CN104754657A - Strategy control method, strategy executing and transmitting device - Google Patents

Strategy control method, strategy executing and transmitting device Download PDF

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Publication number
CN104754657A
CN104754657A CN201310745233.XA CN201310745233A CN104754657A CN 104754657 A CN104754657 A CN 104754657A CN 201310745233 A CN201310745233 A CN 201310745233A CN 104754657 A CN104754657 A CN 104754657A
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China
Prior art keywords
filter
rule
tft
carrying
indication information
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CN201310745233.XA
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Chinese (zh)
Inventor
周晓云
梁爽
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ZTE Corp
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ZTE Corp
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Priority to CN201310745233.XA priority Critical patent/CN104754657A/en
Priority to PCT/CN2014/080662 priority patent/WO2015100972A1/en
Publication of CN104754657A publication Critical patent/CN104754657A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0894—Policy-based network configuration management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system

Abstract

The invention discloses a strategy control method, a strategy executing and transmitting device. According to the method, a strategy executing entity acquires a strategy rule sent by PCRF, the strategy rule carries a filter and indication information, the indication information is used for indicating the strategy executing entity to determine whether to send the filter to UE or not according to the bearing type that the strategy rule is bound or according to the bearing type and whether TFT is at present on bearing or not; the strategy executing entity is used for determining whether to send the filter to UE or not according to the indication information. According to the technical scheme, the strategy executing entity can accurately master the opportunity for sending the filter to UE according to the indication information sent by the PCRF, thus the PCRF can accurately indicate the PCRF or BBERF to send the filter to the UE.

Description

Policy control method, strategy execution and lower transmitting apparatus
Technical field
The present invention relates to the communications field, in particular to a kind of policy control method, strategy execution and lower transmitting apparatus.
Background technology
Fig. 1 is third generation partner program (the 3rd Generation Partnership Project according to correlation technique, referred to as 3GPP) strategy that defines and charging control the configuration diagram of (Policy and Charging Control, referred to as PCC).As shown in Figure 1, "Policy and Charging Rules Function (Policy and Charging Rules Function, referred to as PCRF) uses Internet resources to carry out the formulation of service quality (Quality of Service, referred to as QoS) and charging policy for business.And PCRF formulates the combination of above-mentioned control strategy needs from application function (Application Function, referred to as AF) business information that receives, from user-subscribed database (Subscription Profile Repository, referred to as SPR) user signing contract information that receives, the strategy etc. of operator's configuration.The control strategy formulated for business is handed down to strategy and charge execution function (Policy andCharging Enforcement Function by PCRF, referred to as PCEF) or bearing binding and reporting events function (Bearer Bindingand Event Report Function, referred to as BBERF) perform.Meanwhile, PCRF can subscribe to bearing bed dependent event to PCEF and/or BBERF, can perception in time when there is above-mentioned event with convenient bearing bed, and changes control strategy.In addition, PCEF and business measuring ability (Traffic Detection Function, referred to as TDF) the PCC rule (PCEF) that can issue according to PCRF or application and detection control (Application Detection and Control, referred to as ADC) rule (TDF) perform and apply detection and control function.
PCC can support that multiple Internet protocol (IP) connects Access Network (IP Connectivity Access Network, referred to as IP-CAN), for example: grouping system (the Evolved Packet System of evolution, referred to as EPS), GPRS (General Packet Radio System, referred to as GPRS).
Ensure to realize QoS end to end, 3GPP network provides the QoS based on carrying granularity to ensure.The business being mapped to same carrying carries out forward process by being used identical bearing bed bag.Different bearing bed Packet forwarding process is if desired provided, then needs Business Stream to be mapped in different carryings.Under normal conditions, each carrying has a filter template associated (traffic flow template, referred to as TFT).Uplink service flow template (UL TFT) is the uplink packet filter set in TFT.Downlink business flow template (DL TFT) is the downstream packets filter set in TFT.Each Packet Data Network (PDN) allows existence carrying not have TFT in connecting.And for EPS IP-CAN, default bearing may not have TFT.
Subscriber equipment (UE) uses UL TFT the business of up direction to be mapped to an EPS carrying.PCEF(GTP-basedS5/S8) or BBERF(PMIP-based S5/S8) then use DL TFT down direction business to be mapped to an EPS carrying.Such as: UE is associated with the UL TFT of carrying based on distributing, upstream data bag is mapped to different EPS carryings.When user is mated, first compare the IP filter in the UL TFT of lowest priority, and when not finding coupling, continue to perform the comparison of upstream data IP filter by increasing priority order.When finding coupling or all uplink packet filter all by after relatively, whole process terminates.If the coupling of finding, the EPS carrying of the TFT at the uplink packet filter place by coupling association transmits by upstream data bag.And if do not find coupling, upstream data bag will be sent by the EPS carrying by also not distributing uplink packet filter.If whole EPS carrying (comprising the default EPS carrying that PDN is corresponding) has been assigned with one or more uplink packet filters, so UE will abandon upstream data bag.
Above-mentioned carrying can be unidirectional, and for descending unidirectional carrying, except the DL TFT that this carrying exists an association, also need the up filter of existence one to refuse all upstream datas, be matched in this descending unidirectional carrying to prevent UE upstream data.
In the related, if default bearing does not have TFT, then represent that any TFT data cannot mating dedicated bearing can be transmitted by not having the default bearing of TFT.
Comprise a business data flow filter template (SDF template) in PCC or the QoS rule that PCRF issues, in SDFtemplate, usually can comprise one or more business datum flow filter (SDF packet filter).PCRF can provide a PCC or QoS rule comprising (wild-carded) business datum flow filter of wildcard, to allow the packet that cannot mate other any PCC or QoS rules to pass through.
When PCEF or BBERF install or activate PCRF provide PCC rule or QoS regular after, PCEF or BBERF keeps priority (ARP) to perform bearing binding according to the QoS class letter (QCI) in rule/distribution, and constructs TFT to be sent to UE according to the SDF template in rule.Although the rule of identical QCI/ARP can be tied in same carrying, but be not the rule of identical QCI/ARP be always tied to same carrying (such as, because a TFT middle filtrator number is conditional, therefore may there is the carrying of more than one identical QCI/ARP).Therefore, when providing PCC rule/QoS rule, PCRF cannot determine which carrying is rule be tied in, and PCEF/BBERF finally determines PCC/QoS rule to be tied in specific carrying.
In the process of IP-CAN session establishment, PCRF may to PCEF or BBERF providing package containing the PCC rule of wildcard business datum flow filter or QoS is regular cannot mate other any PCC rules or the regular packets of QoS pass through to allow, and the business datum flow filter comprising asterisk wildcard is not also sent to UE by PCEF or BBERF.So, default bearing just do not have TFT.After this, PCRF likely provides other PCC rule or QoS is regular also these rules may be tied on default bearing to PCEF or BBERF, PCEF or BBERF, but, if the filter of these rules does not send to UE, so default bearing does not still have TFT.
But when PCRF provides PCC rule and QoS rule respectively to PCEF and BBERF, and indicating services data stream filters needs to send to UE.If PCC rule and QoS rule are tied to default bearing by PCEF and BBERF respectively, then because business datum flow filter has sent to UE, and cause originally can the data on default bearing to transmit on default bearing.
Under special circumstances, if PCRF finds when the rule of authorizing only has descending one way traffic data stream filters, PCRF can add the filter (i.e. a packet filter for the uplink direction thateffectively disallows any useful uplink packet flows) of any uplink business data stream of refusal.In such cases, if rule is tied to default bearing by PCEF, BBERF, and the up filter of all business data flows of refusal is sent to UE by PCEF, BBERF, and the uplink business data that so originally can transmit on default bearing all cannot transmit.The filter of any uplink business data stream of refusal can be expressed as usually:
Packet Filter Direction=uplink only;and Remote port=9(the discard port)。
As can be seen here, lacking a kind of PCRF that can make in correlation technique can correctly indicate PCEF or BBERF to send the method for filter to UE.
Summary of the invention
The invention provides a kind of policy control method, strategy execution and lower transmitting apparatus, cannot correctly indicate PCEF or BBERF to send the problem of filter to UE with the PCRF at least solved in correlation technique.
According to an aspect of the present invention, a kind of policy control method is provided.
Policy control method according to the present invention comprises: policy execution entity obtains the policing rule that PCRF issues, wherein, filter and indication information is carried in policing rule, indication information is used to indicate the type of the carrying that policy execution entity is bound to according to policing rule, or, according to whether the type carried and carrying existing TFT determine whether to send filter to UE; Policy execution entity determines whether to send filter to UE according to indication information.
Preferably, if according to indication information, policy execution entity determines that the type carried is dedicated bearing, then policy execution entity sends filter to UE.
Preferably, if according to indication information, policy execution entity determines that the type carried is default bearing and default bearing exists TFT, then policy execution entity sends filter to UE; Or if according to indication information, policy execution entity determines that the type carried is default bearing and default bearing does not exist TFT, then policy execution entity does not send filter to UE.
Preferably, the TFT of structure after according to filter structure TFT, is sent to UE by IP-CAN carrier signaling by policy execution entity.
Preferably, indication information is one of following: explicit indication parameter, predefined filter value.
Preferably, predefine filter value is refuse the filter of any uplink business data stream.
Preferably, policy execution entity is one of following: PCEF, BBERF.
Preferably, control strategy rule is one of following: PCC rule, QoS are regular.
According to a further aspect in the invention, a kind of policy enforcement means is provided.
Policy enforcement means according to the present invention comprises: acquisition module, for obtaining the policing rule that PCRF issues, wherein, filter and indication information is carried in policing rule, indication information is used to indicate the type of the carrying that policy execution entity is bound to according to policing rule, or, according to whether the type carried and carrying existing TFT determine whether to send filter to UE; Determination module, sends filter for determining whether according to indication information to UE.
Preferably, determination module, for when the type determining according to indication information to carry is dedicated bearing, sends filter to UE.
Preferably, determination module, for when determining that according to indication information the type carried is default bearing and there is TFT on default bearing, sends filter to UE; Or determination module, for when determining that according to indication information the type carried is default bearing and default bearing does not exist TFT, does not send filter to UE.
According to a further aspect in the invention, a kind of policy distribution device is provided.
Policy distribution device according to the present invention comprises: issue module, for regular to policy execution entity distributing policy, wherein, filter and indication information is carried in policing rule, indication information is used to indicate the type of the carrying that policy execution entity is bound to according to policing rule, or, according to whether the type carried and carrying existing filter template TFT determine whether to send filter to user equipment (UE).
Pass through the embodiment of the present invention, adopt the policing rule that policy execution entity acquisition PCRF issues, wherein, filter and indication information is carried in policing rule, this indication information is used to indicate the type of the carrying that policy execution entity is bound to according to policing rule, or, according to whether the type carried and carrying existing TFT determine whether to send filter to UE, policy execution entity determines whether to send filter to UE according to indication information, namely PCRF by adding indication information in the control strategy rule issued to policy execution entity, determine whether to send filter to UE according to indication information to make policy execution entity, and this indication information is according to the type with the regular carrying of binding of control strategy, or, according to whether the type of carrying and the carrying of the type exist, TFT determines, the PCRF solved thus in correlation technique cannot correctly indicate PCEF or BBERF to send the problem of filter to UE, and then achieve indication information accurate assurance that policy execution entity can issue according to PCRF sends opportunity from filter to UE, thus make PCRF correctly to indicate PCEF or BBERF to send filter to UE.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the configuration diagram of the PCC defined according to the 3GPP of correlation technique;
Fig. 2 is the flow chart of the policy control method according to the embodiment of the present invention;
Fig. 3 is according to the preferred embodiment of the invention under the scene lacking BBERF, after PCRF issues rule, and the flow chart of PCEF more new bearer TFT;
Fig. 4 is according to the preferred embodiment of the invention when under the scene that there is BBERF, after PCRF issues QoS rule, and the more flow chart of new bearer TFT;
Fig. 5 is according to the preferred embodiment of the invention when under the scene that there is not BBERF, after PCRF issues rule according to the resource request of UE, and the flow chart of PCEF more new bearer TFT;
Fig. 6 is according to the preferred embodiment of the invention when under the scene that there is BBERF, after PCRF issues QoS rule according to the resource request of UE, and the more flow chart of new bearer TFT;
Fig. 7 is the structured flowchart of the policy enforcement means according to the embodiment of the present invention;
Fig. 8 is the structured flowchart of the policy distribution device according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Fig. 2 is the flow chart of the policy control method according to the embodiment of the present invention.As shown in Figure 2, the method can comprise following treatment step:
Step S202: policy execution entity obtains the policing rule that PCRF issues, wherein, filter and indication information is carried in policing rule, this indication information is used to indicate the type of the carrying that policy execution entity is bound to according to policing rule, or, according to whether the type carried and carrying existing TFT determine whether to send filter to UE;
Step S204: policy execution entity determines whether to send filter to UE according to indication information.
In correlation technique, PCRF cannot correctly indicate PCEF or BBERF to send filter to UE.Adopt method as shown in Figure 2, PCRF by adding indication information in the control strategy rule issued to policy execution entity, determine whether to send filter to UE according to indication information to make policy execution entity, and this indication information is according to the type with the regular carrying of binding of control strategy, or, according to whether the type of carrying and the carrying of the type exist, TFT determines, the PCRF solved thus in correlation technique cannot correctly indicate PCEF or BBERF to send the problem of filter to UE, and then achieve indication information accurate assurance that policy execution entity can issue according to PCRF sends opportunity from filter to UE, thus make PCRF correctly to indicate PCEF or BBERF to send filter to UE.
In preferred implementation process, above-mentioned policy execution entity can be, but not limited to as one of following: PCEF, BBERF; Above-mentioned control strategy rule can be, but not limited to as one of following: PCC rule, QoS are regular; Above-mentioned indication information can be, but not limited to as one of following: explicit indication parameter, predefined filter value.
In preferred implementation process, above-mentioned predefine filter value can be the filter of any uplink business data stream of refusal.
Preferably, in step S204, if according to indication information, policy execution entity determines that the type carried is dedicated bearing, then policy execution entity sends filter to UE.
Preferably, in step S204, if according to indication information, policy execution entity determines that the type carried is default bearing and there is TFT on default bearing, then policy execution entity sends filter to UE; Or if according to indication information, policy execution entity determines that the type carried is default bearing and default bearing does not exist TFT, then policy execution entity does not send filter to UE.
Preferably, in step S204, the TFT of structure after according to filter structure TFT, is sent to UE by IP-CAN carrier signaling by policy execution entity.
Below in conjunction with the preferred implementation shown in Fig. 3 to Fig. 6, above-mentioned preferred implementation process is further described.
Preferred embodiment one:
Fig. 3 is according to the preferred embodiment of the invention under the scene lacking BBERF, after PCRF issues rule, and the flow chart of PCEF more new bearer TFT.As shown in Figure 3, this flow process can comprise following treatment step:
Step S302:PCEF gets the request message that IP-CAN session is set up in request, and wherein, the information of carrying in this request message can include but not limited to: user ID, PDN identify.
Step S304:PCEF sends credit control request (CCR) message based on Diameter to PCRF, and wherein, the information of carrying in this CCR message can include but not limited to: user ID, PDN mark, IP address.
Step S306:PCRF is signing according to user, network strategy and IP-CAN beared information etc. carry out strategic decision-making, wherein, can comprise: formulate acquiescence PCC rule, if PCRF does not have user-dependent CAMEL-Subscription-Information, then PCRF needs to carry out alternately, to obtain the CAMEL-Subscription-Information of user with SPR.
The diameter credit control that step S308:PCRF returns based on Diameter to PCEF responds (CCA) message, and wherein, the corresponding strategies of carrying in this CCA message can comprise: the PCC rule of acquiescence.
Step S310:PCEF returns and sets up IP-CAN session response message, and wherein, the information of carrying in this response message can include but not limited to: IP address information, now, default bearing does not exist relevant TFT.
Step S312:PCEF may initiate to carry associative operation, wherein, can include but not limited to: the amendment of default bearing, the establishment of dedicated bearing; And for the amendment of default bearing, PCEF may send to TFT further according to the business data flow structure of transvers plate TFT be tied in the PCC rule of default bearing.
So far, IP-CAN session establishment completes, and there is at least one PCC rule and is tied to default bearing, but default bearing can have TFT, also can not have TFT, it depends on the decision-making of PCRF and PCEF.For example: in the PCC rule being tied to default bearing by PCEF, do not carry filter send instruction.
Step S314: in the lifetime process of IP-CAN session, PCRF carries out decision-making renewal.PCRF formulates PCC rule, and the QCI/ARP of this PCC rule is identical with the QCI/ARP of default bearing.
If the business datum flow filter that comprises of PCRF decision-making PCC rule needs to send to UE, so PCRF can comprise and unconditionally sends instruction in PCC rule;
If PCRF decision-making is when PCC rule is bound to default bearing and default bearing does not have a TFT, then the filter that PCC rule comprises does not send to UE; And when PCC rule be bound to dedicated bearing or PCC rule be bound to default bearing and default bearing has TFT time, and when needing the filter that PCC rule comprises to be sent to UE, so PCRF can comprise condition transmission instruction in PCC rule, with instruction when PCC rule is bound to default bearing and default bearing does not have a TFT, the filter that PCC rule comprises does not send to UE, and when PCC rule be tied to dedicated bearing or PCC rule be tied to default bearing and default bearing has a TFT time, the filter that PCC rule comprises can send to UE.
It should be noted that, if PCRF finds when the rule of authorizing only has descending one way traffic data stream filters, PCRF can add the filter of any uplink business data stream of refusal.Now, this filter refusing any uplink business data stream can think that a condition sends instruction.Certain operator also can in some filter values of PCRF, PCEF predefine, and when PCEF receives the filter of this value, it is that a kind of condition sends instruction that PCEF can be understood as.(filter refusing any uplink business data stream can think a kind of predefine filter value.）
Step S316:PCRF sends authentication request again (RAR) message based on Diameter to PCEF, and wherein, the information of carrying in this RAR message can include but not limited to: PCC rule, comprises filter and send instruction in this PCC rule.
Step S318:PCEF installs PCC rule, and returns authentication response again (RAA) message based on Diameter.
Step S320: unconditionally send instruction if carry in PCC rule, so no matter whether PCEF is tied to dedicated bearing or default bearing by PCC rule, PCEF by according to the business data flow filter structure TFT in PCC rule, and sends to UE by IP-CAN carrier signaling.
If the condition that carries in PCC rule sends instruction, if then PCEF PCC rule is tied to dedicated bearing or PCC rule is tied to default bearing and default bearing TFT time, then PCEF can be sent to UE by IP-CAN carrier signaling according to the PCC rule filter structure TFT that comprise; And if PCC rule is tied to default bearing by PCEF and default bearing does not have a TFT time, then the filter that PCC rule comprises can not be sent to UE by PCEF.
It should be noted that, when PCEF detects that the PCC rule that PCRF issues comprises the filter that is refused any uplink business data stream, so PCEF will be interpreted as that a condition sends instruction, and perform corresponding operation, even PCEF PCC rule is tied to dedicated bearing or PCC rule is tied to default bearing and default bearing TFT time, then PCEF can be sent to UE by IP-CAN carrier signaling according to the PCC rule filter structure TFT that comprise; And if PCC rule is tied to default bearing by PCEF and default bearing does not have a TFT time, then the filter that PCC rule comprises can not be sent to UE by PCEF.
Preferred embodiment two:
Fig. 4 is according to the preferred embodiment of the invention when under the scene that there is BBERF, after PCRF issues QoS rule, and the more flow chart of new bearer TFT.As shown in Figure 4, this flow process can comprise following treatment step:
Step S402:BBERF gets the request message that IP-CAN session is set up in request, and wherein, the information of carrying in this request message can include but not limited to: user ID, PDN identify.
Step S404:BBERF sends credit control request (CCR) message based on Diameter to PCRF, and wherein, the information of carrying in this CCR message can include but not limited to: user ID, PDN mark, IP address, gateway control session is set up in request.
Step S406:PCRF is signing according to user, network strategy and IP-CAN beared information etc. carry out strategic decision-making, wherein, can comprise: formulate acquiescence PCC rule and corresponding QoS rule.If PCRF does not have user-dependent CAMEL-Subscription-Information, then PCRF needs to carry out alternately, to obtain the CAMEL-Subscription-Information of user with SPR.
The diameter credit control that step S408:PCRF returns based on Diameter to BBERF responds (CCA) message, and wherein, the corresponding strategies of carrying in this CCA message can comprise: the QoS rule of acquiescence.
The gateway at step S410:BBERF place sends to the gateway at PCEF place the request message setting up IP-CAN session, and wherein, the information of carrying in this request message can include but not limited to: user ID, PDN identify.
Step S412:PCEF sends credit control request (CCR) message based on Diameter to PCRF, and wherein, the information of carrying in this CCR message can include but not limited to: user ID, PDN mark, IP address, Gx session is set up in request.
Step S414:PCRF is according to user ID, and gateway control session associates with Gx session by PDN mark, and the PCC rule of above-mentioned formulation is sent to PCEF by PCRF.
The gateway at step S416:PCEF place returns to the gateway at BBERF place and sets up IP-CAN session response message, and wherein, the information of carrying in this response message can include but not limited to: IP address information, now, default bearing does not exist relevant TFT.
The gateway at step S418:BBERF place returns sets up IP-CAN session response message, and wherein, the information of carrying in this response message can include but not limited to: IP address information, now, default bearing does not exist relevant TFT.
Step S420:BBERF may initiate to carry associative operation, wherein, can include but not limited to: the amendment of default bearing, the establishment of dedicated bearing; And for the amendment of default bearing, BBERF may send to TFT further according to the business data flow structure of transvers plate TFT be tied in the BBERF rule of default bearing.
So far, IP-CAN session establishment completes, and there is at least one QoS rule and is tied to default bearing, but default bearing can have TFT, also can not have TFT, it depends on the decision-making of PCRF and PCEF.For example: in the QoS rule being tied to default bearing by PCEF, do not carry filter send instruction.
Step S422: in the lifetime process of IP-CAN session, PCRF carries out decision-making renewal.PCRF formulates PCC rule and corresponding QoS rule, and the QCI/ARP of this PCC/QoS rule is identical with the QCI/ARP of default bearing.
If the business datum flow filter that comprises of PCRF decision-making QoS rule needs to send to UE, so PCRF can comprise and unconditionally sends instruction in QoS rule;
If PCRF decision-making is when QoS rule is bound to default bearing and default bearing does not have a TFT, then the filter that QoS rule comprises does not send to UE; And when QoS rule be bound to dedicated bearing or QoS rule be bound to default bearing and default bearing has TFT time, and when needing the filter that QoS rule comprises to be sent to UE, so PCRF can comprise condition transmission instruction in QoS rule, with instruction when QoS rule is bound to default bearing and default bearing does not have a TFT, the filter that QoS rule comprises does not send to UE, and when QoS rule be tied to dedicated bearing or QoS rule be tied to default bearing and default bearing has a TFT time, the filter that QoS rule comprises can send to UE.
It should be noted that, if PCRF finds when the rule of authorizing only has descending one way traffic data stream filters, PCRF can add the filter of any uplink business data stream of refusal.Now, this filter refusing any uplink business data stream can think that a condition sends instruction.Certain operator also can in some filter values of PCRF, BBERF predefine, and when BBERF receives the filter of this value, it is that a kind of condition sends instruction that BBERF can be understood as.(filter refusing any uplink business data stream can think a kind of predefine filter value.）
Step S424:PCRF sends authentication request again (RAR) message based on Diameter to BBERF, and wherein, the information of carrying in this RAR message can include but not limited to: QoS rule, comprises filter and send instruction in this QoS rule.
Step S426:BBERF installs QoS rule, and returns authentication response again (RAA) message based on Diameter.
Step S428: unconditionally send instruction if carry in QoS rule, so no matter whether BBERF is tied to dedicated bearing or default bearing by QoS rule, BBERF by according to the business data flow filter structure TFT in QoS rule, and sends to UE by IP-CAN carrier signaling.
If the condition that carries in QoS rule sends instruction, if then BBERF QoS rule is tied to dedicated bearing or QoS rule is tied to default bearing and default bearing TFT time, then BBERF can be sent to UE by IP-CAN carrier signaling according to the QoS rule filter structure TFT that comprise; And if QoS rule is tied to default bearing by BBERF and default bearing does not have a TFT time, then the filter that QoS rule comprises can not be sent to UE by BBERF.
It should be noted that, when BBERF detects that the QoS rule that PCRF issues comprises the filter that is refused any uplink business data stream, so BBERF will be interpreted as that a condition sends instruction, and perform corresponding operation, even BBERF QoS rule is tied to dedicated bearing or QoS rule is tied to default bearing and default bearing TFT time, then BBERF can be sent to UE by IP-CAN carrier signaling according to the QoS rule filter structure TFT that comprise; And if QoS rule is tied to default bearing by BBERF and default bearing does not have a TFT time, then the filter that QoS rule comprises can not be sent to UE by BBERF.
Step S430:PCRF sends authentication request again (RAR) message based on Diameter to PCEF, and wherein, the information of carrying in this RAR message can include but not limited to: PCC rule.
Step S432:PCEF installs PCC rule, and returns authentication response again (RAA) message based on Diameter.
Preferred embodiment three:
Fig. 5 is according to the preferred embodiment of the invention when under the scene that there is not BBERF, after PCRF issues rule according to the resource request of UE, and the flow chart of PCEF more new bearer TFT.As shown in Figure 5, this flow process can comprise following treatment step:
Step S502:PCEF gets the request message that IP-CAN session is set up in request, and wherein, the information of carrying in this request message can include but not limited to: user ID, PDN identify.
Step S504:PCEF sends credit control request (CCR) message based on Diameter to PCRF, and wherein, the information of carrying in this CCR message can include but not limited to: user ID, PDN mark, IP address.
Step S506:PCRF is signing according to user, network strategy and IP-CAN beared information etc. carry out strategic decision-making, wherein, can comprise: formulate acquiescence PCC rule, if PCRF does not have user-dependent CAMEL-Subscription-Information, then PCRF needs to carry out alternately, to obtain the CAMEL-Subscription-Information of user with SPR.
The diameter credit control that step S508:PCRF returns based on Diameter to PCEF responds (CCA) message, and wherein, the corresponding strategies of carrying in this CCA message can comprise: the PCC rule of acquiescence.
Step S510:PCEF returns and sets up IP-CAN session response message, and wherein, the information of carrying in this response message can include but not limited to: IP address information, now, default bearing does not exist relevant TFT.
Step S512:PCEF may initiate to carry associative operation, wherein, can include but not limited to: the amendment of default bearing, the establishment of dedicated bearing; And for the amendment of default bearing, PCEF may send to TFT further according to the business data flow structure of transvers plate TFT be tied in the PCC rule of default bearing.
So far, IP-CAN session establishment completes, and there is at least one PCC rule and is tied to default bearing, but default bearing can have TFT, also can not have TFT, it depends on the decision-making of PCRF and PCEF.For example: in the PCC rule being tied to default bearing by PCEF, do not carry filter send instruction.
Step S514: in the lifetime process of IP-CAN session, PCEF gets IP-CAN carrier signaling, the i.e. bearing resource modify request messages of UE initiation, wherein, the information of carrying in this request message comprises: the filter that UE request increases newly or revises and possible QoS information.
Step S516:PCEF sends credit control request (CCR) message based on Diameter to PCRF, and wherein, the information of carrying in this CCR message can include but not limited to: the filter that UE request increases newly or revises and possible QoS information.
Step S518:PCRF carries out decision-making renewal according to the request of UE.PCRF formulates PCC rule, and the QCI/ARP of this PCC rule is identical with the QCI/ARP of default bearing.
If the business datum flow filter that comprises of PCRF decision-making PCC rule needs to send to UE, so PCRF comprises and unconditionally sends instruction in PCC rule;
If PCRF decision-making is when PCC rule is bound to default bearing and default bearing does not have a TFT, the filter that then PCC rule comprises does not send to UE, and when PCC rule be bound to dedicated bearing or PCC rule be bound to default bearing and default bearing has TFT time, and when needing the filter that PCC rule comprises to be sent to UE, so PCRF can comprise condition transmission instruction in PCC rule, with instruction when PCC rule is bound to default bearing and default bearing does not have a TFT, the filter that PCC rule comprises does not send to UE, and when PCC rule be tied to dedicated bearing or PCC rule be tied to default bearing and default bearing has a TFT time, the filter that PCC rule comprises sends to UE.
It should be noted that, if PCRF finds when the rule of authorizing only has descending one way traffic data stream filters, PCRF can add the filter of any uplink business data stream of refusal.Now, this filter refusing any uplink business data stream can think that a condition sends instruction.Certain operator also can in some filter values of PCRF, PCEF predefine, and when PCEF receives the filter of this value, it is that a kind of condition sends instruction that PCEF can be understood as.(filter refusing any uplink business data stream can think a kind of predefine filter value.）
The diameter credit control that step S520:PCRF returns based on Diameter to PCEF responds (CCA) message, and wherein, the corresponding strategies of carrying in this CCA message can comprise: the PCC rule of acquiescence, comprises filter and send instruction in this PCC rule.
Step S522:PCEF installs PCC rule and performs.
If carry in PCC rule and unconditionally send instruction, so no matter whether PCEF is tied to dedicated bearing or default bearing by PCC rule, PCEF by according to the business data flow filter structure TFT in PCC rule, and sends to UE by IP-CAN carrier signaling.
If the condition that carries in PCC rule sends instruction, if then PCEF PCC rule is tied to dedicated bearing or PCC rule is tied to default bearing and default bearing TFT time, then PCEF can be sent to UE by IP-CAN carrier signaling according to the PCC rule filter structure TFT that comprise; And if PCC rule is tied to default bearing by PCEF and default bearing does not have a TFT time, then the filter that PCC rule comprises can not be sent to UE by PCEF.
It should be noted that, when PCEF detects that the PCC rule that PCRF issues comprises the filter that is refused any uplink business data stream, so PCEF will be interpreted as that a condition sends instruction, and perform corresponding operation, even PCEF PCC rule is tied to dedicated bearing or PCC rule is tied to default bearing and default bearing TFT time, then PCEF can be sent to UE by IP-CAN carrier signaling according to the PCC rule filter structure TFT that comprise; And if PCC rule is tied to default bearing by PCEF and default bearing does not have a TFT time, then the filter that PCC rule comprises can not be sent to UE by PCEF.
Preferred embodiment four:
Fig. 6 is according to the preferred embodiment of the invention when under the scene that there is BBERF, after PCRF issues QoS rule according to the resource request of UE, and the more flow chart of new bearer TFT.As shown in Figure 6, this flow process can comprise following treatment step:
Step S602:BBERF gets the request message that IP-CAN session is set up in request, and wherein, the information of carrying in this request message can include but not limited to: user ID, PDN identify.
Step S604:BBERF sends credit control request (CCR) message based on Diameter to PCRF, and wherein, the information of carrying in this CCR message can include but not limited to: user ID, PDN mark, IP address, gateway control session is set up in request.
Step S606:PCRF is signing according to user, network strategy and IP-CAN beared information etc. carry out strategic decision-making, wherein, can comprise: formulate acquiescence PCC rule and corresponding QoS rule.If PCRF does not have user-dependent CAMEL-Subscription-Information, then PCRF needs to carry out alternately, to obtain the CAMEL-Subscription-Information of user with SPR.
The diameter credit control that step S608:PCRF returns based on Diameter to BBERF responds (CCA) message, and wherein, the corresponding strategies of carrying in this CCA message can comprise: the QoS rule of acquiescence.
The gateway at step S610:BBERF place sends to the gateway at PCEF place the request message setting up IP-CAN session, and wherein, the information of carrying in this request message can include but not limited to: user ID, PDN identify.
Step S612:PCEF sends credit control request (CCR) message based on Diameter to PCRF, and wherein, the information of carrying in this CCR message can include but not limited to: user ID, PDN mark, IP address, Gx session is set up in request.
Step S614:PCRF is according to user ID, and gateway control session associates with Gx session by PDN mark, and the PCC rule of above-mentioned formulation is sent to PCEF by PCRF.
The gateway at step S616:PCEF place returns to the gateway at BBERF place and sets up IP-CAN session response message, and wherein, the information of carrying in this response message can include but not limited to: IP address information, now, default bearing does not exist relevant TFT.
The gateway at step S618:BBERF place returns sets up IP-CAN session response message, and wherein, the information of carrying in this response message can include but not limited to: IP address information, now, default bearing does not exist relevant TFT.
Step S620:BBERF may initiate to carry associative operation, wherein, can include but not limited to: the amendment of default bearing, the establishment of dedicated bearing; And for the amendment of default bearing, BBERF may send to TFT further according to the business data flow structure of transvers plate TFT be tied in the BBERF rule of default bearing.
So far, IP-CAN session establishment completes, and there is at least one QoS rule and is tied to default bearing, but default bearing can have TFT, also can not have TFT, it depends on the decision-making of PCRF and PCEF.For example: in the QoS rule being tied to default bearing by PCEF, do not carry filter send instruction.
Step S622: in the lifetime process of IP-CAN session, BBERF gets IP-CAN carrier signaling, the i.e. bearing resource modify request messages of UE initiation, wherein, the information of carrying in this request message comprises: the filter that UE request increases newly or revises and possible QoS information.
Step S624:BBERF sends credit control request (CCR) message based on Diameter to PCRF, and wherein, the information of carrying in this CCR message can include but not limited to: the filter that UE request increases newly or revises and possible QoS information.
Step S626:PCRF carries out decision-making renewal according to the request of UE.PCRF formulates PCC rule and corresponding QoS rule, and the QCI/ARP of this PCC/QoS rule is identical with the QCI/ARP of default bearing.
If the business datum flow filter that comprises of PCRF decision-making QoS rule needs to send to UE, so PCRF comprises and unconditionally sends instruction in QoS rule;
If PCRF decision-making is when QoS rule is bound to default bearing and default bearing does not have a TFT, then the filter that QoS rule comprises does not send to UE; And when QoS rule be bound to dedicated bearing or QoS rule be bound to default bearing and default bearing has TFT time, and when needing the filter that QoS rule comprises to be sent to UE, so PCRF can comprise condition transmission instruction in QoS rule, with instruction when QoS rule is bound to default bearing and default bearing does not have a TFT, the filter that QoS rule comprises does not send to UE, and when QoS rule be tied to dedicated bearing or QoS rule be tied to default bearing and default bearing has a TFT time, the filter that QoS rule comprises can send to UE.
It should be noted that, if PCRF finds when the rule of authorizing only has descending one way traffic data stream filters, PCRF can add the filter of any uplink business data stream of refusal.Now, this filter refusing any uplink business data stream can think that a condition sends instruction.Certain operator also can in some filter values of PCRF, BBERF predefine, and when BBERF receives the filter of this value, it is that a kind of condition sends instruction that BBERF can be understood as.(filter refusing any uplink business data stream can think a kind of predefine filter value.）
The diameter credit control that step S628:PCRF sends based on Diameter to BBERF responds (CCA) message, and wherein, the information of carrying in this CCA message can include but not limited to: QoS rule, comprises filter and send instruction in this QoS rule.
Step S630:BBERF installs QoS rule and performs.
If carry in QoS rule and unconditionally send instruction, so no matter whether BBERF is tied to dedicated bearing or default bearing by QoS rule, PCEF by according to the business data flow filter structure TFT in QoS rule, and sends to UE by IP-CAN carrier signaling.
If the condition that carries in QoS rule sends instruction, if then BBERF QoS rule is tied to dedicated bearing or QoS rule is tied to default bearing and default bearing TFT time, then BBERF can be sent to UE by IP-CAN carrier signaling according to the QoS rule filter structure TFT that comprise; And if QoS rule is tied to default bearing by BBERF and default bearing does not have a TFT time, then the filter that QoS rule comprises can not be sent to UE by BBERF.
It should be noted that, when BBERF detects that the QoS rule that PCRF issues comprises the filter that is refused any uplink business data stream, so BBERF will be interpreted as that a condition sends instruction, and perform corresponding operation, even BBERF QoS rule is tied to dedicated bearing or QoS rule is tied to default bearing and default bearing TFT time, then BBERF can be sent to UE by IP-CAN carrier signaling according to the QoS rule filter structure TFT that comprise; And if QoS rule is tied to default bearing by BBERF and default bearing does not have a TFT time, then the filter that QoS rule comprises can not be sent to UE by BBERF.
Step S632:PCRF sends authentication request again (RAR) message based on Diameter to PCEF, and wherein, the information of carrying in this RAR message can include but not limited to: PCC rule.
Step S634:PCEF installs PCC rule, and returns authentication response again (RAA) message based on Diameter.
Fig. 7 is the structured flowchart of the policy enforcement means according to the embodiment of the present invention.As shown in Figure 7, this policy enforcement means can be arranged in policy execution entity, this policy enforcement means can comprise: acquisition module 10, for obtaining the policing rule that PCRF issues, wherein, carry filter and indication information in policing rule, this indication information is used to indicate the type of the carrying that policy execution entity is bound to according to policing rule, or, according to whether the type carried and carrying existing TFT determine whether to send filter to UE; Determination module 20, sends filter for determining whether according to indication information to UE.
Adopt device as shown in Figure 7, the PCRF solved in correlation technique cannot correctly indicate PCEF or BBERF to send the problem of filter to UE, and then achieve indication information accurate assurance that policy execution entity can issue according to PCRF sends opportunity from filter to UE, thus PCRF is made correctly to indicate PCEF or BBERF to send filter to UE.
Preferably, determination module 20, for when the type determining according to indication information to carry is dedicated bearing, for sending filter to UE.
Preferably, determination module 20, for when determining that according to indication information the type carried is default bearing and there is TFT on default bearing, sends filter to UE; Or determination module 20, for when determining that according to indication information the type carried is default bearing and default bearing does not exist TFT, does not send filter to UE.
Fig. 8 is the structured flowchart of the policy distribution device according to the embodiment of the present invention.As shown in Figure 8, this policy distribution device can be arranged in PCRF, this policy distribution device can comprise: issue module 30, for regular to policy execution entity distributing policy, wherein, carry filter and indication information in policing rule, indication information is used to indicate the type of the carrying that policy execution entity is bound to according to policing rule, or, according to whether the type carried and carrying existing filter template TFT determine whether to send filter to user equipment (UE).
From above description, can find out, above embodiments enable following technique effect (it should be noted that these effects are effects that some preferred embodiment can reach): adopt the technical scheme that the embodiment of the present invention provides, PCRF by adding indication information in the control strategy rule issued to policy execution entity, determine whether to send filter to UE according to indication information to make policy execution entity, and this indication information is according to the type with the regular carrying of binding of control strategy, or, according to whether the type of carrying and the carrying of the type exist, TFT determines, and then achieve indication information accurate assurance that policy execution entity can issue according to PCRF sends opportunity from filter to UE, thus make PCRF accurately add TFT on default bearing.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (12)

1. a policy control method, is characterized in that, comprising:
The policing rule that policy execution entity acquisition strategy and charging rule functions PCRF issue, wherein, filter and indication information is carried in described policing rule, described indication information is used to indicate the type of the carrying that described policy execution entity is bound to according to described policing rule, or, according to whether the type of described carrying and described carrying exist filter template TFT determine whether to send described filter to user equipment (UE);
Described policy execution entity determines whether to send described filter to described UE according to described indication information.
2. method according to claim 1, is characterized in that,
If according to described indication information, described policy execution entity determines that the type of described carrying is dedicated bearing, then described policy execution entity sends described filter to described UE.
3. method according to claim 1, is characterized in that,
If according to described indication information, described policy execution entity determines that the type of described carrying is default bearing and described default bearing exists described TFT, then described policy execution entity sends described filter to described UE; Or,
If according to described indication information, described policy execution entity determines that the type of described carrying is default bearing and described default bearing does not exist described TFT, then described policy execution entity does not send described filter to described UE.
4. according to the method in claim 2 or 3, it is characterized in that, described policy execution entity after according to described filter structure TFT, connects Access Network IP-CAN carrier signaling by Internet protocol and the TFT of described structure is sent to described UE.
5. method according to claim 1, is characterized in that: described indication information is one of following:
Explicit indication parameter, predefined filter value.
6. method according to claim 5, is characterized in that, described predefine filter value is refuse the filter of any uplink business data stream.
7. according to the method in any one of claims 1 to 3, it is characterized in that, described policy execution entity is one of following:
Strategy and charge execution function PCEF, bearing binding and reporting events function BBERF.
8. according to the method in any one of claims 1 to 3, it is characterized in that, described policing rule is one of following:
Strategy and charging control PCC rule, service quality QoS rule.
9. a policy enforcement means, is characterized in that, comprising:
Acquisition module, for the policing rule that acquisition strategy and charging rule functions PCRF issue, wherein, filter and indication information is carried in described policing rule, described indication information is used to indicate the type of the carrying that described policy execution entity is bound to according to described policing rule, or, according to whether the type of described carrying and described carrying exist filter template TFT determine whether to send described filter to user equipment (UE);
Determination module, sends described filter for determining whether according to described indication information to described UE.
10. device according to claim 9, is characterized in that, described determination module, for when the type determining described carrying according to described indication information is dedicated bearing, sends described filter to described UE.
11. devices according to claim 9, is characterized in that, described determination module, for when determining that the type of described carrying is default bearing and described default bearing exists described TFT according to described indication information, send described filter to described UE; Or described determination module, for when determining that according to described indication information the type of described carrying is default bearing and described default bearing does not exist described TFT, does not send described filter to described UE.
12. 1 kinds of policy distribution devices, is characterized in that, comprising:
Issue module, for regular to policy execution entity distributing policy, wherein, filter and indication information is carried in described policing rule, described indication information is used to indicate the type of the carrying that described policy execution entity is bound to according to described policing rule, or, according to whether the type of described carrying and described carrying exist filter template TFT determine whether to send described filter to user equipment (UE).
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