12 Subscriber Mobile Number Portability status retrieval

23.0783GPPCustomised Applications for Mobile network Enhanced Logic (CAMEL) Phase 4Release 17Stage 2TS

Support of the procedures described in this clause in CAMEL Phase 4 is a network operator option.

12.1 Architecture

12.1.1 Functional Entities used for CAMEL

This clause describes procedures for the retrieval of subscriber Mobile Number Portability (MNP) information.

The gsmSCF may request subscriber MNP information of a mobile station from the MNP Signalling Relay Function (MNP SRF).

Figure 12.1 indicates the functional entities involved in the procedures for the retrieval of MNP information.

Figure 12.1: Functional architecture for CAMEL Support of providing MNP information

gsmSCF: see subclause 3.1.

MNP SRF: A functional entity that supports the mobile number portability of a mobile station, which is described in 3GPP TS 23.066 [17].

Recipient Network: Network that receives the number in the porting process. This network becomes the subscription network when the porting process is complete. See 3GPP TS 23.066 [17].

Number Range Holder Network: Network to which the number range containing the ported number has been allocated. See 3GPP TS 23.066 [17].

12.1.2 Interfaces defined for CAMEL

This subclause describes the interfaces applicable to CAMEL. It specifies on a high level the functions specific to CAMEL.

12.1.2.1 gsmSCF – MNP SRF interface

This interface is used by the gsmSCF to request MNP information from the MNP SRF at any time.

12.1.2.2 MNP SRF – gsmSCF interface

This interface is used by the MNP SRF to return the requested MNP information to the gsmSCF, as requested by the gsmSCF via the Any Time Interrogation procedure.

12.2 Procedures for CAMEL

12.2.1 Provide MNP Information

12.2.1.1 CAMEL_Provide_MNP_Info with ATI

The process for providing MNP information with Any Time Interrogation (ATI) is the following:

– CAMEL_ATI_MNP.

Sheet 1: Details of the task box "Query Number Portability Database" may be obtained from 3GPP TS 23.066 [17]. The task box returns an indication whether the MSISDN is known or not.

Figure 12.2-1: Process CAMEL_ATI_MNP (sheet 1)

12.3 Description of information flows

This subclause contains the detailed description of the information flows used by CAMEL for the retrieval of MNP information about a subscriber.

Each Information Element (IE) is marked as Mandatory (M), Conditional (C), Specific conditions (S), mutually Exclusive (E) or not applicable (-).

An ‘M’ IE shall always be included. A ‘C’ IE shall be included if the sending entity has the necessary information to populate the IE. The conditions for the inclusion of an ‘S’ IE are shown in the ‘Description’ column of the definition table. When a set of ‘E’ IEs is shown in the definition of an Information Flow or compound IE, only one of those IEs may be included. A ‘-‘ IE shall always be omitted. This categorization is a functional classification, i.e. it defines the requirements for the stage 2 information. It is not a stage 3 classification to be used for the ASN.1 syntax of the protocol.

The following principles apply for the handling of the IEs by the receiving entity:

– The gsmSCF may silently discard any IE which it does not functionally support.

– The MNP SRF shall return an error if it does not functionally support an IE which it receives.

Details of errors and exceptions to these rules are specified in 3GPP TS 29.002 [34].

12.3.1 gsmSCF to MNP SRF information flows

12.3.1.1 Any Time Interrogation Request

12.3.1.1.1 Description

This IF is used by the gsmSCF to request the MNP information for subscribers from the MNP SRF at any time.

12.3.1.1.2 Information Elements

Information element name

Status

Description

gsmSCF Address

M

This IE indicates the address of the interrogating gsmSCF. The gsmSCF Address shall be in international E.164 format.

Requested Info

M

This IE indicates the type of subscriber information that is requested. It shall have the following value:

– MNP Requested Info.

Subscriber Identity

M

This IE identifies the subscriber for which the information is requested. The identity shall be:

– MSISDN.

12.3.2 MNP SRF to gsmSCF information flows

12.3.2.1 Any Time Interrogation ack

12.3.2.1.1 Description

This IF is used by the MNP SRF to provide the requested MNP information for the subscriber to the gsmSCF.

12.3.2.1.2 Information Elements

Information element name

Status

Description

MNP Information Result

M

This IE contains the MNP information for the subscriber. It is described in a table below.

MNP Information Result contains the following information:

Information element name

Status

Description

Routeing Number

C

This IE shall be present, if requested by the gsmSCF. Refer to 3GPP TS 23.066 [17].

IMSI

C

This IE shall be present, if requested by the gsmSCF. Refer to 3GPP TS 23.066 [17].

MSISDN

C

This IE shall be present, if requested by the gsmSCF. Refer to 3GPP TS 23.066 [17].

Number Portability Status

C

This IE shall be present, if requested by the gsmSCF. It may have one of the following values:

– Not Known To Be Ported;

– Own Number PortedOut;

– Foreign Number Ported To Foreign Network;

– Own Number Not Ported Out;

– Foreign Number Ported In.

Refer to 3GPP TS 23.066 [17].

Annex A (informative):
Handling of Apply Charging GPRS and Apply Charging Report GPRS

This Annex provides an example to demonstrate the handling of Apply Charging GPRS and Apply Charging Report GPRS.

Figure A.1: Example of Handling of Apply Charging GPRS and Apply Charging Report GPRS

In Figure A.1, data volumes transferred for the active PDP context are listed on the left-hand side of diagram. The following is a description of the example:

a) Apply Charging GPRS threshold set to 2000, no tariff switch timer set.

b) After 2000 units of data have been transferred, an Apply Charging Report GPRS is sent to the gsmSCF.

c) The gsmSCF sends another Apply Charging GPRS with a 2000 unit threshold.

d) After 2000 units of data have been transferred, an Apply Charging Report GPRS is sent to the gsmSCF.

e) Another threshold (2000) is set by the gsmSCF in Apply Charging GPRS, and a tariff switch timer is set.

f) After 2000 units have been transferred, Apply Charging Report GPRS is sent to the gsmSCF, as a tariff switch timer has expired since the last Apply Charging GPRS, values for volumeTariffSwitchInterval and Volume transferred since the tariff switch are sent. The gsmSCF stores the value volumeTariffSwitchInterval.

g) The gsmSCF sends another Apply Charging GPRS with a 2000 unit threshold.

h) After 2000 units of data have been transferred, an Apply Charging Report GPRS is sent to the gsmSCF.

i) Apply Charging GPRS sets a tariff switch timer, which does not expire before the next Apply Charging Report GPRS.

j) A change in QoS is reported so Apply Charging Report GPRS is returned to the gsmSCF containing VolumeIfNoTariffSwitch as no tariff switch has occurred since the last Apply Charging Report GPRS. The gsmSCF should store this value if the volume of data transferred at each QoS level is to be calculated. The Tsw sent in the previous Apply Charging GPRS is stopped. In this example the tariff switch timer (Tsw) does not expire before this QoS change. If Tsw had expired the Apply Charging Report GPRS would report the volumeTariffSwitchInterval in the normal way.

k) An Apply Charging GPRS is sent giving a new threshold. This threshold is service logic dependent and does not rely on any previous value sent. In the example it is ‘previous threshold – volume transferred since last threshold was set’.

l) The VolumeSinceLastTariffSwitch is reported in the Apply Charging Report GPRS. Note: this includes data transferred before and after the QoS change.

m) Note that a tariff switch timer is set and expires.

n) A final Apply Charging Report GPRS is returned containing the data volume transferred since the last tariff switch, and also the total volume transferred at the previous tariff.

The calculations made by the gsmSCF in this example are:

a) Total Data Volume Transferred in this example: Total of all volumeTariffSwitchInterval received + final volumeSinceLastTariff switch is (5500 + 5000) + 1500 = 12000 units of data

b) Data Volume transferred for each tariff: (periods separated by Tsw in figure A.1)

– 1st Tariff: taken from Apply Charging Report GPRS (signal f)) volumeTariffSwitchInterval = 5500 units of data

– 2nd Tariff: taken from Apply Charging Report GPRS (signal n)) volumeTariffSwitchInterval = 5000 units of data

– 3rd Tariff: taken from VolumeSinceLastTariffSwitch (signal n)) volumeTariffSwitchInterval = 1500 units of data

c) Data Volume Transferred at each QoS level (One QoS Change Occurs in figure A.1)

– 1st QoS level (up to signal 10): All volumeTariffSwitchIntervals + final VolumeSinceLastTariffSwitch at QoS change is 5500 + 3200 = 8700 units of data.

– 2nd QoS level (from signal 10 onwards): (Value of first VolumeTariffSwitchInterval received after QoS change – VolumeNoTariffSwitch Received directly after QoS change ) + Volume transferred since this tariff switch is (5000-3200) + 1500 = 3300 units of data.

Note: The volume reported to the gsmSCF in an Apply Charging Report GPRS may exceed the threshold sent in the previous Apply Charging GPRS, e.g. if the delta timer exceeds the threshold received in the subsequent Apply Charging GPRS or a data packet is transferred causing the threshold to be exceeded.

Annex B (informative):
Change history

Date

TSG #

TSG Doc.

CR

Rev

Subject/Comment

New

2003-12

CN#22

NP-030526

553

3

23.078-CR553 Collective CR for Rel-6 Enhanced Dialled Services

6.0.0

2003-12

CN#22

NP-0305628

645

1

Change of position armed with criteria (check criteria in MSC)

6.0.0

2003-12

CN#22

NP-030528

647

1

Enhancements for the Partial Implementation for "Change of position procedure armed with criteria"

6.0.0

2004-03

CN#23

NP-040137

649

1

Missing DisconnectLeg Result

6.1.0

2004-03

CN#23

NP-040137

651

1

Correction to DP description tables

6.1.0

2004-03

CN#23

NP-040094

652

EDS and DisconnectLeg interworking

6.1.0

2004-03

CN#23

NP-040090

656

DP Triggering without having armed the TDP

6.1.0

2004-03

CN#23

NP-040145

657

1

No receipt of Int_DP_Analysed_Information in state Monitoring

6.1.0

2004-03

CN#23

NP-040138

682

2

Enhancement of Event Specific Information for DP ‘Change of Position’

6.1.0

2004-03

CN#23

NP-040131

686

1

GPRS ODB reporting to CAMEL SCP

6.1.0

2004-03

CN#23

NP-040095

688

2

CAMEL4 SCUDIF notification during active call for prepay

6.1.0

2004-03

CN#23

NP-040138

689

1

NoReply timer clarification for follow-on calls

6.1.0

2004-03

CN#23

NP-040096

693

1

Adding the Layer Compatibility information elements over the gsmSSF – gsmSCF interface

6.1.0

2004-03

CN#23

NP-040136

694

Correction to dialed services triggering for NP and NC calls

6.1.0

2004-03

CN#23

NP-040136

695

Correction to No Answer handling (CAMEL_OCH_MSC2)

6.1.0

2004-03

CN#23

NP-040136

696

Correction to handling of DFC in CS_gsmSSF

6.1.0

2004-03

CN#23

NP-040136

697

Correction to both way through parameter for ETC and CTR

6.1.0

2004-03

CN#23

NP-040136

698

Correction to forwarded leg handling with Suppress O-CSI

6.1.0

2004-03

CN#23

NP-040136

699

Correction to ORLCF handling for CAMEL calls in VMSC

6.1.0

2004-03

CN#23

NP-040136

700

Handling of DFCWA in ETC and CTR procedures

6.1.0

2004-03

CN#23

NP-040137

701

Correction to CUG handling for NP calls

6.1.0

2004-03

CN#23

NP-040137

702

Correction to CAMEL_ICA_MSC (hanging connector)

6.1.0

2004-03

CN#23

NP-040137

703

Correction to Request Report BCSM Event handling in CSA_gsmSSF

6.1.0

2004-03

CN#23

NP-040137

704

Correction to Split Leg handling in CSA_gsmSSF

6.1.0

2004-03

CN#23

NP-040137

705

Correction to CS ID Prompt & Collect

6.1.0

2004-03

CN#23

NP-040137

706

Correction to SplitLeg preconditions

6.1.0

2004-03

CN#23

NP-040138

707

Correction to Disconnect Leg preconditions

6.1.0

2004-03

CN#23

NP-040136

708

Correction to Information Location at DP O_Term_Seized

6.1.0

2004-03

CN#23

NP-040138

710

Starting of Timer Tccd after ACR on DP ‘Change of Position’

6.1.0

2004-03

CN#23

NP-040137

711

Correction to Tssf timer at Apply Charging

6.1.0

2004-03

CN#23

NP-040137

712

Allowing Export_leg at DP Alerting and DP Answer

6.1.0

2004-06

CN#24

NP-040249

685

3

IP version of GGSN address for CAMEL

6.2.0

2004-06

CN#24

NP-040249

716

3

Enhancement to User Interaction

6.2.0

2004-06

CN#24

NP-040207

721

1

Correction to Tssf timer

6.2.0

2004-06

CN#24

NP-040207

722

Correction to D-CSI suppression in Continue With Argument

6.2.0

2004-06

CN#24

NP-040249

723

Correction to CS_gsmSSF for call release

6.2.0

2004-06

CN#24

NP-040249

724

Stopping charging timers after Cancel [All]

6.2.0

2004-06

CN#24

NP-040207

725

Correction to Move Leg pre-condition

6.2.0

2004-06

CN#24

NP-040207

726

Correction to InitialDP IF for NP leg

6.2.0

2004-06

CN#24

NP-040207

727

Correction to User Interaction before Answer

6.2.0

2004-06

CN#24

NP-040207

728

Correction to Entity Released for individual call party

6.2.0

2004-09

CN#25

NP-040405

732

2

Support of User-to-User Information (UUI) in CAMEL InitialDP operation

6.3.0

2004-09

CN#25

NP-040406

731

Correcting status in the procedure CAMEL_MT_CTR(sheet 4)

6.3.0

2004-09

CN#25

NP-040406

732

Redundantly modifying call parameter in CAMEL_MT_GMSC_Notify_CF

6.3.0

2004-09

CN#25

NP-040406

733

Correcting SDL of Process CS_gsmSSF(sheet 7)

6.3.0

2004-09

CN#25

NP-040406

735

2

Appended a note in Process CAMEL_ICA_MSC

6.3.0

2004-09

CN#25

NP-040406

737

Correction to CAP SCI for calls with multiple CAP dialogues

6.3.0

2004-09

CN#25

NP-040406

738

Correction to CAMEL_ICA_MSC1 and CAMEL_ICA_MSC2

6.3.0

2004-09

CN#25

NP-040406

739

Removal of Int_O_Exception from CAMEL_OCH_MSC2 and CAMEL_MT_GMSC_DISC5

6.3.0

2004-09

CN#25

NP-040406

740

Correction to CAMEL_Modify_CUG_Info

6.3.0

2004-09

CN#25

NP-040406

741

Correction to CAMEL_EXPORT_LEG_MSC procedure

6.3.0

2004-09

CN#25

NP-040406

743

Correction to CS_gsmSSF for EDS

6.3.0

2004-09

CN#25

NP-040406

744

Correction to CS_gsmSSF for Tcp expiry

6.3.0

2004-09

CN#25

NP-040406

745

Correction to Handle_ACR procedure for Tccd timer

6.3.0

2004-09

CN#25

NP-040406

747

Correction to any Time Interrogation

6.3.0

2004-09

CN#25

NP-040406

730

1

Editorial correction

6.3.0

2004-12

CN#26

NP-040525

748

5

Clarification on Outstanding Request Counter (ORC) handling at EDP-R or TDP-R resumption

6.4.0

2004-12

CN#26

NP-040544

749

2

Correcting SDL of Process CS_gsmSSF (sheet 62)

6.4.0

2004-12

CN#26

NP-040544

752

Correction to Change of Position handling in gsmSSF

6.4.0

2004-12

CN#26

NP-040544

753

1

Correction in Sheet 18 of Process CSA_gsmSSF

6.4.0

2004-12

CN#26

NP-040544

757

1

Warning Tone

6.4.0

2005-01

CS_gsmSSF SDL file updated

6.4.1

2005-03

CN#27

NP-050051

762

1

CR 693 not implemented

6.5.0

2005-06

CT#28

CP-050097

763

1

Correction to DP T_No_Answer

6.6.0

2005-06

CT#28

CP-050097

765

Correction to conditional triggering for SCUDIF call

6.6.0

2005-06

CT#28

CP-050083

767

1

Correction to CAMEL_MO_Dialled_Services

6.6.0

2005-06

CT#28

CP-050097

769

Correction to Outstanding Request Counter setting at IDP handling

6.6.0

2005-06

CT#28

CP-050083

772

Correction to No_Answer handling in CAMEL_ICA_MSC2

6.6.0

2005-06

CT#28

CP-050083

774

Correction to CAMEL_ICA_MSC1 and CAMEL_ICA_MSC2 for gsmSSF process checking

6.6.0

2005-06

CT#28

CP-050083

776

Correction to EDP-N handling for ICA legs in Process CS_gsmSSF

6.6.0

2005-06

CT#28

CP-050097

780

4

NoReply Timer clarification

6.6.0

2005-06

CT#28

CP-050103

764

1

CAMEL procedures for trunk originated services

7.0.0

2005-09

CT#29

CP-050312

781

1

Trunk Originated CAMEL triggering – SDLs (re-introduce CR770)

7.1.0

2005-09

CT#29

CP-050312

784

2

Additions and clarifications for CAMEL trunk originated services

7.1.0

2005-09

CT#29

CP-050309

786

Adding a missing reference

7.1.0

2005-09

CT#29

CP-050309

789

Correction on Outstanding Request Counter handling

7.1.0

2005-09

CT#29

CP-050309

791

Correction on T_Disconnect handling

7.1.0

2005-12

CT#30

CP-050626

0792

2

Trunk Originated CAMEL triggering – DTMF and CollectInfo parameters in SDL

7.2.0

2005-12

CT#30

CP-050626

0793

1

Modification Procedure CAMEL_OCH_LEG1_MSC 11(13)

7.2.0

2006-03

CT#31

CP-060082

0794

Specification of gsmSCF Address format in AnyTime request messages

7.3.0

2006-06

CT#32

CP-060311

0796

1

Addition of information related to service change

7.4.0

2006-06

CT#32

CP-060336

0797

2

List of MSISDNs and Basic Service Code for MAP Any Time Subscription Interrogation.

7.4.0

2006-06

CT#32

CP-060300

0798

1

Corrections of Process CS_gsmSSF

7.4.0

2006-09

CT#33

CP-060414

0806

1

Response to ATI for GPRS information when PSI not supported in the SGSN

7.5.0

2006-09

CT#33

CP-060414

0807

SGSN number to be included in the ATI response

7.5.0

2006-12

CT#34

CP-060695

0810

1

Optional Suppress Terminating Services Bit String in SRI

7.6.0

2007-03

CT#35

CP-070030

0813

1

Addition of SMS over IP functionality

7.7.0

2007-06

CT#36

CP-070328

0815

Mobile Termination whilst the MS is moving to another MSC

7.8.0

2007-06

CT#36

CP-070326

0816

1

Correction of IP-SM-GW update in the HSS

7.8.0

2007-06

CT#36

CP-070325

0822

2

Adding a Information Element to Continue Camel Handling Information Flow

7.8.0

2007-06

CT#36

CP-070325

0823

Mutually exclusive elements in Location Information in MSC for Initial DP SMS

7.8.0

2007-06

CT#36

CP-070325

0824

1

Correction to DTMF detection in alerting phase

7.8.0

2007-09

CT#37

CP-070540

0814

4

AC/ACR Handling

7.9.0

2007-09

CT#37

CP-070540

0826

Correction to the Send Info For Incoming Call ack Information Flow

7.9.0

2008-12

CT#42

Upgrade to Release 8 without technical change

8.0.0

2009-09

CT#45

CP-090524

0831

2

Correction on ACR and Warning Tone Play Handling of Leg 1 when successful move of a leg

8.1.0

2009-12

Update to Rel-9 version (MCC)

9.0.0

2010-03

CT#47

CP-100029

0832

1

User CSG Information for CAMEL

9.1.0

2010-09

CT#49

CP-100449

0835

1

Correction for SMS via SGs charging

9.2.0

2010-09

CT#49

CP-100467

0836

2

Addition of SS codes to the ATSI and ATM procedures

10.0.0

2011-09

CT#53

CP-110732

0837

2

Extension parameter for Release Call

11.0.0

2011-12

CT#54

CP-110780

0841

1

Provide Subscriber Information handling for UE under LTE

11.1.0

2012-03

CT#55

CP-120038

0842

2

EPS Location in IDP SMS

11.2.0

2012-06

CT#56

CP-120244

0843

EPS location in Initial DP

11.3.0

2012-06

CT#56

CP-120244

0844

EPS location in MAP Note MM Event

11.3.0

2012-09

CT#61

CP-130468

0845

Clarification of allowed values for SS-status in Any Time Modification procedure

12.0.0

2015-12

CT#70

Update to Rel-13 version (MCC)

13.0.0

2017-03

CT#75

Update to Rel-14 version (MCC)

14.0.0

2018-06

-CT#80

Update to Rel-15 version (MCC)

15.0.0

2020-07

Update to Rel-16 version (MCC)

16.0.0

2022-03

Update to Rel-17 version (MCC)

17.0.0