CN101459906A - PCC rule updating method and device - Google Patents

PCC rule updating method and device Download PDF

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Publication number
CN101459906A
CN101459906A CNA2007103012087A CN200710301208A CN101459906A CN 101459906 A CN101459906 A CN 101459906A CN A2007103012087 A CNA2007103012087 A CN A2007103012087A CN 200710301208 A CN200710301208 A CN 200710301208A CN 101459906 A CN101459906 A CN 101459906A
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access style
user terminal
message
current
user
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CN101459906B (en
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商秋
戚彩霞
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN2007103012087A priority Critical patent/CN101459906B/en
Priority to PCT/CN2008/072769 priority patent/WO2009076814A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0894—Policy-based network configuration management

Abstract

The embodiment of the invention discloses a PCC rule updating method, which is applied in a network using a saving signaling mechanism, and comprises receiving messages related to a user terminal when the state of the user terminal is changed into an active state, obtaining the current access type of the user terminal, sending a notice message carrying the current access type of the user terminal to a gateway device P-GW, and informing the P-GW to conduct the PCC updating. The embodiment of the invention further discloses a PCC rule updating device. Through the embodiment of the invention, an S-GW informs the P-GW the current access type of the user terminal, the P-GW configures the appropriate PCC rules for a user according to the current access type of the user terminal., thereby avoiding the unmatched problem of PCC rules and the current access type in the technical weaknesses, and making the services carry out smoothly.

Description

A kind of PCC rule update method and equipment
Technical field
The present invention relates to communication technical field, relate in particular to a kind of PCC rule update method and equipment under the saving signaling.
Background technology
The core net of wireless evolution network mainly comprises MME (Mobility Management Entity, mobile management network element), Serving Gateway (gateway), PDN Gateway (Public DataNetwork Gateway, the public data network gateway) three logic function bodies, wherein, MME is responsible for NAS (Non Access Stratum, Non-Access Stratum) signaling and NAS signaling are encrypted and roaming, functions such as tracking, distributing user temporary identity sign, safety function etc., it is corresponding to current UMTS (UniversalMobile Telecommunications System, universal mobile telecommunications system) the control plane part of internal system SGSN (Serving GPRS Support Node, Serving GPRS Support Node).ServingGateway (hereinafter to be referred as S-SW) is responsible for the local mobility anchor point and the mobility anchor point and the Lawful Interception relevant information of 3GPP (3rd GenerationPartnership Project, third generation partner program) internal system.
PDN Gateway (hereinafter to be referred as P-GW) then is responsible for strategy execution and charging and Lawful Interception correlation function, wherein the foundation of strategy execution and charging is PCC (Policy and Charging Control, the strategy and the control of chargeing) rule, the PCC rule is to be handed down to P-GW by PCRF (Policy and Charging Rule Function, strategy and charging decision making function) functional entity.When the PCRF entity issued the PCC rule, the RAT that the PCC rule need be current according to the user (Radio Access Type, wireless access type) determined that different RAT may issue different PCC rules.
Saving signaling is called the saving signaling (ISR, Idle-mode SignalingReduction) under the idle condition again.When different access styles, as 2G/3G and LTE (Long Term Evolution, Long Term Evolution)/SAE (System Architecture Evolution, System Architecture Evolution) simultaneously during on-premise network, the user can be switched between the system of different access styles continually, switch to LTE such as the user from 3G, thereby can waste a large amount of interface-free resources.And most of user is in idle condition, in order to reduce the generation of this switching flow at user's idle condition, has proposed the notion of ISR.ISR only just can play the effect of saving space interface signaling to the subscriber equipment under the idle condition.Some principles that ISR should follow are as follows: UE is registered to MME and SGSN respectively; MME and SGSN are registered to HSS, and HSS safeguards two PS registrations; SGSN and MME need notify UE whether to use the ISR function; Do not use ISR mechanism under the URA-PCH state; If 3G adopts ISR mechanism, then the user's face under the idle pulley ends at S-GW; Whether UE is used the ISR function need be notified to S-GW; Two cycles of the last operation of UE are upgraded timer, and the cycle is upgraded SGSN and MME respectively.Implicit detach user Shi Ying does not avoid PDP Context or bearer context on the Serving GW deleted owing to receive the cycle to upgrade for SGSN and MME.
Adopted under the situation of saving signaling mechanism, after the user switched to the LTE network from 3G, the user initiated Service Request (service request) flow process and may further comprise the steps as shown in Figure 2:
Step s201, UE send NAS signaling Service Request to MME, ask to recover to eat dishes without rice or wine the side carrying.
Step s202, eNodeB are transmitted to MME with the NAS signaling that UE sends, and NAS signaling authentication process may be performed.
Step s203, MME send context to eNodeB and set up request message, and this step is set up bearer context in eNodeB, and activate the S1 carrying.
Step s204, eNodeB initiate the process that radio bearer is set up, and the wireless side carrying is resumed.
Step s205, data uplink link are got through.
Step s206, eNodeB respond initial context and finish message, and its user's face address and TEID are notified to MME.
Step s207, MME give S-GW starting update load bearing message, and user's face address and TEID that eNodeB is fed back are notified to S-GW.This moment, the downlink data link was got through.
Step s208, S-GW respond the more message of new bearer.
Wherein, above-mentioned steps s203～step s206 is the RAB that MME eats dishes without rice or wine according to the bearer context recovery that keeps; Step s207～step s208 is MME by finishing the renewal in downlink user face tunnel alternately with S-GW.
The inventor finds that there is following problem in implementation of the prior art:
Enabled under the situation of saving signaling mechanism above-mentioned user and network, if the user had adopted 3G network to carry out business before inserting the LTE system, the PCC rule that keeps among the P-GW is the pairing PCC rule of 3G just; And after the user is linked into the LTE system, when initiating Service Request flow process and beginning to carry out business, the PCC rule of very possible still in store 3G among the P-GW.Therefore, keeping PCC rule of using and the business that the incongruent situation of the current access style of user can cause the user to carry out among this P-GW is carried out mistakenly.Equally, in the system of having enabled saving signaling (2G/3G and LTE), when carrying out business, the user also all can have above-mentioned technological deficiency.
Summary of the invention
Embodiments of the invention provide a kind of PCC rule update method and equipment, are used for guaranteeing that P-GW keeps the PCC rule of using and is consistent with the current access style of user.
For achieving the above object, embodiments of the invention provide a kind of PCC rule update method, have been applied to enable in the network of saving signaling mechanism, may further comprise the steps:
When user terminal state becomes activated state, receive message about user terminal, obtain the current access style of described user terminal;
Send the notification message that carries the current access style of described user terminal to gateway device P-GW, notify described P-GW to carry out PCC and upgrade.
Embodiments of the invention also provide a kind of gateway S-GW, have been used for enabling the PCC Policy Updates control of the network of saving signaling mechanism, comprising:
The access style acquiring unit is used for when user terminal state becomes activated state, receives the message about user terminal, obtains the current access style of described user terminal;
The updating message transmitting element is used for sending the notification message carry the current access style of user terminal that described access style acquiring unit obtains to P-GW, notifies described P-GW to carry out PCC and upgrades.
Embodiments of the invention also provide a kind of informing function entity, have been used for enabling the PCC Policy Updates control of the network of saving signaling mechanism, comprising:
The access style acquiring unit when being used to receive the request of the user terminal transmission of having enabled saving signaling mechanism, obtains the current access style of described user terminal;
The access style notification unit is used for the current access style notice S-GW of described user terminal that described terminal access style acquiring unit is obtained.
Embodiments of the invention also provide a kind of terminal equipment, and the access style when being used to enable saving signaling mechanism reports, and comprising:
Terminal access style judging unit is used for system and switches the back when network side is initiated request, judges whether current access style is identical with the access style of local record, if difference then notify terminal access style notification unit, otherwise would not do not carry out any processing;
Terminal access style notification unit when being used to receive the notice of described terminal access style judging unit, changing the current access style of the sign described terminal of informing network side by access style variation has taken place.
Compared with prior art, embodiments of the invention have the following advantages:
The technical scheme of the application of the invention, S-GW is after knowing the access style of user terminal, the current access style of notice this user terminal of P-GW is that the user disposes suitable PCC rule by P-GW according to the current access style of user terminal.Thereby the PCC that has avoided being carried in technical disadvantages rule and the unmatched problem of current RAT, the business that makes can be carried out smoothly.
Description of drawings
Fig. 1 is radio gradual network structure figure of the prior art;
Fig. 2 is the Service Request flow chart under the LTE framework of the prior art;
Fig. 3 is the flow chart of PCC rule update method in the embodiments of the invention;
Fig. 4 is a Client-initiated Service Request flow chart under the LTE/SAE framework in the embodiments of the invention one;
Fig. 5 is a Client-initiated Service Request flow chart under the 3G framework in the embodiments of the invention two;
Fig. 6 is a Client-initiated Service Request flow chart under the 3G framework in the embodiments of the invention three;
Fig. 7 is a Client-initiated Service Request flow chart under the LTE/SAE framework in the embodiments of the invention four;
Fig. 8 is a Client-initiated message flow chart under the 2G framework in the embodiments of the invention five;
Fig. 9 is the PCC Policy Updates system schematic in the embodiments of the invention six;
Figure 10 is the structural representation of terminal equipment in the embodiments of the invention seven.
Embodiment
Below in conjunction with drawings and Examples, embodiments of the present invention are described in further detail.
In the embodiments of the invention, provide a kind of PCC rule update method, be applied to enable in the network of saving signaling mechanism, as shown in Figure 3, may further comprise the steps:
Step s301, S-GW receive the message about user terminal, obtain the current access style of user terminal.
Concrete, for different networks such as LTE and 3G, this method that obtains access style is identical.Mobility Management Entity (as MME or SGSN) can send a notification message to S-GW after User Status becomes state of activation perceiving.S-GW therefrom parses the current access style of user terminal after receiving the message that Mobility Management Entity sends.
Step s302, S-GW send the notification message that carries the current access style of user terminal to P-GW, and notice P-GW carries out PCC to be upgraded.
The access style that step s303, P-GW are current according to user terminal upgrades the PCC rule.
Concrete, the access style that P-GW is current according to user terminal obtains corresponding PCC rule from network side PCRF, and perhaps P-GW obtains corresponding PCC rule from this locality, uses for user terminal.
Below in conjunction with concrete application scenarios, the concrete application of a kind of PCC rule update method in the embodiment of the invention is described.
In the embodiments of the invention one, compare comparatively example with the access style that S-GW preserves, a kind of PCC rule update method in the embodiment of the invention is described with the access style that the S-GW that is arranged in the LTE network architecture is current with the user who receives.
Concrete, Client-initiated Service Request flow process may further comprise the steps as shown in Figure 4 under the LTE/SAE framework:
S401, UE send NAS signaling Service Request to eNodeB, ask to recover to eat dishes without rice or wine the side carrying.
S402, eNodeB are transmitted to MME with the NAS signaling that UE sends, and NAS signaling authentication process may be performed; MME perception UE state-transition is an activated state.
S403, MME send context to eNodeB and set up request message, and this step is set up bearer context in eNodeB, and activate the S1 carrying.
S404, eNodeB initiate the process that radio bearer is set up, and the wireless side carrying is resumed.
S405, data uplink link are got through.
S406, eNodeB respond initial context and finish message, and its user's face address and TEID are notified to MME.
S407, MME are to S-GW starting update load bearing message, the user's face address and the TEID of eNodeB feedback are notified to S-GW, enabled under the situation of saving signaling at network and user, MME carries user's access style RAT in this message, and this moment, the downlink data link was got through.Wherein, the current access style of user can also can obtain from the interface type that the user inserts from the local information acquisition of preserving of MME.
Wherein, MME can obtain the current access style of user and preserve in attachment flow, location area updating flow process, switching flow, also can obtain from other flow processs, does not limit at this.
S408, under the situation of having enabled saving signaling mechanism, the current access style of user that S-GW parses from the message that MME sends, and it is preserved with S-GW compare about this user's access style, if both differences are then by the current RAT that adopts of Update Bearer Request (bearer update request message) message informing P-GW user.
If s409 P-GW does not have the pairing PCC rule of the current RAT of user, then by obtaining alternately with PCRF; If corresponding PCC rule is arranged among the P-GW, then specify this PCC rule to use for user's carrying.
S410, P-GW return bearer update response Update Bearer Response (bearer update response message) to S-GW.
S411, S-GW return the bearer update response to MME.
This flow process has increased optional step s408～s410 on the basis of existing procedure, adopted Update Bearer Request (bearer update request message) and Update BearerResponse (bearer update response message) to notify P-GW user the current RAT that adopts at step s408 and step s410.After P-GW receives the RAT parameter, can guarantee that PCC rule and current RAT are consistent, thereby guarantee that business carries out smoothly.Certainly, the current RAT of S-GW notice P-GW user also can not adopt bearer update message, and adopt independent message, as PCC rule Update Request (request of PCC Policy Updates) and PCC ruleUpdate Response (response of PCC Policy Updates).
Need to prove, in the present embodiment, change, just can notify P-GW user the current RAT that adopts if S-GW finds the access style that the active user adopted, and execution in step s409～s410; In step s409,, just can obtain the PCC rule that responds alternately with PCRF if there is not the pairing PCC rule of current access style among the P-GW.
In the method that present embodiment provides, by the current access style of MME notice S-GW user, S-GW will compare from current access style of the user that MME receives and its local user's who preserves access style, and whether decision notifies P-GW to upgrade the PCC rule.In addition, present embodiment can carry out following variation: in step s408, S-GW parses the current access style of user from the bearer update message of MME after, do not carry out the comparison whether user access type changes, directly send the current access style of message informing P-GW user, thereby realize the renewal of PCC rule to P-GW.
In the embodiments of the invention two, it is example that the message parse that sends according to SGSN with the S-GW that is arranged in the 3G network framework goes out the current access style of user, and a kind of PCC rule update method in the embodiment of the invention is described.
Client-initiated Service Request flow chart under the 3G framework as shown in Figure 5, may further comprise the steps:
S501, RNC check whether RRC connects, if RRC does not connect, need set up RCC with UE and be connected.
S502, UE send NAS signaling Service Request to SGSN, ask to recover to eat dishes without rice or wine the side carrying, and SGSN perception UE state-transition is an activated state.
S503, SGSN send the RAB assignment request to RNC, and NAS signaling authentication process may be performed.
S504, RNC and user interactions are set up the radio bearer of eating dishes without rice or wine.
S505, RNC return RAB to SGSN and assign response message.
S506, SGSN judge that this user is current and whether have enabled saving signaling mechanism, if enabled, then by the current RAT that adopts of bearer update request message notice S-GW user.Wherein, the RAT that the active user adopts specifically can be that SGSN obtains from the interface type that the user inserts, and inserts SGSN as the user from the Iu interface, and then the current access style of user is 3G.The current access style of user also can obtain from the local access style of preserving about this UE of SGSN, perhaps obtains and report SGSN by other entities.Wherein, SGSN can obtain the current access style of user and preserve in attachment flow, location area updating flow process, switching flow, also can obtain from other flow processs, does not limit at this.
Here, no matter whether user's RAT changes, mechanism just reports to S-GW as long as the user has enabled saving signaling.
S507, under the situation of having enabled saving signaling, the current access style of user that S-GW parses from the message that SGSN sends, and it is preserved with S-GW compare about this user's access style, if both differences are then by the current RAT that adopts of Update Bearer Request (bearer update request message) message informing P-GW user.
If there is not the pairing PCC rule of the current RAT of user among the s508 P-GW, then by obtaining alternately with PCRF; If corresponding PCC rule is arranged among the P-GW, then specify this PCC rule to use for user's carrying.
S509, P-GW return the bearer update response to S-GW.
S510, S-GW return the bearer update response to SGSN.
S511, SGSN may initiate the PDP modification process.
S512, data uplink link are got through.
Certainly, in the present embodiment among step s507, the s509 the current RAT of S-GW notice P-GW user also can not adopt bearer update message, and adopt independent message, as PCC rule Update Request and PCC rule Update Response.
In the present embodiment, in step s506, SGSN judges whether the user has enabled saving signaling mechanism.If enabled, then notify S-GW user the current wireless access type RAT that adopts, promptly initiate flow process subsequently.
In the method that present embodiment provides, the current access style of SGSN notice S-GW user, S-GW will compare from current access style of the user that SGSN receives and its local user's who preserves access style, and whether decision notifies P-GW to upgrade the PCC rule.In addition, present embodiment can carry out following variation: in s507, S-GW parses the current access style of user from the bearer update message of SGSN after, do not carry out the comparison whether user access type changes, directly send the current access style of message informing P-GW user, thereby realize the renewal of PCC rule to P-GW.
In the embodiments of the invention three, the example that is designated so that the UE that is arranged in the 3G network framework carries the access style change illustrates a kind of PCC rule update method in the embodiment of the invention.
Concrete, Client-initiated Service Request flow process under the 3G framework as shown in Figure 6, may further comprise the steps:
Whether s601, RNC (Radio Network Controller, radio network controller) inspection RRC (RadioResource Control, Radio Resource control) connects, if RRC does not connect, needs foundation to be connected with the RCC of UE.
S602, UE send NAS signaling Service Request to SGSN, ask to recover to eat dishes without rice or wine the side carrying, and SGSN perception UE state-transition is an activated state.
Concrete, in this Service Request request message, carry RAT Change Indication (RAT changes indication) parameter, whether consistent with the local access style of preserving of UE when Service Request flow process takes place to SGSN indication UE.This parameter is what to be carried to network under the condition that has adopted saving signaling, otherwise need not informing network.
S603, SGSN send RAB (Radio Access Bearer, RAB) assignment request to RNC, and NAS signaling authentication process may be performed.
S604, RNC and user interactions are set up the radio bearer of eating dishes without rice or wine.
S605, RNC return RAB to SGSN and assign response message.
S606, SGSN judge the current saving signaling mechanism of whether having enabled of this user.If enabled, and RAT Change Indication parameter indication UE is inconsistent with the access style of the local preservation of UE when this flow process takes place, and then SGSN is by the current RAT that the user adopted of Update Bearer Request (bearer update request) message informing S-GW.Wherein, the RAT that the active user adopts specifically can be that SGSN obtains from the interface type that the user inserts, and inserts SGSN as the user from the Iu interface, and then the current access style of user is 3G.The current access style of user also can obtain from the local access style of preserving about this UE of SGSN, perhaps obtains and report SGSN by other entities.Wherein, SGSN can obtain the current access style of user and preserve in attachment flow, location area updating flow process, switching flow, also can obtain from other flow processs, does not limit at this.
S607, under the situation of having enabled saving signaling mechanism, the current access style of user that S-GW parses from the message that SGSN sends, and it is preserved with S-GW compare about this user's access style, if both differences are then by the current RAT that adopts of Update Bearer Request (bearer update request message) message informing P-GW user.
If there is not the pairing PCC rule of the current RAT of user among the s608 P-GW, then by obtaining alternately with PCRF; If corresponding PCC rule is arranged among the P-GW, then specify this PCC rule to use for user's carrying.
S609, P-GW return the bearer update response to S-GW.
S610, S-GW return the bearer update response to SGSN.
S611, SGSN may initiate the PDP modification process.
S612, data uplink link are got through.
Certainly, in the present embodiment among step s607, the s608 the current RAT of S-GW notice P-GW user also can not adopt bearer update message, and adopt independent message such as PCC rule Update Request and PCCrule Update Response.
Whether present embodiment requires UE to carry RAT Change Indication parameter in Service Request message, be used for to SGSN indication UE consistent with the local access style of preserving of UE when Service Request flow process takes place.Whether SGSN determines the needs access style notice S-GW that the user is current according to the indication of RAT Change Indication after receiving that RAB assigns response message.
In the present embodiment, S-GW will compare from the current access style of the user that SGSN receives and its local user's who preserves access style, and whether decision notifies P-GW to upgrade the PCC rule.In addition, present embodiment can carry out following variation: in s607, S-GW parses the current access style of user from the bearer update message of SGSN after, do not carry out the comparison whether user access type changes, directly send the current access style of message informing P-GW user, thereby realize the renewal of PCC rule to P-GW.
In the embodiments of the invention four, the example that is designated so that the UE that is arranged in the LTE network architecture carries the access style change illustrates a kind of PCC rule update method in the embodiment of the invention.
Concrete, Client-initiated Service Request flow process under the LTE/SAE framework as shown in Figure 7, may further comprise the steps:
S701, UE send NAS signaling Service Request to eNodeB, ask to recover to eat dishes without rice or wine the side carrying.In Service Request request message, carry RAT Change Indication parameter, be used for to MME indication UE whether consistent with the local access style of preserving of UE when Service Request flow process takes place.This parameter is what to be carried to network under the condition that has adopted saving signaling, otherwise need not informing network.
S702, eNodeB are transmitted to MME with the NAS signaling that UE sends, and NAS signaling authentication process may be performed; MME perception UE state-transition is an activated state.
S703, MME send context to eNodeB and set up request message, and this step is set up bearer context in eNodeB, and activate the S1 carrying.
S704, eNodeB initiate the process that radio bearer is set up, and the wireless side carrying is resumed.
S705, data uplink link are got through.
S706, eNodeB respond initial context and finish message, and its user's face address and TEID are notified to MME.
S707, MME give S-GW starting update load bearing message, and user's face address and TEID that eNodeB is fed back are notified to S-GW.Under the situation of having enabled saving signaling mechanism, if RAT ChangeIndication parameter indication UE is inconsistent with the local access style of preserving of UE when Service Request flow process takes place, then MME must carry the current access style of user in S-GW transmission bearer update message.The information acquisition that the current access style of user is preserved from MME this locality also can obtain from the interface type that the user inserts.
Wherein, MME can obtain the current access style of user and preserve in attachment flow, location area updating flow process, switching flow, also can obtain from other flow processs, does not limit at this.
S708, under the situation of having enabled saving signaling mechanism, the current access style of user that S-GW parses from the message that MME sends, and it is preserved with S-GW compare about this user's access style, if both differences are then by the current RAT that adopts of Update Bearer Request (bearer update request message) message informing P-GW user.
If there is not the pairing PCC rule of the current RAT of user among the s709 P-GW, then by obtaining alternately with PCRF; If corresponding PCC rule is arranged among the P-GW, then specify this PCC rule to use for user's carrying.
S710, P-GW return the bearer update response to S-GW.
S711, S-GW return the bearer update response to MME.
Certainly, the current RAT of notice P-GW user also can not adopt bearer update message, and adopts independent message, as PCC rule Update Request and PCC rule Update Response.
In the present embodiment, if change has taken place in the MME access style that the parsing active user is adopted from RAT Change Indication parameter, s707 step to S-GW send in the bearer update message must with on the current RAT of user.
In the method that present embodiment provides, S-GW will compare from the current access style of the user that MME receives and its local user's who preserves access style, and whether decision notifies P-GW to upgrade the PCC rule.In addition, present embodiment can also carry out following variation: in step s708, S-GW parses the current access style of user from the bearer update message of SGSN after, do not carry out the comparison whether user access type changes, directly send the current access style of message informing P-GW user, thereby realize the renewal of PCC rule to P-GW.
In the embodiments of the invention five, be example, a kind of PCC rule update method in the embodiment of the invention is described with the UE that is arranged in the 2G network architecture.At first, UE sends upstream message to SGSN, can be that data also can be signalings.After SGSN receives the upstream message of UE, then as shown in Figure 8, carry out following steps:
Step s801, SGSN judge that this user is current and whether have enabled saving signaling mechanism, if enabled, then by the current RAT that adopts of bearer update request message notice S-GW user.Wherein, the RAT that the active user adopts specifically can be that SGSN obtains from the interface type that the user inserts, and inserts SGSN as the user from Gb Interface, and then the current access style of user is 2G.The current access style of user also can obtain from the local access style of preserving about this UE of SGSN, perhaps obtains and report SGSN by other entities.Here, no matter whether user's RAT changes, mechanism just reports to S-GW as long as the user has enabled saving signaling.Wherein, SGSN can obtain the current access style of user and preserve in attachment flow, location area updating flow process, switching flow, also can obtain from other flow processs, does not limit at this.
Step s802, under the situation of having enabled saving signaling, the current access style of user that S-GW parses from the message that SGSN sends, and it is compared with the access style about this user preserved among the S-GW, if both differences are then by the current RAT that adopts of Update Bearer Request (bearer update request message) message informing P-GW user.
If there is not the pairing PCC rule of the current RAT of user among the step s803 P-GW, then by obtaining alternately with PCRF; If corresponding PCC rule is arranged among the P-GW, then specify this PCC rule to use for user's carrying.
Step s804, P-GW return the bearer update response to S-GW.
Step s805, S-GW return the bearer update response to SGSN.
Certainly, the current RAT of S-GW notice P-GW user also can not adopt bearer update message during step s802, s804 went on foot in the present embodiment flow process, and adopted independent message, as PCC rule UpdateRequest and PCC rule Update Response.
The method that present embodiment provides, the current access style of SGSN notice S-GW user, S-GW will compare from current access style of the user that SGSN receives and its local user's who preserves access style, and whether decision notifies P-GW to upgrade the PCC rule.In addition, present embodiment can carry out following variation: in s802, S-GW parses the current access style of user from the bearer update message of SGSN after, do not carry out the comparison whether user's access style changes, directly send the current access style of message informing P-GW user, thereby realize the renewal of PCC rule to P-GW.
The said method that the application of the invention provides, S-GW are after knowing the access style of user terminal, and the current access style of notice this user terminal of P-GW is that the user disposes suitable PCC rule by P-GW according to the current access style of user terminal.Thereby the PCC that has avoided being carried in technical disadvantages rule and the unmatched problem of current RAT, thereby the business that makes can be carried out smoothly.
Embodiments of the invention six also provide a kind of PCC Policy Updates system, be applied to enable in the network of saving signaling mechanism, as shown in Figure 9, comprise S-GW10, informing function entity 20 and P-GW30, wherein: S-GW 10 obtains the current access style generation of user terminal that informing function entity 20 sends, and phase P-GW30 sends the notification message carry the current access style of user terminal, and notice P-GW30 carries out PCC to be upgraded.
Concrete, S-GW 10 further comprises:
Access style acquiring unit 11 when being used to receive the message about user terminal, obtains the current access style of user terminal;
Updating message transmitting element 12 is used for sending the notification message that carries the current access style of user terminal that access style acquiring unit 11 obtains to P-GW 30, and notice P-GW 30 carries out PCC to be upgraded.
Access style judging unit 13, be used to judge whether the current access style of user terminal that access style acquiring unit 12 obtains is identical with the access style of local record, upgrade if then update notifications message sending unit 12 inequality is carried out PCC, otherwise stop the PCC Policy Updates.
Concrete, informing function entity 20 further comprises:
Access style acquiring unit 21 when being used to receive the request of the user terminal transmission of having enabled saving signaling mechanism, obtains the current access style of user terminal;
Access style notification unit 22 is used for the current access style notice S-GW 10 of described user terminal that terminal access style acquiring unit 21 is obtained.
Access style changes sign acquiring unit 23, when being used to receive the request of the user terminal transmission of having enabled saving signaling mechanism, obtains the variation sign of the user terminal access style that carries in the request;
Access style notice judging unit 24 when the access style variation sign indicating terminal access style that is used for obtaining when access style variation sign acquiring unit 23 changes, notifies access style notification unit 22 the access style notice S-GW 10 that user terminal is current; Otherwise do not carry out any processing.
Concrete, this informing function entity is specially: the MME in the LTE framework; Or the SGSN in the 2G/3G framework.
Embodiments of the invention six also provide a kind of terminal equipment, and the access style that is used for when LTE network or 2G/3G network have been enabled saving signaling mechanism changes reporting of sign, and its structure comprises as shown in figure 10
Terminal access style judging unit 91 is used for judging whether current access style is identical with the access style of local record when network side is initiated request, if difference then notify terminal access style notification unit, otherwise would not do not carry out any processing;
Terminal access style notification unit 92, when being used to receive the notice of terminal access style judging unit 92, change sign informing network side by access style: variation has taken place in the current access style of this terminal.The object that reports can be MME in the LTE network, can be SGSN in 3G network.
Said system that the application of the invention provides and equipment, S-GW are after knowing the access style of user terminal, and the current access style of notice this user terminal of P-GW is that the user disposes suitable PCC rule by P-GW according to the current access style of user terminal.Thereby the PCC that has avoided being carried in technical disadvantages rule and the unmatched problem of current RAT, thereby the business that makes can be carried out smoothly.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprises that some instructions are used so that an equipment is carried out the described method of each embodiment of the present invention.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims (13)

1, a kind of strategy and charging control PCC rule update method have been applied to enable in the network of saving signaling mechanism, it is characterized in that, may further comprise the steps:
When user terminal state becomes activated state, receive message about user terminal, obtain the current access style of described user terminal;
Send the notification message that carries the current access style of described user terminal to gateway device P-GW, notify described P-GW to carry out PCC and upgrade.
2, PCC rule update method according to claim 1 is characterized in that, describedly also comprises after obtaining the current access style of described user terminal:
Judge whether the current access style of described user terminal is identical with the access style of local record, if then continuation inequality.
3, PCC rule update method according to claim 1 is characterized in that described reception is obtained the current access style of described user terminal and is specially about the message of user terminal:
In Long Term Evolution net LTE framework, the message that receiving mobility management entity MME sends about described user terminal;
Resolve described message, obtain the current access style of described user terminal about user terminal;
Or
In 3G (Third Generation) Moblie 3G framework, receive the message that Serving GPRS Support Node SGSN sends about described user terminal;
Resolve described message, obtain the current access style of described user terminal about user terminal.
4, as PCC rule update method as described in the claim 3, it is characterized in that,
Also comprise before the message that described reception MME sends about described user terminal:
The access style that described MME receives user terminal changes sign, and when described access style changed access style that sign is designated as described user terminal and changes, described MME obtained the current access style of described user terminal and sends;
Also comprise before the message that described reception SGSN sends about described user terminal:
The access style that described SGSN receives user terminal changes sign, and when described access style changed access style that sign is designated as described user terminal and changes, described SGSN obtained the current access style of described user terminal and sends.
5, as PCC rule update method as described in the claim 2, it is characterized in that, described judge the current access style of described user terminal and local record about the access style of described terminal identical being specially whether:
According to the current access style of described user terminal that obtains, and the access style of the described user terminal of local record, judge whether the current access style of described user terminal is identical with the access style of local record.
6, PCC rule update method according to claim 1 is characterized in that, describedly sends the notification message that carries the current access style of user terminal to P-GW and is specially:
Send bearer update message or PCC Policy Updates message to described P-GW, notify the described user terminal of described P-GW current access style.
7, as PCC rule update method as described in claim 1 or 6, it is characterized in that, described to P-GW send carry the notification message of the current access style of user terminal after, also comprise:
The access style that described P-GW is current according to described user terminal obtains corresponding PCC rule from local or tactful and charging decision making function PCRF, uses for described user terminal.
8, a kind of gateway S-GW has been applied to enable in the network of saving signaling mechanism, it is characterized in that, comprising:
The access style acquiring unit is used for when user terminal state becomes activated state, receives the message about user terminal, obtains the current access style of described user terminal;
The updating message transmitting element is used for sending the notification message carry the current access style of user terminal that described access style acquiring unit obtains to P-GW, notifies described P-GW to carry out PCC and upgrades.
9, as S-GW as described in the claim 8, it is characterized in that, also comprise:
The access style judging unit is used to judge whether the current access style of user terminal that described access style acquiring unit obtains is identical with the access style of local record, if inequalityly then notify described updating message transmitting element to carry out PCC to upgrade.
10, a kind of informing function entity has been applied to enable in the network of saving signaling mechanism, it is characterized in that, comprising:
The access style acquiring unit when being used to receive the request of the user terminal transmission of having enabled saving signaling mechanism, obtains the current access style of described user terminal;
The access style notification unit is used for the current access style notice S-GW of described user terminal that described terminal access style acquiring unit is obtained.
11, as informing function entity as described in the claim 10, it is characterized in that, also comprise:
Access style changes the sign acquiring unit, when being used to receive the request of the user terminal transmission of having enabled saving signaling mechanism, obtains the variation sign of the user terminal access style that carries in the described request;
Access style notice judging unit is used for when the described access style that obtains changes the variation of sign indicating terminal access style, notifies described access style notification unit the access style notice S-GW that described user terminal is current.
12, as informing function entity as described in claim 10 or 11, it is characterized in that described informing function entity is specially:
MME in the LTE framework; Or the SGSN in the 2G/3G framework.
13, a kind of terminal equipment, the access style when being used to enable saving signaling mechanism reports, and it is characterized in that, comprising:
Terminal access style judging unit is used for system and switches the back when network side is initiated request, judges whether current access style is identical with the access style of local record;
Terminal access style notification unit is used for when terminal access style judgment unit judges access style is inequality, changes the current access style of the sign described terminal of informing network side by access style variation has taken place.
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WO2011032441A1 (en) * 2009-09-16 2011-03-24 中兴通讯股份有限公司 Method, apparatus and system for policy and charging control
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WO2011032441A1 (en) * 2009-09-16 2011-03-24 中兴通讯股份有限公司 Method, apparatus and system for policy and charging control
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