C.8 Registration of MME for SMS
23.2723GPPCircuit Switched (CS) fallback in Evolved Packet System (EPS)Release 17Stage 2TS
C.8.1 Request for registration
An MME supporting SMS in MME that needs to perform a registration with HSS shall follow the following procedure to become registered by the HSS also for SMS.
The following sequence shows the request for registration with the HSS for SMS in MME.
Figure C.8.1-1: MME registration for SMS
1. The UE initiates combined attach or combined TA/LA Update to an MME. A UE that only supports NB-IoT (see TS 23.401 [2]) may issue an EPS attach or TA Update instead of a combined attach or combined TA/LA Update.
2. The MME sends a Location Update Request (SMS in MME feature flag, MME address for MT-SMS routing, RegistrationForSMSRequest, "SMS-only" Indication) message to HSS. SMS in MME feature flag indicates that the MME is capable of SMS transfer without the need of establishing an SGs association with an MSC. The "SMS-only" Indication is included if it has been included in the request from the UE. The MME includes one of the following RegistrationForSMSRequest values based on the criteria shown in Table C.8.1-1.
Table C.8.1-1: Registration For SMS Request values
Value |
Description |
SMS in MME Required |
– MME does not support SGs; or – The MME can be configured to use this value when the UE indicates "SMS only" or when known that the subscription is "PS and SMS only". NOTE 1 |
SMS in MME Not Preferred |
– The MME can be configured to use this value when the UE indicates "SMS only" or when known that the subscription is "PS and SMS only" – The MME can be configured to use this value when the UE does not indicate "SMS only" (i.e. requests CSFB) and the MME has no subscriber data yet (when MME is configured to use SGs for "SMS and PS only" subscription). NOTE 2 |
No Preference for SMS in MME |
– The MME has no preference configured to use SMS in MME or SGs, but both options are available from MME perspective. NOTE 2 |
NOTE 1: If this is set the HSS cannot determine whether the SGs is available.
NOTE 2: If this value is set it means that the MME supports SGs. UE might or might not indicate "SMS-only".
3. If the HSS supports SMS in MME and the subscription includes SMS:
a) if one or more of the following is true:
– Network Access Mode is PS only; or
– the MME indicates "SMS in MME Required";
then the HSS shall register the MME for SMS;
b) if the MME indicates "No Preference for SMS in MME" and Network Access Mode is not equal to PS only but one or more of the following are true:
– the UE indicated "SMS-only";
– the subscription is limited to PS domain services and SMS service via the CS and the PS domain ("PS and SMS only");
then the HSS should register the MME for SMS;
NOTE 3: The HSS can decide not to register the MME for SMS since it knows that the MME supports SGs but the normal behaviour would be to register for SMS and avoid an SGs association.
c) if the MME indicates "SMS in MME Not Preferred" and Network Access Mode is not equal to PS only then the HSS should not register the MME for SMS;
NOTE 4: The HSS can decide to register the MME for SMS based on the "PS and SMS only" setting and also on other factors including the UE indication for "SMS-Only", it is however assumed the normal behaviour would be not to register for SMS.
d) otherwise the HSS shall not register the MME for SMS.
If HSS registered the MME for SMS, the HSS stores the MME address for MT SMS.
4. If the HSS accepts to register the MME identity as an MSC identity for terminating SMS services then the HSS cancels the MSC/VLR registration from the HSS.
5. The HSS sends a Location Update Answer (indication whether the MME has been registered for SMS, subscription data including the Network Access Mode and "PS and SMS only" indications, SMS subscription data, SMS in MME feature flag) message to MME.
If the HSS does not register the MME for SMS, it shall indicate that the MME has not been registered for SMS and not include any SMS subscription data.
SMS in MME feature flag indicates that the HSS is capable of supporting the SMS in MME feature.
The MME stores the returned data and checks the result of registering the MME for SMS.
If the registration for SMS was not accepted, the MME does following:
a. For a PS-only subscription (i.e. the Network Access Mode in the subscription equals "PS-only"), the MME shall not establish any SGs association (no SMS services are provided to the UE).
b. For a "PS and SMS only" subscription where SMS can be provided over CS (i.e. the Network Access Mode equals "PS+CS" and the subscription parameter "PS and SMS only" is set), the MME tries to establish SGs for SMS.
c. For a PS and CS subscription where also other CS services are allowed (i.e. Network Access Mode equals "PS+CS" and the subscription parameter "PS and SMS only" is not set), the MME tries to establish SGs for SMS and other CS services.
C.8.2 Removal of registration of MME for SMS
C.8.2.0 General
The removal of the registration of MME for SMS is used by:
– The HSS to inform the MME that the registration of MME for SMS is cancelled; or by
– The MME to inform the HSS that it requests to remove its registration for SMS.
C.8.2.1 HSS-initiated removal of registration of MME for SMS
When the HSS needs to indicate to the MME that it is no longer registered for SMS, (e.g. because of a removal of SMS subscription, CS location update, etc), the following procedure is applied.
Figure C.8.2-1: Cancellation of MME registration for SMS in MME
1. There is an event that shall trigger the cancellation of the MME being registered for SMS. This may for example be the removal of the SMS subscription for the UE, a CS location update, etc.
2. The HSS sends an Insert Subscriber Data Request (Remove SMS registration) message to the MME to inform the MME that it is no more registered for SMS in MME.
3. The MME sets its "MME Registered for SMS" parameter as not registered for SMS and the "SMS subscription data" is considered by the MME as invalid. It acknowledges with an Insert Subscriber Data Answer message to the HSS.
NOTE: A normal Cancel Location of MME which results in the MME no longer being registered for PS services for that UE will also render the MME not registered for SMS.
C.8.2.2 MME-initiated removal of registration of MME for SMS
When the MME needs to indicate to the HSS that it is no longer registered for SMS in HSS, (e.g. because the UE initiated a EPS attach only, TAU), the following procedure is applied.
Figure C.8.2-2: Removal of MME registration for SMS in HSS
1. There is an event that triggers the cancellation of the MME being registered for SMS. This may for example be an UE initiated EPS attach only or a TAU.
2. The MME sends a message to the HSS to inform the HSS to remove its registration for SMS in HSS.
3. The HSS cancels the SMS registration for the UE in the MME. It acknowledges and responds to the MME.
Annex D (informative):
Change history
Change history |
|||||||
---|---|---|---|---|---|---|---|
Date |
TSG # |
TSG Doc. |
CR |
Rev |
Cat |
Subject/Comment |
New |
2010-06 |
SP-48 |
SP-100444 |
0218 |
4 |
B |
CSFB triggered by LCS while UE is in active VoIP session |
10.0.0 |
2010-09 |
SP-49 |
SP-100531 |
0596 |
– |
A |
Removing UE rejection on CLI for 1x MT call |
10.1.0 |
2010-09 |
SP-49 |
SP-100531 |
0609 |
– |
A |
Correction to the paging issue for CS fallback capable UEs in NMO II or III |
10.1.0 |
2010-09 |
SP-49 |
SP-100541 |
0575 |
1 |
A |
Correction to Paging in MT CSFB |
10.1.0 |
2010-09 |
SP-49 |
SP-100541 |
0577 |
1 |
A |
CS domain access rights handling in CSFB |
10.1.0 |
2010-09 |
SP-49 |
SP-100541 |
0585 |
1 |
A |
Suspend clarification for CSFB |
10.1.0 |
2010-09 |
SP-49 |
SP-100544 |
0580 |
3 |
B |
eMPS CR for CSFB (reference, definition and overall description) |
10.1.0 |
2010-09 |
SP-49 |
SP-100544 |
0581 |
2 |
B |
eMPS CR for CSFB (attach procedure) |
10.1.0 |
2010-09 |
SP-49 |
SP-100544 |
0582 |
2 |
B |
eMPS CR for CSFB (Mobile Originating Call) |
10.1.0 |
2010-09 |
SP-49 |
SP-100544 |
0583 |
2 |
B |
eMPS CR for CSFB (Mobile Terminating Call) |
10.1.0 |
2010-09 |
SP-49 |
SP-100544 |
0597 |
1 |
B |
MPS Support for 1xCSFB – Intro and impacts to Network Elements |
10.1.0 |
2010-09 |
SP-49 |
SP-100544 |
0598 |
1 |
B |
MPS 1xCSFB impacts on MO and MT calls |
10.1.0 |
2010-09 |
SP-49 |
SP-100558 |
0589 |
2 |
F |
MSC reselection in case of roaming restriction |
10.1.0 |
2010-09 |
SP-49 |
SP-100558 |
0599 |
2 |
C |
Adding e1xCSFB support for dual Rx/Tx UE |
10.1.0 |
2010-12 |
SP-50 |
SP-100681 |
0587 |
7 |
A |
Multiple PLMNs selection in eNodeB |
10.2.0 |
2010-12 |
SP-50 |
SP-100691 |
0591 |
2 |
F |
Clarification of CSFB indication in Extended Service Request |
10.2.0 |
2010-12 |
SP-50 |
SP-100691 |
0614 |
2 |
F |
UE behaviour with ISR active after CSFB with suspended PS bearers |
10.2.0 |
2010-12 |
SP-50 |
SP-100691 |
0618 |
6 |
C |
Correction to CSFB MO flow |
10.2.0 |
2010-12 |
SP-50 |
SP-100681 |
0620 |
1 |
A |
Clarification on CSFB in idle mode |
10.2.0 |
2010-12 |
SP-50 |
SP-100681 |
0622 |
2 |
A |
Clarification on PLMN selection for CSFB |
10.2.0 |
2010-12 |
SP-50 |
SP-100709 |
0629 |
1 |
F |
MTC related NNSF in MME for SMS over SGs |
10.2.0 |
2010-12 |
SP-50 |
SP-100681 |
0636 |
2 |
A |
Correction to Abnormal Service Reject Procedure |
10.2.0 |
2010-12 |
SP-50 |
SP-100681 |
0642 |
– |
A |
CSFB with Release with Redirection to UMTS and ‘deferred SIB reading’ |
10.2.0 |
2011-01 |
– |
– |
– |
– |
– |
Update of LTE logo to LTE-Advanced logo |
10.2.1 |
2011-03 |
SP-51 |
SP-110059 |
0643 |
– |
A |
Correction on CLI in page message for 1x MT call |
10.3.0 |
2011-03 |
SP-51 |
SP-110064 |
0646 |
1 |
A |
S102 Redirection Timing |
10.3.0 |
2011-03 |
SP-51 |
SP-110076 |
0648 |
2 |
F |
CS PLMN reselection requirement for CSFB and RAT/LA checking |
10.3.0 |
2011-03 |
SP-51 |
SP-110064 |
0651 |
3 |
A |
PS Suspending Clarification |
10.3.0 |
2011-03 |
SP-51 |
SP-110064 |
0656 |
1 |
A |
SMS-CSFB cell ID reporting correction |
10.3.0 |
2011-03 |
SP-51 |
SP-110076 |
0660 |
1 |
F |
Correction about the paging area in case of no available stored TAI list in MME |
10.3.0 |
2011-03 |
SP-51 |
SP-110064 |
0663 |
1 |
A |
3GPP2 alignment for 1xCSFB MT |
10.3.0 |
2011-03 |
SP-51 |
SP-110076 |
0665 |
3 |
F |
3GPP2 alignment for 1xCSFB SMS MT |
10.3.0 |
2011-03 |
SP-51 |
SP-110064 |
0671 |
2 |
A |
CSFB procedures for other types of CS services |
10.3.0 |
2011-03 |
SP-51 |
SP-110064 |
0673 |
– |
A |
Correction to CSFB NACC/CCO |
10.3.0 |
2011-03 |
SP-51 |
SP-110076 |
0674 |
3 |
B |
Introduction of MT Roaming Forwarding for CSFB |
10.3.0 |
2011-04 |
– |
– |
– |
– |
– |
MCC Correction to History table version numbers |
10.3.1 |
2011-06 |
SP-52 |
SP-110330 |
0658 |
5 |
F |
Correction to CSFB procedure for UEs with LIPA PDN connections only |
10.4.0 |
2011-06 |
SP-52 |
SP-110335 |
0666 |
3 |
F |
Updating dual rx/tx e1xCSFB to use explicit UE support indicator |
10.4.0 |
2011-06 |
SP-52 |
SP-110335 |
0681 |
2 |
F |
RRC release with system information clarification |
10.4.0 |
2011-06 |
SP-52 |
SP-110327 |
0684 |
4 |
F |
Priority for terminating CSFB sessions for eMPS |
10.4.0 |
2011-06 |
SP-52 |
SP-110330 |
0686 |
3 |
F |
Interaction between LIPA and CSFB service |
10.4.0 |
2011-06 |
SP-52 |
SP-110335 |
0689 |
– |
F |
Correct detach procedure with ISR activated |
10.4.0 |
2011-06 |
SP-52 |
SP-110324 |
0691 |
– |
A |
Correction of PS suspension procedure in CSFB to GERAN A/Gb mode |
10.4.0 |
2011-06 |
SP-52 |
SP-110324 |
0694 |
1 |
A |
Correction of CSFB Paging to avoid the use of TMSI |
10.4.0 |
2011-09 |
SP-53 |
SP-110456 |
0702 |
2 |
A |
Clarification about suspend and resume handling |
10.5.0 |
2011-12 |
SP-54 |
SP-110738 |
0706 |
4 |
F |
Handling of SGs paging in VLR and MME failure cases |
10.6.0 |
2011-12 |
SP-54 |
SP-110738 |
0709 |
2 |
F |
VLR SGs paging retry |
10.6.0 |
2011-12 |
SP-54 |
SP-110738 |
0710 |
3 |
F |
Fast Return after CSFB |
10.6.0 |
2011-12 |
SP-54 |
SP-110733 |
0714 |
1 |
A |
Correction of CSFB Paging procedure in MME |
10.6.0 |
2011-12 |
SP-54 |
SP-110733 |
0717 |
2 |
A |
Separate LAU and RAU procedures in CS fallback procedure |
10.6.0 |
2012-03 |
SP-55 |
SP-120068 |
0725 |
2 |
A |
Clarification of LAU/RAU trigger for CSFB UE when ISR is activated |
10.7.0 |
2012-03 |
SP-55 |
SP-120066 |
0722 |
1 |
A |
Clarification of ISR activation condition for NMO II RAU and Periodic RAU |
10.7.0 |
2012-03 |
SP-55 |
SP-120066 |
0750 |
1 |
A |
Correction of system behaviour upon MME implicit detach timer expiry when SGs is associated and ISR is activated |
10.7.0 |
2012-03 |
SP-55 |
SP-120075 |
0703 |
3 |
F |
CM Service Request during MO-LR procedure |
10.7.0 |
2012-03 |
SP-55 |
SP-120075 |
0736 |
1 |
F |
Corrections to SGs paging for CSFB |
10.7.0 |
2012-03 |
SP-55 |
SP-120088 |
0705 |
2 |
F |
Clarification about ISR maintenance for CSFB |
11.0.0 |
2012-03 |
SP-55 |
SP-120088 |
0727 |
1 |
F |
Clarification of detach procedure when ISR is activated |
11.0.0 |
2012-03 |
SP-55 |
SP-120088 |
0729 |
– |
F |
Correction of reference |
11.0.0 |
2012-03 |
SP-55 |
SP-120088 |
0735 |
1 |
F |
Clarification about PLMN selection for CS domain |
11.0.0 |
2012-03 |
SP-55 |
SP-120086 |
0743 |
1 |
B |
ISR deactivation exception for PS only SMS |
11.0.0 |
2012-03 |
SP-55 |
SP-120086 |
0746 |
3 |
B |
SMS over SGs usage to support NAS procedures for PS only SMS |
11.0.0 |
2012-06 |
SP-56 |
SP-120239 |
0760 |
2 |
F |
Clarifying the feature definition for SMS in MME |
11.1.0 |
2012-06 |
SP-56 |
SP-120239 |
0761 |
7 |
F |
Correction of SMS in MME related Cancellation Processes |
11.1.0 |
2012-06 |
SP-56 |
SP-120240 |
0764 |
6 |
F |
UE Availability for SMS |
11.1.0 |
2012-06 |
SP-56 |
SP-120237 |
0766 |
1 |
A |
Handling of SMS over SGs in case of absent LAI |
11.1.0 |
2012-06 |
SP-56 |
SP-120237 |
0772 |
2 |
A |
Correction for downlink unreachable due to wrong suspending |
11.1.0 |
2012-06 |
SP-56 |
SP-120232 |
0793 |
2 |
A |
Correction of system behaviour upon PGW initiated last PDP Context Deactivation when SGs is associated and ISR is activated |
11.1.0 |
2012-06 |
SP-56 |
SP-120237 |
0795 |
4 |
A |
Partial VLR failure or VLR restart with CSFB and ISR |
11.1.0 |
2012-06 |
SP-56 |
SP-120246 |
0797 |
1 |
B |
Taking UE support/non-support of GERAN network sharing into account in CSFB |
11.1.0 |
2012-06 |
SP-56 |
SP-120240 |
0801 |
1 |
F |
Update to SMS in MME Architecture reference points |
11.1.0 |
2012-06 |
SP-56 |
SP-120251 |
0822 |
1 |
F |
Alignment with stage 3 for the condition to deactivate ISR by the SGSN |
11.1.0 |
2012-09 |
SP-57 |
SP-120486 |
0726 |
4 |
F |
SGs Support for MSC in Pool to avoid dual VLR registration. |
11.2.0 |
2012-09 |
SP-57 |
SP-120482 |
0809 |
3 |
F |
Clarification on ISR and ‘SMS in MME’ |
11.2.0 |
2012-09 |
SP-57 |
SP-120482 |
0830 |
4 |
F |
Correction of PS-only Feature Description |
11.2.0 |
2012-09 |
SP-57 |
SP-120482 |
0834 |
1 |
F |
SMS in MME consolidated description and updated scope |
11.2.0 |
2012-09 |
SP-57 |
SP-120485 |
0836 |
– |
C |
Removing NMO-III |
11.2.0 |
2012-12 |
SP-58 |
SP-120722 |
0810 |
6 |
F |
Network sharing impact on the CSFB |
11.3.0 |
2012-12 |
SP-58 |
SP-120717 |
0839 |
3 |
F |
Registration of MME for SMS |
11.3.0 |
2012-12 |
SP-58 |
SP-120713 |
0846 |
1 |
A |
Suitable cell selected after CSFB |
11.3.0 |
2013-03 |
SP-59 |
SP-130085 |
0848 |
– |
F |
Correction of when the MME shall send the CS domain operator to the VLR in case of network sharing |
11.4.0 |
2013-03 |
SP-59 |
SP-130081 |
0850 |
– |
A |
Correction to enhanced CSFB to 1xRTT |
11.4.0 |
2013-03 |
SP-59 |
SP-130080 |
0856 |
– |
A |
Priority setting for 1xCSFB correction |
11.4.0 |
2013-06 |
SP-60 |
SP-130305 |
0847 |
3 |
F |
Clarification on "SMS in MME" |
11.5.0 |
2013-06 |
SP-60 |
SP-130241 |
0863 |
2 |
A |
LAU-less Emergency call with CSFB |
11.5.0 |
2013-06 |
SP-60 |
SP-130309 |
0868 |
2 |
F |
Enabling terminating CS services for EPS/IMSI attached UE selecting a non-3GPP access |
11.5.0 |
2013-06 |
SP-60 |
SP-130211 |
0871 |
4 |
A |
CSFB interactions with IMS Emergency call |
11.5.0 |
2013-06 |
SP-60 |
SP-130223 |
0872 |
3 |
F |
Release of SGs association in case of SRVCC |
11.5.0 |
2013-06 |
SP-60 |
SP-130224 |
0873 |
2 |
F |
Handling of terminating CS services during IMS Call |
11.5.0 |
2013-06 |
SP-60 |
SP-130320 |
0874 |
3 |
F |
How CSFB UE return back to the former LTE PLMN |
11.5.0 |
2013-06 |
SP-60 |
SP-130320 |
0875 |
2 |
F |
Clarification for MME selection during NW-initiated CS Service procedure while UE is in IMS VoIP session |
11.5.0 |
2013-06 |
SP-60 |
SP-130320 |
0877 |
2 |
F |
CN signalling for allowing UE return to former LTE PLMN after CSFB |
11.5.0 |
2013-06 |
SP-60 |
SP-130212 |
0879 |
1 |
A |
MSC/VLR selection for MTC devices |
11.5.0 |
2013-09 |
SP-61 |
SP-130370 |
0881 |
1 |
F |
SMS in MME and SMS over IP |
11.6.0 |
2013-09 |
SP-61 |
SP-130376 |
0882 |
1 |
F |
Improve how CSFB UE return back to the former LTE PLMN |
11.6.0 |
2013-09 |
SP-61 |
SP-130376 |
0883 |
2 |
D |
Correction on 1xCSFB IMS interaction |
11.6.0 |
2013-09 |
SP-61 |
SP-130376 |
0889 |
2 |
F |
TMSI reallocation for CSFB/emergency handling with IMSI |
11.6.0 |
2013-09 |
SP-61 |
SP-130368 |
0892 |
1 |
A |
ISR with CSFB/ emergency handling with IMSI |
11.6.0 |
2013-09 |
SP-61 |
SP-130376 |
0893 |
2 |
F |
Corrections to UE return to last used LTE PLMN after CSFB |
11.6.0 |
2013-09 |
SP-61 |
SP-130362 |
0880 |
3 |
F |
Fix CSFB MT call failure due to HO |
11.6.0 |
2013-09 |
SP-61 |
SP-130385 |
0885 |
2 |
C |
Adding a recommendation on hysteresis mechanism for WORM feature |
12.0.0 |
2013-12 |
SP-62 |
SP-130533 |
0861 |
7 |
C |
Call Independent supplementary services with CSFB |
12.1.0 |
2013-12 |
SP-62 |
SP-130525 |
0896 |
2 |
A |
Earlier provision of the former last used LTE PLMN ID |
12.1.0 |
2013-12 |
SP-62 |
SP-130525 |
0897 |
2 |
A |
SS service ID used in the Paging message |
12.1.0 |
2013-12 |
SP-62 |
SP-130522 |
0899 |
1 |
A |
MME initiated removal of registration of MME for SMS |
12.1.0 |
2013-12 |
SP-62 |
SP-130526 |
0900 |
2 |
F |
Correction of the extended service request procedure for LIPA and SIPTO@LN |
12.1.0 |
2013-12 |
SP-62 |
SP-130525 |
0901 |
– |
A |
Correction of resume procedure after CSFB |
12.1.0 |
2013-12 |
SP-62 |
SP-130525 |
0903 |
1 |
A |
CS MO indication to VLR via SGs |
12.1.0 |
2013-12 |
SP-62 |
SP-130540 |
0907 |
2 |
F |
Resuming PS services that have been handed over to non-3GPP |
12.1.0 |
2014-03 |
SP-63 |
SP-140098 |
0918 |
– |
A |
Supporting priority services in 1xCSFB |
12.2.0 |
2014-03 |
SP-63 |
SP-140111 |
0919 |
– |
F |
Correction of MT procedures in active mode |
12.2.0 |
2014-06 |
SP-64 |
SP-140250 |
0925 |
3 |
A |
Correction of CSFB priority and eMLPP handling |
12.3.0 |
2014-06 |
SP-64 |
SP-140256 |
0927 |
1 |
A |
How to transfer the last used LTE PLMN identity for CSFB to UTRAN |
12.3.0 |
2014-06 |
SP-64 |
SP-140251 |
0930 |
1 |
A |
Correction on priority paging |
12.3.0 |
2014-06 |
SP-64 |
SP-140377 |
0931 |
1 |
F |
New CSFB high priority indication for eMPS and emergency call |
12.3.0 |
2014-06 |
SP-64 |
SP-140377 |
0932 |
– |
F |
Correction of ISR requirements for SGSN |
12.3.0 |
2014-06 |
SP-64 |
SP-140252 |
0935 |
1 |
A |
Handling CSFB request when VoLTE call is on-going in non SRVCC capable network/UE |
12.3.0 |
2014-09 |
SP-65 |
SP-140425 |
0938 |
– |
F |
Corrections to message names |
12.4.0 |
2015-03 |
SP-67 |
SP-150109 |
0941 |
2 |
F |
Paging without LAI |
12.5.0 |
2015-06 |
SP-68 |
SP-150224 |
0946 |
– |
A |
Correction of CSFB references for CS domain priority schemes |
12.6.0 |
2015-06 |
SP-68 |
SP-150239 |
0939 |
6 |
C |
Enable ISR for PS-only UE |
13.0.0 |
2015-09 |
SP-69 |
SP-150501 |
0947 |
2 |
B |
Mobile Terminating SMS handling for extended I-DRX |
13.1.0 |
2015-12 |
SP-70 |
SP-150614 |
0953 |
2 |
F |
Correction of references to parts of Detach procedures |
13.2.0 |
2015-12 |
SP-70 |
SP-150611 |
0954 |
1 |
F |
MT-SMS triggered Paging handling for extended DRX UE |
13.2.0 |
2015-12 |
SP-70 |
SP-150614 |
0955 |
1 |
F |
Correction on condition of CSFB MO |
13.2.0 |
2016-03 |
SP-71 |
SP-160161 |
0961 |
1 |
B |
SMS support with EPS attach and TAU |
13.3.0 |
2016-06 |
SP-72 |
SP-160289 |
0956 |
4 |
B |
MT SM retransmission by the SMS GMSC to a UE in eDRX at the time requested in the Delivery Report |
13.4.0 |
2016-06 |
SP-72 |
SP-160289 |
0957 |
4 |
B |
Prioritized SM retransmission by the SMS SC when the UE becomes reachable |
13.4.0 |
2016-06 |
SP-72 |
SP-160289 |
0960 |
4 |
B |
MT SM transmission to a UE in eDRX within the SM-Delivery-Start-Time/Timer |
13.4.0 |
2016-06 |
SP-72 |
SP-160435 |
0964 |
2 |
F |
Support for SMS using CP optimisation for CIOT |
13.4.0 |
2016-06 |
SP-72 |
SP-160289 |
0956 |
4 |
B |
MT SM retransmission by the SMS GMSC to a UE in eDRX at the time requested in the Delivery Report |
13.4.0 |
2016-06 |
SP-72 |
SP-160289 |
0957 |
4 |
B |
Prioritized SM retransmission by the SMS SC when the UE becomes reachable |
13.4.0 |
2016-06 |
SP-72 |
SP-160289 |
0960 |
4 |
B |
MT SM transmission to a UE in eDRX within the SM-Delivery-Start-Time/Timer |
13.4.0 |
2016-06 |
SP-72 |
SP-160435 |
0964 |
2 |
F |
Support for SMS using CP optimisation for CIOT |
13.4.0 |
2017-03 |
– |
– |
– |
– |
– |
Update to Rel-14 version (MCC) |
14.0.0 |
2017-09 |
SP-77 |
SP-170714 |
0969 |
1 |
A |
Alignment with stage 3 on handling of Mobile Terminating SMS handling for extended I-DRX |
14.1.0 |
2017-09 |
SP-77 |
SP-170723 |
0970 |
2 |
F |
Correction on combined attach for NB-IoT UE for TS 23.272 in R14 |
14.1.0 |
2017-12 |
SP-78 |
SP-170910 |
0972 |
2 |
A |
Alignment with stage 3 of HLCOM aspect on Mobile Terminating SMS handling |
14.2.0 |
2017-12 |
SP-78 |
SP-170724 |
0973 |
1 |
B |
Introduction of Service Gap Control |
15.0.0 |
2020-07 |
SP-88E |
– |
– |
– |
– |
Update to Rel-16 version (MCC) |
16.0.0 |
2021-09 |
SP-93E |
SP-210932 |
0974 |
– |
F |
Reject Paging for CS domain paging |
17.0.0 |