CN105282775A - Multi-session binding method, device and system - Google Patents
Multi-session binding method, device and system Download PDFInfo
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- CN105282775A CN105282775A CN201410277546.1A CN201410277546A CN105282775A CN 105282775 A CN105282775 A CN 105282775A CN 201410277546 A CN201410277546 A CN 201410277546A CN 105282775 A CN105282775 A CN 105282775A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
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- H04W28/088—Load balancing or load distribution among core entities
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Abstract
The invention discloses a multi-session binding method, device and system. The method comprises that a user terminal receives PCRF related information which is distributed by a PGW when the user terminal establishes a first IP-CAN session of a Gx interface; and the user terminal sends an invitation message, which carries the PCRF related information, to an AF, and the AF is thus indicated to set PCRF as a target host for authenticating application messages when the user terminal establishes the session of the Rx interface.
Description
Technical field
The present invention relates to the communications field, in particular to one many binding sessions method, Apparatus and system.
Background technology
LTE (i.e. 4G) can be the bandwidth that single mobile subscriber provides 20M, achieves WiMAX.In LTE, if continue the nontraffic sensitive (such as 70M/10 currency unit) continuing to use flow, owing to needing the bandwidth of at substantial, therefore, the probability needing the business (such as HD video program request etc.) consuming very large bandwidth to be used by user is less.Concerning operator, then cannot play the high bandwidth advantage of 4G network, thus waste Internet resources, weaken the competitiveness of 4G network.Concerning service provider, because the utilization rate of user is not high, enough incomes cannot be obtained and drop into again, so have impact on business continue provide, user is also difficult to freely enjoy colourful high bandwidth business.
At PCC (PolicyControlandCharging, policy control and charging) in framework, by online charging and the charging based on stream, make operator can use different rates for different business, to encourage user to use high bandwidth business, promote Consumer's Experience, be conducive to attracting potential user, fighting for his network users, thus realize the three win situations of mobile subscriber/operator/service provider, 4G market of jointly running business big and strong.
For typical VoIP business, AF (ApplicationFunction, application server) be the network element of service layer, be Rx with the interface of PCRF (PolicyandChargingRulesFunction, strategy and charging regulation function entity); PCEF (PolicyandChargingEnforcementFunction, strategy and charging strengthen functional entity) is the logical ne of session aspect, is Gx with the interface of PCRF.Service layer and session aspect are two independently aspects.When only having a PCRF network element in network, Gx/Rx interface conjunctionn gets up by PCRF network element.For the same business of mobile subscriber, as shown in Figure 1, PCRF changes according to the real-time media stream of AF business, qos policy control and expense rating control are carried out to PCEF, PCEF sends Real-time charging messages and falls OCS (OnlineChargingSystem, Online Charging System), carry out online charging.OCS is by Sy interface to the current residue amount always of PCRF timing feedback user, and PCRF carries out new Quota distribution to PCEF according to this, so circulates.This Controlling model requires that the PCRF main frame of same user Gx/Rx interface is identical, and this is the basic demand of service layer to PCC system.According to the change of VoIP (VoiceoverInternetProtocol, the networking telephone) Media Stream, the expense rating of control PCEF and QoS (QualityofService, service quality) distribute PCRF in real time.
When 4G customer volume increases, the process off-capacity of single PCRF is to bear the business demand of whole network, operator certainly will configure multiple PCRF and carry out load sharing, Rx/Gx interface session for same customer service still requires to be controlled by same PCRF, is referred to as many binding sessions.
In order to support many binding sessions when many PCRF networking, in correlation technique, mainly contain two class methods, i.e. " the data schema method " of operator and " DRA (DiameterRoutingAgent, the diameter route agent) Proxy Method " of 3GPP.
In " the data schema method " of operator, for multiple PCRF, number section that each PCRF service is different.As IMSI (InternationalMobileSubscriberIdentity, international mobile subscriber identification)/MSISDN (MobileStationinternationalISDNnumber, Mobile Subscriber International ISDN number) after number section of/IPv4/IPv6 all so plans, be equivalent to single PCRF networking.Service node, when sending Diameter message, arranges PCRF host name according to number section planning.Mainly there is following defect in this method: due to the roaming characteristic of mobile subscriber, the network of all support roamings all needs number segment data of maintaining IMS I/MSISDN/IPv4/IPv6, and the data maintenance workload that multiple roaming network is added up is larger than going back of present networks; In addition, number section planning of IMSI/MSISDN/IPv4/IPv6 will cause the waste of resource and in short supply.Thus when causing needs to be expanded or change IMSI/MSISDN/IPv4/IPv6 section, many network elements of other all roaming networks can be related to; When expansion or change PCRF node, involve many network elements of other all roaming networks; The static programming of IMSI/MSISDN/IPv4/IPv6 section causes the waste of these resources and in short supply; Be difficult between PCRF node support dynamic load share of command, be unfavorable for the service availability improving whole PCRF territory.
" the DRA Proxy Method " of 3GPP: 3GPP29.213 agreement introduces DRA agent network element specially, provide two kinds of technology and solve this problem, namely act on behalf of DRA (ProxyDRA) mode and redirected DRA (RedirectDRA) mode, it realizes principle see Fig. 2 and Fig. 3.In the network model shown in Fig. 2, the Diameter session of the distinct interface of same user is carried out binding and transmitting signaling by DRA.During paired configuration, DRA needs binding information real-time synchronization to partner DRA.In the network model shown in Fig. 3, the Diameter session of the distinct interface of same user is carried out binding and by ' Redirect-Host ' AVP, the PCRF host name of binding is returned to the node called by DRA, calls node and routes messages to this PCRF main frame according to this.During paired configuration, DRA needs binding information real-time synchronization to partner DRA.As can be seen here, adopt in this way, commercial DRA node needs paired configuration usually, improves reliability by load sharing or active/standby mode.But " the DRA Proxy Method " of 3GPP has following defect: need special increase DRA agent network element, make PCC framework more complicated; DRA needs to safeguard based on the binding data of user, or based on the binding data of APN (AccessPointName, APN).When DRA configures in pairs, need between DRA to carry out dynamic binding data syn-chronization, or realize data sharing by other technologies.Thus cause: when many PCRF networking, must special DRA agent network element be configured; When DRA network element is disposed in pairs, need between DRA to carry out dynamic binding data syn-chronization, or realize data sharing by other technologies, realize all very complicated; When DRA network element is disposed in pairs, the compatibility existing problems between xenogenesis producer DRA equipment; DRA network element becomes traffic affecting newly-increased negative factor, thus reduces the reliability of whole system business.
Causing problem above for configuring multiple PCRF share loads in correlation technique, not yet proposing effective solution at present.
Summary of the invention
The above-mentioned problem occurred for configuring multiple PCRF share loads in correlation technique, the invention provides one, at least to solve the problem.
According to an aspect of the present invention, provide a kind of many binding sessions method, comprising: the relevant information of the strategy that user terminal reception packet data network gateway PGW distributes when the IP setting up Gx interface for described user terminal connects Access Network IP-CAN session and charging regulation function entity PCRF; Described user terminal sends invitation message to application server AF, wherein, carry the relevant information of described PCRF in described invitation message, indicating described AF when setting up Rx interface session for described user terminal, described PCRF being set to the destination host of authentication application message.
Alternatively, after described user terminal receives the relevant information of described PCRF, described method also comprises: described user terminal is determined to need to set up the 2nd IP-CAN session; The described PGW that the relevant information of described PCRF is sent by network by described user terminal, indicates described PGW when setting up described 2nd IP-CAN session, is set to described PCRF create the destination host controlling request CCR message.
Alternatively, before the described PGW that the relevant information of described PCRF is sent by network by described user terminal, described method also comprises: described user terminal determines that described 2nd IP-CAN session is identical with the access point APN that a described IP-CAN session uses.
Alternatively, the described PGW that the relevant information of described PCRF is sent by network comprises by described user terminal: described user terminal sends grouped data network PDN connection request message, wherein, the relevant information of described PCRF is carried in described PDN connection request message; Mobile management entity receives described PDN connection request message, sends and creates conversation request message, wherein, carry the relevant information of described PCRF in described establishment conversation request message; Described establishment conversation request message is transmitted to described PGW by gateway SGW.
Alternatively, user terminal receives the relevant information of the PCRF that packet data network gateway PGW distributes when the IP setting up Gx interface for described user terminal connects Access Network IP-CAN session, comprise: packet data network gateway PGW receives establishment conversation request message, when a described IP-CAN session of setting up Gx interface, according to carrier policy, obtain the described PCRF of a described IP-CAN binding session; The relevant information of described PCRF is carried to create in conversational response message and sends to gateway by described PGW, is transmitted to described user terminal by described gateway by mobile management entity.
Alternatively, the relevant information of described PCRF comprises: the host name of described PCRF.
Alternatively, the relevant information of described PCRF also comprises: binding session is to the method for PCRF, and wherein, described binding session comprises to the method for PCRF: bind based on APN or bind based on user.
According to another aspect of the present invention, provide a kind of many binding sessions device, comprise: receiver module, for receiving the relevant information of the packet data network gateway PGW strategy that distributes and charging regulation function entity PCRF when the IP setting up Gx interface for user terminal connects Access Network IP-CAN session; First sending module, for sending invitation message to application server AF, wherein, in described invitation message, carry the relevant information of described PCRF, indicating described AF when setting up Rx interface session for described user terminal, described PCRF being set to the destination host of authentication application message.
Alternatively, described device also comprises: the first determination module, needs to set up the 2nd IP-CAN session for determining; Second sending module, for the relevant information of described PCRF is sent to described PGW by network, indicates described PGW when setting up described 2nd IP-CAN session, is set to described PCRF create the destination host controlling request CCR message.
Alternatively, described device also comprises: the second determination module, for determining that described 2nd IP-CAN session is identical with the access point APN that a described IP-CAN session uses, triggers described second sending module.
According to a further aspect of the invention, provide the sending method of a kind of strategy and charging regulation function entity PCRF information, comprise: packet data network gateway PGW, when the IP setting up Gx interface for user terminal connects Access Network IP-CAN session, is a described IP-CAN session distribution PCRF; The relevant information of described PCRF, by network, is sent to described user terminal by described PGW.
Alternatively, described method also comprises: described PGW receives the request into described user terminal establishment the 2nd IP-CAN session, wherein, carries the relevant information of described PCRF in described request; The described PCRF distributing to a described IP-CAN session is distributed to described 2nd IP-CAN session by described PGW.
Alternatively, the relevant information of described PCRF comprises: the host name of described PCRF.
Alternatively, the relevant information of described PCRF also comprises: binding session is to the method for PCRF, and wherein, described binding session comprises to the method for PCRF: bind based on APN or bind based on user.
According to a further aspect of the invention, the dispensing device of a kind of strategy and charging regulation function entity PCRF information is provided, comprise: distribution module, during for connecting Access Network IP-CAN session at the IP setting up Gx interface for user terminal, for a described IP-CAN session distributes PCRF; Sending module, for by network, sends to described user terminal by the relevant information of described PCRF.
Alternatively, also comprise: receiver module, creating the request of the 2nd IP-CAN session for being received as described user terminal, wherein, in described request, carrying the relevant information of described PCRF; Described distribution module is also for distributing to described 2nd IP-CAN session by the described PCRF distributing to a described IP-CAN session.
According to a further aspect of the invention, provide a kind of session establishing method, comprising: application server AF receives the invitation message that user terminal sends, and wherein, carries the relevant information of described PCRF in described invitation message; Described PCRF, when setting up Rx interface session for described user terminal, is set to the destination host of authentication application message by described AF.
According to a further aspect of the invention, providing a kind of session establishment device, comprising: receiver module, for receiving the invitation message that user terminal sends, wherein, in described invitation message, carrying the relevant information of described PCRF; Module being set, for when setting up Rx interface session for described user terminal, described PCRF being set to the destination host of authentication application message.
According to a further aspect of the invention, provide a kind of many binding sessions system, comprising: user terminal, packet data network gateway PGW and application server AF, wherein, described PGW comprises above-mentioned PCRF information transmitting apparatus; Described user terminal comprises above-mentioned many binding sessions device; Described AF comprises above-mentioned session establishment device.
Pass through the present invention, the PCRF host information that Gx session distributes is delivered to mobile terminal, forwarded by mobile terminal again, after AF receives, be set to the destination host name of Diameter message in Rx session, thus realize multiple Gx/Rx sessions of same user concurrent to be routed on identical PCRF main frame, overcome the above-mentioned shortcoming of " data schema mode " and " DRA agent way ", implementation is succinct, efficient, enormously simplify maintenance work, improves the reliability of system.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the real time billing closed loop control framework schematic diagram of the PCC framework according to correlation technique;
Fig. 2 is the DRA network model schematic diagram of the Proxy agent way of 3GPP according to correlation technique;
Fig. 3 is the DRA network model schematic diagram of the Redirect agent way of 3GPP according to correlation technique;
Fig. 4 is the structural representation of the many binding sessions system according to the embodiment of the present invention;
Fig. 5 is the structural representation of the many binding sessions device according to the embodiment of the present invention;
Fig. 6 is the structural representation of the dispensing device of PCRF information according to the embodiment of the present invention;
Fig. 7 is the structural representation of the session establishment device according to the embodiment of the present invention;
Fig. 8 is the flow chart of the many binding sessions method according to the embodiment of the present invention;
Fig. 9 is the flow chart of the sending method of PCRF information according to the embodiment of the present invention;
Figure 10 is the flow chart of the session establishing method according to the embodiment of the present invention;
Figure 11 is the signaling process figure of the many binding sessions according to the embodiment of the present invention one;
Figure 12 is the signaling process figure of the many binding sessions according to the embodiment of the present invention two.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
According to the embodiment of the present invention, provide a kind of many binding sessions system.
Fig. 4 is the structural representation of the many binding sessions system according to the embodiment of the present invention, as shown in Figure 4, this system mainly comprises: user terminal 40, packet data network gateway (PacketDataNetworkGateway, PGW) 42 and application server (AF) 44.Wherein, described PGW42 is used for being strategy and the charging regulation function entity (PolicyandChargingRulesFunction that described user terminal 40 sets up IP connection Access Network (IP-CAN) session distribution of Gx interface, and the relevant information of described PCRF is sent to described user terminal 40 by network PCRF); Described user terminal 40, for receiving the relevant information of the described PCRF that described PGW42 sends, and sends the invitation message of carrying the relevant information of described PCRF to described AF42; Described AF42, for when setting up Rx interface session for described user terminal 40, is set to the destination host of authentication application message by described PCRF.
Such as, user terminal 40 can when initiating VoIP business, send PDN connection request message to mobile management entity (such as, MME), after MME receives this message, after transmission establishment conversation request message (CreateSessionRequest) receives this message to SGW, SGW, send and create conversation request message (CreateSessionRequest) to PGW42.After PGW42 receives this message, distribute and binding strategy according to the IMSI/APN of user and the PCRF of operator, such as, adopt load-sharing strategy, PGW42 is according to load-sharing strategy Stochastic choice PCRF, then send CCR_I (CCRInitial, CCR initial message) message and set up Gx session, the Dest-Realm of message can be the domain name of PCRF.Then, PGW42 sends and creates conversational response message (CreateSessionResponse) information to SGW, arrange and carry the relevant information of above-mentioned PCRF, after SGW receives this message, send and create conversational response message (CreateSessionResponse) information to MME, carry the relevant information of PCRF, after MME receives this message, send PDN and accept message (PDNCONNECTIVITYACCEPT, be actually and activate bearing request message) message, carry the relevant information of PCRF, user terminal 40 is according to receiving PCRF information, the INVITE of assembling SIP signaling.Then, user terminal 40 sends INVITE to AF44, can carry PCRF host name by newly-increased privately owned header field P-PCRF-Host-Name.AF44 receives INVITE, carries out Rx interface session establishment, sends AAR message, the Dest-Host of message is set to the PCRF host name that INVITE carries, and carry out route according to destination host, send a message to identical PCRF, thus achieve the PCRF binding of Gx/Rx session.
Alternatively, the relevant information of described PRCF also for when determining to need to set up the 2nd IP-CAN session, is sent to described PGW42 by network by described user terminal 40.Described PCRF, also for when setting up described 2nd IP-CAN session, is set to create the destination host controlling request CCR message by described PGW42.Be tied on same PCRF by the Gx interface session of this Alternate embodiments by same user.
Alternatively, described user terminal 40 determines that described 2nd IP-CAN session uses identical access point (APN) with a described IP-CAN session before also sending to described PGW42 for the relevant information at described PRCF by network.By this Alternate embodiments, user can be used the Gx interface session of the access of same access point to be tied on same PCRF.
By the said system that the embodiment of the present invention provides, when many PCRF networking, PGW is delivered to mobile terminal by PCRF host information Gx session distributed, forwarded by mobile terminal again, AF or PGW (PDN-Gateway, PDN Gateway) receive after, be set to the destination host name of Diameter message in Rx/Gx session, thus realize multiple Gx/Rx sessions of same user concurrent are routed on identical PCRF main frame.
According to Current protocol, between mobile terminal (UE) and PGW (function of PCEF be actually PGW network element realize), by PCO (ProtocolConfigurationOptions, protocol configuration option) parameter Bidirectional transparent transmission information.This mechanism is used in embodiment of the present invention, by expansion PCO, by needing the PCRF information of binding to be transparent to mobile terminal from PGW, to realize the binding of Gx/Rx session, or the binding of Gx/Gx session.
In embodiments of the present invention, can by expanding the message of existing signaling, to transmit the relevant information of described PCRF.Wherein, PDN connection request (PDNCONNECTIVITYREQUEST) message can be expanded according to shown in table 1, in the PCO information unit existed, increase " PCRF-Info " information.
Table 1.
Activation carrying request (ActivatededicatedEPSbearercontextrequest)/PDN accepts message and can expand according to table 2, as shown in table 2, in the PCO information unit existed, increase " PCRF-Info " information.
Table 2.
Create session request (CreateSessionRequest) message, can expand according to table 3, as shown in table 3, in the PCO information unit existed, increase " PCRF-Info " parameter.
Table 3.
Create conversational response (CreateSessionResponse) message to expand according to table 4, as shown in table 4, in the PCO information unit existed, increase " PCRF-Info " parameter.
Table 4.
And PCO information unit can be expanded according to table 5, as shown in table 5, extend 0012H (i.e. the relevant information of PCRF) in additional parameter list (octetsw+1toz).
Table 5.
In embodiments of the present invention, mobile terminal is to network side to (MStonetworkdirection):
-0001H(P-CSCFIPv6AddressRequest)；
-0002H(IMCNSubsystemSignalingFlag)；
-0003H(DNSServerIPv6AddressRequest)；
-0004H(NotSupported)；
-0005H(MSSupportofNetworkRequestedBearerControlindicator)；
-0006H(Reserved)；
-0007H(DSMIPv6HomeAgentAddressRequest；
-0008H(DSMIPv6HomeNetworkPrefixRequest)；
-0009H(DSMIPv6IPv4HomeAgentAddressRequest)；
-000AH(IPaddressallocationviaNASsignalling)；
-000BH(IPv4addressallocationviaDHCPv4)；
-000CH(P-CSCFIPv4AddressRequest)；
-000DH(DNSServerIPv4AddressRequest)；
-000EH(MSISDNRequest)；
-000FH(IFOM-Support-Request)；
-0010H(IPv4LinkMTURequest)；
-0011H(MSsupportofLocaladdressinTFTindicator)；
-0012H(PCRF-Info)；and
-FF00HtoFFFFHreservedforoperatorspecificuse.
Network is to mobile terminal direction (NetworktoMSdirection):
-0001H(P-CSCFIPv6Address)；
-0002H(IMCNSubsystemSignalingFlag)；
-0003H(DNSServerIPv6Address)；
-0004H(PolicyControlrejectioncode)；
-0005H(SelectedBearerControlMode；
-0006H(Reserved)；
-0007H(DSMIPv6HomeAgentAddress)；
-0008H(DSMIPv6HomeNetworkPrefix)；
-0009H(DSMIPv6IPv4HomeAgentAddress)；
-000AH(Reserved)；
-000BH(Reserved)；
-000CH(P-CSCFIPv4Address)；
-000DH(DNSServerIPv4Address)；
-000EH(MSISDN)；
-000FH(IFOM-Support)；
-0010H(IPv4LinkMTU)；
-0011H(NetworksupportofLocaladdressinTFTindicator)；
-0012H(PCRF-Info)；and
-FF00HtoFFFFHreservedforoperatorspecificuse.
Table 6 shows the definition of RCRF-Info information unit in embodiment of the present invention.As shown in table 6, PCRF-Info information spinner will comprise: PCRF host name and PCRF binding method, wherein, N is 128 to the maximum.
Table 6.
In embodiments of the present invention, can also expand the INVITE of SIP signaling, increase privately owned header field P-PCRF-Host-Name, be defined as follows:
P-PCRF-Host-Name＝"P-PCRF-Host-Name"HCOLONhostname
Wherein, the definition of Hostname can see RFC3261.
In embodiment of the present invention, PCEF (being actually PGW network element) receives SGW (ServingGateway, gateway) establishment conversation request message (CreateSessionRequest), set up the IP-CAN (IP-ConnectivityAccessNetwork of Gx interface, IP connects Access Network) session time, obtain PCRF host name according to carrier policy, binding method can based on APN, or based on user; After creating session, PCEF sends and creates conversational response message (CreateSessionResponse) to SGW, carries PCRF binding information (the PCRF host name of binding and binding method); SGW forwards and creates conversational response message (CreateSessionResponse) to MME (MobilityManagementEntity, mobile management entity); MME transmission PDN accepts message (PDNCONNECTIVITYACCEPT is actually and activates bearing request message) and is forwarded to user terminal, carries PCRF information.
When user terminal sends the INVITE of SIP (SessionInitialProtocol, session initiation protocol) signaling, carry the PCRF host name of Gx interface assignment to AF; AF sets up Rx session when receiving INVITE, the PCRF host name of carrying is set to AAR (AuthApplicationRequest, authentication application request) the destination host name (Dest-Host) of message, AF is routed to this PCRF according to destination host name, realizes the many binding sessions of Gx/Rx.
If user has set up Gx session, when setting up new IP-CAN session with same APN more simultaneously, carry PCRF information in PDN connection request (PDNCONNECTIVITYREQUEST) message, then be forwarded to PGW by creating conversation request message (CreateSessionRequest).When PGW sets up new Gx session, the PCRF host name of carrying is set to the destination host name (Dest-Host) of CCR (CreditControlRequest) message, PGW is routed to this PCRF according to destination host name, realizes many binding sessions of Gx/Gx.
By the said system that the embodiment of the present invention provides, achieve the many binding sessions of Gx/Rx, overcome the shortcomings of " data schema mode " and " DRA agent way ", implementation is succinct, efficient, enormously simplify maintenance work, improve the reliability of system.
According to the embodiment of the present invention, additionally provide a kind of many binding sessions device, this device can be arranged in user terminal 40.
Fig. 5 is the structural representation of the many binding sessions device according to the embodiment of the present invention, as shown in Figure 5, this device mainly comprises: receiver module 410, for receiving the relevant information of packet data network gateway (PGW) strategy that distributes and charging regulation function entity (PCRF) when the IP setting up Gx interface for user terminal connects Access Network (IP-CAN) session; First sending module 420, for sending invitation message to application server (AF), wherein, the relevant information of described PCRF is carried in described invitation message, indicating described AF when setting up Rx interface session for described user terminal, described PCRF being set to the destination host of authentication application message.
Alternatively, described device can also comprise: the first determination module, needs to set up the 2nd IP-CAN session for determining; Second sending module, for the relevant information of described PCRF is sent to described PGW by network, indicates described PGW when setting up described 2nd IP-CAN session, is set to by described PCRF create the destination host controlling request (CCR) message.
Such as, the relevant information of described PCRF can be carried in PDN connection request message and send to MME by the second sending module, MME upon receiving the message, conversation establishing request message is sent to SGW, carry the relevant information of described PCRF in this message, this request to create message is transmitted to PGW by SGW.
Alternatively, described device can also comprise: the second determination module, for determining that described 2nd IP-CAN session is identical with the access point APN that a described IP-CAN session uses, triggers described second sending module.
According to the embodiment of the present invention, additionally provide a kind of dispensing device of PCRF information, this device can be arranged in above-mentioned PGW.
Fig. 6 is the structural representation of the dispensing device of PCRF information according to the embodiment of the present invention, as shown in Figure 6, this device mainly comprises: distribution module 62, during for connecting Access Network IP-CAN session at the IP setting up Gx interface for user terminal, for a described IP-CAN session distributes PCRF; Sending module 64, for by network, sends to described user terminal by the relevant information of described PCRF.
Alternatively, as shown in Figure 6, this device can also comprise: receiver module 66, creating the request of the 2nd IP-CAN session, wherein, carrying the relevant information of described PCRF in described request for being received as described user terminal; Described distribution module is also for distributing to described 2nd IP-CAN session by the described PCRF distributing to a described IP-CAN session.
According to the embodiment of the present invention, additionally provide a kind of session establishment device, this device can be arranged in above-mentioned AF.
Fig. 7 is the structural representation of the session establishment device according to the embodiment of the present invention, as shown in Figure 7, this device mainly comprises: receiver module 72, for receiving the invitation message that user terminal sends, wherein, the relevant information of described PCRF is carried in described invitation message; Module 74 being set, for when setting up Rx interface session for described user terminal, described PCRF being set to the destination host of authentication application message.
According to the embodiment of the present invention, additionally provide a kind of many binding sessions method, the method can be completed by above-mentioned device or system.
Fig. 8 is the flow chart of the many binding sessions method according to the embodiment of the present invention, and as shown in Figure 8, the method mainly comprises the following steps:
Step S802, user terminal receives the relevant information of the PCRF that packet data network gateway (PGW) distributes when the IP setting up Gx interface for described user terminal connects Access Network (IP-CAN) session;
Step S804, described user terminal sends invitation message to application server AF, wherein, carries the relevant information of described PCRF in described invitation message, indicating described AF when setting up Rx interface session for described user terminal, described PCRF being set to the destination host of authentication application message.
Alternatively, after described user terminal receives the relevant information of described PCRF, described method also comprises: described user terminal is determined to need to set up the 2nd IP-CAN session; The described PGW that the relevant information of described PCRF is sent by network by described user terminal, indicates described PGW when setting up described 2nd IP-CAN session, is set to described PCRF create the destination host controlling request CCR message.By this Alternate embodiments, can by the Gx binding session of same user to one PCRF.
Alternatively, before the described PGW that the relevant information of described PCRF is sent by network by described user terminal, described method can also comprise: described user terminal determines that described 2nd IP-CAN session is identical with the access point (APN) that a described IP-CAN session uses.The Gx binding session accessed by same access point by user is to one PCRF.
Alternatively, the described PGW that the relevant information of described PCRF is sent by network can comprise by described user terminal: described user terminal sends grouped data network PDN connection request message, wherein, the relevant information of described PCRF is carried in described PDN connection request message; Mobile management entity receives described PDN connection request message, sends and creates conversation request message, wherein, carry the relevant information of described PCRF in described establishment conversation request message; Described establishment conversation request message is transmitted to described PGW by gateway SGW.
Alternatively, user terminal receives the relevant information of the PCRF that packet data network gateway PGW distributes when the IP setting up Gx interface for described user terminal connects Access Network IP-CAN session, comprise: packet data network gateway PGW receives establishment conversation request message, when a described IP-CAN session of setting up Gx interface, according to carrier policy, obtain the described PCRF of a described IP-CAN binding session; The relevant information of described PCRF is carried to create in conversational response message and sends to gateway by described PGW, is transmitted to described user terminal by described gateway by mobile management entity.
Alternatively, the relevant information of described PCRF can comprise: the host name of described PCRF.
Alternatively, the relevant information of described PCRF can also comprise: binding session is to the method for PCRF, and wherein, described binding session comprises to the method for PCRF: bind based on APN or bind based on user.
According to the embodiment of the present invention, additionally provide the sending method of a kind of strategy and charging regulation function entity (PCRF) information, the method can be realized by above-mentioned device or system.
Fig. 9 is the flow chart of the sending method of PCRF information according to the embodiment of the present invention, and as shown in Figure 9, the method mainly comprises the following steps:
Step S902, PGW, when the IP setting up Gx interface for user terminal connects Access Network (IP-CAN) session, are a described IP-CAN session distribution PCRF;
The relevant information of described PCRF, by network, is sent to described user terminal by step S904, described PGW.
Alternatively, described method can also comprise: described PGW receives the request into described user terminal establishment the 2nd IP-CAN session, wherein, carries the relevant information of described PCRF in described request; The described PCRF distributing to a described IP-CAN session is distributed to described 2nd IP-CAN session by described PGW.Thus multiple Gx interface session can be tied to same PCRF.
Alternatively, the relevant information of described PCRF comprises: the host name of described PCRF.
Alternatively, the relevant information of described PCRF also comprises: binding session is to the method for PCRF, and wherein, described binding session comprises to the method for PCRF: bind based on APN or bind based on user.
According to the embodiment of the present invention, additionally provide a kind of session establishing method, the method can be realized by above-mentioned device or system.
Figure 10 is the flow chart of the session establishing method according to the embodiment of the present invention, as shown in Figure 10, mainly comprises the following steps:
Step S1002, AF receive the invitation message that user terminal sends, and wherein, carry the relevant information of PCRF in described invitation message;
Described PCRF, when setting up Rx interface session for described user terminal, is set to the destination host of authentication application message by step S1004, described AF.
Below by specific embodiment, the technical scheme that the embodiment of the present invention provides is described.
Embodiment one
In the present embodiment, when initiating VoIP business with user terminal, the binding session of Gx/Rx interface is that example is described.
Figure 11 is the signaling process figure of the binding session of Gx/Rx interface in the present embodiment, as shown in figure 11, mainly comprises the following steps:
Step S1101: user initiates VoIP business, terminal sends PDN connection request message (PDNCONNECTIVITYrequest) message and to MME, carries IMSI number, APN information;
After step S1102:MME receives this message, send and create conversation request message (CreateSessionRequest) to SGW.
After step S1103:SGW receives this message, send and create conversation request message (CreateSessionRequest) to PGW.
After step S1104:PGW receives this message, distribute and binding strategy according to the IMSI/APN of user and the PCRF of operator, this official holiday adopts load-sharing strategy surely, send CCR_I (CCRInitial, CCR initial message) message sets up Gx session, the Dest-Realm of message is the domain name of PCRF, does not carry destination host name.PGW is according to load-sharing strategy Stochastic choice PCRF.
After step S1105:PCRF receives CCR (Initial) request message, return CCA (CreditControlAnswer, diameter credit control responds) response message, its source host is called the host name of PCRF.PGW extracts, and is recorded as the PCRF host name of this session.
Step S1106:PGW sends and creates conversational response message (CreateSessionResponse) information to SGW, arrange and carry PCRF information (PCRF host name, binding method [being the binding based on APN or the binding based on user]);
After step S1107:SGW receives this message, send and create conversational response message (CreateSessionResponse) information to MME, carry PCRF information (PCRF host name, binding method);
After step S1108:MME receives this message, send PDN and accept message (PDNCONNECTIVITYACCEPT is actually and activates bearing request message) message, carry PCRF information (PCRF host name, binding method);
Step S1109: terminal, according to receiving PCRF information, assembles the INVITE of SIP signaling.
Step S1110: terminal sends INVITE to AF, carries PCRF host name by newly-increased privately owned header field P-PCRF-Host-Name.
Step S1111:AF receives INVITE, carries out Rx interface session establishment, sends AAR message, the Dest-Host of message is set to the PCRF host name that INVITE carries, and carry out route according to destination host, send a message to identical PCRF, achieve the PCRF binding of Gx/Rx session.
Step S1112:AF receives AAA (AuthApplicationAnswer, authentication application answer) message, and operation flow continues.
Embodiment two
When the present embodiment initiates data service with user terminal, same APN sets up new PDN and connects, and is that example is described by the binding session of multiple Gx interface to one PCRF.
Figure 12 is the signaling process figure of many binding sessions in the present embodiment, as shown in figure 12, mainly comprises the following steps:
Step S1201-S1208: with the step S1101-step S1108 of embodiment one;
Step S809: user sets up new PDN and connects, and terminal judges, has established PDN and connected, and APN is identical, uses the PCRF information of record to arrange PDN connection request message;
Step S1210: terminal sends PDN connection request message (PDNCONNECTIVITYrequest) message and to MME, carries IMSI number, APN information, PCRF information;
After step S1211:MME receives this message, send and create conversation request message (CreateSessionRequest) to SGW.
After step S1212:SGW receives this message, send and create conversation request message (CreateSessionRequest) to PGW.
After step S1213:PGW receives this message, send CCR_I message, the PCRF host name that establishment conversation request message is carried is set to the destination host name of CCR_I, and carries out route according to destination host, send a message to same PCRF, achieve the PCRF binding of Gx/Gx interface.
From above description, can find out, present invention achieves following technique effect: the PCRF host information that Gx session distributes is delivered to mobile terminal, forwarded by mobile terminal again, after AF receives, be set to the destination host name of Diameter message in Rx session, thus realize multiple Gx/Rx sessions of same user concurrent to be routed on identical PCRF main frame, overcome the above-mentioned shortcoming of " data schema mode " and " DRA agent way ", implementation is succinct, efficient, enormously simplify maintenance work, improve the reliability of system.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. the method for binding session more than, is characterized in that, comprising:
The relevant information of the strategy that user terminal reception packet data network gateway PGW distributes when the IP setting up Gx interface for described user terminal connects Access Network IP-CAN session and charging regulation function entity PCRF;
Described user terminal sends invitation message to application server AF, wherein, carry the relevant information of described PCRF in described invitation message, indicating described AF when setting up Rx interface session for described user terminal, described PCRF being set to the destination host of authentication application message.
2. method according to claim 1, is characterized in that, after described user terminal receives the relevant information of described PCRF, described method also comprises:
Described user terminal is determined to need to set up the 2nd IP-CAN session;
The described PGW that the relevant information of described PCRF is sent by network by described user terminal, indicates described PGW when setting up described 2nd IP-CAN session, is set to described PCRF create the destination host controlling request CCR message.
3. method according to claim 2, is characterized in that, before the described PGW that the relevant information of described PCRF is sent by network by described user terminal, described method also comprises:
Described user terminal determines that described 2nd IP-CAN session is identical with the access point APN that a described IP-CAN session uses.
4. method according to claim 2, is characterized in that, the described PGW that the relevant information of described PCRF is sent by network comprises by described user terminal:
Described user terminal sends grouped data network PDN connection request message, wherein, carries the relevant information of described PCRF in described PDN connection request message;
Mobile management entity receives described PDN connection request message, sends and creates conversation request message, wherein, carry the relevant information of described PCRF in described establishment conversation request message;
Described establishment conversation request message is transmitted to described PGW by gateway SGW.
5. method according to any one of claim 1 to 4, is characterized in that, user terminal receives the relevant information of the PCRF that packet data network gateway PGW distributes when the IP setting up Gx interface for described user terminal connects Access Network IP-CAN session, comprising:
Packet data network gateway PGW receives establishment conversation request message, when a described IP-CAN session of setting up Gx interface, according to carrier policy, obtains the described PCRF of a described IP-CAN binding session;
The relevant information of described PCRF is carried to create in conversational response message and sends to gateway by described PGW, is transmitted to described user terminal by described gateway by mobile management entity.
6. method according to any one of claim 1 to 4, is characterized in that, the relevant information of described PCRF comprises: the host name of described PCRF.
7. method according to claim 6, is characterized in that, the relevant information of described PCRF also comprises: binding session is to the method for PCRF, and wherein, described binding session comprises to the method for PCRF: bind based on APN or bind based on user.
8. the device of binding session more than, is characterized in that, comprising:
Receiver module, for receiving the relevant information of the packet data network gateway PGW strategy that distributes and charging regulation function entity PCRF when the IP setting up Gx interface for user terminal connects Access Network IP-CAN session;
First sending module, for sending invitation message to application server AF, wherein, in described invitation message, carry the relevant information of described PCRF, indicating described AF when setting up Rx interface session for described user terminal, described PCRF being set to the destination host of authentication application message.
9. device according to claim 8, is characterized in that, described device also comprises:
First determination module, needs to set up the 2nd IP-CAN session for determining;
Second sending module, for the relevant information of described PCRF is sent to described PGW by network, indicates described PGW when setting up described 2nd IP-CAN session, is set to described PCRF create the destination host controlling request CCR message.
10. device according to claim 9, is characterized in that, described device also comprises:
Second determination module, for determining that described 2nd IP-CAN session is identical with the access point APN that a described IP-CAN session uses, triggers described second sending module.
The sending method of 11. 1 kinds of strategies and charging regulation function entity PCRF information, is characterized in that, comprising:
Packet data network gateway PGW, when the IP setting up Gx interface for user terminal connects Access Network IP-CAN session, is a described IP-CAN session allocation strategy and charging regulation function entity PCRF;
The relevant information of described PCRF, by network, is sent to described user terminal by described PGW.
12. methods according to claim 11, is characterized in that, described method also comprises:
Described PGW receives the request into described user terminal establishment the 2nd IP-CAN session, wherein, carries the relevant information of described PCRF in described request;
The described PCRF distributing to a described IP-CAN session is distributed to described 2nd IP-CAN session by described PGW.
13. methods according to claim 11 or 12, it is characterized in that, the relevant information of described PCRF comprises: the host name of described PCRF.
14. methods according to claim 13, is characterized in that, the relevant information of described PCRF also comprises: binding session is to the method for PCRF, and wherein, described binding session comprises to the method for PCRF: bind based on APN or bind based on user.
The dispensing device of 15. 1 kinds of strategies and charging regulation function entity PCRF information, is characterized in that, comprising:
Distribution module, during for connecting Access Network IP-CAN session at the IP setting up Gx interface for user terminal, is a described IP-CAN session allocation strategy and charging regulation function entity PCRF;
Sending module, for by network, sends to described user terminal by the relevant information of described PCRF.
16. devices according to claim 15, is characterized in that,
Also comprise: receiver module, creating the request of the 2nd IP-CAN session for being received as described user terminal, wherein, in described request, carrying the relevant information of described PCRF;
Described distribution module is also for distributing to described 2nd IP-CAN session by the described PCRF distributing to a described IP-CAN session.
17. 1 kinds of session establishing methods, is characterized in that, comprising:
Application server AF receives the invitation message that user terminal sends, and wherein, carries the relevant information of strategy and charging regulation function entity PCRF in described invitation message;
Described PCRF, when setting up Rx interface session for described user terminal, is set to the destination host of authentication application message by described AF.
18. 1 kinds of session establishment devices, is characterized in that, comprising:
Receiver module, for receiving the invitation message that user terminal sends, wherein, carries the relevant information of strategy and charging regulation function entity PCRF in described invitation message;
Module being set, for when setting up Rx interface session for described user terminal, described PCRF being set to the destination host of authentication application message.
More than 19. 1 kinds, binding session system, is characterized in that, comprising: user terminal, packet data network gateway PGW and application server AF, wherein,
Described PGW comprises the device described in claim 15 or 16;
Described user terminal comprises the device according to any one of claim 8 to 10;
Described AF comprises device according to claim 18.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410277546.1A CN105282775A (en) | 2014-06-19 | 2014-06-19 | Multi-session binding method, device and system |
| PCT/CN2014/089233 WO2015192568A1 (en) | 2014-06-19 | 2014-10-23 | Multisession binding method, device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410277546.1A CN105282775A (en) | 2014-06-19 | 2014-06-19 | Multi-session binding method, device and system |
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| CN109257353A (en) * | 2018-09-25 | 2019-01-22 | 京信通信系统（中国）有限公司 | Conversation managing method, apparatus and system |
| CN113438096A (en) * | 2020-03-23 | 2021-09-24 | 中国电信股份有限公司 | Method, system and application function entity for guaranteeing service quality |
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| CN111092728B (en) * | 2018-10-23 | 2022-08-02 | 中国电信股份有限公司 | User addressing method, addressing platform and strategy issuing system |
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