WO2006116894A1 - Méthode de réglage souple de mode de facturation dans un système ims - Google Patents
Méthode de réglage souple de mode de facturation dans un système ims Download PDFInfo
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- WO2006116894A1 WO2006116894A1 PCT/CN2005/000600 CN2005000600W WO2006116894A1 WO 2006116894 A1 WO2006116894 A1 WO 2006116894A1 CN 2005000600 W CN2005000600 W CN 2005000600W WO 2006116894 A1 WO2006116894 A1 WO 2006116894A1
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- WIPO (PCT)
- Prior art keywords
- charging
- information
- application server
- attribute value
- charging mode
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/10—Payment architectures specially adapted for electronic funds transfer [EFT] systems; specially adapted for home banking systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/57—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP for integrated multimedia messaging subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/70—Administration or customization aspects; Counter-checking correct charges
- H04M15/765—Linked or grouped accounts, e.g. of users or devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/24—Accounting or billing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
- H04M2215/20—Technology dependant metering
- H04M2215/208—IMS, i.e. Integrated Multimedia messaging Subsystem
Definitions
- the present invention relates to a charging control technology in an Internet Protocol Multimedia Subsystem (IMS), and more particularly to a method and system for flexibly configuring real-time charging and non-real-time charging for different applications in an IMS system.
- IMS Internet Protocol Multimedia Subsystem
- the Internet Protocol Multimedia Subsystem is the (all-generation cooperation project).
- the all-IP-based network that provides Internet Protocol multimedia services introduced in the fifth version has been further refined and enhanced in the sixth version.
- the feature is to implement end-to-end Internet Protocol multimedia session call control using Internet Protocol application level signaling SIP (Session Initiation Protocol) and provide flexible and scalable service configuration capabilities.
- SIP Session Initiation Protocol
- the IMS system provides non-real-time offline charging and real-time online charging.
- the application server (AS) obtains charging and service related information from the Home Subscriber Server (HSS) in this way: between the HSS and the Serving Call State Control Function Unit (S-CSCF)
- HSS Home Subscriber Server
- S-CSCF Serving Call State Control Function Unit
- the Cx interface sends the information to the S-CSCF, which then sends the information to the AS through an ISC interface with the AS.
- the Cx interface uses the Diameter protocol for communication
- the ISC interface between the S-CSCF and the AS uses the SIP protocol for communication.
- the IETF Internet Engineering Task Force
- the charging information on the Cx interface is transmitted from the HSS to the S-CSCF through the Diameter command such as Server-Assignment-Answer (SAA) > Push-Profile-Request (PPR).
- the SAA command is a response of the HSS to the Server-Assignment-Request (SAR) request command initiated by the S-CSCF during the UE (User Equipment) registration process, and the PPR is successfully succeeded.
- SAR Server-Assignment-Request
- the user subscription information update command initiated by the HSS to the S-CSCF when the subscription information of the user changes after registration.
- the charging information is given by an AVP (Attribute Value Pair) "Charging-Information" of the type "Grouped” carried by the SAA, PPR, etc., and the AVP further includes "Primary- Event-Charging-Function-Name " , " Secondary- Event-Charging-Function-Name " , " Primary-Charging- Collection-Function-Name " and “ Secondary-Charging - Collection-Function-Name” of type "DiameterURI” AVPs, which respectively correspond to the addresses of the basic ECF, the second ECF, the basic CCF, and the second CCF, wherein the second ECF and the second CCF are provided to support the redundancy configuration of the charging system to ensure high reliability of charging.
- AVP Attribute Value Pair
- Figure 4 and Figure 5 respectively show the message format of the Diameter command Server- Assignment-Answer (SAA) and Push-Profile-Request (PPR) defined by TS29.229 in ABNF (Augmented Backus-Naur Form) syntax.
- SAA Diameter command Server- Assignment-Answer
- PPR Push-Profile-Request
- ABNF Advanced Backus-Naur Form
- AVP is of type " OctetString"
- User-Data is the user service information described in XML (Extensible Markup Language) format.
- the AVP "Charging-Information” of type “Grouped” gives the charging function address associated with the user's contracted service.
- a VP "Charging-Information” should also exist at the same time, and at least the basic CCF address must be provided.
- Figure 6 further shows the UML (Universal Modeling Language) of the above-mentioned user service information defined by TS 29.228 (see TJML can refer to http: ⁇ www.omg.org/uml) model, in order to simplify the class not shown in the figure ( Class ) attribute (attribute).
- a user's business information is represented by the "IMS Subscription” class, and an instance of the "IMS Subscription” class consists of one or more "Service Profile” classes, and "Service Profile” An instance of a class is again made up of one or more "Public Identification” classes. For example, zero or one instance of the "Core Network Service Authorization” class, zero or more instances of the "Initial Filter Criteria” class, and zero or more "Shared iFC” An instance of the Set” (shared iFC collection) class.
- Figure 7 further shows the UML model of the "Initial Filter Criteria” class. As you can see, an instance of the "Initial Filter Criteria” class consists of zero or one.
- An instance of the (application server) class, and an instance of the "Trigger Point” class is composed of one or more instances of the "Service Point Trigger” class, an instance of the "Application Server” class is Zero or one instance of the "Service Information” class. among them,
- the "Application Server” class specifies the AS that provides the corresponding service when the service trigger point in the initial filtering criterion (iFC) is triggered.
- iFC initial filtering criterion
- Application Server,, class has two properties, namely ServerName and DefaultHandling , where ServerName gives the SIP URL (Universal Resource Locator) of the application server, and DefaultHandling takes the value.
- SIP URL Universal Resource Locator
- the S-CSCF obtains the charging information (that is, the charging function address) through the Cx interface, it transmits the information to the AS through the ISC interface.
- the dedicated SIP message header P-defined by 3GPP Charging- Function-Addresses can be used for this purpose.
- the initial filtering criterion (iFC) provided to the subscription information with the user is obtained.
- the matching application server initiates a third-party registration, and the charging function address of the AS is carried by the message header P-Charging-Function-Addresses of the SIP message registered by the third party.
- the S-CSCF will also be sent by the SIP message before forwarding to the corresponding AS.
- the header P-Charging-Function-Addresses carries the charging function address of the AS.
- the AS can determine the charging method used by the AS, and this judgment is obtained by the SIP message header P-Charging-Function-Addresses from the ISC interface, that is, if the AS only If the address of the CCF is received and the ECF address is not received, the offline charging is performed through the Rf interface. If the AS only receives the ECF address, it performs online charging through the Ro interface.
- the AS receives the ECF and CCF addresses at the same time, Simultaneously through these two interfaces, however, it is not clear in the existing 3GPP specifications that the S-CSCF is sent to the ASs via the ISC interface without change by the Cx interface AVP "Charging-Information".
- the AS is also provided with the relevant charging function address to the AS through the ISC interface.
- the user service data obtained by the S-CSCF from the Cx interface does not indicate the charging method used by the application subscribed by the user.
- the prior art only allows the former method to be used. That is to say, the charging function address sent by the S-CSCF to each AS via the ISC interface will be identical, so all the subscription services for a certain UE. But to use the same accounting methods.
- the S-CSCF also supports offline and online charging.
- the prior art does not provide the indication information of the charging mode adopted by the S-CSCF itself. Therefore, when the Cx interface AVP is "Charging" When both -CCF and ECF are included in -Information", the S-CSCF will not be able to determine the charging method used. Since the online charging of the S-CSCF is implemented by the IMS-GWF (IMS Gateway Function Unit), the IMS-GWF is also an application server for the S-CSCF (for example, the IMS-GWF can be regarded as an application server of the IMS prepaid service) Therefore, the problem can also be attributed to the same problem as above.
- IMS-GWF IMS Gateway Function Unit
- billing and service related information can also be sent by the HSS to the AS via the Sh interface directly to the AS.
- the charging information obtained by the Sh interface is transmitted from the HSS to the AS through the Diameter command such as User-Data-Answer (UDA), Push-Notification-Request (PNR).
- UDA User-Data-Answer
- PNR Push-Notification-Request
- AVP "Data-Reference" carried by the AS-initiated User-Data-Request (UDR) command indicates that the requested user data includes a billing letter
- the HSS will give the above charging information in the AVP "User-Data" in response to the command UDA.
- the HSS will be in the PNR command when the user's subscription information changes.
- the above billing information is given in the A VP "User-Data”.
- the AVP "User-Data" of the Sh interface is described in the XML (Extensible Markup) language, it includes the charging function address information and the Cx interface is the same as the charging function address information given by Diameter's AVP. The data structure and usage are the same.
- the AS obtains the above charging function address from the Sh interface, provided that the Sh interface exists between the AS and the HSS and the AS is in the same trust domain as the S-CSCF to which it is connected. Therefore, for some applications that do not provide a Sh interface, such as a PoC (PTT over Cellular) service, or an application provided by a third-party service provider, the AS cannot obtain the corresponding charging function address from the Sh interface.
- a Sh interface such as a PoC (PTT over Cellular) service, or an application provided by a third-party service provider
- the AS obtains the above charging function address from the Sh interface and is not equivalent to obtaining the above charging function address from the ISC interface, but only in some special cases.
- the charging function address is obtained through the Sh interface, for example, when the AS needs the foregoing charging function address before receiving the third-party registration from the ISC interface;
- the charging function received from the ISC interface Address priority that is, using the charging function address received from the ISC interface and ignoring the charging function address received from the Sh interface.
- the AS obtains the function of different charging function addresses respectively.
- the AS adopts a pre-static configuration of the ECF or CCF address locally, so that the AS adopts a different charging function address setting different from the IMS system.
- the static configuration will cause all users to adopt the same charging. In a way, you cannot flexibly use different billing methods for different users.
- the present invention proposes a simple and effective way to implement the functions of flexibly configuring real-time charging and non-real-time charging modes for different applications in the IMS system. Summary of the invention
- the purpose of the present invention is to provide the S-CSCF with the charging mode control information corresponding to each AS involved in the user subscription service through the Cx interface, and the S-CSCF sends the corresponding information to each AS after determining the information.
- the billing method information solves the problem that the real-time or non-real-time billing method cannot be flexibly configured for different applications in the existing IMS system.
- a method for configuring charging information in an Internet Protocol Multimedia Subsystem including a Home Subscriber Server, a Service Call State Control Function Unit, and an Application Server comprising the steps of:
- the service call state control function unit determines a corresponding charging function address of each application server according to the received charging function address information and the charging mode information, and forwards the corresponding charging function address information to each application server.
- the step of storing the corresponding charging mode information of each application server involved in the user service in the home subscriber server is implemented by adding corresponding charging mode information for each application server in the data representing the user subscription information.
- a charging method letter is added to the "Application Server" class of the general modeling language model that represents the data of the user subscription information.
- the value of the information includes the value corresponding to the online charging mode and the value corresponding to the offline charging mode.
- the attribute added is an attribute "ChargingType” of type "enumerated”, and the value is: “ONLINE_CHARGING”, corresponding to the online charging mode; “OFFLINE_CHARGING”, corresponding to the offline charging mode Value.
- the charging mode information is carried by the attribute value pair "User-Data" in the interface protocol between the home subscriber server and the serving call state control function unit, so that the charging mode information is from the home subscriber The server sends to the service call state control function unit.
- the charging mode information is included in the user service information described by the attribute value pair "User-Data" in the extensible markup language format.
- the attribute value pair for specifying the charging mode for the corresponding application server is added in the interface protocol between the home subscriber server and the serving call state control function unit, so that the charging mode information is from the home subscriber server. Send to the service call state control function unit.
- the byte in the data field of the newly defined attribute value pair corresponds to the charging mode corresponding to the application server, where "00000000" represents online charging and "00000001" represents offline charging.
- the order of the application server corresponding to each byte and the attribute value of the user service information in the "User-Data" in the extensible markup language format The application servers appear in the same order.
- the service call state control function unit determines the corresponding charging function address of each application server according to the received charging mode information for each application server and the attribute value given to the charging function address in the “Charging-Information”. And send the corresponding billing address to each application server.
- the charging function address given by the received attribute value to "Charging-Information" includes at least one ECF and at least one In the CCF, if the accounting mode of the specified application server is online charging, the charging function address sent to the application server includes at least the attribute value pair.
- the charging function address sent to the application server is all the attribute value pairs given in "Charging-Information” address.
- an internet protocol multimedia subsystem in which billing information can be flexibly configured, the internet protocol multimedia subsystem including a home subscriber server, a service call state control function unit, and an application server, characteristics thereof Lie in:
- the home subscriber server is configured to store charging mode information for each application server involved in the user service and to send the charging function address information and the charging mode information to the service call state control function unit;
- the service call state control function unit is configured to determine a corresponding charging function address of each application server according to the received charging function address information and the charging mode information, and forward the corresponding charging function address information to each application server.
- the data representing the user subscription information stored by the home subscriber server includes corresponding charging mode information for each application server.
- the "Application Server" class of the general modeling language model that represents the data of the user subscription information includes an attribute about the charging mode information, and the value includes the value corresponding to the online charging mode and the corresponding offline The value of the billing method.
- the attribute about the charging mode information is an attribute "ChargingType” of the type "listed”, and the value is: “ONLINE_CHARGING", corresponding to the online charging mode; "OFFLINE_CHARGING” , which corresponds to the value of the offline charging method.
- the charging mode information is carried by the attribute value pair "User-Data" in the interface protocol between the home subscriber server and the serving call state control function unit, so that the charging mode information is from the home subscriber The server sends to the service call state control function unit.
- the charging mode information is included in the user service information described by the attribute value pair "User-Data" in the extensible markup language format.
- the interface protocol between the home subscriber server and the serving call state control function unit includes an attribute value pair for specifying a charging mode for the corresponding application server, for using the charging mode information from the home user.
- the server sends to the service call state control function unit.
- the byte in the data field of the attribute value pair corresponds to a charging mode corresponding to the application server, where "00000000" represents online charging and "00000001" represents offline charging.
- the order of the application server corresponding to each byte and the attribute value pair in the user service information data represented by the extensible markup language format in "User-Data" The application servers appear in the same order.
- the service call state control function unit is configured to determine a corresponding calculation of each application server according to the received charging mode information for each application server and the attribute value given in the "Charging-Information" The fee-based address is sent and the corresponding billing address is sent to each application server.
- the charging function address sent by the service call state control function unit to the application server includes at least all ECF addresses given by the attribute value pair "Charging-Information”; if the specified application server charging mode Offline For charging, the charging function address sent by the service call state control function unit to the application server is all CCF addresses given by the attribute value to "Charging-Information”; if the charging mode of the application server is not specified, the service call is The charging function address sent by the status control function unit to the application server is that the attribute value gives all addresses to "Charging-Information".
- the charging function address sent to the application server is all attribute values given in "Charging-Information” address.
- the charging method is flexibly configured for different applications in the IMS system.
- the use of an independently controllable billing method will facilitate the promotion and implementation of the service. For example, if a specific application (such as a PoC service) is provided by a third-party carrier independently, even if a user signs a contract at its IMS home network operator, it is a normal non-real-time charging method, such as a typical monthly basis.
- a single record is billed from the bank account authorized by the user to pay the monthly IMS communication fee, but if the user is allowed to purchase the prepaid card for the specific application from a third party operator providing a specific application such as a PoC service, The use of this service in a prepaid manner will facilitate the widespread implementation of IMS and related applications. Even if the IMS infrastructure operator is the same operator as a carrier that provides specific applications such as PoC services, the flexible configuration of the charging mode will be beneficial to the operator's promotion of specific high value-added applications.
- FIG. 1 is a schematic structural diagram of an IMS system
- FIG. 2 is a schematic structural diagram of an IMS charging system
- Figure 3 is a schematic structural view of an OCS system
- FIG. 4 is a schematic diagram of a message format of a CX interface SAA command in the prior art
- FIG. 5 is a schematic diagram of a message format of a CPR interface PPR command in the prior art
- 6 is a schematic diagram of a UML model of user service information
- FIG. 7 is a schematic diagram of a UML model of an iFC class in the prior art
- FIG. 8 is a schematic diagram of a UML model of an iFC class in the present invention.
- FIG. 9 is a schematic diagram of a newly defined AVP "Application-Server-Charging-Type" in the present invention.
- FIG. 10 is a schematic diagram of a message format of a CX interface SAA command in the present invention
- FIG. 11 is a schematic diagram of a message format of a CPR interface PPR command in the present invention
- FIG. 12 is a control of an AS charging mode in a registration process.
- Fig. 1 shows the structure of an IMS system in the present invention, which is generally indicated by reference numeral 10.
- the IMS system 10 includes a P-CSCF 11 (Proxy Call State Control Function Unit) as an IMS core, an I CSCF 12 (Interrogation Call State Control Function Unit) and an S-CSCF 13 (Serving Call State Control Function Unit), and an HSS 14 (attribute to User server), AS 15 (application server).
- P-CSCF 11 Proxy Call State Control Function Unit
- I CSCF 12 Interrogation Call State Control Function Unit
- S-CSCF 13 Server Call State Control Function Unit
- HSS 14 Attribute to User server
- AS 15 application server
- the P-CSCF 11 is the first access point for the user equipment to access the IMS through SIP (Session Initiation Protocol) signaling, and mainly performs functions such as SIP message compression/decompression and SIP message forwarding;
- S-CSCF 13 It is a session control and service activation function unit of the 16 home network, which is responsible for completing user authentication and authentication, maintaining user SIP registration information, session control and service triggering, providing charging information, etc.;
- I - CSCF 12 is mainly used for Blocking the topology of the carrier network, completing the allocation of the S-CSCF 13 and responsible for routing the SIP message between the P-CSCF 11 and the S-CSCF 13 to which the UE 16 is connected;
- the AS 15 is for implementing various application services.
- the functional unit mainly provides application business logic and service control, and is responsible for providing charging information of the corresponding service to the charging system;
- HSS 14 is a user configuration database server for storing user location information, various subscription information of the user, etc. Data and billing method information corresponding to each AS 15.
- S - CSCF 13/1 - There is a Cx interface between CSCF 12 and HSS 14, and an ISC interface between S-CSCF 13 and AS 15.
- FIG. 2 shows the structure of a billing system 20 of an IMS system 10 in accordance with the present invention.
- CDF 21 Bit Data Function Unit
- CGF 22 Bit Gateway Function Sheet
- OCS 24 online charging system is used for online real-time charging.
- the IMS application server is connected to the OCS 24 through the Ro interface
- the S-CSCF 13 is connected to the OCS 24 through the IMS-GWF 23 (IMS gateway functional unit)
- S - The CSCF 13 and the IMS-GWF 23 are ISC interfaces
- the IMS-GWF 23 and the OCS 24 are Ro interfaces.
- the Ro and Rf interfaces all use the Diameter protocol for communication.
- OCS 24 consists of OCF 31 (Online Billing Function Unit), ABMF 34 (Account Balance Management Function Unit), RF 35 (Batch Function Unit), and optional CGF 22 (Billing Gateway Functional Unit)
- the OCF 31 is composed of a session-based charging function unit (SBCF) and an event-based charging function unit (EBCF).
- SBCF session-based charging function unit
- EBCF event-based charging function unit
- OCS 24 can perform session-based and event-based online billing and credit control, and can control user availability of application services at the service level, for example, it can grant or deny users access to specific services on the network.
- CDRs are allowed to be generated at the same time for real-time charging for the purpose of billing statistics, settlement between operators, and the like.
- the first method is to perform online and offline charging simultaneously.
- the second method is to implement the CDF 21 function directly in the OCS 24 or to implement both the CDF 21 and CGF 22 functions, thereby allowing The CDR or CDR file generated by the OCS 24 is sent to the CGF 22 or billing system.
- the HSS 14 stores the charging mode information corresponding to each AS 15 by adding corresponding charging mode information for each application server to the data characterizing the user subscription information.
- Figure 8 illustrates the general modeling language model of the data characterizing user subscription information.
- an instance of the "Initial Filter Criteria” class consists of zero or one instance of the "Trigger Point” class and an instance of the "Application Server” class.
- the "Application Server” has two attributes, namely the ServerName attribute of the universal resource locator of the application Jil server and the DefaultHandling attribute indicating whether the SIP dialog is continued or released when the application server cannot be connected.
- a new type is added to the attribute of the "Application Server" class.
- the charging mode information is sent to the S-CSCF 13 via the attribute value pair "User-Data" in the Cx interface. Since the attribute value in the Cx interface is "User-Data" in XML format to represent user business information data, and the XML language adopts the characteristics of text encoding and its excellent scalability, the scheme does not need to modify or extend Cx.
- the Diameter command of the interface does not need to add an AVP entry, and has good backward compatibility.
- an instance of the "Service Profile” class also includes zero or more instances of the "Shared iFC Set” class.
- the class consists only of one type of integer ( integer ).
- An "Identifier” representation (not shown) for pointing to a collection of initial filtering criteria (iFC) that can be managed and stored locally in S-CSCF 13 that can be shared by multiple "Service Profiles". Since each iFC in the shared iFC set locally managed and stored in the S-CSCF 13 still has the same data structure as the above-mentioned "Initial Filter Criteria” class, the same manner can be employed in the S-CSCF according to the present invention. 13 local management and storage of shared iFC data structure added corresponding instructions for each application server The data item used for the billing method.
- the charging mode information is sent to the S-CSCF 13 by the attribute value pair "User-Data" in the Cx interface.
- the solution, the new attribute value pair is extended in the Cx interface, to specify the service description of each subscription of the user.
- the SAA and PPR commands include the AVP "User-Data" of the type “OctetString", that is, the user service information described in the XML format, and the type is "Grouped” AVP
- Charging-Information is used to give the billing function address associated with the subscriber's subscription service.
- an A VP "Application-Server-Charging-Type" of the type “OctetString” is extended to specify the corresponding charging method of each application server involved in the service description subscribed by the user. .
- FIG 9 shows the AVP encoding structure and specific usage.
- the definition of each field of the AVP header is detailed in the IETF specification RFC3588.
- the AVP encoding used to identify the AVP is from 632 to 699. Reserved for use by TS29.229, so the new definition AVP can use one of the AVP codes to identify the AVP.
- each byte is used for the corresponding charging mode indication of each application server: "00000000" means online charging, "00000001” means offline charging, "00000010” means not to the AS 15
- the billing method is limited, and "00000011 ⁇ 11111111” is reserved for future definitions.
- the order of the AS 15 corresponding to each charging mode indication field in the data field of the AVP is the same as the order of each AS 15 in the user service information data represented by the XML format in the AVP "User-Data", that is, the AVP
- the first accounting mode indication field of the data field indicates the charging method used by the application server represented by the first "Application Server” class in the XML text of "User-Data", and so on. Finally aligned with 32-bit bits.
- the order in which AS 15 appears in the above AVP "User-Data” should also take into account the AS 15 involved in the respective iFC sets indicated by the "Shared iFC Set" class instance.
- the message formats of the Cx interface SAA and PPR commands according to the present invention are as shown in FIG. 10 and FIG. 11, respectively, that is, an optional A VP "Application-Server" is added after the AVP “Charging-Information”. Charging-Type". Due to the inherent scalability of the Diameter protocol: this solution also has good backward compatibility.
- FIG. 12 shows a method for implementing control of the AS 15 charging mode in the UE 16 registration process based on the present invention. Only the operations related to the charging mode control of the present invention are shown in the figure. The details of other operations and related signaling procedures are consistent with the 3GPP specifications TS24.228, TS24.229 and TS23.228.
- the HSS 14 is responsible for storing the service subscription data of the user, where the data should include the charging mode information of each AS 15.
- step 1202 the UE 16 will send a SIP message "REGISTER" to the IMS core for registration before using the service provided by the IMS network; in step 1203, the S-CSCF 13 will receive the registration request from the UE 16 to the HSS 14 Sending the SAR command; in step 1204, the HSS 14 sends the service data of the port 16 to the S-CSCF through the SAA response command, and the response also includes the charging function address and the charging mode information of each AS 15; 1205, S-CSCF 13 sequentially checks each iFC included in the service data of the UE 16 according to the priority, and if the trigger condition of an iFC is satisfied, initiates a third-party registration to the corresponding AS 15 of the iFC (triggered according to TS29.228, The third-party registration condition is that the trigger condition given by the iFC "Service Point Trigger" includes at least the "REGISTER"-based SIP method), wherein the SIP message header P-Charging-Function-Addresses will indicate the AS 15
- the S-CSCF 13 after receiving the SIP dialog initial request or the independent transaction request and the lxx or 2xx response of these requests, the S-CSCF 13 will also forward the request to the corresponding AS 15 (also triggered according to the iFC) and The charging function address of the AS 15 is carried by the SIP message header P-Charging-Function-Addresses in the response message, and the charging function address is determined by the S-CSCF 13 according to the UE 16 charging function address obtained from the HSS 14 and the The accounting method of AS 15 is determined.
- the S-CSCF 13 will determine the corresponding AS 15 by using the charging function address given by the AVP "Charging-Information" and the charging mode information of each AS 15 obtained by using one of the two methods described above.
- Billing function address :
- the charging function address given by AVP "Charging-Information” includes at least one ECF and at least one CCF
- the corresponding charging function address is selected according to the specified AS 15 charging method. This is explained in detail below. If the accounting mode of the specified AS 15 is online charging, the charging function address sent to the AS 15 through the SIP header P-Charging-Function-Addresses of the ISC interface is included by AVP "Charging-Information”. All ECF addresses, or include at least one ECF and at least one CCF given by AVP "Charging-Information”.
- the CDR generated at the same time as real-time charging only needs to include all ECF addresses given by the AVP "Charging-Information”; whereas the OCS 24 does not include the typical CGF 22
- the CDR generated at the same time as the real-time charging needs to include the at least one ECF and the at least one CCF given by the AVP "Charging-Information”; if the designated charging mode of the AS 15 is offline charging,
- the accounting function address sent to the AS 15 through the SIP header P-Charging-Fimction-Addresses of the ISC interface is all C CF addresses given by AVP "Charging-Information”; if the accounting mode of the AS 15 is not specified
- the charging function address sent to the AS 15 through the SIP message header P-Charging-Function-Addresses of the ISC interface is "Charging-Information" giving all addresses.
- the existing Sh interface can support the manner in which the HSS 14 provides different charging function addresses to different ASs 15 via the Sh interface.
- the HSS 14 should have the function of controlling the AS 15 charging mode through the Sh interface, that is, when the AS 15 queries the HSS 14 for the service subscription data of the user through the Sh interface, the HSS 14 can store the user according to the user.
- the charging mode information of the AS 15 included in the service data and the charging function address involved in the user service, the charging function address for the AS 15 is determined based on the same principle as the above method, and the AS is sent to the AS through the Sh interface. 15 provides user service data including the billing function address that it uses.
- the HSS 14 and the S-CSCF 13 adopt a consistent AS 15 charging function address determining method, the charging function address received by the AS 15 from the Cx and ISC interfaces and the charging function address received from the Sh interface are guaranteed. Consistency.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US11/912,907 US20080195535A1 (en) | 2005-04-29 | 2005-04-29 | Method for Flexibly Configuring Charging Modes in Ims Systems |
CNA2005800496449A CN101167097A (zh) | 2005-04-29 | 2005-04-29 | Ims系统中实现计费方式灵活配置的方法 |
PCT/CN2005/000600 WO2006116894A1 (fr) | 2005-04-29 | 2005-04-29 | Méthode de réglage souple de mode de facturation dans un système ims |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/CN2005/000600 WO2006116894A1 (fr) | 2005-04-29 | 2005-04-29 | Méthode de réglage souple de mode de facturation dans un système ims |
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WO2006116894A1 true WO2006116894A1 (fr) | 2006-11-09 |
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PCT/CN2005/000600 WO2006116894A1 (fr) | 2005-04-29 | 2005-04-29 | Méthode de réglage souple de mode de facturation dans un système ims |
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US (1) | US20080195535A1 (zh) |
CN (1) | CN101167097A (zh) |
WO (1) | WO2006116894A1 (zh) |
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US20080195535A1 (en) | 2008-08-14 |
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