CN103813291B - Charge information correlating method and system - Google Patents
Charge information correlating method and system Download PDFInfo
- Publication number
- CN103813291B CN103813291B CN201410027776.2A CN201410027776A CN103813291B CN 103813291 B CN103813291 B CN 103813291B CN 201410027776 A CN201410027776 A CN 201410027776A CN 103813291 B CN103813291 B CN 103813291B
- Authority
- CN
- China
- Prior art keywords
- charging
- call
- identifier
- domain
- icid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 51
- 102000018059 CS domains Human genes 0.000 claims abstract description 66
- 108050007176 CS domains Proteins 0.000 claims abstract description 66
- 230000008569 process Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 description 17
- 230000011664 signaling Effects 0.000 description 16
- 230000004044 response Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000000977 initiatory effect Effects 0.000 description 5
- 238000013475 authorization Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Landscapes
- Telephonic Communication Services (AREA)
- Mobile Radio Communication Systems (AREA)
- Meter Arrangements (AREA)
Abstract
The embodiment of the invention discloses a kind of charge information correlating method and system, this method to include：The AS of IMS domain receives calling, and it is then to use the ICID to be otherwise used as charge associated mark using CS domains call identification or PSI DN as charge associated mark as charge associated mark to judge whether the calling uses ICID.The charge information correlating method that the present embodiment provides, by carrying out scene judgement in SCC AS, and then different association identifications is selected, the most suitable and simple association identification can be selected under different scenes, so as to simplify the complexity of charge system association process to greatest extent.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a method and a system for associating charging information.
Background
In the process of network evolution and development, a Circuit domain (CS) has a good Quality of Service (QoS) as a traditional media bearer, and a packet domain (PS) is an important bearer for data services. With the convergence of networks, an IP Multimedia Subsystem (IMS) may use CS access or PS access as a bearer in the field of mobile networks, so as to derive Services, including Voice Call Continuity (VCC), CS and IMS Combined Services (CSI), IMS Centralized control Services (ICS), and the like. The ICS provides the capability of using the CS access as the media bearing for the IMS service, and provides IMS control for the CS access, so that the media calling of the CS domain and the IMS calling service have the same service experience, and meanwhile, the media bearing advantage of the CS domain is effectively utilized, and the media calling service with better QoS can be provided.
There are many usage scenarios for ICS services, including: a Mobile Switching Center Server (MSC Server for short) using only the enhanced ICS capability uses an ICS service, an ICS User Equipment (ICS User Equipment for short) uses a service, an MSC Server and an ICS UE using the enhanced ICS capability use a service, or a legacy MSC Server and a normal UE (non ICS UE) use an ICS service, and the like. For these various usage scenarios across IMS domain and CS domain, since the control and access network are implemented in IMS domain and CS domain, respectively, the IMS entity does not necessarily know the CS domain data (including media data and some subscription data), nor does the CS domain know the state of the control plane signaling (e.g. the state of the IMS session). Therefore, if the charging information is collected by the IMS domain and the CS domain simultaneously, the charging may be repeated if the charging information of the IMS domain and the CS domain cannot be associated.
In the prior art, the 3GPP IMS system defines an IMS Charging Identifier (ICID) and a GPRS Charging Identifier (GCID) for charging data association. The scheme can realize charging association between IMS and a bearing network by exchanging charging identifiers (ICID) and GCID between a bearing layer entity and an IMS entity. The method specifically comprises the following steps:
in the session establishment phase, the UE activates a Packet Data Protocol (PDP) context. In the PDP context authorization process, a Gateway GPRS Support Node (GGSN) and a PDF exchange identifiers according to the following steps:
1) during the authorization decision, PDF (packet Data function) transfers the ICID to GGSN;
2) the GGSN passes the GCID to the PDF in a report on authorization decisions.
The PDF passes the GCID to a Proxy-Call Session control function (P-CSCF), which forwards the GCID to an IMS entity within its home network. The GGSN includes the ICID in a Charging Data Record (G-CDR). When multiple PDP contexts are required for a single IMS session, one or more GCIDs may be mapped onto the same ICID. And then the offline charging system performs associated charging on the charging call tickets generated by each network level according to the charging identifiers of different levels.
In the process of implementing the invention, the inventor finds that the prior art has the following defects: the association between the PS domain and the IMS is a many-to-many relationship, and has a more suitable time exchange identifier, but the application scene between the CS domain and the IMS in the services such as ICS and the like is complex, and a uniform exchange time is difficult to exist; meanwhile, the media channel of the CS is not in a many-to-many relationship when used for the session of the IMS, and if the identifiers of both parties are exchanged, the systems of both domains need to be upgraded, so that the cost of upgrading the systems is increased, and the efficiency of processing the charging information association is reduced.
Disclosure of Invention
The embodiment of the invention provides a charging information correlation method and a charging information correlation system, which aim to solve the defects that in the prior art, the charging information correlating between an IMS domain and a CS domain needs to be upgraded, the upgrading cost is high, and the charging information correlation efficiency is low.
The charging information correlation method provided by the embodiment of the invention comprises the following steps: a first domain generates a charging correlation identifier, reports charging information containing the charging correlation identifier to a charging system, and sends the charging correlation identifier to a second domain, so that the second domain reports the charging information containing the charging correlation identifier to the charging system; the charging correlation identifier is used for the charging system to perform correlation of the charging information reported by the first domain and the second domain according to the charging correlation identifier.
The charging information correlation method provided by the embodiment of the invention comprises the following steps: the second domain receives the charging correlation identification generated by the first domain; the charging information reported by the first domain to the charging system comprises the charging correlation identification; and the second domain reports the charging information containing the charging correlation identifier to a charging system, so that the charging system can correlate the charging information reported by the first domain and the second domain according to the charging correlation identifier.
The charging information correlation method provided by the embodiment of the invention comprises the following steps: receiving a call, judging whether the call uses ICID as a charging correlation identifier, if so, using the ICID as the charging correlation identifier, otherwise, using a CS domain call identifier or a PSI DN as the charging correlation identifier.
The charging information correlation system provided by the embodiment of the invention comprises a first domain network element communicated with a second domain network element; the first domain network element is used for generating a charging correlation identifier, reporting charging information containing the charging correlation identifier to a charging system, and sending the charging correlation identifier to a second domain; the second domain network element is configured to report charging information including the charging association identifier to the charging system; and the charging system associates the charging information reported by the first domain and the second domain according to the charging association identifier.
An apparatus for associating charging information according to an embodiment of the present invention includes: a receiving module for receiving a call; and the first judging module is used for judging whether the call uses the ICID as a charging correlation identifier, if so, the ICID is used as the charging correlation identifier, and otherwise, a CS domain call identifier or a PSI DN is used as the charging correlation identifier.
According to the charging information correlation method and system provided by the embodiment of the invention, the charging correlation identifier is generated by a certain domain according to different scenes, the charging correlation identifier is transmitted to a network element of another domain, and the charging correlation identifier is transmitted to the charging system by both domains, so that the charging system can correlate the charging information according to the received charging correlation identifier. The method provided by the invention can only upgrade one side network element, thereby reducing the upgrade cost and improving the efficiency of charging correlation.
Drawings
Fig. 1 is a schematic structural diagram of a charging correlation system according to an embodiment of the present invention;
fig. 2 is a flowchart of an embodiment of a method for associating charging information according to the present invention;
fig. 3 is a flowchart of an embodiment of a method for associating charging information according to an embodiment of the present invention;
fig. 4 is a flowchart of an embodiment of a charging information association method according to the present invention;
fig. 5 is a fourth flowchart of a charging information correlation method according to an embodiment of the present invention;
fig. 6 is a fifth flowchart of a charging information correlation method according to an embodiment of the present invention;
fig. 7 is a sixth flowchart of a charging information correlation method according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an embodiment of a charging information correlation system according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an embodiment of a network element in a first domain according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of an embodiment of a second domain network element according to the present invention;
fig. 11 is a schematic structural diagram of an embodiment of a charging information correlation system according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, it is a schematic structural diagram of a charging correlation system provided in the embodiment of the present invention; in this structure, the AS of the IMS domain may be an SCC AS, which is used to implement service control, and an interface between the AS and a Charging Data Function (CDF) is an Rf interface. The MSC Server has a CDF function built therein, and if the ICS capability of the MSC Server is enhanced, the MSC Server may be directly connected to a call session control function (CSCF, specifically, I/S-CSCF) or the MSC Server may be connected to the CSCF through a Media Gateway Control Function (MGCF). The CDF is used to collect charging information and generate a Charging Data Record (CDR), and specifically, the Charging Gateway Function (CGF) generates a CDR file and uploads it to the charging system. The following examples are all based on this system.
As shown in fig. 2, a flowchart of an embodiment of a charging information correlation method according to the present invention is provided; the embodiment comprises the following steps:
step 110, the first domain generates a charging correlation identifier, reports charging information containing the charging correlation identifier to a charging system, and sends the charging correlation identifier to the second domain;
step 120, the second domain reports the charging information containing the charging correlation identifier to the charging system;
step 130, the charging system associates the charging information reported by the first domain and the second domain according to the charging association identifier.
The charging identifier used includes: CS domain call identity or ICID (IMS charging identity) or a special PSI DN number that uniquely identifies a user session.
As shown in fig. 3, a flowchart of an embodiment of a charging information correlation method according to the present invention is provided; in this embodiment, an ICID is taken as an example of a charging association identifier, where the ICID is an IMS charging identifier used by an IMS domain, and since the ICID exists in an IMS network element, the ICID is introduced into a CS domain, and the charging identifier is added to charging information reported by an MSC Server, and the specific method is as follows:
when a CS domain network element MSC Server which can be connected to an IMS domain generates an SIP message (for example, when a call is initiated, a session initiation protocol invite SIP INVITE message is generated according to a received call SETUP message), the MSC Server generates an ICID, the ICID is carried in a 'P-Charging-Vector' header field of a message header of a SIP INVITE message which is sent to the IMS network element, and the ICID is contained in Charging information reported to a Charging system or a generated CDR, and the IMS network element also contains the ICID in the generated Charging information;
or when the MSC Server receives the SIP message (for example, the SIP invite message sent by the IMS network element is received in the terminating call, and the SIP INVITE message carries the ICID generated by the IMS network element), the ICID is extracted from the "P-Charging-Vector" header field of the SIP INVITE message header, and the ICID is included in the reported Charging information or the generated CDR.
The specific steps of the call-initiating scenario include (similar to the call-terminating scenario):
step 210, after receiving a call Setup request (Setup) message of the terminal, the MSC Server generates an ICID, generates a Charging Data Record (CDR) including the ICID, and sends the CDR to a charging system;
because the Charging Date Function (CDF for short) is built in the MSC Server, the MSC Server can directly generate the CDR containing the ICID;
to include this ICID in the CDR of the CS domain, this is specifically achieved by adding fields in the sub-records of the CS call and event record (CSRecord), such as the originating record MOCallRecord, the terminating record MTCallRecord, etc., as follows (MTCallRecord handles similarly):
step 220-;
the AS in this step may be a Service centralized control Server (SCC AS for short);
specifically, the MSC Server sends a SIP Invite message carrying the ICID to the CSCF, and the CSCF forwards the SIP message to the AS;
step 240 and 250, the AS replies a SIP200 (OK) response message to the MSC Server through the CSCF;
specifically, the AS returns a SIP200 (OK) response message to the CSCF; CSCF sends the SIP200 (OK) response message to MSC Server;
step 260, the AS reports the charging information containing the ICID to the CDF, reports an ACR command that the CDF can use Diameter, and the CDF generates a CDR accordingly and sends the CDR to a charging system through a charging gateway function CGF;
step 270, the CDF sends an "ACA" response message to the AS;
step 280, the charging system receives the CDR sent by the MSC Server and the IMS network element, identifies a charging correlation identification field, for example, an explicit chargingingid field in the CDR reported by the MSC Server, according to the field in the CDR, and performs correlation processing on the relevant charging information received from each network element of the IMS domain and the CS domain based on the determined charging correlation identification. The specific association method comprises the following steps: and searching an extrinsic ChargingingID field in the CDR reported by the MSCServer, if the field exists and the value of the field is equal to the ICID in the CDR reported by the AS, considering the field AS an associated CDR, and performing association processing, such AS merging, nuclear subtraction and the like.
The charging information correlation method provided by this embodiment only needs to upgrade the MSC Server in the CS domain, so that the ICID can be generated, and the charging information includes the ICID, and does not need to modify the IMS domain, thereby reducing the cost of network upgrade.
As shown in fig. 4, it is a flowchart of an embodiment of a charging information association method provided in the embodiment of the present invention; the scene of the embodiment is as follows: in the ICS service, if the user equipment performs service control signaling interaction with an AS (specifically, SCCAS in this embodiment) before performing a CS call, and the AS generates a Public Service Identity (PSI) Directory Number (DN) for the call and returns the generated Number to the user equipment, the PSI DN is used to associate the service control signaling and the media bearer signaling in the SCC AS, that is, the media bearer related signaling transmitted between the MSC Server and the IMS network element, and may uniquely identify a session, where the PSI DN identification may be used AS an association identification, and the steps in this embodiment specifically include:
step 310, after receiving the Setup message of the terminal, the MSC Server obtains the PSIDN carried in the Setup message, and generates a CDR according to the PSI DN and reports the CDR to the charging system, and specifically, reports the PSI DN to the charging system as the value of the called number calledNumber field in the CDR;
step 320-;
specifically, the MSC Server sends an Initial Address Message (IAM) Message of an ISDN User Part (ISUP for short) to a Media Gateway Control Function (MGCF for short), where the Message carries a PSI DN;
MGCF converts message, generates SIP Invite message according to ISUP IAM message sent by MSC Server, carries PSI DN in SIP Invite message, and sends it to AS through CSCF;
step 350-;
specifically, the AS associates the service control signaling and the media bearer signaling (a true called number can be determined from the association) with the PSI DN, replaces the PSI DN with the true called number AS the called number, and sends a SIP200 (OK) response message to the CSCF, which sends the SIP200 (OK) response message to the MGCF;
step 370, MGCF replies a response Message (Answer Message, abbreviated) to MSC Server;
380, the AS reports charging information to the CDF, the charging information contains a real called number and a PSI DN, reports an ACR command which can use Diameter, the CDF generates a CDR for the AS, the CDR contains the PSI DN, wherein the CDR type can be a general ASRecord, or a CDR type is expanded for ICS on the basis of the CDR of the AS, and the CDR type is sent to a charging system through a charging gateway function CGF;
the CDF writes the PSI DN in an access association identifier (accesscorrelation id) field of the CDR, and in order to enable the charging system to identify the accesscorrelation id, this embodiment adds a seed data type iCS-PSI-DN to the accesscorrelation id, as follows:
step 390, the CDF sends an "ACA" response message to the AS;
and step 400, the charging system performs charging information correlation processing according to the identifier.
The charging system receives CDR of AS, identifies the associated identification field, namely iCS-PSI-DN in the Access correlation ID, according to the type of CDR, and associates the related charging information received from IMS domain and each network element of CS domain based on the identified charging associated identification. Specific example of the association method: and searching a bellednumber field in the CDR reported by the MSC Server, if the value of the field is equal to the iCS-PSI-DN in the CDR reported by the AS, considering the field AS an associated CDR, and performing association processing, such AS merging, nuclear subtraction and the like.
The charging information correlation method provided by the embodiment only needs to upgrade the AS of the IMS domain, so that the charging information can contain the PSI DN without changing the CS domain, the network upgrading cost can be reduced, and meanwhile, the charging system correlation only needs to search the call ticket of which the called number is equal to the PSI DN in the CDR of the CS domain, thereby simplifying the correlation difficulty of the charging system and improving the efficiency of the charging system.
As shown in fig. 5, it is a flowchart of a fourth embodiment of a charging information correlation method provided in this embodiment of the present invention; in this embodiment, the CS domain call identifier is used as the charging association identifier, and since the CS domain call identifier already exists in the CS network element, the CS domain call identifier is introduced into the IMS domain, and the CS domain call identifier is added to the charging information reported by the IMS network element. The CS domain call identifier used in this embodiment may be a call parameter (CR) or a network call parameter (NCR). The specific method comprises the following steps:
generating a CS domain call identifier (generated by an MSC Server when calling, and generated by an MSC Server or MGCF when calling), a signaling conversion entity of the CS domain and an IMS domain, namely the MSC Server or the MGCF generates SIP INVITE message according to the received SETUP call establishment message when the signaling is converted (for example, when the call is started, the MSC Server or the MGCF generates SIP INVITE message by the MSC Server, the signaling conversion entity carries the CS domain call identifier in the generated SIP INVITE message, the IMS network element carries the call identifier in the reported charging information, and the MSC Server contains the call identifier in the generated CDR;
or, when a signaling conversion entity (namely, MSC Server or MGCF) in the CS domain and the IMS domain receives SIP INVITE signaling (for example, when calling a call), the signaling conversion entity generates a CS domain call identifier and carries the identifier in a response message of SIP INVITE to the IMS network element, the IMS network element carries the call identifier in the reported charging information, and the MSC Server includes the call identifier when reporting the charging information.
The method for carrying the CS domain call identifier comprises the following steps: this identification may be carried in SIP INVITE or in the header of its response message (e.g., the P-Charging-Vector header field, where a field cscr is added to carry this value) or in the SDP, which the CDF writes to the AccessCorrelationID of the CDR.
In the implementation, the CS domain call identifier and the address of the MSC Server may be used in combination to perform charging information association, where the MSC Server address may be carried in the via header field of the SIP message and sent to the IMS network element.
In the following, taking MGCF generation SIP INVITE in the origination scenario as an example to describe a specific flow (the sip invite is generated by the MSC Server, and the terminating situation is similar to this), this embodiment describes with CR as the CS domain call identifier, and NCR as the CS domain call identifier is the same as this, and the specific steps include:
step 510, the MSC Server receives a Setup message sent by the terminal, and generates a CDR according to the CR in the obtained Setup message and reports it to the charging system;
step 520, MSC Server sends ISUP IAM message to MGCF, the message carries CR;
step 530 and 540, the MGCF performs message conversion, generates a SIP Invite message according to the IAM message sent by the MSC Server, the message header or SDP of the SIP Invite message carries the CR, and sends the CR to the AS, such AS the SCC AS, through the CSCF;
specifically, the MGCF sends a SIP Invite message carrying the CR to the CSCF, and the CSCF sends the received SIP Invite message to the AS;
step 550-;
specifically, the AS sends a SIP200 (OK) response message to the CSCF, and the CSCF sends the SIP200 (OK) response message to the MGCF;
step 570, MGCF replies ANM confirm message to MSC Server;
step 580, the AS reports the charging information containing the CR to the CDF, reports an ACR command that can use Diameter, and the CDF generates a CDR (CDR type may be a general ASRecord, or a CDR type is extended for ICS based on the CDR of the AS) according to the received charging information, and sends the CDR to the charging system through the charging gateway function CGF. In order to enable the charging system to identify the processing method of the accesscorrection ID, this embodiment adds a data type to the accesscorrection ID, as follows:
step 590, the CDF sends an ACA response message to the AS;
step 600, the charging system performs correlation processing of the charging information according to the call identifier;
the Charging system receives the CDR sent by the AS, identifies the correlation identification field, namely cS-Charging-Id in the Access correlation ID, according to the type of the CDR, and performs correlation processing on the related Charging information received from each network element of the IMS domain and the CS domain on the basis of the identified Charging correlation identification. Specific example of the association method: and searching a callReference field in the CDR reported by the MSC Server, if the value of the callReference field is equal to the cS-Charging-Id in the CDR reported by the AS, considering the CDR AS an associated CDR, and performing association processing, such AS combination, nuclear subtraction and the like.
The charging information correlation method provided by this embodiment introduces the CR or NCR of the CS domain into the IMS domain, extracts the information from the AS of the IMS domain, and reports the call identifier in the reported charging information, so that the correlation of the charging information is completed.
As shown in fig. 6, it is a flowchart of a fifth embodiment of a charging information correlation method provided in the embodiment of the present invention; in this embodiment, which charging correlation identifier is selected to be used in each scenario, and then the corresponding charging information is reported. The method comprises the following specific steps:
in the CS domain: if the MSC Server enhances the ICS capability, the generated CDR contains the externalChargingID, and if the MSC Server does not enhance the ICS capability, the ordinary CDR is generated.
The SCC AS in the IMS domain performs the following processing:
step 710, the SCC AS receives the SIP Invite message;
step 720, the SCC AS determines whether to use the ICID AS the charging correlation identifier, if so, performs step 730; otherwise, go to step 740;
specifically, the SCC AS is determined by:
for the call initiation, the SCC AS judges whether the calling terminal is registered in the IMS domain through the MSC Server, if so, the ICID is used AS the associated identifier, otherwise, the CR is used AS the associated identifier; or,
the SCC AS parses the via header field of the SIP Invite message, e.g.,
Via：SIP/2.0/UDP scscf1.home1.net;branch=29hG4bK332b23.1,
SIP/2.0/UDP msc1.home1.net;branch=z9hG4bK332b23.1
the SCC AS judges whether the header domain contains an MSC node, and if so, uses the ICID AS a charging correlation identifier; otherwise, using the CR as the association identifier;
for a terminal call, the SCC AS judges whether a called terminal is registered in an IMS domain through an MSC Server, if so, the ICID is used AS an associated identifier, otherwise, the CR is used AS the associated identifier;
step 730, SCC AS uses ICID AS charging correlation identifier of charging information of IMS domain and CS domain;
the specific reporting of the charging information and the subsequent correlation processing of the charging information are the same as the second embodiment; and will not be described in detail herein.
Step 740, the SCC AS uses the CR/NCR AS the charging correlation identification of the IMS domain and the CS domain charging information.
The specific reporting of the charging information and the subsequent correlation processing of the charging information are the same as the fourth embodiment; and will not be described in detail herein.
In the charging information correlation method provided in this embodiment, by performing scene determination in the SCC AS and further selecting different correlation identifiers, the most appropriate and simple correlation identifier may be selected in different scenes, so AS to simplify the complexity of the correlation processing of the charging system to the maximum extent.
As shown in fig. 7, a sixth flowchart of an embodiment of a charging information correlation method according to an embodiment of the present invention is shown; in this embodiment, which charging association identifier is used is selected in a scenario, and the corresponding charging information is reported, in this embodiment, ICID or PSI DN or CR is used as the association identifier. The specific method comprises the following steps:
in the CS domain: if the MSC Server enhances the ICS capability, the generated CDR contains the externalChargingID, and if the MSC Server does not enhance the ICS capability, the ordinary CDR is generated.
The SCC AS in the IMS domain performs the following processing:
step 810, the SCC AS receives the SIP Invite message;
step 820, SCC AS determines whether to use ICID AS charging correlation identifier, if yes, performs step 830; otherwise, go to step 840;
specifically, the SCC AS is determined by:
for the call initiation, the SCC AS judges whether the calling terminal is registered in the IMS domain through the MSC Server, if so, the ICID is used AS the associated identifier, otherwise, the follow-up judgment is continued; or,
the SCC AS parses the via header field of the SIP Invite message, e.g.,
Via：SIP/2.0/UDP scscf1.home1.net;branch=29hG4bK332b23.1,
SIP/2.0/UDP msc1.home1.net;branch=z9hG4bK332b23.1
the SCC AS judges whether the header field contains the MSC node, and if so, the ICID is used AS the correlation identifier; otherwise, continuing the subsequent judgment;
for a terminal call, the SCC AS judges whether a called terminal is registered in an IMS domain through an MSC Server, and if the called terminal is registered, the ICID is used AS an associated identifier; otherwise, continuing the subsequent judgment;
step 830, SCC AS uses ICID AS charging association identifier of charging information of IMS domain and CS domain;
the specific reporting of the charging information and the subsequent correlation processing of the charging information are the same as the second embodiment; and will not be described in detail herein.
Step 840, SCC AS determines whether to use the dynamic PSI DN AS the charging association identifier, where the specific determination method is: if the user calls a PSI DN dynamically allocated by the SCC AS, then step 850 is executed; otherwise, go to step 860;
step 850, SCC AS uses PSI DN AS charging correlation mark of IMS domain and CS domain charging information;
the specific reporting of the charging information and the subsequent correlation processing of the charging information are the same as the third embodiment; and will not be described in detail herein.
Step 860, the SCC AS uses the CR AS the charging correlation identifier of the IMS domain and CS domain charging information.
The specific reporting of the charging information and the subsequent correlation processing of the charging information are the same as the fourth embodiment; and will not be described in detail herein.
The charging information correlation method provided by this embodiment may select the most appropriate and simple correlation identifier in different scenes by performing scene determination in the SCCAS and then selecting different correlation identifiers, thereby simplifying the complexity of the correlation processing of the charging system to the maximum extent.
As shown in fig. 8, a schematic structural diagram of an embodiment of a charging information correlation system provided in the embodiment of the present invention is shown, where the embodiment includes: a first domain network element 81 in communication with a second domain network element 82; wherein,
the first domain network element 81 is configured to generate a charging association identifier, report charging information including the charging association identifier to a charging system, and send the charging association identifier to a second domain;
the second domain network element 82 is configured to report charging information including the charging association identifier to the charging system; and the charging system associates the charging information reported by the first domain and the second domain according to the charging association identifier.
Further, in this embodiment, as shown in fig. 9, the first domain network element specifically includes: an associated identifier generating unit 11, configured to generate a charging associated identifier; a first CDR generating unit 12, configured to generate a charging data record CDR including the charging correlation identifier, and send the CDR to a charging system; and the notification unit 13 is configured to generate a message carrying the charging association identifier, and send the message to the second domain network element. Specifically, the first CDR generating unit stores the ICID by adding a field to a sub-record of the CSRecord.
Specifically, in this embodiment, the first domain may be a CS domain, and the second domain may be an IMS domain; or, the first domain is an IMS domain and the second domain is a CS domain. When the first domain is a CS domain, the first domain network element may be an MSC Server of the CS domain, and the MSC Server may generate an ICID or CS domain call identifier as a charging identifier, generate a session initiation protocol SIP message carrying the ICID or CS domain call identifier, and send the SIP message to the IMS network element. The CS domain network element may also include a signaling conversion entity and an MSCServer, wherein the association identifier generation unit and the notification unit are located in the signaling conversion entity, and the CDR generation unit is located in the MSCServer; when the signaling conversion entity receives an SIP message sent by an IMS network element, a CS domain calling identifier is generated as a charging associated identifier; and the CS domain calling identification is carried in the response message of the received session initiation protocol SIP message and is sent to the IMS network element.
When receiving a CS domain call identifier sent by a CS domain network element, an IMS domain network element sends the CS domain call identifier carried in an ACR command to a CDF, and the CDF sends the CS domain call identifier contained in an Access correlation ID of a CDR to the charging system.
In this embodiment, when the first domain network element is an IMS domain network element and the second domain network element is a CS domain network element, the charging association identifier is an ICID or a PSI DN. And when the charging correlation identifier is an ICID, the second domain network element specifically includes: the receiving unit is used for receiving an SIP message which is sent by an IMS network element and carries the ICID generated by the IMS network element; and the second CDR generating unit is used for generating a CDR containing the ICID and sending the CDR to a charging system. Wherein the second CDR generating unit stores the ICID by adding a field to a sub-record of the CSRecord.
The IMS domain network element may be an application server AS, or a CSCF, and specifically, when the first domain network element is an IMS domain network element, the AS or the CSCF may generate an ICID or a PSI DN AS the charging identifier. If the IMS domain network element generates the ICID, the structure diagram of the CS domain network element, as shown in fig. 10, may specifically include: the receiving unit is used for receiving an SIP message which is sent by an IMS network element and carries the ICID generated by the IMS network element; and the second CDR generating unit is used for generating a CDR containing the ICID and sending the CDR to a charging system.
Further, in this embodiment, the charging information association system further includes: and the charging system 83 is configured to perform association of the charging information reported by the first domain network element and the second domain network element according to the charging association identifier.
The specific implementation of the above process is referred to in the embodiment of the method, and is not described in detail here.
Fig. 11 is a schematic structural diagram of an embodiment of a charging information correlation system according to an embodiment of the present invention, and as shown in fig. 11, the charging information correlation system according to the embodiment includes: the system comprises a receiving module 4 and a first judging module 5, wherein the receiving module 4 is used for receiving a call; a first judging module 5, configured to judge whether the call uses the ICID as the charging association identifier, if so, the ICID is used as the charging association identifier, and otherwise, the CS domain call identifier and/or the PSI DN is used as the charging association identifier.
The first determining module 5 is specifically configured to determine, for a calling call, whether a via header field of an SIP message for the call includes an MSC node, and if so, it indicates that the calling call uses an ICID as a charging correlation identifier;
for the terminal call, judging whether the called terminal is registered in the IMS domain through the MSC Server, if so, indicating that the terminal call uses the ICID as the charging correlation identifier.
The first judging module 5 is further configured to: judging whether a calling terminal when starting calling or a called terminal when ending calling is registered in an IMS domain through the MSCServer, if so, indicating that the calling uses the ICID as a charging correlation identifier.
When the first determining module 5 determines that the ICID is not used as the charging correlation identifier, the charging information correlation system of this embodiment further includes: and the second judging module 6 is used for judging whether the called number is the PSI DN dynamically allocated by the AS, if so, the PSI DN is used AS the charging associated identifier, and otherwise, the CS domain calling identifier is used AS the charging associated identifier.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (6)
1. A method for associating charging information is characterized by comprising the following steps:
and the AS of the IMS domain receives the call, judges whether the call uses the ICID AS a charging correlation identifier, if so, uses the ICID AS the charging correlation identifier, and otherwise, uses the CS domain call identifier or the PSI DN AS the charging correlation identifier.
2. The charging information correlation method according to claim 1, wherein the determining whether the call uses the ICID as the charging correlation identifier specifically comprises:
for a call starting call, judging whether a calling terminal during the call starting or a called terminal during the call ending is registered in an IMS domain through an MSC Server, if so, indicating that the call uses ICID as a charging correlation identifier; or judging whether a via header field of the SIP message for calling contains an MSC node, if so, indicating that the calling call uses ICID as a charging correlation identifier;
for a terminal call, judging whether the called terminal is registered in an IMS domain through an MSC Server, if so, indicating that the terminal call uses ICID as a charging correlation identifier.
3. The charging information correlation method according to claim 1 or 2, wherein when it is determined that the ICID is not used as the charging correlation identifier, the method further comprises:
and judging whether the called number is the PSI DN dynamically distributed by the AS, if so, using the PSI DN AS a charging correlation identifier, and otherwise, using the CS domain calling identifier AS the charging correlation identifier.
4. A system for associating charging information, comprising:
a receiving module for receiving a call;
and the first judging module is used for judging whether the call uses the ICID as a charging correlation identifier, if so, the ICID is used as the charging correlation identifier, and otherwise, a CS domain call identifier or a PSI DN is used as the charging correlation identifier.
5. The charging information correlation system according to claim 4,
for the originating call, the first judging module is used for judging whether a calling terminal during originating call or a called terminal during terminating call is registered in an IMS domain through an MSC Server, if so, the call uses ICID as a charging correlation identifier; or judging whether a via header field of the SIP message for calling contains an MSC node, if so, indicating that the calling call uses ICID as a charging correlation identifier;
for a terminating call, the first judging module is configured to judge whether a called terminal is registered in an IMS domain through an MSC Server, and if so, the first judging module indicates that the terminating call uses an ICID as a charging association identifier.
6. The charging information correlation system according to claim 4, further comprising:
and the second judging module is used for judging whether the called number is a PSI DN dynamically distributed by an AS or not when the first judging module judges that the ICID is not used AS the charging correlation identifier, if so, the PSI DN is used AS the charging correlation identifier, and otherwise, the CS domain calling identifier is used AS the charging correlation identifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410027776.2A CN103813291B (en) | 2009-01-23 | 2009-01-23 | Charge information correlating method and system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410027776.2A CN103813291B (en) | 2009-01-23 | 2009-01-23 | Charge information correlating method and system |
| CN200910077598A CN101790147A (en) | 2009-01-23 | 2009-01-23 | Method and system for correlating charging information |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910077598A Division CN101790147A (en) | 2009-01-23 | 2009-01-23 | Method and system for correlating charging information |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103813291A CN103813291A (en) | 2014-05-21 |
| CN103813291B true CN103813291B (en) | 2017-12-15 |
Family
ID=50709395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410027776.2A Active CN103813291B (en) | 2009-01-23 | 2009-01-23 | Charge information correlating method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103813291B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105530105B (en) * | 2014-10-24 | 2019-11-29 | 南京中兴软件有限责任公司 | The correlating method and device of network element charge information in IP multimedia subsystem |
| CN106341239B (en) * | 2015-07-10 | 2020-04-21 | 中国移动通信集团公司 | Service charging method and device in IMS |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69823680T2 (en) * | 1998-12-22 | 2005-04-21 | Ericsson Telefon Ab L M | Communication network and method for charging and billing |
| US20080010179A1 (en) * | 2006-07-10 | 2008-01-10 | Yigang Cai | Charging for offnet sessions between an ims network and a legacy network |
| CN101163020B (en) * | 2006-10-11 | 2012-08-29 | 华为技术有限公司 | Charging correlation method, device and system |
-
2009
- 2009-01-23 CN CN201410027776.2A patent/CN103813291B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103813291A (en) | 2014-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7680481B2 (en) | Method and apparatus for linking charging records | |
| JP4975106B2 (en) | Third party billing for SIP sessions | |
| US7965704B2 (en) | Method and apparatus for handling IMS terminal's call request including request for real-time service received over IMS domain by CSI terminal | |
| EP2391057B1 (en) | Method for selecting the type of charging correlation ID and charging correlation system | |
| JP5571386B2 (en) | User equipment time stamp for offline charging in IMS networks | |
| US8942668B2 (en) | Camel service charging in IMS networks | |
| US20080010179A1 (en) | Charging for offnet sessions between an ims network and a legacy network | |
| US9356788B2 (en) | Method and apparatus for use in an IP multimedia subsystem | |
| CN101155340B (en) | Method and system for circuit field sensing IMS field conversation charging information | |
| EP2716001B1 (en) | Routing of calls in ip multimedia subsystem centralized services networks | |
| CN105959274B (en) | Communication method and network element used in communication method | |
| CN103813291B (en) | Charge information correlating method and system | |
| CN104301450B (en) | The method and device of addressing | |
| CN100454814C (en) | Fork situation call charge correlating and differentiating method | |
| CN105591761B (en) | Realize the method, apparatus and system of the cross-domain charge accountings of IMS | |
| US20130039225A1 (en) | Method and apparatus relating to charging in an ip multimedia subsystem | |
| KR100936524B1 (en) | Device for managing sip message, method and system for transmitting sip messages with networks | |
| WO2011047712A1 (en) | Charging in an ip multimedia subsystem network | |
| KR20070121463A (en) | Method and system for providing instant messaging roaming service | |
| KR20100042411A (en) | Charging method and charging system for real time ip multimedia service |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |