CN102340889A - Method and system for initiating establishment of internet protocol (IP) multimedia core network system (IMS) signaling bearing by network side - Google Patents
Method and system for initiating establishment of internet protocol (IP) multimedia core network system (IMS) signaling bearing by network side Download PDFInfo
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Abstract
The invention discloses a method and a system for initiating the establishment of an internet protocol (IP) multimedia core network system (IMS) bearing, and fulfills the aims that policy and control enforcement function/bearer binding and event reporting function (PCEF/BBERF) acquires an IMS signaling instruction and then the IMS signaling bearing is established when a policy and charging rules function (PCRF) explicitly initiate the establishment of the IMS signaling bearing. The method comprises the following steps that: a PCRF sends a request message in which bearer-usage AVP is carried to a bearer binding function, wherein the bearer-usage AVP is used for informing the bearer binding function that a bearing corresponding to current service is the IMS signaling bearing; and the bearer binding function acquires the bearer-usage AVP and then establishes the IMS signaling bearing for the current service. By the method and the system, the flow of explicitly triggering the establishment of the IMS signaling bearing by the PCRF under a policy and charging control (PCC) framework is realized, and the technical problem that the PCEF/BBERF cannot definitely acquire the IMS signaling bearing establishment instruction to establish the IMS signaling bearing in the prior art is solved.
Description
Technical field
The present invention relates to wireless communication technology; Relate in particular to a kind of EPS (Evolved Packet System; The grouping system of evolution) network side is initiated in IP Multimedia System (IP Multimedia Core NetworkSubsystem, IMS) method for building up of signaling bear and system.
Background technology
As shown in Figure 1; 3GPP (3rd Generation Partnership Project; Third generation partner program) evolved packet system is by UMTS land radio access web (the EvolvedUniversal Terrestrial Radio Access Network of evolution; E-UTRAN), mobile management unit (MobilityManagement Entity; MME), gateway (Serving Gateway; S-GW), grouped data network gateway (Packet Data Network Gateway, PDN GW or P-GW), home subscriber server (Home Subscriber Server, HSS), authentication and authorization charging (Authentication, the Authorization and Accounting of 3GPP; AAA) server, "Policy and Charging Rules Function (Policy andCharging Rules Function, PCRF) and other support node form.
Wherein, MME is used for the chain of command related work such as processing and the contextual management of user's mobile management of mobile management, Non-Access Stratum signaling; S-GW is the accessing gateway equipment that links to each other with E-UTRAN, between E-UTRAN and P-GW, transmits data, and is used for pending datas such as paging are carried out buffer memory; P-GW then is the borde gateway of EPS and PDN, and the access that is used for PDN reaches functions such as between EPS and PDN, transmitting data.
EPS supports the intercommunication with non-3 GPP system.Realize that through S2a, S2b, S2c interface P-GW is as the anchor point between 3GPP system and the non-3 GPP system with the intercommunication of non-3 GPP system.Wherein, non-3 GPP system is divided into the non-3GPP connecting system of trusted and trustless non-3GPP connecting system.The non-3GPP connecting system of trusted can directly be connected with P-GW through the S2a interface; Trustless non-3GPP connecting system need pass through the packet data gateway of evolution, and (Evolved Packet Data Gateway ePDG) links to each other with P-GW, is the S2b interface between ePDG and the P-GW.The S2c interface provides subscriber equipment (UserEquipment; UE) with P-GW between relevant control and the mobility support of user plane; The mobility management protocol of supporting for the mobile IP v 6 of supporting two stacks (Moblie IPv6 support for dual stack Hosts andRouters, DSMIPv6).
The EPS system introduces policy and charging control, and (Policy and Charging Control, PCC) functional framework carries out dynamic policy and charging control to user's Operational Visit.Below each logical functional entity and interface function thereof in the non-roaming scene framework of the Rel-8PCC shown in Fig. 2 A are described.
(Application Function AF) is used to provide the access point of service application to application function, and the employed Internet resources of these service application need carry out dynamic policy control.When service surface was carried out parameter negotiation, AF passed to PCRF with related service information.If these business information and PCRF's is tactful consistent, then PCRF accepts and should consult; Otherwise the PCRF refusal should be consulted, and when feedback, provided the acceptable service parameter of PCRF.Subsequently, AF can with these parameters return to subscriber equipment (User Equipment, UE).Wherein, the interface between AF and the PCRF is a Rx interface.
PCRF is the core of PCC, is responsible for the formulation of strategic decision-making and charging regulation.PCRF provides based on the network control of business data flow rule, and these network controls comprise detection, gate (Gating Control), service quality (Quality of Service, QoS) control and based on the charging regulation of data flow etc. of business data flow.PCRF sends to strategy and charge execution function (Policy and Control Enforcement Function, PCEF) execution with the strategy and the charging regulation of its formulation; Simultaneously, PCRF need guarantee that also these rules are consistent with user's CAMEL-Subscription-Information.PCRF generates strategy and comprises with the foundation of charging regulation: from AF obtain with professional relevant information, (Subscription ProfileRepository SPR) obtains the CAMEL-Subscription-Information relevant with user policy, billing control, that obtain from PCEF through the Gx interface and the information carrying network of relation from user-subscribed database.
PCEF be usually located at gateway (Gate-Way, GW) in, carry out strategy and the charging regulation that PCRF formulated at loading end.PCEF detects business data flow according to the business datum flow filter in the rule that PCRF sent, and then these business data flows are carried out strategy and the charging regulation that PCRF formulated.When carrying was set up, the rule that PCEF sends according to PCRF was carried out the QoS mandate, and carried out gate control according to the execution of AF.Simultaneously, PCEF triggers according to the PCRF events subscribed and reports event on the bearer network.According to the charging regulation that PCRF sends, PCEF carries out corresponding business data flow billing operation, and chargeing both can be online charging, also can be offline charging.If online charging, then (Online Charging System OCS) carries out credit management together for PCEF needs and Online Charging System.During offline charging, PCEF and off-line accounting system (Offline Charging System, OFCS) between the charge information of exchange correlation.Interface between PCEF and the PCRF is the Gx interface, and the interface between the OCS is the Gy interface, and the interface between the OFCS is the Gz interface.PCEF generally is positioned on the gateway of network; Grouped data network gateway (PDN-GW), GPRS (General Packet Radio Service like EPS; GPRS) GGSN in (GGSN) and I-WLAN (Interworking WLAN; Packet data gateway interconnected wireless network local area network (LAN)) (Packet DataGateway, PDG).
BBERF (Bearer Binding and Event Reporting Function, bearing binding and event reporting function) is usually located in the Access Network gateway (Access Network Gateway).As inserting when adopting PMIPv6 (Proxy MobileInternet Protocol version 6, proxy mobile internet protocol version 6) agreement between EPS, gateway S-GW and the P-GW through E-UTRAN, just there is BBERF among the S-GW when subscriber equipment.When subscriber equipment inserted through the trusted non-3 GPP access network, also there was BBERF in the trusted non-3 GPP access network Central Shanxi Plain.
User-subscribed database (SPR) has been stored and the policy control and the relevant user policy, billing control and subscription information that charges.Interface between SPR and the PCRF is the Sp interface.
Online Charging System (OCS) and PCEF carry out the control and the management of user credit under the online charging mode together.Off-line accounting system (OFCS) is accomplished the billing operation under the offline charging mode with PCEF.
IMS is the core of communication network of new generation.Network element entity relevant with the present invention in the IMS architecture is: subscriber equipment (User Equipment; UE) terminal equipment of representative of consumer use; CSCF (Call Session Control Function; CSCF) be control conversation procedure core network element, relate to here Proxy Call Session Control Function (Proxy-CSCF, P-CSCF).P-CSCF is linked into the entrance network element of IMS system as the user, and (Session Initiation Protocol, SIP) no matter signaling still issues UE from UE to all session initiation protocols, all must be through P-CSCF.When UE after IMS network registry success, P-CSCF preserve in this locality the contact address of UE, the public user identity of UE (Public UserIdentity, PUI), the private user identity of UE (Private User Identity, PVI).At the UE of IMS network registry, EUTRAN is attached to can be connected with P-CSCF through PCRF behind the EPS network and is linked into the IMS network.When UE is attached on the network, can set up default bearing, general default bearing (for example: the IMS signaling), and be that proprietary carrying is set up in data service is used for carrier signaling; But also have operator to propose, for the transmission that guarantees the IMS signaling is guaranteed, need set up special IMS signaling bear for the IMS signaling, this default bearing cannot transmit other data flow.
In the prior art, the mode of setting up of IMS signaling bear has 2 kinds: 1, UE is adhering to when setting up default bearing, can specify default carries and be used to carry the IMS signaling; If 2 UE do not specify when setting up default bearing, follow-up UE can also be initiated as the IMS signaling and set up dedicated bearing foundation; Concrete grammar does; UE passes through protocol configuration option (Protocol Configuration Options in creating bearing request message; PCO) IM CN subsystem signaling mark (IP multimedia core networksubsystem signaling Flag) is set; Specify this carrying to be specifically designed to the IMS signaling, then this is carried as the IMS signaling bear, cannot transmit other data flow.Then PCEF can (Credit Control Request be with to carry to use in CCR) to identify (Bearer-Usage AVP), informs that this carrying of PCRF is specifically designed to the IMS signaling giving the credit control request information of PCRF.PCRF can be at Credit Control Answer (Credit ControlAnswer; CCA) reply PCEF in and should carry whether be exclusively used in the IMS signaling, use sign to confirm that then this is carried as the IMS signaling bear, do not use sign if do not carry this carrying if carry this carrying in the Credit Control Answer message; Then can issue relevant PCC rule; And should carry except transmission IMS signaling flow, also can be used for the transmission of other data flow, for example as the transmission of common default bearing.
In the current demand, the proprietary signaling bear of IMS that requires to initiate, also need the foundation of the proprietary signaling bear of IMS of network enabled side initiation except UE.Prior art can realize initiating dedicated bearing foundation by network side, and (the PCRF distributing policy is indicated to BBERF/PCEF and is set up dedicated bearing; BBERF/PCEF issues carrier signaling establishment request to the side of eating dishes without rice or wine and initiates to carry foundation); For the IMS signaling bear; Only can identify (Qos Class Identifier through the special service quality classification that issues of implicit expression; QCI) and distribute and hold priority (Allocation and Retention Priority, ARP) mode triggers PCEF/BBERF and sets up the IMS signaling bear, can't explicit appointment set up proprietary IMS signaling bear.Receive the business information request resource (IMS is professional) of AF as PCRF; Or the SPR subscription information update is when (signing service needs the IMS signaling bear); If there is not the IMS signaling bear before this; Then need set up proprietary signaling bear (for example :) for the IMS signaling based on operator's configuration or signatory; If the user is when roaming scence and the ownership place operator different with visit ground ownership or same operator have different operation strategy (using or self-defined ARP disunity like QCI), then current mechanism can't realize.In addition, for strengthening multimedia priority business (enhancements for multimedia priority service, eMPS) demand; Has higher ARP; The IMS signaling bear that promptly carries the eMPS traffic signaling needs higher ARP, if then not relevant before this IMS signaling bear, and the up message of original UE is sent from common default bearing; And all data flow ARP that promote this default bearing simultaneously satisfy the service management requirement that newly-increased eMPS signaling flow does not meet operator; For example the stream of the blended data in this carrying possibly comprise relatively low QoS, if promoted the ARP of this carrying, then can have influence on other priority business; Therefore, need the network side support to initiate proprietary IMS signaling bear function.Need PCRF to initiate to set up the business scenario of IMS signaling dedicated bearer to this type, prior art all can only rely on the PCRF implicit expression mode of issuing to trigger, and can't realize this carrying foundation of explicit triggering.
Concluding above problem can find out, when needs were initiated the IMS signaling bear by PCRF, prior art PCEF/BBERF can't clearly obtain this indication, carries out the processing of respective carrier.This also is a problem to be solved by this invention.
Summary of the invention
In view of this; Main purpose of the present invention is to provide a kind of IMS carrying establishing method and system of network side initiation; Be used to solve the explicit initiation of PCRF when setting up the IMS signaling bear, PCEF/BBERF obtains the indication of IMS signaling, and then sets up the technical problem of IMS signaling bear.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of network side is initiated IMS and is carried the method for setting up, and comprising:
"Policy and Charging Rules Function (PCRF) sends to carry to carry and uses the request message that identifies to give strategy and charge execution function (PCEF) or bearing binding and event reporting function (BBERF); Said carrying use sign be used to inform PCEF or BBERF current business corresponding be carried as the IMS signaling bear.
PCEF or BBERF use sign to set up IP Multimedia System (IMS) signaling bear according to the carrying of obtaining.
Further, under roaming scence, visit the territory if PCEF or BBERF are positioned at, then ownership place PCRF at first carries said carrying of the request message that uses sign PCRF with sending to visit, by visit ground PCRF it is transmitted to said PCEF or BBERF again.
If the bearing binding function resides among the PCEF, then described request message is IP connected reference network (IP-CAN) session modification request message, after PCEF receives described request message, upgrades corresponding PCC rule, and sets up the IMS signaling bear for current I MS business;
If the bearing binding function resides among the BBERF, then described request message is that gateway control and service quality (QoS) rule provide request message, after BBERF receives described request message, for current I MS business is set up the IMS signaling bear; Said PCRF also issues the IP-CAN session modification request synchronously and gives PCEF, and PCEF upgrades corresponding policy and charging control (PCC) rule.
Further, said PCEF or BBERF obtain to carry and use sign then to set up the IMS signaling bear as current business to be specially:
After said PCEF or BBERF receive described request message; Use sign to know that the current business needs set up the IMS signaling bear according to said carrying; When determining the user, said PCEF or BBERF do not have the IMS signaling bear at present; Then be the professional newly-built IMS signaling bear of current I MS, and carry out the respective carrier binding function.
Further, triggering said PCRF sends and carries the incident of carrying the request message that uses sign and be:
PCRF receives the stream information of Proxy Call Session Control Function (P-CSCF)/application function (AF); Or subscriber equipment (UE) is attached to network and do not initiate any up-downgoing IMS as yet when professional, and user-subscribed database (SPR) detects CAMEL-Subscription-Information change has taken place, and initiates the subscription information update flow process to PCRF.
Based on said method, the present invention also proposes a kind of network side and initiates the system that IMS carries foundation, and this system comprises:
PCRF is used to send and carries the request message that carry to use sign and give the bearing binding function, said carrying use sign be used to inform bearing binding function current business corresponding be carried as the IMS signaling bear;
The bearing binding function is positioned at PCEF or BBERF, is used for using sign then to set up the IMS signaling bear as current business obtaining to carry.
Further, under roaming scence, visit the territory if said bearing binding function is positioned at, then ownership place PCRF at first carries said carrying of the request message that uses sign PCRF with sending to visit, by visit ground PCRF it is transmitted to said bearing binding function again.
Further, if the bearing binding function resides among the PCEF, then described request message is IP-CAN session modification request message; If the bearing binding function resides among the BBERF, then described request message is that gateway control and QoS rule provide request message; After said bearing binding function receives described request message; Use sign to know that the current business needs set up the IMS signaling bear according to said carrying; When determining the user, said bearing binding function do not have the IMS signaling bear at present; Then be the professional newly-built IMS signaling bear of current I MS, and carry out the respective carrier binding function.
Further, triggering said PCRF sends and carries the incident of carrying the request message that uses sign and be:
PCRF receives the stream information of P-CSCF/AF; Or UE is attached to network and do not initiate any up-downgoing IMS as yet when professional, and user-subscribed database detects CAMEL-Subscription-Information change has taken place, and initiates the subscription information update flow process to PCRF.
The present invention realized under the PCC framework, and the flow process that the explicit triggering of PCRF IMS signaling bear is set up has solved in the prior art PCEF/BBERF and can't clearly obtain the IMS signaling bear and set up indication, sets up the technical problem of IMS signaling bear.
Description of drawings
Fig. 1 is the non-roaming Organization Chart of EPS;
Fig. 2 A carries out the system architecture diagram that the IMS signaling bear is set up under the non-roaming scene;
Fig. 2 B carries out the system architecture diagram that the IMS signaling bear is set up under the ownership place access roaming scene;
Fig. 2 C is for carrying out the system architecture diagram that the IMS signaling bear is set up under the visit ground access roaming scene;
Fig. 3 is the flow chart (AF triggering) of the embodiment of the invention one BBF at PCEF;
Fig. 4 is the flow chart (SPR triggering) of the embodiment of the invention one BBF at PCEF;
Fig. 5 is the flow charts (AF triggering) of the embodiment of the invention two BBF at BBERF;
Fig. 6 is the flow charts (SRP triggering) of the embodiment of the invention two BBF at BBERF.
Embodiment
IMS carrying establishing method and system that the present invention provides a kind of network side to initiate; These method and system are used to be implemented under the PCC framework; Issue the carrying that is used to set up the IMS signaling bear and use sign to give bearing binding function (Bearer Binding Function by PCRF is explicit; BBF), the bearing binding function is set up the IMS signaling bear after obtaining and carrying the use sign.
Under the PCC framework, the bearing binding function that is used to set up the IMS signaling bear resides in PCEF (being the GTP agreement between S-GW and the P-GW) or BBERF (being the PMIP agreement between S-GW and the S-GW) respectively.When BBF resides in PCEF, then PCRF issues request message (IP-CAN session modification) and gives PCEF, and in request message, carries indication and set up the carrying of IMS signaling bear and use sign, the newly-built IMS signaling bear of indication PCEF; When BBF resides in BBERF; Then PCRF issues request message (rule provides) and gives BBERF; And in request message, carry and indicate the carrying of setting up the IMS signaling bear to use sign; The newly-built IMS signaling bear of indication BBERF, and issue request message (IP-CAN session modification) synchronously to PCEF, update rule.
When for the roaming framework; If PCEF and/or BBERF are on visit ground; Then ownership place PCRF need use the S9 interface that identifies through between ownership place PCRF and the visit ground PCRF to be handed down to visit ground PCRF said carrying, again by visiting ground PCRF with forwarding visit ground PCEF/BBERF before it to.
Fig. 2 B realizes the system architecture diagram that the IMS signaling bear is set up under the ownership place access roaming scene; Under this framework; PCEF is arranged in belonging area network, and BBERF is arranged in the roaming place network, if BBF is arranged in BBERF; Then ownership place PCRF needs to carry and uses sign to be handed down to visit ground PCRF through the S9 interface between ownership place PCRF and the visit ground PCRF, again by visit ground PCRF with BBERF with forwarding visit before it to.
Fig. 2 C is for carrying out the system architecture diagram that the IMS signaling bear is set up under the visit ground access roaming scene; Under this framework; PCEF/BBERF is arranged in the roaming place network; Ownership place PCRF needs to carry and uses sign to be handed down to visit ground PCRF through the S9 interface between ownership place PCRF and the visit ground PCRF, again by visit ground PCRF with PCEF/BBERF with forwarding visit before it to.
For making the object of the invention, technical scheme and advantage clearer, below lift embodiment and with reference to accompanying drawing, to further explain of the present invention.
Embodiment one
In the IMS carrying establishing method of Fig. 3 for network side initiation of the present invention, PCEF (GTP-based S5/S8) carries out the method flow diagram that the IMS signaling bear is created and bound, and each step is described below:
Step 301:P-CSCF receives SIP Invite message;
SIP Invite message is the initiation message of IMS territory when setting up the SIP session, is that certain session originating end in IMS territory sends.Can be used for consulting the foundation of SIP session with information such as relevant IP that goes up originating end self and ports in this message with the opposite end.
Step 302:P-CSCF provides related service information for ownership place "Policy and Charging Rules Function entity (H-PCRF), and H-PCRF stores this business information, and returns response message to P-CSCF;
Step 303:H-PCRF carries out corresponding mandate and strategic decision-making, and discovery should business be that IMS is professional, and this user do not have the IMS signaling bear at present, then need issue indication and make respective carrier and handle, and should carry as setting up;
Step 304:H-PCRF issues request message to PCEF; Described request message is specially IP connected reference network (IP-Connectivity Access Network; IP-CAN) session modification request message; In this request message, carry clear and definite IMS signaling sign (using sign or application function agreement) as carrying carry use sign, said carrying use sign be used to inform PCEF should business corresponding be carried as the IMS signaling bear; Described request message adopts re-authorization application (Re-Authorization-Request, RAR) message format in the Diameter.
After step 305:PCEF receives said modification IP-CAN conversation request message, carry out the PCC rule that PCRF issues.
PCEF uses sign to know that the current business needs set up the IMS signaling bear according to said carrying, if PCEF determines this user and do not have the IMS signaling bear at present, then be the professional newly-built IMS signaling bear of this IMS, and execution respective carrier binding function;
Step 306:PCEF returns IP-CAN session modification response message and gives H-PCRF;
Step 307:PCEF issues relevant IP-CAN signaling request message (like the load creating request), carries out respective carrier and sets up processing.
Concrete downstream network element is after receiving said load creating request, and the process of carrying out corresponding IMS signaling bear foundation is a prior art, repeats no more here.
Step 308:PCEF receives corresponding IP-CAN signaling response message, sets up to the professional IMS signaling bear of this IMS to finish.
If roaming scence; And PCEF is on visit ground; Then H-PCRF will issue IP-CAN session modification request message and give visit ground PCRF (V-PCRF), and carry the above carrying and use sign through S9 interface (S9 session or sub-session) in 304 steps; Change the IP-CAN session modification request before the V-PCRF and give PCEF, triggering PCEF does respective carrier foundation and handles.
More than trigger the processing of load creating for PCRF receives the stream information of P-CSCF/AF; In addition, when UE is attached to network and does not initiate any up-downgoing IMS as yet when professional, when user-subscribed database SPR detects CAMEL-Subscription-Information change has taken place; Need be to the professional newly-built IMS signaling bear of user of this signatory IMS; Then can initiate the subscription information update flow process to PCRF, as shown in Figure 4, each step is described below:
Step 401:SPR detect CAMEL-Subscription-Information taken place change (as, find that the user IMS that contracted is professional), then need the variation of CAMEL-Subscription-Information be updated to PCRF synchronously;
Step 402:SPR provides the subscription information update request to H-PCRF, sends relevant information and gives H-PCRF, and H-PCRF returns response and gives SPR, and upgrades local CAMEL-Subscription-Information.
Step 403:PCRF carries out corresponding mandate and strategic decision-making; Find that this user is the IMS subscription user or has contracted certain type of IMS business; Need set up the IMS signaling bear for this user; And this user does not have the IMS signaling bear at present, then need issue to carry to use the sign indication to do the respective carrier processing, should carry as setting up;
Step 404:H-PCRF issues IP-CAN session modification request message to PCEF; In this request message, carry clear and definite IMS signaling sign (as carrying use sign or application function agreement) and carry and use sign, said carrying use sign is used to inform that PCEF should the corresponding carrying of business be specifically designed to the IMS signaling;
After step 405:PCEF receives IP-CAN session modification request message, carry out corresponding decision.
PCEF uses sign to know that the current business needs set up the IMS signaling bear according to said carrying, if PCEF determines this user and do not have the IMS signaling bear at present, then be the professional newly-built IMS signaling bear of this IMS, and execution respective carrier binding function;
Step 406:PCEF returns IP-CAN session modification response message and gives H-PCRF;
Step 407:PCEF issues relevant IP-CAN signaling request message (like the load creating request), carries out respective carrier and sets up processing;
Step 408:PCEF receives corresponding IP-CAN signaling response message.
If roaming scence; And PCEF is on visit ground; Then H-PCRF will issue IP-CAN session modification request message and give V-PCRF through S9 interface (S9 session or sub-session) in 404 steps, carries in the request message to carry and uses sign; Change the IP-CAN session modification request before the V-PCRF and give PCEF, triggering PCEF does respective carrier foundation and handles.
Through above-mentioned flow process, then PCRF carries to carry in request message and uses sign to give PCEF through issuing request message, has triggered the foundation of IMS signaling bear.
Embodiment two
In the IMS carrying establishing method of Fig. 5 for network side initiation of the present invention, BBERF (PMIP-basedS5/S8) carries out the method flow diagram of load creating and binding, and each step is described below:
Step 501:P-CSCF receives SIP Invite message;
Step 502:P-CSCF provides related service information to H-PCRF, and H-PCRF stores this business information, and returns response message to P-CSCF;
Step 503:H-PCRF carries out corresponding mandate and strategic decision-making, and discovery should business be that IMS is professional, and this user do not have the IMS signaling bear at present, then need issue indication and make respective carrier and handle, and should carry as setting up;
Step 504:H-PCRF issues request message to BBERF; Described request message is specially gateway control and the QoS rule provides request message; Said rule provides carries clear and definite carrying and uses sign IMS signaling sign (using sign or application function agreement as carrying) in the request message, said carrying use sign be used to inform BBERF should business corresponding be carried as the IMS signaling bear;
Step 505:BBERF carries out handled after receiving that gateway control that H-PCRF issues and QoS rule provide request message.
BBERF uses sign to know that the current business needs set up the IMS signaling bear according to said carrying; If BBERF judges that this user does not have the IMS signaling bear at present; It then is the professional newly-built IMS signaling bear of this IMS; Carry out the respective carrier binding function, and issue relevant IP-CAN carrier signaling request message (like the load creating request), carry out respective carrier and set up processing;
Step 506:BBERF receives corresponding IP-CAN carrier signaling response.
Step 507:BBERF returns response message that gateway control and QoS rule provide request message to H-PCRF;
Step 508:H-PCRF issues request message to PCEF, revises the IP-CAN session;
After step 509:PCEF receives this IP-CAN conversation request, carry out the PCC rule that corresponding PCRF issues;
Step 510:PCEF returns IP-CAN session modification response message and gives H-PCRF;
If roaming scence; Then H-PCRF will be through S9 interface (S9 session or sub-session) in 504 steps; Issue gateway control and the QoS rule provides request message to V-PCRF; Carry and carry the use sign, V-PCRF this gateway control of preceding commentaries on classics and QoS rule provide request to BBERF, trigger BBERF and do respective carrier foundation and bind processing.If PCEF is on visit ground, then session modification request and response message need V-PCRF to pass through the transfer of S9 interface equally.
More than trigger the processing of load creating for PCRF receives the stream information of PCSCF/AF; In addition, when UE is attached to network and does not initiate any up-downgoing IMS as yet when professional, when SPR detects CAMEL-Subscription-Information change has taken place; Need be to the professional newly-built IMS signaling bear of user of this signatory IMS; Then can look like PCRF and initiate the subscription information update flow process, as shown in Figure 6, each step is described below:
Step 601:SPR detects CAMEL-Subscription-Information change has taken place, and the user IMS that contracted is professional, need the variation of CAMEL-Subscription-Information be updated to PCRF synchronously;
Step 602:SPR provides the subscription information update request to H-PCRF, sends relevant information and gives H-PCRF, and H-PCRF returns response and gives SPR, and upgrades local CAMEL-Subscription-Information.
Step 603:PCRF carries out corresponding mandate and strategic decision-making; Find that this user is the IMS subscription user or has contracted certain type of IMS business; Need set up the IMS signaling bear for this user; And this user does not have the IMS signaling bear at present, then need issue to carry to use the sign indication to do the respective carrier processing, should carry as setting up;
Step 604:H-PCRF issues gateway control to BBERF and the QoS rule provides request message; Carry clear and definite carrying in the request message and use sign IMS signaling sign (using sign or application function agreement as carrying), said carrying uses sign to be used to inform that BBERF should the corresponding carrying of business be specifically designed to the IMS signaling;
After step 605:BBERF receives the request message that H-PCRF issues, carry out handled.Judge that this user does not have the IMS signaling bear at present, then be the professional newly-built IMS signaling bear of this IMS, and carry out the respective carrier binding function; And issue relevant IP-CAN carrier signaling request message (like the load creating request), carry out respective carrier and set up processing;
Step 606:BBERF receives corresponding IP-CAN carrier signaling response.
Step 607:BBERF returns response message that gateway control and QoS rule provide request message to H-PCRF;
Step 608:H-PCRF issues request message to PCEF, revises the IP-CAN session;
After step 609:PCEF receives this IP-CAN conversation request, carry out corresponding decision;
Step 610:PCEF returns IP-CAN session modification response message and gives H-PCRF;
If roaming scence; Then H-PCRF will be through S9 interface (S9 session or sub-session) in 604 steps; Issue gateway control and the QoS rule provides request message to V-PCRF; Carry and carry the use sign, change described request message before the V-PCRF and give BBERF, triggering BBERF makes respective carrier and sets up and bind and handle.If PCEF is on visit ground, then IP-CAN session modification request in the step 608 and 610 and response message need V-PCRF to pass through the transfer of S9 interface equally.
Through above-mentioned flow process, then PCRF carries to carry in this message and uses sign to give BBERF through issuing request message, has triggered the foundation of IMS signaling bear.
Embodiment three: system embodiment
Network side based on the foregoing description proposes is initiated the method that IMS carries foundation; This embodiment correspondingly proposes network side and initiates the system that IMS carries foundation; This system based on network configuration shown in Fig. 2 A, Fig. 2 B and Fig. 2 C, this system mainly comprises: PCRF and bearing binding function;
Said PCRF is used to send and carries the request message that carry to use sign and give the bearing binding function, said carrying use sign be used to inform bearing binding function current business corresponding be carried as the IMS signaling bear;
Said bearing binding function is used for using sign then to set up the IMS signaling bear as current business obtaining to carry.
Bearing binding function of the present invention is arranged in PCEF or BBERF; If the bearing binding function resides among the PCEF; Then described request message is IP-CAN session modification request message, and PCEF carries out the PCC rule that PCRF issues through this message after receiving IP-CAN session modification request message, if PCEF determines this user and do not have the IMS signaling bear at present; Then be the professional newly-built IMS signaling bear of this IMS, and carry out the respective carrier binding function.
If the bearing binding function resides among the BBERF; Then described request message is that gateway control and QoS rule provide request message; After BBERF receives that gateway control that PCRF issues and QoS rule provide request message, use sign to know that the current business needs set up the IMS signaling bear, when determining the active user when not having the IMS signaling bear at present according to the carrying of carrying; Then be the professional newly-built IMS signaling bear of this IMS, carry out the respective carrier binding function; PCRF issues the PCC rule through the IP-CAN session modification request to PCEF simultaneously, and PCEF carries out said PCC rule.
If under non-roaming scene, the PCRF of ownership place directly will carry to carry and use the request message of sign to send to the bearing binding function that is positioned at ownership place; When in roaming scence following time; If said bearing binding function is positioned at the visit territory; Then ownership place PCRF at first carries said carrying of the request message that uses sign PCRF through the S9 interface with sending to visit, by visit ground PCRF it is transmitted to said bearing binding function again.
Triggering said PCRF sends and carry the incident of carrying the request message that uses sign and can be: PCRF receives the stream information of P-CSCF/AF; Or UE is attached to network and do not initiate any up-downgoing IMS as yet when professional, and user-subscribed database detects CAMEL-Subscription-Information change has taken place, and initiates the subscription information update flow process to PCRF.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (10)
1. a network side is initiated the method that IMS carries foundation, it is characterized in that, comprising:
"Policy and Charging Rules Function (PCRF) sends to carry to carry and uses the request message that identifies to give strategy and charge execution function (PCEF) or bearing binding and event reporting function (BBERF);
PCEF or BBERF use sign to set up IP Multimedia System (IMS) signaling bear according to the carrying of obtaining.
2. method according to claim 1 is characterized in that, said carrying use sign be used to inform PCEF or BBERF current business corresponding be carried as the IMS signaling bear.
3. method according to claim 1; It is characterized in that; Under roaming scence; Visit the territory if PCEF or BBERF are positioned at, then ownership place PCRF at first carries said carrying of the request message that uses sign PCRF with sending to visit, by visit ground PCRF it is transmitted to said PCEF or BBERF again.
4. method according to claim 1 is characterized in that,
If the bearing binding function resides among the PCEF, then described request message is IP connected reference network (IP-CAN) session modification request message, after PCEF receives described request message, upgrades corresponding PCC rule, and sets up the IMS signaling bear for current I MS business;
If the bearing binding function resides among the BBERF, then described request message is that gateway control and service quality (QoS) rule provide request message, after BBERF receives described request message, for current I MS business is set up the IMS signaling bear; Said PCRF also issues the IP-CAN session modification request synchronously and gives PCEF, and PCEF upgrades corresponding policy and charging control (PCC) rule.
5. method according to claim 1 is characterized in that, said PCEF or BBERF obtain to carry and use sign then to set up the IMS signaling bear as current business to be specially:
After said PCEF or BBERF receive described request message; Use sign to know that the current business needs set up the IMS signaling bear according to said carrying; When determining the user, said PCEF or BBERF do not have the IMS signaling bear at present; Then be the professional newly-built IMS signaling bear of current I MS, and carry out the respective carrier binding function.
6. method according to claim 1 is characterized in that, triggers said PCRF and sends and carry the incident of carrying the request message that uses sign and be:
PCRF receives the stream information of Proxy Call Session Control Function (P-CSCF)/application function (AF); Or subscriber equipment (UE) is attached to network and do not initiate any up-downgoing IMS as yet when professional, and user-subscribed database (SPR) detects CAMEL-Subscription-Information change has taken place, and initiates the subscription information update flow process to PCRF.
7. a network side is initiated the system that IMS carries foundation, it is characterized in that this system comprises:
PCRF is used to send and carries the request message that carry to use sign and give the bearing binding function, said carrying use sign be used to inform bearing binding function current business corresponding be carried as the IMS signaling bear;
The bearing binding function is positioned at PCEF or BBERF, is used for using sign then to set up the IMS signaling bear as current business obtaining to carry.
8. system according to claim 7; It is characterized in that; Under roaming scence; Visit the territory if said bearing binding function is positioned at, then ownership place PCRF at first carries said carrying of the request message that uses sign PCRF with sending to visit, by visit ground PCRF it is transmitted to said bearing binding function again.
9. system according to claim 7 is characterized in that,
If the bearing binding function resides among the PCEF, then described request message is IP-CAN session modification request message; If the bearing binding function resides among the BBERF, then described request message is that gateway control and QoS rule provide request message;
After said bearing binding function receives described request message; Use sign to know that the current business needs set up the IMS signaling bear according to said carrying; When determining the user, said bearing binding function do not have the IMS signaling bear at present; Then be the professional newly-built IMS signaling bear of current I MS, and carry out the respective carrier binding function.
10. system according to claim 7 is characterized in that, triggers said PCRF and sends and carry the incident of carrying the request message that uses sign and be:
PCRF receives the stream information of P-CSCF/AF; Or
UE is attached to network and does not initiate any up-downgoing IMS as yet when professional, and user-subscribed database detects CAMEL-Subscription-Information change has taken place, and initiates the subscription information update flow process to PCRF.
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| CN201010239307.9A CN102340889B (en) | 2010-07-26 | A kind of network side initiates the method and system that IMS signaling bear is set up |
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| CN201010239307.9A CN102340889B (en) | 2010-07-26 | A kind of network side initiates the method and system that IMS signaling bear is set up |
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| CN102340889A true CN102340889A (en) | 2012-02-01 |
| CN102340889B CN102340889B (en) | 2016-12-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103974227A (en) * | 2013-01-31 | 2014-08-06 | 中国电信股份有限公司 | Method, device and system for inquiring QoS (quality of service) contracting information |
| WO2016206071A1 (en) * | 2015-06-26 | 2016-12-29 | 华为技术有限公司 | Bearer binding method and associated equipment |
| CN110035040A (en) * | 2018-01-12 | 2019-07-19 | 中国移动通信有限公司研究院 | A kind of method and apparatus of signaling addressing |
| CN112469114A (en) * | 2019-09-09 | 2021-03-09 | 成都鼎桥通信技术有限公司 | Session Initiation Protocol (SIP) registration method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087248A (en) * | 2006-06-23 | 2007-12-12 | 中兴通讯股份有限公司 | Method for originating carrier establishment based on network side of session service |
| CN101232433A (en) * | 2007-01-25 | 2008-07-30 | 华为技术有限公司 | Signaling bear establishing method as well as apparatus and system for establishing signaling bear |
| WO2009025600A1 (en) * | 2007-08-23 | 2009-02-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for simple retrieval of network access selection information. |
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087248A (en) * | 2006-06-23 | 2007-12-12 | 中兴通讯股份有限公司 | Method for originating carrier establishment based on network side of session service |
| CN101232433A (en) * | 2007-01-25 | 2008-07-30 | 华为技术有限公司 | Signaling bear establishing method as well as apparatus and system for establishing signaling bear |
| WO2009025600A1 (en) * | 2007-08-23 | 2009-02-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for simple retrieval of network access selection information. |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103974227A (en) * | 2013-01-31 | 2014-08-06 | 中国电信股份有限公司 | Method, device and system for inquiring QoS (quality of service) contracting information |
| WO2016206071A1 (en) * | 2015-06-26 | 2016-12-29 | 华为技术有限公司 | Bearer binding method and associated equipment |
| CN110035040A (en) * | 2018-01-12 | 2019-07-19 | 中国移动通信有限公司研究院 | A kind of method and apparatus of signaling addressing |
| CN110035040B (en) * | 2018-01-12 | 2021-11-16 | 中国移动通信有限公司研究院 | Method and device for signaling addressing |
| CN112469114A (en) * | 2019-09-09 | 2021-03-09 | 成都鼎桥通信技术有限公司 | Session Initiation Protocol (SIP) registration method and device |
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