022-12

CP-98e

CP-223144

0233

2

B

CBS Message Identifiers for additional KPAS services

18.1.0