CN101646193B - Method, device, system and client for processing state information - Google Patents

Method, device, system and client for processing state information Download PDF

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Publication number
CN101646193B
CN101646193B CN2008101423559A CN200810142355A CN101646193B CN 101646193 B CN101646193 B CN 101646193B CN 2008101423559 A CN2008101423559 A CN 2008101423559A CN 200810142355 A CN200810142355 A CN 200810142355A CN 101646193 B CN101646193 B CN 101646193B
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pcrf
dra
state
information
pcrf1
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CN101646193A (en
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李岩
魏伟华
谭仕勇
时晓岩
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN2008101423559A priority Critical patent/CN101646193B/en
Priority to PCT/CN2009/072851 priority patent/WO2010015171A1/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
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1453—Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network
    • H04L12/1471—Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network splitting of costs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/57—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP for integrated multimedia messaging subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/64—On-line charging system [OCS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/70—Administration or customization aspects; Counter-checking correct charges
    • H04M15/745—Customizing according to wishes of subscriber, e.g. friends or family
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/81—Dynamic pricing, e.g. change of tariff during call
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/01—Details of billing arrangements
    • H04M2215/0108—Customization according to wishes of subscriber, e.g. customer preferences, friends and family, selecting services or billing options, Personal Communication Systems [PCS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/01—Details of billing arrangements
    • H04M2215/0112—Dynamic pricing, e.g. change of tariff during call
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20—Technology dependant metering
    • H04M2215/204—UMTS; GPRS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20—Technology dependant metering
    • H04M2215/208—IMS, i.e. Integrated Multimedia messaging Subsystem

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a method for processing state information, which comprises the following steps that: a Diameter routing agent DRA acquires that the state of a policy control and charging rule function entity PCRF is changed; and the DRA regulates a selection priority of the PCRF according to the state change of the PCRF. The embodiment of the invention also discloses a device, a system and a client for processing the state information. The method, the device, the system and the client can control the selection basis of each PCRF according to the state change condition of the PCRF and effectively select the PCRF for services.

Description

A kind of processing method of state information, device, system and client
Technical field
The present invention relates to the communications field, relate in particular to a kind of processing method, device, system and client of state information.
Background technology
The strategy and control (the Policy and Charging Control that charges in current enhancing; PCC) in the network architecture; Introduced the PCC process that a plurality of new functional entitys participate in network, this just requires, and a plurality of functional entitys need (Policy and Charging Rules Function PCRF) sets up session with policy control and charging regulation function entity; For the identical PCC session of same user, these functional entitys need carry out with same PCRF alternately simultaneously.In order to guarantee under a Diameter zone that has a plurality of PCRF; The PCC session service that same user is identical can be addressed to same PCRF through Diameter; Requirement has a PCRF selection functional entity; Therefore (Diameter Routing Agent DRA) realizes this function, can only have a DRA to handle discovery and the selection course that realizes PCRF in the inside, same Diameter territory simultaneously to have introduced Diameter route agent.
The inventor finds in research process, under the Diameter zone that has a plurality of PCRF, and the scheme of prior art, DRA does not also know the situation of change of the state information of each PCRF, the selection foundation of uncontrollable PCRF.
Summary of the invention
The embodiment of the invention provides a kind of processing method, device, system and client of state information, makes that DRA can be according to the selection foundation of PCRF state variation situation control PCRF.
The processing method of a kind of state information that the embodiment of the invention provided comprises:
The DRA of route agent is through knowing alternately that with Diameter client policy control and charging regulation function entity PCRF state change;
Said DRA adjusts the selection priority of said PCRF according to the state variation of said PCRF.
The processing unit of a kind of state information that the embodiment of the invention provided comprises:
Know the unit, through knowing alternately that with Diameter client policy control and charging regulation function entity PCRF state change;
Adjustment unit is used for adjusting according to the state variation of said PCRF the selection priority of said PCRF.
A kind of Diameter client that the embodiment of the invention provided comprises:
Receiving element is used to receive the policy control of the DRA of Diameter route agent transmission and the address information of charging regulation function entity PCRF.
Transmitting element is used in the time can't connecting with said PCRF the indication of sending said PCRF side network failure to DRA.
The treatment system of a kind of state information that the embodiment of the invention provided comprises:
The DRA of Diameter route agent is used for knowing alternately that with Diameter client policy control and charging regulation function entity PCRF state change, and adjust the selection priority of said PCRF according to the state variation of said PCRF;
Diameter client is used to notify the said PCRF state of said DRA to change.
The processing method of the state information that the embodiment of the invention provides, device, system and Diameter client; Knowing the PCRF state as the DRA of route agent changes; This DRA is according to the selection priority of this PCRF of state variation situation adjustment of PCRF; Thereby can be service selection PCRF effectively according to the selection foundation of each PCRF of PCRF state variation situation control.
Description of drawings
Fig. 1 is the exemplary process diagram of the processing method of state information in the one embodiment of the invention;
Fig. 2 is the flow chart of the processing method of state information in specific embodiment of the present invention;
Fig. 3 is the process flow figure of state information in another specific embodiment of the present invention;
Fig. 4 is the flow chart of the processing method of state information in another specific embodiment of the present invention;
Fig. 5 is the flow chart of the processing method of state information in another specific embodiment of the present invention;
Fig. 6 is the structural representation of the processing unit of state information in the embodiment of the invention;
Fig. 7 is the structural representation of Diameter client in the embodiment of the invention;
Fig. 8 is the structural representation of the treatment system of state information in the embodiment of the invention.
Embodiment
Introduce an application scenarios of the embodiment of the invention below earlier, the basic framework of the PCC network that promptly strengthens.This network architecture comprises:
Gateway: S-GW (Serving Gateway); This functional entity mainly is responsible for the mobility of process user; And use GTP (GPRS Tunnelling Protocol between the P-GW; GPRS Tunnel Protocol) or PMIP (Proxy Mobile IP Protocol, proxy mobile IP protocol) protocol interaction, use Dimater message to carry out alternately with PCRF through the Gxc interface.BBERF (Bearer Binding and EventReporting Function, bearing binding and event reporting function) can be positioned at the S-GW network entity, mainly carries out the Qos corresponding strategies.
Packet data service network is closed: P-GW (PDN Gateway); This functional entity mainly is responsible for and the exterior portions data network; Like the communication of Internet, and use GTP or PMIP protocol interaction between the S-GW, use Dimater message to carry out alternately through the Gx interface with PCRF.PCEF (Policy and ChargingEnforcement Function, strategy and charge execution function) can be positioned at the P-GW network entity.
Policy control and charging regulation function entity: PCRF; This functional entity is according to the decision corresponding strategy such as information, carrier policy, user contracting data and the current ongoing business information of user of user access network; And this strategy offered P-GW and/or BBERF, being carried out by these functional entitys should strategy.Strategy comprises the detection rule of business data flow, QoS that whether gate, business data flow are corresponding and based on the charging regulation of stream etc.
In addition; DRA entity in the embodiment of the invention specifically can be Redirectagent (redirect agent) entity or Proxy agent (Proxy agency) entity in the PCC framework; (Application Function AF) can be commonly referred to as Diameter client (Diameter Client) with visit ground V-PCRF for PCEF, BBERF, business function entity.
In order to be more readily understood the embodiment of the invention, set forth several terms again:
IP connection access network network: IP Connectivity Access Network, IP-CAN still can preserve the IP operation continuity when the user roams in access network, and the access network with such character is called IP-CAN;
The IP-CAN session: IP-CAN session, refer to the annexation between user and Packet Data Network (Packet DataNetwork, PDN is such as the internet) sign, this annexation is discerned through user's IP address and ID.As long as the user has distributed the IP address and can have been discerned by IP network, then IP-CAN exists.The IP-CAN session can comprise one or more IP-CAN and carry.
Session under the PCC frameworks such as IP-CAN session in addition,, Gx interface session, Gxc interface session can be commonly referred to as the PCC session again.
Referring to Fig. 1, Fig. 1 is the exemplary process diagram of the processing method of state information in the one embodiment of the invention.As shown in Figure 1, this flow process comprises the steps:
Step 101, DRA know that the state of PCRF changes.
When the one or more PCRF states under the Diameter zone that has a plurality of PCRF changed, DRA was known the state variation situation of this PCRF.Know that wherein PCRF state variation situation can be through following three kinds of any one realizations of method:
1, DRA is through knowing alternately that with Diameter client this PCRF state changes.
2, DRA through and this PCRF between testing mechanism detect this PCRF state and change.Wherein testing mechanism can (Transmission Control Protocol TCP) connects or heartbeat mechanism for: transmission control protocol.
3, (operation management, OM) mechanism knows that this PCRF state changes to DRA through Operation and Maintenance.
In addition, the state of PCRF changes two kinds of situation can be arranged at least in the embodiment of the invention: this PCRF side network breaks down or this PCRF side network recovers from fault.
Wherein, this PCRF side network breaks down and can comprise: this PCRF entity itself breaks down and/or to the link of this PCRF fault has taken place.Similarly, this PCRF side network recovers from fault and can comprise: this PCRF entity itself recovers from fault and/or recovers from fault to the link of this PCRF.
Step 102, DRA adjust the selection priority of this PCRF according to the state variation of this PCRF.
The different concrete two kinds of situation that are divided into of handling according to the state variation situation of PCRF:
If the state variation of 1 this PCRF breaks down for this PCRF side network, then DRA reduces the selection priority of this PCRF.
If the state variation of 2 these PCRF is recovered from fault for this PCRF side network, then DRA improves the selection priority of this PCRF.
Wherein, DRA reduces the selection priority of this PCRF and can comprise following mode: it is unavailable reducing that this PCRF selects priority parameters accordingly and/or said PCRF is set.Similarly, the DRA selection priority that improves said PCRF can comprise following mode at least one: the selection priority before the recovered failure, improve and select priority parameters or said PCRF is set and can use.
Further, consider and follow-uply may recover the preceding selection priority of PCRF fault, know the selection priority parameters before writing down this PCRF fault when this PCRF side network breaks down at DRA.
In addition, for the first method of knowing PCRF state variation situation, promptly DRA is through know the method that this PCRF state changes with Diameter client alternately.Under different PCRF state variation situation, processing mode is different, specifically describes as follows:
If changing, the state of 1 PCRF breaks down for this PCRF side network; Then DRA specifically can comprise through knowing alternately with Diameter client that this PCRF state changes: when Diameter client can't connect with this PCRF; This DRA receives the faulty indication that Diameter client sends, and this indication comprises the information of this PCRF; DRA is known PCRF side network failure according to this faulty indication.
The method for expressing of this faulty indication can have multiple, and a kind of possible method is AVP of redetermination, Error-Host AVP for example, the information (address information) of carrying fault PCRF.When Diameter client sends a request message, can this AVP be issued DRA, be used to represent the PCRF side network failure of being correlated with.
Further; If comprise session information in this faulty indication; After the selection priority reduction of DRA with this PCRF, can comprise: DRA reselects a PCRF according to the selection precedence information of this session information and PCRF, can the address information of this PCRF be sent to this Diameter client afterwards.
If changing, from fault, recovers for this PCRF side network the state of 2 PCRF; Promptly the original state of this PCRF side network is a fault; Then DRA specifically can comprise through knowing alternately with Diameter client that this PCRF state changes: DRA receives the PCRF addressing request that Diameter client sends, and wherein carries session information; This DRA selects this PCRF according to the selection precedence information of session information and PCRF, and this PCRF address information is issued Diameter client; If do not receive the indication of this PCRF side network failure of Diameter client transmission, then DRA confirms that this PCRF recovers from fault.
In the practical implementation process, can judge that in order to make DRA whether PCRF side network is fault before, can write down the malfunction of this PCRF when DRA finds the PCRF fault.In addition; In order to judge whether to receive the indication of this PCRF side network failure that Diameter client sends; If it is fault that DRA finds selected PCRF state recording, after sending to this PCRF address information of Diameter client, promptly start a timer; If still do not receive the indication of this PCRF side network failure of Diameter client transmission behind the timer expiry, DRA just thinks that this fault PCRF recovers from fault.Concrete implementation is more flexible, and the embodiment of the invention does not limit this.
Need to prove; Above-mentioned session information specifically can comprise following information at least one: UE in current IP-CAN session sign, PDN sign or IP address; Wherein the IP address can comprise again: address, local (ownership) (Home of address; HoA) and/or Care-of Address (Care-of Address, CoA).In addition, the selection precedence information of PCRF is a data record of each PCRF precedence information of reflection of DRA local maintenance, specifically can be one and store the tables of data that each PCRF selects priority parameters.The file layout of the selection precedence information of this PCRF, the embodiment of the invention is not done qualification.
Can see; Processing method through the state information that the foregoing description provided; Knowing the PCRF state as DRA changes; This DRA adjusts the selection priority of this PCRF according to the state variation situation of PCRF, thereby can be service selection PCRF effectively according to the selection foundation of each PCRF of PCRF state variation situation control.
As shown in Figure 2, be the flow chart of the processing method of state information in specific embodiment of the present invention.Present embodiment the 3rd generation gpp (Third Generation Partnership Project 3GPP) inserts under the non-roaming scene, and BBERF is positioned at S-GW, and PCEF is positioned at P-GW, and DRA adopts redirect agent scheme.BBERF needs and PCRF sets up session, at first sends a message to DRA inquiry PCRF; DRA issues BBERF with the address of the PCRF1 that selects; BBERF attempts and PCRF1 connects, and sends a request message to DRA after the failure once more, has the PCRF1 information of fault in the message; DRA reselects new PCRF2 and issues BBERF, and BBERF and the new PCRF2 that selects connect.Idiographic flow is following:
Step 201, BBERF send a request message to DRA, inquiry PCRF address.Have the PCC session information in the message, like the IP address of UE identification information and CoA.
Step 202, DRA receive this request message, according to present configuration information, select suitable PCRF1 like the selection precedence information of PCRF and the PCC session information of receiving, send response message to BBERF, wherein carry the PCRF1 address.
BBERF specifically can be issued through the Redirect-Host AVP in the response message in the PCRF1 address, and simultaneously, with the E bit set of response message, and Result-Code AVP is set to DIAMETER_REDIRECT_INDICATION.
The concrete realization of this step can be with reference to existing mechanism.
Step 203, BBERF attempt and PCRF1 connects; Discovery can't connect with PCRF1; So BBERF resends request message to DRA, carry faulty indication in the message, the address information that is about to the PCRF1 of fault sends to DRA through the Error-Host AVP in the message.
Step 204, DRA receive this request message; The selection priority parameters of fault PCRF1 is reduced; Then according to the PCC session information that has in the selection precedence information of PCRF and the message; Like the IP address of UE identification information and CoA, reselect PCRF2, and the address information of PCRF2 is sent to BBERF.
In this step, DRA can further write down the malfunction of PCRF1 and/or the selection priority parameters before the PCRF1 fault.
Step 205, BBERF and PCRF2 connect and accomplish the foundation of gateway control session.
Step 206, PCEF need and PCRF sets up the IP-CAN session, send a request message to DRA.Have session information in the message, like ID information, PDN information and IP address (CoA and HoA).
Step 207, DRA receive this request message; Do not belong to same session according to discovery of the session information in the message and PCC session before; Therefore select suitable PCRF1 according to the session information that has in the selection precedence information of PCRF and the message, the address information of PCRF1 is sent to PCEF through response message.
Further, because the state recording of PCRF1 is a malfunction, after sending to Diameter client PCRF1 address information, promptly start a timer.
Need to prove; Because step 204 reduces the selection priority parameters of PCRF1; Therefore follow-up DRA generally can preferentially select other PCRFs higher than PCRF1 priority when selecting PCRF; Here DRA choose again PCRF1 reason maybe for the PCRF of other high priorities at full capacity, can only selection mode be recorded as the PCRF1 of malfunction.
If step 208 DRA does not receive the indication of the PCRF1 side network failure of PCEF transmission, then DRA confirms that PCRF1 side network recovers from fault, and then DRA improves the selection priority of PCRF1.
Specifically can for, still do not receive the indication of the PCRF1 side network failure that PCEF sends behind the timer expiry, DRA just thinks that this fault PCRF1 recovers from fault, utilize the selection priority parameters before record in the step 204 recovers the PCRF1 fault.
Step 209, PCEF and PCRF1 connect and accomplish the foundation of IP-CAN session.
Need to prove that step 209 can be carried out at arbitrary steps after the step 207.
Can see; Insert under the non-roaming scene for 3GPP; Flow process through present embodiment DRA is passed through and Diameter client (like BBERF) know PCRF1 side network failure alternately; And the selection priority of reduction PCRF1, thereby can avoid DRA not know PCRF1 fault according to the selection foundation of PCRF state variation situation control for PCRF; When Diameter client sent a message to PCRF address of DRA request once more, DRA still can select the generation of situation of the PCRF1 of this fault.In addition; Because through and the mutual DRA of Diameter client (like PCEF) know that PCRF1 side network recovers from fault; And recovered the selection priority parameters before the fault of PCRF1 in time; Can avoid PCRF1 reality from fault, to recover, but DRA does not know that it has recovered and causes the generation of the idle situation of PCRF1.Make DRA can be service selection PCRF effectively.
As shown in Figure 3, be the process flow figure of state information in another specific embodiment of the present invention.Present embodiment is under the non-3GPP access roaming scene of trusting, and BBERF is positioned at A-GW (Access GW, IAD are positioned at visit ground), and PCEF is positioned at P-GW (P-GW is positioned at home domain), and DRA adopts redirect agent scheme.BBERF needs and PCRF sets up gateway control session, at first sends a message to the suitable V-PCRF of visit ground V-DRA inquiry; The V-PCRF request message of redispatching is selected the H-PCRF of ownership place to ownership place H-DRA, and like this, BBERF connects through V-PCRF and H-PCRF.
Step 301, BBERF send a request message to V-DRA, inquiry PCRF address.Carry the PCC session information in the message, like UE identification information and APN information.
Step 302, V-DRA receive this request message, according to present configuration information, select suitable V-PCRF like the selection precedence information of PCRF and the PCC session information of receiving, send response message to BBERF, wherein carry the V-PCRF address.
BBERF specifically can be issued through the Redirect-Host AVP in the response message in the V-PCRF address, and simultaneously, with the E bit set of response message, and Result-Code AVP is set to DIAMETER_REDIRECT_INDICATION.
Step 303, BBERF and V-PCRF connect, and initiate gateway control session and set up flow process.
Step 304, V-PCRF confirm and need gateway control session information be transmitted to H-PCRF, send a request message to H-DRA, carry the PCC session information in the message, like UE identification information and APN information.
Step 305, H-DRA receive this request message, according to present configuration information, select appropriate H-PCRF1 like the selection precedence information of PCRF and the PCC session information of receiving, send response message to V-PCRF, wherein carry the H-PCRF1 address.
BBERF specifically can be issued through the Redirect-Host AVP in the response message in the H-PCRF1 address, and simultaneously, with the E bit set of response message, and Result-Code AVP is set to DIAMETER_REDIRECT_INDICATION.
Step 306, V-PCRF attempt and H-PCRF1 connects; Discovery can't with the H-PCRF1 (not shown) that connects; So V-PCRF resends request message to H-DRA, the H-PCRF1 address of fault is sent to H-DRA through the Error-Host AVP in the message.
Step 307, H-DRA receive this request message; The selection priority of fault H-PCRF1 is reduced; According to the PCC session information that has in the selection precedence information of PCRF and the message, reselect H-PCRF2 like UE sign and APN information, and the H-PCRF2 address information is sent to V-PCRF then.
Step 308, V-PCRF are transmitted to H-PCRF2 with gateway control session information.
Step 309, H-PCRF2 send gateway control session and reply to V-PCRF, confirm gateway control session foundation.
Step 310, V-PCRF reply gateway control session and are transmitted to BBERF, confirm gateway control session foundation.
Step 311, BBERF send agent binding update messages and give PCEF, are used to set up the MIP tunnel.
Set up the IP-CAN session between step 312, PCEF needs and the PCRF, send a request message to H-DRA.Have session information in the message, like UE identification information and APN information.
Step 313, DRA receive this request message, are associated with same PCC session according to the session information in the message, send to PCEF for the address information of the H-PCRF2 of V-PCRF selection.
Step 314, PCEF and H-PCRF2 connect and accomplish the foundation of IP-CAN session.
Step 315, PCEF send the agent binding response message to BBERF.
Can see; Non-3GPP for trusting inserts under the non-roaming scene; Flow process through present embodiment DRA is passed through and Diameter client (like BBERF, V-PCRF or PCEF etc.) know H-PCRF1 side network failure alternately, and reduce the selection priority of H-PCRF1, thus can be according to the selection foundation of PCRF state variation situation control for PCRF; Be service selection PCRF effectively; Avoid DRA not know H-PCRF1 fault, when Diameter client sent a message to PCRF address of DRA request once more, DRA still can select the generation of situation of the H-PCRF1 of this fault.
As shown in Figure 4, be the flow chart of the processing method of state information in another specific embodiment of the present invention.In the present embodiment, between DRA and the PCRF1 and between DRA and the PCRF2 heartbeat mechanism is arranged all, DRA detects the PCRF1 fault through heartbeat mechanism, and PCRF1 priority is reduced; When DRA detects the priority that PCRF1 just often recovers PCRF1 again once more.Here the initial selected priority ratio PCRF2 that supposes PCRF1 is high.
Step 401, DRA detect PCRF1 side network failure through heartbeat mechanism.
Step 402, DRA reduce the selection priority of PCRF1.Here it is unavailable to be that PCRF1 is set to.
In this step, DRA can further write down the selection priority parameters before the PCRF1 fault.
Step 403, BBERF2 need inquire about the PCRF address, send a request message to DRA, carry session information in the message, like the UE identification information.
Step 404, DRA receive this request message, according to session information of receiving and configuration information, like the selection precedence information of PCRF, select the higher PCRF2 of priority, send response message to BBERF2, wherein carry the PCRF2 address.
BBERF specifically can be issued through Redirect-Host AVP in the response message in the address of PCRF2, and simultaneously, with the E bit set of response message, and Result-Code AVP is set to DIAMETER_REDIRECT_INDICATION.
Step 405, BBERF2 and PCRF2 connect and accomplish the foundation of gateway control session.
Step 406, DRA detect PCRF1 side network through heartbeat mechanism and have recovered normal.
Step 407, DRA recover the selection priority of PCRF1.
Particularly, can utilize the record in the step 402 to recover the preceding selection priority parameters of PCRF1 fault.
Step 408, BBERF1 need inquire about the PCRF address, send a request message to DRA, have session information in the message, like the UE identification information.
Step 409, DRA receive this request message, according to session information of receiving and configuration information, like the selection precedence information of PCRF, select the higher PCRF1 of priority, send response message to BBERF1, wherein carry the PCRF1 address.
BBERF specifically can be issued through Redirect-Host AVP in the response message in the address of PCRF1, and simultaneously, with the E bit set of response message, and Result-Code AVP is set to DIAMETER_REDIRECT_INDICATION.
Step 410, BBERF1 and PCRF1 connect and accomplish the foundation of gateway control session.
Can see; Flow process through present embodiment can make DRA know PCRF1 side network failure through heartbeat mechanism; And the selection priority of reduction PCRF1, thereby can avoid DRA not know PCRF1 fault according to the selection foundation of PCRF state variation situation control for PCRF; When Diameter client (like BBERF) sent a message to PCRF address of DRA request once more, DRA still can select the generation of situation of the PCRF1 of this fault.In addition; Know that through heartbeat mechanism DRA PCRF1 side network recovers from fault; And recovered the selection priority parameters before the fault of PCRF1 in time, can avoid PCRF1 reality from fault, to recover, but DRA does not know that it has recovered and causes the generation of the idle situation of PCRF1.Make DRA can be service selection PCRF effectively.
As shown in Figure 5, be the flow chart of the processing method of state information in another specific embodiment of the present invention.In the present embodiment, DRA detects the PCRF1 fault through OM, and PCRF1 priority is reduced; When DRA detects the priority that PCRF1 just often recovers PCRF1 again once more through OM.Here the initial selected priority ratio PCRF2 that supposes PCRF1 is high.
Step 501, OM detect PCRF1 side network failure, and notice DRA.
Step 502, DRA reduce the selection priority of PCRF1.
In this step, DRA can further write down the selection priority parameters before the PCRF1 fault.
Step 503, BBERF2 need inquire about the PCRF address, send a request message to DRA, carry session information in the message, like the UE identification information.
Step 504, DRA receive this request message, according to session information of receiving and configuration information, like the selection precedence information of PCRF, select the higher PCRF2 of priority, send response message to BBERF2, wherein carry the PCRF2 address.
BBERF specifically can be issued through Redirect-Host AVP in the response message in the address of PCRF2, and simultaneously, with the E bit set of response message, and Result-Code AVP is set to DIAMETER_REDIRECT_INDICATION.
Step 505, BBERF2 and PCRF2 connect and accomplish the foundation of gateway control session.
Step 506, OM detect PCRF1 side network and have recovered normally, notice DRA.
Step 507, DRA recover the selection priority of PCRF1.
Particularly, can utilize the record in the step 502 to recover the preceding selection priority parameters of PCRF1 fault.
Step 508, BBERF1 need inquire about the PCRF address, send a request message to DRA, are with session information in the message, like the UE identification information.
Step 509, DRA receive this request message, according to session information of receiving and configuration information, like the selection precedence information of PCRF, select the higher PCRF1 of priority, send response message to BBERF1, wherein carry the PCRF1 address.
BBERF specifically can be issued through Redirect-Host AVP in the response message in the address of PCRF1, and simultaneously, with the E bit set of response message, and Result-Code AVP is set to DIAMETER_REDIRECT_INDICATION.
Step 510, BBERF1 and PCRF1 connect and accomplish the foundation of gateway control session.
Can see; Flow process through present embodiment can make DRA know PCRF1 side network failure through OM mechanism; And the selection priority of reduction PCRF1, thereby can avoid DRA not know PCRF1 fault according to the selection foundation of PCRF state variation situation control for PCRF; When Diameter client (like BBERF) sent a message to PCRF address of DRA request once more, DRA still can select the generation of situation of the PCRF1 of this fault.In addition; DRA knows that PCRF1 side network recovers from fault through OM mechanism; And recovered the selection priority parameters before the fault of PCRF1 in time, can avoid PCRF1 reality from fault, to recover, but DRA does not know that it has recovered and causes the generation of the idle situation of PCRF1.Make DRA can be service selection PCRF effectively.
More than detailed introduction the embodiment of processing method of state information of the present invention; Introduce the Apparatus and system embodiment in the embodiment of the invention below; Various processing means in the above method and to the detailed description of characteristic are all applicable to processing unit, system and the Diameter client of the state information of following introduction.
See also Fig. 6, be the structural representation of the processing unit of state information in the embodiment of the invention.This device can comprise:
Know unit 601, be used to know that policy control and charging regulation function entity PCRF state change;
Adjustment unit 602 is used for the selection priority according to this PCRF of state variation adjustment of this PCRF.
Wherein, know unit 601 can comprise interactive unit 6011, detecting unit 6012, maintenance unit 6013 at least one:
Interactive unit 6011 is used for through knowing alternately that with Diameter client this PCRF state changes;
Detecting unit 6012, be used for through and this PCRF between testing mechanism detect this PCRF state and change;
Maintenance unit 6013 is used for knowing that through Operation and Maintenance OM mechanism this PCRF state changes.
Adjustment unit 602 can comprise first adjustment unit 6021, second adjustment unit 6022 at least one:
First adjustment unit 6021 is used for when the PCRF state changes to this PCRF side network failure, with the selection priority reduction of this PCRF;
Second adjustment unit 6022, be used for the PCRF state change for this PCRF side network when fault is recovered, improve the selection priority of this PCRF.
The processing unit of this state information specifically can be Diameter route agent.
See also Fig. 7, be the structural representation of Diameter client in the embodiment of the invention.This client can comprise:
Receiving element 701 is used to receive the policy control of the DRA of Diameter route agent transmission and the address information of charging regulation function entity PCRF.
Transmitting element 702 is used in the time can't connecting with this PCRF, sends the indication of this PCRF side network failure to DRA.
See also Fig. 8, be the structural representation of the treatment system of state information in the embodiment of the invention.This system can comprise:
The DRA801 of Diameter route agent is used for knowing alternately that with Diameter client policy control and charging regulation function entity PCRF state change, and adjusts the selection priority of this PCRF according to the state variation of PCRF;
Diameter client 802 is used to notify this PCRF state of DRA to change.
Processing method, device, system and the Diameter client of the state information that provides through the above embodiment of the present invention; Can make DRA through knowing certain PCRF side network failure with mutual, the testing mechanism or the OM mechanism of Diameter client; And reduce the selection priority of this PCRF; Thereby can be according to the selection foundation of PCRF state variation situation control for PCRF; Avoid DRA not know this PCRF fault, when Diameter client sent a message to PCRF address of DRA request once more, DRA still can select the generation of situation of the PCRF of this fault.In addition; DRA is through knowing that with mutual, the testing mechanism or the OM mechanism of Diameter client this PCRF side network recovers from fault; And in time recover the selection priority parameters before this PCRF fault; Can avoid this PCRF reality from fault, to recover, but DRA does not know that it has recovered and causes the generation of the idle situation of this PCRF.Make DRA can be service selection PCRF effectively.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program, described program can be stored in a kind of computer-readable recording medium.The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims (10)

1. the processing method of a state information is characterized in that, this method comprises:
The DRA of Diameter route agent is through knowing alternately that with Diameter client policy control and charging regulation function entity PCRF state change;
Said DRA adjusts the selection priority of said PCRF according to the state variation of said PCRF.
2. the method for claim 1 is characterized in that, said PCRF state changes and comprises: said PCRF side network failure;
The selection priority that said DRA adjusts said PCRF according to the state variation of said PCRF comprises: said DRA reduces the selection priority of said PCRF.
3. method as claimed in claim 2 is characterized in that, said DRA comprises through knowing alternately with Diameter client that the PCRF state changes:
When Diameter client can't connect with said PCRF, said DRA received the faulty indication that said Diameter client sends, and said indication comprises the information of said PCRF;
Said DRA is known said PCRF side network failure according to said faulty indication.
4. method as claimed in claim 3 is characterized in that said indication comprises session information; Further comprise after the selection priority reduction of said DRA with said PCRF:
Said DRA reselects PCRF according to the selection precedence information of session information and PCRF.
5. the method for claim 1 is characterized in that, said PCRF state changes and comprises: said PCRF side network recovers from fault;
The selection priority that said DRA adjusts said PCRF according to the state variation of said PCRF comprises: said DRA improves the selection priority of said PCRF.
6. method as claimed in claim 5 is characterized in that, said DRA comprises through knowing alternately with Diameter client that the PCRF state changes:
Said DRA receives the PCRF addressing request that Diameter client sends, and carries session information in the described request;
Said DRA selects said PCRF according to the selection precedence information of said session information and PCRF, and said PCRF address information is issued Diameter client;
If do not receive the indication of the said PCRF side network failure of Diameter client transmission, then said DRA confirms that said PCRF recovers from fault.
7. the processing unit of a state information is characterized in that, this device comprises:
Know the unit, through knowing alternately that with Diameter client policy control and charging regulation function entity PCRF state change;
Adjustment unit is used for adjusting according to the state variation of said PCRF the selection priority of said PCRF.
8. device as claimed in claim 7 is characterized in that, said adjustment unit comprise with lower unit at least one:
First adjustment unit is used for when said PCRF state changes to said PCRF side network failure, and the selection priority of said PCRF is reduced;
Second adjustment unit, be used for said PCRF state change for said PCRF side network when fault is recovered, improve the selection priority of said PCRF.
9. a Diameter client is characterized in that, said Diameter client comprises:
Receiving element is used to receive the policy control of the DRA of Diameter route agent transmission and the address information of charging regulation function entity PCRF;
Transmitting element is used in the time can't connecting with said PCRF the indication of sending said PCRF side network failure to DRA.
10. the treatment system of a state information is characterized in that, this system comprises:
The DRA of Diameter route agent is used for knowing alternately that with Diameter client policy control and charging regulation function entity PCRF state change, and adjust the selection priority of said PCRF according to the state variation of said PCRF;
Diameter client is used to notify the said PCRF state of said DRA to change.
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