CN101179403B - System and method for conveying fee counting data recording - Google Patents
System and method for conveying fee counting data recording Download PDFInfo
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- CN101179403B CN101179403B CN2006101689125A CN200610168912A CN101179403B CN 101179403 B CN101179403 B CN 101179403B CN 2006101689125 A CN2006101689125 A CN 2006101689125A CN 200610168912 A CN200610168912 A CN 200610168912A CN 101179403 B CN101179403 B CN 101179403B
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Abstract
A system and method for transmitting charging data records (CDR) for the settlement of the services provided by an IP Multimedia Subsystem (IMS).The method provides an indication to remove fields in a simplified partial CDR, and also provides an improved redundancy mechanism for transmitting partial CDRs.
Description
Technical field
The present invention relates to a kind of telecommunication system and method.Especially, the present invention relates to be used for to transmit system and method in order to the charging data record (CDR) that the service of being given system (IM) by internet protocol multimedia and providing is settled accounts.
Background technology
3GPP version 6 standard definitions the offline charging architecture, relate to the clearing service that IMS network 100 uses to provide.
Referring to Fig. 1, the offline charging architecture comprises charging triggering function (CTF) 110, charging data function (CDF) 120, Charging Gateway Functionality (CGF) 130 and clearing territories (BD) 140.Person of skill in the art will appreciate that BD 140 can also be settlement system and/or clearing Mediation Device.
CTF 110 generates charging event through the utilization of monitor network resource.CTF 110 receives information from various service units.This information is including, but not limited to relating to the charge information that is offered various users' service by service unit 105.CTF 110 is focuses, is used to collect the charging event that belongs to relevant with service unit 105 and the charge information of chargeable session, this charge information is assembled into chargeable session and charging event, and chargeable session and charging event are sent to CDF 120.Chargeable session and charging event are well-known in the art.One of ordinary skill in the art will readily recognize that CTF 110 generally includes book keeping operation tolerance collecting function and book keeping operation data forwarding function.
CDF 120 receives chargeable session and charging event via Rf interface from CTF 110.CDF 120 uses the information in chargeable session and the charging event that is included in, and makes up and/or revise charging data record (CDR).CDF 120 transmits CDR at least one CGF 130 via interface Ga then.
CGF 130 is as the gateway between IMS network 100 and the BD 140.CGF130 uses the Bx interface that CDR is delivered to BD 140.
In case CDR is received by BD 140, BD 140 just handles CDR and generates subscriber's account.
In based on the session of chargeing, when being received, CDF 120 opens CDR when initial charging event (that is the incident of, specifying chargeable session to begin).In response to receiving interim charging event, this incident can take place during chargeable session, and CDF 120 interpolation information are in the CDR that opens.CDF 120 can close CDR because of a variety of causes then.Closing of CDR can be based on the configuration of CDF 120.For example, CDF 120 can close the CDR:CDR time restriction based on following one or more reasons; The CDR capacity limit; The charging condition changes restriction; The termination of user's session (that is, receiving the final charging event of describing the chargeable session termination); With enforcement restriction (for example, memory size).
If CDF 120 closes CDR, but chargeable session remains valid, and then follow-up CDR is opened.Therefore the purpose in order to charge possibly need a plurality of " portion C DR " fully to describe chargeable session.Like this, the reception of the opening and closing of CDR and charging event can take place asynchronously.
The form of the simplification of use portion C DR has reduced the size of portion C DR.The form of the simplification of portion C DR has been removed unnecessary duplicate message from portion C DR.The form of the simplification of portion C DR also comprises the information that former CDR is become current C DR except indispensable information.According to 3GPP version 6 standards, only indispensable CDR field is " record type ".Like this, the information of in the simplification form of portion C DR, removing can according to before the reconstruct of portion C DR field.
Two forms of following portion C DR are described in 3GPP version 6 standards usually.First form is called qualified portion C DR (FQPC) fully, is the portion C DR that comprises whole group CDR field.Second form is called the portion C DR (RPC) of simplification, is the portion C DR that simplifies form, and it comprises indispensable field (M) and the variation that took place in any other field with respect to former portion C DR.
Although 3GPP version 6 standard definitions above offline charging architecture, and general description two kinds of forms of portion C DR, this standard does not have understanding and/or solves and implement and the relevant problem of transmission RPC.Particularly; 3GPP version 6 standards fail to indicate the assembly that receives RPC how can in the RPC that receives, identify field removal and/or that simplify; And if the assembly that receives RPC also do not receive former FQPC, how this assembly can be according to RPC reconstruct FQPC.
Notice equally, in 3GPP 32.295 standards, have CDR conveyer mechanism redundant between CDF and the CGF.This redundancy scheme has improved the conveying of the CDR from CDF to CGF.Yet when using the redundancy scheme of in the 3GPP32.295 standard, describing, the RPC of session can arrive different CGF.Like this, the portion C DR that CGF has no alternative but to comply and sends before other CGF retrievals, the RPC that recovers to receive.Yet where the portion C DR that sends before CGF possibly not know is positioned at, thereby the method for the RPC that recovery receives is inefficent.
Summary of the invention
Example embodiment of the present invention provides the method that transmits CDR among a kind of IMS.This method may further comprise the steps: the field of portion C DR and the field of current portion C DR relatively; For each field that is not included in the former portion C DR among the current portion C DR, the indication of the removal among the current portion C DR is provided; And send current portion C DR.
Another one example embodiment of the present invention provides a kind of method that in internet protocol multimedia subsystem (IMS), transmits charging data record (CDR).This method may further comprise the steps: send the CDR to the of a first CGF; Determine whether that a CGF still can be in order to receive second portion CDR; If it is available that a CGF is confirmed as, send second portion CDR to the CGF as the portion C DR that simplifies; If it is unavailable that a CGF is confirmed as, send second portion CDR to the two CGF as qualified fully portion C DR.
Another one example embodiment of the present invention provides a kind of system that is used for transmitting at IMS CDR.This system comprises at least one Charging Gateway Functionality CGF, is used to receive CDR; And CDF, be used for the field of the CDR of comparison first and the field of second portion CDR, and, the indication of the removal among the said second portion CDR be provided for each field that is not included in the said CDR of first among the said second portion CDR; And send said second portion CDR to said at least one CGF.
Another one example embodiment of the present invention provide a kind of in IMS the method for reconstruct CDR.This method may further comprise the steps: receive the qualified fully portion C DR and the portion C DR of simplification; The field of the field of the portion C DR of more said simplification and said fully qualified portion C DR; Recovery is omitted from the portion C DR that simplifies and is included in any field in the field of qualified fully portion C DR; And remove the field of the portion C DR that comprises the simplification of removing the field indication.
Description of drawings
Detailed description that provides from below and accompanying drawing, example embodiment of the present invention will become and be more prone to understand, and wherein identical parts represent that with identical Reference numeral parts only provide as diagram, rather than are used to limit the present invention, wherein:
Fig. 1 is the block diagram by the offline charging architecture of 3GPP version 6 standard definitions;
The block diagram of the example logic flow process that the chargeable session by network utilisation of according to the present invention example embodiment of showing Fig. 2 triggers;
The transmission that Fig. 3 shows the example embodiment according to the present invention has the flow chart of method of the CDR of any removal CDR field indication;
Fig. 4 shows the flow chart according to the method for RPC reconstruct FQPC that is used for of according to the present invention example embodiment;
The CDR that is used for the RPC recovery that Fig. 5 shows the example embodiment according to the present invention carries the block diagram of the enhancing of redundancy scheme; With
Fig. 6 shows the flow chart of method of the transmission CDR of the example embodiment according to the present invention.
Embodiment
At first should be noted that; 3GPP version 6 standards mentioned of " background technology " part provide the mechanism that is used for reducing the field that repeats at CDR of first and second portion CDR in front, how not to indicate the CDR field no longer to be required also thereby should from portion C DR, remove but describe.Secondly, in IMS offline charging architecture, the entity relationship between CDF and the CGF perhaps is not 1:1.For example, if a CGF can not be arrived, so one or more CDR will send to the 2nd CGF.Therefore, the portion C DR of session possibly arrive different CGF.Yet 3GPP version 6 standards do not provide any relevant guidance that when the RPC sequence arrives different CGF, how RPC is reverted to FQPC.
Example embodiment of the present invention has been recognized the problems referred to above and corresponding solution is provided.These example embodiment will be described with reference to figure 2-4.
Fig. 2 shows the block diagram by the example logic flow process of the chargeable session triggering of network utilisation, and chargeable session can cause generating the bill of network utilisation.Especially, Fig. 2 shows the example logic flow process between CTF 210, CDF 220, CGF 230 and the BD 240.
As shown in Figure 2, CTF 210 produces the continuous book keeping operation request (ACR) that CDF 220 carries out chargeable session that is sent to.ACR is well-known in the art.CTF 210 guarantees that also all ACR are routed to identical CDF 220.
In this instance, CDF 220 is activated by RPC, thereby is configured in order to support RPC.Further, CDF 220 is configured to make that the CDR of first of IMS session is FQPC, and the ensuing portion C DR that sends to public CGF 230 is RPC.Public CGF 230 is activated by RPC equally, in this instance, is configured in order to all RPC are reverted to the FQPCs of their correspondences.FQPC is sent to BD 240 then, can generate the bill of the charging event that is used for network utilisation therein.
Based on the top ground example logic flow process of describing, two example embodiment of the present invention will be described now.First example embodiment relates to first aspect of the present invention, and " indication of the CDR field of removal " is provided.Next second example embodiment of describing relates to second aspect of the present invention, and relates to " recovering the enhancing that the CDR of RPC carries redundancy scheme ".
The indication of the CDR field of removing
As stated, RPC comprises all indispensable fields (M), and only with before relevant any other field of portion C DR in change.The field of removing is the CDR field that no longer needs among the portion C DR, and the field of simplifying is the field that needs among the portion C DR, but identical with the field of previous portion C DR.For example, if the CDR FQPC of first has A, B, C and D field, second portion CDR has C, D and E field.Describe criterion according to RPC, the RPC of second portion CDR should be registered as A (removal), B (removal), E.In this instance, A and B are the fields of removing, and C and D are the fields of simplifying.The field of removing be use among the former portion C DR but in current portion C DR no field, and all be used among former portion C DR of field that simplifies and the current portion C DR, save record size thereby can be simplified because field value is identical.
Example embodiment of the present invention provides the indication of the CDR field of removing.Because the CDR field of removing is included among the RPC with indication together, and the field of simplifying is omitted in RPC, thus the CGF 230 and/or the BD 240 that receive RPC easily identification field be field of simplifying or the field of removing.It is very important distinguishing the field of removing with simplifying between convalescence at RPC, because the field of removing is not included among the FQPC of recovery, and the field of simplifying must be included among the FQPC of recovery.
The ASN.1 coding rule is deferred in the indication of the removal field of example embodiment according to the present invention.Usually, encoding of a data value should comprise four parts that occur by following order: identifier eight bit byte (coding of ASN.1 label); The length eight bit byte; The content eight bit byte; With the end of text eight bit byte.Be pointed out that more the end of text eight bit byte does not occur, only if the value of length eight bit byte needs the end of text eight bit byte to occur.The example embodiment according to the present invention only has identifier eight bit byte and length eight bit byte to be comprised in the cdr logging for removing field, so that field is removed in identification, and the length eight bit byte is 0.
The transmission that Fig. 3 shows the example embodiment according to the present invention has the flow chart of method of the CDR of any removal CDR field indication.This method is carried out by the CDF220 shown in Fig. 2.
As shown in Figure 3, the CDR field of portion C DR and the CDR field of current portion C DR before CDF 220 compares in step S200.Then CDF 220 in step S210, determined whether any CDR field be included in before among the portion C DR, and be not included among the current portion C DR.If there is field to be included among the former portion C DR; And be not included among the current portion C DR; At step S220, CDF220 inserts in current portion C DR and removes the field indication, before being included in indication among the portion C DR but the deletion of the field of from current portion C DR, removing.Then handle and proceed to step S230.Optional, if CDF 220 confirms not remove field at step S210, flow chart is directly to step S230.
At step S230, the field among the current portion C DR of fields match before CDF 200 determines whether to be included among the portion C DR.The field of coupling can be simplified.Accordingly, at step S240, if CDF 220 defines the field of coupling, the field of the coupling that CDF 220 simplifies, thus from current portion C DR, omit the field of mating.CDF 220 sends current portion C DR as the portion C DR that simplifies at step S250 then.Optional, if CDF 220 confirms do not have matching field between former portion C DR and the current portion C DR, flow chart directly proceeds to step S250 from step S230, CDF220 sends current portion C DR.
Because the above example embodiment of the present invention provides the indication of removing field among the RPC; Recovery component such as the CGF among Fig. 2 230 can be distinguished between the field of removing field and simplification easily, and can accurately recover FQPC according to the RPC that receives.
Fig. 4 is the example embodiment that is used for according to the method for RPC reconstruct FQPC.Method shown in Fig. 4 can be carried out by CGF230 for example shown in Figure 2.
At step S300, CDF230 receives the FQPC that is followed by RPC.FQPC can be through using the FQPC that receives in the past as template and according to the RPC reconstruct that receives.At step S310, restructuring procedure is by relatively RPC and FQPC field begin.At step S320, in RPC, be omitted and any field of appearing at FQPC is resumed in RPC.At last, at step S330, comprise that any field of removing the field indication is removed fully from RPC, thereby the reconstruct FQPC corresponding to the RPC that receives at step S300 is provided.
Method shown in the application drawing 4, the CGF230 that receives FQPC1 and RPC2 can use FQPC1 as template, according to RPC2 reconstruct FQPC2.It is to be noted that restructuring procedure is an order, thereby FQPC3 only can be after according to RPC2 reconstruct FQPC2, according to reconstruct among the RPC3.
The example embodiment of more than describing has been stressed to comprise benefit and the importance of removing the field indication, and has been applicable to RPCs.
The CDR of reconstruct RPC carries the enhancing of redundancy scheme
With reference now to Figure 4 and 5, the enhancing of the CDR conveying redundancy scheme of RPC recovery is described.
Referring to Fig. 5, the one or more transmitting section CDRs of CDF 220 in a CGF 233, the 2nd CGF 235 and the 3rd CGF 237.
According to example embodiment of the present invention, CDF 220 each FQPC rather than RPC of sending, portion C DR is sent to different CFG.When transmitting a series of portion C DR of IMS session, if because a CGF 233 can not continue receiving unit CDR, portion C DR is sent to the 2nd CGF235, and the CDR of first that sends to the 2nd CGF 235 so should be FQPC.Similarly, if the 2nd CGF 235 can not continue receiving unit CDR, and a CGF 233 still can not receiving unit CDR, and CDF 200 is session transmitting section CDR to the three CGF 237 so.Again, the CDR of first that is sent to the 3rd CGF 237 is FQPC.Because each CDR of first that receives by among a CGF 233, the 2nd CGF 235 and the 3rd CGF 237 is FQPC,, and needn't get in touch other CGF so each CGF can easily revert to corresponding FQPC with the RPC that receives after any.FQPC is forwarded to BD240 by a CGF 233, the 2nd CGF 235 and the 3rd CGF 237 then.
Referring to the instance of describing among Fig. 5, wherein eight of session portion C DR are sent to three different CGF 233,235 and 237.At first, in this instance, the connection between a CDF220 and the CGF 233 is effectively, the CDR to the of the first CGF233 that CDF 220 transmits as FQPC1.Because the connection between said CDF 220 and the CGF 233 is remained valid, so second portion CDR to the CGF233 that CDF 220 transmits as RPC2.The one CGF233 recovers second portion CDR through relatively RPC and the FQPC of the portion C DR of reception in the past.The FQPC of the second portion CDR that obtains, promptly FQPC2 is sent to BD 240.
Instance as shown in Figure 5 transmits after the second portion CDR, and the connection between a CDF220 and the CGF233 becomes unavailable.Like this, CDF 220 sends next portion C DR to the two CGF 235 as FQPC3.CDF 220 sends the 4th portion C DR to the two CGF 235 as RPC4.The 2nd CDF recovers the RPC of the 4th portion C DR, obtains corresponding FQPC4, and FQPC4 can be sent to BD 240.
In the instance of Fig. 5, the connection between CDF220 and the 2nd CGF235 becomes unavailable then.Accordingly, CDF 220 sends the 5th portion C DR to the three CGF 237 as FQPC5, next is that the 6th portion C DR is transmitted as RPC6.The 6th portion C DR is recovered by CGF 237, to obtain the FQPC of the 6th portion C DR, i.e. FQPC6.
If the connection between CDF 220 and the 3rd CGF 237 becomes unavailable; And the connection between a CDF 220 and the CGF233 is available; CDF 200 sends the 7th portion C DR to the CGF233 as FQPC7 so, and sends the 8th portion C DR to the CDG233 as RPC8.
In the instance of describing in the above, RPC2, PRC8, RPC4 and RPC6 can easily recover, because available among their the last portion C DR FQPC1, FPQC7, each comfortable identical CGF of FPQC3 and FPQC5.
What Fig. 6 showed according to the present invention example embodiment carries out the flow chart of the method that transmits CDR by CDF, and this method is consistent with above-mentioned instance referring to Fig. 5 elaboration.
At step S100, CDF 220 receives the accounting information of IMS session from CTF, and makes up portion C DR.At step S105, CDF 220 sends the CDR of first as FQPC to CGF.
At step S110, CDF 220 confirms whether portion C DR subsequently can be passed to identical CGF.If identical CGF is unavailable, shown in step S115 in, CDF 220 is delivered to different CGF as FQPC with portion C DR subsequently.In step S120, CDF220 determines whether still to have the portion C DR of session not to be sent to CGF then.If there is additional portion C DR to be transmitted, the flow chart among Fig. 6 turns back to step S110.Yet if last portion C DR has been sent to CGF, this method finishes so.
In addition, if at step S110, CDF 220 confirms that portion C DR subsequently are the same with the portion C DR of transmission in the past, can be sent to identical CGF, portion C DR so subsequently shown in step S125 in be sent to identical CGF as RPC.After the step S125, CDF 220 determines whether still to have the portion C DR of session not to be sent to CGF at step S130.If there is additional portion C DR to be transmitted, the flow chart among Fig. 6 turns back to step S110.Yet if last portion C DR has been sent to CGF, this method finishes so.
Above-mentioned example embodiment of the present invention obviously can change aspect a lot of to some extent.Such variation is not thought and is deviated from mutually with the present invention, and all such modifications all should comprise within the scope of the invention.
Claims (10)
1. method that in internet protocol multimedia subsystem IMS, transmits charging data record CDR comprises:
Send the CDR of first to the first Charging Gateway Functionality CGF (233);
Confirm whether a said CGF keeps can be used for receiving second portion CDR;
If it is available that a said CGF is confirmed as, then send said second portion CDR to the portion C DR of a said CGF as simplification; With
If it is unavailable that a said CGF is confirmed as, then send said second portion CDR to the two CGF (235) as complete qualified portion C DR.
2. according to the process of claim 1 wherein that the said CDR of first is complete qualified portion C DR.
3. according to the process of claim 1 wherein that the said CDR of first is the portion C DR that simplifies.
4. according to the method for claim 1, further comprise:
Receive the accounting information of IMS session from charging triggering function CTF (210); With
Make up the said CDR of first according to said accounting information.
5. according to the method for claim 1, further comprise:
The field of the field of the more said CDR of first and said second portion CDR;
In said second portion CDR,, each field that is not included in the CDR of first among the said second portion CDR removes indication for providing.
6. system that is used for transmitting at internet protocol multimedia subsystem IMS charging data record CDR comprises:
At least one Charging Gateway Functionality CGF (230) is used to receive CDR; And
Charging data function CDF (220); Be used for the field of the CDR of comparison first and the field of second portion CDR; In said second portion CDR; Remove indication for each field that is not included in the CDR of first among the said second portion CDR provides, and send said second portion CDR to said at least one CGF.
7. according to the system of claim 6, wherein said second portion CDR omits the field of the second portion CDR that the field with the said CDR of first is complementary, and send said second portion CDR to said at least one CGF as the portion C DR that simplifies.
8. according to the system of claim 6, the wherein said CDR of first is complete qualified portion C DR.
9. according to the system of claim 6, the wherein said CDR of first is the portion C DR that simplifies.
10. according to the system of claim 6, wherein said at least one CGF comprises a CGF and the 2nd CGF; With
Said CDF sends the said CDR of first to a said CGF; Confirm whether a said CGF keeps can be used for receiving second portion CDR; If a said CGF is confirmed as available; Then send said second portion CDR to a said CGF as the portion C DR that simplifies, and if a said CGF be confirmed as unavailable, then send said second portion CDR to said the 2nd CGF as qualified portion C DR fully.
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| CN2006101689125A CN101179403B (en) | 2006-09-29 | 2006-09-29 | System and method for conveying fee counting data recording |
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| CN2006101689125A CN101179403B (en) | 2006-09-29 | 2006-09-29 | System and method for conveying fee counting data recording |
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| CN101179403A CN101179403A (en) | 2008-05-14 |
| CN101179403B true CN101179403B (en) | 2012-04-04 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731811A (en) * | 2004-08-04 | 2006-02-08 | 华为技术有限公司 | Intercommunication method for information transmission in data flow charge based on service |
| CN1735024A (en) * | 2004-08-10 | 2006-02-15 | 华为技术有限公司 | Charging information processing method based on service data flow charge |
| CN1809062A (en) * | 2004-11-30 | 2006-07-26 | 朗迅科技公司 | IMS gateway systems and methods for online charging in ims networks |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731811A (en) * | 2004-08-04 | 2006-02-08 | 华为技术有限公司 | Intercommunication method for information transmission in data flow charge based on service |
| CN1735024A (en) * | 2004-08-10 | 2006-02-15 | 华为技术有限公司 | Charging information processing method based on service data flow charge |
| CN1809062A (en) * | 2004-11-30 | 2006-07-26 | 朗迅科技公司 | IMS gateway systems and methods for online charging in ims networks |
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| CN101179403A (en) | 2008-05-14 |
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Granted publication date: 20120404 Termination date: 20160929 |