WO2011137770A1 - 基于多媒体子系统的计费话单生成方法、系统及设备 - Google Patents

基于多媒体子系统的计费话单生成方法、系统及设备 Download PDF

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Publication number
WO2011137770A1
WO2011137770A1 PCT/CN2011/074101 CN2011074101W WO2011137770A1 WO 2011137770 A1 WO2011137770 A1 WO 2011137770A1 CN 2011074101 W CN2011074101 W CN 2011074101W WO 2011137770 A1 WO2011137770 A1 WO 2011137770A1
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WIPO (PCT)
Prior art keywords
user terminal
charging
access information
request message
called
Prior art date
Application number
PCT/CN2011/074101
Other languages
English (en)
French (fr)
Inventor
陈武坤
Original Assignee
华为技术有限公司
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Publication of WO2011137770A1 publication Critical patent/WO2011137770A1/zh

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Classifications

    • 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
    • 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
    • H04L12/1428—Invoice generation, e.g. customization, lay-out, database processing, algorithms for calculating the bill or formatting invoices as WWW pages
    • 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]
    • 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
    • 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
    • H04M15/41—Billing record details, i.e. parameters, identifiers, structure of call data record [CDR]
    • 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
    • H04M15/43—Billing software details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20—Technology dependant metering
    • H04M2215/204—UMTS; GPRS
    • 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 the field of communications technologies, and in particular, to a method, system and device for generating a bill according to a multimedia subsystem.
  • the IP Multimedia Subsystem is a telecom next-generation core network proposed by the Third Generation Partnership Project (3GPP) to support IP multimedia services.
  • the IMS system uses the Session Initiation Protocol (SIP) call control mechanism to create, manage, and terminate various types of multimedia services.
  • SIP Session Initiation Protocol
  • Various types of clients may establish end-to-end IP communications through the IMS system.
  • the quality of service required can be obtained.
  • the IMS system also has the necessary functions to provide multimedia services such as registration, security, billing, bearer control, roaming, and so on.
  • the mobile access gateway control function accesses the IMS network system, and the application server in the IMS network system (Application) Server, AS) provides IMS services.
  • the mAGCF in the calling network of the user terminal When the existing user terminal makes a call through the IMS system, the mAGCF in the calling network of the user terminal generates a charging bill for the user terminal call, and the AS and the charging collection function entity in the IMS system (Charging Collection Function , CCF) cooperates with the billing CDR of the IMS service of the user terminal, which requires the operator to associate the billing bills of the mAGCF and the AS network element through an additional system device such as a mediation device (MEDIATION) or a BOSS system.
  • the merge that is, the association to the same user call, and finally the CCF stores the merged CDR. In this way, the collection of billing information in the call of the user terminal through the IMS system is complicated.
  • Embodiments of the present invention provide a method, system, and device for generating a charging bill based on a multimedia subsystem, The process of generating billing bills when the user terminal makes a call through the IMS system is simplified.
  • the embodiment of the present invention provides a method for generating a charging bill based on a multimedia subsystem according to an embodiment of the present invention, including: receiving a call request message, and storing access information of a calling user terminal carried in the call request message, And sending the call request message to the called network;
  • the charging collection function entity Adding the access information of the calling user terminal and the access information of the called user terminal to the charging request message, and sending the charging information to the charging collection function entity in the network protocol multimedia subsystem of the calling network, so as to The charging collection function entity generates a charging bill according to the access information of the calling user and the called user terminal.
  • An embodiment of the present invention further provides an application server, including:
  • a first acquiring unit configured to receive a call request message, store access information of the calling user terminal carried in the call request message, and send the call request message to the called network;
  • a second acquiring unit configured to receive a call response message returned by the called network, and store access information of the called user terminal carried in the call response message;
  • a first CDR generating unit configured to add access information of the calling user terminal stored by the first acquiring unit and access information of the called user terminal stored by the second acquiring unit to the charging request message And sending, to the charging collection function entity, the charging collection function entity to generate a charging bill according to the access information of the calling user terminal and the called user terminal.
  • the embodiment of the invention further provides a network device, including:
  • a call receiving unit configured to receive a call request message sent by the user terminal
  • An access information obtaining unit configured to obtain, according to the identification information of the calling user terminal in the call request message, access information of the calling user terminal;
  • a call sending generating unit configured to add the calling user terminal to the call request message, and send the call request message to the application server, so that the application server initiates a charging request to the charging collection function entity, requesting the charging collection function
  • the entity generates a charging bill according to the access information of the calling user terminal and the called user terminal.
  • the system for generating a charging bill based on the multimedia subsystem provided by the embodiment of the present invention includes: an application server, a mobile access gateway control function entity, and a charging collection function entity;
  • the mobile access gateway control function entity is configured to receive a call request message sent by the user terminal, and obtain corresponding access information according to the identification information of the calling user terminal in the call request message; The access information is added to the call request message and sent to the application server;
  • the application server is configured to receive a call request message sent by the mobile access gateway control function entity, store access information of the calling user terminal carried in the call request message, and send the call request message to Receiving a call response message returned by the called network, storing access information of the called user terminal carried in the call response message; accessing the access information of the calling user terminal and the called user terminal
  • the access information is added to the charging request message and sent to the charging collection function entity in the network protocol multimedia subsystem of the calling network.
  • the charging collection function entity is configured to generate a charging bill according to the access information of the calling user terminal and the called user terminal.
  • the charging bill generation method of the embodiment of the present invention includes: storing the access information of the calling user terminal carried in the received call request message, and storing the access information of the called user terminal carried in the received call response message;
  • the access information of the called user terminal and the called user terminal is added to the charging request message and sent to the CCF, so that the CCF can generate a charging bill according to the access information of the calling user terminal and the called user terminal.
  • the AS on the calling network side sends the user terminal access information necessary for generating the call charging bill to the CCF through the charging request message, and the CCF uniformly generates the call charging bill and the IMS service meter.
  • the bills are billed, so that the operator can perform the association of the billing bills when the user terminal makes a call through the IMS system without using the additional equipment to perform the association and billing of the bills.
  • FIG. 1 is a schematic structural diagram of a call when an IMS system is used
  • FIG. 2 is a flowchart of a multimedia subsystem-based charging bill generation method according to Embodiment 1 of the present invention
  • 3 is a flowchart of a multimedia subsystem-based charging bill generation method according to Embodiment 2 of the present invention
  • FIG. 4 is a flowchart of a multimedia subsystem-based charging bill generation method according to Embodiment 3 of the present invention.
  • FIG. 5 is a flowchart of a multimedia subsystem-based charging bill generation method according to Embodiment 4 of the present invention.
  • FIG. 6 is a flowchart of an application example of a multimedia subsystem-based charging bill generation method provided by an embodiment of the method of the present invention.
  • FIG. 7 is a schematic structural diagram of an application server according to Embodiment 1 of the device of the present invention.
  • FIG. 8 is a schematic structural diagram of a mobile access gateway control function entity provided by Embodiment 2 of the device of the present invention.
  • a charging bill generation method based on a multimedia subsystem (hereinafter referred to as an IMS system), the embodiment is adapted to the method executed by the application server in the charging bill generation system shown in FIG. As shown, including:
  • Step 101 Receive a call request message, store access information of the calling user terminal carried in the call request message, and send the call request message to the called network.
  • mAGCF gateway control function entity
  • HLR home location register
  • the access information of the user terminal is added to the extended header field and/or the value domain, and is mapped to an IMS service control (ISC) interface, and sent to an application server (hereinafter referred to as AS), and the call request message is called.
  • ISC IMS service control
  • AS application server
  • the Session Control Function (CSCF) is sent to a specific AS;
  • the AS After receiving the call request message from the ISC interface, the AS parses the header field and/or the value field of the call request message to obtain the access information of the calling user terminal for storage; and sends the call request message to the called network through the CSCF.
  • the called network may also be a call structure based on the IMS system as shown in the structure of the calling client in FIG. 1, or may not be a call structure based on the IMS system.
  • the access information of the calling user terminal herein refers to the information that the calling user terminal currently accesses the network, such as the access information in the circuit switched domain (CS), including the information necessary for generating the charging bill of the call. .
  • CS circuit switched domain
  • Step 102 Receive a call response message returned by the called network, and store the access information of the called user terminal carried in the call response message.
  • the call request message arrives at the mAGCF in the called network, and the mAGCF obtains the access information of the called user terminal, such as the user location area, from the HLR corresponding to the called user terminal.
  • the call response message arrives at the AS through the CSCF; the AS receives the call response message, parses the extended header field and/or the value field to obtain the access information of the called user terminal for storage.
  • the call request message arrives at the Mobile Switching Center (MSC) in the called network; after the MSC acquires the access information of the called user terminal, the extended call response is extended.
  • MSC Mobile Switching Center
  • the header field and/or the value field of the message, and the access information of the called user terminal is carried in the extended header field and/or the value field, and returned to the calling network; the call response message arrives at the AS through the CSCF, and the AS receives To the call response message, the access information of the called user terminal is parsed and stored.
  • the access information of the called user terminal herein refers to the information that the called user terminal currently accesses the network, and includes information necessary for generating the charging bill of the call.
  • Step 103 Add access information of the calling user terminal and access information of the called user terminal to The accounting request message (ACR) is sent to the charging collection function entity in the IMS system of the network protocol multimedia subsystem in the calling network, so that the charging collection function entity (hereinafter referred to as CCF) is based on the calling user terminal. And the access information of the called user terminal generates a charging bill.
  • ACR accounting request message
  • the AS may add a calling user terminal in the header and/or domain or the value field of the extended charging request message by extending the header field and/or the value field of the Accounting Request Pairs (AVP) format charging request message. And access information of the called user terminal. And the IMS service related information corresponding to the calling user terminal is included in the charging request message, so that the CCF receives the charging request message, and then generates an IMS service charging bill.
  • AVP Accounting Request Pairs
  • the CCF when receiving the charging request message and generating the charging bill according to the access information, the CCF generates a charging bill for the called party to be called and a charging bill for the IMS service, where the calling call is
  • the method for generating the billing bill is the same as the method for generating the bill by the existing mAGCF. In the generating process, it is generated according to the access information of the calling user terminal and the called user terminal; The CDR is generated according to the IMS service information corresponding to the calling user terminal.
  • the specific generation method is an existing process, and details are not described herein.
  • the calling terminal A calls the called terminal B in the user location area a.
  • the called terminal B is in the user location area bl
  • the CCF calls the user location area bl according to the terminal of the user location area a1 in the charging policy.
  • the charging mode of the terminal generates a charging bill for the call, and generates an accounting CDR of the IMS according to the charging mode of the IMS service type used by the user terminal A in the charging policy.
  • the charging bill generation method in the embodiment of the present invention includes: storing the access information of the calling user terminal carried in the received call request message, and storing the access information of the called user terminal carried in the received call response message. And adding the access information of the called user terminal and the called user terminal to the charging request message, and sending the CCF to the CCF in the IMS system in the calling network, so that the CCF can be based on the calling user terminal and the called user terminal.
  • the access information generates a billing bill.
  • the system does not need to pass the mAGCF, and the AS and the CCF separately generate the respective CDRs, and the user terminal access information necessary for generating the calling CDR is sent to the CCF through the charging request message, and is uniformly generated by the CCF.
  • Calls and IMS service CDRs so that the operator can perform the association and merging of billing CDRs without additional equipment, which simplifies the process of generating bill CDRs when the user terminal makes a call through the IMS system.
  • the call request message mentioned in the above step is a SIP message, and the call response message may also be a SIP message, so
  • the mAGCF can obtain the access information of the calling user terminal, and can extend the P-Charging-Vector of the SIP call request message and/or access the P-Visited-Network-ID.
  • the P-Charging-Vector header field or the P-Visited-Network-ID header field is used to carry the access information of the calling user terminal.
  • Adding the access information of the calling user terminal to the extended SIP message header field where the access information shown in Table 1 below may be added in the P-Charging-Vector header field, where the user's mobile station level,
  • the network call reference number, the detailed cause value, and the release type are access information that must be added, and other information can be added according to one or more of the operators without the operator:
  • Guaranteed Bit Rate Guaranteed Bit Rate Integer (1 ⁇ 118) Maximum Bit Rate Maximum Bit Rate Integer (1 ⁇ 118) Mobile Station Level Identifier 3 classmark3 String ( 2 ) User's Logical Charging Area Code Charge Area Code String ( 1..3)
  • Global call reference number Global Call string (1..24) Reference
  • Modem type used Modem Type Integer (0 ⁇ 33)
  • the mAGCF of the called network obtains the access information of the called user terminal, and can extend the P-Charging-Vector header i or/or P of the SIP call response message.
  • -Visited-Network-ID header i or add the access information of the called user terminal to the extended SIP message header field, and add the necessary information in Table 1 in the P-Charging-Vector header field, that is, the user Mobile station level, network call reference number, detailed cause value and release type, also need to add the access information shown in Table 3 below; and in the P-Visited-Network-ID header field
  • Table 1 in the P-Charging-Vector header field
  • the method in this embodiment may further include step 104 and
  • Step 104 Receive a mobile access gateway control function entity of the calling network, or a user handover notification message sent by the called network, where the handover notification message includes the access information of the calling user terminal or the accessed cell of the called user terminal. ;
  • the calling and called user terminals may move between cells, and when the mobile terminal of any one of the two parties of the call causes cell handover, the access information of the user terminal changes.
  • the mAGCF of the cell where the current user terminal is located needs to send a user handover notification message to the AS in the IMS system, where the access information of the access cell where the user terminal is currently located is carried.
  • Step 105 Add the access information of the calling user terminal or the accessed cell of the called user terminal to the charging request message, and send the information to the charging collection function entity, so that the charging collection function entity can be based on the calling user terminal or The access information of the access cell currently located by the called user terminal generates a switching charging bill.
  • the AS After receiving the user handover notification message, the AS parses the access information of the access cell in which the user terminal is currently located, and sends the access information of the access cell currently located in the user terminal to the CCF through the charging request message, and the CCF will The method for re-generating the switch-based bill is re-created.
  • the specific implementation is as described in the foregoing step 103, and details are not described herein again.
  • a method for generating a charging bill based on a multimedia subsystem is applicable to the system shown in FIG. 1 and is a mobile access gateway control function entity on the network side of the calling user terminal.
  • the method of the line, the method flow chart shown in Figure 3 includes:
  • Step 201 Receive a call request message sent by a calling user terminal.
  • Step 202 Acquire corresponding access information according to the identification information of the calling user terminal in the call request message.
  • the mAGCF After receiving the call request message, the mAGCF obtains corresponding access information from the HLR according to the identification information of the calling user terminal, where the access information is stored in the register when the calling user terminal accesses the mobile network, and the process is For the existing process, it will not be described here.
  • the access information of the calling user terminal refers to the access information of the access network where the calling user terminal is currently located, and is the information necessary for generating the call charging CDR.
  • the specific access information must be included in Table 1 above.
  • the necessary information is the user's mobile station level, network call reference number, detailed cause value and release type, and/or the information shown in Table 2.
  • Step 203 Add the access information of the calling user terminal to the call request message, and send the information to the application server, so that the application server initiates a charging request to the charging collection function entity in the IMS system of the calling network, and requests charging collection.
  • the function entity generates a charging bill according to the access information of the calling user terminal, the access information of the called user terminal, and the corresponding charging policy.
  • the call request message is a SIP protocol message
  • the mAGCF can extend the P-Charging-Vector header field and/or the P-Visited-Network-ID header field of the SIP call request message, and the calling party
  • the access information of the user terminal is added to the header field of the extended SIP call request message, and is sent to the application server.
  • the method for executing the application server is as described in the first embodiment of the method, and details are not described herein again.
  • the charging request message further includes information related to the IMS service corresponding to the calling user terminal, that is, information necessary for generating the charging CDR of the IMS service, so that after receiving the charging request message, the CCF can generate the IMS service charging. Bills.
  • the CDR generation method of the embodiment of the present invention includes: the mAGCF of the calling user terminal network reports the access information of the calling user terminal to the application server by using a call request message, and does not generate a call charging CDR, such that the application server
  • the charging request is sent to the CCF, and the CCF is requested to generate the bill, and the CCF uniformly collects the information of the call billing bill and the IMS service bill.
  • the merging of bills can be performed without additional equipment, which simplifies the process of generating bills when the user terminal makes a call through the IMS system.
  • the method in this embodiment may further include:
  • Step 204 After the calling user terminal contacts the cell handover, sending a user handover notification message to the application server, where the handover notification message includes the access information of the access cell where the calling user terminal is currently located;
  • the collection function entity initiates a charging request, and the requesting charging collection function entity generates a switching charging bill according to the access information of the access cell where the calling user terminal is currently located.
  • the mAGCF can extend the P-Charging-Vector header field and/or the P-Visited-Network-ID header field of the handover notification message, and add the access information of the currently visited cell of the calling user terminal to the extended header field. In, sent to the application server.
  • a method for generating a billing bill based on a multimedia subsystem is applicable to the system shown in FIG. 1.
  • the method in this embodiment is a mobile access gateway control function entity on the network side of the called user terminal.
  • the executed method, method flow chart shown in Figure 4 includes:
  • Step 301 Receive a call response message sent by the called user terminal.
  • the called network in this embodiment is a call structure based on the IMS system, and when the called user terminal receives the call based on the IMS system, the call response message is returned, and the call response message is returned to the calling user terminal through the mAGCF. Network side.
  • Step 302 Acquire corresponding access information according to the identification information of the called user terminal in the call response message.
  • the mAGCF After receiving the call response message, the mAGCF obtains corresponding access information from the HLR according to the identification information of the called user terminal, where the access information is stored in a register when the called user terminal accesses the mobile network, and the process is For the existing process, it will not be described here.
  • the access information of the called user terminal is the access information of the access network of the called user terminal, and is the information necessary for generating the call charging bill.
  • the specific access information must include the following Table 1. Necessary letter The information is the user's mobile station level, network call reference number, detailed cause value and release type, and the information shown in Table 3.
  • Step 303 Add the access information of the called user terminal to the call response message, and send the information to the application server, so that the application server initiates an accounting request to the charging collection function entity, and requests the charging collection function entity to be based on the called user terminal.
  • the access information and the access information of the calling user terminal generate a charging bill.
  • the call response message is a SIP protocol message
  • the mAGCF can extend the P-Charging-Vector header i or/or the P-Visited-Network-ID header field of the SIP call response message, and will be called
  • the access information of the user terminal is added to the header field of the extended SIP call response message, and is sent to the application server.
  • the method for executing the application server is as described in the first embodiment of the method, and details are not described herein again.
  • the method for generating a bill of the embodiment of the present invention includes: the mAGCF on the network side of the called user terminal reports the access information of the called user terminal to the application server by using a call response message, and does not generate a call billing bill, so that the application server
  • the billing request is sent to the CCF, and the CCF is requested to generate the bills.
  • the CCF collects the information of the billing bills and the IMS service bills, and generates the bills, so that the bills can be merged without additional equipment.
  • the association simplifies the process of generating bill CDRs when the user terminal makes a call through the IMS system.
  • the method in this embodiment may further include:
  • Step 304 After the called user terminal has an access cell handover, send a user handover notification message to the application server, where the handover notification message includes the access information of the access cell where the called user terminal is currently located;
  • the collection function entity initiates a charging request, and the requesting charging collection function entity generates a switching charging bill according to the access information of the access cell where the called user terminal is currently located, and the corresponding charging policy.
  • the mAGCF can extend the P-Charging-Vector header field and/or the P-Visited-Network-ID header field of the handover notification message, and add the access information of the currently accessed cell of the called user terminal to the extended header field. In, sent to the application server.
  • a method for generating a billing bill based on a multimedia subsystem is applicable to the system shown in FIG. 1.
  • This embodiment is a method performed by a CCF in an IMS system of a calling network, and the flowchart is as follows: As shown in Figure 5, it includes:
  • Step 401 Receive an accounting request message sent by an application server of the IMS multimedia subsystem IMS, where the charging request message carries the access information of the calling user terminal and the called user terminal.
  • the access information of the calling and called user terminals carried in the charging request message is obtained by the mAGCF (or MSC) in the network side where the calling and called user terminals are currently located, and is respectively obtained by the HLR, and respectively passes the call request message. And the call response message is sent to the AS.
  • mAGCF or MSC
  • the access information here refers to the information that the user terminal accesses the call network, that is, the information necessary for generating the call bill.
  • the access information of the calling user terminal is as shown in Table 1 and Table 2 above, and the access information of the called user terminal is as shown in Tables 1 to 3 above.
  • the charging request message further includes information related to the IMS service corresponding to the calling user terminal, that is, information necessary for generating the charging CDR of the IMS service, so that the CCF can generate the IMS service after receiving the charging request message. Billing bills.
  • Step 402 Parse the charging request message to obtain access information of the calling user and the called user.
  • Step 403 Generate a charging bill according to the access information of the calling user and the called user.
  • the CCF when receiving the charging request message and generating the charging bill according to the access information, the CCF generates a charging bill for the called party to be called, and the billing bill is generated by the calling party and the called party.
  • the method is the same as that of the existing mAGCF to generate the CDR.
  • the CCF also generates the IMS service charging CDR corresponding to the calling user terminal, and the charging CDR of the IMS service is an existing process, and details are not described herein. .
  • the calling terminal A calls the called terminal B in the user location area a.
  • the called terminal B is in the user location area bl
  • the CCF calls the user location area bl according to the terminal of the user location area a1 in the charging policy.
  • the charging method of the terminal generates a charging bill for the call, and generates an accounting CDR of the IMS according to the charging method of the IMS service type used by the user terminal in the charging policy.
  • the charging bill generation method in the embodiment of the present invention includes: the CCF receives the AS sending charging request message, generates the access information according to the calling user terminal and the called user terminal, and generates a corresponding charging policy. Billing bills. In this way, the CCF will generate the information necessary for the call billing bill. After the collection, the billing CDRs of the call during the call are generated, and the IMS service billing CDRs are generated, so that no additional equipment is used for bill merging and merging, which simplifies the process of generating CDRs in the call based on the IMS system. .
  • the method in this embodiment may further include:
  • Step 404 Receive an accounting request message, where the access information of the access cell where the calling user terminal or the called user terminal is currently located is carried. According to the access information of the access cell where the calling user terminal or the called user terminal is currently located, And the corresponding charging policy generates a switching charging bill.
  • the mAGCF reports the changed information to the AS in time, and the AS initiates the update of the charging bill to the CCF, and the CCF is currently connected according to the user terminal.
  • the access information of the incoming cell is generated, and the switching billing bill is generated, which improves the real-time performance of the billing.
  • the method provided by the embodiment of the present invention is described by using a specific application example.
  • the calling network and the called network are both based on the call structure of the IMS system.
  • the method flowchart is shown in FIG. 6, and includes:
  • Step 501 The calling user terminal sends a call request message.
  • Step 502 After receiving the call request message of the user terminal, the mAGCF on the network side of the calling user terminal requests, according to the user terminal identifier of the calling user terminal, the HLR to obtain the access information of the calling user terminal, such as the user location area. , mobile station level, network call reference number, etc.
  • the HLR maps the access information to the Integrated Services Digital Network User Part (ISUP), the Mobile Application Part (MAP), and the Transaction Capability Application Part (TCAP) protocol.
  • the command is sent to the mAGCF; the mAGCF extends the P-Charging-Vector header field of the call request message of the SIP protocol and the P-Visited-Network-ID header field, and adds the obtained access information of the calling user terminal to the two headers.
  • Table 4 below is the content of the extended P-Charging-Vector header field:
  • an INVITE message is formed, and the mAGCF sends the INVITE message to the AS through the CSCF.
  • Step 503 After receiving the INVITE message, the AS parses the P-Charging-Vector header field and the P-Visited-Network-ID header field in the INVITE message to obtain the access information of the calling user terminal and save the information.
  • Step 504 The AS sends the INVITE message to the network side where the called user terminal is located through the CSCF.
  • Step 505 The network side where the called user terminal is located returns a call response message, such as an 18X message or a 200 message to the AS through the CSCF, and carries the called party in the P-Charging-Vector header field of the call response message and the P-Visited-Network-ID header field.
  • a call response message such as an 18X message or a 200 message to the AS through the CSCF
  • the P-Charging-Vector header i or the P-Visited-Network-ID header field of the call response message carries the access information of the called user terminal, and the reference call request message carries the connection of the calling user terminal. The method of entering information is not described here.
  • Step 506 After receiving the call response message, the AS parses the P-Charging-Vector header field and the P-Visited-Network-ID header field in the call response message to obtain the access information of the called user terminal and save the information.
  • Step 507 The AS expands the header field or the value field of the ARP format charging request message in the extended header field.
  • the access information of the calling user terminal saved in step 503 and the access information of the called user terminal saved in step 506 are added; and the charging request message after the information is added is sent to the CCF through the Rf interface.
  • the IMS service related information corresponding to the calling user terminal is also included in the charging request message, so that after receiving the charging request message, the CCF can generate an IMS service charging bill.
  • the CCF After receiving the charging request message, the CCF generates a call charging bill and an IMS service charging bill according to the access information of the called party and the calling user terminal, and the corresponding charging policy, and the specific generating process is as shown in Embodiment 1 As described, it will not be repeated here.
  • Step 508 The cell handover occurs in the calling user terminal during the call, and the mAGCF of the currently visited access cell extends the P-Charging-Vector header field and the P-Visited-Network-ID header field of the handover notification message (INFO).
  • the access information of the currently accessed cell of the calling user terminal is added in the extended header field, and the handover notification message after adding the access information is sent to the AS.
  • Step 509 After receiving the handover notification message, the AS sends an accounting request message to the CCF to switch the charging bill generation.
  • the access information of the calling user terminal and the access information of the called user terminal are added to the charging request message by the AS, and sent to the CCF, so that the CCF can be based on the calling user terminal and the called user.
  • the access information of the terminal and the corresponding preset policy generate a charging bill. Since the call accounting bill and the IMS service charging bill are not separately generated in the mAGCF and the CCF in the system, the AS terminal generates the user terminal access information necessary for the call charging bill, and generates the IMS service meter.
  • the IMS service information necessary for the bill is carried in the charging request message and sent to the CCF.
  • the CCF uniformly generates the calling and IMS service charging bills, so that the operator can perform the bills generated by the mAGCF and the CCF without using additional equipment. Association merging simplifies the process of generating bill CDRs when a user terminal makes a call through the IMS system.
  • Equipment Embodiment 1
  • An application server includes:
  • the first obtaining unit 10 is configured to receive a call request message, store access information of the calling user terminal carried in the call request message, and send the call request message to the called network.
  • the access information of the calling user terminal herein refers to the information that the calling user terminal currently accesses the network, such as the access information in the circuit switched domain (CS), including the charging bill for generating the call. Required information.
  • the specific information is shown in Tables 1 and 2 above.
  • a call request message is sent, and the call request message reaches the mAGCF through the calling user access; after the mAGCF obtains the access information of the calling user terminal, the call can be extended. Requesting the P-Charging-Vector header field and/or the P-Visited-Network-ID header field of the message, and adding the access information of the calling user terminal to the extended header field, and sending the message to the AS, the call request message will be Arrived at the AS through the CSCF.
  • the calling information obtaining unit 10 may parse the header field of the message to obtain the access information of the calling user terminal, and then send the call request message to the called network.
  • the second obtaining unit 11 is configured to receive a call response message returned by the called network, and store the access information of the called user terminal carried in the call response message;
  • the access information of the called user terminal herein refers to the information that the called user terminal currently accesses the network, and includes information necessary for generating the charging bill of the call.
  • the specific information is shown in Tables 1 to 3 above.
  • the call request message arrives at the mAGCF or MSC of the called network, and the access information of the called user terminal is obtained by the mAGCF or the MSC, and the P-Charging-Vector header field and/or the P-Visited-Network-ID of the call response message may be extended.
  • the header field adds the access information of the called user terminal to the extended header field and sends it to the AS.
  • the header field of the message may be parsed to obtain the access information of the called user terminal.
  • the first CDR generating unit 12 is configured to add the access information of the calling user terminal stored by the first acquiring unit 10 and the access information of the called user terminal stored by the second acquiring unit 11 to the charging request message, The charging collection function entity in the IMS system of the calling network, so that the charging collection function entity generates the charging bill according to the access information of the calling user terminal and the called user terminal.
  • the first CDR generation unit 12 may add the calling user terminal and the called party in the header field and/or the value field of the extended charging request message by extending the header field and/or the value field of the charging request message of the AVP format.
  • the access information of the user terminal so that after receiving the charging request message, the CCF generates the call charging corresponding to the call according to the access information of the calling user and the called user terminal, and the charging policy related to the call. single.
  • the charging request message further includes information related to the IMS service corresponding to the calling user terminal, that is, information necessary for generating the charging CDR of the IMS service, so that the CCF receives the charging request message, and then the CCF can generate the information.
  • information related to the IMS service corresponding to the calling user terminal that is, information necessary for generating the charging CDR of the IMS service, so that the CCF receives the charging request message, and then the CCF can generate the information.
  • the first obtaining unit 10 stores the access information of the calling user terminal carried in the received call request message
  • the second acquiring unit 11 stores the called user carried in the received call response message.
  • Access information of the terminal; and the first bill generation unit 12 adds the access information of the called user terminal and the called user terminal to the charging request message, and sends the information to the CCF in the IMS system in the calling network, so that The CCF can generate a charging bill according to the access information of the calling user terminal and the called user terminal.
  • the application server sends the user terminal access information necessary for generating the call CDR to the CCF through the charging request message, and the CCF uniformly generates the call and the IMS service CDR, so that the operator does not need to pass the additional
  • the device performs the association and association of the charging bills, which simplifies the process of generating billing bills when the user terminal makes a call through the IMS system.
  • the third obtaining unit 13 is configured to receive a mobile access gateway control function entity of the calling network, or a user switching notification message sent by the called network, where the storage switching notification message includes the calling user terminal or the called user terminal currently connected. Access information into the cell;
  • the switch CDR generating unit 14 is configured to add, to the charging request message, the access information of the calling user terminal or the currently located cell of the called user terminal in the handover notification message stored by the third acquiring unit 13 The fee collection function entity, so that the charging collection function entity generates a switching charging bill according to the access information of the calling cell of the calling user terminal or the called user terminal.
  • the mAGCF of the cell where the current user terminal is located sends a user handover notification message to the AS in the IMS system, and when the third acquiring unit 13 receives the user handover notification message.
  • the switching CDR generating unit 14 adds the access information of the access cell currently located in the user terminal included in the user switching notification message to the charging request message, and sends the information to the CCF to generate a charging CDR.
  • the mAGCF reports the changed information to the AS in time, and the AS in this embodiment initiates the update of the charging bill to the CCF, and improves the charging. real-time.
  • Equipment Embodiment 2 Equipment Embodiment 2
  • a network device the device in this embodiment may be a mAGCF of a calling network, and a schematic structural diagram is shown in FIG. 8 , including:
  • the call receiving unit 20 is configured to receive a call request message sent by the user terminal;
  • the access information obtaining unit 21 is configured to obtain access information of the calling user terminal according to the identification information of the calling user terminal in the call request message received by the call receiving unit 20;
  • the call sending generating unit 22 is configured to add the access information of the calling user terminal obtained by the access information obtaining unit 21 to the call request message, and send the information to the application server, so that the application server initiates the charging request to the charging collecting function entity.
  • the requesting charging collection function entity generates a charging bill according to the access information of the calling user terminal.
  • a call request message is sent, the call request message arrives at the mAGCF, and the call receiving unit 20 receives the call request message by the call receiving unit 20, and the access information obtaining unit 21 according to the call request.
  • the identification information of the calling user terminal in the message obtains the access information of the calling user terminal, and the call sending generating unit 22 adds the access information of the calling user terminal to the call request message, and sends the information to the AS, and then sends the information to the AS.
  • the call sending generating unit 22 adds the access information of the calling user terminal to the call request message, and sends the information to the AS, and then sends the information to the AS.
  • the application server sends an accounting request to the CCF, and requests the CCF to generate the bill.
  • the CCF collects the information of the call billing bill and the IMS service billing bill, and generates the billing bill, so that no additional equipment can be used.
  • the merge association of the CDRs simplifies the process of generating bill CDRs when the user terminal makes a call through the IMS system.
  • the network device may further include:
  • the handover sending generating unit 23 is configured to send a user handover notification message to the application server after the calling user terminal generates the access cell handover, where the handover notification message includes the access information of the currently visited cell of the calling user terminal;
  • the application server initiates a charging request to the charging collection function entity, and requests the charging collection function entity to generate a switching charging bill according to the access information of the access cell currently located by the calling user terminal and the corresponding charging policy.
  • the handover sending generating unit 23 reports the changed information to the AS of the calling network in time, and the AS initiates the update of the charging bill to the CCF. Improved real-time billing.
  • An embodiment of the present invention further provides a charging subsystem generation system based on a multimedia subsystem, including: an application server, a mobile access gateway control function entity, and a charging collection function entity, where each device in the system passes a method such as In the method described in the embodiment, the charging bill is generated, where: the mobile access gateway control function entity is configured to receive a call request message sent by the user terminal, Acquiring the corresponding access information according to the identification information of the calling user terminal in the call request message; adding the access information of the calling user terminal to the call request message, and sending the information to the application server;
  • the application server is configured to receive a call request message sent by the mobile access gateway control function entity, store the access information of the calling user terminal carried in the call request message, and send the call request message to the called network; receive the called network Returning the call response message, storing the access information of the called user terminal carried in the call response message; adding the access information of the calling user terminal and the access information of the called user terminal to the charging request message, and sending the message to the charging request message a charging collection function entity in the network protocol multimedia subsystem IMS of the calling network;
  • the charging collection function entity is configured to generate a charging bill according to the access information of the calling user terminal and the called user terminal.
  • the application server is further configured to receive a mobile access gateway control function entity of the calling network, or a user handover notification message sent by the called network, where the handover notification message includes the calling user terminal or the called user terminal currently located. Accessing the access information of the cell; adding the access information of the currently located cell of the calling user terminal or the called user terminal to the charging request message, and sending the information to the charging collection function entity; The method is configured to generate a switch charging bill according to the access information of the calling cell of the calling user terminal or the called user terminal.
  • the application server may be the application server shown in FIG. 7, and the mobile access gateway control function entity may be the network device shown in FIG.
  • the access information of the calling user terminal carried in the received call request message is stored, and the called user terminal carried in the received call response message is stored. Entering information; adding the access information of the called user terminal and the called user terminal to the charging request message, and sending the information to the CCF, so that the CCF can generate the calculation according to the access information of the calling user terminal and the called user terminal.
  • Fee bills In the embodiment of the present invention, the AS on the calling network side sends the user terminal access information necessary for generating the call charging bill to the CCF through the charging request message, and the CCF uniformly generates the call charging bill and the IMS service meter. The bill is simplified, so that the operator can perform the association of the billing bills when the user terminal makes a call through the IMS system without using the additional equipment to perform the association and merge of the bills.
  • the storage medium may include: a read only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like.

Description

基于多媒体子系统的计费话单生成方法、 系统及设备 本申请要求了 2010年 9月 10日提交的、 申请号为 201010280345.9、 发明名称为 "签约业务合并场景下对 QoS参数进行处理的方法及设备"的中 国申请的优先权， 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域， 特别涉及基于多媒体子系统的计费话单生成 方法、 系统及设备。
背景技术
网络协议多媒体子系统（ IP Multimedia Subsystem, IMS )是第三代通信 ( The third generation Partnership Project, 3 GPP )组织提出的一种支持 IP多 媒体业务的电信下一代核心网。
IMS系统使用应用层会话协议 ( Session Initiation Protocol, SIP )呼叫控 制机制来创建、 管理和终结各种类型的多媒体业务， 各种类型的客户端通过 IMS系统都可能建立起端到端的 IP通信， 并可获得所需要的服务质量。 IMS 系统还具有提供多媒体业务必须的功能如注册、 安全、 计费、 承载控制、 漫 游等。
用户终端如手机、 电话机等经过 IMS系统发起呼叫时， 通过移动接入网 关控制功能实体 ( Mobile Access Gateway Control Function, mAGCF )接入到 IMS网络系统中， 由 IMS网络系统中的应用服务器（ Application Server， AS ) 提供 IMS业务。
上述现有的用户终端经过 IMS系统进行通话时，该用户终端的呼叫网络 中的 mAGCF会生成该用户终端呼叫的计费话单， 而 IMS系统中的 AS和计 费收集功能实体 ( Charging Collection Function, CCF ) 配合生成该用户终端 的 IMS 业务的计费话单， 这就需要运营商通过额外的系统设备如调解设备 ( MEDIATION ), 或 BOSS系统对 mAGCF和 AS网元的计费话单进行关联 合并， 即关联到同一用户呼叫， 最后由 CCF储存该关联合并后的话单。 这样 使得用户终端经过 IMS系统的呼叫中计费信息的收集比较复杂。
发明内容
本发明实施例提供基于多媒体子系统的计费话单生成方法、 系统及设备， 简化了用户终端通过 IMS系统呼叫时计费话单生成的流程。本发明实施例提供 本发明实施例提供的一种基于多媒体子系统的计费话单生成方法， 包括： 接收呼叫请求消息， 储存所述呼叫请求消息中携带的主叫用户终端的接 入信息， 并将所述呼叫请求消息发送给被叫网络；
接收所述被叫网络返回的呼叫响应消息， 储存所述呼叫响应消息中携带 的被叫用户终端的接入信息；
将所述主叫用户终端的接入信息和被叫用户终端的接入信息添加到计费 请求消息中， 发送给主叫网络的网络协议多媒体子系统中的计费收集功能实 体， 以便所述计费收集功能实体根据所述主叫用户和终端被叫用户终端的接 入信息生成计费话单。
本发明实施例还提供一种应用服务器， 包括：
第一获取单元， 用于接收呼叫请求消息， 储存所述呼叫请求消息中携带 的主叫用户终端的接入信息， 并将所述呼叫请求消息发送给被叫网络；
第二获取单元， 用于接收所述被叫网络返回的呼叫响应消息， 储存所述 呼叫响应消息中携带的被叫用户终端的接入信息；
第一话单生成单元， 用于将所述第一获取单元储存的主叫用户终端的接 入信息和所述第二获取单元储存的被叫用户终端的接入信息添加到计费请求 消息中， 发送给计费收集功能实体， 以便所述计费收集功能实体根据所述主 叫用户终端和被叫用户终端的接入信息生成计费话单。
本发明实施例还提供一种网络设备， 包括：
呼叫接收单元， 用于接收用户终端发送的呼叫请求消息；
接入信息获得单元， 用于根据所述呼叫请求消息中主叫用户终端的标识 信息获得主叫用户终端的接入信息；
呼叫发送生成单元， 用于将所述主叫用户终端添加到所述呼叫请求消息， 发送给应用服务器， 以便所述应用服务器向计费收集功能实体发起计费请求， 请求所述计费收集功能实体根据所述主叫用户终端和被叫用户终端的接入信 息生成计费话单。
本发明实施例提供的一种基于多媒体子系统的计费话单生成系统， 包括： 应用服务器， 移动接入网关控制功能实体， 和计费收集功能实体； 所述移动接入网关控制功能实体， 用于接收用户终端发送的呼叫请求消 息， 根据所述呼叫请求消息中的主叫用户终端的标识信息获取对应的接入信 息； 将所述主叫用户终端的接入信息地添加到所述呼叫请求消息中， 发送给 应用服务器；
所述应用服务器， 用于接收所述移动接入网关控制功能实体发送的呼叫 请求消息， 储存所述呼叫请求消息中携带的主叫用户终端的接入信息， 并将 所述呼叫请求消息发送给被叫网络； 接收所述被叫网络返回的呼叫响应消息， 储存所述呼叫响应消息中携带的被叫用户终端的接入信息； 将所述主叫用户 终端的接入信息和被叫用户终端的接入信息添加到计费请求消息中， 发送给 主叫网络的网络协议多媒体子系统中的计费收集功能实体。
所述计费收集功能实体， 用于根据所述主叫用户终端和被叫用户终端的 接入信息， 生成计费话单。
本发明实施例的计费话单生成方法包括： 储存接收的呼叫请求消息中携 带的主叫用户终端的接入信息， 储存接收的呼叫响应消息中携带的被叫用户 终端的接入信息； 并将被叫用户终端和被叫用户终端的接入信息添加到计费 请求消息中，发送给 CCF，这样 CCF就能根据主叫用户终端和被叫用户终端的 接入信息生成计费话单。 由于本发明实施例中是主叫网络侧的 AS将生成呼叫 计费话单所必须的用户终端接入信息通过计费请求消息发送给 CCF， 由 CCF 统一生成呼叫计费话单及 IMS业务计费话单，这样运营商可以不用通过额外的 设备进行计费话单的关联合并，简化了用户终端通过 IMS系统呼叫时计费话单 生成的流程。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实 施例或现有技术描述中所需要使用的附图作简单地介绍， 显而易见地， 下面 描述中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动性的前提下， 还可以根据这些附图获得其他的附图。
图 1是基于 IMS系统进行呼叫时的结构示意图；
图 2是本发明方法实施例一提供的基于多媒体子系统的计费话单生成方 法的流程图； 图 3是本发明方法实施例二提供的基于多媒体子系统的计费话单生成方 法的流程图；
图 4是本发明方法实施例三提供的基于多媒体子系统的计费话单生成方 法的流程图；
图 5是本发明方法实施例四提供的基于多媒体子系统的计费话单生成方 法的流程图；
图 6是本发明方法实施例提供的基于多媒体子系统的计费话单生成方法 应用于实例的流程图；
图 7是本发明设备实施例一提供的应用服务器的结构示意图；
图 8是本发明设备实施例二提供的移动接入网关控制功能实体的结构示 意图。
具体实施方式
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行 清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而 不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有作 出创造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。
方法实施例一
一种基于多媒体子系统（以下简称 IMS系统）的计费话单生成方法， 本实 施例适应于如图 1所示的计费话单生成系统中应用服务器执行的方法， 方法流 程图如图 2所示， 包括：
步骤 101、 接收呼叫请求消息， 储存呼叫请求消息中携带的主叫用户终端 的接入信息， 并将该呼叫请求消息发送给被叫网络。
参考图 1所示， 当主叫用户终端经过 IMS系统向被叫用户发起呼叫时， 会 发送呼叫请求消息（ INVITE )，该呼叫请求消息通过主叫用户接入到达主叫网 络中的移动接入网关控制功能实体（以下简称 mAGCF ); mAGCF会根据呼叫 请求消息中该用户终端的标识信息向归属位置寄存器 （ Home Location Register, HLR )获取主叫用户终端的接入信息如用户位置区、 移动台级别、 网络呼叫参考号、 用户使用的承载或电信业务类型等；
可以理解， mAGCF对呼叫请求消息的头域和 /或值域进行扩展后， 将主叫 用户终端的接入信息添加到扩展的头域和 /或值域中， 并映射到 IMS业务控制 ( IMS service control, ISC )接口， 发送给应用服务器 （以下简称 AS )， 该呼 叫请求消息经过呼叫会话控制功能实体（ Call Session Control Function, CSCF ) 发送给特定的 AS;
AS从 ISC接口接收到呼叫请求消息后， 会解析该呼叫请求消息的头域和 / 或值域得到主叫用户终端的接入信息进行储存； 并将该呼叫请求消息通过 CSCF发送给被叫网络； 这里， 被叫网络也可以如图 1中主叫用户端的结构所 示， 为基于 IMS系统的呼叫结构， 也可以不是基于 IMS系统的呼叫结构。
可以理解， 这里的主叫用户终端的接入信息是指主叫用户终端当前接入 网络的信息如在电路交换域（CS ) 的接入信息， 包括生成呼叫的计费话单所 必须的信息。
步骤 102、 接收被叫网络返回的呼叫响应消息， 储存呼叫响应消息中携带 的被叫用户终端的接入信息。
可以理解，如果被叫网络是基于 IMS系统的呼叫结构， 则呼叫请求消息到 达被叫网络中的 mAGCF, mAGCF从被叫用户终端对应的 HLR获取被叫用户终 端的接入信息如用户位置区、 移动台级别、 网络呼叫参考号等； 并扩展呼叫 响应消息的头域和 /或值域， 并将被叫用户终端的接入信息添加到扩展的呼叫 响应消息的头域和 /或值域， 返回给主叫网络， 该呼叫响应消息经过 CSCF到达 AS; AS接收到呼叫响应消息，解析扩展的头域和 /或值域得到被叫用户终端的 接入信息进行储存。
如果被叫网络不是基于 IMS系统的呼叫结构，则呼叫请求消息到达的是被 叫网络中的移动交换中心（ Mobile Switching Center, MSC ); MSC获取被叫用 户终端的接入信息后， 扩展呼叫响应消息的头域和 /或值域， 并将被叫用户终 端的接入信息携带在扩展的头域和 /或值域中， 返回给主叫网络； 该呼叫响应 消息经过 CSCF到达 AS， AS接收到呼叫响应消息， 解析得到被叫用户终端的 接入信息进行储存。
这里的被叫用户终端的接入信息是指被叫用户终端当前接入网络的信 息， 包括生成呼叫的计费话单所必须的信息。
步骤 103、 将主叫用户终端的接入信息和被叫用户终端的接入信息添加到 计费请求消息 （ Accounting Request， ACR ) 中， 发送给该主叫网络中网络协 议多媒体子系统 IMS系统中的计费收集功能实体， 以便计费收集功能实体（以 下简称 CCF )根据主叫用户终端和被叫用户终端的接入信息生成计费话单。
AS可以通过扩展属性值对（Attribute Value Pairs, AVP )格式的计费请求 消息的头域和 /或值域， 在扩展的计费请求消息的头和 /域或值域中添加主叫用 户终端和被叫用户终端的接入信息。 且在计费请求消息中还包括主叫用户终 端对应的 IMS业务相关信息， 这样 CCF接收到计费请求消息后， 即可生成 IMS 业务计费话单。
可以理解， CCF在接收到计费请求消息，根据其中的接入信息生成计费话 单时， 生成主叫呼叫被叫的计费话单和 IMS业务的计费话单， 其中主叫呼叫被 叫的计费话单的生成方法如现有的 mAGCF生成话单的方法一致， 在生成过程 中， 需要根据主叫用户终端和被叫用户终端的接入信息生成； 而在生成 IMS 业务的计费话单时，是根据主叫用户终端对应的 IMS业务信息生成的， 具体生 成方法是现有的流程， 在此不再赘述。
例如： 主叫终端 A在用户位置区 al呼叫被叫终端 B， 此时被叫终端 B是在 用户位置区 bl，则 CCF根据计费策略中关于用户位置区 al的终端呼叫用户位置 区 bl的终端的计费方式， 生成呼叫的计费话单， 并根据计费策略中关于用户 终端 A使用的 IMS业务类型的计费方式， 生成 IMS的计费话单等。
可见， 本发明实施例的计费话单生成方法包括： 储存接收的呼叫请求消 息中携带的主叫用户终端的接入信息， 储存接收的呼叫响应消息中携带的被 叫用户终端的接入信息； 并将被叫用户终端和被叫用户终端的接入信息添加 到计费请求消息中， 发送给主叫网络中 IMS系统中的 CCF， 这样 CCF就能根据 主叫用户终端和被叫用户终端的接入信息生成计费话单。 由于本方法实施例 中， 系统不用通过 mAGCF, 及 AS和 CCF单独生成各自的话单， 而是将生成呼 叫话单所必须的用户终端接入信息通过计费请求消息发送给 CCF，由 CCF统一 生成呼叫和 IMS业务话单，这样运营商可以不用通过额外的设备进行计费话单 的关联合并， 简化了用户终端通过 IMS系统呼叫时计费话单生成的流程。
需要说明的是， 由于 IMS系统中的呼叫是使用 SIP协议信令的， 则上述步 骤中提到的呼叫请求消息是 SIP消息， 而呼叫响应消息也可能是 SIP消息， 因此 mAGCF在获得主叫用户终端的接入信息，可以扩展 SIP呼叫请求消息的计费收 集头域 ( P-Charging-Vector )和 /或访问网洛标识头域 ( P-Visited-Network-ID )， 用 P-Charging-Vector头域 /或 P-Visited-Network-ID头域来携带主叫用户终端的 接入信息。
将主叫用户终端的接入信息添加到扩展的 SIP消息头域中， 其中， 在 P-Charging- Vector头域中可以添加如下表 1中所示的接入信息， 其中用户的移 动台级别、 网络呼叫参考号、 详细原因值和释放类型是必须添加的接入信息， 而其它信息则可以根据不用运营商的 任选其中一个或多个来添加：
Figure imgf000009_0001
接入信息名称 接入信息定义 格式
用户的移动台级别 msclass mark 字符串 （2..3) 网络呼叫参考号 ncr 字符串（1..8) 移动台申请的无线话务信道类型 radiochanrequested 整型 (0<3)
固定网络数据业务用户速率 fhur 整型 (0<11)
空中接口用户速率 AiurRequested 整型（1<12)
Speech Version
移动用户支持的最高语音版本 字符串（1)
Supported
移动用户使用的语音版本 Speech Version Used 字符串（1) 移动台和网络之间的 "速率适配"
Rate Indication 字符串（1) 参数
保证比特率 Guaranteed Bit Rate 整型（1<118) 最大比特率 Maximum Bit Rate 整型（1<118) 移动台级别标识 3 classmark3 字符串 (2) 用户的逻辑计费区编码 Charge Area Code 字符串（1..3)
BSC或 RNC的初始信令点编码 orgRNCorBSCId 字符串 (3)
初始 MSC的信令点编码 orgMSCId 字符串 (3)
HSCSD的速率 Channel mode 整型 (0<15)
HSCSD的信道个数 channel 整型 (0<15) 全局呼叫参考号 Global Call 字符串（1..24) Reference
小区码 Zone code 字符串 (2) 费率码 Tariff code 整型 (0<255) 用户使用的承载或电信业务类型 Basic Service 字符串（1) 该参数指示所采用电信业务是透 Transparency
整型 (0<1) 明模式还是非透明模式 Indicator
使用的 Modem类型 Modem Type 整型 (0<33)
中间速率 Intermediate Rate 整型 (2<3) 指示用户使用的是数据业务还是
Audio Data Type 整型 (0<1) 语音业务
整型
该次呼叫所占用的 B信道数 b-ch-number
(0<4294967295) 位置号码 Location Num 字符串（1..8)
Location
位置号码地址属性 整型 (0<4)
NumberNai
使用的无线话务信道类型 Radiochanused 整型 (0<1)
释放类型 Release party 整形 (0<255) 整形
详细原因值 Release cause
(0<4294967295) 而在 P-Visited-Network-ID头域中可以 如下表 2中所示的接入信息：
Figure imgf000010_0001
Figure imgf000010_0002
可以理解， 如果被叫网络是基于 IMS系统的呼叫结构， 则被叫网络的 mAGCF获得被叫用户终端的接入信息， 可以扩展 SIP呼叫响应消息的 P-Charging-Vector头 i或和 /或 P-Visited-Network-ID头 i或，将被叫用户终端的接入 信息添加到扩展的 SIP消息头域中， 在 P-Charging-Vector头域中除添加上述表 1 中必要的信息， 即用户的移动台级别、 网络呼叫参考号、 详细原因值和释放 类型， 还需要添加下述表 3中所示的接入信息； 而在 P-Visited-Network-ID头域 中可以添加如上表 2中所示的接入信
Figure imgf000011_0001
在一个具体的实施例中， 可选的， 本实施例的方法还可以包括步骤 104和
105:
步骤 104、 接收主叫网络的移动接入网关控制功能实体， 或被叫网络发送 的用户切换通知消息， 切换通知消息中包括主叫用户终端或被叫用户终端当 前所在接入小区的接入信息；
可以理解， 在呼叫接通后， 主叫和被叫用户终端可能会在小区间移动， 当通话双方的任一用户终端的移动导致小区切换时， 用户终端的接入信息就 会发生改变， 就需要当前用户终端所在小区的 mAGCF发送用户切换通知消息 给 IMS系统中的 AS， 其中携带用户终端当前所在接入小区的接入信息。
步骤 105、 将主叫用户终端或被叫用户终端当前所在接入小区的接入信息 添加到计费请求消息中， 发送给计费收集功能实体， 以便计费收集功能实体 根据主叫用户终端或被叫用户终端当前所在接入小区的接入信息生成切换计 费话单。
AS在接收到用户切换通知消息后， 解析得到其中用户终端当前所在接入 小区的接入信息， 并通过计费请求消息将用户终端当前所在接入小区的接入 信息发送给 CCF， 则 CCF会重新生成切换计费话单， 具体实现方法如上述步骤 103中所述， 在此不再赘述。
这样随着呼叫双方的位置变化导致接入信息变化时， mAGCF将该变化后 的信息及时上报给 AS， 由 AS发起到 CCF的计费话单的更新， 提高的了计费的 实时性。 方法实施例二
一种基于多媒体子系统的计费话单生成方法， 本实施例的方法适用于如 图 1所示的系统中， 是主叫用户终端网络侧的移动接入网关控制功能实体所执 行的方法， 方法流程图如图 3所示， 包括：
步骤 201、 接收主叫用户终端发送的呼叫请求消息。
可以理解，主叫用户终端基于 IMS系统发起呼叫时，会发送呼叫请求消息， 该呼叫请求消息经过 mAGCF到达相应的 AS。
步骤 202、 根据呼叫请求消息中的主叫用户终端的标识信息获取对应的接 入信息。
当 mAGCF接收到呼叫请求消息后， 根据其中主叫用户终端的标识信息向 HLR获取对应的接入信息， 该接入信息在主叫用户终端接入移动网络时， 在 寄存器中储存的， 该流程为现有的流程， 在此不进行赘述。 且这里主叫用户 终端的接入信息是指主叫用户终端当前所在接入网络的接入信息， 是生成呼 叫计费话单所必须的信息， 具体的接入信息必须包括如上述表 1中必要的信息 即用户的移动台级别、 网络呼叫参考号、 详细原因值和释放类型， 和 /或表 2 所示的信息。
步骤 203、 将主叫用户终端的接入信息添加到呼叫请求消息中， 发送给应 用服务器，以便应用服务器向主叫网络的 IMS系统中的计费收集功能实体发起 计费请求， 请求计费收集功能实体根据主叫用户终端的接入信息， 和被叫用 户终端的接入信息及相应的计费策略生成计费话单。
可以理解，在基于 IMS系统呼叫时，呼叫请求消息是 SIP协议消息， mAGCF 可以扩展 SIP呼叫倚求消息的 P-Charging- Vector头域和 /或 P-Visited-Network-ID 头域， 将主叫用户终端的接入信息添加到扩展的 SIP呼叫请求消息的头域中， 发送给应用服务器， 对于应用服务器的执行方法如方法实施例一所述， 在此 不再赘述。
且在计费请求消息中还包括主叫用户终端对应的 IMS业务相关信息，即生 成 IMS业务计费话单所必须的信息， 这样 CCF接收到计费请求消息后， 即可生 成 IMS业务计费话单。
可见， 本发明实施例的话单生成方法包括： 主叫用户终端网络侧的 mAGCF通过呼叫请求消息将主叫用户终端的接入信息上报给应用服务器， 而 不生成呼叫计费话单， 这样应用服务器向 CCF进行计费请求，请求 CCF进行话 单生成， CCF统一将生成呼叫计费话单和 IMS业务计费话单的信息都收集， 生 成计费话单， 就可以不用额外的设备进行话单的合并关联， 简化了用户终端 通过 IMS系统呼叫时计费话单生成的流程。
在一个具体的实施例中， 本实施例的方法还可以包括：
步骤 204、 当主叫用户终端发生接入小区切换后， 发送用户切换通知消息 给应用服务器， 在切换通知消息中包括主叫用户终端当前所在接入小区的接 入信息； 以便应用服务器向计费收集功能实体发起计费请求， 请求计费收集 功能实体根据主叫用户终端当前所在接入小区的接入信息生成切换计费话 单。
可以理解， mAGCF可以扩展切换通知消息的 P-Charging- Vector头域和 /或 P-Visited-Network-ID头域， 并将主叫用户终端当前接入小区的接入信息添加 到扩展的头域中， 发送给应用服务器。
这样随着主叫用户终端的位置变化导致接入信息变化时， mAGCF将该变 化后的信息及时上报给 AS， 由 AS发起到 CCF的计费话单的更新， 提高的了计 费的实时性。 方法实施例三
一种基于多媒体子系统的计费话单生成方法， 本实施例的方法适用于如 图 1所示的系统中， 本实施例的方法是被叫用户终端网络侧的移动接入网关控 制功能实体所执行的方法， 方法流程图如图 4所示， 包括：
步骤 301、 接收被叫用户终端发送的呼叫响应消息。
可以理解， 本实施实例中的被叫网络是基于 IMS系统的呼叫结构，被叫用 户终端接收到基于 IMS系统的呼叫时，会返回呼叫响应消息， 该呼叫响应消息 经过 mAGCF返回给主叫用户终端网络侧。
步骤 302、 根据呼叫响应消息中的被叫用户终端的标识信息获取对应的接 入信息。
当 mAGCF接收到呼叫响应消息后， 根据其中被叫用户终端的标识信息向 HLR获取对应的接入信息， 该接入信息在被叫用户终端接入移动网络时， 在 寄存器中储存的， 该流程为现有的流程， 在此不进行赘述。 且这里被叫用户 终端的接入信息是指被叫用户终端当前所在接入网络的接入信息， 是生成呼 叫计费话单所必须的信息， 具体的接入信息必须包括如上述表 1所示的必要信 息即用户的移动台级别、 网络呼叫参考号、 详细原因值和释放类型， 和表 3所 示的信息。
步骤 303、 将被叫用户终端的接入信息添加到呼叫响应消息中， 发送给应 用服务器， 以便应用服务器向计费收集功能实体发起计费请求， 请求计费收 集功能实体根据被叫用户终端的接入信息和主叫用户终端的接入信息生成计 费话单。
可以理解，在基于 IMS系统呼叫时，呼叫响应消息是 SIP协议消息， mAGCF 可以扩展 SIP呼叫响应消息的 P-Charging-Vector头 i或和 /或 P-Visited-Network-ID 头域， 将被叫用户终端的接入信息添加到扩展的 SIP呼叫响应消息的头域中， 发送给应用服务器， 对于应用服务器的执行方法如方法实施例一所述， 在此 不再赘述。
可见， 本发明实施例的话单生成方法包括： 被叫用户终端网络侧的 mAGCF通过呼叫响应消息将被叫用户终端的接入信息报给应用服务器， 而不 生成呼叫计费话单， 这样应用服务器向 CCF进行计费请求，请求 CCF进行话单 生成， CCF统一将生成呼叫计费话单和 IMS业务计费话单的信息都收集， 生成 话单， 就可以不用额外的设备进行话单的合并关联， 简化了用户终端通过 IMS 系统呼叫时计费话单生成的流程。
在一个具体的实施例中， 本实施例的方法还可以包括：
步骤 304、 当被叫用户终端发生接入小区切换后， 发送用户切换通知消息 给应用服务器， 在切换通知消息中包括被叫用户终端当前所在接入小区的接 入信息； 以便应用服务器向计费收集功能实体发起计费请求， 请求计费收集 功能实体根据被叫用户终端当前所在接入小区的接入信息， 及相应的计费策 略生成切换计费话单。
可以理解， mAGCF可以扩展切换通知消息的 P-Charging- Vector头域和 /或 P-Visited-Network-ID头域， 并将被叫用户终端当前接入小区的接入信息添加 到扩展的头域中， 发送给应用服务器。
这样随着被叫用户终端的位置变化导致接入信息变化时， mAGCF将该变 化后的信息及时上报给 AS， 由 AS发起到 CCF的计费话单的更新， 提高的了计 费的实时性。 方法实施例四
一种基于多媒体子系统的计费话单生成方法， 本实施例的方法适用于如 图 1所示的系统， 本实施例是主叫网络的 IMS系统中的 CCF所执行的方法， 流 程图如图 5所示， 包括：
步骤 401、 接收网络协议多媒体子系统 IMS的应用服务器发送的计费请求 消息， 在计费请求消息携带主叫用户终端和被叫用户终端的接入信息。
计费请求消息中携带的主叫和被叫用户终端的接入信息分别由主叫和被 叫用户终端当前所在网路侧中的 mAGCF (或 MSC )向 HLR获取的， 并分别通 过呼叫请求消息和呼叫响应消息发送给 AS的。
这里的接入信息是指用户终端接入呼叫网络的信息， 即为生成呼叫计费 话单所必须的信息。 主叫用户终端的接入信息如上述表 1和表 2所示， 被叫用 户终端的接入信息如上述表 1到 3所示。
可以理解，在计费请求消息中还包括主叫用户终端对应的 IMS业务相关信 息，即生成 IMS业务计费话单所必须的信息，这样 CCF接收到计费请求消息后， 即可生成 IMS业务计费话单。
步骤 402、 解析计费请求消息得到主叫用户和被叫用户的接入信息。
步骤 403、 根据主叫用户和被叫用户的接入信息生成计费话单。
可以理解， CCF在接收到计费请求消息，根据其中的接入信息生成计费话 单时， 生成主叫呼叫被叫的计费话单， 其中主叫呼叫被叫的计费话单的生成 方法如现有的 mAGCF生成话单的方法一致； 同时 CCF还要生成该主叫用户终 端对应的 IMS业务计费话单， 而 IMS业务的计费话单是现有流程， 在此不再赘 述。
例如： 主叫终端 A在用户位置区 al呼叫被叫终端 B， 此时被叫终端 B是在 用户位置区 bl，则 CCF根据计费策略中关于用户位置区 al的终端呼叫用户位置 区 bl的终端的计费方式， 生成呼叫的计费话单， 而根据计费策略中关于用户 终端使用的 IMS业务类型的计费方式， 生成 IMS的计费话单等。
可见， 本发明实施例的计费话单生成方法包括： CCF接收到 AS发送计费 请求消息， 根据其中携带的主叫用户终端和被叫用户终端的接入信息， 及相 应的计费策略生成计费话单。这样通过 CCF将生成呼叫计费话单所必须的信息 收集后， 生成该呼叫过程中呼叫的计费话单， 同时生成 IMS业务计费话单， 就 不用额外的设备进行话单关联合并，简化了基于 IMS系统的呼叫中计费话单生 成的流程。
在一个具体的实施例中， 本实施例的方法还可以包括：
步骤 404、 接收计费请求消息， 其中携带主叫用户终端或被叫用户终端当 前所在接入小区的接入信息； 根据主叫用户终端或被叫用户终端当前所在接 入小区的接入信息， 及相应的计费策略生成切换计费话单。
这样随着呼叫双方的位置变化导致接入信息变化时， mAGCF将该变化后 的信息及时上报给 AS， 由 AS发起到 CCF的计费话单的更新， CCF会根据用户 终端切换后当前所在接入小区的接入信息， 生成切换计费话单， 提高的了计 费的实时性。 以下通过一个具体的应用实例来说明本发明实施例提供的方法， 本实施 例中主叫网络和被叫网络都是基于 IMS系统的呼叫结构， 方法流程图如图 6所 示， 包括：
步骤 501、 主叫用户终端发送呼叫请求消息；
步骤 502、 主叫用户终端网络侧的 mAGCF接收到用户终端的呼叫请求消 息后， 根据其中主叫用户终端的用户终端标识， 向 HLR请求获得该主叫用户 终端的接入信息， 如用户位置区、 移动台级别、 网络呼叫参考号等。
而 HLR通过将这些接入信息映射到 ISDN用户部分 （Integrated Services Digital Network User Part, ISUP )、 移动应用部分 ( Mobile Application Part, MAP )、事物处理能力应用部分（ Transaction Capability Application Part, TCAP ) 协议信令中， 发送给 mAGCF； mAGCF扩展 SIP协议的呼叫请求消息的 P-Charging- Vector头域和 P-Visited-Network-ID头域， 将获得的主叫用户终端的 接入信息添加到这两个头域中， 如下表 4是经过扩展后的 P-Charging-Vector头 域的内容：
4
P-Charging- Vector:
地址值（ icid-value )="AyretyU0dm+6O2IrT5tAFrbHLso=023551024"; orig-ioi= scsc!3.domainl.huawei.com;msclassmark=" 575881"; ncr="1608C20800AA";radiochanrequested=0;fhur=l ;
aiurRequested= 1； speechVersionSupported="0000 0001 "；
rateIndication="2"; guaranteedBitRate= 1；
maximumB itRate= 1； classmark3="575884";
chargeAreaCode="123"; orgRNCorBSCId="123456";
orgMSCId=" 123456";location um=" 123456";
location umberNai= 1； channelmode= 1； channel= 1；
globalCallReference="4061608C20800AA";zonecode=" 1234";
tariffcode=3； basic Service="01 "； transparencyIndicator= 1；
modemType=l; intermediateRate=2;audioDataType= 1； b-ch-number=3 而扩展后的 P-Visited-Network-ID头 i或的内容为： P-Visited-Network-ID： "8613900139"。
在扩展的呼叫请求消息头域添加了主叫用户终端的接入信息后， 形成了 INVITE消息， mAGCF将 INVITE消息通过 CSCF发送给 AS。
步骤 503 、 AS接收到 INVITE消息后， 解析 INVITE消息中 的 P-Charging- Vector头域和 P-Visited-Network-ID头域得到主叫用户终端的接入 信息并进行保存。
步骤 504、 AS通过 CSCF将该 INVITE消息发送到被叫用户终端所在网络 侧。
步骤 505、被叫用户终端所在网络侧通过 CSCF返回呼叫响应消息如 18X消 息或 200消息给 AS， 在呼叫 响应消息的 P-Charging- Vector头域和 P-Visited-Network-ID头域携带被叫用户终端的接入信息。
可以理解， 呼叫响应消息的 P-Charging- Vector头 i或和 P-Visited-Network-ID 头域在携带被叫用户终端的接入信息的方法， 参考呼叫请求消息中携带主叫 用户终端的接入信息的方法， 在此不再赘述。
步骤 506、 AS接收到呼叫响应消息后， 解析呼叫响应消息中的 P-Charging- Vector头域和 P-Visited-Network-ID头域得到被叫用户终端的接入 信息并进行保存。
步骤 507、 AS扩展 AVP格式的计费请求消息的头域或值域， 在扩展的头域 添加步骤 503中保存的主叫用户终端的接入信息， 和步骤 506中保存的被叫用 户终端的接入信息； 并将添加信息后的计费请求消息通过 Rf接口发送给 CCF。
在计费请求消息中还包括主叫用户终端对应的 IMS业务相关信息， 这样 CCF接收到计费请求消息后， 即可生成 IMS业务计费话单。
CCF接收到计费请求消息后，根据被叫和主叫用户终端的接入信息，及相 应的计费策略生成呼叫计费话单和 IMS业务计费话单，具体生成过程如实施例 一所述， 在此不再赘述。
可选的， 如果通话过程中产生了切换， 则还包括如下步骤：
步骤 508、 在通话过程中主叫用户终端发生了小区切换， 当前所在接入小 区的 mAGCF通过扩展切换通知消息 （ INFO ) 的 P-Charging- Vector头域和 P-Visited-Network-ID头域， 在扩展的头域中添加主叫用户终端当前接入小区 的接入信息， 并将添加接入信息后的切换通知消息发送给 AS。
步骤 509、 AS接收到该切换通知消息后， 发送计费请求消息给 CCF进行切 换计费话单生成。
本实施例中， 通过 AS将主叫用户终端的接入信息和被叫用户终端的接入 信息添加到计费请求消息中，发送给 CCF， 这样 CCF就能根据主叫用户终端和 被叫用户终端的接入信息， 及相应的预置策略生成计费话单。 由于在系统中 mAGCF, 和 CCF上不用分别生成呼叫计费话单和 IMS业务计费话单， 而是通 过 AS将生成呼叫计费话单所必须的用户终端接入信息， 及生成 IMS业务计费 话单所必须的 IMS业务信息携带在计费请求消息发送给 CCF， 由 CCF统一生成 呼叫和 IMS业务计费话单， 这样运营商可以不用通过额外的设备对 mAGCF和 CCF各自生成的话单进行关联合并，简化了用户终端通过 IMS系统呼叫时计费 话单生成的流程。 设备实施例一
一种应用服务器， 结构示意图如图 7所示， 包括：
第一获取单元 10， 用于接收呼叫请求消息， 储存呼叫请求消息中携带的 主叫用户终端的接入信息， 并将呼叫请求消息发送给被叫网络；
可以理解， 这里的主叫用户终端的接入信息是指主叫用户终端当前接入 网络的信息如在电路交换域（CS ) 的接入信息， 包括生成呼叫的计费话单所 必须的信息。 具体的信息如上述表 1和表 2所示。
当主叫用户终端经过 IMS系统向被叫用户发起呼叫时，会发送呼叫请求消 息，该呼叫请求消息通过主叫用户接入到达 mAGCF; mAGCF获得主叫用户终 端的接入信息后， 可以扩展呼叫请求消息的 P-Charging- Vector头域和 /或 P-Visited-Network-ID头域， 并将主叫用户终端的接入信息添加到扩展的头域 后， 发送给 AS， 该呼叫请求消息会通过 CSCF到达 AS。 则主叫信息获得单元 10接收到呼叫请求消息后， 可以解析该消息的头域， 来获得主叫用户终端的 接入信息后， 将呼叫请求消息发送给被叫网络。
第二获取单元 11， 用于接收被叫网络返回的呼叫响应消息， 储存呼叫响 应消息中携带的被叫用户终端的接入信息；
这里的被叫用户终端的接入信息是指被叫用户终端当前接入网络的信 息， 包括生成呼叫的计费话单所必须的信息。 具体的信息如上述表 1到表 3所 示。
呼叫请求消息到达被叫网路的 mAGCF或 MSC， 由 mAGCF或 MSC获得被 叫用户终端的接入信息， 可以扩展呼叫响应消息的 P-Charging- Vector头域和 / 或 P-Visited-Network-ID头域， 并将被叫用户终端的接入信息添加到扩展的头 域后， 发送给 AS。 当第二获取单元 11接收到呼叫响应消息后， 可以解析该消 息的头域， 来获得被叫用户终端的接入信息。
第一话单生成单元 12， 用于将第一获取单元 10储存的主叫用户终端的接 入信息和第二获取单元 11储存的被叫用户终端的接入信息添加到计费请求消 息中，发送给主叫网络的 IMS系统中的计费收集功能实体， 以便计费收集功能 实体根据主叫用户终端和被叫用户终端的接入信息生成计费话单。
第一话单生成单元 12可以通过扩展 AVP格式的计费请求消息的头域和 /或 值域， 在扩展的计费请求消息的头域和 /或值域中添加主叫用户终端和被叫用 户终端的接入信息，这样 CCF接收到计费请求消息后，根据主叫用户和被叫用 户终端的接入信息， 及与呼叫相关的计费策略生成该呼叫过称对应的呼叫计 费话单。
且在计费请求消息中还包括主叫用户终端对应的 IMS业务相关信息，即生 成 IMS业务计费话单所必须的信息， 这样 CCF接收到计费请求消息后， 即可生 成 IMS业务计费话单。
可见， 本实施例的应用服务器中： 第一获取单元 10储存接收的呼叫请求 消息中携带的主叫用户终端的接入信息， 第二获取单元 11储存接收的呼叫响 应消息中携带的被叫用户终端的接入信息； 并由第一话单生成单元 12将被叫 用户终端和被叫用户终端的接入信息添加到计费请求消息中， 发送给主叫网 络中 IMS系统中的 CCF， 这样 CCF就能根据主叫用户终端和被叫用户终端的接 入信息生成计费话单。 由于本方法实施例中应用服务器是将生成呼叫话单所 必须的用户终端接入信息通过计费请求消息发送给 CCF，由 CCF统一生成呼叫 和 IMS业务话单，这样运营商可以不用通过额外的设备进行计费话单的关联合 并， 简化了用户终端通过 IMS系统呼叫时计费话单生成的流程。
可以理解， 本实施例的应用服务器还可以包括：
第三获取单元 13， 用于接收主叫网络的移动接入网关控制功能实体， 或 被叫网络发送的用户切换通知消息， 储存切换通知消息中包括主叫用户终端 或被叫用户终端当前所在接入小区的接入信息；
切换话单生成单元 14， 用于将第三获取单元 13储存的切换通知消息中主 叫用户终端或被叫用户终端当前所在接入小区的接入信息添加到计费请求消 息中， 发送给计费收集功能实体， 以便计费收集功能实体根据主叫用户终端 或被叫用户终端当前所在接入小区的接入信息生成切换计费话单。
当呼叫接通后， 当主叫和被叫用户终端发生小区切换时， 当前用户终端 所在小区的 mAGCF发送用户切换通知消息给 IMS系统中的 AS， 当第三获取单 元 13接收到用户切换通知消息后储存接入信息， 由切换话单生成单元 14将用 户切换通知消息中包括的用户终端当前所在接入小区的接入信息， 添加到计 费请求消息中，发送给 CCF生成计费话单。这样随着呼叫双方的位置变化导致 接入信息变化时， mAGCF将该变化后的信息及时上报给 AS， 由本实施例中的 AS发起到 CCF的计费话单的更新， 提高的了计费的实时性。 设备实施例二
一种网络设备， 本实施例的设备可以是主叫网络的 mAGCF, 结构示意图 如图 8所示， 包括：
呼叫接收单元 20， 用于接收用户终端发送的呼叫请求消息； 接入信息获得单元 21， 用于根据呼叫接收单元 20接收的呼叫请求消息中 的主叫用户终端的标识信息获得主叫用户终端的接入信息；
呼叫发送生成单元 22， 用于将接入信息获得单元 21获得的主叫用户终端 的接入信息添加到呼叫请求消息中， 发送给应用服务器， 以便应用服务器向 计费收集功能实体发起计费请求， 请求计费收集功能实体根据主叫用户终端 的接入信息生成计费话单。
可以理解，主叫用户终端基于 IMS系统发起呼叫时，会发送呼叫请求消息， 该呼叫请求消息会到达 mAGCF，由 mAGCF中的呼叫接收单元 20接收呼叫请求 消息， 接入信息获得单元 21根据呼叫请求消息中主叫用户终端的标识信息获 得主叫用户终端的接入信息， 并由呼叫发送生成单元 22将该主叫用户终端的 接入信息添加到呼叫请求消息中发送给 AS， 再由 AS发送给被叫网络。
这样应用服务器向 CCF进行计费请求， 请求 CCF进行话单生成， CCF统一 将生成呼叫计费话单和 IMS业务计费话单的信息都收集， 生成计费话单， 就可 以不用额外的设备进行话单的合并关联，简化了用户终端通过 IMS系统呼叫时 计费话单生成的流程。
可以理解， 在一个具体的实施例中， 网络设备还可以包括：
切换发送生成单元 23， 用于当主叫用户终端发生接入小区切换后， 发送 用户切换通知消息给应用服务器， 切换通知消息中包括主叫用户终端当前所 在接入小区的接入信息；
以便应用服务器向计费收集功能实体发起计费请求， 请求计费收集功能 实体根据主叫用户终端当前所在接入小区的接入信息， 及相应的计费策略生 成切换计费话单。
这样随着主叫用户终端的位置变化导致接入信息变化时， 切换发送生成 单元 23将该变化后的信息及时上报给主叫网络的 AS， 由 AS发起到 CCF的计费 话单的更新， 提高的了计费的实时性。
本发明实施例还提供一种基于多媒体子系统的计费话单生成系统， 包括： 应用服务器， 移动接入网关控制功能实体， 和计费收集功能实体， 该系统中 各个设备之间通过如方法实施例所述的方法， 进行计费话单的生成， 其中： 移动接入网关控制功能实体， 用于接收用户终端发送的呼叫请求消息， 根据呼叫请求消息中的主叫用户终端的标识信息获取对应的接入信息； 将主 叫用户终端的接入信息地添加到呼叫请求消息中， 发送给应用服务器；
应用服务器， 用于接收移动接入网关控制功能实体发送的呼叫请求消息， 储存呼叫请求消息中携带的主叫用户终端的接入信息， 并将呼叫请求消息发 送给被叫网络； 接收被叫网络返回的呼叫响应消息， 储存呼叫响应消息中携 带的被叫用户终端的接入信息； 将主叫用户终端的接入信息和被叫用户终端 的接入信息添加到计费请求消息中， 发送给主叫网络的网络协议多媒体子系 统 IMS中的计费收集功能实体；
计费收集功能实体， 用于根据主叫用户终端和被叫用户终端的接入信息， 生成计费话单。
可选的， 应用服务器， 还用于接收主叫网络的移动接入网关控制功能实 体， 或被叫网络发送的用户切换通知消息， 切换通知消息中包括主叫用户终 端或被叫用户终端当前所在接入小区的接入信息； 将主叫用户终端或被叫用 户终端当前所在接入小区的接入信息添加到计费请求消息中， 发送给计费收 集功能实体； 计费收集功能实体， 还用于根据主叫用户终端或被叫用户终端 当前所在接入小区的接入信息， 生成切换计费话单。
应用服务器可以是图 7所示的应用服务器， 移动接入网关控制功能实体可 以是图 8所示的网络设备。
本发明实施例的计费话单生成方法、 系统及设备中： 储存接收的呼叫请 求消息中携带的主叫用户终端的接入信息， 储存接收的呼叫响应消息中携带 的被叫用户终端的接入信息； 并将被叫用户终端和被叫用户终端的接入信息 添加到计费请求消息中，发送给 CCF， 这样 CCF就能根据主叫用户终端和被叫 用户终端的接入信息生成计费话单。 由于本发明实施例中是主叫网络侧的 AS 将生成呼叫计费话单所必须的用户终端接入信息通过计费请求消息发送给 CCF, 由 CCF统一生成呼叫计费话单及 IMS业务计费话单， 这样运营商可以不 用通过额外的设备进行计费话单的关联合并，简化了用户终端通过 IMS系统呼 叫时计费话单生成的流程。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成， 该程序可以存储于一计算机可 读存储介质中， 存储介质可以包括： 只读存储器 （ROM )、 随机存取存储器 ( RAM ), 磁盘或光盘等。
以上对本发明实施例所提供的基于多媒体子系统的计费话单生成方法、 施方式进行了阐述， 以上实施例的说明只是用于帮助理解本发明的方法及其 核心思想； 同时， 对于本领域的一般技术人员， 依据本发明的思想， 在具体 实施方式及应用范围上均会有改变之处， 综上所述， 本说明书内容不应理解 为对本发明的限制。

Claims

权利要求 书
1、 一种基于多媒体子系统的计费话单生成方法， 其特征在于， 包括： 接收呼叫请求消息， 储存所述呼叫请求消息中携带的主叫用户终端的接 入信息， 并将所述呼叫请求消息发送给被叫网络；
接收所述被叫网络返回的呼叫响应消息， 储存所述呼叫响应消息中携带 的被叫用户终端的接入信息；
将所述主叫用户终端的接入信息和被叫用户终端的接入信息添加到计费 请求消息中， 发送给主叫网络的网络协议多媒体子系统中的计费收集功能实 体， 以便所述计费收集功能实体根据所述主叫用户和终端被叫用户终端的接 入信息生成计费话单。
2、 如权利要求 1所述的方法， 其特征在于， 还包括：
接收主叫网络的移动接入网关控制功能实体， 或被叫网络发送的用户切 换通知消息， 所述切换通知消息中包括主叫用户终端或被叫用户终端当前所 在接入小区的接入信息；
将所述主叫用户终端或被叫用户终端当前所在接入小区的接入信息添加 到计费请求消息中， 发送给所述计费收集功能实体， 以便所述计费收集功能 实体根据所述主叫用户终端或被叫用户终端当前所在接入小区的接入信息， 生成切换计费话单。
3、 如权利要求 1或 2所述的方法， 其特征在于，
所述主叫用户终端的接入信息携带在所述呼叫请求消息的计费收集头域 P-Charging- Vector和 /或访问网洛标识头域 P-Visited-Network-ID中；
所述被叫用户终端的接入信息携带在所述呼叫响应消息的计费收集头域 P-Charging- Vector和 /或访问网洛标识头域 P-Visited-Network-ID中。
4、 如权利要求 3所述的方法， 其特征在于， 所述主叫用户终端或被叫用 户终端的接入信息包括移动交换中心 MSC的 E.164串号，和 /或用户的移动台级 别、 网络呼叫参考号、 详细原因值和释放类型；
所述被叫用户终端的接入信息还包括： 被叫国际移动用户识别码 IMSI、 被叫国际移动设备身份码 IMEI和被叫漫游号码。
5、 如权利要求 1或 2所述的方法， 其特征在于， 将所述主叫用户终端的接 入信息和被叫用户终端的接入信息添加到计费请求消息中具体包括： 扩展 AVP格式的所述计费请求消息的头域和 /或值域， 在所述扩展的计费 请求消息的头域和 /或值域中添加所述主叫用户终端的接入信息和被叫用户终 端的接入信息。
6、 一种应用服务器， 其特征在于， 包括：
第一获取单元， 用于接收呼叫请求消息， 储存所述呼叫请求消息中携带 的主叫用户终端的接入信息， 并将所述呼叫请求消息发送给被叫网络；
第二获取单元， 用于接收所述被叫网络返回的呼叫响应消息， 储存所述 呼叫响应消息中携带的被叫用户终端的接入信息；
第一话单生成单元， 用于将所述第一获取单元储存的主叫用户终端的接 入信息和所述第二获取单元储存的被叫用户终端的接入信息添加到计费请求 消息中， 发送给计费收集功能实体， 以便所述计费收集功能实体根据所述主 叫用户终端和被叫用户终端的接入信息生成计费话单。
7、 如权利要求 6所述的应用服务器， 其特征在于， 还包括：
第三获取单元， 用于接收主叫网络的移动接入网关控制功能实体， 或被 叫网络发送的用户切换通知消息， 储存所述切换通知消息中的主叫用户终端 或被叫用户终端当前所在接入小区的接入信息；
切换话单生成单元， 用于将所述第三获取单元储存的切换通知消息中主 叫用户终端或被叫用户终端当前所在接入小区的接入信息添加到计费请求消 息中， 发送给所述计费收集功能实体， 以便所述计费收集功能实体根据所述 主叫用户终端或被叫用户终端当前所在接入小区的接入信息， 生成切换计费 话单。
8、 一种网络设备， 其特征在于， 包括：
呼叫接收单元， 用于接收用户终端发送的呼叫请求消息；
接入信息获得单元， 用于根据所述呼叫请求消息中主叫用户终端的标识 信息获得主叫用户终端的接入信息；
呼叫发送生成单元， 用于将所述主叫用户终端添加到所述呼叫请求消息， 发送给应用服务器， 以便所述应用服务器向计费收集功能实体发起计费请求， 请求所述计费收集功能实体根据所述主叫用户终端和被叫用户终端的接入信 息生成计费话单。
9、 如权利要求 8所述的设备， 其特征在于， 还包括：
切换发送生成单元， 用于当主叫用户终端发生接入小区切换后， 发送用 户切换通知消息给所述应用服务器， 所述切换通知消息中包括主叫用户终端 当前所在接入小区的接入信息；
以便所述应用服务器向所述计费收集功能实体发起计费请求， 请求所述 计费收集功能实体根据所述主叫用户终端的接入信息生成切换计费话单。
10、 一种基于多媒体子系统的计费话单生成系统， 其特征在于， 包括： 应用服务器， 移动接入网关控制功能实体， 和计费收集功能实体；
所述移动接入网关控制功能实体， 用于接收用户终端发送的呼叫请求消 息， 根据所述呼叫请求消息中的主叫用户终端的标识信息获取主叫用户终端 的接入信息； 将所述主叫用户终端的接入信息添加到所述呼叫请求消息中， 发送给应用服务器；
所述应用服务器， 用于接收所述移动接入网关控制功能实体发送的呼叫 请求消息， 储存所述呼叫请求消息中携带的主叫用户终端的接入信息， 并将 所述呼叫请求消息发送给被叫网络； 接收所述被叫网络返回的呼叫响应消息， 储存所述呼叫响应消息中携带的被叫用户终端的接入信息； 将所述主叫用户 终端的接入信息和被叫用户终端的接入信息添加到计费请求消息中， 发送给 主叫网络的网络协议多媒体子系统中的计费收集功能实体；
所述计费收集功能实体， 用于根据所述主叫用户终端的接入信息和被叫 用户终端的接入信息， 生成计费话单。
11、 如权利要求 10所述的系统， 其特征在于，
所述应用服务器， 还用于接收所述移动接入网关控制功能实体， 或被叫 网络发送的用户切换通知消息， 所述切换通知消息中包括主叫用户终端或被 叫用户终端当前所在接入小区的接入信息； 将所述主叫用户终端或被叫用户 终端当前所在接入小区的接入信息添加到计费请求消息中， 发送给所述计费 收集功能实体；
所述计费收集功能实体， 还用于根据所述主叫用户终端或被叫用户终端 当前所在接入小区的接入信息， 生成切换计费话单。
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