CN103490908B - The selection method of "Policy and Charging Rules Function, apparatus and system - Google Patents

Abstract

The invention discloses the selection methods of "Policy and Charging Rules Function (PCRF) a kind of, apparatus and system, method includes the following steps: the subscriber group information for the user group that the PCRF that Diameter route agent (DRA) is received as the first user service in user group is sent；DRA selects above-mentioned PCRF according to the address information of the subscriber group information and above-mentioned PCRF for the other users in the user group.Through the invention, the dosage for solving the problems, such as that dosage monitoring mechanism cannot achieve domestic consumer's group in the related technology monitors demand, ensure that and selects a unified PCRF come the dosage for managing user group for the user in user group, improves the operability of system.

Description

The selection method of "Policy and Charging Rules Function, apparatus and system

Technical field

The present invention relates to the communications fields, in particular to a kind of "Policy and Charging Rules Function (Policy and Charging Rules Function, referred to as PCRF) selection method, apparatus and system.

Background technique

Third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) definition For the strategy and charging control (Policy and Charging Control, referred to as PCC) framework of mobile network, Fig. 1 It is the 3GPP PCC configuration diagram according to the relevant technologies, as shown in Figure 1, each function is described below:

PCRF, the business data flow for including for business formulate resources control plan using Internet resources in transmission process It omits, including service quality (Quality of Service, referred to as QoS) control strategy and charging control strategy.

Tactful and charge execution function (Policy and Charging Enforcement Function, referred to as PCEF), for executing the PCC being pre-configured on PCRF is issued or PCEF rule, the IP packet of transmission over networks is examined It surveys, identifies the business data flow that the IP packet is subordinate to, and provide QoS and charging control to business data flow.

Bearing binding and event reporting functions (Bearer Binding and Event Report Function, abbreviation For BBERF), it is mainly used for examining network protocol (Internet Protocol, referred to as IP) message of transmission over networks It surveys, and IP packet is mapped on corresponding bearer path according to rule.BBERF also executes reporting for carrying dependent event, example Such as, it when carrying is lost or access network switching occurs, requires corresponding event being reported to PCRF, request PCRF carries out corresponding decision.

User-subscribed database (Subscription Profile Repository, referred to as SPR) is used for saving The business information of family signing works out PCC rule for PCRF and provides necessary user signing contract information.

Online charging system (Online Charging System, referred to as OCS) and off-line accounting system (Offline Charging System, referred to as OFCS), it is respectively used to offline and online charging.

During user commences business, PCC is that business (being made of several business data flows) is passing according to following principle Dynamic provides QoS guarantee during defeated:

Firstly, the corresponding specific PCC of each business data flow that business includes is regular, defined in PCC rule QoS resource to be used is needed when the business data flow transmits.Before business data flow transmits in bearer network, PCRF needs It is business data flow decision according to various information and formulates PCC rule.PCRF decision simultaneously formulates packet based on PCC rule It includes:

(1) from the received service negotiation information of AF.The service negotiation information is exactly when user commences business and Correspondent Node The information of the development business of negotiation, for example, carrying out requirement of the business to QoS, the IP address that communicating pair uses, end The information such as slogan, used agreement.

(2) from the received user signing contract information of SPR.For example, contract in user signing contract information comprising user and operator QoS information；When user commences business, requirement of the business to QoS can make no more than the user of user signing contract information defined QoS information.

(3) the customized strategy of operator of PCRF itself storage.Such as operator opens roaming service customer and non-roaming subscriber Exhibition industry business needs to distinguish control, and the differentiation control strategy of this operator's self-defining can be only fitted on PCRF.

(4) the received access relevant information from PCEF or BBERF.For example, PCRF needs when user is attached to network The information of user access network is obtained by PCEF or BBERF, carries out strategic decision-making so that PCRF commences business for user.

(5) credit information of user is obtained from OCS.For example, PCRF is with regard to nothing when the credit once user is finished or is inadequate User described in method authorization commences business.

Secondly, PCRF is regular to business data flow decision-making PCC according to above- mentioned information, and PCC rule is handed down to If there are BBERF, PCRF also to need to formulate QoS rule in PCEF(network, and is handed down to BBERF).PCEF needs basis The qos requirement of PCC rule establishes corresponding carrying, and PCC rule is tied in corresponding carrying (if existed in network BBERF is then established according to QoS rule by BBERF and is carried).If had in network and PCC rule or the instruction of QoS rule The carrying that matches of QoS, then the PCC rule or QoS rule are tied in existing carrying.

Hereafter, when user commence business business data flow transmitted on bearer network when, terminal and the network equipment can The business will be formed according to five-tuple (being made of source IP address, source port number, purpose IP address, destination slogan, agreement) The IP packet of data flow is matched to corresponding PCC rule/QoS rule, is closed according to the binding of PCC rule/QoS rule and carrying System, so that it may the business data flow is matched in corresponding carrying, to be biography of the business data flow on bearer network Defeated offer QoS guarantee.When the service ending that user carries out, corresponding PCC rule needs are deleted from bearer network, i.e., The QoS resource that the business uses is distributed in release.It on the one hand can demand according to business to QoS by above-mentioned PCC mechanism Corresponding QoS resource is distributed, on the other hand realizing can distribute when needing QoS resource, when not needing QoS resource, so that it may To discharge in time, therefore it can achieve by PCC mechanism and promote customer service experience, improve the mesh of Internet usage efficiency 's.

In order to improve the flexibility of network operation, for example, 10M is exempted from for user before operator wishes for certain business What expense used, after the dosage of user exceeds 10M, it is necessary to collect the charges；For another example, operator is intended to user in 10M Flow within a kind of bandwidth is provided, when flow exceed 10M after need to limit the bandwidth of the user.For above-mentioned field Scape, it is desirable that when user commences business, while PCRF issues the control strategy for business to PCEF, it is also necessary to issue dosage Monitoring, it is desirable that PCEF is monitored the flow of the business.When the flow of the business reaches the required threshold value of monitoring, PCEF needs to report dosage monitored results to PCRF, so that PCRF carries out strategy to the business again according to dosage monitored results Decision generates new control strategy.

Fig. 2 is the schematic diagram that implementation process is monitored according to the dosage of the relevant technologies, as shown in Fig. 2, the realization of dosage monitoring The process of process is as follows:

Step A1-A3 issues the process that dosage monitors to PCEF for PCRF.Wherein, business is by one or more business Data flow is constituted, and PCRF needs to formulate control strategy (PCC rule) for each business data flow and is handed down to PCEF, PCEF according to PCC rule implements QoS and charging control to business data flow.If necessary to monitor to the service implementation dosage, then PCRF is under When sending out PCC rule, while dosage monitoring is issued, the dosage monitoring is by a monitoring keyword (monitoring key) and threshold It is worth (threshold) composition, wherein need which business data flow to implement dosage monitoring to, just in description business data flow It include the monitoring key in PCC rule.Above- mentioned information are handed down to PCEF by PCRF, and PCEF receives right after the information The business data flow implements dosage monitoring.

For example, the business for needing to implement dosage monitoring in process contains business data flow -1 and business data flow -2, then PCRF issues the process such as step A1-A2 description that dosage monitors to PCEF:

Step A1.PCRF is that the business carries out strategic decision-making, generates control strategy (PCC rule), while needing for institute The monitoring of service implementation dosage is stated, then PCRF distribution monitoring keyword monitoring key, and is included in -1 and PCC of PCC rule It in rule -2, while being the monitoring key according to the signing dosage allocation threshold threshold of user, and will be described Monitoring key and threshold are included in dosage monitoring information (Usage Monitoring Information).

Step A2.PCRF issues control strategy to PCEF, includes PCC rule -1, PCC rule -2 and dosage monitoring information.

Step B, after PCEF receives the control strategy that PCRF is issued, installation PCC rule, and according to dosage monitoring information, Dosage monitoring is implemented to the corresponding business data flow (i.e. business data flow 1 and business data flow 2) of PCC rule.

Step C, dosage supervision and reporting.When PCEF reaches corresponding institute to the Monitoring Key accumulative dosage monitored When stating threshold value or when PCRF requires that dosage is reported to monitor, PCEF reports dosage to monitor.Dosage monitoring information (the Usage reported Monitoring Information) in comprising the Monitoring Key and accumulative use dosage.

Step D, according to dosage supervision and reporting as a result, PCRF reformulates control strategy to the business data flow.For example, Integrated flow has exceeded defined flow, and PCRF needs reduce the use bandwidth of the business.Meanwhile it if also needing Dosage monitoring is continued to execute to the business, then PCRF needs for the monitoring key according to user's signing dosage weight New allocation threshold.When the accumulative dosage of the user has arrived at the signing dosage, the user can not just be continued real Amount of application monitoring.

Step E, PCRF issue the new control strategy for the business to PCEF.Continue if necessary real to the business Amount of application controls, then is also needed in the information issued comprising dosage monitoring information.

Above-mentioned process describes to monitor single service implementation dosage.If necessary to the multiple or institute carried out to user There is the monitoring of service implementation dosage, then needs in the PCC rule of corresponding business data flow comprising monitoring keyword monitoring Key.

As it can be seen that the signing dosage of description of the prior art is directed to single user, i.e., only it is able to achieve and dosage is implemented to single user Monitoring.However, there is also the demand of multiple user sharing signing dosages, for example, one family label during actual operation About dosage set meal 500M, family signing dosage are shared by all members of family.For as above-mentioned domestic consumer organizes Dosage monitors demand, cannot achieve using existing dosage monitoring mechanism.

Aiming at the problem that dosage that user monitoring mechanism in the related technology cannot achieve domestic consumer's group monitors demand, at present Not yet put forward effective solutions.

Summary of the invention

The main purpose of the present invention is to provide the selection scheme of PCRF a kind of, at least to solve above-mentioned to use in the related technology Family monitoring mechanism cannot achieve the problem of dosage monitoring demand of domestic consumer's group.

According to an aspect of the invention, there is provided a kind of selection method of PCRF, comprising the following steps: DRA is received as The subscriber group information for the user group that the PCRF of the first user service is sent in user group；DRA is according to the subscriber group information and upper The address information of PCRF is stated, selects above-mentioned PCRF for the other users in the user group.

Preferably, before DRA receives the above-mentioned subscriber group information that PCRF is sent, this method further include: PCRF is by above-mentioned use Family group information is transmitted directly to DRA or PCRF and above-mentioned subscriber group information is sent to PCEF, by the PCEF by above-mentioned user group Information is sent to DRA, wherein above-mentioned subscriber group information includes the user identifier of all members in user group mark and user group.

Preferably, before above-mentioned subscriber group information is sent to DRA by PCRF, this method further include: PCRF is used according to first The user identifier at family obtains the subscriber group information of the user group from SPR.

Preferably, before DRA is the above-mentioned PCRF of other users selection in the user group, this method further include: DRA is received The address information of itself that PCRF is sent.

Preferably, after the subscriber group information for the user group that DRA reception PCRF is sent, this method further include: DRA is established The corresponding relationship of the address information of the subscriber group information and above-mentioned PCRF.

Preferably, above-mentioned first user is DRA when establishing above-mentioned corresponding relationship for the first time, the user that PCRF is serviced.

Preferably, it includes: that DRA is judged as above-mentioned first user choosing that DRA, which is the other users selection PCRF in the user group, Whether the PCRF selected and the PCRF selected for other users in above-mentioned first user owning user group are identical；If it is not the same, then DRA notice PCEF is that other users in the user group carry out PCRF selection again, wherein the PCRF reselected be above-mentioned The PCRF of first user service includes for the address information of the PCRF of above-mentioned first user service in the notice.

Preferably, after DRA notice PCEF is the other users progress PCRF selection in the user group again, this method is also It include: that PCEF is terminated and the IP-CAN session of original PCRF, and the IP-CAN between foundation and the PCRF for servicing above-mentioned first user Session.

Preferably, after DRA is the other users selection PCRF in the user group, this method further include: PCRF is according to this The signing dosage information of user group is that the user in the user group commences business and carries out dosage and monitor decision, and to hair under PCEF Family monitoring.

According to another aspect of the present invention, the selection device of PCRF a kind of is provided, DRA is located at, which includes: to receive Module, the subscriber group information for the user group that the PCRF for being received as the first user service in user group is sent；And selection Module, the address information of the subscriber group information and above-mentioned PCRF for being received according to receiving module, in the user group Other users select above-mentioned PCRF.

Preferably, device further include: establish module, the address for establishing above-mentioned subscriber group information and above-mentioned PCRF is believed The corresponding relationship of breath.

Preferably, the device further include: judgment module, for be judged as PCRF that above-mentioned first user selects with for the use Whether the PCRF that other users select in the group of family is identical；And processing module, for being judged as that above-mentioned first uses in judgment module The PCRF that family selects is notified in the different situation of PCRF selected for other users in above-mentioned first user owning user group PCEF is that the other users in the user group carry out PCRF selection again, wherein the PCRF reselected is used for above-mentioned first The PCRF of family service, includes for the address information of the PCRF of above-mentioned first user service in the notice.

In accordance with a further aspect of the present invention, the selection system of PCRF a kind of is additionally provided, including PCRF, SPR and above-mentioned The DRA that the selection device of PCRF is located at, wherein PCRF includes: acquisition forwarding module, for obtaining belonging to the first user from SPR User group subscriber group information, and the subscriber group information is sent to DRA；SPR includes: that inquiry issues module, is used for basis The instructions query of PCRF simultaneously issues the subscriber group information.

Through the invention, it uses DRA to belong to the mode that the user of same user group selects identical PCRF, solves Dosage monitoring mechanism cannot achieve the problem of dosage monitoring demand of domestic consumer's group in the related technology, ensure that as in user group User select a unified PCRF to manage the dosage of user group, improve the operability of system.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is the 3GPP PCC configuration diagram according to the relevant technologies；

Fig. 2 is the schematic diagram that implementation process is monitored according to the dosage of the relevant technologies；

Fig. 3 is the flow chart of the selection method of PCRF according to an embodiment of the present invention；

Fig. 4 is the structural schematic diagram of the selection device of PCRF according to an embodiment of the present invention；

Fig. 5 is the structural schematic diagram of the selection device of PCRF according to the preferred embodiment of the invention；

Fig. 6 is the structural schematic diagram of the selection system of PCRF according to an embodiment of the present invention；

Fig. 7 is the flow diagram of the selection PCRF of the embodiment of the present invention two；

Fig. 8 is the schematic diagram of the user signing contract information of the embodiment of the present invention two；

Fig. 9 is the schematic diagram of the user group signing information of the embodiment of the present invention two；

Figure 10 is the flow diagram of the selection PCRF of the embodiment of the present invention three；

Figure 11 is the flow diagram of the selection PCRF of the embodiment of the present invention four；

Figure 12 is that the PCRF of the embodiment of the present invention five carries out the flow diagram of dosage monitoring to user group.

Specific embodiment

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.

According to embodiments of the present invention, the selection method of PCRF a kind of is provided.Fig. 3 is PCRF according to an embodiment of the present invention Selection method flow chart, as shown in figure 3, method includes the following steps:

Step S302, the user group letter for the user group that the PCRF that DRA is received as the first user service in user group is sent Breath；

Step S304, DRA are according to the address information of the subscriber group information and above-mentioned PCRF, for other use in the user group The PCRF of family selection first class services user.

Through the above steps, DRA is used to belong to the mode that the user of same user group selects identical PCRF, is solved Dosage monitoring mechanism cannot achieve the problem of dosage monitoring demand of domestic consumer's group in the related technology, ensure that as user group Interior user selects a unified PCRF to manage the dosage of user group, improves the operability of system.

For example, DRA receive user IP connected reference network (IP-Connectivity Access Network, Referred to as IP-CAN) session establishment request when, DRA needs that a PCRF is selected to be serviced.In implementation process, mode one, Subscriber group information where the available user of DRA determines in the user group where the user have member selection PCRF, The IP-CAN session establishment that then DRA selects the PCRF to send the user is requested；The use of PCRF is selected in mode two, user group for the first time Family establishes the corresponding relationship of the user group He the PCRF after selecting PCRF in DRA, then DRA is according to the corresponding relationship PCRF corresponding with the user group is selected for other users in the user group.That is, DRA is the user's choosing for belonging to same user group Select identical PCRF.This method can guarantee that DRA in the IP-CAN session establishment request for receiving the user of same user group, is The user of same user group selects one PCRF, makes it possible that PCRF monitors the dosage of user group.

In implementation process, DRA can obtain the first use by the PCRF for the first user service in user group from SPR The mark of user group belonging to family.Specifically, can also be there are two types of method: (1) PCRF be obtained from SPR belonging to the first user After user group mark, the subscriber group information of user group mark instruction is transmitted directly to DRA；(2) PCRF obtains from SPR After the mark of user group belonging to one user, the subscriber group information of user group mark instruction is sent to corresponding with the first user The subscriber group information is transferred to DRA by the PCEF by PCEF.Wherein, above-mentioned subscriber group information may include user group mark and The user identifier of all members in the user group.

Preferably, before subscriber group information is sent to DRA by PCRF, PCRF is according to the user identifier of the first user from SPR Obtain the subscriber group information of user group.For example, DRA is returned as the PCRF that the first user selects to PCEF corresponding with the first user Address information；After PCEF receives the address information of PCRF, the is obtained from SPR by the PCRF that the address information of PCRF indicates Subscriber group information belonging to one user, and subscriber group information is sent to DRA.

Preferably, after step S302, DRA establishes the corresponding relationship of subscriber group information and PCRF address information.Implemented Cheng Zhong, above-mentioned first user are DRA when establishing the corresponding relationship for the first time, the user that PCRF is serviced.For example, user group mark and The corresponding relationship of the address PCRF, wherein all members correspond to one PCRF in user group.

Preferably, before step S304, DRA is received except the subscriber group information of PCRF transmission, also receives PCRF The address information of itself sent.

In addition, in step s 304, DRA can also be judged as the PRCF that the first user selects and to belong to same user Whether the PRCF of the second user selection of group is identical；If it is not the same, then DRA notifies that PCEF is second user selection and the again The identical PCRF of one user includes for the address information of the PCRF of the first user service in the notice.For example, DRA is first The PCRF of user service is PCRF1, then DRA be also selected with the second user of the first user attaching same subscriber group PCRF1 into Row service.If PCEF is second user selection PCRF2 before judgement, then after judgement is different, PCEF is terminated and original PCRF(PCRF2 IP-CAN session), and establish the IP-CAN session between PCRF1.It can further guarantee DRA in this way Identical PCRF is selected to service to belong to the user of same user group.

Preferably, after step S304, PCRF is opened according to the signing dosage information of user group for the user in user group Exhibition industry business carries out dosage and monitors decision, and issues user monitoring to PCEF.By this preferred embodiment, PCRF can manage user The signing dosage of group monitors demand to the dosage of user group to realize.

Corresponding to the above method, the embodiment of the invention also provides the selection devices of PCRF a kind of.Fig. 4 is according to the present invention The structural schematic diagram of the selection device of the PCRF of embodiment, as shown in figure 4, the device is located at DRA, comprising: receiving module 42 is used In the subscriber group information for the user group that the PCRF for being received as the first user service in user group is sent；And selecting module 44, It is coupled to receiving module 42, the address information of the subscriber group information and above-mentioned PCRF for being received according to receiving module 42, Above-mentioned PCRF is selected to be serviced for the other users in the user group.

By above-mentioned apparatus, selecting module 44 is the identical PCRF of user's selection for belonging to same user group, is solved Dosage monitoring mechanism cannot achieve the problem of dosage monitoring demand of domestic consumer's group in the related technology, ensure that as in user group User select a unified PCRF to manage the dosage of user group, improve the operability of system.

Fig. 5 is the structural schematic diagram of the selection device of PCRF according to the preferred embodiment of the invention, as shown in figure 5, the dress It sets further include: establish module 52, the correspondence of the address information for establishing first user's owning user group information and above-mentioned PCRF Relationship.That is, in user group the first user determine its selection PCRF after, DRA be established as first user's owning user group with The corresponding relationship of PCRF selected by first user, so that other users select PCRF identical with the first user to carry out in the user group Service.

Preferably, device further include: judgment module 54 is coupled to and establishes module 52, for being judged as that the first user selects Whether the PCRF selected and the PCRF selected for other users in user group are identical；And processing module 56, it is coupled to judgment module 54 and selecting module 44, for being judged as PCRF that the first user selects in judgment module 54 and being selected for other users in user group In the different situation of the PCRF selected, notice PCEF is that the other users in user group carry out PCRF selection again, wherein again The PCRF selected is for the PCRF of the first user service, includes for the address information of the PCRF of the first user service in the notice.

According to embodiments of the present invention, the selection system of PCRF a kind of is additionally provided.Fig. 6 is according to an embodiment of the present invention The structural schematic diagram of the selection system of PCRF, as shown in fig. 6, the system includes the selection dress of PCRF62, SPR64 and above-mentioned PCRF Set locating DRA66, wherein PCRF62 includes: to obtain forwarding module 622, is coupled to receiving module 42 and selecting module 44, is used In the subscriber group information for obtaining user group belonging to the first user from SPR64, and the subscriber group information is sent to DRA66； SPR64 includes: that inquiry issues module 642, is coupled to and obtains forwarding module 622, for according to the instructions query of PCRF62 and under Send out the subscriber group information.

It is described in detail below with reference to realization process of the preferred embodiments and drawings to above-described embodiment.

Embodiment one

Since dosage monitoring decision is realized on PCRF, to realize the dosage monitoring to user group, need to be managed by PCRF The signing dosage of user group.However, when DRA is selected as the PCRF of user's access service according to user identifier etc., different users Network is accessed, different PCRF may be selected to service for it, can not be realized in this way using existing dosage monitoring mechanism to above-mentioned The dosage of user group monitors demand.So the present embodiment is given in order to which the dosage of the user group to shared signing dosage monitors demand A kind of PCRF selection method is gone out, to realize the problem of user group dosage monitors.

In implementation process, the PCEF selection method of the present embodiment be may include steps of:

It step 1, is the PCRF of first user's access service in user group to Diameter route agent (Diameter Routing Agent, referred to as DRA) send subscriber group information belonging to the user.Wherein, the first user here is DRA first The secondary user that when establishing subscriber group information and PCRF information corresponding relationship, PCRF is serviced.

Wherein, subscriber group information includes at least: the user's mark for all users that user group mark and user group are included Know.Subscriber group information can be transmitted directly to DRA or PCRF by PCRF and be sent to DRA by PCEF.

Preferably, before step 1, DRA establishes the user identifier of first user and the corresponding relationship of the address PCRF. And before step 1, PCRF also obtains the corresponding user group signing information of first user, user group signing from SPR Information includes except subscriber group information, at least further includes user group signing dosage.PCRF is sent except subscriber group information to DRA, It optionally further include the address information that the PCRF sends the PCRF to DRA.

Preferably, after step 1, the corresponding relationship of subscriber group information and PCRF address information is established on DRA.

Step 2, according to the corresponding relationship of the subscriber group information and the address PCRF, DRA is the other users in user group Access select PCRF.

After step 2, PCRF commences business for the user in user group according to user group signing dosage and carries out dosage prison Control decision.

Embodiment two

User group in the present embodiment is made of user -1 and user -2, and shared user group signing dosage.In this implementation In example, give when user -1 and user -2 are linked into network or initiate to establish PDN connect when, how for user -1 and use DRA is acted on behalf of by proxy DRA(in family -2) choose the process of identical PCRF.

Fig. 7 is the flow diagram of the selection PCRF of the embodiment of the present invention two, as shown in fig. 7, the process includes following step It is rapid:

Step S701, the user -1 in user group are attached to network or initiate PDN connection and establish to request, it is assumed that according to asking The information (for example, APN) for including in message is asked to choose PCEF-1, user -1 initiates the request to PCEF-1.

Step S702 after PCEF-1 receives the request, sends the request of IP-CAN session establishment, the request to DRA It include the mark (subscriber-1id) of user -1 in message.

Step S703, DRA are selected as the PCRF of user's access service according to subscriber-1id.DRA is established The corresponding relationship of subscriber-1 id and PCRF information (for example, address of PCRF).

The IP-CAN session establishment request message is transmitted to PCRF by step S704, DRA.

Step S705, PCRF believe according to the signing that the subscriber-1 id in request message obtains user -1 from SPR Breath, while SPR judges that user -1 is present in user group according to subscriber-1 id, SPR, which contracts corresponding user group, to be believed Breath returns to PCRF together.

Fig. 8 is the schematic diagram of the user signing contract information of the embodiment of the present invention two, as shown in figure 8, user signing contract information is at least Including user identifier (subscriber id) and user group mark (group id).Fig. 9 is the user of the embodiment of the present invention two The schematic diagram of group signing information, as shown in figure 9, user group signing information, which includes at least user group, identifies (group id), user Group membership identifies (subscriber id) and signing dosage etc..

PCRF is that user -1 establishes IP-CAN session, and returns to IP-CAN session establishment and successfully respond, the response message In will include that (user group identifies group id and user group member identities to subscriber group information, for example, user -1 identifies Subscirber-1 id and user -2 identify subscriber-2 id), the information will be feedbacked to DRA, so that DRA guarantee is The subsequent user of the user group chooses identical PCRF, can be realized by the following two kinds process (case-1 and case-2):

(1) situation one (Case-1) process:

Step S706a, PCRF are that user -1 establishes IP-CAN session, and returns to IP-CAN session establishment and successfully respond and disappear It ceases, includes subscriber group information in the response message, wherein subscriber group information includes at least user group mark (group id) and uses Family group membership mark (including user -1 identifies subscriber-1 id and user -2 identifies subscriber-2 id).

Step S707a, above-mentioned IP-CAN session establishment response message pass through DRA, and DRA obtains subscriber group information (group Id, subscriber-1id, subscriber-2id), since step S703 has built up subscriber-1 and PCRF information Corresponding relationship, therefore, here DRA combine this two-part information establish subscriber group information (group id, subscriber- 1id, subscriber-2id) and PCRF information corresponding relationship.

It should be noted that above-mentioned steps S706a and step S707a may be: in step S706a, PCRF is being returned In the IP-CAN session establishment response message returned, directly including in step S706 subscriber group information and PCRF information (for example, The address PCRF)；In step S707a, DRA directly establishes and saves the corresponding relationship of subscriber group information and PCRF information.

Above-mentioned IP-CAN session establishment response message is returned to PCEF-1 by step S708a, DRA.User -1 completes network The process of attachment or PDN connection.

(2) situation two (Case-2) process

Step S706b, PCRF return to IP-CAN session establishment response message to PCEF-1, include user in the response message Group information (group id, subscriber-1id, subscriber-2id).It optionally, may include PCRF in response message Information.

Step S707b sends above-mentioned subscriber group information after PCEF-1 receives the IP-CAN session establishment response message To DRA.If step S706b has PCRF information, PCRF information is also sent to DRA by PCEF-1.

Step S708b, according to the corresponding relationship and step of subsriber-1id and PCRF information in step S703 The received subscriber group information of S707b, DRA establish subscriber group information (group id, subscriber-1 id, subscriber-2 ) and the corresponding relationship of PCRF information id.If step S707b also has sent PCRF information, DRA directly establishes subscriber group information With the corresponding relationship of PCRF information.

Step S709-S715 is attached to network for the user -2 in the user group or initiates what PDN connection was established Process:

Step S709, user -2 access network, and PCEF-2 is selected to initiate attach request or PDN connection foundation request, should It include that user -2 identifies (subscriber-2 id) in request message.

Step S710, PCEF-2 send IP-CAN session -2 to DRA and establish request, include in the request message subscriber-2id。

Step S711, DRA believe according to the user group that subscriber-2 id and step S707a or step S708b is established The corresponding relationship of breath and PCRF information selects the PCRF for user -2.

Step S712, DRA initiate IP-CAN session -2 to PCRF and establish request.

Step S713, PCRF obtain the signing information of user -2 according to subscriber-2 id from SPR.PCRF or SPR The subscriber group information transmitted is walked according to subscriber-2 id and step S705, judges that subscriber-2 id is corresponding User -2 belongs to the user group, but subscriber group information has had transmitted to PCRF, therefore, can not have to send out again in this step Send the subscriber group information.

Step S714, PCRF are that user -2 establishes session -2 IP-CAN, and returns to IP-CAN session -2 to PCEF-2 and establish Response.

It should be noted that PCRF can also if the subscriber group information is also sent to PCRF by SPR in step S713 The subscriber group information in step S706a or step S706b is sent to DRA, or DRA is sent to by PCEF-2 (as shown in step S715), corresponding transmission process (case-1 or case-2 when transmission process is with reference to the access network of user -1 The process of description).If the subscriber group information is not sent to PCRF by step S713, user group is updated again to DRA The process of information can be omitted.

Embodiment three

The scene and embodiment two that embodiment three describes are essentially identical, and difference is (to redirect by redirect DRA DRA) identical PCRF is chosen for user -1 and user -2.Figure 10 is the process signal of the selection PCRF of the embodiment of the present invention three Figure, as shown in Figure 10, which includes the following steps:

Step S1001, the user -1 in user group are attached to network or initiate PDN connection and establish to request.Assuming that basis The information (for example, APN) for including in request message chooses PCEF-1, and user -1 initiates the request to PCEF-1.

Step S1002 after PCEF-1 receives the request, sends the request of IP-CAN session establishment, the request to DRA It include the mark (subscriber-1 id) of user -1 in message.

Step S1003, DRA are selected as the PCRF of user's access service according to subscriber-1 id.DRA is established The corresponding relationship of subscriber-1 id and PCRF information (for example, address of PCRF).

Step S1004, DRA return to the PCRF address information to PCEF-1.

The PCRF address information that step S1005, PCEF-1 are returned according to DRA sends IP-CAN session establishment to PCRF and asks It asks, includes subscriber-1 id in the request message.

Step S1006, PCRF obtain the signing of user -1 according to the subscriber-1 id in request message from SPR Information, while SPR judges that user -1 is present in user group according to subscriber-1 id, SPR contracts corresponding user group Information returns to the PCRF together.Wherein, user signing contract information is as shown in figure 8, include at least user identifier (subscriber Id) and user group identifies (group id)；User group signing information includes at least user group and identifies (group id), user group Member identities (subscriber id) and signing dosage etc..

Step S1007, PCRF are that user -1 establishes IP-CAN session, and returns to IP-CAN session establishment and successfully respond and disappear It ceases, includes subscriber group information in the response message, include at least user group mark (group id) and user group member identities (packet It includes user -1 and identifies subscriber-1 id and the mark of user -2 subscriber-2 id).Optionally, subscriber group information also wraps Include PCRF address information.

Step S1008 sends the subscriber group information after PCEF-1 receives the IP-CAN session establishment response message To DRA, if there is PCRF information in step S1007, which is also sent to DRA by PCEF-1.

Step S1009, according to the corresponding relationship and step of subsriber-1 id and PCRF information in step S503 The received subscriber group information of S1008, DRA establish subscriber group information (group id, subscriber-1id, subscriber- 2id) with the corresponding relationship of PCRF information, if step S1008 also has sent PCRF information, DRA directly establishes user group letter The corresponding relationship of breath and PCRF information.

Step S1010-S1016 is that the user -2 in user group is attached to network or initiates the mistake that PDN connection is established Journey:

Step S1010, user -2 access network, and PCEF-2 is selected to initiate attach request or PDN connection foundation request, should It include that user -2 identifies (subscriber-2id) in request message.

Step S1011, PCEF-2 send IP-CAN session -2 to DRA and establish request, include in the request message subscriber-2id。

Step S1012, DRA are according to the subscriber-2id and step S1009 subscriber group information established and PCRF information Corresponding relationship, select the PCRF for user -2.

The PCRF address information selected for user -2 is returned to PCEF-2 by step S1013, DRA.

Step S1014, PCEF-2 send IP-CAN session -2 to PCRF according to PCRF address information and establish request, the request It include subscriber-2 id in message.

Step S1015, PCRF obtain the signing information of user -2 according to subscriber-2 id from SPR.PCRF or The subscriber group information that SPR was transmitted according to subscriber-2 id and step S1006 judges that subscriber-2 id is corresponding User -2 belong to the user group, but subscriber group information has had transmitted to the PCRF, therefore in this step may not be used With retransmiting the subscriber group information.

Step S1016, PCRF are that user -2 establishes session -2 IP-CAN, and returns to IP-CAN session -2 to PCEF-2 and establish Response.

It should be noted that if the subscriber group information is also sent to the PCRF by SPR in step S1015, Subscriber group information in step S1007 can also be sent to DRA(as shown in step S1017 by PCEF-2 by PCRF), it sends Process corresponding transmission process (process that step S1007 and step S1008 are described) when accessing network with reference to user -1.If step The subscriber group information is not sent to PCRF by rapid S1015, then the process for updating subscriber group information again to DRA can be omitted.

Example IV

The scene and embodiment two of example IV description are essentially identical, distinguish in the process that user -1 accesses network, such as Fruit DRA establishes the corresponding relationship of subscriber group information and PCRF information not yet, and the user -2 in user group has initiated to connect at this time Enter the process of network, at this point, how to guarantee the process for choosing the same PCRF for user -1 and user -2.

Figure 11 is the flow diagram of the selection PCRF of the embodiment of the present invention four, and as shown in figure 11, which includes as follows Step:

The process of step S1101-S1105 is identical as the step S701-S705 in embodiment two to be not repeated herein description.

Step S1106-S1111 is the process that user -2 in the user group accesses network, in process generating process, DRA establishes the corresponding relationship of user group and the address PCRF-1 not yet, i.e. the process that Case-1 or Case-2 are described is not yet It completes.

Step S1106, user -2 initiate network attachment or PDN connection request to PCEF-2.

Step S1107, PCEF-2 initiate IP-CAN session -2 to DRA and establish request, include in the request message subscriber-2id。

Step S1108, due to the corresponding subscriber group information of subscriber-2 id no on DRA at this time and the address PCRF Corresponding relationship, at this point, DRA according to subscriber-2 id be user -2 choose PCRF-2, establish subscriber-2 The corresponding relationship of the address id and PCRF-2.

The IP-CAN session -2 is established request message and is sent to PCRF-2 by step S1109, DRA.

Step S1110 obtains user -2 to SPR according to the subscriber-2 id that PCRF-2 in step S1109 is obtained Signing information and user group signing information.

Step S1111, PCRF-2 return to the response that IP-CAN session -2 is successfully established to PCEF-2.

The process and step S1104 of Case-1 and Case-2 description are corresponding, return to IP-CAN session -1 for PCRF-1 and establish It responds, and updates the process of subscriber group information (group id, subscriber-1id, subscriber-2id) on DRA, Corresponding process in process reference implementation example two.

Step S1115, pair established according to the subscriber group information that step S1113a or step S1114b are received and PCRF It should be related to, i.e. the corresponding relationship of (group id, subscriber-1id, subscriber-2id) and the address PCRF-1, and The corresponding relationship for the address subscriber-2 id and PCRF-2 that step S1108 is established, DRA are judged as the use under group-id That family -2 selects is PCRF-2, is not chosen in the corresponding PCRF-1 of group id, DRA is subscriber-2 pairs again The user -2 answered selects PCRF-1.

Step S1116, DRA return to the address of PCRF-1 to PCEF-2, it is desirable that PCEF-2, which is terminated, to be accessed before this for user -2 Session -2 IP-CAN that network is established, re-establish IP-CAN session.

Step S1117, after receiving the message, PCEF-2 initiates the termination to the IP-CAN session -2 of PCRF-2.

Step S1118, PCEF-2 re-initiate the foundation of the IP-CAN session -2 ' of PCRF-1 according to the address of PCRF-1 Process.

Embodiment five

The present embodiment is the process that dosage monitoring is carried out to user group, based on the process that the embodiment of front describes. When the process of the embodiment description of front is realized for all user access networks in user group, all select identical PCRF is its access service, and the present embodiment carries out dosage monitoring by the signing dosage of PCRF management user group for the user group.

Figure 12 is that the PCRF of the embodiment of the present invention five carries out the flow diagram of dosage monitoring to user group, such as Figure 12 institute Show, which includes the following steps:

Step S1201, user -1 commence business

Service negotiation information is handed down to PCRF by step S1202, AF.

Step S1203 is institute according to the service negotiation information and other information (for example, carrier policy etc.), PCRF It states business and carries out strategic decision-making, including generate QoS and charging control strategy.Simultaneously according to preceding embodiment description PCRF from User group signing information (including dosage of the contracting) PCRF obtained in SPR is that the business that the user carries out carries out dosage prison Decision is controlled, including distributes monitoring key for the Business Stream, and can be described with signing dosage according to user group Monitoring key allocation threshold (threshold-1).

Control strategy and dosage monitoring are handed down to PCEF-1 by step S1204, PCRF.

Step S1205, the information issued according to PCRF, PCEF-1 start dosage monitoring.

Step S1206, when accumulative dosage reaches the threshold-1 of PCRF distribution, PCEF-1 reports accumulative dosage, The new threshold value that PCRF can redistribute according to reported result continues implementing monitoring, or terminates dosage monitoring.

Step S1207, the user -2 in user group commence business.

Service negotiation information is handed down to PCRF by step S1208, AF.

Step S1209, PCRF carry out strategic decision-making, while carrying out dosage monitoring decision, the as described traffic assignments Monitoring key-2, while being the monitoring key allocation threshold according to the available signing dosage of user group (threshold-2).

Control strategy and dosage monitoring are handed down to PCEF-2 by step S1210, PCRF

Step S1211, PCEF-2 monitor the initiation of services dosage that user -2 carries out according to the information issued.

Step S1212, when accumulative dosage reaches threshold-2, PCEF-2 executes dosage supervision and reporting, and PCRF is accordingly It carries out dosage distributing, or terminates dosage monitoring.Related dosage monitoring decision, the process for issuing and reporting are referred to completely Existing dosage monitors realization mechanism, is no longer described in detail.

In conclusion using DRA the embodiment of the invention provides the selection scheme of PCRF a kind of to belong to same user The mode of the identical PCRF of IP-CAN session establishment request selecting of the user of group, ensure that and choose for the user in user group The same PCRF realizes the demand to the monitoring of user group dosage.

Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, so as to be stored in It is performed by computing device in storage device, perhaps they are fabricated to each integrated circuit modules or will be in them Multiple modules or step be fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hard Part and software combine.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (11)

1. a kind of selection method of "Policy and Charging Rules Function PCRF, which comprises the following steps:

The user for the user group that the PCRF that Diameter route agent DRA is received as the first user service in user group is sent Group information, wherein the subscriber group information includes at least: the use for all users that user group mark and user group are included Family mark；

The DRA is the other users choosing in the user group according to the address information of the subscriber group information and the PCRF Select the PCRF；

Wherein, the DRA is that the other users selection PCRF in the user group includes:

Whether the DRA is judged as PCRF that first user selects and PCRF for other users selection in the user group It is identical；

If it is not the same, then the DRA notification strategy and charge execution function PCEF are other use in the user group again Family carries out PCRF selection, wherein the PCRF reselected is for the PCRF of first user service, includes being in the notice The address information of the PCRF of first user service.

2. the method according to claim 1, wherein the DRA receives the user group that the PCRF is sent Before information, further includes:

The subscriber group information is transmitted directly to the DRA or the PCRF and sends out the subscriber group information by the PCRF Strategy and charge execution function PCEF are given, the subscriber group information is sent to the DRA by the PCEF.

3. according to the method described in claim 2, it is characterized in that, the PCRF subscriber group information is sent to it is described Before DRA, further includes:

The PCRF obtains the user of the user group according to the user identifier of first user from user-subscribed database SPR Group information.

4. the method according to claim 1, wherein the DRA is the other users selection in the user group Before the PCRF, further includes:

The DRA receives the address information for the PCRF that the PCRF is sent.

5. the method according to claim 1, wherein the DRA receives the user group that the PCRF is sent Subscriber group information after, further includes:

The DRA establishes the corresponding relationship of the address information of the subscriber group information and the PCRF.

6. according to the method described in claim 5, it is characterized in that, first user be the DRA establish for the first time it is described right When should be related to, user that the PCRF is serviced.

7. the method according to claim 1, wherein it is the user group that the DRA, which notifies the PCEF again, Interior other users carry out after PCRF selection, further includes:

The PCEF terminates the IP connected reference network IP-CAN session with original PCRF, and establishes and service first user's IP-CAN session between PCRF.

8. the method according to claim 1, wherein the DRA is the other users selection in the user group After the PCRF, further includes:

The PCRF commences business for the user in the user group according to the signing dosage information of the user group and carries out dosage Decision is monitored, and issues user monitoring to strategy and charge execution function PCEF.

9. a kind of selection device of "Policy and Charging Rules Function PCRF, is located at Diameter route agent DRA, feature exists In, comprising:

Receiving module, the user group letter for the user group that the PCRF for being received as the first user service in user group is sent Breath, wherein the subscriber group information includes at least: the user's mark for all users that user group mark and user group are included Know；And

Selecting module, the address information of the subscriber group information and the PCRF for being received according to the receiving module, The PCRF is selected for the other users in the user group；

Judgment module, for be judged as PCRF that first user selects with for other users selection in the user group Whether PCRF is identical；And

Processing module, for the judgment module be judged as PCRF that first user selects in the user group its In the different situation of PCRF of his user's selection, notification strategy and charge execution function PCEF are in the user group again Other users carry out PCRF selection, wherein the PCRF reselected is for the PCRF of first user service, in the notice Address information including the PCRF for first user service.

10. selection device according to claim 9, which is characterized in that further include:

Module is established, the corresponding relationship of the address information for establishing the subscriber group information and the PCRF.

11. a kind of selection system of "Policy and Charging Rules Function PCRF, which is characterized in that including PCRF, user contracting data DRA described in any one of library SPR and claim 9 to 10, wherein

The PCRF includes: acquisition forwarding module, for obtaining the user of user group belonging to first user from the SPR Group information, and the subscriber group information is sent to the DRA；

The SPR includes: that inquiry issues module, for according to the instructions query of the PCRF and issuing the subscriber group information.