B.3 Service-level interworking: IP-SM-GW informs SMS users about group chat participant changes

23.2043GPPRelease 16Stage 2Support of Short Message Service (SMS) over generic 3GPP Internet Protocol (IP) accessTS

In this flow, the IP-SM-GW is in the PLMN of the CPM UE, but it could also be in the PLMN of the SMS user if that user was also a CPM user and had terminating user preferences to deliver the session invitation via SMS.

Figure B.3: Sending participant information changes to an SMS user in a group chat session

1) A group chat session including SMS user(s) set up by an IM or CPM user as described in clause B.1 steps 1-17.

2) The group chat AS detects change in participants of the group chat session (e.g. participant added or left the group chat session, that event is not shown in the flow).

3-4) As the IP-SM-GW has subscribed to participant information changes, the group chat AS notifies the IP-SM-GW about the participant change through the S-CSCF using an appropriate SIP method.

5-6) The IP-SM-GW acknowledges the notification.

7) According to operator policy, the IP-SM-GW translates the participant change notification to a Short Message (SMS- SUBMIT) and forwards it towards the group chat SMS-SC (SC Address) via the SMS-IWMSC (as described in TS 23.040 [2]). The text in the Short Message is defined by the operator and conveys appropriate information to the SMS user.

8) The SMS-IWMSC forwards the Short Messages (SMS- SUBMIT) to the group chat SMS-SC and the SMS is delivered to the SMS user using standard SMS procedures (see TS 23.040 [2]).

Annex C (informative):
Change History

Change history

Date

Meeting

TDoc

CR

Rev

Cat

Subject/Comment

New version

2007-12

SP-38

SP-070898

0036

1

B

New Annex: IM user sends an Instant Message to a group list including SMS users

8.0.0

2007-12

SP-38

SP-070898

0037

3

B

IM capable UE sends an Instant Message to an SMS user

8.0.0

2007-12

SP-38

SP-070898

0038

4

B

Relationship between SMSIP and Service level interworking

8.0.0

2007-12

SP-38

SP-070898

0039

4

B

Definition, Symbol, Abbreviation Clauses

8.0.0

2007-12

SP-38

SP-070898

0041

5

B

Status Report for IM to SMS IW

8.0.0

2007-12

SP-38

SP-070898

0043

2

B

Updating the scope for TS 23.204

8.0.0

2007-12

SP-38

SP-070898

0044

2

B

Concatenated Short Messages delivered as an large Instant Message

8.0.0

2007-12

SP-38

SP-070898

0045

2

B

IP-SM-GW Additional Features

8.0.0

2008-03

SP-39

SP-080109

0047

2

C

SC address retrieval for IM MO

8.1.0

2008-03

SP-39

SP-080108

0050

2

A

Correction to Reference

8.1.0

2008-03

SP-39

SP-080109

0053

D

Implementing the documentation guidance from SA#38

8.1.0

2008-03

SP-39

SP-080109

0056

F

IM to SM interworking procedure corrections

8.1.0

2008-03

SP-39

SP-080109

0058

2

B

Procedures when disposition notification is requested by IMS UE

8.1.0

2008-03

SP-39

SP-080109

0059

3

C

Adding architecture requirement for service level interworking

8.1.0

2008-03

SP-39

SP-080109

0060

2

C

Implementing the functionality for SC address retrieval

8.1.0

2008-03

SP-39

SP-080109

0061

1

F

General cleanup of the specification

8.1.0

2008-03

SP-39

SP-080109

0062

3

C

General cleanup of new clauses agreed in SA2#62

8.1.0

2008-03

SP-39

SP-080109

0063

3

C

Correctly adding SMS to IM interworking procedures and clean up

8.1.0

2008-06

SP-40

SP-080368

0064

1

C

Adding privacy functionality to the service level interworking

8.2.0

2008-06

SP-40

SP-080368

0065

2

C

IM delivery to unregistered IMS subscriber

8.2.0

2008-06

SP-40

SP-080368

0066

1

F

General Cleanup (cont’d)

8.2.0

2008-06

SP-40

SP-080368

0067

4

F

Deferred message when SMS is transport or service level interworked

8.2.0

2008-06

SP-40

SP-080368

0068

1

F

Corrections for IM termination call flow

8.2.0

2008-06

SP-40

SP-080368

0070

1

F

Architectural requirement corrections

8.2.0

2008-06

SP-40

SP-080368

0072

F

SMS delivery correction

8.2.0

2008-09

SP-41

SP-080585

0074

3

B

Update of TS 23.204 for SMS over IP procedures for E-UTRAN

8.3.0

2009-03

SP-43

SP-090111

0077

4

A

Correction of procedure for SM termination through the home network

8.4.0

2009-03

SP-43

SP-090106

0078

1

F

Reduction of unnecessary signalling

8.4.0

2009-12

SP-46

Update to Rel-9 version (MCC)

9.0.0

2010-03

SP-47

SP-100157

0085

B

IP-SM-GW enhancements for interworking with OMA CPM
(Rel-9 CR0087 not included as instructed on the Rel-9 CR)

10.0.0

2010-06

SP-48

SP-100336

0088

F

Scope and References Corrections of CPM-SMS IW

10.1.0

2010-06

SP-48

SP-100336

0089

F

Clarify routing of messages for processing in the IP-SM-GW

10.1.0

2010-09

SP-49

SP-100557

0090

1

F

NOTE corrections

10.2.0

2011-06

SP-52

SP-110343

0091

F

IP-SM-GW address handling clarification

11.0.0

2011-09

SP-53

SP-110469

0092

F

MCC Implementation correction to CR0091

11.1.0

2012-06

SP-56

SP-120240

0093

5

B

Server to MSISDN-less IMS UE direction in IMS

11.2.0

2012-12

SP-58

SP-120717

0095

2

F

Nokia Siemens Networks, LG Electronics

11.3.0

2012-12

SP-58

SP-120727

0096

2

B

SMS for IMS UE to IMS UE without MSISDN

12.0.0

2013-03

SP-59

SP-130091

0097

1

F

Clarification on MSISDN-less SMS operation

12.1.0

2013-06

SP-60

SP-130322

0101

2

A

Adding the interface between IP-SM-GW and MME

12.2.0

2013-09

SP-61

SP-130370

0103

1

A

IP-SM-GW with Diameter interfaces for SMS in MME

12.3.0

2013-12

SP-62

SP-130535

0104

B

IP-SM-GW and Gdd interface

12.4.0

2015-12

Update to Rel-13 version (MCC)

13.0.0

2016-06

SP-72

SP-160284

0108

A

SMS w/o MSISDN with removal of Sh interaction

13.1.0

2017-03

Update to Rel-14 version (MCC)

14.0.0

2018-03

SP-79

SP-180094

0109

1

F

MT SMS domain selection by IP-SM-GW

15.0.0

2018-03

SP-79

SP-180094

0110

2

F

Addition of description on SMSF address

15.0.0

2019-12

SP-86

SP-191089

0119

1

F

Alignment to 23.040 on UE reachability notification from IP-SM-GW

16.0.0