CN105050072A - Session binding method and network system - Google Patents
Session binding method and network system Download PDFInfo
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- CN105050072A CN105050072A CN201510519018.7A CN201510519018A CN105050072A CN 105050072 A CN105050072 A CN 105050072A CN 201510519018 A CN201510519018 A CN 201510519018A CN 105050072 A CN105050072 A CN 105050072A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- 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
Abstract
The invention discloses a session binding method and a network system in an embodiment and relates to the technical field of communications. The session binding method is capable of realizing the binding of DRA2 and DRA1 to the same PCRF. The method of the embodiment comprises the following steps: the first DRA receives a response message sent by the PCRF, wherein the response message carries PCRF binding information; the first DRA obtains the PCRF binding information and stores the PCRF binding information in a first database; the first DRA sends a data synchronization request message to the second DRA via a data transmission channel, wherein the data synchronization request carries the PCRF binding information; and the second DRA saves the PCRF binding information so that the second DRA can be bound to the PCRF according to the PCRF binding information. The session binding method is suitable for a network system.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method and network system of binding session.
Background technology
Along with the development of the communication technology, in order to improve the accuracy rate of addressing, usually by the PCC (PolicyandChargingControl of same user on distinct interface, strategy controls with charging) binding session is to same PCRF (PolicyandChargingRulesFunction, "Policy and Charging Rules Function entity).Wherein, PCC session can realize control to business, charging.At present, the PCC binding session of a kind of same user on distinct interface is as follows to the method for same PCRF:
As PCEF (PolicyandChargingEnforcementFunction, strategy and charging execution function entity) to DRA (DiameterRoutingAgent, route agent's node) 1 send carry IMSI (InternationalMobileSubscriberIdentificationNumber, international mobile subscriber identity) and User IP (InternetProtocol, Internet protocol) the Gx interface message of address time, the IMSI that DRA1 sends according to PCEF, the IP address of user, and the corresponding relation of IMSI and the PCRF that DRA1 prestores, determine PCRF, and by IMSI, the IP address of user and the corresponding relation of PCRF are stored in the storage area of DRA1, IMSI and the IP address of user, the corresponding relation of PCRF by the privately owned interface between DRA1 and DRA2, are synchronized to DRA2 by DRA1, as AF (ApplicationFunction, Application Function) to DRA2 initiate Rx interface message time, the IP address of the user that DRA2 carries according to Rx interface message, and IMSI, the IP address of user and the corresponding relation of PCRF, determine PCRF, thus make DRA1 and DRA2 be tied to same PCRF, namely the PCC binding session of same user on Gx and Rx interface is to same PCRF.
But, when DRA1 and DRA2 belongs to different manufacturers, cannot be communicated by privately owned interface between DRA1 and DRA2, namely the IP address of IMSI, user and the corresponding relation of PCRF cannot be sent to DRA2 by privately owned interface by DRA1, make DRA2 cannot according to Rx interface message, and IMSI, the IP address of user and the corresponding relation of PCRF determine the PCRF that DRA1 binds, and cause PCC session cannot be tied to same PCRF, thus DRA2 and DRA1 cannot be realized be tied to one PCRF.
Summary of the invention
The embodiment of the present invention provides a kind of method and network system of binding session, can realize DRA2 and DRA1 and be tied to one PCRF.
For achieving the above object, the embodiment of the present invention adopts following technical scheme:
First aspect, the embodiment of the present invention provides a kind of method of binding session, described method is used for network system, described network system is provided with the first via by agent node DRA, the 2nd DRA and "Policy and Charging Rules Function entity PCRF, a described DRA is provided with the first database, described first database is for storing PCRF binding information, and described method comprises:
A described DRA receives the response message that described PCRF sends, and described response message carries described PCRF binding information;
A described DRA obtains described PCRF binding information, and is stored in described first database;
A described DRA sends data synchronization request message by data transmission channel to described 2nd DRA, and described data synchronization request message carries described PCRF binding information;
Described 2nd DRA preserves described PCRF binding information, so that described 2nd DRA is tied to described PCRF according to described PCRF binding information.
Second aspect, the embodiment of the present invention provides a kind of network system, described network system is provided with the first via by agent node DRA, the 2nd DRA and "Policy and Charging Rules Function entity PCRF, a described DRA is provided with the first database, described first database is for storing PCRF binding information, a described DRA, for receiving the response message that described PCRF sends, described response message carries described PCRF binding information;
A described DRA, also for obtaining described PCRF binding information, and is stored in described first database;
A described DRA, also for sending data synchronization request message by data transmission channel to described 2nd DRA, described data synchronization request message carries described PCRF binding information;
Described 2nd DRA, for preserving described PCRF binding information, so that described 2nd DRA is tied to described PCRF according to described PCRF binding information.
The method of a kind of binding session that the embodiment of the present invention provides and network system, one DRA receives the response message carrying PCRF binding information that PCRF sends, and PCRF binding information is stored in first database of a DRA, sent the data synchronization request message carrying PCRF binding information afterwards to the 2nd DRA by data transmission channel, the 2nd DRA preserves PCRF binding information.Be compared in prior art belong to same producer DRA1 and DRA2 by privately owned interface synchronization IMSI, the IP address of user and the corresponding relation of PCRF, make DRA2 according to Rx interface message, and IMSI, the IP address of user and the corresponding relation of PCRF determine the PCRF that DRA1 binds, and DRA2 is tied to same PCRF, the embodiment of the present invention can by arranging the first database at a DRA, PCRF binding information is stored in the first database, and sent to the 2nd DRA by data transmission channel, guarantee that the 2nd DRA can get the PCRF binding information of a DRA transmission, so that the 2nd DRA is tied to PCRF according to PCRF binding information, avoid because DRA2 and DRA1 belongs to different manufacturers, make the IMSI that DRA2 possibility None-identified DRA1 is sent by privately owned interface, the IP address of user and the corresponding relation of PCRF and cause DRA2 successfully cannot bind PCRF.Therefore, ensure that and be tied to the PCRF binding information that DRA2 can send according to DRA1 the PCRF that DRA1 binds, thus realize DRA2 and DRA1 and be tied to one PCRF.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The method interaction figure of a kind of binding session that Fig. 1 provides for the embodiment of the present invention;
The method interaction figure of the another kind of binding session that Fig. 2 provides for the embodiment of the present invention;
The method interaction figure of the another kind of binding session that Fig. 3 provides for the embodiment of the present invention;
The method interaction figure of the another kind of binding session that Fig. 4 provides for the embodiment of the present invention;
The method interaction figure of the another kind of binding session that Fig. 5 provides for the embodiment of the present invention;
The method interaction figure of the another kind of binding session that Fig. 6 provides for the embodiment of the present invention;
Data syn-chronization interaction figure in a kind of PCC conversation establishing process that Fig. 7 provides for the embodiment of the present invention;
Data syn-chronization interaction figure in a kind of PCC session updates process that Fig. 8 provides for the embodiment of the present invention;
Data syn-chronization interaction figure in a kind of PCC session termination process that Fig. 9 provides for the embodiment of the present invention;
The structural representation of a kind of network system that Figure 10 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention may be used for a kind of network system, and network system is provided with a DRA, the 2nd DRA, PCRF and PCEF.Wherein, PCEF and PCRF can be communicated by Gx interface, and a DRA is provided with the first database, and the 2nd DRA is provided with the second database, and the first database and the second database are all for storing PCRF binding information.In embodiments of the present invention, network system can also be provided with AF, and AF and PCRF can be communicated by Rx interface.In IMS (IPMultimediaSubsystem, IP Multimedia System), AF can be P-CSCF (Proxy-CallSessionControlFuntion, proxy call conversation control function entity).
The embodiment of the present invention provides a kind of method of binding session, and as shown in Figure 1, the method is performed by a DRA and the 2nd DRA, and the method comprises:
101, a DRA receives the response message that PCRF sends.
Wherein, response message carries PCRF binding information.
PCEF can send CCR-I (CreditControlRequest-Initial to a DRA, diameter credit control request to create) message, by a DRA, CCR-I message is sent to PCPF afterwards, when PCRF receives the CCR-I message of a DRA transmission, PCRF sends the response message carrying PCRF binding information to a DRA, i.e. CCA-I (CreditControlAnswer-Initial, diameter credit control creates response) message; Or, PCEF can send CCR-U (CreditControlRequest-Update to a DRA, diameter credit control update request) message, by a DRA, CCR-U message is sent to PCPF afterwards, when PCRF receives the CCR-U message of a DRA transmission, PCRF sends the response message carrying PCRF binding information to a DRA, i.e. CCA-U (CreditControlAnswer-Update, diameter credit control upgrades response) message; Or, PCEF can send CCR-T (CreditControlRequest-Termination to a DRA, diameter credit control stops request) message, by a DRA, CCR-T message is sent to PCPF afterwards, when PCRF receives the CCR-T message of a DRA transmission, PCRF sends the response message carrying PCRF binding information to a DRA, i.e. CCA-T (CreditControlAnswer-Termination, diameter credit control stops response) message.
102, a DRA obtains PCRF binding information, and is stored in the first database.
In embodiments of the present invention, PCRF binding information can be stored in the first database by the form of form by the one DRA, as shown in Table 1, PCRF binding information specifically can comprise: session identification (SessionID), IMSI (InternationalMobileSubscriberIdentificationNumber, mobile identification number), MSISDN (MobileStationISDN, the integrated services digital network numbering of mobile subscriber), the IP address (IPAddress) of user, APN (AccessPointName, APN), PCRF Hostname (PCRFHost) and PCEF Hostname (PCEFHost).
Table one
| Parameter | Describe |
| Session ID | The Gx interface session that identifying user is current |
| IMSI | The international mobile subscriber identity of identifying user |
| MSISDN | The Mobile Directory Number of identifying user |
| IP Address | The IP address that identifying user current sessions uses |
| APN | The APN of identifying user current sessions |
| PCRF Host | The PCRF Hostname of identifying user current sessions binding |
| PCEF Host | The PCEF Hostname of identifying user current sessions |
It should be noted that, SessionID may be used for identifying different session information, and session represents a connection between user and external packet data networks.According to the difference of PCC interface, PCC session identification can comprise: Gx interface session mark and Rx interface session identification, and in embodiments of the present invention, session identification refers in particular to Gx interface session mark.
IMSI is international mobile subscriber identity, is that the longest figure place is 15 for uniquely identifying the number of a mobile subscriber in 2G/3G/4G mobile communications network.IMSI form adopts E.212 coded system, by MCC (MobileCountryCode, Mobile Country Code MCC), MNC (MobileNetworkCode, mobile network code) and MSIN (MobileSubscriberIdentificationNumber, identification number of mobile subscriber) composition.Wherein, MMC is made up of 3 numerals, for uniquely identifying the country belonging to mobile subscriber, such as: the MMC of China is 460; MNC for identifying the mobile network that mobile subscriber belongs to, such as: the mobile network No. of CHINAUNICOM has 01,06,09 and 10; MSIN is used for unique mobile subscriber identified in domestic CHINAUNICOM 2G/3G/4G mobile network, adopts 10.
MSISDN is the isdn number of mobile subscriber, ISDN (IntegratedServiceDigitalNetwork, integrated services digital network) refer to calling subscriber the number dialled by calling 2G/3G/4G mobile subscriber, be the telephone number of mobile subscriber's external disclosure, position is long is no more than 15.MSISDN form adopts E.164 coded system, by CC (CountryCode, national code), NDC (NationalDestinationCode, domestic object coding) and SN (SubscriberNumber, client's number) composition.Wherein, the CC of China is 86; NDC is network insertion number, forms, i.e. N1N2N3 by 3, such as: the NDC number of the existing 2G/3G/4G of the may be used for user of CHINAUNICOM is 130,131,132,156,155,145 and 186; SN forms by 8, and namely H0H1H2H3ABCD, H0H1H2H3 correspond to the identification code of carrier subscriber database, are distributed unitedly, for unique identification carrier subscriber database equipment by operator; ABCD is sequence number, is distributed by carrier subscriber database.
IPAddress is when mobile subscriber uses Packet data service, the IP address that mobile network distributes for user, for the access of Packet data service.Wherein, according to the difference using address style, the IP address of user can be divided into the IPv4 address of user, the IPv6 address of user and the IPv4v6 address of user.
In 2G/3G/4G mobile packet network, APN is for representing the outer data network that user uses Packet data service to connect.Wherein, APN is made up of network identity and operator identifier two parts.Network identity defines the external network that user connects, such as: uninet or 3gnet; Network operator identifies the 2G/3G/4G mobile network defined residing for user, such as: a typical network operator of CHINAUNICOM's network is designated apn.epc.mnc001.mcc460.3gppnetwork.org.Therefore, a complete APN example can be uninet.apn.epc.mnc001.mcc460.3gppnetwork.org.
In embodiments of the present invention, PCRF Hostname can be pcrf (numbering) .< city abbreviation >. [province abbreviation] .pcrf.epc.mnc<MNC>.mccLEssT.L TssT.LTMCC>.3gppnetwork.org; PCEF Hostname can be pcrf (numbering) .< city abbreviation >. [province abbreviation] .pcef.epc.mnc<MNC>.mccLEssT.L TssT.LTMCC>.3gppnetwork.org.Such as: Beijing PCRF Hostname can called after: pcrf01.bj.bj.pcrf.epc.mnc001.mcc460.3gppnetwork.org.
For user A, the MSISDN of user A, namely cell-phone number is 8618601101234, IMSI is 460011100612345, the IP address that user's current sessions uses is 172.16.11.123, the APN of access is uninet.apn.epc.mnc001.mcc460.3gppnetwork.org, SessionID is session-id-01, the PCRF Hostname of binding is pcrf02.bj.bj.pcrf.epc.mnc001.mcc460.3gppnetwork.org, the PCEF Hostname of access is pcef01.bj.bj.pcef.epc.mnc001.mcc460.3gppnetwork.org, the PCRF binding information that then this user's current sessions is corresponding in the first database as shown in Table 2.
Table two
| Parameter | User A |
| Session ID | session-id-01 |
| IMSI | 460011100612345 |
| MSISDN | 8618601101234 |
| IP Address | 172.16.11.123 |
| APN | uninet.apn.epc.mnc001.mcc460.3gppnetwork.org |
| PCRF Host | pcrf02.bj.bj.pcrf.epc.mnc001.mcc460.3gppnetwork.org |
| PCEF Host | pcef01.bj.bj.pcef.epc.mnc001.mcc460.3gppnetwork.org |
103, a DRA sends data synchronization request message by data transmission channel to the 2nd DRA.
Wherein, data synchronization request message carries PCRF binding information.
In embodiments of the present invention, it can be DSR-I (DataSynchronizationRequest-Initial that one DRA sends data synchronization request message by data transmission channel to the 2nd DRA, DRA data syn-chronization request to create) message, DSR-U (DataSynchronizationRequest-Update, the request of DRA data synchronization updating) message, or DSR-T (DataSynchronizationRequest-Termination, DRA data syn-chronization stops request) message.Wherein, the PCRF binding information that DSR-I message, DSR-U message and DSR-T message are carried is also incomplete same, and the content of the PCRF binding information that DSR-I message, DSR-U message and DSR-T message are carried respectively can propose later.
104, the 2nd DRA preserves PCRF binding information, so that the 2nd DRA is tied to PCRF according to PCRF binding information.
2nd DRA can determine the PCRF of a DRA binding according to the PCRFHost carried in PCRF binding information, and be tied to this PCRF, to realize a DRA and the 2nd DRA is tied to one PCRF.
The embodiment of the present invention provides a kind of method of binding session, one DRA receives the response message carrying PCRF binding information that PCRF sends, and PCRF binding information is stored in first database of a DRA, sent the data synchronization request message carrying PCRF binding information afterwards to the 2nd DRA by data transmission channel, the 2nd DRA preserves PCRF binding information.Be compared in prior art belong to same producer DRA1 and DRA2 by privately owned interface synchronization IMSI, the IP address of user and the corresponding relation of PCRF, make DRA2 according to Rx interface message, and IMSI, the IP address of user and the corresponding relation of PCRF determine the PCRF that DRA1 binds, and DRA2 is tied to same PCRF, the embodiment of the present invention can by arranging the first database at a DRA, PCRF binding information is stored in the first database, and sent to the 2nd DRA by data transmission channel, guarantee that the 2nd DRA can get the PCRF binding information of a DRA transmission, so that the 2nd DRA is tied to PCRF according to PCRF binding information, avoid because DRA2 and DRA1 belongs to different manufacturers, make the IMSI that DRA2 possibility None-identified DRA1 is sent by privately owned interface, the IP address of user and the corresponding relation of PCRF and cause DRA2 successfully cannot bind PCRF.Therefore, ensure that and be tied to the PCRF binding information that DRA2 can send according to DRA1 the PCRF that DRA1 binds, thus realize DRA2 and DRA1 and be tied to one PCRF.
In order to ensure that a DRA sends data synchronization request message accurately by data transmission channel to the 2nd DRA, one DRA needs before transmission synchronization request message, the type of the response message received is judged, and according to the type of different response message, send the data synchronization request message of different content.Therefore, in an implementation of the embodiment of the present invention, on the basis of implementation as shown in Figure 1, before execution step 103 the one DRA sends data synchronization request message by data transmission channel to the 2nd DRA, can also perform step 105, and step 103 can be implemented as step 1031 as shown in Figure 2 or step 1032 as shown in Figure 3:
105, a DRA is according to response message, determines the type of response message.
Wherein, the type of response message comprises: conversation establishing response message, session updates response message or session termination response message.
In embodiments of the present invention, when response message is CCA-I message, then the type of response message is conversation establishing response message; When response message is CCA-U message, then the type of response message is session updates response message; When response message is CCA-T message, then the type of response message is session termination response message.
1031, when the type of response message be conversation establishing response message or session updates response message time, a DRA sends data synchronization request message by data transmission channel to the 2nd DRA.
Wherein, data synchronization request message carries message identification, type of message, session identification, IMSI, MSISDN, the IP address of user, APN, PCRF Hostname and PCEF Hostname.
By step 105, when the type of the message that meets with a response is conversation establishing response message, a DRA sends DSR-I message to the 2nd DRA; When the type of the message that meets with a response is session updates response message, a DRA sends DSR-U message to the 2nd DRA.It should be noted that, DSR-I message and DSR-U message all carry message identification, type of message, session identification, IMSI, MSISDN, the IP address of user, APN, PCRF Hostname and PCEF Hostname.As shown in Table 3, the information entrained by DSR-I message; As shown in Table 4, the information entrained by DSR-U message.
Table three
Table four
1032, when the type of response message is session termination response message, a DRA sends message identification, type of message and session identification by data transmission channel to the 2nd DRA.
By step 105, when the type of the message that meets with a response is session termination response message, a DRA sends DSR-T message to the 2nd DRA.It should be noted that, DSR-T message carries message identification, type of message and session identification.As shown in Table 5, the information entrained by DSR-T message.
Table five
The method of a kind of binding session that the embodiment of the present invention provides, a DRA by data transmission channel to the 2nd DRA send carry the data synchronization request message of PCRF binding information before, need to judge the type of the response message that PCRF sends, and according to the type of different response message, send the data synchronization request message of different content to the 2nd DRA.Be compared in prior art the IP address of DRA1 and DRA2 by privately owned interface synchronization IMSI, user and the corresponding relation of PCRF that belong to same producer, make DRA2 according to Rx interface message, and IMSI, the IP address of user and the corresponding relation of PCRF determine the PCRF that DRA1 binds, and DRA2 is tied to same PCRF, the embodiment of the present invention by judging the type of the response message that PCRF sends to DRA1, can determine the content of the data synchronization request message that DRA1 is sent to DRA2 by data transmission channel.Therefore, ensure that under different application scenarioss, DRA1 can both send data synchronization request message accurately to DRA2, so that the data synchronization request message carrying PCRF binding information that DRA2 can send according to DRA1, be tied to the PCRF that DRA1 binds, thus realize DRA2 and DRA1 and be tied to one PCRF.
In order to ensure that the data synchronization request message that a DRA is sent to the 2nd DRA by data transmission channel is successfully received by the 2nd DRA, 2nd DRA needs after the data synchronization request message receiving a DRA transmission, send data sync response message by data transmission channel to a DRA, prove that the 2nd DRA has received the data synchronization request message carrying PCRF binding information.Therefore, in an implementation of the embodiment of the present invention, on the basis of implementation as shown in Figure 2 or as shown in Figure 3, PCRF binding information is preserved at execution step 104 the 2nd DRA, so that before the 2nd DRA is tied to PCRF according to PCRF binding information, can also step 106 be performed, as shown in Figure 4 or as shown in Figure 5:
106, the 2nd DRA sends data sync response message by data transmission channel to a DRA.
Wherein, data sync response message carries message identification, type of message, session identification and result parameter, and result parameter is for representing whether data synchronization request message is successfully processed by the 2nd DRA.
When be finished step 1031 or step 1032 time, the 2nd DRA can send data sync response message by data transmission channel to a DRA notify a DRA, and the 2nd DRA has received the data synchronization request message that a DRA sends.It should be noted that, data sync response message carries message identification, type of message, session identification and result parameter.As shown in Table 6, be after the 2nd DRA receives the DSR-I message of a DRA transmission, to the information entrained by DSA-I (DataSynchronizationAnswer-Initial, DRA data syn-chronization the creates response) message that a DRA sends; As shown in Table 7, be after the 2nd DRA receives the DSR-U message of a DRA transmission, to the information entrained by DSA-U (response of DataSynchronizationAnswer-Update, the DRA data synchronization updating) message that a DRA sends; As shown in Table 8, be after the 2nd DRA receives the DSR-T message of a DRA transmission, to the information entrained by DSA-T (DataSynchronizationAnswer-Termination, DRA data syn-chronization the stops response) message that a DRA sends.
Table six
Table seven
Table eight
The method of a kind of binding session that the embodiment of the present invention provides, before the 2nd DRA preserves PCRF binding information, 2nd DRA needs the different pieces of information synchronization request message according to receiving, and sends different pieces of information synchronous response message by data transmission channel to a DRA.Be compared in prior art the IP address of DRA1 and DRA2 by privately owned interface synchronization IMSI, user and the corresponding relation of PCRF that belong to same producer, make DRA2 according to Rx interface message, and IMSI, the IP address of user and the corresponding relation of PCRF determine the PCRF that DRA1 binds, and DRA2 is tied to same PCRF, the embodiment of the present invention can send data sync response message by data transmission channel to DRA1 by DRA2, proves that DRA2 has received the data synchronization request message carrying PCRF binding information of DRA1 transmission.Therefore, ensure that the data synchronization request message that DRA1 is sent to DRA2 by data transmission channel is successfully received by DRA2, so that the data synchronization request message carrying PCRF binding information that DRA2 can send according to DRA1, be tied to the PCRF that DRA1 binds, thus realize DRA2 and DRA1 and be tied to one PCRF.
In an implementation of the embodiment of the present invention, the 2nd DRA is provided with the second database, and the second database is for storing PCRF binding information.Therefore, on the basis of implementation as shown in Figure 1, can also be embodied as implementation as shown in Figure 6, step 104 the 2nd DRA preserves PCRF binding information, so that the 2nd DRA is tied to PCRF according to PCRF binding information, can step 1041 be implemented as:
1041, PCRF binding information is stored in the second database by the 2nd DRA, so that the 2nd DRA is tied to PCRF according to PCRF binding information.
Such as: when a DRA is DRA1,2nd DRA is DRA2, and when the type of response message that PCRF sends to DRA1 is conversation establishing response message, DRA2 and DRA1 is in PCC conversation establishing process, carry out the synchronous interaction flow of PCRF binding information as shown in Figure 7, concrete implementation is as follows:
201, as VoLTE (VoiceoverLongTermEvolution, speech business based on LTE) terminal initiate VoLTE calling time, PCEF sends CCR-I message to DRA1, wherein, CCR-I message at least carries SessionID, IMSI, MSISDN, IPAddress, APN and PCEFHost;
202, DRA1 is that VoLTE terminal selects a PCRF according to carrier network strategy, and CCR-I message is sent to PCRF;
203, PCRF sends CCA-I message to DRA1, and wherein, CCA-I message at least carries the PCRFHost of the PCRF of SessionID, PCEFHost and needs binding;
204, by judging the type of the response message that PCRF sends, when the type determining response message is conversation establishing response message, extract the PCRF binding information of the new PCRF session created, and PCRF binding information is stored in first database of DRA1, wherein, PCRF binding information carries SessionID, IMSI, MSISDN, IPAddress, APN, PCRFHost and PCEFHost;
205, another DRA2 that DRA1 affixes one's name to same intra-zone sends DSR-I message, and wherein, DSR-I message carries PCRF binding information;
206, DRA2 extracts the PCRF binding information carried in DSR-I message, and is stored in second database of DRA2 by PCRF binding information;
207, DRA2 sends DSA-I message to DRA1, and wherein, DSA-I message carries the ResultCode that SessionID and value are success;
208, DRA1 sends CCA-I message to PCEF;
209, as the SIP (SessionInitiationProtocol that VoLTE terminal is being set up, session initiation protocol) when signaling bear sends SIP call control signalling, AF sends AAR (AuthenticationandAuthorizationRequest to DRA2, authentication authorization request) message, so that AAR message is sent to corresponding PCRF by DRA2, thus realize AF and provide session information according to the business need in SIP to PCRF, wherein, AAR message carries IPAddress;
210, DRA2 is according to IPAddress, searches the PCRF binding information stored in the second database, thus determines corresponding PCRF;
211, DRA2 sends AAR message to PCRF;
212, PCRF sends AAA (AuthenticationandAuthorizationAnswer, Certificate Authority responds) message to DRA2;
213, DRA2 sends AAA message to AF, completes the binding of PCRF session, so that the interface message that VoLTE SS later comes from Gx is all routed to one PCRF, until PCC session termination with the interface message coming from Rx.
Again such as: when a DRA is DRA1,2nd DRA is DRA2, and when the type of response message that PCRF sends to DRA1 is session updates response message, DRA2 and DRA1 is in PCC session updates process, carry out the synchronous interaction flow of PCRF binding information as shown in Figure 8, concrete implementation is as follows:
301, when the PCC session information of VoLTE terminal changes, such as: during VoLTE terminal change IPAdrress, PCEF sends CCR-U message to DRA1, and wherein, CCR-U message at least carries SessionID, IMSI, MSISDN, IPAddress, APN and PCEFHost;
302, DRA1 is that VoLTE terminal selects a PCRF according to carrier network strategy, and CCR-U message is sent to PCRF;
303, PCRF sends CCA-U message to DRA1, and wherein, CCA-U message at least carries SessionID, PCEFHost and PCRFHost;
304, by judging the type of the response message that PCRF sends, when the type determining response message is session updates response message, extract the PCRF binding information of the PCRF session after upgrading, and upgrade the PCRF binding information in first database of DRA1, wherein, PCRF binding information carries SessionID, IMSI, MSISDN, IPAddress, APN, PCRFHost and PCEFHost;
305, another DRA2 that DRA1 affixes one's name to same intra-zone sends DSR-U message, and wherein, DSR-U message carries PCRF binding information;
306, DRA2 extracts the PCRF binding information carried in DSR-U message, and upgrades the PCRF binding information in second database of DRA2;
307, DRA2 sends DSA-U message to DRA1, and wherein, DSA-U message carries the ResultCode that SessionID and value are success;
308, DRA1 sends CCA-U message to PCEF;
309, AF sends AAR message to DRA2, so that AAR message is sent to corresponding PCRF by DRA2, thus realize AF and provide session information according to the business need in SIP to PCRF, wherein, AAR message carries IPAddress;
310, DRA2 is according to IPAddress, searches the PCRF binding information stored in the second database, thus determines corresponding PCRF;
311, DRA2 sends AAR message to PCRF;
312, PCRF sends AAA message to DRA2;
313, DRA2 sends AAA message to AF, completes the binding of PCRF session, so that the interface message that VoLTE SS later comes from Gx is all routed to one PCRF, until PCC session termination with the interface message coming from Rx.
Again such as: when a DRA is DRA1,2nd DRA is DRA2, and when the type of response message that PCRF sends to DRA1 is session termination response message, DRA2 and DRA1 is in PCC session termination process, carry out the synchronous interaction flow of PCRF binding information as shown in Figure 9, concrete implementation is as follows:
401, when the PCC session of VoLTE terminal needs to stop, such as: when VoLTE terminal rolls off the production line, PCEF sends CCR-T message to DRA1, and wherein, CCR-T message at least carries SessionID;
402, DRA1 is the PCRF that VoLTE terminal is selected to have bound according to the PCRF binding information stored in the first database, and CCR-T message is sent to PCRF;
403, PCRF sends CCA-T message to DRA1, and wherein, CCA-I message at least carries SessionID;
404, by judging the type of the response message that PCRF sends, when the type determining response message is session termination response message, extract the SessionID that PCRF binding information carries, and delete PCRF binding information corresponding to the SessionID that stores in the first database;
405, another DRA2 that DRA1 affixes one's name to same intra-zone sends DSR-T message, and wherein, DSR-T message carries SessionID;
406, DRA2 extracts the SessionID carried in DSR-I message, and deletes PCRF binding information corresponding to the SessionID that stores in the second database;
407, DRA2 sends DSA-T message to DRA1, and wherein, DSA-T message carries the ResultCode that SessionID and value are success;
408, DRA1 sends CCA-T message to PCEF, to complete the data syn-chronization of the first database in PCC session termination process and the second database.
The method of a kind of binding session that the embodiment of the present invention provides, one DRA receives the response message carrying PCRF binding information that PCRF sends, and PCRF binding information is stored in first database of a DRA, sent the data synchronization request message carrying PCRF binding information afterwards to the 2nd DRA by data transmission channel, PCRF binding information is saved to the second database by the 2nd DRA.Be compared in prior art belong to same producer DRA1 and DRA2 by privately owned interface synchronization IMSI, the IP address of user and the corresponding relation of PCRF, make DRA2 according to Rx interface message, and IMSI, the IP address of user and the corresponding relation of PCRF determine the PCRF that DRA1 binds, and DRA2 is tied to same PCRF, the embodiment of the present invention can by arranging the first database at a DRA, PCRF binding information is stored in the first database, and sent to the 2nd DRA by data transmission channel, guarantee that the 2nd DRA can get the PCRF binding information of a DRA transmission, so that the 2nd DRA is tied to PCRF according to PCRF binding information, avoid because DRA2 and DRA1 belongs to different manufacturers, make the IMSI that DRA2 possibility None-identified DRA1 is sent by privately owned interface, the IP address of user and the corresponding relation of PCRF and cause DRA2 successfully cannot bind PCRF.Therefore, ensure that and be tied to the PCRF binding information that DRA2 can send according to DRA1 the PCRF that DRA1 binds, thus realize DRA2 and DRA1 and be tied to one PCRF.
The embodiment of the present invention provides a kind of network system 50, as shown in Figure 10.Network system 50 is provided with the first via by agent node DRA51, the 2nd DRA52 and "Policy and Charging Rules Function entity PCRF53, and a DRA51 is provided with the first database, and the first database is for storing PCRF binding information.
One DRA51, for receiving the response message that PCRF53 sends, response message carries PCRF binding information.
One DRA51, also for obtaining PCRF binding information, and is stored in the first database.
One DRA51, also for sending data synchronization request message by data transmission channel to the 2nd DRA52, data synchronization request message carries PCRF binding information.
2nd DRA52, for preserving PCRF binding information, so that the 2nd DRA52 is tied to PCRF53 according to PCRF binding information.
In an implementation of the embodiment of the present invention, network system 50 be also provided with strategy and charging execution function entity PCEF54, a DRA51, also for:
According to response message, determine the type of response message, the type of response message comprises: conversation establishing response message, session updates response message or session termination response message.
One DRA51, also for:
When the type of response message be conversation establishing response message or session updates response message time, send data synchronization request message by data transmission channel to the 2nd DRA52, data synchronization request message carries message identification, type of message, session identification, international mobile subscriber identity IMSI, the integrated services digital network numbering MSISDN of mobile subscriber, the Internet protocol IP address of user, APN APN, PCRF Hostname and PCEF Hostname;
When the type of response message is session termination response message, send message identification, type of message and session identification by data transmission channel to the 2nd DRA52.
In an implementation of the embodiment of the present invention, the 2nd DRA, also for:
Data sync response message is sent to a DRA by data transmission channel, data sync response message carries message identification, type of message, session identification and result parameter, and result parameter is for representing whether data synchronization request message is successfully processed by the 2nd DRA.
In an implementation of the embodiment of the present invention, the 2nd DRA52 is provided with the second database, the second database for storing PCRF binding information, the 2nd DRA52, specifically for:
PCRF binding information is stored in the second database, so that the 2nd DRA52 is tied to PCRF53 according to PCRF binding information.
A kind of network system that the embodiment of the present invention provides, one DRA receives the response message carrying PCRF binding information that PCRF sends, and PCRF binding information is stored in first database of a DRA, sent the data synchronization request message carrying PCRF binding information afterwards to the 2nd DRA by data transmission channel, the 2nd DRA preserves PCRF binding information.Be compared in prior art belong to same producer DRA1 and DRA2 by privately owned interface synchronization IMSI, the IP address of user and the corresponding relation of PCRF, make DRA2 according to Rx interface message, and IMSI, the IP address of user and the corresponding relation of PCRF determine the PCRF that DRA1 binds, and DRA2 is tied to same PCRF, the embodiment of the present invention can by arranging the first database at a DRA, PCRF binding information is stored in the first database, and sent to the 2nd DRA by data transmission channel, guarantee that the 2nd DRA can get the PCRF binding information of a DRA transmission, so that the 2nd DRA is tied to PCRF according to PCRF binding information, avoid because DRA2 and DRA1 belongs to different manufacturers, make the IMSI that DRA2 possibility None-identified DRA1 is sent by privately owned interface, the IP address of user and the corresponding relation of PCRF and cause DRA2 successfully cannot bind PCRF.Therefore, ensure that and be tied to the PCRF binding information that DRA2 can send according to DRA1 the PCRF that DRA1 binds, thus realize DRA2 and DRA1 and be tied to one PCRF.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for system embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1. the method for a binding session, described method is used for network system, described network system is provided with the first via by agent node DRA, the 2nd DRA and "Policy and Charging Rules Function entity PCRF, it is characterized in that, a described DRA is provided with the first database, described first database is for storing PCRF binding information, and described method comprises:
A described DRA receives the response message that described PCRF sends, and described response message carries described PCRF binding information;
A described DRA obtains described PCRF binding information, and is stored in described first database;
A described DRA sends data synchronization request message by data transmission channel to described 2nd DRA, and described data synchronization request message carries described PCRF binding information;
Described 2nd DRA preserves described PCRF binding information, so that described 2nd DRA is tied to described PCRF according to described PCRF binding information.
2. method according to claim 1, is characterized in that, described network system is also provided with strategy and charging execution function entity PCEF, at a described DRA by data transmission channel to before described 2nd DRA transmission data synchronization request message, comprising:
A described DRA is according to described response message, and determine the type of described response message, the type of described response message comprises: conversation establishing response message, session updates response message or session termination response message;
A described DRA sends data synchronization request message by data transmission channel to described 2nd DRA, comprising:
When the type of described response message be described conversation establishing response message or described session updates response message time, a described DRA sends described data synchronization request message by described data transmission channel to described 2nd DRA, and described data synchronization request message carries message identification, type of message, session identification, international mobile subscriber identity IMSI, the integrated services digital network numbering MSISDN of mobile subscriber, the Internet protocol IP address of user, APN APN, PCRF Hostname and PCEF Hostname;
When the type of described response message is described session termination response message, a described DRA sends described message identification, described type of message and described session identification by described data transmission channel to described 2nd DRA.
3. method according to claim 2, is characterized in that, preserves described PCRF binding information at described 2nd DRA, so that before described 2nd DRA is tied to described PCRF according to described PCRF binding information, comprising:
Described 2nd DRA sends data sync response message by described data transmission channel to a described DRA, described data sync response message carries described message identification, described type of message, described session identification and result parameter, and described result parameter is for representing whether described data synchronization request message is successfully processed by the 2nd DRA.
4. method according to claim 1, it is characterized in that, described 2nd DRA is provided with the second database, described second database is for storing described PCRF binding information, described 2nd DRA preserves described PCRF binding information, so that described 2nd DRA is tied to described PCRF according to described PCRF binding information, comprising:
Described PCRF binding information is stored in described second database by described 2nd DRA, so that described 2nd DRA is tied to described PCRF according to described PCRF binding information.
5. a network system, described network system is provided with the first via by agent node DRA, the 2nd DRA and "Policy and Charging Rules Function entity PCRF, it is characterized in that, a described DRA is provided with the first database, described first database is for storing PCRF binding information, a described DRA, for receiving the response message that described PCRF sends, described response message carries described PCRF binding information;
A described DRA, also for obtaining described PCRF binding information, and is stored in described first database;
A described DRA, also for sending data synchronization request message by data transmission channel to described 2nd DRA, described data synchronization request message carries described PCRF binding information;
Described 2nd DRA, for preserving described PCRF binding information, so that described 2nd DRA is tied to described PCRF according to described PCRF binding information.
6. network system according to claim 5, is characterized in that, described network system be also provided with strategy and charging execution function entity PCEF, a described DRA, also for:
According to described response message, determine the type of described response message, the type of described response message comprises: conversation establishing response message, session updates response message or session termination response message;
A described DRA, also for:
When the type of described response message be described conversation establishing response message or described session updates response message time, send described data synchronization request message by described data transmission channel to described 2nd DRA, described data synchronization request message carries message identification, type of message, session identification, international mobile subscriber identity IMSI, the integrated services digital network numbering MSISDN of mobile subscriber, the Internet protocol IP address of user, APN APN, PCRF Hostname and PCEF Hostname;
When the type of described response message is described session termination response message, send described message identification, described type of message and described session identification by described data transmission channel to described 2nd DRA.
7. network system according to claim 6, is characterized in that, described 2nd DRA, also for:
Data sync response message is sent to a described DRA by described data transmission channel, described data sync response message carries described message identification, described type of message, described session identification and result parameter, and described result parameter is for representing whether described data synchronization request message is successfully processed by the 2nd DRA.
8. network system according to claim 5, is characterized in that, described 2nd DRA is provided with the second database, described second database for storing described PCRF binding information, described 2nd DRA, specifically for:
Described PCRF binding information is stored in described second database, so that described 2nd DRA is tied to described PCRF according to described PCRF binding information.
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