CN102196397B - Method and system for improving bill record construction integrity and charging data function - Google Patents
Method and system for improving bill record construction integrity and charging data function Download PDFInfo
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- CN102196397B CN102196397B CN201010140409.5A CN201010140409A CN102196397B CN 102196397 B CN102196397 B CN 102196397B CN 201010140409 A CN201010140409 A CN 201010140409A CN 102196397 B CN102196397 B CN 102196397B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error 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
- G06F11/202—Error 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
- G06F11/2023—Failover techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
- H04L12/1428—Invoice generation, e.g. customization, lay-out, database processing, algorithms for calculating the bill or formatting invoices as WWW pages
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/41—Billing record details, i.e. parameters, identifiers, structure of call data record [CDR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/53—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP using mediation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/70—Administration or customization aspects; Counter-checking correct charges
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/70—Administration or customization aspects; Counter-checking correct charges
- H04M15/74—Backing up
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
- H04M2215/01—Details of billing arrangements
- H04M2215/0164—Billing record, e.g. Call Data Record [CDR], Toll Ticket[TT], Automatic Message Accounting [AMA], Call Line Identifier [CLI], details, i.e. parameters, identifiers, structure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
- H04M2215/70—Administration aspects, modify settings or limits or counter-check correct charges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
- H04M2215/70—Administration aspects, modify settings or limits or counter-check correct charges
- H04M2215/709—Backup
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Databases & Information Systems (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Telephonic Communication Services (AREA)
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
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 functional part, is the important leverage that operator realizes business revenue.Its major function is as described below:
Fig. 1 illustrates the composition of charging functional entity and the relation between them in 3GPP network: charging triggering function (Charging Trigger Function, CTF) be embedded in each network element of 3GPP IMS and (comprise Access Layer network element, service network element, control subsystem) in, the function that it mainly realizes is, according to the service condition of the Internet resources monitored, carry out the collection of charge information, and be sent to charging data function (Charging Data Function, CDF) by Rf interface (Offline ChargingReference Point); The major function of CDF is, receive the charging request message (Accounting Request, ACR) that CTF sends, be configured to charging CDR, and be sent to Charging Gateway Functionality (Charging GatewayFunction, CGF) by Ga interface; The major function of CGF is, carries out store and management, and by Bx interface, CDR file is sent to billing domain (Billing Domain, BD) to the CDR receiving CDF transmission.
Consider the importance of metering data, when CTF and CDF transmits charging message, 3GPP proposes a kind of mechanism reliably, as shown in Figure 2, a CTF is connected with two CDF, one of them CDF is as primary CDF (First CDF), and another CDF is as CDF for subsequent use (Second CDF).CTF is first dealt into ACR message on primary CDF, and when producing fault with primary CDF link or interrupt, CTF is just dealt into (this process is referred to as FailOver) on CDF for subsequent use ACR message.In follow-up ACR message transfer process, if CTF detects to recover with primary link, then again ACR message is sent to (this process is referred to as FailBack) on primary CDF.When the link of CTF and active and standby CDF all interrupts, CTF will have certain caching capabilities, ensures that ACR data are not lost.Primary CDF and CDF for subsequent use can go out charging CDR according to ACR message constructing, and is sent to CGF node by Ga interface.
In the process that IMS business is carried out, IMS network element carrys out the service condition of recording user to Internet resources, to reach the object of charging by constantly sending ACR message.Such as, in IMS business at first, by sending the beginning of initial accounting request (Start ACR) Message Record IMS session, when IMS session exceedes certain hour or media switching occurs, IMS network element sends interim accounting request (Interim ACR) message; When IMS conversation end, transmission is stopped accounting request (Stop ACR) message by IMS network element.For the IMS business of non-session class, IMS network element sends EventACR.CDF, when constructing ticket, associates same session relevant Start ACR, Interim ACR and Stop ACR, is configured to a ticket and exports.(such as, lose Stop ACR) when a part of ACR that same ticket is relevant loses, CDF, when constructing ticket, can only export an incomplete CDR.When exporting incomplete CDR, probably cause this IMS session cannot charging (such as, crucial Start ACR or StopACR lacks, and to cause in CDR the key messages such as sessionless duration).
Known by introducing above, when the link down of CTF and primary CDF, during by link switching to CDF for subsequent use, if now there is a lot of ongoing IMS session, so, the ACR that the same session that relevant IMS network element produces is relevant can be sent on primary CDF and CDF for subsequent use respectively, and CDF will be caused like this to construct incomplete CDR.When CTF detect primary CDF link-recovery again by link switching to primary CDF time, situation is similar, will cause producing incomplete CDR equally.That is, when FailOver and FailBack occurs, occur causing a large amount of imperfect CDR.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 the CDF that improve ticket structural integrity, for solving the ACR information drop-out that may cause structure ticket when masterslave switchover occurs CDF, cause the technical problem producing a large amount of imperfect ticket.
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, propose a kind of method improving ticket structural integrity, the method comprises:
Before generation masterslave switchover, primary charging data function (CDF) will not collect complete accounting request (ACR) message buffering relevant to same session in this locality;
After generation masterslave switchover, former primary CDF does not collect the complete ACR message relevant to same session be transmitted to current primary CDF by described;
Described former primary CDF or described current primary CDF constructs ticket (CDR) according to the complete situation of the ACR message relevant to same session.
Further, before generation masterslave switchover, also comprise primary CDF with CDF foundation for subsequent use for transmitting the step of the link of the described incomplete ACR message relevant with same session.
Further, described former primary CDF or described current primary CDF judges within the setting time limit whether the described ACR message relevant to same session has collected complete, if collect complete within the setting time limit, then constructs complete ticket, otherwise constructs incomplete ticket.
Further, before and after generation masterslave switchover, the step being confirmed standby usage state each other between former primary CDF and current primary CDF by activestandby state notification message is also comprised.
Based on a kind of above-mentioned method improving ticket structural integrity, the present invention also proposes a kind of system improving ticket structural integrity, and this system comprises:
Primary CDF, for receiving and buffer memory ACR message;
CDF for subsequent use, becomes current primary CDF for taking over primary CDF when there is masterslave switchover;
Before generation masterslave switchover, set up the link for transmitting the described incomplete ACR message relevant with same session between described primary CDF and CDF for subsequent use, primary CDF will not collect the complete ACR message buffering relevant to same session in this locality; After generation masterslave switchover, former primary CDF does not collect the complete ACR message relevant to same session be transmitted to current primary CDF by described; Described former primary CDF or described current primary CDF constructs ticket according to the complete situation of the ACR message relevant to same session.
Based on an aspect of of the present present invention, propose a kind of CDF, this CDF comprises:
Link establishment module, for setting up link for transmitting the relevant ACR message of incomplete and same session to the CDF of opposite end;
State confirmation module, for confirming the standby usage state of the CDF of self and opposite end;
ACR cache module, for receiving and buffer memory ACR message, is submitted to CDR constructing module when the ACR message sink relevant to same session is complete;
ACR forwarding module, for being transmitted to the CDF of opposite end after there is masterslave switchover by incomplete relevant with the same session ACR message of ACR cache module buffer memory;
CDR constructing module, for constructing CDR, and is transmitted to Charging Gateway Functionality (CGF).
Further, described CDR constructing module judges within the setting time limit whether the described ACR message relevant to same session has collected complete, if collect complete within the setting time limit, then constructs complete CDR, otherwise constructs incomplete CDR.
Adopt the inventive method, for in IMS network, when there is FailOver and FailBack, can ensure that the ACR message by same session is relevant is sent on certain specific CDF, greatly reduce the generation of imperfect CDR, reduce the possibility of operator's business revenue loss.
Accompanying drawing explanation
Fig. 1 is the billing function structure chart of 3GPP definition;
Fig. 2 is that the charging message of 3GPP definition transmits schematic diagram;
Fig. 3 is the system configuration schematic diagram of the raising ticket structural integrity that the present invention proposes;
Fig. 4 is the method flow diagram of the raising ticket structural integrity that the present invention proposes;
Fig. 5 is the structural representation that can improve the CDF of ticket structural integrity that the present invention proposes.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, by the following examples also with reference to accompanying drawing, the present invention is described in more detail.
The present invention is directed to when current FailOver and FailBack occurs and the technical problem producing a large amount of imperfect CDR is proposed, because FailOver and FailBack can cause switching of the standby usage state between primary CDF and CDF for subsequent use, therefore, FailOver and FailBack occurred between CDF is referred to as CDF masterslave switchover by the present invention.The present invention proposes, the mechanism setting up a safety is needed between primary CDF and CDF for subsequent use, this mechanism can ensure that the ACR that same session is relevant finally can be sent on same CDF (primary CDF or CDF for subsequent use), to avoid the generation of imperfect CDR.For achieving the above object, the present invention proposes a kind of system improving ticket structural integrity, and this system concrete structure as shown in Figure 3.What distinguish with existing system is, the present invention also needs to set up a physical connection between primary CDF and CDF for subsequent use, for the confirmation of the activestandby state between CDF, and when generation masterslave switchover, send incomplete ACR message corresponding for ticket on primary CDF to CDF for subsequent use; This system mainly comprises:
Primary CDF, for receiving and buffer memory ACR message;
CDF for subsequent use, becomes current primary CDF for taking over primary CDF when there is masterslave switchover;
Before generation masterslave switchover, primary CDF will not collect the complete ACR message buffering relevant to same session in this locality; After generation masterslave switchover, former primary CDF does not collect the complete ACR message relevant to same session be transmitted to current primary CDF by described; Described former primary CDF or described current primary CDF constructs ticket according to the complete situation of the ACR message relevant to same session.
Preferably, described former primary CDF or described current primary CDF judges within the setting time limit whether the described ACR message relevant to same session has collected complete, if collect complete within the setting time limit, then constructs complete ticket, otherwise constructs incomplete ticket.
The method flow diagram of the raising ticket structural integrity that accompanying drawing 4 proposes for the present invention, the diagram illustrate the interaction scenario of primary CDF and CDF for subsequent use in FailOver situation and the process to receipt message, concrete steps are as follows:
Step S01: the one CDF sends handshake information to the 2nd CDF;
Step S02: the two CDF sends response message, by setting up physical link between handshake information the one CDF and the 2nd CDF to the first CDF after receiving the handshake information of a CDF transmission; The CDF of initiation handshake information can be a CDF also can be the 2nd CDF, can set up physical link therebetween after the other side's response.
Step S03: the one CDF sends activestandby state notification message to the 2nd CDF, and inform that the other side oneself is current primary CDF, the other side is current CDF for subsequent use;
Step S04: the two CDF sends status confirmation message to a CDF, confirms primary, the stand-by state of two CDF;
Step S05:IMS network element (such as, serving session control function, Server-Call Session ControlFunction, S-CSCF) sends Start ACR message to current primary CDF;
Start ACR message buffering to local, is waited for that ACR that same session is relevant constructs CDR after receiving again by the step S06: the one CDF;
, there is FailOver in the link down of the step S07: the one CDF and CTF;
Step S08:IMS network element (such as, S-CSCF) follow-up Interim ACR and Stop ACR message that same session is correlated with is sent (after FailOver to the 2nd CDF, 2nd CDF is converted into master state, and " primary " and " for subsequent use " state of CDF is dynamic change);
Step S09: the two CDF sends activestandby state notification message to a CDF and former primary CDF, and inform that the other side oneself has become primary CDF, the other side has become CDF for subsequent use;
Step S10: the one CDF sends status confirmation message to the 2nd CDF, confirms primary, the stand-by state of two CDF; Namely the 2nd CDF becomes primary CDF, and a CDF becomes CDF for subsequent use
Step S11: the one CDF by oneself buffer memory belong to same session, the Start ACR message that is not also configured to CDR is sent to the 2nd CDF; Namely, after masterslave switchover occurs two CDF, former primary CDF and current primary CDF will belong to the ACR message coalescing of same session on current primary CDF to the implication of this step;
Step S12: the two CDF judges whether the ACR message that same session is relevant has collected complete, if collect complete, goes to step S13; If do not collect complete (such as, disappearance Stop ACR or InterimACR), go to step S14;
Step S13: if collect the complete ACR message belonging to same ticket within the setting time limit, then the 2nd CDF associates relevant Start ACR, InterimACR, Stop ACR of same session, constructs complete CDR, and is sent to CGF by Ga interface;
Step S14: if wait more than the setting time limit, ACR does not collect complete yet, and the 2nd CDF constructs imperfect CDR, and is sent to CGF by Ga interface;
Based on above-mentioned steps, if when the 2nd CDF does not construct CDR, FailBack may be there is, active link between CTF and CDF can be switched to a CDF again, now the 2nd CDF detects oneself to be after stand-by state, the ACR message oneself not being constructed CDR sends to current primary CDF, to construct complete CDR.
Based on the method for the raising ticket structural integrity that the present invention proposes, the present invention also proposes a kind of CDF that can improve 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.
Link establishment module, for setting up link with the CDF of opposite end by handshake;
State confirmation module, for determining each other by activestandby state notification message standby usage state with the CDF of opposite end;
ACR cache module, for receiving and buffer memory ACR message, is submitted to CDR constructing module when the ACR message sink relevant to same session is complete;
ACR forwarding module, for being transmitted to the CDF of opposite end after there is masterslave switchover by incomplete relevant with the same session ACR message of ACR cache module buffer memory;
CDR constructing module, for constructing CDR, and is transmitted to CGF.
Preferably, described CDR constructing module judges within the setting time limit whether the described ACR message relevant to same session has collected complete, if collect complete within the setting time limit, then constructs complete CDR, otherwise constructs incomplete CDR.
IMS network element listed in above step and the ACR message of transmission, just the present invention's special case, in fact, all network elements of IMS and all conversation-based charging messages, be all applicable to the present invention.
In sum, the inventive method is adopted, in IMS network, when there is FailOver and FailBack, can ensure that the ACR message by same session is relevant is sent on certain specific CDF, greatly reduces the generation of imperfect CDR, reduce the possibility of operator's business revenue loss.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (7)
1. improve a method for ticket structural integrity, it is characterized in that, comprising:
Before generation masterslave switchover, primary charging data function CDF will not collect the complete accounting request ACR message buffering relevant to same session in this locality;
After generation masterslave switchover, former primary CDF does not collect the complete ACR message relevant to same session be transmitted to current primary CDF by described;
Described former primary CDF or described current primary CDF constructs ticket CDR according to the complete situation of the ACR message relevant to same session;
Wherein, when link down FailBack does not occur, construct ticket CDR by described current primary CDF according to the complete situation of the ACR message relevant to same session; When there is FailBack, construct ticket CDR by former primary CDF according to the complete situation of the ACR message relevant to same session;
Described former primary CDF or described current primary CDF judges within the setting time limit whether the described ACR message relevant to same session has collected complete, if collect complete within the setting time limit, then constructs complete ticket, otherwise constructs incomplete ticket.
2. method according to claim 1, it is characterized in that, to not collect the complete ACR message buffering relevant to same session before this locality at primary CDF, described method also comprises primary CDF with CDF foundation for subsequent use for transmitting the step of the link of the described incomplete ACR message relevant with same session.
3. method according to claim 1, is characterized in that, before and after generation masterslave switchover, also comprises the step being confirmed standby usage state each other between former primary CDF and current primary CDF by activestandby state notification message.
4. improve a system for ticket structural integrity, it is characterized in that, comprising:
Primary charging data function CDF, for receiving and buffer memory accounting request ACR message;
CDF for subsequent use, becomes current primary CDF for taking over primary CDF when there is masterslave switchover;
Before generation masterslave switchover, primary CDF will not collect the complete ACR message buffering relevant to same session in this locality; After generation masterslave switchover, former primary CDF does not collect the complete ACR message relevant to same session be transmitted to current primary CDF by described; Described former primary CDF or described current primary CDF constructs ticket according to the complete situation of the ACR message relevant to same session;
Wherein, when link down FailBack does not occur, construct ticket CDR by described current primary CDF according to the complete situation of the ACR message relevant to same session; When there is FailBack, construct ticket CDR by former primary CDF according to the complete situation of the ACR message relevant to same session;
Described former primary CDF or described current primary CDF judges within the setting time limit whether the described ACR message relevant to same session has collected complete, if collect complete within the setting time limit, then constructs complete ticket, otherwise constructs incomplete ticket.
5. system according to claim 4, it is characterized in that, to the complete ACR message buffering relevant to same session do not collected before this locality at primary CDF, between described primary CDF and CDF for subsequent use, setting up the link for transmitting the described incomplete ACR message relevant with same session.
6. system according to claim 4, is characterized in that, before and after generation masterslave switchover, by activestandby state notification message confirmation standby usage state each other between described former primary CDF and current primary CDF.
7. a CDF, is characterized in that, comprising:
Link establishment module, for setting up link with the CDF of opposite end;
State confirmation module, for confirming the standby usage state of the CDF of self and opposite end;
ACR cache module, for receiving and buffer memory ACR message, is submitted to CDR constructing module when the ACR message sink relevant to same session is complete;
ACR forwarding module, for being transmitted to the CDF of opposite end after there is masterslave switchover by incomplete relevant with the same session ACR message of ACR cache module buffer memory;
CDR constructing module, for constructing CDR, and is transmitted to Charging Gateway Functionality (CGF).
Wherein, described CDR constructing module judges within the setting time limit whether the described ACR message relevant to same session has collected complete, if collect complete within the setting time limit, then constructs complete CDR, otherwise constructs incomplete CDR.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010140409.5A CN102196397B (en) | 2010-03-18 | 2010-03-18 | Method and system for improving bill record construction integrity and charging data function |
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010140409.5A CN102196397B (en) | 2010-03-18 | 2010-03-18 | Method and system for improving bill record construction integrity and charging data function |
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| CN102196397A CN102196397A (en) | 2011-09-21 |
| CN102196397B true CN102196397B (en) | 2015-06-03 |
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| CN201010140409.5A Active CN102196397B (en) | 2010-03-18 | 2010-03-18 | Method and system for improving bill record construction integrity and charging data function |
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| WO (1) | WO2011113261A1 (en) |
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| US9716798B2 (en) | 2014-09-08 | 2017-07-25 | At&T Intellectual Property I, L.P. | ACR buffering in the cloud |
| KR20240021915A (en) * | 2021-06-24 | 2024-02-19 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | Blockchain-based integrity protection for CDR |
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| CN1984120A (en) * | 2006-05-15 | 2007-06-20 | 华为技术有限公司 | Method for assuring bill document and primary data consistence during the process of dual system switch |
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| US8010082B2 (en) * | 2004-10-20 | 2011-08-30 | Seven Networks, Inc. | Flexible billing architecture |
| CN101286862B (en) * | 2007-04-09 | 2012-07-04 | 中兴通讯股份有限公司 | Method for synchronizing and switching multicast service between main and standby in access device |
| CN101335690A (en) * | 2007-06-29 | 2008-12-31 | 朗迅科技公司 | Seamless redundant system for IP communication network |
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2010
- 2010-03-18 CN CN201010140409.5A patent/CN102196397B/en active Active
- 2010-08-30 WO PCT/CN2010/076474 patent/WO2011113261A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1984120A (en) * | 2006-05-15 | 2007-06-20 | 华为技术有限公司 | Method for assuring bill document and primary data consistence during the process of dual system switch |
| CN101291209A (en) * | 2007-04-17 | 2008-10-22 | 大唐移动通信设备有限公司 | Method and apparatus for data synchronization |
| EP2157729A1 (en) * | 2007-04-30 | 2010-02-24 | Huawei Technologies Co., Ltd. | Service processing method, apparatus of charging system and charging system |
| CN101123514A (en) * | 2007-09-14 | 2008-02-13 | 中兴通讯股份有限公司 | A billing method in IP multimedia subsystem network |
| CN101309334A (en) * | 2008-07-15 | 2008-11-19 | 中兴通讯股份有限公司 | Charging method of number portable service in IP multimedia sub-system |
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| Publication number | Publication date |
|---|---|
| WO2011113261A1 (en) | 2011-09-22 |
| CN102196397A (en) | 2011-09-21 |
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