CN103856968A

CN103856968A - PCC rule obtaining method and device after Gx interfaces break down

Info

Publication number: CN103856968A
Application number: CN201410084080.3A
Authority: CN
Inventors: 华蕊
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2014-03-07
Filing date: 2014-03-07
Publication date: 2014-06-11
Anticipated expiration: 2034-03-07
Also published as: CN103856968B

Abstract

The invention provides a PCC rule obtaining method and device after Gx interfaces break down. An LTE system comprises UE, a PGW and a PCRF. Fault identifications of the Gx interfaces of all the UE are defaulted as FALSE. The PGW comprises a local strategy and a PCC rule. The method includes the following steps that when the Gx interfaces corresponding to the UE break down, and the fault identifications of the Gx interfaces corresponding to the UE are updated to be TRUE. The PGW judges whether the UE is in an LTE attachment process or not and if yes, the PGW obtains the local PCC rule according to the fault identifications TRUE. The PCC rule obtaining method and device are used for obtaining the PCC rule and ensuring normal access by a user under the condition that normal communication of the user is not affected when communication fails due to the fact that the PCRF or the Gx interfaces break down.

Description

The method of PCC Rule and device after Gx interface fault

Technical field

The present invention relates to mobile communication technology field, particularly relate to the method for PCC Rule after a kind of Gx interface fault, and, the device of PCC Rule after a kind of Gx interface fault.

Background technology

LTE(Long Term Evolution, Long Term Evolution) be new generation broadband wireless mobile communication network technology, can significantly promote wireless network traffic speed, and adopt unified packet domain core network voice-over and data service, and the quality assurance of the real time business such as network carrying voice is problems that industry is paid close attention to.3GPP(the3rd Generation Partnership Project, third generation partner program) standard PCC (strategy and charging control, Policy Control and Charging) framework can effectively realize management and the operation of LTE network data service differentiation, GPRS (the General Packet Radio Service of supported data business real time billing, general packet radio service technology) Online Charging System becomes the focus studied in charge system field and is badly in need of the functional requirement of realizing, and provide business quality assurance end to end, it is the key that realizes the real time business such as speech business in LTE network.

With reference to the network topology structure figure of SAE framework in a kind of LTE of prior art shown in Fig. 1, at the SAE(System of LTE Architecture Evolution, System Architecture Evolution) in, specifically can be included in UTRAN(Universal Terrestrial Radio Access Network, Universal Terrestrial Radio Access Network) GERAN(GSM EDGE Radio Access Network continues, GSM/EDGE wireless communication networks) etc. PCRF (the "Policy and Charging Rules Function entity of communication mutually in network, Policy And Charging Rules Function), AF(Application Function, Application Function), MME (Mobility Management Entity, mobile management entity), HSS(Home Subscriber Server, home subscriber server), SGSN(Service GPRS Supporting Node, Serving GPRS Support Node), PGW(PDN Gataway, packet data gateway), SGW (Serving Gateway, gateway), P-CSCF(Proxy-Call Session Control Function, agent call session control), E-UTRAN (Evolved Universal Terrestrial Radio Access Network, the general continental rise wireless access network of evolution) network element and UE(User Equipment, subscriber equipment) etc. entity, between each entity, pass through Gx, Rx, SGi, S, the interfaces such as Uu communicate the mutual of data, carry out PSS(Packet Switching Service packet switching service) and IMS(IP Multimedia Subsystem IP, IP Multimedia System) etc. business.

In specific implementation, between PGW and PCRF, communicate the mutual of data by Gx interface, Gx interface is mainly used in charging control and policy control.Particularly, in the process of adhering in network at UE, PCRF is configured to PCC rule by policing rule and is handed down to PGW, PGW is tied to these rules in the carrying of corresponding UE, be issued to service surface and carry out, reach the object of the policy control such as packet network service transfer of data QoS and flow based charging policy control.

Obstructed in PCRF fault or the Diameter link of Gx interface based on Diameter foundation in LTE, when UE initiate to adhere to or set up, while upgrading dedicated bearer, will cause PGW and PCRF failure alternately, and then it is failed to cause obtaining PCC strategy, cause UE cannot access or bearer operation failure, affect user and normally access.

With reference to UE attaching process schematic diagram in a kind of LTE of the prior art shown in Fig. 2, specifically can comprise the steps:

1, UE is to eNodeB(Evolved Node Base, evolution base station) transmission Attach Request message Attach Request;

2, eNodeB forwards Attach Request to MME (Mobility Management Entity, mobile management entity);

3, MME is to HSS(Home Subscriber Server, home subscriber server) transmission authentication information request message Authentication Information Request;

4, MME receives the authentication information response message Authentication Information Answer that HSS returns;

Authenticate between 5, UE and MME/secure authentication flow process Authentication/Security, confirms that whether the UE of access is legal safely;

6, SGW sends location update request message Update Location Request to HSS;

7, HSS upgrades response message Update Location Answer for Update Location Request home position;

8, MME sends conversation establishing request message Create Session Request to SGW;

9, SGW forwards Create Session Request to PGW;

Between 10, PGW and PCRF, carry out PCEF IP-CAN (IP-Connectivity Access Network, IP connected reference network) initiation session process of establishing Initiated IP-CAN Session Establishment;

11, PGW returns to conversation establishing response message Create Session Response;

12, SGW forwards Create Session Response to MME;

13, MME sends initial context to eNodeB request message/adhere to and accept message Initial Context Setup Request/Attach Accept is set;

14, eNodeB sends Attach Accept to UE;

15, UE returns and has adhered to message Attach Complete to eNodeB;

16, eNodeB sends initial context to MME response message Initial Context Setup Response is set;

17, eNodeB sends Attach Complete to MME;

18, MME sends bearing modification request message Modify Bearer Request to SGW;

19, SGW returns to bearing modification response message Modify Bearer Response to MME.

In the UE attaching process shown in Fig. 2, when PGW receives after Create Session Request, if be deployed with PCRF in LTE, send CCR(credit control request, credit control request information to PCRF), to set up IP-CAN session.When PCRF fault or Gx interface Diameter link are when obstructed, PGW will retransmit CCR to PCRF, until the timer expiry in PGW.If PGW does not still receive the CCA(credit control answer that PCRF sends, Credit Control Answer message after timer expiry), reply the Create Session Response that creates conversation failure to SGW, the failure of UE attachment flow.Due to according to protocol interaction flow process, PGW sends after CCR to PCRF, and PCRF responds CCA by the time, just can carry out mutual with follow-up network element, otherwise think that PCRF is abnormal or link is abnormal, the failure of UE attachment flow.

Therefore, one of problem that those skilled in the art are in the urgent need to address is, method and the device of PCC Rule after a kind of Gx interface fault are proposed, in order to when the communication failures such as PCRF or Gx interface fault, do not affecting under the situation of user's proper communication, obtain PCC rule, ensure user's normal access.

Summary of the invention

Technical problem to be solved by this invention is to provide the method for PCC Rule after a kind of Gx interface fault, in order to when the communication failures such as PCRF or Gx interface fault, do not affecting under the situation of user's proper communication, obtaining PCC rule, ensureing user's normal access.

Accordingly, the present invention also provides the device of PCC Rule after a kind of Gx interface fault.

In order to address the above problem, the invention discloses the method for PCC Rule after a kind of Gx interface fault, described Long Term Evolution LTE system comprises user equipment (UE), packet data gateway PGW and "Policy and Charging Rules Function entity PCRF, the failure identification of the Gx interface that in described PGW, each UE is corresponding is defaulted as FALSE, described PGW comprises local policy and charging control PCC rule, and described method comprises:

In the time of Gx interface fault corresponding to described UE, the failure identification of Gx interface corresponding described UE is updated to TRUE by described PGW;

Described PGW judges that described UE is whether in the attaching process in LTE;

If in the attaching process of described UE in LTE, described PGW obtains local PCC rule according to described failure identification TRUE.

Preferably, described PGW comprises strategy execution and charging performance element PCEF, preserves identical Rule Information in described PCEF and PCRF, before described PGW arranges the step of failure identification TRUE for described Gx interface, also comprises:

Described PGW receives the PCC rule name that described "Policy and Charging Rules Function entity PCRF sends;

Described PGW searches corresponding PCC Rule Information according to described PCC rule name in the Rule Information of described PCEF;

Described PGW installs described PCC Rule Information and generates local PCC rule.

Preferably, described method also comprises:

After described Gx interface fault recovers, described PGW receives establishment/more request message of new bearer that described UE sends;

Described PGW judges for described request message whether the failure identification of described Gx interface is TRUE; If it is TRUE that described PGW judges the failure identification of described Gx interface,, described PGW returns to establishment/more new bearer failure to described UE.

Preferably, described method also comprises:

After described PCRF equipment is restarted, described PGW judges whether the failure identification of described Gx interface is TRUE;

If not, described PGW discharges the carrying of described UE.

Preferably, described Gx interface fault judges as follows:

Described PGW sends credit control request information CCR to described PCRF;

Described PGW judges whether to receive within the default time Credit Control Answer message CCA that described PCRF returns;

If not, described PGW judges described Gx interface fault.

The embodiment of the invention also discloses the device of PCC Rule after a kind of Gx interface fault, described Long Term Evolution LTE system comprises user equipment (UE), packet data gateway PGW and "Policy and Charging Rules Function entity PCRF, the failure identification of the Gx interface that in described PGW, each UE is corresponding is defaulted as FALSE, described PGW comprises local policy and charging control PCC rule, and described device comprises:

Be positioned at the update module of PGW, in order to when Gx interface fault corresponding to described UE, the failure identification of Gx interface corresponding described UE be updated to TRUE;

Be positioned at the judge module of PGW, judge that in order to described PGW described UE is whether in the attaching process in LTE;

Be positioned at the acquisition module of PGW, in order in the attaching process in LTE at described UE time, obtain local PCC rule according to described failure identification TRUE.

Preferably, described PGW comprises strategy execution and charging performance element PCEF, preserves identical Rule Information in described PCEF and PCRF, also comprises:

Be positioned at the reception submodule of PGW, the PCC rule name sending in order to receive described "Policy and Charging Rules Function entity PCRF;

Be positioned at the submodule of searching of PGW, in order to search corresponding PCC Rule Information according to described PCC rule name in the Rule Information of described PCEF;

Be positioned at the generation submodule of PGW, generate local PCC rule in order to described PCC Rule Information to be installed.

Preferably, described device also comprises:

Be positioned at the request message receiver module of PGW, after recovering at described Gx interface fault, receive establishment/more request message of new bearer that described UE sends;

Whether be positioned at the first condition judgment module of PGW, be TRUE in order to the failure identification that judges described Gx interface for described request message;

Be positioned at the failed message sending module of PGW, in order to judge that at described PGW the failure identification of described Gx interface is TRUE, return to establishment/more new bearer failure to described UE.

Preferably, described device also comprises:

Be positioned at the second condition judgment module of PGW, after restarting at described PCRF equipment, judge whether the failure identification of described Gx interface is TRUE; If not, call

Be positioned at the carrying release module of PGW, in order to discharge the carrying of described UE.

Preferably, described device also comprises:

Be positioned at the control message sending module of PGW, in order to send credit control request information CCR to described PCRF;

Be positioned at the time judgment module of PGW, in order to judge whether the receiving Credit Control Answer message CCA that described PCRF returns within the default time; If not, call the fault verification module that is positioned at PGW;

Be positioned at the fault verification module of PGW, in order to judge described Gx interface fault.

Compared with prior art, the present invention includes following advantage:

In embodiments of the present invention, when PCRF fault or Gx interface Diameter link are when obstructed, the failure identification of Gx interface is updated to TRUE from FALSE, if now UE is in network in the process in adhering to, PGW obtains local PCC rule according to the failure identification of the described Gx interface for TRUE, avoid causing the failure alternately with PCRF owing to obtaining the failure of PCC rule, ensure user's normal access.

In embodiments of the present invention, for fear of local PCC rule and the authorized rule conflict of PCRF, process in the following way for following several situations:

If the first PCRF recovers normal or Gx interface Diameter link-recovery; for the user who has adopted local PCC rule; until this user's bearing resource discharges; still adopt the PCC rule of PGW local policy decision-making in follow-up other flow processs; but in the network attachment process of user next time, the PCC rule that can adopt PCRF to authorize.

If it is normal that the second PCRF is restarted rear recovery, at this moment need to discharge the user of the upper access of this PCRF, if but this user has adopted local PCC rule, do not discharge, until this user initiates attachment removal.

If the 3rd PCRF fault or Gx interface Diameter link obstructed before, access a part of user, so when PCRF fault or Gx interface Diameter link are when obstructed, if this certain customers' request foundation or more new bearer, clash with the authorized PCC rule of PCRF for fear of local PCC rule so, PGW receives foundation that PCRF returns or new bearer failed message more, sets up and carries unsuccessfully.

Brief description of the drawings

Fig. 1 is the network topology structure figure of SAE framework in a kind of LTE of prior art;

Fig. 2 is UE attaching process schematic diagram in a kind of LTE of prior art;

Fig. 3 is the flow chart of steps of the embodiment of the method 1 of PCC Rule after a kind of Gx interface fault of the present invention;

Fig. 4 is the flow chart of steps of the embodiment of the method 2 of PCC Rule after a kind of Gx interface fault of the present invention;

Fig. 5 is the flow chart of steps of the embodiment of the method 3 of PCC Rule after a kind of Gx interface fault of the present invention;

Fig. 6 is a kind of LTE schematic network structure of the present invention;

Fig. 7 is the structured flowchart of the device embodiment of PCC Rule after a kind of Gx interface fault of the present invention.

Embodiment

For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.

Embodiment mono-:

With reference to Fig. 3, show the flow chart of steps of the embodiment of the method 1 of PCC Rule after a kind of Gx interface fault of the present invention, in described Long Term Evolution LTE system, can comprise user equipment (UE), packet data gateway PGW and "Policy and Charging Rules Function entity PCRF, the failure identification of the Gx interface that in described PGW, each UE is corresponding can be defaulted as FALSE, in described PGW, can comprise local PCC rule, described method specifically can comprise the steps:

Step 101, in the time of Gx interface fault corresponding to described UE, the failure identification of Gx interface corresponding described UE is updated to TRUE by described PGW;

In embodiments of the present invention, in PGW, the failure identification of Gx interface can be set in default in advance as FALSE, represent that now the Gx interface Diameter link of PCRF and UE is normally worked.

In a preferred embodiment of the present invention, described Gx interface fault can judge as follows:

Step S11, described PGW sends credit control request information CCR to described PCRF;

Step S12, described PGW judges whether to receive within the default time Credit Control Answer message CCA that described PCRF returns; If not, perform step S13;

Step S13, described PGW judges described Gx interface fault.

In specific implementation, adhere in interaction flow at UE according to agreement, PGW sends after CCR to PCRF; by the time PCRF responds CCA; just can carry out mutual with follow-up network element, otherwise think that PCRF is abnormal or Gx interface link Diameter is abnormal, think the attachment flow failure of UE at LTE.

In embodiments of the present invention, when PGW sends after CCR, if do not receive the CCA of PCRF in Preset Time, think that PCRF fault or Gx interface link Diameter are abnormal, the failure identification that now UE that initiates attachment flow can be defaulted as to the Gx interface of FALSE is updated to TRUE.

It should be noted that, can also adopt in actual applications other modes that PCRF fault or the abnormal mark of Gx interface link Diameter are set, in the embodiment of the present invention, this is not limited.

Step 102, described PGW judges that described UE is whether in the attaching process in LTE; If in the attaching process of described UE in LTE, perform step 103;

Step 103, described PGW obtains local PCC rule according to described failure identification TRUE.

In actual applications, in the time that the Gx interface Diameter link between discovery PCRF fault or UE and PCRF is obstructed, the failure identification of described Gx interface is updated to TRUE by PGW, if UE is also in the attaching process in LTE, not yet successful connection of UE and PCRF, PGW does not also get PCC rule, and be bound to the carrying of UE, the application embodiment of the present invention, can trigger and obtain local PCC rule, and avoiding affects user's normal access owing to obtaining the failure of PCC rule.

In a kind of example of the concrete application of the present invention, if PCRF fault or Gx interface Diameter link obstructed before, access a part of user, so when PCRF fault or Gx interface Diameter link are when obstructed, if this certain customers' request foundation or more new bearer, PGW for set up or more new bearer return to failure, avoid the authorized rule conflict of local policy and PCRF.

Embodiment bis-:

With reference to Fig. 4, show the flow chart of steps of the embodiment of the method 2 of PCC Rule after a kind of Gx interface fault of the present invention, in described Long Term Evolution LTE system, can comprise user equipment (UE), packet data gateway PGW and "Policy and Charging Rules Function entity PCRF, the failure identification of the Gx interface that in described PGW, each UE is corresponding can be defaulted as FALSE, in described PGW, can comprise local policy and charging control PCC rule, described method specifically can comprise the steps:

Step 201, in the time of Gx interface fault corresponding to described UE, the failure identification of Gx interface corresponding described UE is updated to TRUE by described PGW;

Step 202, described PGW judges that described UE is whether in the attaching process in LTE; If in the attaching process of described UE in LTE, perform step 103;

Step 203, described PGW obtains local PCC rule according to described failure identification TRUE;

Step 204, after described Gx interface fault recovers, described PGW receives establishment/more request message of new bearer that described UE sends;

Step 205, described PGW judges for described request message whether the failure identification of described Gx interface is TRUE; If it is TRUE that described PGW judges the failure identification of described Gx interface, perform step 206;

Step 206, described PGW returns to establishment/more new bearer failure to described UE.

The application embodiment of the present invention; if PCRF recovers normal or Gx interface Diameter link-recovery; but the failure identification of the Gx interface of UE is TRUE; illustrate and adopted local PCC rule; therefore for fear of with local PCC rule conflict; for the user who has adopted local PCC rule; until this user's bearing resource discharges; still adopt the PCC rule of PGW local policy decision-making in follow-up other flow processs; but in the network attachment process of user next time, the PCC rule that can adopt PCRF to authorize.

Embodiment tri-:

With reference to Fig. 5, show the flow chart of steps of the embodiment of the method 3 of PCC Rule after a kind of Gx interface fault of the present invention, in described Long Term Evolution LTE system, can comprise user equipment (UE), packet data gateway PGW and "Policy and Charging Rules Function entity PCRF, the failure identification of the Gx interface that in described PGW, each UE is corresponding can be defaulted as FALSE, in described PGW, can comprise local policy and charging control PCC rule, described method specifically can comprise the steps:

Step 301, in the time of described Gx interface fault corresponding to UE, the failure identification of Gx interface corresponding described UE is updated to TRUE by described PGW;

Step 302, described PGW judges that described UE is whether in the attaching process in LTE; If in the attaching process of described UE in LTE, perform step 103;

Step 303, described PGW obtains local PCC rule according to described failure identification TRUE;

Step 304, after described PCRF equipment is restarted, described PGW judges whether the failure identification of described Gx interface is TRUE; If not, perform step 305;

Step 305, described PGW discharges the carrying of described UE.

The application embodiment of the present invention, if it is normal that PCRF is restarted rear recovery, at this moment need to discharge the user of the upper access of this PCRF, if but the failure identification of Gx interface corresponding to UE is TRUE, illustrates that this user has adopted local PCC rule, the PCC rule conflict of authorizing for fear of local PCC rule and PCRF, do not discharge, until this user initiates attachment removal, but in the network attachment process of user next time, the PCC rule that can adopt PCRF to authorize.

In order to make those skilled in the art further understand the embodiment of the present invention, below adopt concrete example to describe.

With reference to the of the present invention a kind of LTE schematic network structure shown in Fig. 6, the functional description of each entity is as follows:

PCRF:PCRF comprises policy control decision-making and the function based on flow based charging control, according to the restriction of user access network, the current ongoing applied business information of user, the configuration of local operator and user signing contract information, formulate corresponding PCC strategy (PCC rule), and PCC strategy is offered to PCEF (Policy Control and Charging Enforcement Function, strategy and charging execution function entity) execution.PCC strategy comprises: business data flow detection, QoS (Quality of Service, service quality), gate and the charging based on stream etc.Adopting Gx with the interface of PCEF, is the application protocol based on Diameter.

PCEF:PCEF(Policy and Charging Enforcement Function, strategy and charge execution function) mainly comprise detection, strategy execution and the billing function based on stream of business data flow.This functional entity is positioned at gateway, for example GPRS (General Packet Radio Service, general packet radio service technology) GGSN(Gateway GPRS Support Node, gateway GPRS supporting node (GGSN)), the PGW of EPC etc., also can independently dispose.

AF:AF(Application Function, Application Function) functional entity is to provide Application Service Element, and mainly to IP-CAN user's face, dynamic strategy/charging control is carried out in behavior.These service needed dynamic strategies and charging control.AF, by Rx interface, transmits the dynamic session information that PCRF needs, and receives IP and connects the customizing messages of Access Network (IP-CAN) and the confirmation of IP-CAN bearing bed event.

OCS:(Online Charging System, Online Charging System), this function provides the credit control function based on user and business data flow.Mainly, by module compositions such as online acquisition, charging control, wholesale price, management of balances, realize online charging function, and coordinated other charging network element equipment to carry out real-time call control.

OFCS:OFCS(Offline Charging System, off-line accounting system), this function provides the billing function based on user and business data flow.Major function comprises customer service, service management, charging, clearing, Account Disposal, system management etc.It is a rear payment process system for ticket and account.

SPR:SPR(Subscription Profile Repository, user property memory) include and all contracted users or signing relevant information, the CAMEL-Subscription-Information that SPR provides comprises: the business that contracted user allows; The priority (optional) of each permission business; The QoS information that contracted user allows; The charging relevant information of contracted user's business, as access style, positional information and access times; Contracted user's type etc.SPR may with multiple database associations of distributing in carrier network.SPR and PCRF are undertaken by Sp interface alternately.

BBERF:BBERF(Bearing Binding and Event Report Function, bearing binding and event reporting function), it be bearing binding, up bearing binding verification and in the time that Gxx exists to PCRF(strategy and charging rule functions) carry out the Policy Enforcement Point of event report.

In a preferred embodiment of the present invention, described PGW can comprise strategy execution and charging performance element PCEF, in described PCEF and PCRF, can preserve identical Rule Information, and described local PCC rule can generate as follows:

Step S1, described PGW receives the PCC rule name that described "Policy and Charging Rules Function entity PCRF sends;

Step S2, described PGW searches corresponding PCC Rule Information according to described PCC rule name in the Rule Information of described PCEF;

Step S3, described PGW installs described PCC Rule Information and generates local PCC rule.

In specific implementation, comprise PCEF in PGW inside, the function of PCEF is that strategy execution and charging are carried out.Some identical Rule Informations have been arranged with PCRF according to agreement PCEF simultaneously, PCRF can indicate PCEF that predefine rule is installed, PCEF finds corresponding PCC Rule Information in the Rule Information of PCEF storage inside according to rule name, then installs as local PCC rule.As can be seen here, the local PCC rule identical with there is partial configuration in PCRF at PCEF, so judge that PCRF fault or Gx interface Diameter link are when obstructed as PGW, PGW can enable the local PCC strategy of internal configurations certainly, without mutual with PCRF, do not affect user's normal access.Specific practice is as follows:

(1) when PGW sends after CCR to PCRF, within a period of time, do not receive the CCA of PCRF, think that PCRF fault or Gx interface Diameter link are obstructed.Now, the Gx interface fault that UE is set is designated TRUE, and this mark default value is FALSE.

(2) if the attachment flow that current flow process is UE is enabled PGW local decision-making process, carry out PCC strategic decision-making.

(3) if the Gx interface fault of UE is designated TRUE, enable the decision-making of PGW local policy.

(4) if the Gx interface fault of UE is designated FALSE, and active procedure is not attaching process, for fear of PCRF authorizes before rule and PGW this locality PCC policy conflict, can not enable local PCC strategy, operation failure in this situation.

(5) although adopt the operation failure of local PCC strategy in (4), under worst case, user face data can be walked on default bearing, can be because (4) unsuccessfully cause user data loss or break.

(6) after PCRF or Gx interface Diameter link-recovery are normal, UE access procedure if, and Gx interface fault is designated TRUE, the rule of authorizing for fear of PCRF produces and conflicts with the rule of local policy decision-making before, at this moment still keep the local PCC strategy of PGW, not mutual with PCRF, until this UE discharges.This UE accesses rear normal mutual with PCRF again, obtains the PCC strategy of PCRF mandate.

(7) after PCRF equipment is restarted, PGW need to discharge the UE of the upper access of this PCRF, is designated the user of TRUE, owing to having used local PCC strategy not discharge, until this UE attachment removal for Gx interface fault.This UE accesses rear normal mutual with PCRF again, obtains the PCC strategy of PCRF mandate.

It should be noted that, for embodiment of the method, for simple description, therefore it is all expressed as to a series of combination of actions, but those skilled in the art should know, the application is not subject to the restriction of described sequence of movement, because according to the application, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and related action might not be that the application is necessary.

Embodiment tetra-:

With reference to Fig. 7, show the device example structure block diagram of PCC Rule after a kind of Gx interface fault of the present invention, in described Long Term Evolution LTE system, can comprise user equipment (UE), packet data gateway PGW and "Policy and Charging Rules Function entity PCRF, the failure identification of the Gx interface that in described PGW, each UE is corresponding can be defaulted as FALSE, in described PGW, can comprise local policy and charging control PCC rule, described device specifically can comprise as lower module:

Be positioned at the update module 401 of PGW, in order to when Gx interface fault corresponding to described UE, the failure identification of Gx interface corresponding described UE be updated to TRUE;

In a preferred embodiment of the present invention, can also comprise:

Be positioned at the judge module 402 of PGW, judge that in order to described PGW described UE is whether in the attaching process in LTE;

Be positioned at the acquisition module 403 of PGW, in order in the attaching process in LTE at described UE time, obtain local PCC rule according to described failure identification TRUE.

In a preferred embodiment of the present invention, described PGW comprises strategy execution and charging performance element PCEF, preserves identical Rule Information in described PCEF and PCRF, can also comprise:

In a preferred embodiment of the present invention, can also comprise:

Whether, in order to the failure identification that for described request message judge described Gx interface be TRUE, and whether described UE is in the attaching process in LTE if being positioned at the first condition judgment module of PGW;

Be positioned at the failed message sending module of PGW, in order to judge that at described PGW the failure identification of described Gx interface is TRUE, and described UE does not have, in the attaching process in LTE, to return to establishment/more new bearer failure to described UE.

In a preferred embodiment of the present invention, can also comprise:

For device embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part is referring to the part explanation of embodiment of the method.

Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.

Those skilled in the art should understand, the application's embodiment can be provided as method, device or computer program.Therefore, the application can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the application can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.

The application is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present application, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.

Although described the application's preferred embodiment, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the application's scope.

Finally, also it should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.

Method to PCC Rule after a kind of Gx interface fault provided by the present invention above, and, the device of PCC Rule after a kind of Gx interface fault, be described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.

Claims

1. the method for PCC Rule after a Gx interface fault, it is characterized in that, described Long Term Evolution LTE system comprises user equipment (UE), packet data gateway PGW and "Policy and Charging Rules Function entity PCRF, the failure identification of the Gx interface that in described PGW, each UE is corresponding is defaulted as FALSE, described PGW comprises local policy and charging control PCC rule, and described method comprises:

2. method according to claim 1, it is characterized in that, described PGW comprises strategy execution and charging performance element PCEF, preserves identical Rule Information in described PCEF and PCRF, before described PGW arranges the step of failure identification TRUE for described Gx interface, also comprise:

3. method according to claim 1, is characterized in that, also comprises:

4. according to the method described in claim 1 or 3, it is characterized in that, also comprise:

If not, described PGW discharges the carrying of described UE.

5. method according to claim 1, is characterized in that, described Gx interface fault judges as follows:

Described PGW sends credit control request information CCR to described PCRF;

If not, described PGW judges described Gx interface fault.

6. the device of PCC Rule after a Gx interface fault, it is characterized in that, described Long Term Evolution LTE system comprises user equipment (UE), packet data gateway PGW and "Policy and Charging Rules Function entity PCRF, the failure identification of the Gx interface that in described PGW, each UE is corresponding is defaulted as FALSE, described PGW comprises local policy and charging control PCC rule, and described device comprises:

7. device according to claim 6, is characterized in that, described PGW comprises strategy execution and charging performance element PCEF, preserves identical Rule Information in described PCEF and PCRF, also comprises:

8. device according to claim 6, is characterized in that, also comprises:

9. according to the device described in claim 6 or 8, it is characterized in that, also comprise:

10. device according to claim 6, is characterized in that, also comprises: