CN1881961A - Edge or packet gateway controlling method in next generation network and its system - Google Patents
Edge or packet gateway controlling method in next generation network and its system Download PDFInfo
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- CN1881961A CN1881961A CN 200510026737 CN200510026737A CN1881961A CN 1881961 A CN1881961 A CN 1881961A CN 200510026737 CN200510026737 CN 200510026737 CN 200510026737 A CN200510026737 A CN 200510026737A CN 1881961 A CN1881961 A CN 1881961A
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Abstract
The invention relates to an edge or group gateway control method of next generation network, and a relative system, which can realize network communication of the edge or group gateway of NGN, under the effective control the network resource and local strategy, wherein PDFE is used as proxy between BGCFE/PGCFE and BGFE/PGFE; BGCFE/PGCFE, via the transferring of PDFE, sends the control information of IP network communication service to BGFE/PGFE; PDFE, based on the network resource condition and the preset local strategy provided by TRCFE, to process arbitration to obtain the relative decisions of IP network communication; based on said decision, distributing and/or modifying the transferred control information to be sent to BGFE/PGFE to be executed.
Description
Technical field
The present invention relates to next generation network technology, particularly the edge of next generation network or packet gateway control technology.
Background technology
Development along with conventional communication networks, the Internet and mobile communications network, it is inexorable trend that each network merges mutually, next generation network (Next Generation Nerwork, be called for short " NGN ") be exactly with Internet protocol (Internet Protocol, abbreviation " IP ") packet switching network is a core net, and control separates with carrying, and various access technologies are also deposited, merge the new generation network of existing diverse network, can satisfy the demand of following wideband multimedia communication.
NGN is at traditional public switched telephone network based on circuit switching (Public SwitchedTelephone Network, be called for short " PSTN ") in stepped gradually to based on the paces of packet switching, it has carried all business of original PSTN network, simultaneously great amount of data transmission is unloaded in the IP network to alleviate the heavy burden of PSTN network, the new features with the IP technology increase and have strengthened many old and new's business again.NGN is based on time-multiplexed PSTN speech network, integrated services digital network (Integrated Services Digital Network, be called for short " ISDN "), the product that merges of multiple network such as IP-based packet network and mobile radio communication, it makes that integrated services such as voice, video, data become possibility on new generation network.
(the International Telecommunication Union of International Telecommunications Union, abbreviation " ITU ") defined NGN is a kind of packet-based network, telecommunication service can be provided, can utilize multiple broadband and service quality (Quality of Service, abbreviation " QoS ") transmission technology that enables, its professional correlation function is independent of the transmission correlation technique of bottom, freely be linked into different service providers for the user provides, support universal mobility to make professional consistency and generality supply become possibility the user.
The essential characteristic of NGN comprises: based on packet delivery; Controlled function is separated between bearing capacity, call/session, the application/business; Providing from network decoupling zero and open interface is provided business; Business, application and mechanism (comprising in real time/stream/non-real-time service and multimedia) based on the wide scope of business component support; Possess end-to-end QoS and transparent broadband ability; Mutual by open interface and legacy network; Universal mobility; The user freely is linked into different business supplier; Multiple identification schemes can be resolved to the IP address in case in IP network route; The same business of user's perception has unified service feature; Fixing/fused business between moving; Professional correlation function is independent of the transmission technology of bottom; Adapt to all mechanism's requirements, for example about urgency communication and security/privacy or the like.
NGN comprises Network attachment subsystem (Network Attachment Subsystem), resource and admission control subsystem (Resource and Admission Control Subsystem, be called for short " RACS "), PSTN/ISDN Emulation Subsystem (PSTN/ISDN Emulation Subsystem), IP Multimedia System (IP Multimedia Subsystem is called for short " IMS "), stream service sub-system (Streaming ServicesSubsystem) and other IP multimedia subsystem, IMS (Other Multimedia Subsystem) totally six subsystems.Fig. 1 has provided the logic diagram of the subsystem architecture of NGN.
The IP bearer network comprises core transmission network (Core Transport Network) and inserts transmission network (Access Transport Network), terminal (Terminal) inserts transmission network by access function (AccessFunction), the different IP transmission network (for example inserts transmission network and core transmission network, the not same area of core transmission network) by limbic function (Edge Function) intercommunication, then be by the gateway intercommunication between IP kernel heart transmission network and other networks (for example conventional fixed or mobile network) between.RACS is responsible for the unified management of bearer network resource, it comprises a policy deciding functional entity (Policy DecisionFunction Entity, be called for short " PDFE "), be used for local policy the decision-making of aspects such as the relevant safety of IP network intercommunication, resource and medium being arbitrated in conjunction with network resource status, it also comprises a transfer resource controlled function entity (Transport Resource Control Function Entity, be called for short " TRCFE "), be used to manage the IP network resource under it.
Because the needs of delivery of user traffic, between the different IP network,, need carry out intercommunication such as inserting between transmission network and the core transmission network or not between the same area of core transmission network.Therefore; be in the functional entity of intercommunication node location; also be BGFE/PGFE; may have functions such as safeguard protection, resource guarantee and medium processing concurrently; yet how be inclined to it is controlled, also lack clear and definite effectively implementation method and mechanism at present according to Internet resources situation and carrier policy.
Along with the continuation evolution of NGN and the appearance of various relevant criterion, the effective control problem that solves edge or packet gateway has become one of key technology of NGN development.Also can effectively solve this technical problem at present without any technical scheme, also promptly also can't control to realize the IP network intercommunication edge or packet gateway in all fields according to Internet resources situation and carrier policy tendency, this has seriously hindered continuation development and the evolution of NGN.
Summary of the invention
In view of this, main purpose of the present invention is to provide edge or packet gateway controlling method and system thereof in a kind of next generation network, makes the edge of NGN or packet gateway realize network interworking under effective control of foundation Internet resources and local policy.
For achieving the above object, the invention provides edge or packet gateway controlling method in a kind of next generation network, comprise following steps:
After the described policy deciding functional entity of A is received the request distributing IP network related resource request that edge or packet gateway controlled function entity send and is carried out the control information of IP network interoperability services, request transfer resource controlled function entity distributes corresponding Internet resources, carry out corresponding strategy arbitration and obtain the relevant decision-making of IP network intercommunication, and according to this decision-making carry out supporting to described control information and/or correction after be transmitted to described edge or packet gateway function entity;
Described edge of B or packet gateway function entity are finished the IP network interoperability services and are handled according to the described control information of receiving.
Wherein, described decision-making comprises a following aspect or its combination in any:
Safety, resource and medium.
In this external described method, in the described steps A, described edge or packet gateway controlled function entity when described policy deciding functional entity request, the relevant information of carrying described edge or packet gateway function entity.
In this external described method, in the described steps A, described policy deciding functional entity will distribute corresponding Internet resources to transfer resource controlled function entity requests from the resource request of edge or packet gateway controlled function entity in conjunction with local policy.
In this external described method, in the described steps A, described policy deciding functional entity carries out described decision-making according to transfer resource controlled function entity Internet resources situation that provides and the local policy that sets in advance.
In this external described method, the control information of described IP network interoperability services can be one of following operation or its combination in any:
Network address translation distribute and pass through, IPv4 with IPv6 intercommunication, anti-address spoofing, topology hiding, bag mark, packet filtering, resource allocation and RSVP, flow governance, use measurement, medium encoding and decoding conversion.
The present invention also provides edge or packet gateway control system in a kind of next generation network, comprises:
Edge or packet gateway function entity are used to carry out the IP network interoperability services and handle;
Edge or packet gateway controlled function entity are used to control providing of IP network interoperability services, and it turns to described edge or packet gateway function entity transmission the carrying out control information of IP network interoperability services in policy deciding functional entity;
Policy deciding functional entity, be used to accept and feed back resource request from edge or packet gateway controlled function entity, provide the IP network intercommunication relevant decision-making, and according to this decision-making carry out supporting to the described control information of need transfer and/or correction after be transmitted to described edge or packet gateway function entity;
Transfer resource controlled function entity is used for the IP network management resource, and accept and feedback from the resource request of described policy deciding functional entity.
Wherein, described policy deciding functional entity carries out described decision-making according to transfer resource controlled function entity Internet resources situation that provides and the local policy that sets in advance.
In this external described system, described decision-making comprises a following aspect or its combination in any:
Safety, resource and medium.
In this external described system, the control information of described IP network interoperability services can be one of following operation or its combination in any:
Network address translation distribute and pass through, IPv4 with IPv6 intercommunication, anti-address spoofing, topology hiding, bag mark, packet filtering, resource allocation and RSVP, flow governance, use measurement, medium encoding and decoding conversion.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, PDFE plays agency's effect between BGCFE/PGCFE and BGFE/PGFE, BGCFE/PGCFE turns to BGFE/PGFE to send the control information of IP network interoperability services in PDFE, PDFE arbitrates according to TRCFE Internet resources situation that provides and the local policy that sets in advance and obtains the relevant decision-making of IP network intercommunication, according to this decision-making carry out supporting to the control information of wanting transfer and/or revise after be transmitted to BGFE/PGFE and carry out.
Difference on this technical scheme, brought comparatively significantly beneficial effect, promptly by among the NGN according to Internet resources and local policy to effective control of edge or packet gateway, realized efficient, safe and reliable network interworking, improved the network performance of NGN.
In supporting and/or the control information revised, combine user's business demand (control information of sending from BGCFE/PGCFE), the resource situation of network and the local policy of operator, so make user and operator can obtain satisfied result.
Description of drawings
Fig. 1 is the logical construction schematic diagram of NGN subsystem architecture;
Fig. 2 is edge or packet gateway control system structural representation according to an embodiment of the invention;
Fig. 3 is edge or packet gateway controlling method schematic flow sheet according to an embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Principle of the present invention is described earlier, and the present invention comes down to PDFE and act on behalf of the scheme that (Proxy) transmits between BGCFE/PGCFE and BGFE/PGFE.PDFE among the RACS is in IP network intercommunication process, upwards provide the unified interface mutual with BGFE/PGFE for BGCFE/PGCFE, the control information of transmitting BGCFE/PGCFE is downwards carried out concrete control to BGFE/PGFE, and this control is applied the influence of aspects such as safety, resource and medium with reference to the network resource status that TRCFE provides.
Fig. 2 shows edge or packet gateway control system block diagram.
In system shown in Figure 2, with the maximally related several network elements of IP network intercommunication be respectively BGFE/PGFE, PDFE, TRCFE and BGCFE/PGCFE.Introduce its function below respectively:
BGFE/PGFE is arranged in the interface node of certain transmission network (as the TN1 of figure) to other transmission network (as the TN2 of figure), realizes gateway functions such as safeguard protection, resource guarantee and medium processing, finishes intercommunication processing between IP network.
BGCFE/PGCFE controls BGFE/PGFE from application, and BGFE/PGFE registers to BGCFE/PGCFE, and BGCFE/PGCFE understands the resource situation on the BGFE/PGFE, and sends the control information of IP network interoperability services through PDFE to BGFE/PGFE.
TRCFE and PDFE belong to RACS, and TRCFE is in charge of the IP network resource, and acceptance and feedback are from the resource request of PDFE.PDFE is responsible for the control information from BGCFE/PGCFE is transmitted to corresponding BGFE/PGFE, provides the IP network intercommunication relevant decision-making, and carries out supporting to the control information that will transmit and/or correction according to this decision-making.
Mutual for the control between BGCFE/PGCFE and the BGFE/PGFE, PDFE provides unified interface.Through this interface, BGFE/PGFE registers to BGCFE/PGCFE, and BGCFE/PGCFE understands the resource situation on the BGFE/PGFE and through PDFE BGFE/PGFE controlled.BGCFE/PGCFE and BGFE/PGFE keep the consistency of call model.
When the control of PDFE between forwarding BGCFE/PGCFE and BGFE/PGFE is mutual; will be in conjunction with the resource situation (network bandwidth for example; time delay; the shake etc.) and local policy (Local Policy) carry out safety; the decision-making of aspect such as resource and medium; and this control applied relative influence alternately; thereby the safeguard protection relevant supporting and/or correction BGCFE/PGCFE sends to BGFE/PGFE with the IP network intercommunication; control informations such as resource guarantee and medium processing; for example network address translation (Network AddressTranslation is called for short " NAT ") is distributed and is passed through; IPv4 and IPv6 intercommunication; anti-address spoofing; topology hiding; the bag mark; packet filtering; resource allocation and RSVP; the flow governance; use and measure; medium encoding and decoding conversion etc.
The flow process by a mutual embodiment who realizes the IP network interoperability services is as shown in Figure 3 between each network element in the system shown in Figure 2.
In step 301, BGCFE/PGCFE sends control information to BGFE/PGFE to PDFE request distributing IP Internet resources and through PDFE, require BGFE/PGFE distribution respective resources or start corresponding mechanism so that the IP network interoperability services to be provided, comprise source and destination, service quality (Quality ofService is called for short " QoS ") requirement etc. in the control information.
After this enter step 302, after PDFE receives resource request and needs the control information of transfer, request TRCFE distributes corresponding Internet resources, arbitrate generation safety in conjunction with resource situation and local policy that TRCFE provides, the decision-making of aspect such as resource and medium, and corresponding supporting and/or revise the control information of IP network interoperability services and comprise that NAT distributes and passes through according to this decision-making to making from the IP network interoperability services control information of BGCFE/PGCFE, IPv4 and IPv6 intercommunication, anti-address spoofing, topology hiding, the bag mark, gate (packet filtering), resource allocation and RSVP, the flow governance, use and measure, medium encoding and decoding conversion etc.Concrete example supporting, that revise is carried out in this control information for several below.
First example of revising: BGCFE/PGCFE is according to coming session negotiation to generate a control request, wish to distribute the 2M bandwidth, but the decision-making of making according to PDFE resource Network Based and local policy, can only provide the 1M bandwidth at most to this request, if this also is that PDFE just is modified to the 1M bandwidth with former request and issues through the negotiation acceptable.
Second example: the BGCFE/PGCFE that revises generated a control request according to session negotiation, wish to build a path, wherein there are two options to meet the demands to coding, can be G.721 encode (the fidelity effect is quite a lot of but occupied bandwidth is more), also can be G.729 encode (the fidelity weak effect is a little but occupied bandwidth is less), but PDFE finds network more congested (for example current dedicated bandwidth has surpassed certain ratio of total bandwidth) by TRCFE, then its preferential G.729 coding of selecting in the control information of transmitting to BGFE/PGFE.
A supporting example: the Media Stream of striding the IP territory for needs, PDFE makes the decision-making of carrying out NAT based on the consideration of secure context (for example topology hiding) or resource aspect (for example the address constitutes different), and indicates BGFE/PGFE to carry out NAT in the control information that is transmitted to BGFE/PGFE according to this decision-making and distribute and the relevant setting of passing through.
After this enter step 303, PDFE will transmit BGFE/PGFE through the control information of the supporting and/or revised IP network interoperability services of step 302.
After this enter step 304, BGFE/PGFE is that BGCFE/PGCFE realizes the IP network intercommunication according to the requirement of supporting and/or revised control information.
Though by with reference to some preferred embodiment of the present invention, the present invention is illustrated and describes, those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (10)
1. edge or packet gateway controlling method in the next generation network is characterized in that, comprise following steps:
After the described policy deciding functional entity of A is received the request distributing IP network related resource request that edge or packet gateway controlled function entity send and is carried out the control information of IP network interoperability services, request transfer resource controlled function entity distributes corresponding Internet resources, carry out corresponding strategy arbitration and obtain the relevant decision-making of IP network intercommunication, and according to this decision-making carry out supporting to described control information and/or correction after be transmitted to described edge or packet gateway function entity;
Described edge of B or packet gateway function entity are finished the IP network interoperability services and are handled according to the described control information of receiving.
2. edge or packet gateway controlling method in the next generation network according to claim 1 is characterized in that, described decision-making comprises a following aspect or its combination in any:
Safety, resource and medium.
3. edge or packet gateway controlling method in the next generation network according to claim 1, it is characterized in that, in the described steps A, described edge or packet gateway controlled function entity when described policy deciding functional entity request, the relevant information of carrying described edge or packet gateway function entity.
4. edge or packet gateway controlling method in the next generation network according to claim 1, it is characterized in that, in the described steps A, described policy deciding functional entity will distribute corresponding Internet resources to transfer resource controlled function entity requests from the resource request of edge or packet gateway controlled function entity in conjunction with local policy.
5. edge or packet gateway controlling method in the next generation network according to claim 1, it is characterized in that, in the described steps A, described policy deciding functional entity carries out described decision-making according to transfer resource controlled function entity Internet resources situation that provides and the local policy that sets in advance.
6. edge or packet gateway controlling method in the next generation network according to claim 1 is characterized in that, the control information of described IP network interoperability services can be one of following operation or its combination in any:
Network address translation distribute and pass through, IPv4 with IPv6 intercommunication, anti-address spoofing, topology hiding, bag mark, packet filtering, resource allocation and RSVP, flow governance, use measurement, medium encoding and decoding conversion.
7. edge or packet gateway control system in the next generation network is characterized in that, comprise:
Edge or packet gateway function entity are used to carry out the IP network interoperability services and handle;
Edge or packet gateway controlled function entity are used to control providing of IP network interoperability services, and it turns to described edge or packet gateway function entity transmission the carrying out control information of IP network interoperability services in policy deciding functional entity;
Policy deciding functional entity, be used to accept and feed back resource request from edge or packet gateway controlled function entity, provide the IP network intercommunication relevant decision-making, and according to this decision-making carry out supporting to the described control information of need transfer and/or correction after be transmitted to described edge or packet gateway function entity.
Transfer resource controlled function entity is used for the IP network management resource, and accept and feedback from the resource request of described policy deciding functional entity.
8. edge or packet gateway control system in the next generation network according to claim 7, it is characterized in that described policy deciding functional entity carries out described decision-making according to transfer resource controlled function entity Internet resources situation that provides and the local policy that sets in advance.
9. edge or packet gateway control system in the next generation network according to claim 7 is characterized in that, described decision-making comprises a following aspect or its combination in any:
Safety, resource and medium.
10. edge or packet gateway control system in the next generation network according to claim 7 is characterized in that, the control information of described IP network interoperability services can be one of following operation or its combination in any:
Network address translation distribute and pass through, IPv4 with IPv6 intercommunication, anti-address spoofing, topology hiding, bag mark, packet filtering, resource allocation and RSVP, flow governance, use measurement, medium encoding and decoding conversion.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100267371A CN100438515C (en) | 2005-06-14 | 2005-06-14 | Edge or packet gateway controlling method in next generation network and its system |
| CN2006800121955A CN101160799B (en) | 2005-06-13 | 2006-05-25 | Fringe or packet gateway control system and control method thereof |
| EP06741982A EP1796312A4 (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 |
| 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 |
| US11/680,234 US7881317B2 (en) | 2005-06-13 | 2007-02-28 | Border/packet gateway control system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100267371A CN100438515C (en) | 2005-06-14 | 2005-06-14 | Edge or packet gateway controlling method in next generation network and its system |
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| Publication Number | Publication Date |
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| CN1881961A true CN1881961A (en) | 2006-12-20 |
| CN100438515C CN100438515C (en) | 2008-11-26 |
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| CNB2005100267371A Active CN100438515C (en) | 2005-06-13 | 2005-06-14 | Edge or packet gateway controlling method in next generation network and its system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104253761A (en) * | 2013-06-28 | 2014-12-31 | 华为技术有限公司 | Method and device for bandwidth linkage control |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6493353B2 (en) * | 1998-05-07 | 2002-12-10 | Mci Communications Corporation | Communications signaling gateway and system for an advanced service node |
| KR100464319B1 (en) * | 2002-11-06 | 2004-12-31 | 삼성전자주식회사 | Network architecture for use in next mobile communication system and data communication method using the same |
| CN1595887A (en) * | 2003-09-08 | 2005-03-16 | 华为技术有限公司 | A next generation network system and resource management method |
| CN100571253C (en) * | 2003-11-12 | 2009-12-16 | 中兴通讯股份有限公司 | A kind of RTP resource control distributed approach |
-
2005
- 2005-06-14 CN CNB2005100267371A patent/CN100438515C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104253761A (en) * | 2013-06-28 | 2014-12-31 | 华为技术有限公司 | Method and device for bandwidth linkage control |
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| CN100438515C (en) | 2008-11-26 |
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