CN101160799A - Fringe or packet gateway control system and control method thereof - Google Patents
Fringe or packet gateway control system and control method thereof Download PDFInfo
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Abstract
The present invention discloses an edge or grouping gateway control system which includes a service control unit, a resource control unit and an intercommunication executing unit, meanwhile the invention also discloses a method for controlling the edge or grouping gateway. By the plane of the invention the service control information which is obtained by the intercommunication executing unit in charge of the present intercommunication service and comes from the service control unit synthesizes the request of the IP network intercommunication request, the real-time network resource information and the control strategy of the operator, leads to that the user and the operator both get a satisfactory service result. In NGN the plan of the scheme of the invention realizes the high-efficiency, safe and reliable network intercommunication and increases the network performance of the NGN by the effective control to the edge or grouping gateway according to the network resource and control strategy.
Description
Edge or packet gateway control system and its realize control method technical field
The present invention relates to next generation network（NGN, Next Generation Network) technology, in espespecially a kind of NGN, edge or packet gateway control system and its method for realizing control.Background of invention
With the development of conventional communication networks, internet and mobile communications network, it is inexorable trend that each Wang Network, which is mutually merged, and NGN is exactly with Internet protocol（IP, Internet Protocol) packet switching network is core net, control is separated with carrying, and various access technologies are simultaneously deposited, the new generation network of the existing various networks of fusion, disclosure satisfy that the demand of Future broadband multimedia communication.
NGN carries original public switched telephone network（PSTN, Public Switched Telephone Network) all business, while substantial amounts of data transfer is unloaded in IP network, to mitigate PSTN heavy burden, and is increased with the new features of IP technologies and enhance many old and new's business.NGN is to be based on time-multiplexed PSTN speech networks, integrated services digital network（ISDN, Integrated Services Digital Network), [product of the multiple network fusion such as speech net, NGN causes being implemented as in order to may of in the new generation network integrated service such as voice, video, data by IP-based packet network and mobile logical ^.
International Telecommunication Union（ITU, International Telecommunication Union) NGN that defines is a kind of packet-based network, telecommunication service can be provided the user, a variety of broadbands and service shield amount can be utilized（QoS, Quality of Service) ensure transmission technology, transmission correlation technique of its business correlation function independently of bottom.The business that ^GN allows users to free access network and the unexpectedly service provider of striving property and they select, supports universal mobility user is obtained consistent and universal business supply.
NGN essential characteristic includes：Based on packet ^ transmission；Bearing capacity, call/session and
Using the control function separation between/business；Business is supplied decouples and provides open interface with transmission；Based on business building block（Including in real time/stream/non-real-time service and multimedia）Support wide scope business, using and mechanism；Possesses end-to-end quality of service and transparent broadband ability；Interacted by open interface with legacy network；Universal mobility；User is freely linked into different business supplier；Diversity identification schemes, it can be resolved to IP address to route in an ip network；User, which perceives same business, has unified service feature；Fused business between fixation/mobile network；Transmission technology of the business correlation function independently of bottom；Support last a variety of mile technology；All control requirements are adapted to, such as about urgency communication and security/privacy etc..
Fig. 1 is the logic diagram of NGN system architectures, as shown in Figure 1, wherein, NGN subsystem includes Network attachment subsystem (Network Attachment Subsystem), resource and admission control subsystem (RACS, Resource and Admission Control Subsystem), PSTN/ISDN Emulation Subsystem（PSTN/ISDN Emulation Subsystem), IP multimedia subsystem (IMS, IP Multimedia Subsystem), stream service sub-system（Streaming Services Subsystem) and other IP multimedia subsystem, IMSs (Other Multimedia Subsystem) totally six subsystems；
IP bearer networks include core transport network（Core Transport Network) and access transmission network (Access Transport Network)0Terminal (Terminal) accesses IP bearer networks by access function (Access Function), as between access transmission network and core transport network, between the not same area of core transport network, passed through limbic function between different IP transmission networks（Edge Function) intercommunication, core transport network and other networks are by gateway intercommunication if between traditional fixation or mobile network.
RACS is responsible for the unified management of bearer network resource, and RACS includes a policy deciding functional entity（PDFE, Policy Decision Function Entit), for being arbitrated with reference to the service and decision-making in terms of network resource status safety, resource and the media related to IP network intercommunication to predetermined control strategy；RACS is also comprising a transfer resource control function entity（TRCFE,
Transport Resource Control Function Entity), for managing the IP network resource of itself.
The need for due to delivery of user traffic, between different IP networks, such as access between transmission network and core transport network or between the not same area of core transport network, it is necessary to carry out intercommunication.Therefore, the functional entity in intermediate node position, namely Border Gateway functional entity/packet gateway function entity（BGFE/PGFE) it is referred to as edge/packet gateway function entity, the functions such as safeguard protection, resource guarantee and media handling will likely be had concurrently, but, when Border Gateway control function entity/packet gateway control function entity (BGCFE/PGCFE) is referred to as edge/packet gateway control function entity initiation IP network interoperability services request, how BGFE/PGFE to be controlled according to network resource conditions and carrier policy, to realize network interworking, clearly effective method and system is also lacked at present.
Continue evolution and the appearance of various relevant criterions with NGN, solve effective control problem at edge or packet gateway has turned into one of key technology that NGN develops.This problem can be effectively solved there is presently no any technical scheme, namely just blunt edge or packet gateway can not be also controlled in all fields according to network resource conditions and carrier policy, to realize IP network intercommunication, this seriously inhibits NGN continuation development and evolution.The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of edge or packet gateway control system, network interworking is realized in control that can be according to Internet resources and predetermined control strategy.
Another object of the present invention is to provide a kind of method that edge or packet gateway control system realize control, enable under the control of NGN edge or packet gateway according to Internet resources and predetermined control strategy, realize network interworking.
To reach above-mentioned purpose, what technical scheme was specifically realized in：
A kind of edge or packet gateway control system, the system include：
Service control unit, resource request is sent to resource control unit, receives the network resource information from resource control unit；Service control information is sent to intercommunication execution unit；
Resource control unit, receives the resource request from service control unit, and network resource information is sent to service control unit；
Intercommunication execution unit, receives the service control information from service control unit, performs IP network intercommunication processing.
The service control unit includes：Intercommunication control unit and strategic decision-making unit, wherein, intercommunication control unit, for providing control IP network interoperability services from application, IP network intercommunication request and service control information is sent to strategic decision-making unit；
Strategic decision-making unit, receives the IP network intercommunication request from intercommunication control unit and service control information, and send resource request to the resource control unit；Receive the network resource information from resource control unit；Service control information is sent to intercommunication execution unit.
The service control unit includes：Intercommunication control unit and strategic decision-making unit, wherein, intercommunication control unit, for providing control IP network interoperability services from application, IP network intercommunication request and service control information is sent to strategic decision-making unit；
Strategic decision-making unit, receives the IP network intercommunication request from intercommunication control unit and service control information, and resource request is sent to the resource control unit；The network resource information from resource control unit is received, the intercommunication execution unit is transmitted to after being adjusted to the service control information received or the service control information received is transmitted to the intercommunication execution unit.
The service control unit includes：Intercommunication control unit and strategic decision-making unit, wherein, intercommunication control unit, for providing control IP network interoperability services from application, IP network intercommunication request and strategy request is sent to strategic decision-making unit；The policy response from strategic decision-making unit is received, after being adjusted to service control information, the service control information after adjustment is sent to the intercommunication execution unit；
Strategic decision-making unit, receives the IP network intercommunication request from intercommunication control unit and strategy is asked
Ask, resource request is sent to the resource control unit；The network resource information from resource control unit is received, service strategy is generated and sends alert response to intercommunication control unit.
The intercommunication control unit is edge/group gateway control function entity B GCFE/PGCFE;The strategic decision-making unit is policy deciding functional entity PDFE;The resource control unit is transfer resource control function entity TRCFE;It is edge/packet gateway function entity B GCFE/PGCFE that the intercommunication, which performs entity,.
The method that control is realized at a kind of edge or packet gateway control system, sets the control strategy being controlled to bearing resource in systems；When initiating IP network intercommunication request and Service controll, this method comprises the following steps：
A. system obtains network resource information, and control strategy and the network resource information of acquisition according to setting, generates the service and decision-making related to IP network interoperability services；
B. system performs IP network intercommunication processing according to the service and decision-making of generation.
The system includes：Edge/packet gateway control function entity B GCFE/PGCFE, policy deciding functional entity PDFE, transfer resource control function entity TRCFE, and edge/packet gateway function entity B GFE/PGFE.
Step A is specifically included：
All. the BGCFE/PGCFE sends the IP network intercommunication resource request related to IP network intercommunication to PDFE；
A12. the PDFE distributes corresponding Internet resources to TRCFE requests, and TRCFE feeds back Wang Network resource informations to PDFE;
A13. the PDFE generates the service and decision-making related to IP network interoperability services according to the control strategy of setting and the network resource information of acquisition.
At least include source address, destination address, service shield amount information in IP network intercommunication resource request described in step All.
The network resource information of the feedback at least includes：The network bandwidth, time delay, shake.
The service strategy includes：Network address translation NAT is distributed and passed through, IPv4 and IPv6 intercommunications, anti-address spoofing, topology are hidden, packet making, gate, flow governance, use measurement, media encoding and decoding algorithm and packaging time length to change.
The step All also includes：The BGCFE/PGCFE sends the service control information related to IP network intercommunication to PDFE.
The step B is specifically included：The PDFE adjusts service control information according to the service and decision-making of generation, selects BGFE/PGFE and is sent to the BGFE/PGFE, and the BGFE/PGFE performs IP network intercommunication according to the service control information after adjustment and handled.
Selected BGFE/PGFE information is carried in service control information；The step B is specifically included：The PDFE adjusts service control information according to the service and decision-making of generation, and is transmitted to selected BGFE/PGFE, and the BGFE/PGFE performs IP network interworkings according to the service control information after adjustment and handled.
The service information processed by after adjustment is sent to before selected BGFE/PGFE, and this method also includes： .
Service and decision-making after adjustment is sent to BGCFE/PGCFE by the PDFE, if obtaining BGCFE/PGCFE confirmation, continues executing with transmission；Otherwise, return to step A12, or terminate this method flow.
Call model mapping relations are preset in the PDFE；After the step A, before step B, this method also includes：
The PDFE is converted to BGCFE/PGCFE call model selected BGFE/PGFE call model according to default call model mapping relations.
The step All also includes：The BGCFE/PGCFE sends decision requests to PDFE.The step B is specifically included：
B11. the service and decision-making of generation is sent to BGCFE/PGCFE by the PDFE;
B12. the BGCFE/PGCFE adjusts service control information according to the service and decision-making of generation,
Selection BGFE/PGFE is simultaneously sent to the BGFE/PGFE, and the BGFE/PGFE performs IP network intercommunication according to the service control information after adjustment and handled.
The step B is specifically included：
B21. the PDFE adjusts service control information according to the partial service decision-making of generation, selects BGFE PGFE, and the service control information after adjustment is sent to selected BGFE/PGFE;Meanwhile, the remaining service and decision-making of generation and selected BGFE/PGFE information are sent to BGCFE PGCFE by the PDFE;The BGCFE/PGCFE adjusts service control information according to the service and decision-making received and is sent to selected BGFE/PGFE;
B22. the selected BGFE/PGFE performs IP Wang Network intercommunications according to the service control information after adjustment and handled.
Selected BGFE/PGFE information is carried in the strategy request；The step B is specifically included：
B31. the partial service decision-making adjustment service control information of PDFE roots generation, and the service control information after adjustment is sent to selected BGFE/PGFE;
Meanwhile, the remaining service and decision-making of generation is sent to BGCFE/PGCFE by the PDFE;The BGCFE/PGCFE adjusts service control information according to the service and decision-making received and is sent to selected BGFE/PGFE;
B32. the selected BGFE/PGFE performs IP network interworkings according to the service control information after adjustment and handled.
The adjustment includes：Correct and/or supporting.
As seen from the above technical solution, pass through edge of the present invention or packet gateway control system and control method, it is responsible for providing the requirement for the aspect of control strategy three that the acquisition of intercommunication execution unit of current interoperability services, the service control information from service control unit combine IP network intercommunication request, real-time network resource information and operator, user and operator is obtained for satisfied service result.The present invention program, in NGN, by according to Internet resources and predetermined control strategy to edge or
Effective control of packet gateway, realizes efficient, safe and reliable network interworking, improves
NGN network performance.Brief Description Of Drawings
Fig. 1 is the logic diagram of NGN system architectures；
Fig. 2 is edge of the present invention or group gateway control system composition frame chart；
Fig. 3 is the edge or packet gateway control system composition frame chart of the embodiment of the present invention one；Fig. 4 is the flow chart at the edge or packet gateway controlling method of the embodiment of the present invention one；Fig. 5 is the edge or packet gateway control system composition frame chart of the embodiment of the present invention two；Fig. 6 is the flow chart at the edge or packet gateway controlling method of the embodiment of the present invention two；Fig. 7 is the edge or packet gateway control system composition frame chart of the embodiment of the present invention three；Fig. 8 is the flow chart at the edge or packet gateway controlling method of the embodiment of the present invention three.Implement the mode of the present invention
Fig. 2 is edge of the present invention or packet gateway control system composition frame chart, as shown in Fig. 2 edge of the present invention or packet gateway control system include：Service control unit, resource control unit and intercommunication execution unit. , ,
Wherein, service control unit is when initiating IP network intercommunication request and Service controll, resource request is sent to resource control unit, receive the network resource information fed back from resource control unit, and according to the network resource information received and the control strategy being controlled based on business demand to bearing resource itself pre-set, generate the service and decision-making in terms of safety, resource and the media related to IP network interoperability services；According to the service and decision-making of generation, service control information is adjusted, and the service control information after adjustment is sent to intercommunication execution unit.Wherein, control strategy is to need to be set in advance in PDFE according to the operation of itself by operator, for example, be defined as the bandwidth limit that certain type of business is provided, address translation rule when being and for example set for NAT etc..
Resource control unit, receives the resource request from service control unit, network resource information is fed back into service control unit.Resource control unit can be the TRCFE in RACS.
Intercommunication execution unit, receives the service control information from service control unit, and performing IP network interworkings according to the moon received blunt business control information is handled.Intercommunication execution unit can be BGFE/PGFE.
Pass through edge of the present invention or packet gateway control system and control method, it is responsible for providing the requirement of net Network resource informations and the aspect of control strategy three of operator when the acquisition of intercommunication execution unit of current interoperability services, the service control information from service control unit combine IP network intercommunication request, reality, user and operator is obtained for satisfied service result.The present invention program, in NGN, by effective control according to Internet resources and control strategy to edge or packet gateway, realizes efficient, safe and reliable network interworking, improves NGN network performance.
Further, service control unit can be made up of intercommunication control unit and strategic decision-making unit.Wherein, intercommunication control unit can be BGCFE/PGCFE, and strategic decision-making unit can be the PDFE in RACS.The realization of service control unit see below the specific descriptions of each embodiment, no longer be described in detail again here.
For the objects, technical solutions and advantages of the present invention are more clearly understood, develop simultaneously preferred embodiment referring to the drawings, and the present invention is described in more detail.
Fig. 3 is the edge or packet gateway control system composition frame chart of the embodiment of the present invention one, in Fig. 3, BGCFE/PGCFE is intercommunication control unit, PDFE is strategic decision-making unit, TRCFE is resource control unit, BGFE/PGFE is intercommunication execution unit, and wherein TRCFE and PDFE belong to RACS.With reference to Fig. 2, in the present embodiment, arrow is connected PDFE with BGFE/PGFE by a dotted line, and dotted line arrow is invalid.Each unit function is introduced separately below：
BGFE/PGFE is located at the transmission network 1 (TN1) in some transmission network such as Fig. 3, is connected with the interface node of the TN2 in other transmission networks such as Fig. 3.BGFE/PGFE is realized at safeguard protection, resource guarantee and media after the control of the IP network interoperability services from PDFE is received
The gateway functions such as reason, intercommunication is handled between completing IP network.
BGCFE/PGCFE is used to provide control IP network interworking services from application, and BGCFE/PGCFE sends IP network intercommunication resource request and service control information to PDFE.
Service control information can include, but are not limited to network address translation（NAT, Network Address Translation) distribution and pass through, IPv4 and IPv6 intercommunications, anti-address spoofing, topology hide, packet making, gate such as packet filtering, resource allocation and RSVP, flow governance, using measurement, media encoding and decoding algorithm and packaging time length conversion.
TRCFE is responsible for IP network resource, receives the resource request from PDFE, and feed back real-time network resource information to PDFE.
PDFE mainly has two functions, and one is that agency is played between BGCFE/PGCFE and BGFE/PGFE（Agent effect)；Another is responsible for making the service and decision-making in terms of the safety related to IP network intercommunication, resource and media.Specifically include：PDFE is receiving IP network intercommunication request and service control information from BGCFE/PGCFE, and resource request is sent to TRCFE, and according to the TRCFE net Network resource informations fed back and the control strategy itself pre-set, generates service and decision-making；Then, PDFE adjusts the service control information received, and the service control information after adjustment is sent into BGFE/PGFE according to the service and decision-making of generation.Adjustment described here includes amendment and/or supporting etc., implements the description referring to method part in Fig. 4.
As shown in Figure 3, the service control information from PDFE that the responsible BGFE/PGFE for providing current service is obtained combines the requirement of the aspect of control strategy three of BGCFE/PGCFE request, real-time network resource information and operator, user and operator is obtained for satisfied result.
Embodiment one between BGCFE/PGCFE and BGFE/PGFE by adding the PDFE as agency, to realize the control and management to BGFE/PGFE.Controls of the BGCFE/PGCFE to BGFE/PGFE, is realized by PDFE, the resource capability summation for all BGFE/PGFE that PDFE resource capability is managed equivalent to itself, therefore BGCFE/PGCFE
PDEF can be regarded as to a BGFE/PGFE to be controlled, as BGFE/PGFE in the same direction request services are the same when asking to service to PDEF.PDFE logically possesses the BGFE/PGFE of multiple BGFE/PGFE resources equivalent to one, and the quantity of the network element of management, significantly reduces BGCFE/PGCFE burden required for greatly reducing BGCFE/PGCFE；
Meanwhile, PDFE is again equivalent to BGCFE/PGCFE.BGFE/PGFE is unified to be registered to PDFE, and PDFE is registered as a BGFE/PGFE to BGCFE/PGCFE.As long as there is a BGFE PGFE to be succeeded in registration to PDFE, PDFE just possesses ability and provides service to BGCFE/PGCFE.
In addition, for the uniformity of the call model that keeps BGCFE/PGCFE and BGFE/PGFE, the mapping relations that further can be set up in PDFE between BGCFE/PGCFE call model and BGFE/PGFE call model, such as call identification, resource identification, topological structure, and control message etc. mapping relations.
Fig. 4 is the flow chart of the edge Huo Fen Group gateway control methods of the embodiment of the present invention one, and the method for describing the embodiment of the present invention one with reference to Fig. 3 is as follows：
Step 401:BGCFE/PGCFE sends the IP network intercommunication resource request related to IP network intercommunication and service control information to PDFE, to require BGFE/PGFE distribution respective resources or start corresponding mechanism to provide IP network interoperability services, the IP network intercommunication resource request includes the information such as source address, destination address, qos requirement.
Step 402:PDFE is received after IP network intercommunication resource request and service control information, to TRCFE requests distribute corresponding net ' network resource, the network resource information that PDFE feeds back according to TRCFE sets the control strategy generation service and decision-making of emperor with reference to PDFE itself in advance；The service control information received is adjusted according to the service and decision-making of generation, gateway management is carried out；According to default call model mapping relations, BGCFE PGCFE call model is converted to selected BGFE/PGFE call model.
In this step, TRCFE feedback network resource information include but is not limited to the network bandwidth, when
Prolong, shake.Here the method that explanation generates service strategy as an example：Such as BGCFE/PGCFE is certain service request 2M bandwidth, PDFE learns that current network can only provide the resource of 1M bandwidth from TRCFE feedback, if default control strategy be bandwidth it is not enough in the case of provide and service rather than refusal is serviced according to real resource, so, service and decision-making will be to provide 1M bandwidth；If default control strategy is refusal service in the case of bandwidth deficiency, then, service and decision-making will be refusal service.As another example, such as BGCFE/PGCFE is certain service request 2M bandwidth, PDFE learns that current network can provide the resource of 5M bandwidth from TRCFE feedback, if default control strategy be bandwidth it is sufficient in the case of provide service according to real resource, so, service and decision-making will be to provide 5M bandwidth；If default control strategy be bandwidth it is sufficient in the case of provide service according to request resource, then, service and decision-making will be to provide 2M bandwidth.The principle of generation service strategy is in summary：According to default control strategy, in the case where real resource relatively asks resource sufficient, service and decision-making is offer request resource or real resource；In the case where real resource relatively asks inadequate resource, service and decision-making is offer real resource or refusal service.
PDFE, which carries out gateway management, to be included：According to the service control information received in the decision-making set-up procedure 401, selection and control BGFE/PGFE distribution respective resources start corresponding mechanism to provide current network interoperability services, such as upper fan's service and decision-making is to provide 1M bandwidth, so PDFE selects a BGFE/PGFE that there is the resource to provide ability, then controls the BGFE/PGFE to distribute 1M bandwidth for current business.
Described default mapping includes but is not limited to the mapping of call identification, resource identification, topological structure and control message etc..
Here, the realization corrected in adjustment is further illustrated, such as：BGCFE/PGCFE generates an IP network intercommunication resource request and service control information according to session negotiation, the information of distribution 2M bandwidth is carried in service control information, but current network resources and control strategy are based on according to PDFE, the service of 1M bandwidth can only be at most provided, if can receive by negotiation, the 2M bandwidth required in former service control information is modified to 1M bandwidth by PDFE.Negotiations process is not necessarily
Necessary, negotiation refers to that the service and decision-making that PDFE could be made that is sent to the BGCFE/PGCFE as resources requesting party, if obtaining BGCFE/PGCFE confirmation, then it represents that receive；Otherwise do not receive, now PDFE can ask Internet resources to TRCFE again, regenerate service and decision-making and adjust service control information, directly can also unsuccessfully terminate this request process.
For another example, BGCFE PGCFE generate an IP network intercommunication resource request and service control information according to session negotiation, the information for building a path is carried in service control information, wherein coding can be the G.721 coding that fidelity effect is quite a lot of but occupied bandwidth is more, it can also be the poorer but less G.729 coding of occupied bandwidth of fidelity effect, but the network resource information that PDFE is fed back by TRCFE finds that network has compared congestion, such as current some ratio for having exceeded total bandwidth with bandwidth, then PDFE is that G.729 prioritizing selection encodes based on the service and decision-making that current network resources and control strategy are made, and carry the decision information in the service control information sent to BGFE/PGFE.
The realization that ^ covers in explanation adjustment as another example, such as：The Media Stream across IP domains is needed for one, PDFE is hidden based on secure context such as topology or resource aspect such as address constitutes different considerations, make the service and decision-making for needing to carry out NAT, and selected BGFE/PGFE is informed in the service control information for be sent to BGFE/PGFE according to the decision-making, carry out NAT distribution setting related to what is passed through.
Step 403:PDFE sends the IP network interoperability services control information after adjustment to selected BGFE/PGFE.
Step 404:BGFE/PGFE performs IP network intercommunication processing, realizes IP network intercommunication according to the requirement of control information.
Fig. 5 is the edge or packet gateway control system composition frame chart of the embodiment of the present invention two, in Fig. 3, BGCFE/PGCFE is intercommunication control unit, PDFE is strategic decision-making unit, and TRCFE is resource control unit, and BGFE/PGFE is intercommunication execution unit, wherein TRCFE and PDFE belong to RACSo combinations Fig. 2, in the present embodiment, arrow is connected PDFE with BGFE/PGFE by a dotted line
Dotted line arrow is invalid.Its function is introduced separately below：
BGFE/PGFE is located at the TN1 in some transmission network such as Fig. 5, is connected with the interface node of the N2 in other transmission networks such as Fig. 5.BGFE/PGFE realizes the gateway functions such as safeguard protection, resource guarantee and media handling after the control of the IP network interoperability services from PDFE is received, and intercommunication is handled between completing IP network.
BGCFE/PGCFE controls BGFE/PGFE, BGFE/PGFE to be registered by PDFE to BGCFE/PGCFE from application, and BGCFE/PGCFE obtains BGFE/PGFE resource situation, and sends service control information to BGFE/PGFE through PDFE.BGCFE/PGCFE sends IP network intercommunication to PDFE and asked, and forwards service control information through PDFE.
TRCFE is responsible for IP network resource, receives the resource request from PDFE, and feed back real-time network resource information to PDFE.
Service control information from BGCFE/PGCFE is transmitted to corresponding BGFE/PGFE by PDFE, plays agency（Proxy effect), while PDFE provides IP network intercommunication relevant Decision, if it is desired, PDFE is adjusted according to the decision-making to the service control information to be forwarded.Specifically include：PDFE is receiving IP network intercommunication request and service control information from BGCFE/PGCFE, on the one hand, resource request is sent to TRCFE, and according to the TRCFE network resource informations fed back and the control strategy itself pre-set, generates service and decision-making；On the other hand; PDFE is when forwarding the service control information from BGCFE/PGCFE to BGFE/PGFE; the service and decision-making of generation will be combined; service control information to be forwarded is adjusted, so that supporting and/or amendment BGCFE/PGCFE is to service control informations such as the specified BGFE PGFE safeguard protection related to IP network intercommunication, resource guarantee and the media handlings sent.
It should be noted that adjustment of the PDFE to service control information here is just carried out when needing, if need what requirements of the PDFE in current service strategy and service control information was determined, if the resource that provides of service strategy can,;Require, then do not adjust from sufficient；If requirement can not be met, it is adjusted, further, if carry out last adjustment and further depend on PDFE
With the negotiation result of requesting party.
For the control between BGCFE/PGCFE and BGFE/PGFE is interacted, PDFE provides unified interface.By the unified interface, BGFE/PGFE is registered to BGCFE/PGCFE, and BGCFE/PGCFE knows BGFE/PGFE resource situation and BGFE/PGFE is controlled through PDFE.BGCFE PGCFE and BGFE PGFE keep the uniformity of call model.
Embodiment two is compared with embodiment two, and difference is：BGCFE PGCFE in embodiment one are to carry out the BGFE/PGFE that controls to be selected by PDFE after information exchange, and agency by PDFE and decision-making with PDFE;And in embodiment two, BGCFE/PGCFE itself selectes BGFE/PGFE according to BGFE/PGFE log-on message, service control information is transmitted to selected BGFE/PGFE via PDFE again, simultaneously, if desired, the service and decision-making that PDFE can be generated according to itself is forwarded again after being adjusted to the service control information forwarded by itself.
Fig. 6 is the flow chart at the edge or packet gateway controlling method of the embodiment of the present invention two, and the method for describing the embodiment of the present invention two with reference to Fig. 5 is as follows：
Step 601:BGCFE/PGCFE sends IP network intercommunication resource request to PDFE, and sends service control information to BGFE/PGFE through PDFE, to require BGFE/PGFE distribution respective resources or start corresponding mechanism to provide IP network interoperability services.
Selected BGFE PGFE information is carried in the service control information.
Step 602:PDFE is received after IP meat network intercommunication resource request and the service control information for needing forwarding, corresponding Internet resources are distributed to TRCFE requests, and the network resource information such as network bandwidth, time delay, the shake etc. fed back according to TRCFE, accordingly arbitrated with reference to the control strategy that PDFE itself is pre-set, generate service and decision-making；PDFE makes corresponding adjustment according to the service and decision-making of the generation to the IP network interoperability services control information for needing to forward, such as supporting and/or amendment etc..
It is completely the same described in step 402 of the method for adjustment with embodiment one, repeat no more here.If it should be noted that according to current decision, it is necessary to be adjusted to service control information,
Then adjust；Otherwise directly forward.
Step 603:IP network interoperability services control information after step 602 is handled is transmitted to selected BGFE/PGFE by PDFE.
Step 604:BGFE/PGFE performs IP network interworkings processing, realizes IP network intercommunication according to the requirement of the service control information received.
In embodiment two, BGCFE/PGCFE forwards the control information of IP network interoperability services through PDFE to BGFE PGFE, the network resource conditions that PDFE is provided according to TRCFE and the control strategy pre-set arbitrate obtaining IP network intercommunication relevant Decision, and BGFE/PGFE execution is transmitted to after being adjusted according to the decision-making to service control information to be forwarded.
Equally, the control strategy of requirement of the business demand of user i.e. from the BGCFE/PGCFE service control informations sent, real-time network resource information and operator, the service result for being satisfied with user and operator are combined in service control information after adjusted.
Fig. 7 is the edge or packet gateway control system composition frame chart of the embodiment of the present invention three, in Fig. 7, BGCFE/PGCFE is intercommunication control unit, PDFE is strategic decision-making unit, TRCFE is resource control unit, BGFE/PGFE is intercommunication execution unit, and wherein TRCFE and PDFE belong to RACS.With reference to Fig. 2, in the present embodiment, BGCFE/PGCFE in service control unit by dash-dot arrows and BGFE/PG E phases ' even, while PDFE sends information by dash-dot arrows to BGCFE/PGCFE, dotted arrow is invalid.Each unit function is introduced separately below：
BGFE/PGFE is located at the TN1 in some transmission network such as Fig. 7, is connected with the interface node of the TN2 in other transmission networks such as Fig. 7.BGFE/PGFE realizes the gateway functions such as safeguard protection, resource guarantee and media handling after the control of the IP network interoperability services from PDFE is received, and intercommunication is handled between completing IP network.
TRCFE is responsible for IP network resource, receives the resource request from PDFE, and feed back real-time network resource information to PDFE.
PDFE receives IP network intercommunication request and strategy request from BGCFE/PGCFE, to
TRCFE sends resource request, and according to the TRCFE network resource informations fed back and the control strategy itself pre-set, generates service and decision-making；The service and decision-making of generation is responded to the BGCFE/PGCFE for initiating IP Wang Network intercommunications requests and strategy request.
BGCFE/PGCFE controls BGFE/PGFE from application.Interacting by the way of direct interface between BGCFE/PGCFE and BGFE/PGFE, BGFE/PGFE is registered to BGCFE PGCFE, and BGCFE/PGCFE is known BGFE PGFE resource situation and directly controlled.BGCFE PGCFE and BGFE/PGFE keeps the uniformity of call model.
BGCFE/PGCFE sends IP network intercommunication request and strategy request to PDFE, and after the service and decision-making responded from PDFE is received, according to the service and decision-making received, the service control information for being sent to BGCFE/PGCFE is adjusted, so that the service control information such as the safeguard protection related to IP network intercommunication, resource guarantee and media handling that supporting and/or amendment BGCFE/PGCFE is sent to specified BGFE/PGFE.
In embodiment three, BGCFE/PGCFE directly controls BGFE/PGFE, and by obtaining decision information with interacting for PDFE, to realize effective control to BGFE/PGFE.Because being directly to control BGFE/PGFE by BGCFE/PGCFE, BGCFE/PGCFE is natively designed to control BGFE/PGFE's in theory, if BGCFE/PGCFE obtains decision information if implementing before control from PDFE, the control tallied with the actual situation can be just directly given from source, and is not used in control process being modified control.So realizing for control function is fairly simple. '
Fig. 8 is the flow chart at the edge or packet gateway controlling method of the embodiment of the present invention three, the method for describing the embodiment of the present invention three with reference to Fig. 7 is as follows：
Step 801：BGCFE/PGCFE sends the related resource request and decision requests of IP network intercommunication to PDFE, to distribute IP network resource to PDFE requests and generate service and decision-making, and asks to reply alert response.
BGFE/PGFE relevant information such as IP address is carried in the resource request and decision requests
Deng, typically after session layer sets up conversation procedure or among apply bearing bed resource when send the request.
Step 802 step 803：PDFE is received after IP network intercommunication resource request and decision requests, corresponding Internet resources are distributed to TRCFE requests, and the network resource information such as network bandwidth, time delay, the shake etc. fed back according to TRCFE, accordingly arbitrated with reference to the control strategy that PDFE itself is pre-set, service and decision-making is generated, and by the alert response to BGCFE/PGCFE.
Step 804:BGCFE/PGCFE is adjusted correspondingly such as supporting and/or amendment according to the service and decision-making information received to IP network interoperability services control information.
The method of adjustment with it is completely the same described in the Bu Sudden 402 of embodiment one, repeat no more here.If it should be noted that adjusted according to current decision, it is necessary to be adjusted to service control information；Otherwise directly forward.
Step 805 step 806:IP network interoperability services control information is sent to BGFE/PGFE by BGCFE/PGCFE, and BGFE/PGFE performs IP network intercommunication processing, realize IP network intercommunication according to the requirement of the service control information received.
In addition, in order to increase operating efficiency, interface can be set between PDFE and BGFE/PGFE, service and decision-making in terms of safety, resource and media that so PDFE combinations resource situation and control strategy are made, partly BGFE PGFE can be directly controlled to implement by PDFE by the interface, rather than BGCFE PGCFE are all returned to again by BGCFE/PGCFE control BGFE/PGFE implementations, similar to embodiment two and a kind of combination of embodiment three, it is implemented as：
The strategy request that BGCFE/PGCFE issues PDFE includes selected BGFE PGFE information；PDFE adjusts service control information according to the partial service decision-making of generation, and the service control information after adjustment is sent into the selected BGFE/PGFE of BGCFE/PGCFE;Meanwhile, the remaining service and decision-making of generation is sent to BGCFE/PGCFE by PDFE, and BGCFE/PGCFE adjusts service control information according to the service and decision-making received and is sent to selected BGFE/PGFE;It is selected
BGFE PGFE perform IP network intercommunication according to the service control information after adjustment and handle.
Or, the strategy request that BGCFE/PGCFE issues PDFE does not include what is selected
BGFE/PGFE information, PDFE adjusts service control information according to the partial service decision-making of generation, selects BGFE/PGFE, and the service control information after adjustment is sent to selected BGFE/PGFE;Meanwhile, the remaining service and decision-making of generation and selected BGFE/PGFE information are sent to BGCFE/PGCFE by PDFE, and BGCFE/PGCFE adjusts service control information according to the service and decision-making received and is sent to selected BGFE/PGFE;Selected BGFE/PGFE performs IP network intercommunication according to the service control information after adjustment and handled.
It is described above; only presently preferred embodiments of the present invention; it is not intended to limit the scope of the present invention, any modification, equivalent substitution and improvements done within the spirit and principles of the invention etc. should be included in the scope of the protection.
Claims (1)
- Claims1st, a kind of edge or packet gateway control system, it is characterised in that the system includes:Service control unit, resource request is sent to resource control unit, receives the network resource information from resource control unit；Service control information is sent to intercommunication execution unit；Resource control unit, receives the resource request from service control unit, and network resource information is sent to service control unit；Intercommunication execution unit, receives the service control information from service control unit, performs IP network intercommunication processing.2nd, system according to claim 1, it is characterised in that the service control unit includes：Intercommunication control unit and strategic decision-making unit, wherein,Intercommunication control unit, for providing control IP net Network interoperability services from application, IP net Network intercommunications requests and service control information are sent to strategic decision-making unit；Strategic decision-making unit, receives the IP network intercommunication request from intercommunication control unit and service control information, and send resource request to the resource control unit；Receive the network resource information from resource control unit；Service control information is sent to intercommunication execution unit.3rd, system according to claim 1, it is characterised in that the service control unit includes：Intercommunication control unit and strategic decision-making unit, wherein,Intercommunication control unit, for providing control IP network interoperability services from application, IP network intercommunication request and service control information are sent to strategic decision-making unit；Strategic decision-making unit, receives the IP network intercommunication request from intercommunication control unit and service control information, and resource request is sent to the resource control unit；The network resource information from resource control unit is received, the intercommunication execution unit is transmitted to after being adjusted to the service control information received or the service control information received is transmitted to the intercommunication execution unit.4th, system according to claim 1, it is characterised in that the service control unit bag Include：Intercommunication control unit and strategic decision-making unit, wherein,Intercommunication control unit, for providing control IP network interoperability services from application, IP network intercommunication request and strategy request are sent to strategic decision-making unit；The policy response from strategic decision-making unit is received, after being adjusted to service control information, the service control information after adjustment is sent to the intercommunication execution unit；Strategic decision-making unit, receives the IP network intercommunication request from intercommunication control unit and strategy request, and resource request is sent to the resource control unit；The network resource information from resource control unit is received, service strategy is generated and sends alert response to intercommunication control unit.5th, the system according to claim 2,3 or 4, it is characterised in that：The intercommunication control unit is edge/packet gateway control function entity B GCFE/PGCFE;The strategic decision-making unit is policy deciding functional entity PDFE;The resource control unit is transfer resource control function entity TRCFE;It is edge/packet gateway function entity B GCFE/PGCFE that the intercommunication, which performs entity,.6th, the method that control is realized at a kind of edge or packet gateway control system, it is characterised in that the control strategy being controlled to bearing resource is set in systems；When initiating IP network intercommunication request and Service controll, this method comprises the following steps：A. system obtains network resource information, and control strategy and the network resource information of acquisition according to setting, generates the service and decision-making related to IP network interoperability services；B. the blunt service and decision-making according to generation of system, performs IP network intercommunication processing.7th, method according to claim 6, it is characterised in that the system includes：Edge/packet gateway control function entity B GCFE PGCFE, policy deciding functional entity PDFE, transfer resource control function entity TRCFE, and edge/packet gateway function entity B GFE/PGFE.8th, method according to claim 7, it is characterised in that step A is specifically included：All. the BGCFE/PGCFE sends the IP network intercommunication resource request related to IP network intercommunication to PDFE； A12. the PDFE distributes corresponding Internet resources to TRCFE requests, and the network resource information of TRCFE feedbacks is to PDFE;A13. the PDFE generates the service and decision-making related to IP network interoperability services according to the control strategy of setting and the network resource information of acquisition.9th, method according to claim 8, it is characterised in that at least include source address, destination address, service shield amount information in IP network interworkings resource request described in step All.10th, method according to claim 8, it is characterised in that the network resource information of the feedback at least includes：The network bandwidth, time delay, shake.11st, method according to claim 8, it is characterised in that the service strategy includes：Network address translation NAT is distributed and passed through, IPv4 and IPv6 intercommunications, anti-address spoofing, topology are hidden, packet making, gate, flow governance, use measurement, media encoding and decoding algorithm and packaging time length to change.12nd, method according to claim 8, it is characterised in that the step All also includes：The BGCFE/PGCFE sends the Service controll related to IP network intercommunication to PDFE and believes platform13rd, method according to claim 12, it is characterised in that the step B is specifically included：The PDFE adjusts service control information according to the service and decision-making of generation, selects BGFE/PGFE and is sent to the BGFE/PGFE, and the BGFE/PGFE performs IP network intercommunication according to the service control information after adjustment and handled.14th, method according to claim 12, it is characterised in that selected BGFE PGFE information is carried in service control information；The step B is specifically included：The PDFE adjusts service control information according to the service and decision-making of generation, and is transmitted to selected BGFE/PGFE, and the BGFE/PGFE performs IP network intercommunication according to the service control information after adjustment and handled.15th, the method according to claim 13 or 14, it is characterised in that the service control information by after adjustment is sent to before selected BGFE/PGFE, and this method also includes： Service and decision-making after adjustment is sent to BGCFE PGCFE by the PDFE, if obtaining BGCFE/PGCFE confirmation, continues executing with transmission；Otherwise, return to step A12, or terminate this method flow.16th, method according to claim 8, it is characterised in that call model mapping relations are preset in the PDFE；After the Bu Sudden A, before step B, this method also includes：The PDFE is converted to BGCFE/PGCFE call model selected BGFE/PGFE call model according to default call model mapping relations.17th, method according to claim 8, it is characterised in that the step All also includes：The BGCFE PGCFE send decision requests to PDFE.18th, method according to claim 17, it is characterised in that the step B is specifically included：B11. the service and decision-making of generation is sent to BGCFE/PGCFE by the PDFE;B12. the BGCFE/PGCFE adjusts service control information according to the service and decision-making of generation, selects BGFE/PGFE and is sent to the BGFE/PGFE, and the BGFE PGFE perform IP network intercommunication according to the service control information after adjustment and handled.19th, method according to claim 17, it is characterised in that the step B is specifically included：B21. the PDFE adjusts service control information according to the partial service decision-making of generation, selects BGFE/PGFE, and the service control information after adjustment is sent to selected BGFE PGFE;Meanwhile, the remaining service and decision-making of generation and selected BGFE/PGFE information are sent to BGCFE/PGCFE by the PDFE;The BGCFE/PGCFE adjusts service control information according to the service and decision-making received and is sent to selected BGFE/PGFE;B22. the selected BGFE PGFE perform IP network interworkings according to the service control information after adjustment and handled.20th, method according to claim 17, it is characterised in that taken in the strategy request With selected BGFE/PGFE information；The step B is specifically included：B31. the PDFE adjusts service control information according to the partial service decision-making of generation, and the service control information after adjustment is sent to selected BGFE/PGFE;Meanwhile, the remaining service and decision-making of generation is sent to BGCFE/PGCFE by the PDFE;The BGCFE PGCFE adjust service control information according to the service and decision-making received and are sent to selected BGFE/PGFE;B32. the selected BGFE/PGFE performs IP network interworkings according to the service control information after adjustment and handled.21st, the method according to claim 13,14,18,19 or 20, it is characterised in that the adjustment includes：Correct and/or supporting.
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| CNB2005100267140A CN100411398C (en) | 2005-06-13 | 2005-06-13 | Edge or packet gateway controlling method in next generation network and its system |
| CNB2005100267371A CN100438515C (en) | 2005-06-14 | 2005-06-14 | Edge or packet gateway controlling method in next generation network and its system |
| CN200510026736.7 | 2005-06-14 | ||
| CNB2005100267367A CN100426805C (en) | 2005-06-14 | 2005-06-14 | Edge or packet gateway control system in next generation network and its method |
| CN200510026737.1 | 2005-06-14 | ||
| PCT/CN2006/001094 WO2006133622A1 (en) | 2005-06-13 | 2006-05-25 | An edge/packet gateway control system and a method for achieving the control by the edge/packet gateway |
| CN2006800121955A CN101160799B (en) | 2005-06-13 | 2006-05-25 | Fringe or packet gateway control system and control method thereof |
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| CN101163099B (en) * | 2007-11-13 | 2011-12-28 | 中兴通讯股份有限公司 | Mapping method |
| CN101163098B (en) * | 2007-11-13 | 2011-10-26 | 中兴通讯股份有限公司 | Method of implementing service data flow and label switching path tunnel mapping |
| CN101478470B (en) * | 2008-01-02 | 2012-06-20 | 中国移动通信集团上海有限公司 | End-to-end service quality dynamic management system and method under heterogeneous network interconnecting scene |
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