CN100558039C - A kind of charge associated method - Google Patents
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Abstract
A kind of charge associated method relates to the communications field, solves the charge associated defective that can't realize in the prior art based on professional and content.At first application layer sends the service conversation sign to bearing bed, bearing bed is preserved the service conversation sign of receiving then, and in the charging data record that produces, insert the service conversation sign, last charging center association realizes the charging based on professional and content at the application layer of same service conversation and the charge information of bearing bed.
Description
Technical field
The present invention relates to the communications field, especially relate to a kind of method charge associated in communication system.
Background technology
Along with the development of broadband network, mobile communication will no longer be confined to traditional Speech Communication, carry out gradually in conjunction with the multimedia service of multiple medium types such as audio frequency, video, picture and text.Therefore, 3G (3rd Generation, the 3G (Third Generation) Moblie technology) becomes the developing direction of communication network, this technology combines radio communication and Internet multimedia communication, can handle multiple media formats such as image, music, video flowing, multiple information services such as comprising web page browsing, videoconference, ecommerce is provided.
The network configuration that 3G adopts is as shown in table 1:
Table 1
| Application layer |
| Key-course |
| Bearing bed |
| Access Layer |
It is four layers that this network configuration is divided into, and is respectively from bottom to top: Access Layer, bearing bed, key-course and application layer.
The standardization effort of 3G is finished by 3GPP (3rd Generation Partnership Project, the standardized partnership projects of 3G (Third Generation) Moblie) tissue, up to the present four versions has been arranged, i.e. R99, R4, R5 and R6.
In the R5 version, 3G introduces IMS (Internet protocol MultimediaSubsystem, internet protocol multimedia subsystem) and is superimposed upon on the packet field network.IMS comprises CSCF (Call Session Control Function, CSCF), MGCF (Media Gateway Control Function, MGCF), MRF (Multimedia Resource Function, media resource function) and HSS (HomeSubscriber Server, home signature user server) functional entity such as, wherein CSCF further comprises S-CSCF (Serving CSCF, serving CSCF), P-CSCF (Proxy CSCF, proxy CSCF) and three logic entities of I-CSCF (Interrogating CSCF, inquiry CSCF).The IMS network of 3GPP definition also can be applied to 3GPP2 (3rd GenerationPartnership Project 2, the standardized partnership projects 2 of 3G (Third Generation) Moblie) on Ding Yi the packet network, intercommunication with the polytype network is provided, realizes and the user uses the independence of terminal type.
In IMS, use the signaling control protocol of SIP (Session Initiation Protocol, Session initiation Protocol) as IP (Internet Protocol, Internet Protocol) Multimedia session.SIP is the IP phone signaling protocol that is proposed by IETF (Internet Engineering Task Force, internet engineering task group), is used for initiation session.This agreement is controlled the foundation and the termination of the Multimedia session of a plurality of participants' participation, and can dynamically adjust and revise session attribute, as session bandwidth require, the code/decode format of the medium type (voice, video and text etc.) of transmission, medium, to the support of multicast and clean culture etc.
PoC (Push to talk Over Cellular, Push to talk over Cellular) be based on IMS by OMA (Open Mobile Alliance, the Open Mobile Alliance tissue) Ding Yi the PTT that on packet network, realizes (Push To Talk, PoC) business, this business adopts VoIP (Voice over Internet Protocol, the Internet protocol transport speech) and semiduplex mode to satisfy user's real time communication demand.
PoC service has following characteristics: do not need dialing during conversation, pin special keys and just can realize voice communication; Can carry out multicast; Group can be defined in advance, also group can be defined temporarily; Adopting semiduplex mode in communication process, can not make a speech when answering in the side of answering; The user is online all the time, sets up the air time weak point.
The PoC service unfolding model as shown in Figure 1, Push to talk over Cellular user with Push to talk over Cellular capable terminal at first carries out service contracting with Push-to-talk over Cellular supplier, the permission of acquisition Push-to-talk over Cellular, this user finds that by terminal network possesses the Push-to-talk over Cellular ability then, and set up and other Push to talk over Cellulars user's contact by Push-to-talk over Cellular supplier, this user can request to make a speech by button at last, realizes professional.
At present, there are three kinds of methods can realize charge charge associated in the control of IMS.A kind of method is based on SBLP (Service-Based Local Policy, based on the control of the local policy of business) charge associated, another kind is FBC (Flow Based Charging, based on flow based charging), another is PCC (Policy and Charging Control, the strategy and the control of chargeing).
Be meant by share I CID between the IMS network entities all in same session or affairs (IMS Charging Identifier, IMS charging identifier) based on the charging method of SBLP metering data is associated, thereby realize the charge associated of IMS territory.When a SIP session is set up, handle the IMS network entity of initiating message and produce an ICID, this ICID will be used for the follow-up sip message of all these sessions, be sent to the node of session termination from the node of session initiation by this ICID of described message, remove UE (User Equipment, subscriber equipment) this ICID will be preserved and use to each node outside all, and this ICID inserted send to charge system in the charging data record.The sip message irrelevant with session constitutes SIP affairs, and first IMS network functional entity of handling this sip message produces an ICID, this ICID in these SIP affairs effectively and be included in request and the response message.Because the PoC system bearing is on the IMS network, can be regarded as an AS (Application Server on the IMS network, application server), this AS provides speech, message and multimedia conversation business, so this PoC system also uses ICID to generate dialogue-based or sends to the charging center based on the charging data record of affairs, the telephone bill association of the same ICID of use that the charging center will be extracted from PoC AS and IMS bearer network again unified charging of getting up.
The FBC method is based on the charging of IP stream, this method is by CRF (Charging RuleFunction, charging rule functions) and TPF (Traffic Plane Function, the service plane function) the Gx interface between, the ICID that in the charging regulation that transmits key-course is distributed sends TPF to, when producing charging data record, this ICID is inserted then, in charge system, carry out association charging.
The realization mechanism and the FBC of PCC method are similar, and just the interface of realizing strengthens on the Gx interface.
But, be to carrying the charging of Control Network, can't implementing the various charging policy of operator based on professional and content based on the charging method of SBLP.Charge if operator wishes each PoC client-side session that comprises in the whole PoC service communication bound, then use this technology to realize.FBC method and PCC method are only considered charge associated between key-course and the bearing bed, also can't realize charge associated based on professional and content.
Summary of the invention
An object of the present invention is to provide a kind of charge associated method, to overcome the charge associated defective that can't realize in the prior art based on professional and content.
The present invention includes following steps:
A, the bearing bed service conversation sign that layer uses that is applied;
B, bearing bed are inserted described service conversation sign in the charging data record that produces, described service conversation sign is used for identifying a service conversation, and described service conversation is made of a plurality of Session initiation Protocol sessions;
C, charging center identify the charge information of associated application layer and bearing bed according to the service conversation in the charging data record.
According to one aspect of the present invention, described service conversation is designated ACID (ApplicationCharging Identity, use charging identifier) or SID (Session Identity, session identification), be used for identifying a service conversation, this service conversation is made of a plurality of SIP sessions, at this service conversation duration of existence, and described this service conversation of service conversation sign unique identification.
According to another aspect of the present invention, steps A is that described service conversation identifies by the interface between application level function entity and the bearing bed functional entity by PDF (Policy DecisionFunction, strategy decision function) sends bearing bed to, and in charging process, use by the bearing bed gateway entity.
According to another aspect of the present invention, described service conversation sign sends PDF to by the interface between AF (Application Function, application function) and the PDF, and is used for the selection of strategy by PDF.
According to another aspect of the present invention, described service conversation sign sends PEF by the interface between PDF and the PEF (Policy Enforcement Function, policy enforcement function) to by PDF, and is used in charging process by the bearing bed gateway entity.
According to another aspect of the present invention, described service conversation sign sends CRF to by the interface between AF and the CRF, and is used for the selection of charging regulation by CRF.
According to another aspect of the present invention, described service conversation sign sends TPF by the interface between CRF and the TPF to by CRF, uses in charging process for the bearing bed gateway entity.
According to another aspect of the present invention, described service conversation sign is by AF and PCRF (Policy and Charging Rules Function, "Policy and Charging Rules Function) interface between sends PCRF to, and is used for the selection of strategy and charging control rule by PCRF.
According to another aspect of the present invention, described service conversation sign is by PCRF and PCEF (Policy and Charging Enforcement Function, strategy and charge execution function) between interface, send PCEF to by PCRF, in policy control and charging process, use for the bearing bed gateway entity.
According to another aspect of the present invention, it is related at the application layer of same service conversation and the charge information of bearing bed according to the sign of the service conversation in the charging data record of receiving that step C is specially the charging center, and then realize the charging policy based on professional and content.
Compared with prior art, the present invention has the following advantages:
The present invention proposes a kind of method charge associated in communication network, by in the carrying charging process, introducing the service conversation sign of application layer, realized the charging that prior art can't realize, be convenient to operator and introduce various abundant charging policy flexibly based on professional and content.
Description of drawings
Fig. 1 is PoC service unfolding model figure.
Fig. 2 is based on a kind of business process map of the present invention in the network of SBLP.
Fig. 3 is an IMS business process map end to end of the present invention.
Fig. 4 is the IMS business process map of a customer end/server mode of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail:
The present invention describes with the embodiment that is applied as of PoC service, but the implementation method that the present invention proposes is equally applicable to other application.
When the present invention produces charging data record by the functional entity at bearing bed, increase the part of service conversation identification information as charging data record, thereby all charge informations that belong to same PoC cluster conversation are associated, realize the charge associated of bearing bed and application layer.The form of this service conversation sign can be ACID or session identification SID, also can be other forms of sign, and the effect of service conversation sign is to exist at service conversation to be used for this service conversation of unique identification in the process.Be that example describes with session identification SID below, concrete processing procedure is equally applicable to other forms of service conversation sign.
The PoC service session identification can adopt the form of SIP URI (Universal ResourceIdentifier, unified resource identifier) to constitute, and is used to identify a PoC service session.This PoC service session is the PoC cluster conversation that is made of a plurality of sessions.The PoC session sign is to set up in the process at PoC session, sends POC client to by (contact) header field of the CONTACT in the Session Initiation Protocol and/or TBCP (Talk Burst Control Protocol, the power of talking control protocol) Connect (connection) message.In second version of PoC, TBCP upgrades to MBCP (Media Burst Control Protocol, media bursts control protocol), and PoC session is identified among usage and the TBCP among the MBCP the same.The PoC session sign is divided into two kinds of distributing long-term allocation and interim, long-term allocation be used for setting up in advance good PoC group, it is interim that what distribute is by (Control Function, the controlled function) server-assignment of the CF in the network and return to the use of PoC client when a PoC client is set up PoC session for the first time when.It is effective that this PoC session is identified at this PoC session duration of existence, when another one PoC client rebulids a PoC session, this PoC session sign is also just different, if but after withdrawing from, this PoC client adds original PoC session more again, and then the PoC session sign is constant.
In different systems, the load mode of service conversation identification information is different.
In the network based on SBLP, a kind of operation flow of the present invention as shown in Figure 2.This system comprises application level function entity A F and PDF, bearing bed functional entity GGSN (Gate GPRSSupporting Node, gateway GPRS supporting node (GGSN)), and AF and PDF are on same physical entity.With reference to Fig. 2, the present invention includes following steps:
Step s101, PDF send COPS (Common Open Policy Serviceprotocol, general open policy service protocol agreement) DEC (Decision, decision) message and give GGSN, transmit SIP session corresponding service session identification in this message simultaneously;
Step s102, GGSN preserve the service conversation sign of receiving according to the DEC message of receiving;
Step s103, GGSN return COPS RPT (Report, report) message and give PDF;
Step s104, GGSN insert the service conversation sign in the charging data record that produces;
Step s105, when chargeing, GGSN is related at the application layer of same service conversation and the charge information of bearing bed according to the sign of the service conversation in the charging data record.If the service conversation of two charge informations sign is identical, represent that then this information belongs to same service conversation, GGSN unifies the information of identical services session identification to charge.
If AF and PDF are on different physical entities, then the service conversation sign sends PDF to by the interface between AF and the PDF, carries out step s101～s105 again, realizes the charge associated of bearing bed and application layer.
In the network based on FBC, AF has interface as server of application layer and the CRF that preserves charging regulation, is used to transmit charge information that applications/business be correlated with to CRF.CRF selects suitable charging regulation to send to bearing bed in conjunction with other information and goes to use according to this charge information.The present invention offers at AF increases the service conversation sign in the information of CRF, this information comprises: the identification information of business data flow, can wildcard represent the polymerization of a lot of IP streams; Support the information that charging regulation is selected: application/service identification, service conversation sign, application/professional dependent event sign, Media Stream type (video, audio frequency) (optional), media stream rate (optional).
Further, CRF sends the service conversation sign to TPF when issuing charging regulation, use when generating charging data record for it.
Use of the present invention one end to end the IMS operation flow as shown in Figure 3, this system comprises two subscriber equipmenies: subscriber equipment 1 and subscriber equipment 2, application level function entity application function AF and proxy CSCF, key-course functional entity charging rule functions CRF, bearing bed functional entity service plane function TPF, a charge system.With reference to Fig. 3, the present invention includes following steps:
Step s201, subscriber equipment 1 is set up the SIP session and is carried out SDP (Session Description Protocol, Session Description Protocol) negotiation to subscriber equipment 2;
Step s202, in negotiations process and after consulting to finish, the AF/ proxy CSCF sends the information relevant with application layer and is used to select charging regulation to CRF, in this process, to send the service conversation of the PoC service under this SIP session sign to CRF simultaneously, by CRF when selecting charging regulation as reference information;
Step s203 carries this service conversation sign in CRF is handed down to the charging regulation of TPF, be kept among the TPF;
Off-line or online information that step s204, TPF will contain charging key (charging key) send to charge system, and this information comprises the service conversation sign.
Step s205, when chargeing, charge system is related at the application layer of same service conversation and the charge information of bearing bed according to the service conversation sign that receives.If the service conversation of two charge informations sign is identical, represent that then this information belongs to same service conversation, charge system is unified the information of identical services session identification to charge.
When practical application, operator also can merge AF and CRF and is placed on the same physical entity.At this moment, will omit step s202.
In the network based on PCC, AF has interface as server of application layer and the PCRF that preserves charging regulation, is used to transmit charge information that applications/business be correlated with to PCRF.PCRF selects suitable charging regulation to send to bearing bed in conjunction with other information and goes to use according to this charge information.Interface between AF and the PCRF can transmit the stream information that is used to charge and/or be used for the medium/information such as application bandwidth demand of QOS (Quality of Service, service quality) control, identifies comprising service conversation.
Further, the interface between PCRF and the PCEF can transmit various strategies and charging control rule, comprising the service conversation sign, uses when being used to produce charging data record.
The IMS operation flow of using a customer end/server mode of the present invention as shown in Figure 4, this system comprises the application server of an application layer, proxy CSCF, key-course functional entity "Policy and Charging Rules Function PCRF, bearing bed functional entity strategy and a charge execution function PCEF, a subscriber equipment, a charge system.With reference to Fig. 4, the present invention includes following steps:
Step s301, subscriber equipment is set up the SIP session and is carried out SDP negotiation to application server;
Step s302, application server sends the information relevant with application layer and is used to select charging regulation to PCRF, in this process, will send the service conversation of the application under this SIP session sign to PCRF together simultaneously, by PCRF when selecting charging regulation as reference information;
Step s303 carries this service conversation sign in PCRF is handed down to the charging regulation of PCEF, be kept among the PCEF;
Off-line or online information that step s304, PCEF will contain charging key send to charge system, and this information comprises the service conversation sign.
Step s305, when chargeing, charge system is related at the application layer of same service conversation and the charge information of bearing bed according to the service conversation sign that receives.If the service conversation of two charge informations sign is identical, represent that then this information belongs to same service conversation, charge system is unified the information of identical services session identification to charge.
When practical application, operator also can merge application server and PCRF and is placed on the same physical entity.At this moment, will omit step s302.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1, a kind of charge associated method is characterized in that, may further comprise the steps:
A, the bearing bed service conversation sign that layer uses that is applied;
B, bearing bed are inserted described service conversation sign in the charging data record that produces, described service conversation sign is used for identifying a service conversation, and described service conversation is made of a plurality of Session initiation Protocol sessions;
C, charging center identify the charge information of associated application layer and bearing bed according to the service conversation in the charging data record.
2, charge associated according to claim 1 method is characterized in that, at described service conversation duration of existence, and described this service conversation of service conversation sign unique identification.
3, charge associated according to claim 1 method is characterized in that described service conversation is designated the application charging identifier.
4, charge associated according to claim 1 method is characterized in that described service conversation is designated session identification.
5, charge associated according to claim 1 method, it is characterized in that, steps A is that described service conversation sign sends bearing bed by the interface between application level function entity and the bearing bed functional entity to by strategy decision function, and is used in charging process by the bearing bed gateway entity.
As charge associated method as described in the claim 5, it is characterized in that 6, described service conversation sign sends strategy decision function to by the interface between application function and the strategy decision function, and is used for tactful selection by strategy decision function.
7, as charge associated method as described in claim 5 or 6, it is characterized in that, described service conversation sign sends policy enforcement function by the interface between strategy decision function and the policy enforcement function to by strategy decision function, and is used in charging process by the bearing bed gateway entity.
As charge associated method as described in the claim 5, it is characterized in that 8, described service conversation sign sends charging rule functions to by the interface between application function and the charging rule functions, and is used for the selection of charging regulation by charging rule functions.
9, as charge associated method as described in claim 5 or 8, it is characterized in that, described service conversation sign sends the service plane function by the interface between charging rule functions and the service plane function to by charging rule functions, uses in charging process for the bearing bed gateway entity.
10, as charge associated method as described in the claim 5, it is characterized in that, described service conversation sign sends "Policy and Charging Rules Function to by the interface between application function and the "Policy and Charging Rules Function, and is used for the selection of strategy and charging control rule by "Policy and Charging Rules Function.
11, as charge associated method as described in claim 5 or 10, it is characterized in that, described service conversation sign is by the interface between "Policy and Charging Rules Function and strategy and the charge execution function, send strategy and charge execution function to by "Policy and Charging Rules Function, in policy control and charging process, use for the bearing bed gateway entity.
12, charge associated according to claim 1 method, it is characterized in that, it is related at the application layer of same service conversation and the charge information of bearing bed according to the sign of the service conversation in the charging data record of receiving that step C is specially the charging center, and then realize the charging policy based on professional and content.
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101127611B (en) * | 2007-09-19 | 2012-09-05 | 中兴通讯股份有限公司 | Billing information integration method and system for IMS network elements and system and billing method and system |
| CN101217810B (en) * | 2008-01-16 | 2011-11-30 | 中兴通讯股份有限公司 | A selecting method of strategy and charging rule functions |
| US8116728B2 (en) * | 2008-04-22 | 2012-02-14 | Alcatel Lucent | Charging in LTE/EPC communication networks |
| CN101335630B (en) * | 2008-04-30 | 2011-09-14 | 北京邮电大学 | Charge associated method and device |
| ES2477517T3 (en) * | 2008-09-19 | 2014-07-17 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for establishing a PoC session |
| CN102217227B (en) * | 2008-11-19 | 2015-06-17 | 诺基亚通信公司 | Methods, apparatuses, system and related computer program product for charging of always-on connections |
| CN101778434B (en) * | 2009-01-12 | 2014-11-05 | 华为技术有限公司 | Method, network equipment and system controlled uniformly |
| CN101945367A (en) * | 2009-07-08 | 2011-01-12 | 中兴通讯股份有限公司 | Charging method and device for evolved packet system |
| US8706080B2 (en) * | 2009-10-02 | 2014-04-22 | Telefonaktiebolaget L M Ericsson (Publ) | Charging correlation for dedicated bearers |
| CN105634970B (en) * | 2014-11-06 | 2019-06-11 | 中国移动通信集团公司 | A kind of flow is examined and made cuts method, equipment and system |
| CN106899417B (en) * | 2017-03-15 | 2019-08-20 | 泰华智慧产业集团股份有限公司 | By the charging method and system of number of billing |
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| CN1444824A (en) * | 2000-05-24 | 2003-09-24 | 诺基亚有限公司 | Common charging identifier for communication networks |
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