CN102215469B

CN102215469B - Policy and charging control (PCC) method and system based on network load

Info

Publication number: CN102215469B
Application number: CN201010518622.5A
Authority: CN
Inventors: 周晓云; 宗在峰; 刘霖
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2010-04-09
Filing date: 2010-10-12
Publication date: 2015-01-28
Anticipated expiration: 2030-10-12
Also published as: CN102215469A; WO2011124106A1

Abstract

The invention provides a policy and charging control (PCC) method and a system based on the network load. The method comprises the following steps: when a policy and charging rule function (PCRF) makes a policy decision, according to whether a wireless base station accessed currently to a user equipment (UE) supports an explicit congestion notification (ECN) and the UE and the correspondent node of the UE support the ECN, the Maximum BitRate (MBR) in the Quality of Service (QoS) information of the policy is set to be greater than a Guarantee BitRate (GBR), or the MBR in the QoS information of the policy is set to be equal to the GBR; the PCRF sends the policy to a policy implementation function, and the policy implementation function implements the policy. The invention also provides a PCC system based on the network load.

Description

A kind of strategic charging control method of load Network Based and system

Technical field

The present invention relates to the communications field, particularly relate to a kind of strategic charging control method and system of load Network Based.

Background technology

Since third generation partner program stage 7 (3GPP Release7) standards system, strategy and billing function control (PCC, Policy and Charging Control) framework by strategy and charging and realize.PCC framework is a functional framework that can be applied to multiple access technology, such as, PCC framework can be applied to universal mobile telecommunications system (UMTS, Universal Mobile Telecommunications System) terrestrial radio access network (UTRAN, UMTS Terrestrial Radio Access Network), global system for mobile communications (GSM, Global system for Mobile Communication)/GSM data enhancing evolution (EDGE) wireless access network, grouping system (the EPS of intercommunicated wireless local area network (I-WLAN) and evolution, Evolved Packet System) etc.

PCC mainly achieves policy control and the large function of charging two.Fig. 1 is existing PCC structure composed schematic diagram, is described below to each logical functional entity in the PCC framework shown in Fig. 1 and interface function thereof.As shown in Figure 1:

AF (Application Function, Application Function), for providing the access point of service application, the Internet resources that these service application use need to carry out dynamic policy control.When service surface carries out parameter negotiation, related service information is passed to strategy and charging regulation function entity (PCRF, Policy and Charging Rules Function) by AF.If these business information are consistent with the strategy of PCRF, then PCRF accepts this negotiation; Otherwise PCRF refuses this negotiation, and provide the acceptable service parameter of PCRF when feeding back.Subsequently, these parameters can be returned to subscriber equipment (UE, User Equipment) by AF.Wherein, the interface between AF and PCRF is Rx interface.Proxy-Call Session Control Function (P-CSCF, Proxy Call Session Control Function) in IP Multimedia System (IMS, IP Multimedia Subsystem) can think a kind of AF.

PCRF is the core of PCC, for the formulation of responsible strategic decision-making and charging regulation.PCRF provides the network control rule based on business data flow, these network controls comprise the detection of business data flow, gate (Gating Control), service quality (QoS, Quality of Service) control and based on the charging regulation etc. of data flow.The strategy that PCRF is formulated and charging regulation send to strategy and charging execution function entity (PCEF, Policy and Control Enforcement Function) to perform; Meanwhile, PCRF also needs to ensure that these rules are consistent with the CAMEL-Subscription-Information of user.Wherein, PCRF generate strategy with charging regulation according to comprising: the information relevant to business obtained from AF, the user policy, billing control and subscription information relevant to policy control and charging obtained from user-subscribed database (SPR, Subscription Profile Repository) and obtained from PCEF by Gx interface with the information carrying network of relation.

PCEF is usually located in gateway (GW, Gate-Way), performs the strategy formulated of PCRF and charging regulation at loading end.Business datum flow filter in the rule that PCEF sends according to PCRF detects business data flow, and then performs to these business data flows the strategy and charging regulation that PCRF formulates; When carrying is set up, the rule that PCEF sends according to PCRF carries out QoS mandate, and carries out gate control according to the execution of AF; Meanwhile, PCEF triggers according to the event that PCRF subscribes to and reports event on bearer network; According to the charging regulation that PCRF sends, PCEF performs the operation of corresponding service data flow charge, and charging both can be online charging, also can be offline charging.If online charging, then PCEF needs and Online Charging System (OCS, Online Charging System) carry out credit management together; During offline charging, the charge information of exchange correlation between PCEF and off-line accounting system (OFCS, Offline Charging System).Wherein, the interface between PCEF and PCRF is Gx interface, and the interface between PCEF and OCS is Gy interface, and the interface between PCEF and OFCS is Gz interface.PCEF is generally positioned on the gateway of network, as grouped data network gateway (PDN-GW), the GPRS (GPRS of EPS, General Packet Radio Service) in GGSN (GGSN) and interconnected wireless network local area network (LAN) (I-WLAN, Interworking WLAN) in packet data gateway (PDG, Packet Data Gateway) etc.

Bearing binding and event reporting function entity (BBERF, Bearer Binding and Event Reporting Function) are usually located in Access Network gateway (Access Network Gateway).As adopted proxy mobile internet protocol version 6 (PMIPv6 when subscriber equipment is accessed between EPS, gateway S-GW and P-GW by E-UTRAN, Proxy Mobile Internet Protocol version 6) agreement time, just there is BBERF in S-GW.When subscriber equipment is by the access of trusted non-3 GPP access network, also there is BBERF in the trusted non-3 GPP access network Central Shanxi Plain.

User-subscribed database (SPR), stores the user policy, billing control and subscription information relevant to policy control and charging.Interface between SPR and PCRF is Sp interface.

OCS and PCEF completes the control and management of user credit under online charging mode jointly.

OFCS and PCEF completes the billing operation under offline charging mode jointly.

UE (User Equipment, subscriber equipment) set up PDN connection by wireless telecommunication system (as GRPS, UMTS, EPS), also the access of IP-CAN (IP-Connectivity Access Network, IP connect Access Network) session realization to the IP operation that operator or third party provide is claimed.The QoS demand of the business that PCRF accesses according to user carries out strategic decision-making, and in wireless telecommunication system, initiates resource reservation process ensure to provide the QoS of Operational Visit.

For some business, wireless telecommunication system can to provide safeguard speed (Guarantee BitRate is called for short GBR) for the transmission of this business, with the lowest-bandwidth required for this business data flow of satisfied transmission.Maximum rate (Maximum BitRate is called for short MBR) also can be set simultaneously, to limit the maximum rate of this business datum flow transmission.In order to QoS security mechanism realizes simple, usually the value of GBR is arranged to identical with the value of MBR.The shortcoming of this scheme is, when the speed of business actual transmissions is less than MBR, network remains MBR to the resource of this traffic assignments, and for saving Internet resources, the operation cost reducing operator is unfavorable.

At present, industry is studying the QoS security mechanism how realizing MBR > GBR.Network transmits the guarantee bandwidth provided to business and is less than this business peak transfer rate.When network load is lighter, network can provide the speed rates of MBR to provide good Consumer's Experience for this business, and when network load is heavier, (mainly refers to the congested of wireless side) when particularly occurring congested, the speed of reduction business transmission, only provides GBR bandwidth safeguard.By reducing carrying out smoothly of bandwidth assurance service access.By the dynamic conditioning of transmission rate, can Internet resources be saved, reduce the operation cost of operator.

In order to realize above-mentioned mechanism, first ECN (Explicit Congestion Notification, ecn (explicit congestion notification)) mechanism must be supported in UE and wireless base station.Fig. 2 is that the ECN of downlink data detects schematic diagram.UE B to UE A with the rate sending data of MBR, the IP packet header ECN of these data is labeled as and is set to ECT (0) (namely not congested), when this packet is through wireless base station A, the ECN position of packet is set to ECN-CE (indicating congested) by wireless base station A.After UE A detects ECN-CE value, judge its downlink path has occurred congested, UE A sends the request message of changing down to UE B.After UE B receives this request message, with the rate sending data of GBR.Like this, would not there is packet loss phenomenon in packet, guarantee business can normally be accessed because wireless base station is congested.Fig. 3 is that the ECN of upstream data detects schematic diagram.UE A is to UE B with the rate sending data of MBR, and the IP packet header ECN of these data is labeled as and is set to ECT (0) (namely not congested), and when this packet is through wireless base station A, the ECN position of packet is set to ECN-CE by wireless base station A.After UE B detects ECN-CE value, judge its up path has occurred congested, UE B sends the request message of changing down to UE A.After UE A receives this request message, with the rate sending data of GBR.That carries out speed adjustment due to communicating pair (i.e. UE A and UE B) needs the regular hour alternately, therefore time in order to ensure to occur congested, communicating pair can have time enough to carry out speed adjustment, and wireless base station needs to ensure (such as at least 300 milliseconds or at least 500 milliseconds) not packet loss in one after it arranges congested indicating bit (i.e. ECN-CE) graceful period (grace period) of giving tacit consent to.Within this graceful period, other QoS demand (as QoS classification logotype (QoS Class Identifier, QCI) characteristic) of wireless base station also demand fulfillment current data packet.At present, how to use PCC to realize carrying out policy control to the scene of MBR > GBR during this service data transmission stream, finally realize the policy and charging control of load Network Based, also there is no total solution.

Summary of the invention

Technical problem to be solved by this invention overcomes the deficiencies in the prior art, provides a kind of policy control method and system of load Network Based.

In order to solve the problem, the invention provides a kind of strategic charging control method of load Network Based, comprising:

When strategy and charging regulation function entity (PCRF) carry out strategic decision-making, whether support whether ecn (explicit congestion notification) (ECN) and described subscriber equipment and Correspondent Node thereof support ECN according to the wireless base station of the current access of subscriber equipment, maximum rate in the quality of service information of Provisioning Policy is greater than guarantee speed, or the maximum rate in the quality of service information of Provisioning Policy equals to ensure speed;

Described PCRF sends described strategy to policy execution entity, and described policy execution entity performs described strategy.

Further, said method also can have following characteristics, if ECN is supported in the wireless base station of the current access of described subscriber equipment, and described subscriber equipment and Correspondent Node thereof support that ECN, the described PCRF maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed.

Further, said method also can have following characteristics, if ECN is not supported in the wireless base station of the current access of described subscriber equipment, or, described subscriber equipment or its Correspondent Node do not support ECN, and the described PCRF maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

Further, said method also can have following characteristics, and described PCRF obtains described subscriber equipment from Application Function (AF) and whether Correspondent Node supports ECN; When described PCRF receives the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof support ECN; When described PCRF does not receive the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof do not support ECN.

Further, said method also can have following characteristics, and whether the wireless base station that described PCRF obtains the current access of described subscriber equipment from strategy and charging execution function entity (PCEF) or bearing binding and event reporting function entity (BBERF) supports ECN; When described PCRF receives the instruction of wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, described PCEF judges that ECN is supported in the wireless base station of the current access of described subscriber equipment; When described PCRF does not receive the instruction of the wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, or, described PCRF does not support the instruction of ECN during from the wireless base station that described PECF or described BBERF receives the current access of subscriber equipment, described PCRF judges that ECN is not supported in the wireless base station of the current access of described subscriber equipment; Or according to configuration information, described PCRF judges whether the wireless base station of the current access of described subscriber equipment supports ECN.

Further, said method also can have following characteristics, and whether described PCEF supports the instruction of ECN according to the wireless base station of subscriber equipment access as described under type acquisition:

Mobile management entity (MME) or service GPRS gateway support (SGSN) receive from the wireless base station of the current access of described subscriber equipment the instruction whether described wireless base station supports ECN, or, according to configuration information, described MME or described SGSN judges whether the wireless base station of the current access of described subscriber equipment supports ECN ability after, whether the wireless base station that described MME or SGSN sends the current access of subscriber equipment supports the gateway that the instruction of ECN is positioned to described PCEF.

Further, said method also can have following characteristics, and whether the wireless base station that described BBERF obtains subscriber equipment access in the following way supports the instruction of ECN:

MME receives from the wireless base station of the current access of described subscriber equipment the instruction whether this wireless base station supports ECN, or, according to configuration information, described MME judges whether the wireless base station of the current access of described subscriber equipment supports ECN ability after, whether the wireless base station that described MME sends the current access of described subscriber equipment supports the gateway that the instruction of ECN is positioned to described BBERF.

The invention provides a kind of strategic charging control method of load Network Based, comprising:

When strategy and charging regulation function entity (PCRF) carry out strategic decision-making, whether support whether support ECN based on the congestion control of ecn (explicit congestion notification) (ECN) and described subscriber equipment and Correspondent Node thereof according to the wireless base station of the current access of subscriber equipment, maximum rate in the quality of service information of Provisioning Policy is greater than guarantee speed, or the maximum rate in the quality of service information of Provisioning Policy equals to ensure speed;

Further, said method also can have following characteristics, if the wireless base station support of the current access of described subscriber equipment is based on the congestion control of ECN, and described subscriber equipment and Correspondent Node thereof support that ECN, the described PCRF maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed.

Further, said method also can have following characteristics, if the congestion control based on ECN is not supported in the wireless base station of the current access of described subscriber equipment, or, described subscriber equipment or its Correspondent Node do not support ECN, and the described PCRF maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

Further, said method also can have following characteristics, and whether described PCRF supports the congestion control based on ECN from the wireless base station that strategy and charging execution function entity (PCEF) or bearing binding and event reporting function entity (BBERF) obtain the current access of described subscriber equipment; When the instruction of described PCRF to receive the current access of subscriber equipment wireless base station support from described PCEF or described BBERF based on the congestion control of ECN, described PCRF judges the congestion control of wireless base station support based on ECN of the current access of described subscriber equipment; The wireless base station support not receiving the current access of subscriber equipment from described PCEF or described BBERF as described PCRF indicates based on the congestion control of ECN, or, described PCRF does not support the congestion control instruction based on ECN during from the wireless base station that described PECF or described BBERF receives the current access of subscriber equipment, described PCRF judges that the congestion control based on ECN is not supported in the wireless base station of the current access of described subscriber equipment; Or whether described PCRF supports the congestion control based on ECN according to the wireless base station that configuration information obtains the current access of described subscriber equipment.

Further, said method also can have following characteristics, based on the congestion control of ECN, the wireless base station support of the current access of described subscriber equipment refers to that ECN is supported and after the described ECN of use indicates congested generation in described wireless base station, guarantee not packet loss and/or meet quality of service class mark QCI characteristic within the graceful time period.

Further, said method also can have following characteristics, and whether described PCEF supports the instruction of the congestion control based on ECN according to the wireless base station of subscriber equipment access as described under type acquisition:

Mobile management entity (MME) or service GPRS gateway support (SGSN) receive from the wireless base station of the current access of described subscriber equipment the instruction whether described wireless base station supports the congestion control based on ECN, or, after described MME or described SGSN judges according to configuration information the congestion control the ability whether wireless base station of the current access of described subscriber equipment is supported based on ECN, whether the wireless base station that described MME or SGSN sends the current access of subscriber equipment supports the gateway that the instruction based on the congestion control of ECN is positioned to described PCEF.

Further, said method also can have following characteristics, and whether the wireless base station that described BBERF obtains subscriber equipment access in the following way supports the instruction of the congestion control based on ECN:

MME receives from the wireless base station of the current access of described subscriber equipment the instruction whether this wireless base station supports the congestion control based on ECN, or, according to configuration information, described MME judges whether the wireless base station of the current access of described subscriber equipment supports the ability based on the congestion control of ECN after, whether the wireless base station that described MME sends the current access of described subscriber equipment supports the gateway that the instruction based on the congestion control of ECN is positioned to described BBERF.

The present invention also provides a kind of policy charging control system of load Network Based, comprises PCRF and policy execution entity:

Described PCRF, during for carrying out strategic decision-making, whether support whether ECN and described subscriber equipment and Correspondent Node thereof support ECN according to the wireless base station of the current access of subscriber equipment, maximum rate in the quality of service information of Provisioning Policy is greater than guarantee speed, or the maximum rate in the quality of service information of Provisioning Policy equals guaranteed rate, issue described strategy to policy execution entity;

Described policy execution entity, for receiving described strategy from described PCRF, performs described strategy.

Further, said system also can have following characteristics, described PCRF, supports ECN for the wireless base station when the current access of described subscriber equipment, and described subscriber equipment and Correspondent Node thereof support ECN, the maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed.

Further, said system also can have following characteristics, described PCRF, ECN is not supported for the wireless base station when the current access of described subscriber equipment, or, when described subscriber equipment or its Correspondent Node do not support ECN, the maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

Further, said system also can have following characteristics, described PCRF, for obtaining described subscriber equipment from AF and whether Correspondent Node supports ECN; When described PCRF receives the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof support ECN; When described PCRF does not receive the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof do not support ECN.

Further, said system also can have following characteristics, and described system also comprises PCEF or BBERF, wherein:

Whether described PCRF, support ECN for the wireless base station obtaining the current access of described subscriber equipment from PCEF or BBERF; When described PCRF receives the instruction of wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, described PCEF judges that ECN is supported in the wireless base station of the current access of described subscriber equipment; When described PCRF does not receive the instruction of the wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, or, described PCRF does not support the instruction of ECN during from the wireless base station that described PECF or described BBERF receives the current access of subscriber equipment, described PCRF judges that ECN is not supported in the wireless base station of the current access of described subscriber equipment; Or,

Described PCRF, for judging according to configuration information whether the wireless base station of the current access of described subscriber equipment supports ECN.。

Further, said system also can have following characteristics, and described system also comprises MME or SGSN, wherein:

Described MME or SGSN, for receiving from the wireless base station of the current access of described subscriber equipment the instruction whether described wireless base station supports ECN, or, after judging whether the wireless base station of the current access of described subscriber equipment supports ECN ability according to configuration information, whether the wireless base station sending the current access of subscriber equipment supports the gateway that the instruction of ECN is positioned to described PCEF.

Further, said system also can have following characteristics, and described system also comprises MME, wherein:

Described MME, for receiving from the wireless base station of the current access of described subscriber equipment the instruction whether this wireless base station supports ECN, or, after judging whether the wireless base station of the current access of described subscriber equipment supports ECN ability according to configuration information, whether the wireless base station sending the current access of described subscriber equipment supports the gateway that the instruction of ECN is positioned to described BBERF.

Described PCRF, during for carrying out strategic decision-making, whether support whether support ECN based on the congestion control of ECN and described subscriber equipment and Correspondent Node thereof according to the wireless base station of the current access of subscriber equipment, maximum rate in the quality of service information of Provisioning Policy is greater than guarantee speed, or the maximum rate in the quality of service information of Provisioning Policy equals to ensure speed, issues described strategy to policy execution entity;

Further, said system also can have following characteristics, described PCRF, for working as the congestion control of wireless base station support based on ECN of the current access of described subscriber equipment, and described subscriber equipment and Correspondent Node thereof support ECN, the maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed.

Further, said system also can have following characteristics, described PCRF, for not supporting the congestion control based on ECN when the wireless base station of the current access of described subscriber equipment, or, when described subscriber equipment or its Correspondent Node do not support the congestion control based on ECN, the maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

Described PCRF, whether the wireless base station for obtaining the current access of described subscriber equipment from PCEF or BBERF supports the congestion control based on ECN; When the instruction of described PCRF to receive the current access of subscriber equipment wireless base station support from described PCEF or described BBERF based on the congestion control of ECN, described PCRF judges the congestion control of wireless base station support based on ECN of the current access of described subscriber equipment; When described PCRF does not receive the instruction of wireless base station support based on the congestion control of ECN of the current access of subscriber equipment from described PCEF or described BBERF, or, described PCRF does not support the instruction based on the congestion control of ECN during from the wireless base station that described PECF or described BBERF receives the current access of subscriber equipment, described PCRF judges that the congestion control based on ECN is not supported in the wireless base station of the current access of described subscriber equipment; Or

Described PCRF, for judging according to configuration information whether the wireless base station of the current access of described subscriber equipment supports the congestion control based on ECN.

Further, said system also can have following characteristics, based on the congestion control of ECN, the wireless base station support of the current access of described subscriber equipment refers to that ECN is supported and after the described ECN of use indicates congested generation in described wireless base station, guarantee not packet loss and/or meet quality of service class mark QCI characteristic within the graceful time period.

Described MME or SGSN, for receiving from the wireless base station of the current access of described subscriber equipment the instruction whether described wireless base station supports the congestion control based on ECN, or, after judging whether the wireless base station of the current access of described subscriber equipment supports the ability based on the congestion control of ECN according to configuration information, whether the wireless base station sending the current access of subscriber equipment supports the gateway that the instruction based on the congestion control of ECN is positioned to described PCEF.

Further, said system also can have following characteristics, described MME, for receiving from the wireless base station of the current access of described subscriber equipment the instruction whether this wireless base station supports the congestion control based on ECN, or, after judging whether the wireless base station of the current access of described subscriber equipment supports the ability based on the congestion control of ECN according to configuration information, whether the wireless base station sending the current access of described subscriber equipment supports the gateway that the instruction based on the congestion control of ECN is positioned to described BBERF.

The present invention can realize the policy and charging control of load Network Based, and when load is lighter, allow the transmission rate of business to reach MBR, when load is heavier, service transmission rate is GBR.

Accompanying drawing explanation

Fig. 1 is PCC Organization Chart;

Fig. 2 is the schematic flow sheet utilizing ECN base station to carry out upstream data rate adjustment in prior art;

Fig. 3 is the schematic flow sheet utilizing ECN base station to carry out downstream data rate adjustment in prior art;

Fig. 4 is the embodiment of the present invention one flow chart;

Fig. 5 is the embodiment of the present invention two flow chart;

Fig. 6 is the embodiment of the present invention three flow chart;

Fig. 7 is the embodiment of the present invention four flow chart.

Embodiment

When PCRF carries out strategic decision-making, whether support whether ECN and described subscriber equipment and Correspondent Node thereof support ECN according to the wireless base station of the current access of subscriber equipment, maximum rate in the quality of service information of Provisioning Policy is greater than guarantee speed, or the maximum rate in the quality of service information of Provisioning Policy equals to ensure speed;

Wherein, if ECN is supported in the wireless base station of the current access of described subscriber equipment, and described subscriber equipment and Correspondent Node thereof support that ECN, the described PCRF maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed; If ECN is not supported in the wireless base station of the current access of described subscriber equipment, or described subscriber equipment or its Correspondent Node do not support ECN, and the described PCRF maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

Wherein, described PCRF obtains described subscriber equipment from AF and whether Correspondent Node supports ECN; When described PCRF receives the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof support ECN; When described PCRF does not receive the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof do not support ECN.(note: whether support ECN from AF obtaining communication both sides)

Wherein, whether the wireless base station that described PCRF obtains the current access of described subscriber equipment from PCEF or BBERF supports ECN; When described PCRF receives the instruction of wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, described PCRF judges that ECN is supported in the wireless base station of the current access of described subscriber equipment; When described PCRF does not receive the instruction of the wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, or, described PCRF does not support the instruction of ECN during from the wireless base station that described PECF or described BBERF receives the current access of subscriber equipment, described PCRF judges that ECN is not supported in the wireless base station of the current access of described subscriber equipment; Or,

According to configuration information, described PCRF judges whether the wireless base station of the current access of described subscriber equipment supports ECN.

Wherein, whether described PCEF supports the instruction of ECN according to the wireless base station of subscriber equipment access as described under type acquisition:

MME or SGSN receives from the wireless base station of the current access of described subscriber equipment the instruction whether described wireless base station supports ECN, or, according to configuration information, described MME or described SGSN judges whether the wireless base station of the current access of described subscriber equipment supports ECN ability after, whether the wireless base station that described MME or SGSN sends the current access of subscriber equipment supports the gateway that the instruction of ECN is positioned to described PCEF.

Wherein, whether the wireless base station that described BBERF obtains subscriber equipment access in the following way supports the instruction of ECN:

Wherein, described policy execution entity is PCEF, or PCEF and BBERF, and described PCRF sends out strategy described to described PCEF, or, issue described strategy to described PCEF and described BBERF; Described PCEF or described BBERF performs described strategy.

When PCRF carries out strategic decision-making, whether support whether support ECN based on the congestion control of ECN and described subscriber equipment and Correspondent Node thereof according to the wireless base station of the current access of subscriber equipment, maximum rate in the quality of service information of Provisioning Policy is greater than guarantee speed, or the maximum rate in the quality of service information of Provisioning Policy equals to ensure speed;

Wherein, if the wireless base station support of the current access of described subscriber equipment is based on the congestion control of ECN, and described subscriber equipment and Correspondent Node thereof support that ECN, the described PCRF maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed.

Wherein, if the congestion control based on ECN is not supported in the wireless base station of the current access of described subscriber equipment, or described subscriber equipment or its Correspondent Node do not support ECN, the described PCRF maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

Wherein, described PCRF obtains described subscriber equipment from AF and whether Correspondent Node supports ECN; When described PCRF receives the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof support ECN; When described PCRF does not receive the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof do not support ECN.

Wherein, whether described PCRF supports the congestion control based on ECN from the wireless base station that PCEF or BBERF obtains the current access of described subscriber equipment; When the instruction of described PCRF to receive the current access of subscriber equipment wireless base station support from described PCEF or described BBERF based on the congestion control of ECN, described PCRF judges the congestion control of wireless base station support based on ECN of the current access of described subscriber equipment; The wireless base station support not receiving the current access of subscriber equipment from described PCEF or described BBERF as described PCRF indicates based on the congestion control of ECN, or, described PCRF does not support the congestion control instruction based on ECN during from the wireless base station that described PECF or described BBERF receives the current access of subscriber equipment, described PCRF judges that the congestion control based on ECN is not supported in the wireless base station of the current access of described subscriber equipment; Or

Whether described PCRF supports the congestion control based on ECN according to the wireless base station that configuration information obtains the current access of described subscriber equipment.

Wherein, based on the congestion control of ECN, the wireless base station support of the current access of described subscriber equipment refers to that ECN is supported and after the described ECN of use indicates congested generation in described wireless base station, guarantee not packet loss and/or meet quality of service class mark QCI characteristic within the graceful time period.

Wherein, whether described PCEF supports the instruction of the congestion control based on ECN according to the wireless base station of subscriber equipment access as described under type acquisition:

MME or SGSN receives from the wireless base station of the current access of described subscriber equipment the instruction whether described wireless base station supports the congestion control based on ECN, or, after described MME or described SGSN judges according to configuration information the congestion control the ability whether wireless base station of the current access of described subscriber equipment is supported based on ECN, whether the wireless base station that described MME or SGSN sends the current access of subscriber equipment supports the gateway that the instruction based on the congestion control of ECN is positioned to described PCEF.

Wherein, whether the wireless base station that described BBERF obtains subscriber equipment access in the following way supports the instruction of the congestion control based on ECN:

Embodiment 1

What the present embodiment described is after user sets up IP-CAN (IP-Connectivity Access Network, IP connected reference network) session, and after UE initiates Operational Visit, PCRF carries out strategic decision-making.The IP-CAN session that wherein UE sets up does not have BBERF.Detailed process as shown in Figure 4, comprises the following steps:

Step 401: set up in the process of IP-CAN session in UE request, PCEF receives request and sets up IP-CAN conversation message, the PDN mark of the user ID of user and the PDN network of request access is carried in this message, in the present embodiment, now, the instruction of ECN is supported in the wireless base station receiving the current access of UE from lower network element (S-GW such as EPS or the SGSN etc. in UMTS system) by PCEF;

Wherein, in EPS, the wireless base station that PCEF receives UE access from lower network element supports that the detailed process of the instruction of ECN is as follows:

In the attachment flow of UE, UE is to eNodeB (Evolved Node B, the Node B of evolution) send Attach Request message, eNodeB is again to MME (Mobility Management Entity, mobile management entity) send Attach Request message, and in this Attach Request message, carry eNodeB support ECN instruction; MME is to S-GW (Serving Gateway subsequently, gateway) send establishment conversation request message, the instruction that eNodeB supports ECN is carried in this establishment conversation request message, S-GW is again to P-GW (PDN Gateway, grouped data network gateway) send establishment conversation request message, carry the instruction that eNodeB supports ECN in this establishment conversation request message, the PCEF being positioned at P-GW so just obtains the instruction of the eNodeB support ECN of the current access of UE;

Or, set up other PDN at UE and connect in flow process that (namely UE is after adhering to, also set up another one PDN to connect, the P-GW selected when the P-GW at this moment selected and attachment may be different), UE sends PDN connection request to MME, MME sends connection request message to S-GW afterwards, the eNodeB carrying the current access of UE in this connection request message supports the instruction of ECN, S-GW sends to P-GW and creates conversation request message, the eNodeB carrying UE access in this establishment conversation request message supports the instruction of ECN, like this, the PCEF being positioned at P-GW just obtains the instruction of the eNodeB support ECN of UE access.

In above-mentioned two processes, eNodeB also can not report it to support the instruction of ECN ability, but judges that this eNodeB supports ECN ability by MME according to configuration information, and reports eNodeB to support the instruction of ECN ability to S-GW.

In the umts system, the NodeB that PCEF receives the current access of UE from lower network element support the instruction process of ECN and EPS similar, the ECN ability instruction of the NodeB of the current access of UE sends to RNC by NodeB, send to SGSN by RNC again or judge that NodeB supports ECN by SGSN according to configuration information, GGSN is sent to again by SGSN, like this, the PCEF being positioned at GGSN just can obtain the instruction of the NodeB support ECN ability of the current access of UE.

Step 402:PCEF sends IP-CAN session establishment Indication message to PCRF, carry in this IP-CAN session establishment Indication message user ID, PDN mark, the IP address (IPAddress) distributed for UE and the current access of UE received by PCEF wireless base station support the instruction of ECN;

After step 403:PCRF receives above-mentioned IP-CAN session establishment Indication message, send signing document request message to SPR, in this signing document request message, carry user ID and PDN mark;

After step 404:SPR receives above-mentioned signing document request message, identify according to user ID wherein and PDN the CAMEL-Subscription-Information returning user to PCRF;

Step 405:PCRF receives above-mentioned CAMEL-Subscription-Information, generates strategy and be handed down to PCEF according to the subscription data returned, and the strategy formulated comprises PCC rule and event trigger.Optionally, ECN_CAPABILITY_CHANGE is comprised in event trigger value;

Step 406:PCEF returns response to UE and sets up IP-CAN conversation message, carries the IP Address of UE in this response message;

By above-mentioned steps, after UE sets up IP-CAN session, initiate Operational Visit.UE will carry out alternately (as interactive sessions initiation protocol (SIP) signaling), to consult the business information determining Operational Visit, as medium type, qos parameter, type of coding etc. with AF.In this process, UE can notify AF, and it supports ECN ability, and (as another UE or AS (Application Server, application server) also can notify AF, it supports ECN ability in the opposite end of UE communication.

Step 407: after having consulted, AF sends service/application informational message to PCRF, carries the IP Address of UE in this message, and the business information after consulting, as medium type, qos parameter, type of coding etc.AF also can carry the instruction that communicating pair supports ECN;

When communicating pair (i.e. subscriber equipment and Correspondent Node thereof), either party does not support ECN, AF does not send communicating pair and supports that ECN's is indicated to PCRF.

Step 408:PCRF returns acknowledge message to AF after preserving business information;

Step 409:PCRF carries out strategic decision-making, PCC rule is formulated according to business information, network strategy etc. that CAMEL-Subscription-Information, AF provide, and support ECN instruction according to the wireless base station that PCEF sends, the communicating pair that AF sends supports the instruction of ECN, arranges the MBR > GBR in the QoS of PCC rule;

Step 410:PCRF provides message to PCEF sending strategy and charging regulation, carries the PCC rule that step 409 is formulated;

Step 411:PCEF installation PCC rule, returns strategy and charging regulation provides acknowledge message to PCRF;

Step 412:PCEF implementation strategy, initiate resource reservation process, wherein carry out Resources allocation according to GBR, PCEF is that the business of MBR > GBR sets up separately a carrying to transmit this business.

Wherein, in EPS, PCEF initiates resource reservation process to lower network element and creates carrying request for: the P-GW that PCEF is positioned at sends to S-GW, carry the QoS information (comprising GBR, MBR) in PCC rule, S-GW sends to MME and creates carrying request, and MME sends carrying to eNodeB further and sets up request, carries QoS information, eNodeB is this carrying Resources allocation according to GBR, and provide safeguard bandwidth.Meanwhile, when load is lighter, eNodeB allows the transmission rate of business to reach MBR.

In the umts system, PCEF to lower network element initiate resource reservation process for: the GGSN that PCEF is positioned at sends primary PDP context activation request message to SGSN, carry the QoS information (comprising GBR, MBR) in PCC rule, SGSN sends request the second PDP context activation to UE further.Subsequently, UE is by initiation second pdp context activation, and NodeB, RNC, SGSN, GGSN are this carrying Resources allocation.NodeB GBR is this carrying Resources allocation, and provide safeguard bandwidth.Meanwhile, when load is lighter, NodeB allows the transmission rate of business to reach MBR.

Embodiment 2

What the present embodiment described is after user sets up IP-CAN session, and UE initiates Operational Visit, and PCRF carries out strategic decision-making.The IP-CAN session that wherein UE sets up has BBERF to exist.Detailed process as shown in Figure 5, comprises the following steps:

Step 501: set up in the process of IP-CAN session in UE request, the resident gateway of BBERF receives request and sets up IP-CAN conversation message, carry the PDN mark of the user ID of user and the PDN network of request access in message, now BBERF receives from lower network element (S-GW etc. such as EPS) instruction that ECN is supported in UE current wireless base station;

Wherein, in EPS, BBERF receives UE current wireless base station and supports that the detailed process of the instruction of ECN is as follows from lower network element:

In the attachment flow of UE, UE sends Attach Request message to eNodeB, and eNodeB sends Attach Request message to MME again, and in this Attach Request message, carry the instruction that ECN is supported in UE current wireless base station.MME sends to S-GW and creates conversation request message afterwards, carries the instruction that ECN is supported in UE current wireless base station in this establishment conversation request message, and like this, the BBERF being positioned at S-GW just obtains the instruction that ECN is supported in UE current wireless base station;

Or, set up other PDN at UE and connect in flow process that (namely UE is after adhering to, also set up another one PDN to connect, at this moment the P-GW selected may be different with the P-GW selected during attachment), UE sends PDN connection request to MME, then sends connection request message by MME to S-GW, carries the instruction that ECN is supported in UE current wireless base station in this connection request message, like this, the BBERF being positioned at S-GW just obtains the instruction of the wireless base station support ECN of the current access of UE.

Step 502:BBERF sends gateway control session to PCRF and sets up message, and this gateway control session is set up in message and carried the instruction that ECN is supported in user ID, PDN mark and the current access wireless base station of UE;

Step 503:PCRF receives above-mentioned gateway control session and sets up message, sends signing document request message to SPR, carries user ID and PDN mark in this signing document request message;

Step 504:SPR receives above-mentioned signing document request message, and identifies according to user ID wherein and PDN the CAMEL-Subscription-Information returning user to PCRF;

Step 505:PCRF generates strategy according to the subscription data returned, and wherein, the strategy that PCRF formulates comprises PCC rule, and corresponding QoS rule and event trigger, wherein, event trigger value comprises cell change.PCRF returns gateway session establishment acknowledge message to BBERF, and described gateway session establishment acknowledge message comprises formulated QoS rule and event trigger, and BBERF receives QoS rule and event trigger, and carries out installing and performing;

The resident gateway of step 506:BBERF sends request to the gateway that PCEF is resident sets up IP-CAN conversation message, and this request is set up in IP-CAN conversation message and carried user ID and PDN mark;

Step 507:PCEF receives after request sets up IP-CAN conversation message, and send IP-CAN session establishment Indication message to PCRF, carry user ID in this IP-CAN session establishment Indication message, PDN mark and gateway are the IP Address that UE distributes;

After step 508:PCRF receives IP-CAN session establishment Indication message, according to user ID, PDN identifies gateway control session step 502 set up and associates with the IP-CAN session that step 507 is set up, and return IP-CAN session establishment acknowledge message to PCEF, PCC rule and the event trigger of step 505 formulation is carried in this IP-CAN session establishment acknowledge message, PCEF carries out installing and performing after receiving PCC rule and event trigger;

Step 509:PCEF residential gateway returns response to BBERF residential gateway and sets up IP-CAN conversation message, and this response is set up in IP-CAN conversation message and carried IP Address;

Step 510:BBERF residential gateway receives above-mentioned response and sets up IP-CAN conversation message, and return response to UE and set up IP-CAN conversation message, this response is set up in IP-CAN conversation message and carried IPAddress;

By above-mentioned steps, after UE sets up IP-CAN session, initiate Operational Visit.UE will carry out (as SIP signaling) alternately, to determine the business information of Operational Visit, as medium type, qos parameter, type of coding etc. with AF.In this process, UE can notify AF, and it supports ECN ability, and the opposite end (as another UE or AS (Application Server, application server)) of UE communication also can notify its support of AF ECN ability.

Step 511: after having consulted, AF sends service/application informational message to PCRF, carries the IP Address of UE in this message, and the business information after consulting, as medium type, qos parameter, type of coding etc., AF also can carry the instruction that communicating pair supports ECN;

Step 512:PCRF returns acknowledge message to AF after preserving business information;

Step 513:PCRF carries out strategic decision-making, the formulation PCC such as business information, network strategy provided according to CAMEL-Subscription-Information, AF and the QoS rule of correspondence.And support ECN instruction according to the wireless base station that BBERF sends, the communicating pair that AF sends supports the instruction of ECN, the QoS MBR > GBR of PCC rule and QoS rule is set;

Step 514:PCRF provides message to PCEF sending strategy and charging regulation, carries the PCC rule that step 513 is formulated;

Step 515:PCEF installation PCC rule, returns strategy and charging regulation provides acknowledge message to PCRF;

Step 516:PCRF sends gateway control to BBERF and QoS rule provides message, carries the QoS rule that PCRF in step 513 formulates in message;

Step 517:BBERF returns gateway control and QoS rule provides acknowledge message to PCRF;

Step 518:BBERF implementation strategy, initiate resource reservation process, wherein carry out Resources allocation according to GBR, BBERF is that the business of MBR > GBR sets up separately a carrying to transmit this business.

Wherein, in EPS, BBERF initiates resource reservation process to lower network element and creates carrying request for: the S-GW that BBERF is positioned at sends to MME, carry the QoS information (comprising GBR, MBR) in PCC rule, MME sends carrying to eNodeB further and sets up request, carry QoS information, eNodeB is this carrying Resources allocation according to GBR, and provide safeguard bandwidth.Meanwhile, when load is lighter, eNodeB allows the transmission rate of business to reach MBR.

Embodiment 3

What the present embodiment described is that UE such as embodiment 1 or embodiment 2 set up IP-CAN session and access service, due to the movement of UE, is switched to the wireless base station that is not supported ECN, and the flow process of the PCRF update strategy caused.Wherein the IP-CAN session of UE does not have BBERF.Detailed process as shown in Figure 6, comprises the following steps:

Step 601: because UE there occurs movement, is linked into another one wireless base station.In this process, PCEF receives request amendment IP-CAN conversation message, carry wireless base station in this message and do not support that ECN indicates, in the present embodiment, now, the instruction of ECN is not supported in the wireless base station receiving the current access of UE from lower network element (S-GW such as EPS or the SGSN etc. in UMTS system) by PCEF;

In the handoff procedure of UE, do not carry in the request message that target eNode B sends to MME and support ECN instruction, therefore MME judges that this eNodeB does not support ECN, therefore carry wireless base station in the request message that sends to S-GW of MME and do not support that ECN indicates, S-GW carries wireless base station and does not support that ECN indicates in the request message sent to P-GW.The eNodeB that the PCEF being positioned at P-GW so just obtains the current access of UE does not support the instruction of ECN;

Wherein, in the umts system, PCEF receive from lower network element UE access wireless base station support that the detailed process of the instruction of ECN is as follows:

In the handoff procedure of UE, do not carry in the request message that target NodeB is sent to SGSN by RNC and support ECN instruction, therefore SGSN judges that NodeB does not support ECN, therefore SGSN carries wireless base station in the request message sent to GGSN does not support that ECN indicates.The eNodeB that the PCEF being positioned at GGSN so just obtains the current access of UE does not support the instruction of ECN;

In other embodiments, MME/SGSN also can not support ECN according to configuration determination target eNode B/NodeB, therefore, SGSN carries wireless base station and does not support that ECN indicates in the request message sent to GGSN, thus the eNodeB that the PCEF being positioned at GGSN just obtains the current access of UE does not support the instruction of ECN;

In other embodiments, MME/SGSN also can not carry the instruction that ECN is supported in any wireless base station, final like this, and according to not having wireless base station to support, ECN instruction judges that ECN is not supported in the base station of the current access of UE to PCEF.

Step 602:PCEF sends IP-CAN session modification Indication message to PCRF, and the instruction of ECN is supported in the wireless base station that the wireless base station carrying the current access of UE in this IP-CAN session modification Indication message is not supported the instruction of ECN or do not carried the current access of UE;

Step 603:PCRF receives above-mentioned IP-CAN session modification Indication message, does not support that ECN indicates, update strategy according to wireless base station.The wherein qos section of PCC rule, is set to MBR value by GBR value;

Step 604:PCRF sends the rule of the PCC after upgrading to PCEF;

Step 605:PCEF implementation strategy, initiates resource reservation process.

Wherein, in EPS, PCEF to lower network element initiate resource reservation process for: the P-GW that PCEF is positioned at sends bearing modification request to S-GW, carry the QoS information (comprising GBR, MBR) in PCC rule, S-GW sends bearing modification request to MME again, and MME sends bearing modification request to eNodeB further, carries QoS information, eNodeB is this carrying Resources allocation according to GBR, and provide safeguard bandwidth.But now GBR and MBR is equal.

In the umts system, PCEF to lower network element initiate resource reservation process for: the GGSN that PCEF is positioned at sends primary PDP context modify request messages to SGSN, carry the QoS information (comprising GBR, MBR) in PCC rule, SGSN sends request the second PDP context modification to UE further.Subsequently, UE is by initiation second PDP context modification process, and NodeB, SGSN, GGSN redistribute resource for this carrying.NodeB is this carrying Resources allocation according to GBR, and provide safeguard bandwidth.But now GBR and MBR is equal.

Embodiment 4

What the present embodiment described is that UE such as embodiment 1 or embodiment 2 set up IP-CAN session and access service, due to the movement of UE, is switched to the wireless base station that is not supported ECN, and the flow process of the PCRF update strategy caused.IP-CAN session wherein after UE switching has BBERF to exist.Detailed process as shown in Figure 7, comprises the following steps:

Step 701: because UE there occurs movement, is linked into another one wireless base station.In this process, object BBERF receives request amendment IP-CAN conversation message, carry wireless base station in this message and do not support that ECN indicates, in the present embodiment, now, the instruction of ECN is not supported in the wireless base station receiving the current access of UE from lower network element (S-GW such as EPS) by object BBERF;

Wherein, in EPS, the wireless base station that object BBERF receives UE access from lower network element supports that the detailed process of the instruction of ECN is as follows:

In the handoff procedure of UE, do not carry in the request message that target eNode B sends to MME and support ECN instruction, therefore MME judges that this eNodeB does not support ECN, therefore carries wireless base station in the request message that sends to S-GW of MME and do not support that ECN indicates.The eNodeB that the BBERF being positioned at S-GW so just obtains the current access of UE does not support the instruction of ECN;

In other embodiments, MME also can not support ECN according to configuration determination target eNode B.Carry wireless base station in the request message that MME sends to S-GW and do not support that ECN indicates.The eNodeB that the BBERF being positioned at S-GW so just obtains the current access of UE does not support the instruction of ECN;

In other embodiments, MME sends in the request message of BBERF and also can not carry the instruction that ECN is supported in any wireless base station, final like this, and according to not having wireless base station to support, ECN instruction judges that ECN is not supported in the base station of the current access of UE to BBERF.

Step 702: object BBERF sends gateway control session to PCRF and sets up Indication message, the instruction that ECN is not supported in user ID, PDN mark and the wireless base station of the current access of UE is carried in this message, or carry user ID and PDN mark, the instruction of ECN is supported in the wireless base station not carrying the current access of UE;

The IP-CAN session of setting up in this gateway control session and embodiment 1 and embodiment 2 associates according to user ID, PDN mark by step 703:PCRF.According to wireless base station, PCRF does not support that ECN indicates, update strategy.Upgrade the qos section of PCC rule, GBR value is set to MBR value, and regular according to the PCC Rulemaking QoS after upgrading.PCRF sends QoS rule to object BBERF;

Step 704: object BBERF implementation strategy.

Wherein, in EPS, object BBERF to lower network element initiate resource reservation process for: the S-GW that object BBERF is positioned at sends bearing modification request to MME, carry the QoS information (comprising GBR, MBR) in QoS rule, MME sends bearing modification request to eNodeB further, carry QoS information, eNodeB is this carrying Resources allocation according to GBR, and provide safeguard bandwidth.But now GBR and MBR is equal.

The gateway that step 705: object BBERF is positioned at sends request amendment IP-CAN conversation message to the gateway that PCEF is positioned at, and carries user ID and PDN mark in this message;

Step 706:PCEF sends IP-CAN session modification Indication message to PCRF;

The PCC rule that step 704 upgrades by step 707:PCRF returns to PCEF;

IP address before switching is returned to object BBERF place gateway by step 708:PCEF place gateway;

Step 709: object BBERF place gateway returns response amendment IP-CAN conversation message, carries IP address.

If ECN is not supported in the wireless base station that UE accesses when setting up PDN and connecting, so in the present invention, BBERF/PCEF does not support the instruction of ECN by receiving wireless base station or does not receive the instruction that ECN is supported in wireless base station, now BBERF/PCEF does not carry the instruction of wireless base station support ECN or carries the instruction that ECN is not supported in wireless base station in the message sent to PCRF, thus PCRF judges that ECN is not supported in the wireless base station of the current access of user, even if carry the instruction that communicating pair supports ECN in the business information of AF that now PCRF receives, in the QoS that PCRF authorizes, the value of GBR is the value of MBR.

Now, if UE there occurs movement, ECN is supported in object wireless base station, so BBERF/PCEF will receive the instruction of wireless base station support ECN, now BBERF/PCEF carries the instruction that ECN is supported in wireless base station in the message sent to PCRF, thus PCRF judges that ECN is supported in the wireless base station of the current access of user.If carry the instruction that communicating pair supports ECN in the business information of AF that now PCRF receives before, so PCRF is by the QoS that again authorizes, and the value of GBR is less than the value of MBR.

In above-mentioned all enforcement, the wireless base station of the current access of UE supports that the instruction of ECN can also be the instruction of wireless base station support based on the congestion control of ECN of the current access of UE, represents the jam control function of wireless base station support based on ECN of the current access of UE.This function arranges congested indicating bit to indicate congested generation (supporting the ECN mechanism of definition in RFC 3168) when being at least included in congested generation.After this function also may be included in and use the instruction of ECN mechanism congested, in graceful time period (grace period), guarantee not packet loss and/or meet other QoS demand (as QCI characteristic).Similarly, the wireless base station of the current access of UE does not support that the instruction of ECN can also be the instruction that the congestion control based on ECN is not supported in the wireless base station of the current access of UE.PCRF, according to above-mentioned instruction, judges whether the wireless base station of the current access of UE supports the congestion control based on ECN.

In other embodiments, according to the configuration information on it, PCRF judges whether the wireless base station of the current access of UE is supported ECN or whether supported the congestion control based on ECN.Such as:

1) if ECN or the congestion control (namely there is not the situation that part is supported) based on ECN are all supported or do not supported in all wireless base stations in a PLMN (Public Land Mobile Network, public land mobile network).PCRF upper configuration PLMN and whether support ECN or whether support the corresponding relation of the congestion control based on ECN.So as the PLMN (this can obtain according to prior art) that PCRF acquisition UE is currently located at, just can judge whether the wireless base station of the current access of UE is supported ECN or supported the congestion control based on ECN.

2) if ECN or the congestion control (namely there is not the situation that part is supported) based on ECN are all supported or do not supported in all wireless base stations in a tracking area TA (Track Area) or Route Area (Routing Area).PCRF upper configuration TA or RA and whether support ECN or whether support the corresponding relation of the congestion control based on ECN.So as TA or RA that PCRF acquisition UE is currently located at, just can judge whether the wireless base station of the current access of UE is supported ECN or supported the congestion control based on ECN.

3) whether the wireless base station that the upper allocating cell of PCRF (cell) and this community belong to is supported ECN or whether is supported the corresponding relation of the congestion control based on ECN.When the community that PCRF acquisition UE is currently located at, just can judge whether the wireless base station of the current access of UE is supported ECN or whether supported the congestion control based on ECN.

Described PCRF, during for carrying out strategic decision-making, whether support whether ECN and described subscriber equipment and Correspondent Node thereof support ECN according to the wireless base station of the current access of subscriber equipment, maximum rate in the quality of service information of Provisioning Policy is greater than guarantee speed, or the maximum rate in the quality of service information of Provisioning Policy equals to ensure speed, issues described strategy to policy execution entity;

Wherein, described PCRF, supports ECN for the wireless base station when the current access of described subscriber equipment, and described subscriber equipment and Correspondent Node thereof support ECN, and the maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed; When ECN is not supported in the wireless base station of the current access of described subscriber equipment, or when described subscriber equipment or its Correspondent Node do not support ECN, the maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

Wherein, described PCRF, for obtaining described subscriber equipment from AF and whether Correspondent Node supports ECN; When described PCRF receives the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof support ECN; When described PCRF does not receive the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof do not support ECN.

Wherein, described system also comprises PCEF or BBERF, wherein:

Whether described PCRF, support ECN for the wireless base station obtaining the current access of described subscriber equipment from PCEF or BBERF; When described PCRF receives the instruction of wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, described PCRF judges that ECN is supported in the wireless base station of the current access of described subscriber equipment; When described PCRF does not receive the instruction of the wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, or, described PCRF does not support the instruction of ECN during from the wireless base station that described PECF or described BBERF receives the current access of subscriber equipment, described PCRF judges that ECN is not supported in the wireless base station of the current access of described subscriber equipment; Or,

Wherein, described system also comprises MME or SGSN, described MME or SGSN, for receiving from the wireless base station of the current access of described subscriber equipment the instruction whether described wireless base station supports ECN, or, after judging whether the wireless base station of the current access of described subscriber equipment supports ECN ability according to configuration information, whether the wireless base station sending the current access of subscriber equipment supports the gateway that the instruction of ECN is positioned to described PCEF.

Wherein, described system also comprises MME, described MME, for receiving from the wireless base station of the current access of described subscriber equipment the instruction whether this wireless base station supports ECN, or, after judging whether the wireless base station of the current access of described subscriber equipment supports ECN ability according to configuration information, whether the wireless base station sending the current access of described subscriber equipment supports the gateway that the instruction of ECN is positioned to described BBERF.

Wherein, described policy execution entity is PCEF, or is PCEF and BBERF, and strategy is sent to PCEF by described PCRF, or, send to PCEF and BBERF, described PCEF, or described PCEF and BBERF performs described strategy.

Wherein, described PCRF, for working as the congestion control of wireless base station support based on ECN of the current access of described subscriber equipment, and described subscriber equipment and Correspondent Node thereof support ECN, and the maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed.

Wherein, described PCRF, for not supporting the congestion control based on ECN when the wireless base station of the current access of described subscriber equipment, or, when described subscriber equipment or its Correspondent Node do not support the congestion control based on ECN, the maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

Wherein, described system also comprises PCEF or BBERF, wherein:

Wherein, described system also comprises MME or SGSN, wherein:

Wherein, described system also comprises MME, wherein:

Described MME, for receiving from the wireless base station of the current access of described subscriber equipment the instruction whether this wireless base station supports the congestion control based on ECN, or, after judging whether the wireless base station of the current access of described subscriber equipment supports the ability based on the congestion control of ECN according to configuration information, whether the wireless base station sending the current access of described subscriber equipment supports the gateway that the instruction based on the congestion control of ECN is positioned to described BBERF.

Claims

1. a strategic charging control method for load Network Based, is characterized in that, comprising:

When strategy and charging regulation function entity PCRF carry out strategic decision-making, whether support whether ecn (explicit congestion notification) ECN and described subscriber equipment and Correspondent Node thereof support ECN according to the wireless base station of the current access of subscriber equipment, maximum rate in the quality of service information of Provisioning Policy is greater than guarantee speed, or the maximum rate in the quality of service information of Provisioning Policy equals to ensure speed;

Described PCRF sends described strategy to policy execution entity, and described policy execution entity performs described strategy;

Wherein, described PCRF obtains described subscriber equipment from Application Function AF and whether Correspondent Node supports ECN; When described PCRF receives the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof support ECN; When described PCRF does not receive the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof do not support ECN.

2. the method for claim 1, is characterized in that,

If ECN is supported in the wireless base station of the current access of described subscriber equipment, and described subscriber equipment and Correspondent Node thereof support that ECN, the described PCRF maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed.

3. the method for claim 1, is characterized in that,

If ECN is not supported in the wireless base station of the current access of described subscriber equipment, or described subscriber equipment or its Correspondent Node do not support ECN, and the described PCRF maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

4. the method as described in claim 1,2 or 3, is characterized in that, described method also comprises:

Whether the wireless base station that described PCRF obtains the current access of described subscriber equipment from strategy and charging execution function entity PCEF or bearing binding and event reporting function entity B BERF supports ECN; When described PCRF receives the instruction of wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, described PCRF judges that ECN is supported in the wireless base station of the current access of described subscriber equipment; When described PCRF does not receive the instruction of the wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, or, described PCRF does not support the instruction of ECN during from the wireless base station that described PCEF or described BBERF receives the current access of subscriber equipment, described PCRF judges that ECN is not supported in the wireless base station of the current access of described subscriber equipment; Or

5. method as claimed in claim 4, is characterized in that, whether described PCEF supports the instruction of ECN according to the wireless base station of subscriber equipment access as described under type acquisition:

Mobile management entity MME or service GPRS gateway support SGSN receive from the wireless base station of the current access of described subscriber equipment the instruction whether described wireless base station supports ECN, or, according to configuration information, described MME or described SGSN judges whether the wireless base station of the current access of described subscriber equipment supports ECN ability after, whether the wireless base station that described MME or SGSN sends the current access of subscriber equipment supports the gateway that the instruction of ECN is positioned to described PCEF.

6. method as claimed in claim 4, is characterized in that, whether the wireless base station that described BBERF obtains subscriber equipment access in the following way supports the instruction of ECN:

7. a strategic charging control method for load Network Based, is characterized in that, comprising:

When strategy and charging regulation function entity PCRF carry out strategic decision-making, whether support whether support ECN based on the congestion control of ecn (explicit congestion notification) ECN and described subscriber equipment and Correspondent Node thereof according to the wireless base station of the current access of subscriber equipment, maximum rate in the quality of service information of Provisioning Policy is greater than guarantee speed, or the maximum rate in the quality of service information of Provisioning Policy equals to ensure speed;

8. method as claimed in claim 7, is characterized in that,

If the wireless base station support of the current access of described subscriber equipment is based on the congestion control of ECN, and described subscriber equipment and Correspondent Node thereof support that ECN, the described PCRF maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed.

9. method as claimed in claim 7, is characterized in that,

If the congestion control based on ECN is not supported in the wireless base station of the current access of described subscriber equipment, or described subscriber equipment or its Correspondent Node do not support ECN, and the described PCRF maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

10. the method as described in claim 7,8 or 9, is characterized in that, described method also comprises:

Whether described PCRF supports the congestion control based on ECN from the wireless base station that strategy and charging execution function entity PCEF or bearing binding and event reporting function entity B BERF obtain the current access of described subscriber equipment; When the instruction of described PCRF to receive the current access of subscriber equipment wireless base station support from described PCEF or described BBERF based on the congestion control of ECN, described PCRF judges the congestion control of wireless base station support based on ECN of the current access of described subscriber equipment; The wireless base station support not receiving the current access of subscriber equipment from described PCEF or described BBERF as described PCRF indicates based on the congestion control of ECN, or, described PCRF does not support the congestion control instruction based on ECN during from the wireless base station that described PCEF or described BBERF receives the current access of subscriber equipment, described PCRF judges that the congestion control based on ECN is not supported in the wireless base station of the current access of described subscriber equipment; Or

11. methods as described in claim 7,8 or 9, it is characterized in that, based on the congestion control of ECN, the wireless base station support of the current access of described subscriber equipment refers to that ECN is supported and after the described ECN of use indicates congested generation in described wireless base station, guarantee not packet loss and/or meet quality of service class mark QCI characteristic within the graceful time period.

12. methods as claimed in claim 10, is characterized in that, whether described PCEF supports the instruction of the congestion control based on ECN according to the wireless base station of subscriber equipment access as described under type acquisition:

Mobile management entity MME or service GPRS gateway support SGSN receive from the wireless base station of the current access of described subscriber equipment the instruction whether described wireless base station supports the congestion control based on ECN, or, after described MME or described SGSN judges according to configuration information the congestion control the ability whether wireless base station of the current access of described subscriber equipment is supported based on ECN, whether the wireless base station that described MME or SGSN sends the current access of subscriber equipment supports the gateway that the instruction based on the congestion control of ECN is positioned to described PCEF.

13. methods as claimed in claim 10, is characterized in that, whether the wireless base station that described BBERF obtains subscriber equipment access in the following way supports the instruction of the congestion control based on ECN:

The policy charging control system of 14. 1 kinds of loads Network Based, is characterized in that, comprises PCRF and policy execution entity:

Described policy execution entity, for receiving described strategy from described PCRF, performs described strategy;

Described system also comprises PCEF or BBERF, wherein:

Whether described PCRF, support ECN for the wireless base station obtaining the current access of described subscriber equipment from PCEF or BBERF; When described PCRF receives the instruction of wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, described PCRF judges that ECN is supported in the wireless base station of the current access of described subscriber equipment; When described PCRF does not receive the instruction of the wireless base station support ECN of the current access of subscriber equipment from described PCEF or described BBERF, or, described PCRF does not support the instruction of ECN during from the wireless base station that described PCEF or described BBERF receives the current access of subscriber equipment, described PCRF judges that ECN is not supported in the wireless base station of the current access of described subscriber equipment; Or

Described PCRF, for judging according to configuration information whether the wireless base station of the current access of described subscriber equipment supports ECN.

15. systems as claimed in claim 14, is characterized in that,

Described PCRF, supports ECN for the wireless base station when the current access of described subscriber equipment, and described subscriber equipment and Correspondent Node thereof support ECN, and the maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed.

16. systems as claimed in claim 14, is characterized in that,

Described PCRF, for not supporting ECN when the wireless base station of the current access of described subscriber equipment, or when described subscriber equipment or its Correspondent Node do not support ECN, the maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

17. systems as described in claim 14,15 or 16, is characterized in that,

Described PCRF, for obtaining described subscriber equipment from AF and whether Correspondent Node supports ECN; When described PCRF receives the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof support ECN; When described PCRF does not receive the instruction of communicating pair support ECN from described AF, described PCRF judges that described subscriber equipment and Correspondent Node thereof do not support ECN.

18. systems as claimed in claim 14, it is characterized in that, described system also comprises MME or SGSN, wherein:

19. systems as claimed in claim 14, it is characterized in that, described system also comprises MME, wherein:

The policy charging control system of 20. 1 kinds of loads Network Based, is characterized in that, comprises PCRF and policy execution entity:

21. systems as claimed in claim 20, is characterized in that,

Described PCRF, for working as the congestion control of wireless base station support based on ECN of the current access of described subscriber equipment, and described subscriber equipment and Correspondent Node thereof support ECN, and the maximum rate arranged in the quality of service information of described strategy is greater than guarantee speed.

22. systems as claimed in claim 20, is characterized in that,

Described PCRF, for not supporting the congestion control based on ECN when the wireless base station of the current access of described subscriber equipment, or when described subscriber equipment or its Correspondent Node do not support the congestion control based on ECN, the maximum rate arranged in the quality of service information of described strategy equals to ensure speed.

23. systems as described in claim 20,21 or 22, it is characterized in that, described system also comprises PCEF or BBERF, wherein:

Described PCRF, whether the wireless base station for obtaining the current access of described subscriber equipment from PCEF or BBERF supports the congestion control based on ECN; When the instruction of described PCRF to receive the current access of subscriber equipment wireless base station support from described PCEF or described BBERF based on the congestion control of ECN, described PCRF judges the congestion control of wireless base station support based on ECN of the current access of described subscriber equipment; When described PCRF does not receive the instruction of wireless base station support based on the congestion control of ECN of the current access of subscriber equipment from described PCEF or described BBERF, or, described PCRF does not support the instruction based on the congestion control of ECN during from the wireless base station that described PCEF or described BBERF receives the current access of subscriber equipment, described PCRF judges that the congestion control based on ECN is not supported in the wireless base station of the current access of described subscriber equipment; Or

24. systems as described in claim 20,21 or 22, it is characterized in that, based on the congestion control of ECN, the wireless base station support of the current access of described subscriber equipment refers to that ECN is supported and after the described ECN of use indicates congested generation in described wireless base station, guarantee not packet loss and/or meet quality of service class mark QCI characteristic within the graceful time period.

25. systems as claimed in claim 23, it is characterized in that, described system also comprises MME or SGSN, wherein:

26. systems as claimed in claim 25, it is characterized in that, described system also comprises MME, wherein:

27. methods as claimed in claim 10, it is characterized in that, based on the congestion control of ECN, the wireless base station support of the current access of described subscriber equipment refers to that ECN is supported and after the described ECN of use indicates congested generation in described wireless base station, guarantee not packet loss and/or meet quality of service class mark QCI characteristic within the graceful time period.

28. systems as claimed in claim 23, it is characterized in that, based on the congestion control of ECN, the wireless base station support of the current access of described subscriber equipment refers to that ECN is supported and after the described ECN of use indicates congested generation in described wireless base station, guarantee not packet loss and/or meet quality of service class mark QCI characteristic within the graceful time period.