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3GPP Charging

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3GPP Charging

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    1. 2012/8/21 1 3GPP Charging

    2. 2012/8/21 2 Outline 3G charging logical architecture Charging functions CS domain PS domain IM Subsystem Service domain (MMS service)

    3. 2012/8/21 3 Charging Documents Structure

    4. 2012/8/21 4 3G charging logical architecture Create CDR HLR GMSC Server VMSC Server CGF SCF (not included in current spec.) MMS Relay Server

    5. 2012/8/21 5

    6. 2012/8/21 6 Charging functions Charging Gateway Function (CGF):within the Packet-Switched domain, provides a mechanism to transfer charging information from the SGSN and GGSN nodes to the network operator‘s chosen Billing Systems Charging Collection Function (CCF): main functionalities for IMS are in principle equivalent to the Charging Gateway Functions (CGF) that are used in the PS domain ? Session Charging Function (SCF): is responsible for Session Charging including the session control such as e.g. session termination. Bearer Charging Function (BCF): performs the Bearer Charging. Event Charging Function (ECF) :performs event-based charging (content charging).

    7. 2012/8/21 7 ECF Content Provider Charging Function (CPCF) :manages the account that is maintained for the content provider. Upon receipt of a charging request from the AS/MRFC, the CPCF processes the request and relays it to the SCCF. Subscriber Content Charging Function (SCCF):handles content charging requests that are made when the subscriber accesses the content. Upon such a content charging request, the SCCF may for example request the Correlation Function to check or to debit the subscriber's account. Content charging requests are received from the Content Provider Charging Function (CPCF)

    8. 2012/8/21 8 Offline IMS Charging architecture for non-roaming scenario

    9. 2012/8/21 9 Online IMS Charging architecture

    10. 2012/8/21 10

    11. 2012/8/21 11 Charging scenarios Mobile to Land (outgoing) call Incoming call to a roaming subscriber Delivery of a mobile terminated short message Incoming call handled by CAMEL without redirection Etc.

    12. 2012/8/21 12 Mobile to land call MSC-A:MOC record for subscriber “A” GMSC:outgoing gateway record

    13. 2012/8/21 13 Incoming call to a roaming subscriber GMSC:incoming gateway record HLR interrogation CDR GMSC:outgoing gateway record GMSC:roaming record inculde IMSI of “B” MSC-B:MTC record for the call to “B” TAP record

    14. 2012/8/21 14 Delivery of a mobile terminated short message MSC:SMT record HLR:HLR interrogation record GMSC:SMS gateway MT record

    15. 2012/8/21 15 Incoming call handled by CAMEL without redirection GSMC: Incoming gateway record, Terminating CAMEL MSC:MTC record HLR:HLR interrogation record (2)Interrogate HLR, fetch the T-CSI (3.1)GMSC request gsmSSF to pass CAMEL service key to gsmSCF to indicate which service logic it should apply (3.2)gsmSCF interrogate HLR for subscriber information (4)GMSC interrogate the HLR to get current location

    16. 2012/8/21 16 Packet-Switched Domain Specified in TS 32.215 Charging Principles Charging scenarios

    17. 2012/8/21 17 Charging Principles Charging Information Usage of the radio interface, usage duration and etc. Charging for SMS SGSN provide an S-SMO-CDR, S-SMT-CDR Charging support for CAMEL Charging Data Collection S-CDR,G-CDR,M-CDR,S-SMO-CDR,S-SMT-CDR

    18. 2012/8/21 18

    19. 2012/8/21 19 CDR generation Charging Data in the SGSN (S-CDR); Charging Data in the GGSN (G-CDR); Mobile Station Mobility Management Data in SGSN (M-CDR); SMS Mobile Originated Data in SGSN (S-SMO-CDR); SMS Mobile Terminated Data in SGSN (S-SMT-CDR); Mobile Originated location request in SGSN (LCS-MO-CDR); etc.

    20. 2012/8/21 20 Charging scenarios Mobile to PDN Context Mobile to Mobile Context PDN to Mobile Context Mobile to PDN Context while roaming, GGSN in HPLMN

    21. 2012/8/21 21 Mobile to PDN Context

    22. 2012/8/21 22 Mobile to PDN Context while roaming via BG

    23. 2012/8/21 23 IMS Subsystem Specified in TS 32.225 Off-line Charging On-line Charging

    24. 2012/8/21 24 Introduction Offline Charging IMS network elements report accounting information CCF construct and format CDRs Online Charging AS and MRFC report accounting information ECF uses charging event to support OCS

    25. 2012/8/21 25

    26. 2012/8/21 26

    27. 2012/8/21 27 Offline Charging Based on CDRs collection Successful case and Scenarios Message Flow Error Cases and Scenarios Reception of SIP error messages CCF Connection Failure No Reply from CCF Duplicate Detection CCF Detected Failure

    28. 2012/8/21 28

    29. 2012/8/21 29

    30. 2012/8/21 30

    31. 2012/8/21 31

    32. 2012/8/21 32

    33. 2012/8/21 33

    34. 2012/8/21 34 On-line charging Basic principles Basic operation Charging scenarios

    35. 2012/8/21 35 Online Charging(1/3) Based on charging event creation Immediate Event Charging (IEC) Accounting-Record-Type EVENT_RECORD Successful case and Scenarios Message Flow Error Cases and Scenarios Reception of SIP error messages Debit Units Operation Failure Duplicate Detection

    36. 2012/8/21 36

    37. 2012/8/21 37 Online Charging(2/3) Event Charging with Unit Reservation (ECUR) Accounting-Record-Type START/INTERIM/STOP_RECORD Successful case and Scenarios Message Flow Error Cases and Scenarios Reception of SIP error messages Reserve Units and Debit Units Operation Failure Duplicate Detection

    38. 2012/8/21 38

    39. 2012/8/21 39 Online Charging(3/3) Support of Tariff Switch Using Acct-Interim-Interval AVP Using the Tariff Switch Time AVP

    40. 2012/8/21 40

    41. 2012/8/21 41 Basic principles Unit determination :refers to the calculation of the number of non-monetary units (service units, data volume, time and events) that shall be assigned prior to starting service delivery. Rating :refers to the calculation of a price out of the non-monetary units calculated by the unit determination function. Both can be implemented centralized, i.e. on the ECF, or decentralized, that is, on the AS/MRFC. Two cases for online event charging can be distinguished: immediate event charging and event charging with unit reservation.

    42. 2012/8/21 42 Basic principle (cont.) immediate event charging, granting units to the AS/MRFC is performed in a single operation that also includes the deduction of the corresponding monetary units from the subscriber's account. event charging with unit reservation includes also the process of requesting, reserving and possibly returning units. The deduction of the corresponding monetary units then occurs upon conclusion of the event charging transaction

    43. 2012/8/21 43 Basic Operations "Debit Units Request"; sent from AS/MRFC ? ECF After receiving a service request from the subscriber, the AS/MRFC sends a Debit Units Request to the ECF. The AS/MRFC may either specify a service identifier (centralised unit determination) or the number of units requested (decentralised unit determination) "Debit Units Response"; sent from ECF ? AS/MRFC The ECF replies with a Debit Units Response, which informs the AS/MRFC of the number of units granted as a result of the Debit Units Request "Reserve Units Request"; sent from AS/MRFC ? ECF Request to reserve a number of units for the service to be provided by an AS/MRFC. "Reserve Units Response"; sent from ECF ? AS/MRFC Response from the ECF which informs the AS/MRFC of the number of units that were reserved as a result of the "Reserve Units Request".

    44. 2012/8/21 44 Immediate Event Charging (1)Decentralized Unit Determination and Centralized Rating (2)Centralized Unit Determination and Centralized Rating (3)Decentralized Unit Determination and Decentralized Rating

    45. 2012/8/21 45

    46. 2012/8/21 46

    47. 2012/8/21 47

    48. 2012/8/21 48 Event charging with reservation unit (1)Decentralized Unit Determination and Centralized Rating (2)Centralized Unit Determination and Centralized Rating (3)Decentralized Unit Determination and Decentralized Rating

    49. 2012/8/21 49

    50. 2012/8/21 50

    51. 2012/8/21 51

    52. 2012/8/21 52 Application Services (MMS) Specified in TS 32.235 Charging Principles Usage of the MMS resources Storage duration Usage of the general Packet-Switched domain resources Etc. Charging scenarios

    53. 2012/8/21 53 Charging scenarios Originator and Recipient MMS Relay Server are the same Originator and Recipient MMS Relay Server are not the same MMBox management MMS VAS Application

    54. 2012/8/21 54 Originator and Recipient MMS Relay Server are not the same

    55. 2012/8/21 55 MMS VAS Application

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