WO2009052766A1 - Procédé de facturation de continuité de service multimédia, ancrage de signalisation de commande de session et entité de commande de passerelle multimédia - Google Patents

Procédé de facturation de continuité de service multimédia, ancrage de signalisation de commande de session et entité de commande de passerelle multimédia Download PDF

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Publication number
WO2009052766A1
WO2009052766A1 PCT/CN2008/072772 CN2008072772W WO2009052766A1 WO 2009052766 A1 WO2009052766 A1 WO 2009052766A1 CN 2008072772 W CN2008072772 W CN 2008072772W WO 2009052766 A1 WO2009052766 A1 WO 2009052766A1
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WIPO (PCT)
Prior art keywords
charging
request
session
user
access leg
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PCT/CN2008/072772
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English (en)
Chinese (zh)
Inventor
Zhaohui Zhang
Xiaoqiang Xie
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Huawei Technologies Co., Ltd.
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Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009052766A1 publication Critical patent/WO2009052766A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • 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
    • H04L12/1453—Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network
    • H04L12/1471—Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network splitting of costs
    • 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]

Definitions

  • the present invention relates to the field of multimedia service continuity technologies, and in particular, to a charging method for multimedia service continuity, a session control signaling plane anchor point, and a media gateway control entity.
  • Voice Call Continuity is a service provided by the Internet Multiedia Subsystem (IMS) network to which the user belongs. This service enables the user's voice call in the circuit domain (CS domain) and IMS. Two-way switching between networks. The converged IMS architecture enables seamless voice call services over the CS domain and IP-Connectivity Access Network (IP-CAN).
  • IMS Internet Multiedia Subsystem
  • the call continuity can be implemented by initiating a domain switching process.
  • a call initiated or received by a VCC user is anchored to a Domain Transfer Function (DTF) of the IMS network to which the user belongs.
  • DTF is an application server with B2BUA functionality.
  • the voice session control leg between the DTF and the VCC UE is called an access leg
  • the voice session control leg between the DTF and the remote user equipment is called a remote leg. Switching is the replacement of the old access leg in the cut-out network connected to the far leg using a new access leg cut into the network.
  • the bearer connection between the cut-out network and the cut-in network is replaced end-to-end.
  • the bearer connection is replaced between the VCC UE and the Medium Gateway (MGW).
  • MGW Medium Gateway
  • the VCC user equipment of the user When the VCC user equipment of the user detects that it needs to switch from the source network to the destination network, the VCC user equipment calls a special number on the destination network to establish a new access leg, that is, establishes a DTF in the cut-in network. A new voice session with the VCC user equipment, through which the DTF can be reached, and the DTF can determine that it is a domain handover request.
  • the VCC user equipment is used to renegotiate the media between the media information supported in the newly established call and the remote user equipment of the original call to redirect the target media component to the new access leg.
  • the call in the switching source network is released by the DTF or the VCC user equipment, that is, the old access leg is released, and the session between the original DTF and the VCC user equipment in the cut-out network is released. .
  • the user's voice call remains uninterrupted, improving the user's business experience.
  • multimedia service continuity With the evolution of 3GPP technology, the requirements for multimedia service continuity are also increasing. These requirements include moving multimedia sessions or media components on one terminal between different terminals under the control of users or networks, that is, multimedia. Switching of conversations or media components.
  • 3GPP an application scenario for providing multimedia call continuity has been discussed. The scope of the application scenario includes switching a multimedia session between networks of different access technologies, and placing certain media in a multimedia session under user control. The component, that is, the switching of the media component to a number of destination terminals or vice versa.
  • the embodiment of the invention provides a charging method for multimedia service continuity, a session control signaling plane anchor point and a media gateway control entity, which can solve the problem of implementing charging in the continuous multimedia service.
  • a charging method for multimedia service continuity comprising:
  • the charging control is performed, and the determined charging object is a source user or a destination user, and the new access leg is: between the session control signaling plane anchor point and the UE-T on the UE-S network side. Signaling connection.
  • a session control signaling plane anchor includes:
  • a receiving module configured to receive a handover request from the handover initiator, and transmit the received handover request to the charging control module, where the handover request includes information for switching the multimedia service from the UE-S to the UE-T;
  • the charging control module is configured to receive the handover request, determine a charging object, perform charging control according to the determined charging object, for a new access leg established in the multimedia service switching.
  • a media gateway control entity configured to set an interface between an IMS domain and a CS domain, where the media gateway control entity includes:
  • the receiving module receives charging related information related to the switched multimedia service from the IMS domain, and transmits the charging related information to the charging related information conversion module;
  • the charging related information conversion module converts the charging related information in the IMS domain format into the charging related information of the CS domain, and transmits the converted charging related information to the sending module;
  • the session control signaling plane anchor S-Anchor receives the handover request for switching the multimedia session or the media component to the destination end, and determines the handover request according to the handover request.
  • the fee object is the source or destination end, and corresponding to the charging control, thereby solving the problem of switching charging implementation in the continuous multimedia service.
  • FIG. 1 is a framework diagram of multimedia service continuity processing according to the present invention.
  • FIG. 2 is a flow chart of switching multimedia services in the framework of FIG. 1;
  • FIG. 3 is a schematic structural diagram of an embodiment of a session control signaling plane anchor point according to the present invention.
  • FIG. 3a is a schematic diagram of another composition of an embodiment of a session control signaling plane anchor point according to the present invention.
  • FIG. 3b is a schematic diagram of still another composition of an embodiment of a session control signaling plane anchor point according to the present invention.
  • FIG. 4 is a schematic structural diagram of an embodiment of a media gateway control entity according to the present invention.
  • FIG. 5 is a flowchart of a first embodiment of a charging method for a continuous multimedia service according to the present invention.
  • FIG. 6 is a flowchart of a second embodiment of a charging method for a continuous multimedia service according to the present invention.
  • Figure ⁇ is an exemplary flowchart of the charging end of the continuous multimedia service of the present invention in the CS domain;
  • FIG. 8 is a flowchart of a third embodiment of a charging method for a continuous multimedia service according to the present invention.
  • FIG. 9 is a flowchart of a fourth embodiment of a charging method for a continuous multimedia service according to the present invention.
  • FIG. 10 is a flowchart of a fifth embodiment of a charging method for a continuous multimedia service according to the present invention.
  • FIG. 11 is a flowchart of a sixth embodiment of a charging method for a continuous multimedia service according to the present invention.
  • the embodiment of the present invention focuses on the implementation of the charging scheme in the service continuity processing process in the multimedia session.
  • Figure 1 shows the framework of multimedia service continuity processing.
  • the solid line indicates the control plane connection
  • the broken line indicates the user plane connection.
  • the multimedia service continuity processing is implemented by using a handover, where the handover initiator may be a handover source (UE-S), a handover destination (UE-T), and a third party or network associated with the UE-S or the UE-T.
  • Switching Initiating Entity HOCF
  • the switching source end is an entity where the multimedia service is switched before; the switching destination end is a destination entity of the multimedia service switching.
  • a switching source belongs to a source user equipment, and a switching destination belongs to a destination user equipment.
  • the handover remote (UE-R) is the remote entity that communicates with the UE-S.
  • the switching source end user and the switching destination end user corresponding to the switching source end and the switching destination end may be identified by the IMS public user identifier in the IMS domain, and may be, but not limited to, embodied as a mobile user in the CS domain. International ISDN number (MSISDN).
  • the multimedia service switching includes at least one media component switch.
  • UE-S and UE-R perform service transmission of multimedia session on the user plane; on the signaling plane, UE-S signaling is anchored to its home S-Anchor, Expressed as S-Anchor (UE-S), the connection established between S-Anchor (UE-S) and UE-S is established between the old access leg and S-Anchor (UE-S) and UE-R. Connect as a distal leg.
  • S-Anchor UE-S
  • the session or media component on the UE-S is switched to the UE-T, so that the UE-T and the UE-R perform the service transmission of the multimedia session on the user plane; on the signaling plane, S-Anchor (UE-S)
  • the new leg is established in the handover between the S-Anchor (UE-T) and the UE-T to connect the remote leg for signaling transmission.
  • S-Anchor (UE-T) is the signaling plane anchor point of UE-T.
  • S-Anchor (UE-T) may not appear, and a new access leg is directly established between the UE and the UE-T, for example, at the destination end.
  • S-Anchor (UE-T) may not appear in the signaling plane if the user does not subscribe to the multimedia service continuity.
  • the S-Anchor can be represented as an Application Server (AS) in the IMS network.
  • AS Application Server
  • the above-mentioned switched multimedia service may be all the media components in the session (represented by the session S1), or may be part of the media components in the session (identified by the partial media component F1), and the partial media component F1 may be in the session.
  • a media component can also include several media components in a conversation.
  • the new access leg established in the foregoing handover is a signaling connection between the S-Anchor (UE-S) and the UE-T
  • the signaling connection is a session signaling connection that associates and controls all the media components in the new session; if the multimedia service cuts into an existing session, that is, the multimedia service is switched to a part of the media in the existing session.
  • the signaling connection is established in the session signaling connection of the existing session, and associates and controls the signaling connection of the cut-in new media component.
  • the UE-T and the UE-S may be the same terminal of the same user on the same network, different terminals of the same user on the same network, different terminals of different users on the same network, or different terminals on different networks.
  • the relationship between the third party that initiates the handover and the UE-S is similar to the relationship between the UE-T and the UE-S.
  • the same network may be a network of the same operator, such as an IMS network; the user refers to an individual, may be a person or an organization, etc.; the same user may be associated with an IMPU (Internet Protocol Multimedia Shared User Identity) in the IMS network. Associated with, may be associated with multiple IMPUs, or may be associated with both the IMPU of the IMS domain and the MSISDN of the CS domain; the terminal may be a single mode terminal or a multimode terminal, such as a wireless local area network (Wireless local area network) Local Area Network, WLAN) and 2G CS access mode terminals.
  • IMPU Internet Protocol Multimedia Shared User Identity
  • the UE-T and the UE-S may be an IMS terminal or a CS terminal.
  • the UE-R may also be a CS terminal or an IMS terminal. If it is a CS terminal, the signaling plane between the S-Anchor (UE-S) and the UE-R may have a Media Gateway Control Function (Media Gateway Control Function, MGCF) exists, and the user plane also has an MGW associated with the MGCF.
  • Media Gateway Control Function Media Gateway Control Function
  • S-Anchor (UE-S) and S-Anchor (UE-T) can be different entities or the same entity. If the two are the same entity, they can communicate through the internal interface, or share data, including user data of UE-S and UE-T. If they are different entities, use Session Initiated Protocol (SIP). Make interaction.
  • S-Anchor is written as S-A in Figure 1.
  • FIG. 2 shows a processing flow of multimedia service switching based on the framework shown in FIG. 1.
  • a session SI with the UE-R is established in the UE-S via the S-Anchor (UE-S) (in the SI).
  • UE-S S-Anchor
  • the media component F1 is included, the following steps are included:
  • Step 21 The handover initiator generates a multimedia service, which may be a session S1 (ie, all media components in S1) or a partial media component F1 in S1, and switches to a UE-T handover request, and the handover request is performed.
  • a multimedia service which may be a session S1 (ie, all media components in S1) or a partial media component F1 in S1, and switches to a UE-T handover request, and the handover request is performed.
  • the media component F1 may be one or more media components.
  • the handover initiator may be a UE-S, a UE-T, a HOCF, or a third-party user equipment.
  • Step 22 The S-Anchor (UE-S) performs service control according to the received handover request.
  • Step 23 The S-Anchor (UE-S) negotiates with the UE-T to establish a new access leg.
  • Step 24 The S-Anchor (UE-S) performs media negotiation with the UE-R to switch the media component F1 in the session S1 or S1 to the UE-T, so that the UE-T can perform the UE-R through the new access leg.
  • the media component F1 is copied to the UE-T such that the UE-S can continue to communicate with the UE-R.
  • the following is a charging scheme provided by the present invention, and a session control signaling plane anchor point for performing charging control involved in the charging scheme, The specific implementation of the media gateway control entity that performs the charging information conversion in the charging process is described in detail.
  • the IMS network is taken as an example for description, but the method described in the embodiment of the present invention is also applicable to the multimedia domain (Multimedia Domain, 3rd Generation Partnership Project 2, 3GPP2).
  • the MMD system is also applicable to IMS systems defined by Telecoms & Internet converged Services & Protocols for Advanced Networks (TISPAN).
  • TISPAN Telecoms & Internet converged Services & Protocols for Advanced Networks
  • the UE-S side network or the UE-T side network charging related entity not described in the following embodiments also performs the charging operation according to the charging method in the corresponding embodiment in the handover process.
  • the session control signaling plane anchor point for implementing the foregoing charging scheme provided by the embodiment of the present invention is as shown in FIG. 3, and includes a receiving module and a charging control module. among them:
  • the receiving module is configured to receive a handover request from the handover initiator to switch the multimedia service from the UE-S to the UE-T, and transmit the handover request to the charging control module.
  • the charging control module is configured to determine a charging object, and perform charging control according to the determined charging object for the new access leg established in the multimedia service switching.
  • the session control signaling plane anchor may further include: a policy acquisition module, where the module stores an operator policy or interacts with other devices on the network side to obtain an operator policy, and The stored or acquired carrier policy is sent to the charging control module; and the charging control module determines the charging object according to the transmitted operator policy.
  • a policy acquisition module where the module stores an operator policy or interacts with other devices on the network side to obtain an operator policy, and The stored or acquired carrier policy is sent to the charging control module; and the charging control module determines the charging object according to the transmitted operator policy.
  • the foregoing charging control module may include: a charging object determining module, a charging execution module, and a free execution module; wherein:
  • the charging object determining module receives the operator policy from the policy acquiring module, and determines the charging object according to the information in the operator policy and the switching request, that is, determining that the charging object is the switching source user or the switching destination user Then, the determined charging object is notified to the charging execution module and the free execution module.
  • the charging execution module interacts with the charging entity of the source user according to the received charging object as the notification of the source user, and charges the source user for the new access leg established in the multimedia service switching; For the destination user, how to deal with it)
  • the free execution module sends a free indication to the UE-T network side according to the received charging object as the notification of the source user, and interacts with the charging entity of the source user according to the received charging object as the notification of the destination user.
  • the source end user is controlled freely for the switched multimedia service, and the charging for the source end user on the old access leg is terminated.
  • the charging execution module interacts with the charging entity, and the charging of the multimedia service to the source user includes: the online charging system OCS of the charging execution module to the source user (UE-S) sends a Credit Control Request (CCR) for the new access leg, the credit control request may be embodied as a Reserve Unit Resquest, and the charging execution module responds according to the CCR.
  • OCS online charging system
  • UE-S the online charging system
  • CCR Credit Control Request
  • the credit control request may be embodied as a Reserve Unit Resquest
  • the charging execution module responds according to the CCR.
  • the source user performs credit control; and the free execution module interacts with the charging entity of the source user, and performs free control on the source user for the switched multimedia service, including: the charging execution module moves the leg to the OCS (UE- S) Sending a CCR including a free indication, the OCS (UE-S) not charging the source user for the new access leg according to the free indication in the CCR, or the free execution module sending a credit control request to the OCS (UE-S) After obtaining the charging related resources of the new access leg, returning the obtained charging related resources; or the free execution module does not interact with the OCS (UE-S) for the charging information of the new access leg, thereby On the new access leg of UE-S users free operation.
  • the charging execution module moves the leg to the OCS (UE- S) Sending a CCR including a free indication
  • the OCS (UE-S) not charging the source user for the new access leg according to the free indication in the CCR
  • the free execution module sending a credit control request to the OCS
  • the charging execution module interacts with the charging entity, and the charging of the multimedia service to the source user includes: the charging data function entity of the charging execution module to the source user
  • the CDF (UE-S) sends an Accounting Request (ACR), the ACR includes charging information related to the new access leg, and the CDF (UE-S) generates a CDR for the source user according to the ACR, and returns a response;
  • the free execution module interacts with the billing entity of the source user, and performs free control on the source user for the switched multimedia service.
  • the free execution module sends the ACR including the free indication to the CDF (UE-S) for the new access leg.
  • the CDF (UE-S) generates a CDR including a free indication according to the free indication in the ACR, thereby realizing that the source user is not charged for the new access leg.
  • FIG. 4 is a schematic structural diagram of a specific embodiment of a media gateway control entity according to an embodiment of the present invention.
  • the media network management entity shown in Figure 4 is set up at the connection point between the IMS domain and the CS domain as the gateway of the IMS domain and the CS domain.
  • the media gateway control entity includes: a receiving module, a charging related information conversion module, and a sending module. among them:
  • the receiving module is configured to receive charging related information related to the switched multimedia service from the IMS domain, and transmit the charging related information to the charging related information converting module.
  • the charging related information conversion module is configured to convert the charging related information in the IMS domain format into charging related information in the CS domain, and transmit the converted charging related information to the sending module.
  • the foregoing charging related information includes: a free indication, an associated charging identifier, or an initial direction of the switched multimedia service.
  • the initial direction of the switched multimedia service may be the initial setup direction of the switched session, such as whether the UE-S is a calling or a called party, or may be an initial initiated setup direction of the switched media component, such as whether the UE-S initiates establishment or The UE-R initiates the establishment.
  • the S-Anchor can be embodied as an application server in the IMS domain.
  • the N2C (Network to Client) mode is adopted, that is, the establishment of the new access leg at the destination end is an S-Anchor (the S-Anchor embodied in the IMS domain as an application server on the network side).
  • the UE-S is initiated, and the source user is an offline charging user.
  • the processing flow of this embodiment is as shown in FIG. 5, and specifically includes the following steps:
  • Step 51 The UE-S uses the S-Anchor (UE-S) to use the established session S1 with the UE-R through SIP signaling or via CS network signaling.
  • the S1 includes the media component F1, S-Anchor (UE).
  • -S) receiving a handover request from the handover initiator, requesting to switch the multimedia service, such as the entire media component of the session S1 or the partial media component F1 of the S1, to the UE-T, where the handover initiator may be the UE-S, the UE-T , a third-party user equipment or HOCF, and sent to the S-Anchor (UE-S) through SIP signaling or via CS network signaling.
  • the media component F1 in this step may include one media component, and may also include a plurality of media components.
  • the S-Anchor (UE-S) performs the switching control on the received handover request, and determines that the current user is only charged to the source user, and then determines that the charging type of the source user is the offline charging type.
  • step 53 the destination user free indication is set in the generated session establishment request (INVITE) for UE-T, and the session establishment request is sent, and the session establishment request is routed to the S-Anchor according to the IMS session establishment manner ( UE-T), thereby establishing a request through the session, to achieve free control of the new access leg to the destination end user.
  • the foregoing determines whether the handover is performed on the source or the destination, and may be determined according to the operator policy.
  • the specific charging object may be determined by combining the UE-S information and the UE-T information in the handover request, and the charging is performed. The object is determined to be the source user or the destination user in this switch.
  • the specific content of the operator policy may be that only the source end is charged, or may be combined with the content in the handover request, where the operator policy may be set in the S-Anchor (UE-S), or may be through other entities. Interacted by.
  • the operator policy determines the initiator as the charging object according to the initiator information included in the handover request or the combination of the initiator, the source, and the destination information.
  • the other embodiments described below determine the manner in which the charging object is the destination end or the second destination end, which is the same as in the embodiment, and will not be described below.
  • the destination end user can indicate that the SIP P-Charging-Vector header field is carried by the session initiation protocol, and can be carried by a new SIP header field or parameter. It can be extended by using the original header field or parameters, and can also be carried by the message content of the Session Description Protocol (SDP).
  • SDP Session Description Protocol
  • the S-Anchor performs handover control, including determining, according to the received session establishment request, that the request is a multimedia service handover request, that is, a new access leg establishment request, and providing a free indication according to the destination user. , Decided not to trigger online charging request for the online charging destination user.
  • step 55 the session establishment request is routed to the UE-T in accordance with the IMS session establishment mode.
  • the implementation does not charge the destination user.
  • the online user does not trigger the online charging request, but the following two methods are also available:
  • the first type is that the S-Anchor (UE-T) includes the free information of the destination user's free indication in the CCR request sent to the OCS (UE-T) according to the free indication of the destination user, and the OCS (UE-T) According to the related information, the corresponding record is generated according to the online charging policy, but the balance of the destination user account is not actually deducted.
  • the second type is that the S-Anchor (UE-T) obtains the charging related resources from the OCS (UE-T) according to the normal processing mode according to the free instruction of the destination end user.
  • the S-Anchor (UE-T) The charging related resources obtained by the OCS (UE-T) are returned to the OCS, so that the destination end user is not charged.
  • Steps 56-58 After the intermediate negotiation process between the S-Anchor (UE-S) and the UE-T, the UE-T sends the 200 OK sent to the S-Anchor (UE-S) through the S-Anchor (UE-T). ) Send to S-Anchor (UE-S) to complete the establishment of the new access leg.
  • Steps 59-512 S-Anchor (UE-S) sends an Accounting Request (ACR) to the CDF (UE-S), requesting to start charging for the new access leg; Charging Data Function , CDF) (UE-S) Generates the corresponding CDR according to the received request, and charges for the new access leg.
  • S-Anchor (UE-S) sends an ACR request related to the old access leg and the far leg to the CDF (UE-S) respectively, indicating that the charging of the old access leg or the cut-out media component is stopped and updated.
  • the CDF (UE-S) updates the corresponding Charging Data Record (CDR) according to the indication. If the old access leg stops charging, the ACR stops the charging request, and the other uses the update charging request.
  • the S-Anchor UE-S
  • the S-Anchor can only send an ACR update charging request to the CDF (UE-S). Instructing to stop charging the old access leg or cutting out the media component and updating the charging of the far leg, and charging the new access leg.
  • step 512 processing of other processes of switching is performed.
  • the source user billing system In the process of being switched to the session S1 or the media component F1 being switched to the UE-T, and being switched to the UE-T During the entire period of existence, the source user billing system generates and maintains a complete billing history record, thereby enabling billing of the new access leg to the source end user.
  • the charging process may be further performed on the handover event, which is implemented as follows:
  • the S-Anchor UE-S
  • the party sends a handover response and simultaneously sends an ACR charging request to the CDF (UE-S), the request may be an event type, and the CDF (UE-S) charges the handover event according to the ACR charging request, and generates a corresponding CDR.
  • the billing process can be performed on the switching event.
  • the specific implementation is the same as that in this embodiment, and details are not described herein.
  • the above process takes the example that the source user is an offline charging user in step 52, and performs the charging control of the source user. If it is determined in step 52 that the source user is an online charging user, The switched session or media component sends a CCR request to the source user's OCS (UE-S) to obtain available charging related resources, thereby controlling the OCS (UE-S) to charge the source user.
  • a CCR request to the OCS it may include information for starting charging for the new access leg, information for stopping charging of the old access leg or the cut-out media component, and charging for remote leg update.
  • the information about the start of charging for the new access leg may be included, and the S-Anchor (UE-S) further sends the message to the OCS (UE-S).
  • the S-Anchor (UE-S) further sends the message to the OCS (UE-S).
  • OCS UE-S
  • CCR requesting to stop charging for the old access leg or cut-out media component and CCR including requesting to update the far-end leg charging then OCS (UE-S) can update the new access leg while starting to update Billing for the far leg and stopping charging for the old access leg or cut out media components.
  • the S-Anchor (UE-S) may update the obtained available charging related resources to the OCS (UE-S), and cooperate with the UE-R and the UE.
  • the S-Anchor (UE-S) may update the obtained available charging related resources to the OCS (UE-S), and cooperate with the UE-R and the UE.
  • the OCS (UE-S) may interact with the OCS (UE-S) to control the OCS (UE-S) to stop the old access leg or cut out the media component to charge the source user, and update the remote leg to the source user. Billing.
  • the S-Anchor may send a CCR Accounting Request to the OCS (UE-S) to charge the handover event.
  • the source user is an online charging user, as in the embodiment, the source user can be charged for the switching event, and the implementation is the same as that in the embodiment, and details are not described herein.
  • UE-S is the calling or called
  • UE-R initial originating direction of the switched media
  • UE-S S-Anchor
  • the identifier of the charging in the initial setup direction or the initial initiation direction may be set in the sent ACR or CCR.
  • the ACR or the CCR sent by the S-Anchor (UE-S) may include charging association information, where the charging association information may be a special charging identifier, for example, Service Specific Data or Service- in the CCR request.
  • the Context-Id is carried in the AVP; the special charging identifier is also included in the corresponding charging record generated by the CDF (UE-S) or OCS (UE-S).
  • the charging association information may also be the charging session related to the new, old, and remote legs (Diameter). Session ID of the Accounting Session).
  • S-Anchor (UE-S) and S-Anchor (UE-T) may be in different entities or in the same entity.
  • the two can communicate through the internal interface, and can also share data, including user data sharing UE-S and UE-T.
  • the processing flow of the second embodiment of the method provided by the embodiment of the present invention is as shown in FIG. 6, and the UE-S passes the S-Anchor (UE-S).
  • the session SI with the UE-R has been established using SIP signaling or by CS network signaling, and the media component F1 is included in S1. Thereafter, the method includes the following steps:
  • Steps 61-62 The UE-T initiates a handover request in a session establishment manner according to the user indication, the preset policy, or the handover request of the UE-S, the third party, or the HOCF, and requests to switch S1 or F1 to the UE-T.
  • the request arrives at the S-Anchor (UE-T) along the session establishment path, and the S-Anchor (UE-T) performs related service control, including signaling anchoring.
  • Steps 63-64 S-Anchor (UE-T) routes the handover request to the S-Anchor (UE-S) according to the IMS session establishment mode, and sends the CCR to the OCS (UE-T) of the destination user, and the OCS ( UE-T) performs charging interaction.
  • S-Anchor UE-T
  • UE-S S-Anchor
  • OCS OCS
  • Steps 65-67 After receiving the handover request, the S-Anchor (UE-S) performs handover control to determine that the charging object is the source user, and then sends an OCS (UE-S) to start charging for the new access leg.
  • the CCR, OCS (UE-S) performs credit control on the source user according to the request, and returns available billing related resources.
  • the above CCR results in the establishment of a charging session to bill the new access leg established by the handover.
  • the S-Anchor (UE-S) also sends a CCR request related to the old access leg and the far leg to the OCS (UE-S), indicating that the charging of the old access leg or the cut-out media component is stopped. Update the billing for the far leg. If the old access leg stops charging, the CCR is used to stop the charging request, and the other uses the update charging request.
  • the S-Anchor (UE-S) can only send one CCR update bill to the OCS (UE-S) if the same billing session is associated with the new, old and far legs.
  • the request indicates to stop charging the old access leg or the cut-out media, update the charging of the remote leg, and charge the new access leg.
  • the CCR sent by the S-Anchor may include charging association information, and the charging association information may be a special charging identifier, for example, may be in a CCR request.
  • the service-specific data or Service-Context-Id AVP carries the special charging identifier in the corresponding charging record generated by the Baye lj OCS (UE-S); the same charging is used in the new, old and remote legs.
  • the billing association information may also be the session ID of the dialing accounting session (Diameter Accounting Session) associated with the new, old, and remote legs.
  • the intermediate process of the handover performed in step 68 includes: negotiation with the UE-R, negotiation with the UE-S when processing the source end, optionally, in steps 69-611, similar to steps 65-67, S -Anchor (UE-S) sends a CCR request to the OCS (UE-S), updates the available charging related resources, and OCS (UE-S) performs corresponding credit control.
  • S -Anchor UE-S
  • OCS UE-S
  • UE-S performs corresponding credit control.
  • the S-Anchor (UE-S) returns the 200 OK session establishment success response to the S-Anchor (UE-T) according to the IMS session establishment mode, and the response includes a free indication of the destination user.
  • the destination user free indication may also be in the handover intermediate process of step 68, for example, the 183 session in progress response is transmitted by the S-Anchor (UE-S) to the UE-T side network.
  • the S-Anchor (UE-T) decides not to charge the destination user according to the received free instruction of the destination user, and sends a CCR with a free indication to the OCS (UE-T) in step 614.
  • the request so that the OCS (UE-T) sets a corresponding free indication in the generated charging record according to the free indication in the received CCR request, so that the destination end user is not charged; or, the free indication is not sent.
  • the CCR but in step 614, returns the charging related resources acquired from the OCS (UE-T) in step 64 to the OCS (UE-T), thereby implementing free processing for the destination user.
  • Step 615 The process of sending the 200 OK to the UE-T according to the IMS session establishment manner, and then performing the handover, includes the notification of the handover result of the handover source UE-S and the handover initiator.
  • the S-Anchor UE-T
  • the S-Anchor sends a free indication to the CDF of the destination user according to the received free instruction of the destination user after step 13.
  • the billing request is such that the CDF of the destination user includes the relevant information of the free indication in the generated CDR, so that the destination user is not charged.
  • the S-Anchor (UE-S) sends a charging request (ACR) to the CDF (UE-S), requesting a new access leg,
  • ACR charging request
  • the CDF (UE-S) generates a corresponding CDR according to the received request, and charges the switched multimedia session or media component.
  • S-Anchor (UE-S) sends an ACR request related to the old access leg and the far leg to the CDF (UE-S), respectively, instructing to stop charging and updating the old access leg or the cut-out media component.
  • the billing of the leg, CDF (UE-S) updates the corresponding billing data record according to the indication.
  • the S-Anchor may only send an ACR update charging request to the CDF (UE-S). Instruct to stop charging the old access leg or cut-out media and update the billing of the far-end leg, as well as billing the new access leg. At this point, the online billing processing in steps 5-7 and 9-11 can no longer be performed.
  • the UE-S and the UE-T are different modes of the same terminal, different terminals of the shared IP Multimedia Subsystem Public User Identity (Share IMPU), and different users of the same user.
  • the data of the two users of the UE-S and the UE-T may be shared, or the S-Anchor (UE-S) and the S-Anchor (UE-T) may be the same entity, and the guest lj S-Anchor (UE- S) and S-Anchor (UE-T) can interact through the internal interface.
  • the above first embodiment and the second embodiment are both for initial handover, that is, when the session or media component is switched from UE-S to UE-T, in the third embodiment, switching from UE-S for session or media component After UE-T, it is switched from UE-T to UE-T2 again.
  • the UE-S establishes a session S1 with the UE-R through S-Anchor (UE-S) using SIP signaling or via CS network signaling, and the media component F1 included in S1 or S1 has been switched.
  • the embodiment includes the following steps: Step 71: The S-Anchor (UE-T) receives the handover request of the handover initiator, and requests to cut in the cut session or media.
  • UE-T2 where the handover initiator may be UE-S, UE-T, third party or HOCF or UE-T2, and sent to S-Anchor (UE-T) through SIP signaling or via CS network signaling.
  • UE-T S-Anchor
  • Step 72 The S-Anchor (UE-T) performs handover control on the received handover request, and determines that the UE-T2 user is free during the existence of the entire switched session or media component according to the free indication obtained during the initial handover. Generate a free indication for the UE-T2 user.
  • UE-T The S-Anchor
  • the S-Anchor (UE-T) performs the free operation of the destination user according to the S-Anchor (UE-T) charging mode at the initial handover.
  • Steps 73-74 The S-Anchor (UE-T) generates a session establishment request that uses the terminal identifier or the user identifier of the UE-T2 as the request URI, and includes the generated UE-T2 user free indication, and the request is established according to the IMS session manner. After the service is controlled by the S-Anchor (UE-T2) and the S-Anchor (UE-T2), the UE-T2 user is free to trigger the online charging for the online charging UE-T2 user according to the free indication of the UE-T2 user.
  • UE-T2 After the service is controlled by the S-Anchor (UE-T2) and the S-Anchor (UE-T2), the UE-T2 user is free to trigger the online charging for the online charging UE-T2 user according to the free indication of the UE-T2 user.
  • Steps 75-78 the S-Anchor (UE-T2) routes the session establishment request to the UE-T2 according to the IMS session establishment mode, and after the intermediate process of the handover, the UE-T2 sends the session success establishment response 200 OK to the S-Anchor. (UE-T).
  • Steps 79-713 S-Anchor (UE-T) sends a RelNVITE request (also UPDATE) to the UE-R to reach the S-Anchor (UE-S), S-Anchor (UE-S) sends a CCR request to OCS (UE-S) after performing service control, and OCS (UE-S) performs credit control according to the received request, and returns the corresponding response. , the response contains the resources available.
  • UE-T sends a RelNVITE request (also UPDATE) to the UE-R to reach the S-Anchor (UE-S)
  • S-Anchor (UE-S) sends a CCR request to OCS (UE-S) after performing service control
  • OCS (UE-S) performs credit control according to the received request, and returns the corresponding response.
  • the response contains the resources available.
  • the CCR may be sent in the same charging session associated with the new, old and remote legs, and the S-Anchor (UE-S) sends a CCR update charging request to the OCS (UE-S), indicating that the new connection is updated. Billing for legs and distal legs.
  • UE-S S-Anchor
  • OCS OCS
  • CCR can also be associated with the access leg between S-Anchor (UE-S) and S-Anchor (UE-T).
  • the S-Anchor (UE-S) additionally sends a CCR request related to the far leg to the OCS (UE-S), indicating that the charging of the far leg is updated.
  • Steps 714-721 S-Anchor (UE-S) sends the RelNVITE request along the signaling path to the UE-R, and the UE-R returns a 200 OK response to the S-Anchor (UE-S), optionally, S-Anchor (UE-S) sends a CCR request to the OCS (UE-S) to update the available charging related resources according to the procedure of messages 79-713, and the OCS (UE-S) performs credit control according to the received request and returns a corresponding response. , the response contains the resources available.
  • other processes for performing handover include the negotiation with the UE-T during the processing of the source end and the notification of the handover result of the handover source UE-T and the handover initiator.
  • the source user billing system generates and maintains a complete billing history during the process in which the switched session or media switches to the UE-T2 due to the handover of the new access leg and the entire period after being switched to the UE-T2 recording.
  • UE-T and UE-T2 are used as IMS terminals as an example for description.
  • UE-T, UE-T2 are CS terminals, S-Anchor (UE-S) and UE-T, or S-Anchor (UE-T) and UE-T2 establish new access legs
  • the MGCF that serves as the interface between the IMS domain and the CS domain in the signaling path established by the access leg can be used for the destination user or UE-T2 user from S-Anchor (UE-S) or S-Anchor (UE-T).
  • the free indication is converted to the corresponding free indication of the CS domain, and is transmitted to the CS domain.
  • the destination end user or the CS domain charging initiation entity of the UE-T2 user such as the VMSC or the SCP, interacts with the charging entity, and performs the destination according to the indication.
  • the user or the UE-T2 user operates for free, and the related information of the CS domain destination end user or the UE-T2 user free indication is included in the charging record generated by the charging entity.
  • the charging initiator of the CS domain can perform online charging for the destination user or the UE-T2 user according to the free indication of the CS domain.
  • the charging initiating entity here refers to an entity that initiates an accounting request to the online charging system, similar to the foregoing S-Anchor.
  • the S-Anchor that sends the charging request to the charging system also belongs to the charging initiating entity.
  • the destination user of the CS domain or the user of the UE-T2 is free of charge. It can be a special number or a special indication. For example, the prefix or suffix is added to the calling number or the called number, or it can be a special service number.
  • the free control of the destination user of the CS domain is taken as an example, and the charging process including the processing of the charging related information by the MGCF is described.
  • the process specifically includes the following steps:
  • Step 81 The UE-S establishes a session S1 with the UE-R through S-Anchor (UE-S) using SIP signaling or via CS network signaling, and the media component F1 is included in the S1 and is in the S-Anchor (UE- S) is anchored, and the S-Anchor (UE-S) receives the handover initiator's handover request, requesting to switch S1 or F1 to UE-T.
  • S-S S-Anchor
  • Steps 82-83, S-AnchorOJE-S) perform switching control on the received handover request, and detect that the source user is an offline charging user, and determine that the current switching only charges the source user, so the destination user is generated. Free instructions.
  • the session establishment request with the UE-T terminal identifier (or user identifier) as the request URI includes a free indication of the destination user, and the session establishment request is routed to the MGCF according to the session establishment manner when the IMS communicates with the CS.
  • Step 84 The MGCF converts the user to the free user of the CS domain according to the free instruction of the destination user, the CS domain.
  • the indication may be a special number or a special indication, such as prefixing or suffixing the calling number or the called number; or using a special service number to indicate that the destination user of the CS domain is free, etc., and is sent to serve the destination end user. This indication is included in the initial address message (IAM) of the CS network.
  • IAM initial address message
  • Steps 85-86 the CS network performs free processing on the destination end user according to the free indication in the IAM.
  • Steps 87-811 the CS network routes the setup message to the UE-T (CS), and the UE-T will connect after the intermediate negotiation process between the S-Anchor (UE-S) and the UE-T (CS).
  • the message (connect) is routed to the CS network, and the CS network is converted to an answer message (ANM) and sent to the MGCF, which then converts to a 200 OK route to the S-Anchor (UE-S).
  • Steps 812-814 S-Anchor (UE-S) sends an ACR start charging request to the CDF (UE-S), and the CDF (UE-S) generates a corresponding CDR according to the received request.
  • the CDF (UE-S) respectively sends an ACR request related to the old access leg and the far leg, indicating that the charging of the old access leg or the cut-out media is stopped and the charging of the remote leg is updated;
  • the old access leg stops charging, uses the ACR to stop the charging request, and the other uses the update charging request.
  • the S-Anchor UE-S
  • the CDF UE-S
  • Step 815 The processing of the other processes of the handover, including the negotiation with the UE-R, the negotiation with the UE-S when processing the source, and the notification of the handover result of the handover source UE-S and the handover initiator.
  • the S-AnchorOJE-S can perform charging according to the direction according to the initial setup direction of the handover session (UE-S is the calling or called) or the initial originating direction of the switched media.
  • the destination user or the UE-T2 user is described as an online charging user. If the destination user or the UE-T2 user is an offline charging user, the UE-T or the UE- The T2 side network entity may carry the destination end user in the ACR request sent to the CDF (UE-T) or the CDF (UE-T2) according to the session establishment request or the free end indication of the UE-T2 user in the session establishment response. Or related information that is freely indicated by the UE-T2 user, thereby including information about the free indication in the CDR generated by the CDF (UE-T) or CDF (UE-T2). The information about the free end of the user or the UE-T2 user can be carried in the Service Specific Data or Service-Context-Id AVP in the ACR request.
  • the free indication carried in the session establishment request or the response may be carried by the SIP P-Charging-Vector header field, or may be carried by newly defining a SIP header field or parameter, or may use the original header field or
  • the parameters are extended and carried, or can be carried by the message content of the SDP.
  • the flow of the fourth embodiment of the method provided by the embodiment of the present invention is as shown in FIG. 9.
  • the UE-S is established with the UE-S through S-Anchor (UE-S) using SIP signaling or via CS network signaling.
  • the session S1, S1 contains the media component F1, and thereafter, includes the following steps:
  • Step 91 The S-Anchor (UE-S) receives the handover request of the handover initiator, and requests to switch S1 or F1 to the UE-T, where the handover initiator may be a UE-S, a UE-T, a third party, or a HOCF. And sent to S-Anchor (UE-S) through SIP signaling or via CS network signaling.
  • UE-S receives the handover request of the handover initiator, and requests to switch S1 or F1 to the UE-T, where the handover initiator may be a UE-S, a UE-T, a third party, or a HOCF.
  • S-Anchor UE-S
  • Steps 92-93 S-Anchor (UE-S) performs switching control on the received handover request, and determines that the new access leg is only to the destination end.
  • the user charges, and generates a session establishment request with the UE-T terminal identifier or the user identifier as the request URI, and the request is routed to the S-Anchor (UE-T) according to the IMS session establishment manner.
  • Steps 94-97 S-Anchor (UE-T) determines that the received session establishment request is to establish a new access leg request for the switched multimedia service, and after performing service control, for the new access leg to the OCS (UE-T)
  • the CCR request is sent, the OCS (UE-T) performs credit control and returns a corresponding response, which contains the available resources.
  • step 98-910 the S-Anchor (UE-T) routes the session establishment request to the UE-T according to the IMS session establishment mode, and the intermediate negotiation process between the S-Anchor (UE-S) and the UE-T, UE-T T will establish a successful session response to the S-Anchor (UE-S).
  • 200 OK is routed to the S-Anchor (UE-T) according to the IMS session establishment mode, completing the S-Anchor (UE-S) and UE-T. The establishment of a new access leg.
  • Steps 911-914 S-Anchor (UE-T) sends a CCR request to the OCS (UE-T) to update the available resources, OCS (UE-T) performs credit control and returns a corresponding response, and the response includes available resources.
  • the S-Anchor (UE-T) forwards the 200 OK to the S-Anchor (UE-S), and through these steps, realizes online charging for the new access leg to the destination end user.
  • Steps 915-918 S-Anchor (UE-S) send an ACR request to the CDF (UE-S), the ACR request includes a free indication for the new access leg, and the CDF (UE-S) generates a corresponding response according to the received request.
  • the CDR containing the free indication related information, CDF (UE-S) returns the response of the ACR request.
  • the A-Cursing billing request sent by the S-Anchor (UE-S) to the CDF (UE-S) further indicates the stop. Billing the old access leg or cut-out media and updating the billing of the far leg, and freeing the new access leg.
  • the method for implementing the new access leg to the source user is free, and the ACR causes a charging session to be established, and the CDF (UE-S) generates a corresponding CDR that includes the information related to the free indication according to the received request. . And when renegotiating with the UE-R and negotiating with the UE-S when processing the source, the S-Anchor (UE-S) sends the CDF (UE-S) to the old access leg and the remote leg respectively.
  • the ACR request indicates to stop charging the old access leg or the cut-out media and update the charging of the remote leg; wherein if the old access leg stops charging, the ACR is used to stop the charging request, and the other uses the update charging. request.
  • the source user is an offline charging user.
  • the S-Anchor UE-S
  • the OCS UE-S
  • OCS performs free operation of the source user according to this information; or, C-CCR request sent by S-Anchor (UE-S) to OCS (UE-S), OCS (UE-S) performs normal credit control , S-Anchor (UE-S) returns all requested resources to OCS (UE-S) at the end of communication; or, S-Anchor (UE-S) does not interact with OCS (UE-S) for new access legs
  • the free operation is performed on the source user. At this time, the offline charging processing in steps 915-918 can be no longer performed.
  • the CCR sent by the S-Anchor (UE-S) to the OCS (UE-S) also includes an indication to stop the old access. Legs or cut out media for billing information and updated remote leg billing information, as well as free information on new access legs. If the new, old, and remote legs are not associated with the same charging session, the CCR causes a charging session to be established, and the OCS (UE-S) generates the containing user for the new access leg based on the received request. The billing record for the free indication.
  • the S-Anchor (UE-S) sends the OCS (UE-S) separately to the old access leg and the far leg.
  • the CCR request indicating to stop charging the old access leg or the cut-out media and update the charging of the remote leg; wherein if the old access leg stops charging, the CCR is used to stop the charging request, and other uses the update.
  • Billing request When three charging sessions are associated with the new, old, and remote legs, the S-Anchor (UE-S) detects that only the destination user is charged and the source user is an online charging user. For the new access leg to handle this:
  • S-Anchor (UE-S) sends a CCR request to OCS (UE-S), OCS (UE-S) performs normal credit control, and S-Anchor (UE-S) will apply when the new access leg is released.
  • the resources are all returned to the OCS (UE-S), which is free for the new access leg to the source user; or, S-Anchor (UE-S) does not exchange information with the OCS (UE-S) for the new access leg. Interaction, so that the new access leg can be operated freely for the source user.
  • the processing of other procedures for handover includes notification of the handover result of the handover source UE-S and the handover initiator.
  • the destination user billing system generates and maintains a complete billing history during the session in which the switched session or media is handed over to UE-T, and throughout the period after being switched to UE-T.
  • the ACR or the CCR sent by the S-Anchor may include an associated charging identifier, which may be a globally unique identifier or a local identifier, and the CDF (UE-S) or OCS.
  • the generated charging record includes the associated charging identifier, and the new access leg, the old access leg, and the remote leg can be associated with the charging records of the source user by using the identifier.
  • the S-Anchor may also include the associated charging identifier in the session establishment request or response sent to the UE-T network side, and pass the UE- The interaction between the T-side charging initiator and the CDF (UE-T) or OCS (UE-T), so that the CD-F (UE-T) or OCS (UE-T) on the UE-T side is the billing generated by the destination user.
  • the associated charging identifier is also included in the record, and the CDF (UE-T) or OCS (UE-T) includes the identity in the charging record generated for the destination user throughout the life of the switched session or media component. relevant information. Therefore, through the above-mentioned associated charging identifier, all related charging records in the different charging systems for the switched multimedia service can be associated.
  • the S-Anchor may also include the initial setup direction of the handover or the initial initiation direction of the media component in the session establishment request or response sent to the UE-T network side, UE-T
  • the charging initiator of the network side may include the initial direction of the switched session or media component in the charging request sent to the CDF (UE-T) or OCS (UE-T), thereby CDF (UE-T) or OCS (UE-T)
  • the new access leg can be charged according to the initial direction.
  • the associated charging identifier carried in the session establishment request or the response, the initial setup direction, or the initial originating direction before the switched media component is switched may be carried by the SIP P-Charging-Vector header field, or may be newly defined.
  • a SIP header field or parameter carries, and can also be extended by using the original header field or parameters, or can be carried by the message content of the SDP.
  • the flow of the fifth embodiment of the method provided by the embodiment of the present invention is as shown in FIG. 10, and the UE-S has been established with the UE-S through S-Anchor (UE-S) using SIP signaling or via CS network signaling.
  • the session S1, S1 contains the media component F1, and thereafter, includes the following steps:
  • Steps 101-105 The UE-T initiates a handover request in a session establishment manner according to the user indication, the preset policy, or the handover request of the UE-S, the third party, or the HOCF, requesting to switch the S1 or F1 to the UE- T.
  • the request arrives at the S-Anchor (UE-T) along the session establishment path, the S-Anchor (UE-T) performs related service control, sends a CCR request to the OCS (UE-T), and the OCS (UE-T) performs credit control.
  • the corresponding response is returned, and the response contains the available billing related resources.
  • the S-Anchor (UE-T) sends a session establishment request to establish a new access leg, which is routed to the S-Anchor (UE-S) in accordance with the IMS session establishment mode.
  • the S-Anchor (UE-S) performs handover control according to the received session establishment request, and determines that the charging object is the destination user, and the S-Anchor (UE-S) sends the CCR to the OCS (UE-S).
  • Request the request contains information indicating a free indication of the new access leg, and the OCS (UE-S) performs a free operation of the source user according to the information, and returns a corresponding response.
  • the C-CCR sent by the S-Anchor (UE-S) to the OCS (UE-S) also includes the indication to stop the old access. Legs or cut out media for billing information and updated remote leg billing information, as well as free information on new access legs.
  • the CCR causes a charging session to be established, and the OCS (UE-S) generates the containing user for the new access leg according to the received request.
  • the billing record for the free indication.
  • the S-Anchor (UE-S) sends the OCS (UE-S) separately to the old access leg and the far leg.
  • the CCR request indicating to stop charging the old access leg or the cut-out media and update the charging of the remote leg; wherein if the old access leg stops charging, the CCR is used to stop the charging request, and the other uses the update meter.
  • Fee request; or for new access legs, S-Anchor (UE-S) does not send CCR to OCS (UE-S), which is free.
  • steps 108-1010 when three charging sessions are associated with the new, old, and remote legs, the S-Anchor (UE-S) detects that only the destination user is charged and the source user is online. When the user is also available, this is handled for the new access leg:
  • S-Anchor (UE-S) sends a CCR request to OCS (UE-S), OCS (UE-S) performs normal credit control, S-Anchor
  • UE-S When the new access leg is released, the requested resources are all returned to the OCS (UE-S), so that the new access leg is free to the source user; or, S-Anchor (UE-S) does not Interact with the OCS (UE-S) for the new access leg for billing information, so as to implement free operation for the new end leg to the source user.
  • OCS OCS
  • UE-S S-Anchor
  • the S-Anchor (UE-S) sends a CCR request to the OCS (UE-S), optionally in accordance with a similar procedure in steps 107-1010.
  • the S-Anchor (UE-S) sends a session success setup response 200 OK request to the UE-T to reach the S-Anchor (UE-T), and the S-Anchor (UE-T) performs related service control,
  • a CCR request is sent to the OCS (UE-T), and the OCS (UE-T) performs a credit control and returns a corresponding response, and the response includes available charging related resources.
  • the S-Anchor (UE-T) routes the 200 OK to the UE-T in accordance with the IMS session setup mode.
  • the processing of the other processes of the handover includes the negotiation with the UE-R, the negotiation with the UE-S when processing the source end, and the notification of the handover result of the handover source UE-S and the handover initiator.
  • the destination user billing system generates and maintains a complete billing history record during the transition of the switched session or media to the UE-T, and throughout the period after being switched to the UE-T.
  • the above example uses the source user as the online charging user as an example to illustrate how to implement the source user free of charge.
  • the S-Anchor (UE-S) sends an ACR request to the CDF (UE-S), where the request includes free information of the source user.
  • the CDF (UE-S) generates a corresponding CDR containing the information related to the free indication according to the received request, and the CDF (UE-S) returns a response of the ACR request.
  • the A-Cursing the charging request sent by the S-Anchor (UE-S) to the CDF (UE-S) further indicates the stop.
  • the manner in which the new access leg is free to the source user may also be that the ACR causes a charging session to be established, and the CDF (UE-S) is based on the received request. Generating a corresponding CDR containing the free indication related information.
  • the S-Anchor sends the CDF (UE-S) to the old access leg and the remote leg respectively.
  • the ACR request indicates to stop charging the old access leg or the cut-out media and update the charging of the remote leg; wherein if the old access leg stops charging, the ACR stops the charging request, and the other uses the update charging. request.
  • the processing of online charging in steps 108-1010 and 1012-1014 can be no longer performed.
  • the destination user is an online charging user as an example.
  • the UE-T side network entity may send an ACR request to the CDF (UE-T) and send the CDF (in the CDF (UE-T) when receiving the new access leg successfully establishing the response 200 OK ( A corresponding CDR is generated at the UE-T), and charging control is performed on the destination user.
  • the UE-T is used as an IMS terminal as an example for description.
  • the MGCF may transmit the S-Anchor (UE-S) to the UE-T.
  • the initial establishment direction and/or initial initiation direction of the side network and the associated charging identifier are converted into CS domain corresponding indications and transmitted to the CS domain, and the CS domain charging initiation entity of the destination end user, such as a VMSC or SCP, and the CS domain.
  • the charging system interacts, and performs charging on the destination end user according to the information, and includes the associated charging identifier in the generated charging record.
  • the indication corresponding to the associated charging identifier in the CS domain may be a special number or a special indication, for example, prefix or suffix in the calling number or the called number, or may be a special service number.
  • the flow of the sixth embodiment of the method provided by the embodiment of the present invention is as shown in FIG. 11.
  • the UE-S establishes a UE-R through S-Anchor (UE-S) using SIP signaling or via CS network signaling.
  • the media component F1 included in the session S1, S1 or S1 has been switched to the UE-T.
  • the embodiment includes the following steps:
  • Step 111 The S-Anchor (UE-T) receives the handover request of the handover initiator, and requests to cut the cut session or media into the session.
  • UE-T The S-Anchor
  • UE-T2 where the handover initiator may be UE-T, third party or HOCF or UE-T2, and sent to S-Anchor (UE-T) through SIP signaling or via CS network signaling.
  • UE-T S-Anchor
  • Step 112 The S-Anchor (UE-T) performs handover control on the received handover request, and determines that only the UE-T2 user is charged according to the charging policy, and the S-Anchor (UE-T) follows the initial handover.
  • -Anchor (UE-S) billing mode performs free operations for the destination user.
  • the S-Anchor (UE-T) generates a session establishment request with the UE-T2 terminal identifier or the user identifier as the request URI, and the session establishment request is routed to the S-Anchor according to the IMS session establishment manner (UE- T2), S-Anchor (UE-T2) performs service control according to the request, and after determining that the UE-T2 user is an online charging user, sends a CCR request to the OCS (UE-T2), OCS (UE-T2) Perform credit control and return a response with the resources available.
  • UE-T2 the S-Anchor (UE-T) generates a session establishment request with the UE-T2 terminal identifier or the user identifier as the request URI, and the session establishment request is routed to the S-Anchor according to the IMS session establishment manner (UE- T2), S-Anchor (UE-T2) performs service control according to the request, and after determining that the UE-T2 user is an
  • the S-Anchor (UE-T2) routes the session establishment request to the UE-T2 according to the IMS session establishment mode, and the intermediate negotiation process between the S-Anchor (UE-T) and the UE-T, the UE -T2 routes the 200 OK sent to the S-Anchor (UE-S) to the S-Anchor (UE-T2) in accordance with the IMS session establishment mode.
  • the S-Anchor (UE-T2) After receiving the session establishment success response 200 OK in step 1111-1114, the S-Anchor (UE-T2) optionally sends a CCR request to the OCS UE-T2, and the OCS (UE-T2) performs credit control and returns corresponding In response, the response contains the available resources, and the S-Anchor (UE-T2) routes the session establishment success response to the S-Anchor (UE-T) according to the IMS session establishment mode.
  • the processing of the other processes for performing handover in steps 1115-1127 and S-Anchor (UE-T) includes negotiation with the UE-R, negotiation with the UE-T for the source processing, and switching to the source UE-T and A notification to switch the originating party's switching result.
  • the S-Anchor (UE-S) performs the charging process according to the initial switching mode, that is, the source user is free.
  • the UE-T2 user billing system generates and maintains a complete billing history during the process of switching the session or media to UE-T2 again, and throughout the period after being switched to UE-T2.
  • the UE-T2 user is an online charging user as an example.
  • the UE-T2 user is offline, and the N2C and all subsequent handovers can perform charging control in a similar manner to the initial handover.
  • the UE is switched back to the UE-S.
  • the S-Anchor determines that it has to be switched out.
  • the second handover it is determined that the new access leg established in the second handover only charges the source user, and then performs during the handover process or after the handover succeeds.
  • the charging control is performed on the source user in a similar manner to the source user charging control in the first embodiment or the second embodiment.
  • the charging request or the charging response sent by the entity that interacts with the charging information may include The same associated charging identifier related to the switched multimedia service, where the charging accounting system includes the associated charging identifier in all charging records related to the multimedia service.
  • the charging request or the charging response sent by the S-Anchor (UE-S) to the charging system of the source user also includes the associated charging identifier, so that the associated charging identifier will be All charging records generated by different charging systems at different times are associated with all the charging records associated with the above multimedia service.
  • the embodiment of the present invention implements control of data synchronization between session nodes, and solves the problem of network error or even denial of service due to data synchronization between session nodes.
  • the invention supports the synchronization of data after a smooth restart, realizes the separation of the control plane and the data plane, improves the robustness of the network, reduces network faults, ensures the service requirements of some high reliability requirements, and improves the network. User satisfaction.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de facturation de continuité de service multimédia, ancrage de signalisation de commande de session et une entité de commande de passerelle multimédia. Le procédé de facturation comprend : la réception d'une demande de commutation qui commute le service multimédia depuis le côté source UE-S vers le côté destinataire UE-T ; la détermination de la cible de facturation, qui est l'utilisateur côté source ou l'utilisateur côté destinataire ; et la mise en œuvre d'une commande de facturation sur la nouvelle étape d'accès en fonction de la cible de facturation déterminée. L'ancrage de signalisation de commande de session comporte : un module de réception pour recevoir la demande de commutation du participant initiateur, comprenant une information de commutation de service multimédia depuis le côté source vers le côté destinataire, et l'envoi de la demande reçue vers un module de commande de facturation ; un module de commande de facturation pour recevoir la demande de commutation, déterminer la cible de facturation, et la mise en œuvre de commande de facturation à la nouvelle étape d'accès en fonction de la cible de facturation déterminée et de l'information d'utilisateur côté source et d'utilisateur côté destinataire dans la demande de commutation.
PCT/CN2008/072772 2007-10-22 2008-10-21 Procédé de facturation de continuité de service multimédia, ancrage de signalisation de commande de session et entité de commande de passerelle multimédia WO2009052766A1 (fr)

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CN101986737B (zh) * 2010-11-26 2013-01-23 重庆金美通信有限责任公司 一种在一号多机多终端间相互切换且不中断通话的方法
CN103096285B (zh) * 2011-11-01 2017-11-28 中兴通讯股份有限公司 分割话单的方法及系统
WO2014000179A1 (fr) * 2012-06-27 2014-01-03 华为技术有限公司 Procédé et dispositif de gestion de facturation
EP2938023B1 (fr) * 2012-12-21 2019-05-29 Huawei Technologies Co., Ltd. Procédés et réseaux de traitement de service pair à pair
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