CN101364882B - Method, system and apparatus realizing off-line charging control - Google Patents
Method, system and apparatus realizing off-line charging control Download PDFInfo
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- CN101364882B CN101364882B CN2007101380775A CN200710138077A CN101364882B CN 101364882 B CN101364882 B CN 101364882B CN 2007101380775 A CN2007101380775 A CN 2007101380775A CN 200710138077 A CN200710138077 A CN 200710138077A CN 101364882 B CN101364882 B CN 101364882B
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Abstract
The inventive embodiment discloses a method for achieving offline charging control. The method comprises the following steps: determining that offline charging is required for a current service by a policy control and charging rule function entity (PCRF) according to acquired charging information, making policy control and charging (PCC) rules carrying intermediate call list trigger parameters; transmitting the PCC rules to a policy and charging execution entity (PCEF) by the PCRF; and carrying out offline charging of the service by the PCEF according to the PCC rules, and generating an intermediate call list for the charging according to the intermediate call list trigger parameters. The inventive embodiment can simultaneous disclose the system and an apparatus for achieving offline charging control. The method, the system and the apparatus can be used for achieving offline charging for different scenes.
Description
Technical field
The present invention relates to billing technology, particularly a kind of method, system and equipment of realizing offline charging control.
Background technology
In the process of full Internet protocol (IP) network evolution, need solve service quality (QoS) problem end to end, at communication network so that the business that makes customer satisfaction to be provided.IP network can provide various business, as multimedia call, file download and web page browsing etc., different business are to QoS, comprise that bandwidth, time delay, packet loss etc. have different requirements, and the requirement of charging aspect is also different, such as adopting online charging or offline charging, can be according to charge on traffic or according to time-based charging etc.
Existing is under the background of bearing technology with GPRS (GPRS), offline charging mainly comprises two parts, promptly makes a strategic decision and carries out.Wherein decision-making part comprises specifically whether decision-making adopts the relevant parameter of offline charging mode and decision-making offline charging, and this function is mainly finished by GGSN (GGSN).
GGSN can determine some Control Parameter that charging property that carrying is adopted and offline charging produce ticket by the method for configuration.Specifically: operator can be by the method for configuring charging feature (Charging Characteristics) parameter on GGSN, dispose specific scene and adopt specific charging property, as common charging, heat charging, charging and flat rate charging etc. in advance; In addition, the trigger condition that produces interim UDR can also be set on GGSN, such as, trigger condition can be " threshold value of the data traffic of setting ", " threshold value of the time of setting (duration) ", " maximum times that the charging condition of setting changes ", " administrative intervention ", " variation of travelling carriage (MS) time zone ", " GPRS serving GPRS support node (SGSN) changes between public land mobile network (PLMN) " or " variation of wireless access technology " etc.Follow-up, GGSN is according to the Charging Characteristics parameter deexcitation charging data record (CDR) that produces, i.e. the generation of ticket triggers the generation of interim UDR according to the trigger condition that is provided with, and charges according to all tickets of final generation.
Though aforesaid way can be realized offline charging, but this mode exists certain defective, mainly be and charge at different users, different professional and different period: all be based on carrying because have the offline charging strategy that on GGSN, disposes now, can transmit a plurality of business by a carrying, and be to have difference to charge to the different business in the same carrying based on the offline charging that carrying is carried out.; the development trend of 3G network provides service to individuality exactly; formulate different charging regulations at different users; obviously; charging regulation of the prior art is realized by unified configuration on GGSN; promptly all users, all business of inserting APN (APN) are all carried out unified strategy, therefore, existing GGSN decision-making mode can not satisfy the demand of current network development.
In order to satisfy the current techniques growth requirement, defined strategy in the 3rd Generation Partnership Project (3GPP) and chargeed control (PCC) framework.
The PCC configuration diagram of Fig. 1 for defining among the existing 3GPP.As shown in Figure 1, comprise user signing contract information database (SPR), Application Function (AF), policy control and charging regulation function entity (PCRF), strategy in this PCC framework and charge execution entity (PCEF), Online Charging System (OCS), off-line accounting system (OFCS) and various access technology, as wireless lan (wlan), GPRS (GPRS), microwave access global intercommunication network (WiMax) etc.
Wherein, the effect of each functional entity is as follows:
PCRF, be mainly used in finish the strategy decision-making and based on stream functions such as charging control; PCRF is corresponding tactful according to the decision of information such as carrier policy, user contracting data and the current ongoing business of user, and should offer PCEF by the PCC rule by strategy, carries out these strategies by PCEF.
PCEF, be mainly used in the execution of the detection of finishing business data flow, strategy and based on the functions such as charging of stream, this entity carries out that PCRF issues or the strategy of appointment, be exactly detection and the measurement of carrying out business data flow specifically, guarantee the QoS of business data flow, the session management of chain of command etc. is handled and triggered to user's surface current amount.
The data that provide the user to contract to PCRF are provided SPR.
AF is used for dynamically providing to PCRF the session information of application layer business, can also obtain IP-from PCRF and be communicated with the relevant incident of the relevant information of Access Network (CAN) and IP-CAN carrying etc.
OCS, this entity receive the charging event that is produced by charge information in real time, for the subscriber authorisation adequate resources is utilized; In the process of using Internet resources, the user needs constantly to carry out information interaction with OCS, the application available resources; OCS authorizes end, stops the use of user terminal to resource; That is to say that OCS authorizes the user earlier, and then provides resource for it.
OFCS, this entity are used to handle the charge information of the CU Internet resources situation of collecting, and produce ticket, and send the clearing territory (BD) of operator to; Different with OCS, be to provide resource for the user earlier among the OFCS, just clearing charge then.
Interfaces/reference points effect between each functional entity is as follows:
Rx, this reference point is used for issuing application related information by AF to PCRF; PCRF can provide the IP-CAN relevant information and report bearing event etc. to AF by this reference point; This reference point is used the Diameter of network engineering task groups (IETF) definition.
Gx, this reference point makes PCRF can dynamically adjust policy control and charging correlation function that PCEF carries out; PCEF also can provide IP-CAN relevant information to PCRF by this reference point, and reports bearing event etc.; This reference point is used the Diameter of ietf definition equally.
Sp, this reference point is used for asking user signing contract information by PCRF to SPR, so that PCRF formulates corresponding strategy; This interface belongs to privately owned interface at present.
Gy, online credit control is carried out in the charging based on stream that this reference point is used for carrying out between OCS and PCEF.
Gz, this reference point is used for transmission between OFCS and PCEF based on the offline charging information of stream.
Information interaction mode between PCEF shown in Fig. 1 and the PCRF can have two kinds, and promptly PCEF initiates request, and request PCRF issues the PCC rule; Perhaps, PCRF initiatively issues the PCC rule to PCEF.
Fig. 2 is the PCRF that stipulates in the existing PCC framework and the information interactive process schematic diagram of PCEF.As shown in Figure 2, may further comprise the steps:
Step 201: Access Network sends an IP-CAN session to PCEF and sets up request, and the concrete form of this request is relevant with the type of Access Network.
Step 202:PCEF sends a credit control request information (CCR) to PCRF, carries information such as user terminal (UE) sign and IP address in this CCR message.
Step 203:PCRF is according to the information that comprises in the CCR message that receives, and the restriction of user access network, carrier policy, user contracting data and the active user business information of carrying out etc., carry out the PCC rule decision, determine Event triggered (Event-Trigger) tabulation simultaneously.
Step 204:PCRF sends Credit Control Answer message (CCA) to PCEF, carries the PCC rule of generation in this CCA message, optionally can also carry the Event-Trigger tabulation.
Step 205:PCEF loads the PCC rule, and begins to detect the incident in the Event-Trigger tabulation.
Step 206:PCEF sends the IP-CAN session to Access Network and sets up response message.
Step 207:PCEF carries out event detection according to the Event-Trigger that PCRF issues.
Step 208: after the incident that detects took place, PCEF sent the CCR request to PCRF, and report triggering is somebody's turn to do the incident of request, can also carry the relevant information of this incident simultaneously.
Step 209:PCRF carries out the PCC rule decision again, alternatively, redefines the Event-Trigger tabulation.
Step 210:PCRF sends CCA to PCEF and replys, and wherein carries the PCC rule and the Event-Trigger tabulation of reformulating.
Flow process shown in above-mentioned is after initiating the PCC rule request by PCEF, the information interaction flow process between PCEF and the PCRF; Certainly, also can be that PCRF initiatively issues PCC rule and Event-Trigger tabulation to PCEF by re-authenticating request message (RAR); Correspondingly, PCEF loads PCC rule and/or Event-Trigger tabulation in this message after the RAR message that receives the PCRF transmission, and re-authenticates response message (RAA) in response to the PCRF answer.
Fig. 3 is the logical framework schematic diagram of the OFCS shown in Fig. 1.As shown in Figure 3, OFCS mainly comprises charging triggering function (CTF), charging data function (CDF) and charging network management function (CGF) three parts from dividing in logic.Wherein, CTF is used to collect the charge information of the resource that the user uses, and forms charging event and also gives CDF and handle; CDF is used for making up CDRs according to charging event, and sends the CDRs that constructs to CGF; CGF handles CDRs, sends to BD behind the formation CDR file.Shown in Figure 3 only is the logical framework of OFCS, in actual applications, usually CTF and CDF is integrated in the miscellaneous equipment, in GGSN.
Fig. 4 produces and closes the closed procedure schematic diagram for the ticket in the existing offline charging process.The generation flow process of ticket generally includes and creates ticket, produces interim UDR and close three links of final CDR.As shown in Figure 4:
Carry out in the professional process the user, CTF detects charging event, collecting charging information, and sends to CDF; CDF produces a new ticket, and the charging content is logged in this ticket according to the charging event that receives, and promptly creates session, and afterwards, CDF produces a plurality of tickets in proper order, and ticket produces speed and can preestablish;
When satisfying specified conditions, during as shown in Figure 4 CDR trigger condition, CDF can close current ticket, and opens a new ticket, promptly carries out generating interim UDR in the process in business; Here the CDR trigger condition of being mentioned can comprise: reach the variation of SGSN between the threshold value of predefined data traffic, the threshold value that reaches predefined duration, the maximum times that reaches the charging condition variation of setting, PLMN or the variation of wireless access technology etc.;
When the service ending that the user carries out, CDF closes the ticket of current generation;
CGF handles all tickets of this business, produces final CDR, and sends to settlement center and settle accounts.
Though decision-making in the offline charging and implementation have been provided definition in the above-mentioned PCC framework, promptly finish decision making function by PCRF, finish the execution function by PCEF and OFCS.But, to compare with GGSN, the decision making function that PCRF can realize only is the part of GGSN decision making function.Specifically, existing PCRF is handed down to the billing parameter of carrying in the PCC rule of PCEF and only can be used for realizing with making policy decision:
A, the rate of indicating this business datum to adopt, i.e. the fees policy that the business of user's subscription adopts;
The address of B, indicating gage charge system; PCRF can provide first-selected and alternative OFCS address simultaneously for PCEF, when the address of first-selected OFCS is unreachable, can adopt standby OFCS address;
C, indication are adopted online charging or offline charging to the current business data flow, and how to measure offline charging, such as being the duration that needs to measure business data flow, still need measure the flow of business data flow.
As seen, though existing PCC framework possesses certain decision making function, can not solve in the prior art problem that can not charge at different user, different business and difference period that exists when finishing decision-making by GGSN.Because PCRF can not control PCEF effectively according to the charging needs, promptly can not trigger PCEF and generate interim UDR in particular moment.Though flow process shown in Figure 4 has related to the trigger condition of interim UDR, but these trigger conditions all are configured by manual type, and this human configuration can only be accomplished some broad-brush trigger conditions of configuration, such as being configured between 22 in the telephone relation～23 to the preferential period etc., but if at the different charging regulation of different customization, such as in above-mentioned conversation, in 22～23 these time periods, different users being adopted different preferential modes, under the analogue, iff all users in the network being carried out the individual demand configuration, obviously be difficult to realize by manual type.
Summary of the invention
The embodiment of the invention provides a kind of method that realizes offline charging control, can realize offline charging at different scenes.
The embodiment of the invention provides a kind of system that realizes offline charging control, can realize offline charging at different scenes.
The embodiment of the invention provides a kind of PCRF that realizes offline charging control, can realize offline charging at different scenes.
The embodiment of the invention provides a kind of PCEF that realizes offline charging control, can realize offline charging at different scenes.
The technical scheme of the embodiment of the invention is achieved in that
A kind of method that realizes offline charging control, this method comprises:
Policy control and charging regulation function entity PCRF judge the current business needs according to the charge information that gets access to and carry out offline charging, and generate strategy control and charging PCC rule carry the interim UDR trigger parameter in the described PCC rule;
Described PCRF gives strategy with described PCC rule downloading and charges and carry out entity PCEF;
Described PCEF carries out offline charging according to described PCC rule to described business, and generates the required interim UDR that charges according to described interim UDR trigger parameter;
Wherein, the charge information that gets access to of described PCRF comprises: charging policy information, user signing contract information, application message and beared information;
The method that described PCRF obtains described charge information comprises:
Described PCRF accepts the charging policy information of operator's configuration;
Described PCRF obtains described user signing contract information from user signing contract information database SPR, obtain described application message from Application Function AF, obtains described beared information from described PCEF.
A kind of system that realizes offline charging control, this system comprises: entity PCEF is carried out in policy control and charging regulation function entity PCRF and strategy and charging;
Described PCRF, after being used for judging the current business needs and carrying out offline charging according to the charge information that gets access to, generate strategy control and charging PCC rule carry the interim UDR trigger parameter in the described PCC rule, and give described PCEF with described PCC rule downloading;
Described PCEF is used to receive the PCC rule from described PCRF, according to described PCC rule described business is carried out offline charging, and generates the required interim UDR that charges according to described interim UDR trigger parameter;
Wherein, the charge information that gets access to of described PCRF comprises: charging policy information, user signing contract information, application message and the beared information of operator's configuration; Further comprise in this system: user signing contract information database SPR, Application Function AF;
Described SPR is used for providing described user signing contract information to described PCRF;
Described AF is used for providing described application message to described PCRF;
Described PCEF is further used for, and provides described beared information to described PCRF.
A kind of policy control and charging regulation function entity PCRF that realizes offline charging control, this PCRF comprises information acquisition unit, judging unit and regular generation unit;
Described information acquisition unit is used to obtain charge information;
Described judging unit, whether needs carry out offline charging to be used for judging current business according to the charge information of described information acquisition unit, and judged result is sent to described regular generation unit;
Described regular generation unit, be used to receive judged result from described judging unit, if described judged result is for need carry out offline charging, then generation strategy control and charging PCC rule, carry the interim UDR trigger parameter in the described PCC rule, and described PCC rule downloading is given strategy and chargeed execution entity PCEF;
Wherein, described charge information comprises: charging policy information, user signing contract information, application message and beared information;
Described information acquisition unit specifically is used for, accept the charging policy information of operator's configuration, from user signing contract information database SPR, obtain described user signing contract information, from Application Function AF, obtain described application message, from described PCEF, obtain described beared information.
A kind of strategy and charging execution entity PCEF that realizes offline charging control, this PCEF comprises: receiving element and Charging Detail Record unit;
Described receiving element is used to receive policy control that carries the interim UDR trigger parameter and charging PCC rule from policy control and charging regulation function entity PCRF;
Described Charging Detail Record unit is used for according to described PCC rule current business being carried out offline charging, and generates the required interim UDR that charges according to described interim UDR trigger parameter;
In addition, further comprise among the described PCEF: information provides the unit, is used to described PCRF that beared information is provided.
As seen, adopt the technical scheme of the embodiment of the invention, PCRF judges current business according to the charging relevant information that gets access to, and whether needs carry out offline charging, if desired, then formulate the PCC rule, and be handed down to PCEF, carry the interim UDR trigger parameter in the PCC rule; PCEF carries out offline charging according to the PCC rule to current business, produces the required ticket that charges.As seen, in the described scheme of the embodiment of the invention, the various information that PCRF can comprehensively get access to generate the PCC rule, and in the PCC rule, needing to increase corresponding interim UDR trigger parameter by chargeing, PCEF charges at different users and/or different periods with control, and, the PCC rule itself is based on the technology of stream, at the different business based on same carrying, the different PCC rule of generation that can be corresponding has promptly realized the charging to different business.In a word, the described scheme of the embodiment of the invention can realize offline charging at different scenes.
Description of drawings
The PCC configuration diagram of Fig. 1 for defining among the existing 3GPP.
Fig. 2 is the PCRF that stipulates in the existing PCC framework and the information interactive process schematic diagram of PCEF.
Fig. 3 is the logical framework schematic diagram of existing OFCS.
Fig. 4 produces and closes the closed procedure schematic diagram for the ticket in the existing offline charging process.
Fig. 5 is the flow chart of the inventive method embodiment.
Fig. 6 is the flow chart of first preferred embodiment of the inventive method.
Fig. 7 is the flow chart of second preferred embodiment of the inventive method.
Fig. 8 is the composition structural representation of PCRF in the embodiment of the invention.
Fig. 9 is the composition structural representation of PCEF in the embodiment of the invention.
Figure 10 is the composition structural representation of system embodiment of the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
In the embodiments of the present invention, PCRF judges the current business needs according to the charge information that gets access to and carries out offline charging, formulates the PCC rule, carries the interim UDR trigger parameter in this PCC rule; PCRF gives PCEF with this PCC rule downloading; PCEF carries out offline charging according to this PCC rule to current business, and generates the required interim UDR that charges according to the interim UDR trigger parameter.
Fig. 5 is the flow chart of the inventive method embodiment.As shown in Figure 5, may further comprise the steps:
Step 501: on PCRF, carry out the charging policy configuration.
In this step, operator carries out the offline charging policy configurations at situations such as customer service, QoS, customer location, specific periods, on PCRF, determine to carry out the special scenes and the relevant billing parameter of these special scenes of offline charging, as charging regulation etc.
Step 502:PCRF obtains user signing contract information from SRP.
Can comprise in this user signing contract information under user's the signing service, what scene needing to carry out offline charging, charging way, such as, information such as be charged according to time or charge by flow.
Step 503:PCRF obtains application messages such as medium, bandwidth from AF.
Step 504:PCRF obtains bearer related information from PCEF.
Step 502～503 do not have the branch of sequencing.
Step 505:PCRF determines the offline charging strategy of current business flow.
In this step, offline charging strategy, user signing contract information, application message and the beared information of the configuration of the comprehensive operator of PCRF, judge whether current business flow needs to carry out offline charging, carry out offline charging if desired, then determine the offline charging strategy of current business flow according to above-mentioned information, comprise a plurality of billing parameters in this offline charging strategy, as sign commonly used adopt off-line still be the parameter, sign of online charging mode still be the flow parameter of chargeing, the parameter of sign charge system address etc. by the time.
In addition, also will further comprise the interim UDR trigger parameter in the billing parameter of the embodiment of the invention, be used for producing interim UDR: PCRF and comprehensively get access to various charging relevant informations at subsequent process control PCEF, the billing parameter of stipulating in the charging policy according to operator's configuration, as time or flow point, charging regulation etc., and information such as the user who carries in the user signing contract information service attribute of contracting and charging regulation, determine the interim UDR trigger parameter.Such as, the user telephone service of having contracted, this telephone service stipulates that 22 point～23 are the preferential period of conversation; In addition, operator is according to self needs, pre-configured certain following day is because certain cause specific (such as being this operator's place company establishment * anniversary the same day), carry out the whole day preferential strategy of conversing, so, PCRF can generate corresponding interim UDR trigger parameter according to these favor informations of chargeing, follow-up in the PCEF charging process to control, produce interim UDR in above-mentioned these special periods.
Step 506:PCRF generates the PCC rule, and is handed down to PCEF.
PCRF gives PCEF with the offline charging strategy that generates by the PCC rule downloading, because the interim UDR trigger parameter is the billing parameter that increases newly in the embodiment of the invention, so, for realizing the interim UDR trigger parameter being sent to PCEF by the PCC rule, need expand existing Gx interface protocol, such as, the attribute value that can add the control offline charging that can dynamically be formulated by operator in existing PCC rule is to (AVP), and the AVP by this new interpolation carries described interim UDR trigger parameter.
In the Gx interface protocol, be handed down in the message such as CCA, RAR of PCEF at PCRF, carry a charging regulation (Charging-Rule-Install) AVP is installed, this AVP is used for activating, installs or revise a PCC rule, comprising charging regulation definition (Charging-Rule-Definition) AVP, be used to Business Stream definition PCC rule, can carry the interim UDR trigger parameter by in Charging-Rule-DefinitionAVP, adding AVP in the present embodiment.
Interim UDR trigger parameter in the embodiment of the invention comprises: time point (Time-Point) trigger parameter and ticket produce speed control parameter, and wherein ticket produces and can comprise further in the speed control parameter that flow control (Data-Volume-Limit) parameter, duration control (Time-Duration-Limit) parameter and charging condition change control (Max-Num-Charging-Condition-Changes) parameter; Correspondingly, need the AVP of expansion will comprise Time-Point AVP, Data-Volume-Limit AVP, Time-Duration-Limit AVP and Max-Num-Charging-Condition-Changes AVP.As shown in table 1, wherein four represented AVP of bolded section are the new AVP that adds in the present embodiment.
Table one
Certainly, in a certain concrete applied environment, can not use above-mentioned set whole four interim UDR trigger parameter usually, but, can when revising agreement first, just directly set the AVP of these four parameters for fear of agreement is frequently revised; If in certain charging process, only need to use one of them parameter, the AVP of other parameter correspondence is set to empty getting final product so.
Above-mentioned each interim UDR trigger parameter will be given PCEF by the PCC rule downloading, thereby control PCEF generates interim UDR as requested in charging process.Function to these several interim UDR trigger parameter is introduced respectively below:
(1)Time-Point?AVP：
Time-Point AVP is 32 unsigned types, indicated and closed ticket, and the condition-a certain moment that produces new ticket, be defined as follows: when arriving predefined " a certain moment ", just close an ongoing ticket, produce the collection that a new ticket is proceeded charge information simultaneously.In present embodiment,, produce a new ticket simultaneously as long as official hour point in the charging policy of arrival user signing contract information and/or operator's configuration is just closed current ticket immediately.Such as the contracted preferential business of charging of 22 point～23 in the telephone service of, user, " 22 point " and " 23 point " is exactly time point so.
(2) ticket produces speed control parameter:
This parameter is controlled the generation speed of ticket by the trigger condition of control offline charging generation ticket.
A、Data-Volume-Limit?AVP：
Data-Volume-Limit AVP is 32 unsigned types, indicated the upper limit of closing the call bill data flow, when the data traffic of a ticket writing reaches predefined data traffic threshold value, just close this ongoing ticket, produce a new ticket simultaneously.
As can be seen, by reducing or increase the flow of a ticket writing, promptly, can increase or reduce the frequency that produces ticket by adjusting the data traffic threshold value that is provided with.
B、Time-Duration-Limit?AVP
Time-Duration-Limit AVP is 32 unsigned types, has indicated the upper limit of closing the ticket time, when the duration of a ticket writing reaches predefined duration threshold value, just closes this ongoing ticket, produces a new ticket simultaneously.
As can be seen, by reducing or increase the time of a ticket writing, can increase or reduce the frequency that produces ticket.
C、Max-Num-Charging-Condition-Changes?AVP：
Max-Num-Charging-Condition-Changes AVP is 32 unsigned types, indicate the charging condition and changed the upper limit that just needs to produce a ticket several times, when QoS, PLMN id, wireless access technology (RAT) and/or CGI change frequencies such as (CGI) reach the change frequency threshold value that sets in advance, just close current ongoing ticket, produce a new ticket simultaneously.
As can be seen, by reducing or increasing the change frequency threshold value, can increase or reduce the frequency that produces ticket.
Step 507:PCEF carries out offline charging.
In this step, PCEF carries out offline charging according to the PCC rule that receives, that is, and and according to the required ticket of requirement generation charging of the billing parameter of carrying in the PCC rule.Because in step 506, the function to each interim UDR trigger parameter is described in detail, thus in this step about PCEF how according to the requirement of each interim UDR trigger parameter, the content that generates interim UDR in correspondence constantly will repeat no more.
Step 508:PCEF sends to OFCS with the ticket that generates and handles.
Follow-up process of how to charge is a prior art, repeats no more.
Need to prove, when in offline charging strategy, user signing contract information, application message and the beared information mentioned in step 501～504 each changes, whether PCRF will rejudge current business needs to carry out offline charging, if desired, then reformulate the PCC rule, and send to PCEF, promptly re-execute step 505～508.
Have again, if in step 503, the application message that PCRF gets access to shows that the active user carries out more than one business at the same time, PCRF need carry out the flow process shown in 505～508 respectively at different business so, judge respectively promptly whether each business needs to carry out offline charging, and the business that needs carry out offline charging formulated the PCC rule respectively, be handed down to PCEF.
To be described in further detail scheme of the present invention by preferred embodiment below:
Preferred embodiment one:
Fig. 6 is the flow chart of first preferred embodiment of the inventive method.Suppose user in the present embodiment telephone service of having contracted, in one day different periods, have different expenses standards.Such as, the telephone expenses price before 22 is a, is the preferential period between 22 o'clock to 23 o'clock, and the telephone expenses price is b, and the telephone expenses price after 23 is c.So, PCRF need indicate PCEF to produce interim UDR respectively on " 22 point " and " 23 point " these two time points, distinguishing the ticket of different prices, thereby is convenient to the follow-up clearing that gather.As shown in Figure 6, this embodiment may further comprise the steps:
Step 601: operator's configuring charging strategy.
Offline charging strategy in the present embodiment is meant that beyond the business that the user contracts operator carries out the scene and the relevant billing parameter of offline charging according to the needs of the needs configuration of oneself.Such as, 22 point～23 that the user contracts for the preferential period of conversation beyond, operator is defined in a certain special period of festivals or holidays, weekend and/or every day in addition and realizes that telephone expenses are competitively priced.
Step 602～604:PCRF obtains user signing contract information, application message and beared information respectively from SPR, AF and PCEF.
Step 605:PCRF determines the offline charging strategy.
PCRF judges needs according to the charging policy information of the user signing contract information that gets access to, application message, beared information and operator's configuration and carries out offline charging, formulates the offline charging strategy.
Step 606:PCRF gives PCEF with the offline charging strategy of formulating by the PCC rule downloading, wherein carries each billing parameter commonly used, and carries the time point trigger parameter by Time-Point AVP.
Step 607:PCEF carries out offline charging.
After PCEF receives the PCC rule, carry out offline charging, order produces a plurality of charging bills.
Step 608: the time arrives 22 points, and PCEF finishes current ticket, and produces a new ticket.
Owing to carry the time point trigger parameter in the PCC rule that PCEF receives, so PCEF has known in advance when the time arrives the time point of user signing contract information or operator's configuration, need to trigger the generation of new ticket, so in this step, when the time arrives at 22, PCEF finishes current ticket w, and produces a new ticket x; Continuation afterwards produces ticket in proper order.
Step 609: the time arrives 23 points, and PCEF finishes current ticket, and produces a new ticket.
When the time arrived at 23, PCEF finished current ticket y, and produces a new ticket z; Continuation afterwards produces ticket in proper order, until end of conversation.
In step 607～609, PCEF can send to OFCS at any time with the ticket that produces.
Step 610:OFCS gathers clearing to all tickets that receive.
During clearing, because ticket w belongs to the ticket before the preferential period, ticket x and y belong to the ticket in the preferential period, ticket z belongs to the ticket after the preferential period, so, OFCS can be known which period other ticket should belong to, and then all tickets are gathered clearing according to this several critical tickets and time sequencing.
Preferred embodiment two:
Fig. 7 is the flow chart of second preferred embodiment of the inventive method.This embodiment provides under different scenes, and the dialogue per unit area yield speed of giving birth to is carried out difference control.Supposing that operator is pre-configured produced a ticket in every a minute when bandwidth during less than 5Mbps, during greater than 5Mbps, produced a ticket in every b minute; With regard to present embodiment, bandwidth means the situation when service quality will be lower than greater than 5Mbps less than 5Mbps, and the service quality difference that operator provides means the difference of charging rate; And under the situation that high value is chargeed, if device fails will result in greater loss to operator, therefore, need the generation speed of ticket be controlled, promptly under the situation of high value, accelerate ticket and produce speed.As shown in Figure 7, this embodiment may further comprise the steps:
Step 701～704 are similar with step 601～604 shown in Figure 6, repeat no more.
Step 705:PCRF determines the offline charging strategy.
PCRF judges needs according to the charging policy information of the user signing contract information, application message, beared information and the configuration that get access to and carries out offline charging, formulates the offline charging strategy.
Step 706:PCRF gives PCEF with the offline charging strategy of formulating by the PCC rule downloading.
PCRF determines to produce a ticket in every a minute, and formulate corresponding PCC rule when user bandwidth during less than 5Mbps according to the pre-configured strategy of operator, and the Time-Duration-Limit AVP by wherein carries ticket generation speed control parameter; Generally, produced using as default of a ticket in every a minute of correspondence during less than 5Mbps, so can be set to sky among the Time-Duration-Limit AVP.
Step 707:PCEF carries out offline charging.
Step 708: in a certain moment, the user need increase bandwidth, and sending to PCRF increases bandwidth request, and request is increased to bandwidth more than the 5Mbps.
Step 709:PCRF reformulates the PCC rule.
PCRF is according to the pre-configured charging policy of operator, knows that need adjust ticket when bandwidth when user's request is greater than 5Mbps produces speed, so reformulate the PCC rule.
The PCC rule that step 710:PCRF will newly formulate sends to PCEF.
To carry ticket by Time-Duration-Limit AVP in the new PCC rule of formulating and produce speed control parameter, produce a ticket in every b minute with control PCEF.
Step 711:PCEF carries out offline charging.
After receiving new PCC rule, PCEF carries out offline charging according to the requirement of the billing parameter in the new PCC rule.
Preferred embodiment three:
Suppose that the user carries out different business simultaneously in the present embodiment in same carrying, different business is carried out different expenses standards.Such as, the user carries out video calling when watching video TV, the expenses standard of video TV is 0.01 yuan of a per minute, and the standard of visual telephone is 0.15 yuan of a per minute, so, the specific implementation flow process of present embodiment is with the something in common that embodiment two compares, need process shown in step 701 in the execution graph 7～704 equally, but difference is that PCRF need determine each professional corresponding offline charging strategy respectively in the subsequent step, and formulate corresponding PCC rule respectively, be handed down to PCEF; Correspondingly, PCEF carries out offline charging respectively according to different PCC rules.Owing to do not relate to the problem of interim UDR among this embodiment, so, need not to carry out the step of follow-up generation interim UDR in the present embodiment corresponding to Fig. 7.Certainly, if desired by time point or need change adjust the ticket formation speed, only need to carry out corresponding steps and get final product according to the mode of being introduced among preferred embodiment one or two with scene.
Based on said method, the embodiment of the invention provides a kind of PCRF that realizes offline charging control.Fig. 8 is the composition structural representation of PCEF in the embodiment of the invention, and as shown in Figure 8, this PCRF comprises: information acquisition unit 801, judging unit 802 and regular generation unit 803;
Judging unit 802, whether needs carry out offline charging to be used for judging current business according to the charge information of information acquisition unit 801, and judged result is sent to regular generation unit 803;
Can further comprise in the above-mentioned regular generation unit 803: time point trigger parameter generation unit 8031 and/or flow control parameter generating unit 8032 and/or duration Control Parameter generation unit 8033, and/or the charging condition changes Control Parameter generation unit 8034:
Time point trigger parameter generation unit 8031 is used for rise time point trigger parameter, and this time point trigger parameter is carried at is handed down to PCEF in the PCC rule; Flow control parameter generating unit 8032 is used to generate the flow control parameter, and this flow control parameter is carried in the PCC rule is handed down to PCEF; Duration Control Parameter generation unit 8033 is used to generate the duration Control Parameter, and this duration Control Parameter is carried in the PCC rule is handed down to PCEF; The charging condition changes Control Parameter generation unit 8034, is used to generate the charging condition and changes Control Parameter, and should the charging condition change Control Parameter and be carried in the PCC rule and be handed down to PCEF.
The charge information that gets access in the above-mentioned information acquisition unit 801 comprises: charging policy information, user signing contract information, application message and beared information; Information acquisition unit 801 specifically is used for, and accepts the charging policy information of operator's configuration, obtains user signing contract information from SPR, obtains application message from AF, obtains beared information from PCEF.
Judging unit 802 is further used for, if the application message that gets access in the information acquisition unit 801 shows that the user carries out more than one business at the same time, then judging unit 802 judges whether to carry out offline charging at different business respectively, and will be sent to regular generation unit 803 at the judged result of variant business respectively; Rule generation unit 803 is further used for, reception is from the judged result at different business of judging unit 802, carry out the business of offline charging for needs and formulate the PCC rule respectively, wherein carry the interim UDR trigger parameter, and give PCEF the PCC rule downloading.
In addition, judging unit 802 also can be further used for, charging policy in information acquisition unit 801 and/or user signing contract information and/or application message, and/or beared information is when changing, whether need carry out offline charging, and judged result is sent to regular generation unit 803 if rejudging current business; Rule generation unit 803 is further used for, and receives the judged result from judging unit 802, if judged result for need carry out offline charging, then regenerates the PCC rule, wherein carries the interim UDR trigger parameter, and gives PCEF with this PCC rule downloading.
The embodiment of the invention provides a kind of PCEF that realizes offline charging control simultaneously.Fig. 9 is the composition structural representation of PCEF in the embodiment of the invention, and as shown in Figure 9, this PCEF comprises: receiving element 901 and Charging Detail Record unit 902;
Receiving element 901 is used to receive the PCC rule that carries the interim UDR trigger parameter from PCRF;
Charging Detail Record unit 902 is used for according to the PCC rule current business being carried out offline charging, and generates the required interim UDR that charges according to the interim UDR trigger parameter.
Further comprise among this PCEF: information provides unit 903, is used to PCRF that beared information is provided.
Further comprise in the above-mentioned Charging Detail Record unit 902: interim UDR generation unit 9021, the interim UDR trigger parameter that is used for carrying according to the PCC rule produces the required interim UDR that charges; Interim UDR trigger parameter in the embodiment of the invention comprises time point trigger parameter and/or flow control parameter and/or duration Control Parameter, and/or the charging condition changes Control Parameter;
When reaching time point trigger parameter official hour point, interim UDR generation unit 9021 is closed current ticket, and produces new ticket; And/or when the flow of ticket writing reached the flow threshold of flow control parameter regulation, interim UDR generation unit 9021 was closed current ticket, and produces new ticket; And/or when the charging duration of ticket writing reached the duration threshold value of duration Control Parameter regulation, interim UDR generation unit 9021 was closed current ticket, and produces new ticket; And/or when the change frequency of the charging condition of ticket correspondence reached the charging condition and changes the change frequency threshold value of Control Parameter regulation, interim UDR generation unit 9021 was closed current ticket, and produces new ticket.
Based on Fig. 8 and PCRF and PCEF shown in Figure 9, can obtain the composition structural representation of system embodiment of the present invention as shown in figure 10.As shown in figure 10, this system comprises: PCRF1001 and PCEF1002;
PCRF1001 after being used for judging the current business needs and carrying out offline charging according to the charge information that gets access to, formulates the PCC rule, carries the interim UDR trigger parameter in this PCC rule, and gives PCEF1002 with this PCC rule downloading;
PCEF1002 is used to receive the PCC rule from PCRF1001, according to this PCC rule current business is carried out offline charging, and generates the required interim UDR that charges according to the interim UDR trigger parameter.
Wherein, the charge information that gets access to of PCRF1001 comprises: charging policy information, user signing contract information, application message and the beared information of operator's configuration; Further comprise in this system: SPR1003, AF1004;
SPR1003 is used for providing user signing contract information to PCRF1001; AF1004 is used for providing application message to PCRF1001; PCEF1002 is further used for, and provides beared information to PCRF1001.
Above-mentioned PCRF1001 can be further used for, if the application message that gets access to shows that the user is current and carries out more than one business at the same time, then PCRF1001 judges respectively whether each business needs to carry out offline charging, and the business that needs carry out offline charging formulated the PCC rule respectively, be handed down to PCEF1002.
PCRF1001 also can be further used for, and when offline charging strategy and/or user signing contract information and/or application message, and/or beared information is when changing, rejudge current business and whether need to carry out offline charging, if desired, then reformulate the PCC rule, and be handed down to PCEF1002.
As seen, adopt the technical scheme of the embodiment of the invention, by in the PCC rule, increasing the interim UDR trigger parameter, realized different scenes, charge as different user, different business and different period, and can carry out in the process in business, charging policy and ticket generation speed are dynamically adjusted; In addition, in the described scheme of the embodiment of the invention, all unify in PCRF, to finish, make decision point more concentrated, be convenient to safeguard about the control of offline charging; Also have, described scheme of the embodiment of the invention and network type are irrelevant, can be widely used in the variety of network types such as GPRS, WLAN, WiMax and fixed network.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. method that realizes offline charging control is characterized in that this method comprises:
Policy control and charging regulation function entity PCRF judge the current business needs according to the charge information that gets access to and carry out offline charging, and generate strategy control and charging PCC rule carry the interim UDR trigger parameter in the described PCC rule;
Described PCRF gives strategy with described PCC rule downloading and charges and carry out entity PCEF;
Described PCEF carries out offline charging according to described PCC rule to described business, and generates the required interim UDR that charges according to described interim UDR trigger parameter;
Wherein, the charge information that gets access to of described PCRF comprises: charging policy information, user signing contract information, application message and beared information;
The method that described PCRF obtains described charge information comprises:
Described PCRF accepts the charging policy information of operator's configuration;
Described PCRF obtains described user signing contract information from user signing contract information database SPR, obtain described application message from Application Function AF, obtains described beared information from described PCEF.
2. method according to claim 1 is characterized in that, the method for carrying the interim UDR trigger parameter in the PCC rule comprises:
Be handed down to increase in the PCC rule of PCEF at PCRF and be used to carry the attribute value of interim UDR trigger parameter AVP.
3. method according to claim 1 is characterized in that, described interim UDR trigger parameter comprises: the time point trigger parameter, and/or ticket produces speed control parameter;
Described PCEF comprises according to the method that described interim UDR trigger parameter generates the required interim UDR that charges:
In charging process, when in the charging policy information that reaches described user signing contract information and/or configuration during official hour point, described PCEF closes current ticket, and produces new ticket;
And/or when satisfying described ticket and produce requiring of speed control parameter, described PCEF closes current ticket, and produces new ticket.
4. method according to claim 3 is characterized in that, described ticket produces speed control parameter and comprises: flow control parameter, and/or duration Control Parameter, and/or the charging condition changes Control Parameter;
Described described PCEF closes current ticket when satisfying described ticket and produce requiring of speed control parameter, and the method that produces new ticket comprises:
In charging process, when the flow of a ticket writing reached the flow threshold of described flow control parameter regulation, described PCEF closed current ticket, and produces new ticket;
And/or when the charging duration of a ticket writing reached the duration threshold value of described duration Control Parameter regulation, described PCEF closed current ticket, and produces new ticket;
And/or when the change frequency of the charging condition of a ticket correspondence reached described charging condition and changes the change frequency threshold value of Control Parameter regulation, described PCEF closed current ticket, and produces new ticket.
5. method according to claim 1 is characterized in that, this method further comprises:
If the application message that described PCRF gets access to shows that described user carries out more than one business at the same time, then described PCRF judges respectively whether described business needs to carry out offline charging, and the business that needs carry out offline charging formulated the PCC rule respectively, be handed down to described PCEF.
6. method according to claim 1 is characterized in that, this method further comprises:
When described charging policy information and/or user signing contract information and/or application message, and/or beared information is when changing, and whether described PCRF rejudges described business needs to carry out offline charging, if desired, then reformulate the PCC rule, and send to described PCEF.
7. a system that realizes that offline charging is controlled is characterized in that this system comprises: policy control and charging regulation function entity PCRF and strategy and the execution entity PCEF that charges;
Described PCRF, after being used for judging the current business needs and carrying out offline charging according to the charge information that gets access to, generate strategy control and charging PCC rule carry the interim UDR trigger parameter in the described PCC rule, and give described PCEF with described PCC rule downloading;
Described PCEF is used to receive the PCC rule from described PCRF, according to described PCC rule described business is carried out offline charging, and generates the required interim UDR that charges according to described interim UDR trigger parameter;
Wherein, the charge information that gets access to of described PCRF comprises: charging policy information, user signing contract information, application message and the beared information of operator's configuration; Further comprise in this system: user signing contract information database SPR, Application Function AF;
Described SPR is used for providing described user signing contract information to described PCRF;
Described AF is used for providing described application message to described PCRF;
Described PCEF is further used for, and provides described beared information to described PCRF.
8. system according to claim 7, it is characterized in that, described PCRF is further used for, if the application message that gets access to shows that described user carries out more than one business at the same time, then described PCRF judges respectively whether described business needs to carry out offline charging, and the business that needs carry out offline charging formulated the PCC rule respectively, be handed down to described PCEF.
9. system according to claim 7, it is characterized in that, described PCRF is further used for, when described charging policy information and/or user signing contract information and/or application message, and/or beared information is when changing, and whether described PCRF rejudges described business needs to carry out offline charging, if desired, then reformulate the PCC rule, and be handed down to described PCEF.
10. a policy control and a charging regulation function entity PCRF who realizes offline charging control is characterized in that this PCRF comprises information acquisition unit, judging unit and regular generation unit;
Described information acquisition unit is used to obtain charge information;
Described judging unit, whether needs carry out offline charging to be used for judging current business according to the charge information of described information acquisition unit, and judged result is sent to described regular generation unit;
Described regular generation unit, be used to receive judged result from described judging unit, if described judged result is for need carry out offline charging, then generation strategy control and charging PCC rule, carry the interim UDR trigger parameter in the described PCC rule, and described PCC rule downloading is given strategy and chargeed execution entity PCEF;
Wherein, described charge information comprises: charging policy information, user signing contract information, application message and beared information;
Described information acquisition unit specifically is used for, accept the charging policy information of operator's configuration, from user signing contract information database SPR, obtain described user signing contract information, from Application Function AF, obtain described application message, from described PCEF, obtain described beared information.
11. PCRF according to claim 10, it is characterized in that, further comprise in the described regular generation unit: time point trigger parameter generation unit and/or flow control parameter generating unit and/or duration Control Parameter generation unit, and/or the charging condition changes the Control Parameter generation unit;
Described time point trigger parameter generation unit is used for rise time point trigger parameter, and described time point trigger parameter is carried at is handed down to described PCEF in the PCC rule;
Described flow control parameter generating unit is used to generate the flow control parameter, and described flow control parameter is carried at is handed down to described PCEF in the PCC rule;
Described duration Control Parameter generation unit is used to generate the duration Control Parameter, and described duration Control Parameter is carried at is handed down to described PCEF in the PCC rule;
Described charging condition changes the Control Parameter generation unit, is used to generate the charging condition and changes Control Parameter, and described charging condition is changed Control Parameter be carried at and be handed down to described PCEF in the PCC rule.
12. PCRF according to claim 10 is characterized in that,
Described judging unit is further used for, if the application message that gets access in the described information acquisition unit shows that described user carries out more than one business at the same time, then described judging unit judges respectively whether different business needs to carry out offline charging, and will be sent to described regular generation unit at the judged result of variant business respectively;
Described regular generation unit is further used for, reception is from the judged result of described judging unit at different business, formulate the PCC rule respectively for judging the business that to carry out offline charging, carry the interim UDR trigger parameter in the described PCC rule, and give described PCEF described PCC rule downloading.
13. PCRF according to claim 10 is characterized in that,
Described judging unit is further used for, charging policy information in described information acquisition unit and/or user signing contract information and/or application message, and/or beared information is when changing, whether need carry out offline charging, and judged result is sent to described regular generation unit if rejudging described business;
Described regular generation unit is further used for, reception is from the judged result of described judging unit, if described judged result for need carry out offline charging, then regenerates the PCC rule, carry the interim UDR trigger parameter in the described PCC rule, and give described PCEF described PCC rule downloading.
14. realize the strategy of offline charging control and the execution entity PCEF that charges, it is characterized in that this PCEF comprises: receiving element and Charging Detail Record unit for one kind;
Described receiving element is used to receive policy control that carries the interim UDR trigger parameter and charging PCC rule from policy control and charging regulation function entity PCRF;
Described Charging Detail Record unit is used for according to described PCC rule current business being carried out offline charging, and generates the required interim UDR that charges according to described interim UDR trigger parameter;
In addition, further comprise among the described PCEF: information provides the unit, is used to described PCRF that beared information is provided.
15. PCEF according to claim 14 further comprises in the described Charging Detail Record unit: the interim UDR generation unit, the interim UDR trigger parameter that is used for carrying according to described PCC rule produces the required interim UDR that charges; Described interim UDR trigger parameter comprises time point trigger parameter and/or flow control parameter and/or duration Control Parameter, and/or the charging condition changes Control Parameter;
When reaching described time point trigger parameter official hour point, described interim UDR generation unit is closed current ticket, and produces new ticket;
And/or when the flow of ticket writing reached the flow threshold of described flow control parameter regulation, described interim UDR generation unit was closed current ticket, and produces new ticket;
And/or when the charging duration of ticket writing reached the duration threshold value of described duration Control Parameter regulation, described interim UDR generation unit was closed current ticket, and produces new ticket;
And/or when the change frequency of the charging condition of ticket correspondence reached described charging condition and changes the change frequency threshold value of Control Parameter regulation, described interim UDR generation unit was closed current ticket, and produces new ticket.
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