CN102196397A - Method and system for improving ticket construction integrity and charging data function - Google Patents

Method and system for improving ticket construction integrity and charging data function Download PDF

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CN102196397A
CN102196397A CN2010101404095A CN201010140409A CN102196397A CN 102196397 A CN102196397 A CN 102196397A CN 2010101404095 A CN2010101404095 A CN 2010101404095A CN 201010140409 A CN201010140409 A CN 201010140409A CN 102196397 A CN102196397 A CN 102196397A
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cdf
acr
complete
same session
main
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CN102196397B (en
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王修中
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2010/076474 priority patent/WO2011113261A1/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16Error detection or correction of the data by redundancy in hardware
    • G06F11/20Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/202Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
    • G06F11/2023Failover techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/14Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1428Invoice generation, e.g. customization, lay-out, database processing, algorithms for calculating the bill or formatting invoices as WWW pages
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/41Billing record details, i.e. parameters, identifiers, structure of call data record [CDR]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/53Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP using mediation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/70Administration or customization aspects; Counter-checking correct charges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/70Administration or customization aspects; Counter-checking correct charges
    • H04M15/74Backing up
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/01Details of billing arrangements
    • H04M2215/0164Billing record, e.g. Call Data Record [CDR], Toll Ticket[TT], Automatic Message Accounting [AMA], Call Line Identifier [CLI], details, i.e. parameters, identifiers, structure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/70Administration aspects, modify settings or limits or counter-check correct charges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/70Administration aspects, modify settings or limits or counter-check correct charges
    • H04M2215/709Backup

Abstract

The invention discloses a method and a system for improving ticket construction integrity and a charging data function (CDF). The technical problem that a large amount of incomplete tickets are generated because accounting request (ACR) message of the constructed tickets is possibly lost in main/standby switch of the CDF is solved. Before the main/standby switch happens, the main CDF caches the ACR message which is not completely acquired and is related with the same session in a local place; after the main/standby switch happens, the original main CDF forwards the ACR message which is not completely acquired and is related with the same session to the current main CDF; and the original main CDF or the current main CDF constructs a ticket charging data record (CDR) according to the integrity condition of the ACR message related with the same session. In an IP multimedia subsystem (IMS) network, during the main/standby switch, the ACR message related with the same session is sent to a certain specific CDF can be ensured, so that incomplete CDR is greatly reduced, and the possibility of the revenue loss of an operator is reduced.

Description

A kind of method, system and charging data function that improves the ticket structural integrity
Technical field
The present invention relates to the communications field, relate more specifically to IP Multimedia System (IP MultimediaSubsystem, IMS) a kind of raising ticket/charging data record (Charging Data Record in, CDR) method of structural integrity, system and charging data function (Charging Data Function, CDF).
Background technology
In the communication network that 3GPP describes, charge system is one of its important function parts, is the important leverage that operator realizes business revenue.Its major function is as described below:
Fig. 1 has illustrated the composition of charging functional entity and the relation between them in the 3GPP network: charging triggering function (Charging Trigger Function, CTF) be embedded in each network element of 3GPP IMS and (comprise the Access Layer network element, the service network element, control subsystem) in, the function that it is mainly realized is, operating position according to the Internet resources that monitor, carry out the collection of charge information, and by Rf interface (Offline ChargingReference Point) send to charging data function (Charging Data Function, CDF); The major function of CDF is, receive the charging request message that CTF sends (Accounting Request ACR), is configured to the CDR that charges, and by the Ga interface send to Charging Gateway Functionality (Charging GatewayFunction, CGF); The major function of CGF is, store and manage receiving the CDR that CDF sends, and by the Bx interface with the CDR file send to billing domain (Billing Domain, BD).
Consider the importance of metering data, when CTF and CDF transmission charging message, 3GPP has proposed a kind of reliable mechanism, as shown in Figure 2, a CTF links to each other with two CDF, and with CDF (First CDF), another CDF is as standby CDF (Second CDF) as main for one of them CDF.CTF is dealt into ACR message main with on the CDF earlier, and when producing fault with the main CDF of using link or interrupting, CTF just is dealt into standby CDF to ACR message and goes up (this process is referred to as FailOver).In follow-up ACR message transport process,, then again ACR message is sent to the CDF last (this process is referred to as FailBack) of main usefulness if CTF detects and the link of main usefulness recovers.When the link of CTF and active and standby CDF all interrupted, CTF will have certain buffer memory ability, and assurance ACR data are not lost.Main can be with CDF and standby CDF according to the ACR message constructing CDR that goes out to charge, and send to the CGF node by the Ga interface.
In the process that the IMS business is carried out, the IMS network element comes the operating position of recording user to Internet resources by continuous transmission ACR message, to reach the purpose of charging.Such as, in the IMS business at first, by sending the beginning of initial charging request (Start ACR) Message Record IMS session, the IMS session surpasses certain hour or medium takes place when switching, and the IMS network element sends interim request (Interim ACR) message of chargeing; In the IMS conversation end, the IMS network element will send and stop chargeing request (Stop ACR) message.For the IMS business of non-conversation class, the IMS network element sends EventACR.CDF is when the structure ticket, and Start ACR, Interim ACR and Stop ACR that related same session is relevant are configured to a ticket output.When the relevant a part of ACR of same ticket loses (such as, lose Stop ACR), CDF can only export an incomplete CDR when the structure ticket.When output during incomplete CDR, cause probably this IMS session can't charge (such as, crucial Start ACR or StopACR disappearance cause among the CDR key messages such as sessionless duration).
By above introduction as can be known, when CTF and main link down with CDF, when standby CDF is arrived in link switchover, if a lot of ongoing IMS sessions are arranged this moment, so, the relevant ACR of same session that relevant IMS network element produces can send to main with on CDF and the standby CDF respectively, will cause CDF to construct incomplete CDR like this.When CTF detect main with the CDF link-recovery again with link switchover to main when using CDF, situation is similar, will cause producing incomplete CDR equally.That is to say, when FailOver and FailBack generation, will cause a large amount of imperfect CDR to occur.And then cause operator's business revenue to reduce.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method, system and CDF that improves the ticket structural integrity, be used to solve the ACR information drop-out that when masterslave switchover takes place CDF, may cause the structure ticket, cause producing the technical problem of a large amount of imperfect tickets.
For achieving the above object, technical scheme of the present invention is achieved in that
Based on an aspect of of the present present invention, a kind of method that improves the ticket structural integrity is proposed, this method comprises:
Before masterslave switchover takes place, the master will not collect complete charging request (ACR) message buffering relevant with same session in this locality with charging data function (CDF);
After masterslave switchover took place, former master did not collect the complete ACR forwards relevant with same session to the current main CDF that uses with CDF with described;
Described former master constructs ticket (CDR) with CDF or described current main complete situation with the CDF basis ACR message relevant with same session.
Further, before masterslave switchover takes place, also comprise the main step that is used to transmit the link of the relevant ACR message of described incomplete and same session with CDF and standby CDF foundation.
Further, described former master with CDF or described current main with CDF set judge in the time limit the relevant ACR message of described and same session whether collected complete, complete as if collection in the setting time limit, then construct complete ticket, otherwise construct incomplete ticket.
Further, before masterslave switchover takes place and afterwards, also comprise former main with CDF and current main with confirming each other active and standby step by the activestandby state notification message between the CDF with state.
Based on above-mentioned a kind of method that improves the ticket structural integrity, the present invention also proposes a kind of system that improves the ticket structural integrity, and this system comprises:
The master uses CDF, is used for receiving and buffer memory ACR message;
Standby CDF, being used for taking over when masterslave switchover takes place the master becomes the current main CDF that uses with CDF;
Before masterslave switchover takes place, described main with setting up the link that is used to transmit the relevant ACR message of described incomplete and same session between CDF and the standby CDF, the master will not collect the complete ACR message buffering relevant with same session in this locality with CDF; After masterslave switchover took place, former master did not collect the complete ACR forwards relevant with same session to the current main CDF that uses with CDF with described; Described former master constructs ticket with CDF or described current main complete situation with the CDF basis ACR message relevant with same session.
Based on an aspect of of the present present invention, a kind of CDF is proposed, this CDF comprises:
The link establishment module is used for setting up the link that is used to transmit the relevant ACR message of incomplete and same session with the CDF of opposite end;
The state confirmation module is used to confirm the active and standby state of using of the CDF of self and opposite end;
The ACR cache module is used for receiving and buffer memory ACR message, when the ACR message sink relevant with same session is complete it is submitted to the CDR constructing module;
The ACR forwarding module is used for the CDF that ACR forwards after masterslave switchover takes place that the incomplete and same session of ACR cache module buffer memory is relevant is given the opposite end;
The CDR constructing module is used to construct CDR, and it is transmitted to Charging Gateway Functionality (CGF).
Further, described CDR constructing module set judge in the time limit the relevant ACR message of described and same session whether collected complete, complete as if collection in the setting time limit, then construct complete CDR, otherwise construct incomplete CDR.
Adopt the inventive method, in the IMS network, when FailOver and FailBack take place, can guarantee that the ACR message that same session is relevant sends on certain specific CDF, significantly reduce the generation of imperfect CDR, reduced the possibility of operator's business revenue loss.
Description of drawings
Fig. 1 is the billing function structure chart of 3GPP definition;
Fig. 2 transmits schematic diagram for the charging message of 3GPP definition;
Fig. 3 is the system configuration schematic diagram of the raising ticket structural integrity of the present invention's proposition;
Fig. 4 is the method flow diagram of the raising ticket structural integrity of the present invention's proposition;
Fig. 5 is the structural representation of the CDF that can improve the ticket structural integrity of the present invention's proposition.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
The present invention is directed to and to produce the technical problem of a large amount of imperfect CDR when present FailOver and FailBack take place and propose, because FailOver and FailBack can cause main with active and standby the switching with state between CDF and the standby CDF, therefore, the present invention is referred to as the CDF masterslave switchover with FailOver and the FailBack that takes place between the CDF.The present invention proposes, and is main with the mechanism that needs to set up a safety between CDF and the standby CDF, and this mechanism can guarantee that the relevant ACR of same session finally can send on the same CDF (main with CDF or standby CDF), to avoid the generation of imperfect CDR.For achieving the above object, the present invention proposes a kind of system that improves the ticket structural integrity, and this system's concrete structure as shown in Figure 3.Other is with the existing system phase region, the present invention also needs to set up a physical connection between the master is with CDF and standby CDF, be used for the affirmation of the activestandby state between the CDF, and when masterslave switchover takes place, send the master to standby CDF with the incomplete ACR message that CDF goes up the ticket correspondence; This system mainly comprises:
The master uses CDF, is used for receiving and buffer memory ACR message;
Standby CDF, being used for taking over when masterslave switchover takes place the master becomes the current main CDF that uses with CDF;
Before masterslave switchover takes place, the master will not collect the complete ACR message buffering relevant with same session in this locality with CDF; After masterslave switchover took place, former master did not collect the complete ACR forwards relevant with same session to the current main CDF that uses with CDF with described; Described former master constructs ticket with CDF or described current main complete situation with the CDF basis ACR message relevant with same session.
Preferably, described former master with CDF or described current main with CDF set judge in the time limit the relevant ACR message of described and same session whether collected complete, complete as if collection in the setting time limit, then construct complete ticket, otherwise construct incomplete ticket.
Accompanying drawing 4 is the method flow diagram of the raising ticket structural integrity that the present invention proposes, this illustrated example main with the mutual situation of CDF and standby CDF and to receiving the processing of message under the FailOver situation, concrete steps are as follows:
Step S01: a CDF sends handshake information to the 2nd CDF;
Step S02: the 2nd CDF sends response message to a CDF after receiving the handshake information that a CDF sends, by setting up physical link between handshake information the one CDF and the 2nd CDF; The CDF that initiates handshake information can be that a CDF can be the 2nd CDF also, can set up the physical link between the two after the other side replys.
Step S03: a CDF sends the activestandby state notification message to the 2nd CDF, informs that the other side oneself is that current main to use CDF, the other side be current standby CDF;
Step S04: the 2nd CDF confirms that to a CDF transmit status acknowledge message master of two CDF uses, stand-by state;
Step S05:IMS network element (such as, the serving session control function, Server-Call Session ControlFunction S-CSCF) sends Start ACR message to the CDF of current main usefulness;
Step S06: a CDF to local, wait for Start ACR message buffering after the relevant ACR of same session receives and constructs CDR again;
Step S07: FailOver, take place in the link down of a CDF and CTF;
Step S08:IMS network element (such as, S-CSCF) send the relevant follow-up Interim ACR of same session and Stop ACR message (after FailOver to the 2nd CDF, the 2nd CDF has been converted into the main state of using, and " main using " and " standby " state of CDF are dynamic changes);
Step S09: the 2nd CDF is that former master sends the activestandby state notification message with CDF to a CDF, informs that the other side oneself has become the master and used CDF, and the other side has become standby CDF;
Step S10: a CDF confirms that to the 2nd CDF transmit status acknowledge message the master of two CDF uses, stand-by state; Promptly the 2nd CDF becomes and main uses CDF, and a CDF becomes standby CDF
Step S11: a CDF sends to the 2nd CDF with belonging to of own buffer memory Start ACR message same session, that also be not configured to CDR; The implication of this step promptly after masterslave switchover takes place for two CDF, formerly mainly merges to current master with on the CDF with CDF and current master with the ACR message that CDF will belong to same session;
Step S12: the 2nd CDF judges that whether the relevant ACR message of same session has collected completely, if collect completely, changes step S13; Complete as if not collecting (such as, disappearance Stop ACR or InterimACR), change step S14;
Step S13: if setting the complete ACR message that belongs to same ticket of collection in the time limit, then relevant Start ACR, InterimACR, the Stop ACR of the related same session of the 2nd CDF constructs complete CDR, and sends to CGF by the Ga interface;
Step S14: if waiting for surpassing sets the time limit, ACR does not collect complete yet, and the 2nd CDF constructs imperfect CDR, and sends to CGF by the Ga interface;
Based on above-mentioned steps, if when the 2nd CDF does not construct CDR, FailBack may take place, active link between CTF and the CDF can switch to a CDF again, after the 2nd CDF detected and oneself was stand-by state this moment, the ACR message of oneself not constructing CDR is sent to the CDF of current main usefulness, to construct complete CDR.
The method of the raising ticket structural integrity that proposes based on the present invention, the present invention also proposes a kind of CDF that can improve the ticket structural integrity, as shown in Figure 5, this CDF comprises: link establishment module, state confirmation module, ACR cache module, ACR forwarding module, CDR constructing module.
The link establishment module is used for setting up link with the CDF of opposite end by handshake;
The state confirmation module is used for passing through the definite active and standby state of using each other of activestandby state notification message with the CDF of opposite end;
The ACR cache module is used for receiving and buffer memory ACR message, when the ACR message sink relevant with same session is complete it is submitted to the CDR constructing module;
The ACR forwarding module is used for the CDF that ACR forwards after masterslave switchover takes place that the incomplete and same session of ACR cache module buffer memory is relevant is given the opposite end;
The CDR constructing module is used to construct CDR, and it is transmitted to CGF.
Preferably, described CDR constructing module set judge in the time limit the relevant ACR message of described and same session whether collected complete, complete as if collection in the setting time limit, then construct complete CDR, otherwise construct incomplete CDR.
The listed IMS network element and the ACR message of transmission in the above step, special case of the present invention just, in fact, all network elements of IMS and all conversation-based charging messages all are fit to the present invention.
In sum, adopt the inventive method, in the IMS network, when FailOver and FailBack take place, can guarantee that the ACR message that same session is relevant sends on certain specific CDF, significantly reduce the generation of imperfect CDR, reduce the possibility of operator's business revenue loss.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims (10)

1. a method that improves the ticket structural integrity is characterized in that, comprising:
Before masterslave switchover takes place, the master will not collect complete charging request (ACR) message buffering relevant with same session in this locality with charging data function (CDF);
After masterslave switchover took place, former master did not collect the complete ACR forwards relevant with same session to the current main CDF that uses with CDF with described;
Described former master constructs ticket (CDR) with CDF or described current main complete situation with the CDF basis ACR message relevant with same session.
2. method according to claim 1 is characterized in that, before masterslave switchover takes place, also comprises the main step that is used to transmit the link of the relevant ACR message of described incomplete and same session with CDF and standby CDF foundation.
3. method according to claim 1 and 2, it is characterized in that, described former master judges whether the relevant ACR message of described and same session has collected complete with CDF with CDF or described current master in the setting time limit, if in the setting time limit, collect complete, then construct complete ticket, otherwise construct incomplete ticket.
4. method according to claim 1 is characterized in that, before masterslave switchover takes place and afterwards, also comprises former main with CDF and current main with confirming each other active and standby step with state by the activestandby state notification message between the CDF.
5. a system that improves the ticket structural integrity is characterized in that, comprising:
The master uses CDF, is used for receiving and buffer memory ACR message;
Standby CDF, being used for taking over when masterslave switchover takes place the master becomes the current main CDF that uses with CDF;
Before masterslave switchover takes place, the master will not collect the complete ACR message buffering relevant with same session in this locality with CDF; After masterslave switchover took place, former master did not collect the complete ACR forwards relevant with same session to the current main CDF that uses with CDF with described; Described former master constructs ticket with CDF or described current main complete situation with the CDF basis ACR message relevant with same session.
6. system according to claim 5 is characterized in that, and is before masterslave switchover takes place, described main with setting up the link that is used to transmit the relevant ACR message of described incomplete and same session between CDF and the standby CDF.
7. according to claim 5 or 6 described systems, it is characterized in that, described former master judges whether the relevant ACR message of described and same session has collected complete with CDF with CDF or described current master in the setting time limit, if in the setting time limit, collect complete, then construct complete ticket, otherwise construct incomplete ticket.
8. system according to claim 5 is characterized in that, and is before masterslave switchover takes place and afterwards, described former main with CDF and current main with confirming each other the active and standby state of using by the activestandby state notification message between the CDF.
9. a CDF is characterized in that, comprising:
The link establishment module is used for setting up link with the CDF of opposite end;
The state confirmation module is used to confirm the active and standby state of using of the CDF of self and opposite end;
The ACR cache module is used for receiving and buffer memory ACR message, when the ACR message sink relevant with same session is complete it is submitted to the CDR constructing module;
The ACR forwarding module is used for the CDF that ACR forwards after masterslave switchover takes place that the incomplete and same session of ACR cache module buffer memory is relevant is given the opposite end;
The CDR constructing module is used to construct CDR, and it is transmitted to Charging Gateway Functionality (CGF).
10. CDF according to claim 9, it is characterized in that, described CDR constructing module set judge in the time limit the relevant ACR message of described and same session whether collected complete, complete as if collection in the setting time limit, then construct complete CDR, otherwise construct incomplete CDR.
CN201010140409.5A 2010-03-18 2010-03-18 Method and system for improving bill record construction integrity and charging data function Active CN102196397B (en)

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PCT/CN2010/076474 WO2011113261A1 (en) 2010-03-18 2010-08-30 Method and system for improving construction integrity of phone bill and charging data function (cdf) thereof

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