CN1885814A - Arrangement method and system for end-to-end service quality between domains employing mixed path - Google Patents
Arrangement method and system for end-to-end service quality between domains employing mixed path Download PDFInfo
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- CN1885814A CN1885814A CNA2005100808029A CN200510080802A CN1885814A CN 1885814 A CN1885814 A CN 1885814A CN A2005100808029 A CNA2005100808029 A CN A2005100808029A CN 200510080802 A CN200510080802 A CN 200510080802A CN 1885814 A CN1885814 A CN 1885814A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/15—Flow control; Congestion control in relation to multipoint traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/78—Architectures of resource allocation
- H04L47/783—Distributed allocation of resources, e.g. bandwidth brokers
- H04L47/785—Distributed allocation of resources, e.g. bandwidth brokers among multiple network domains, e.g. multilateral agreements
- H04L47/786—Mapping reservation between domains
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Abstract
The domain negotiation method for P2P QoS comprises: configuring the net element accessed network and connected to outside network directly for data transmission to let it have function for QoS negotiation as the RNIP; then, when one piece of business in domain need external resource guarantee and the external network manages the local resource by a controller, the RNIP obtains necessary information for negotiation and selects addressing information of external resource controller to pack into a resource request information to send to the controller and receive response information. This invention combines advantages of OFF-PATH and ON-PATH mode.
Description
Technical field
The service quality that the present invention relates to the third generation mobile system guarantees, more specifically, relates to assurance of core-network side end-to-end quality of service and inter-domain negotiation method, system.
Background technology
The technology that the present invention relates to is based on following two kinds of technical foundation: the end-to-end QoS security system in the territory and between the territory.QoS (Quality of Service, service quality) is used to weigh professional index to resource requirements such as bandwidth and time delays.
End-to-end quality of service security system in the territory: the territory here (Domain) comprises GPRS (GPRS) packet domain, perhaps with IP network such as GPRS as Access Network and with the network range of IMS (IP Media Stream subsystem) network, PSTN network interaction.This QoS security system is finished resource guarantee with quality requirements such as the bandwidth that satisfies service needed, time delays by strategy decision and strategy execution in such territory.
Please refer to Fig. 1, each territory comprises IP Media Stream subsystem (IMS) and IP Access Network, comprises in the territory that following and QoS ensure relevant module:
AF:Application Function, application level function is responsible for application layer conversation negotiation and foundation.
PDF:Policy Decision Function, strategy decisive function is generated strategy according to conversation type and CAMEL-Subscription-Information.
PEP:Policy Enforcement Point, Policy Enforcement Point is accepted the policy information from PDF, is applied to the pairing media data flow of session, thereby is reached for this data flow reservation of resource and the purpose that meets the requirements of service quality.
SBLP:Service based Local Policy is based on the local policy of business.Formulating and send to PEP by PDF carries out.The parameter that comprises QoS, service related information, information such as charging policy.
Another kind is the end-to-end quality of service security system between the territory: when the network branch at session two ends is in two territories and this two territories and does not have direct physical connection, need connect by one or more centre backbone networks (being called external network again with respect to these two territories).
In this case, how with application of policies to middle backbone network to guarantee the resource on the whole piece path, it is the content that this system will be studied, provide several diverse ways to finish policy conferring between the territory in the prior art, mainly comprised two kinds: OFF-PATH pattern (off-line mode) and ON-PATH pattern (line model).
The network architecture under the OFF-PATH pattern as shown in Figure 1, this system comprises two territories that connect by outside key IP network, is provided with resouce controller in the external network, is used for the management and the distribution of resource.The feature of this kind framework is: PDF links to each other by building the Gu mouth with the outer net resouce controller, finishes the mutual of signaling decision-making level and consults, and signaling is separated at two passes with data.
Corresponding flow process may further comprise the steps as shown in Figure 2:
Step 110, Policy Enforcement Point PEP sends the strategic decision-making request message to policy decision point PDF;
Step 120, the authorization token that PDF generates makes its state that can discern mandate, if the former business information that do not comprise alternately, PDF will send authorization requests to AF (application layer);
Step 130, AF is receiveed the response to the PDF return authorization, carries business information;
Step 140, based on the information of above-mentioned response, if the policing rule that operator worked out among the QoS resource that the AF session needs and the PDF is consistent, PDF will authorize this session resource needed, and set up IP bearing bed strategy at its territory spatial database;
Step 150, PDF sends the bearing resource request message through the Gu interface to the outer net resouce controller, contains the band business information in the request;
Step 160, outer net resouce controller are returned to PDF and are had receiveing the response of bearing resource negotiation result;
Step 170, if consult successfully, PDF sends tactful decision message (DEC message) to PEP;
Whether step 180 after PEP carries out, sends strategy execution report message (RPT message) to PDF, respond decision-making and run succeeded, and finishes the foundation of carrying.
There is following problem in the OFF-PATH pattern:
1) PDF needs to set up IP-based independently signaling network to consult the resource of required external network between the resouce controller of Gu interface and external network, and the construction of this network is a sizable engineering.
2) PDF need be the function of OFF-PATH mode expansion oneself separately, as disposes all outer net resource manager information, and corresponding route.
3) PDF need know which external network and PEP are direct-connected, and which external network PDF just can know with and hold consultation like this.For different PEP may be direct-connected different external networks.So PDF need safeguard different outer net information at different PEP, as the address and the route thereof of resouce controller.
4) because the flow process of ON-PATH and OFF-PATH is just different in the PDF side, so which kind of negotiation mode PDF before holding consultation, need determine to select for use.But which network element to determine, and how to determine still do not have a problem of clear and definite answer at present by.
The existing network architecture under the ON-PATH pattern as shown in Figure 3, under the ON-PATH pattern, resouce controller is not set in the outer net, inter-domain resource is consulted to be responsible for initiating to the edge router of external network to the network element of outer net transmission data medium by PEP or GGSN (GPRS Support Node gateway) etc., and the path that the path is equal to data medium institute approach takes place signaling.At present main QoS consults signaling and the negotiation means comprise use RSVP serial protocols, MPLS-TE agreement and reaction type machinery of consultation.
The main advantage of ON-PATH pattern is the foundation that does not need to carry out again signaling network, and the assurance of qos signaling has all been passed through in the path of media data flow, ensures that coefficient is higher.But also there are some problems, as require in the path all-router to support agreement protocol etc., as RSVP.
In addition, for the IP Access Network that does not dispose PDF and PEP function, it inserts the gateway of outer net, and for example how the GGSN in the GPRS packet domain holds consultation with regard to end-to-end quality of service with the resouce controller of outer net, does not also propose solution in the prior art.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of inter-domain negotiation method, system and equipment of end-to-end quality of service, promptly can utilize the part path of data medium, again can and the outer net resouce controller between finish the interdomain consultation of service quality.
The basic design that the present invention solves the problems of the technologies described above is: to direct-connected and responsible network element to outer net transmission data medium is configured with outer net in the Access Network, it is possessed with the outer net resouce controller carry out the function that QoS consults.The present invention is called resource negotiation with these network elements and initiates point (RNIP, RESOURCENEGOTIATION INITIATING POINT).For example, have in the territory under the situation of PDF, RNIP is equal to PEP; In the territory is UMTS network and the situation that does not have PDF, and RNIP is equal to the gateway that inserts outer net in GGSN (GGSN that mentions in the literary composition all refers to not possess the GGSN of PEP function) or other IP Access Networks.
After configuration is finished, the assurance of the outside backbone network resource of a service needed is arranged in the territory, and when external network is managed the Home Network resource by the mode of resouce controller, initiate the bearing resource request by RNIP to the outer net resouce controller, can consult to decide data flow by both party obtain the access permission on the network externally.Like this, promptly utilized the part path of data medium, be again and the outer net resouce controller between hold consultation, therefore be called mixed path.The inventive method combines some advantages of OFF-PATH pattern and ON-PATH pattern, hereinafter also this negotiation mode is referred to as mixed path pattern (Hybrid-PATH pattern).
Based on above-mentioned design, the invention provides a kind of inter-domain negotiation method that adopts the end-to-end quality of service of mixed path, in the system that uses, the network branch at session two ends is in two territories that link to each other by external network, and have at least an external network to be provided with resouce controller, this method may further comprise the steps:
(a) on the network element that in the Access Network in described territory, transmits with the direct-connected and responsible media data of described resouce controller, the routing iinformation of configuring external network and the addressing information of resouce controller thereof, and the module that realizes the interdomain consultation function of mixed path pattern between this network element and the external network resouce controller, make this network element become resource negotiation and initiate point;
(b) described resource negotiation is initiated point and is judged in its territory, place that the assurance of service needed external network resource is arranged, and has obtained and comprise destination address, required service quality after this interior professional information, determine one need by way of external network;
(c) described resource negotiation is initiated the addressing information that point obtains this external network resouce controller, but be packaged into the bearing resource request message of this resouce controller identification protocol with this business information that comprises the required service quality information, send to this resouce controller then;
(d) after the resouce controller of described external network is received request, admit control and resource allocation, initiate the some transmission to described resource negotiation then and receive the response, contain the information of being with negotiation result;
(e) described resource negotiation initiation point is receiveed the response according to described, obtains the result of quality of service negoriation between the territory.
Further, above-mentioned inter-domain negotiation method also can have following characteristics: described resource negotiation initiation point is the Policy Enforcement Point in the Access Network, in the step (b), it obtains from the tactful decision message that strategy decisive function sends and comprises destination address, required service quality in interior business information, negotiation between initiation and described resouce controller, in the step (e), as consult success, reports on the implementation are returned to described policy functional module in this Policy Enforcement Point implementation strategy decision back.
Further, above-mentioned inter-domain negotiation method also can have following characteristics: described resource negotiation initiation point is the support node gateway in the GPRS packet domain, in the step (b), it obtains from the packet data protocol context request message that this packet domain serving GPRS support node sends and comprises destination address, required service quality in interior business information, negotiation between initiation and described resouce controller, in the step (e) as consult successfully, this support node gateway returns success response to this serving GPRS support node.
Further, above-mentioned inter-domain negotiation method also can have following characteristics: in the described step (a), also dispose the Gw interface of a standard between the resouce controller of described resource negotiation initiation point and its direct-connected external network, described resource negotiation is initiated the protocol message that interactive messages all adopts this standard interface to stipulate between point and the resouce controller.
Further, above-mentioned inter-domain negotiation method also can have following characteristics: what described Gw interface adopted is COPS agreement or DIAMETER agreement.
Further, above-mentioned inter-domain negotiation method also can have following characteristics: described external network has a plurality of and adopts at least two kinds from resource negotiation point initiation or through the negotiation mode of its initiation, simultaneously:
In the step (a), also initiate to dispose on the some negotiation mode of network selection strategy and external network support, and increase the functional module that is used to select external network at resource negotiation;
In the step (b), described resource negotiation point is according to target ip address, in conjunction with the negotiation mode of described local route, outer net support and network selection strategy select one need by way of external network, and also comprise afterwards in step (b):
Step (b1), described resource negotiation point is judged the negotiation mode that selected external network is supported, if the mixed path pattern, execution in step (c), otherwise the flow processing by each auto negotiation mode regulation finishes.
Further, above-mentioned inter-domain negotiation method also can have following characteristics: when step (b) was selected external network, also the flow information that external network is entered the mouth when other condition is identical, was preferentially selected fluent less external network as a factor of judgement.
Further, above-mentioned inter-domain negotiation method also can have following characteristics: in the described step (e), after described resource negotiation initiation point is received receiveing the response of consulting to fail, when satisfying the continuation network selection condition of local policy regulation, reselect a network, return step (c).
Further, above-mentioned inter-domain negotiation method also can have following characteristics: the configuring negotiation pattern comprises mixed path pattern and line model on the described external network.
Based on above-mentioned design, the present invention also provides a kind of system that adopts the end-to-end quality of service interdomain consultation of mixed path pattern, the network that comprises the session two ends, and with two interconnective external networks in territory of these two network offices, have at least an external network to be provided with resouce controller and adopt the negotiation mode of mixed path, have in the Access Network of initiation session on the network element with the transmission of the direct-connected and responsible media data of described resouce controller, it is characterized in that:
Described network element has also disposed and has carried out the required functional unit of quality of service negoriation between the territory, initiates point as resource negotiation, and this resource negotiation is initiated a negotiation request that comprises information configuration unit, mixed path pattern and initiated the unit and handle the unit through consultation, wherein;
Dispose the routing iinformation of external network in the described information configuration unit, and the addressing information of the resouce controller of external network;
The negotiation request of described mixed path pattern is initiated the unit and is used to obtain and comprises destination address, required service quality at the required business information of interior quality of service negoriation and the addressing information of selected external network resouce controller, and these information sets are made into the resouce controller that the bearing resource request message sends to described selected external network;
The unit of handling through consultation of described mixed path pattern is used to receive from the bearing resource request of outer net resouce controller and responds, and obtains the result of quality of service negoriation between the territory.
Further, said system also can have following characteristics: described resource negotiation initiation point is the Policy Enforcement Point in the Access Network, the unit of handling through consultation of the mixed path pattern in this Policy Enforcement Point also is used for after judgement is consulted successfully, and implementation strategy determines and returns reports on the implementation to corresponding strategy decision making function module.
Further, said system also can have following characteristics: described resource negotiation initiation point is the support node gateway in the packet wireless business packet domain, mixed path pattern in this gateway handle through consultation the unit also be used for judge consult successfully after, return success response to the serving GPRS support node of correspondence.
Further, said system also can have following characteristics: described resource negotiation is initiated point and described resouce controller has all disposed a standard Gw interface, be used to realize signaling message between the two alternately.
Further, said system also can have following characteristics: the support mixed path pattern that has in the described external network is outer from resource negotiation point initiation or through other negotiation mode of its initiation, described resource negotiation is initiated point and is also disposed the negotiation request transmitting unit of external network and negotiation mode selected cell, described other pattern and handle the unit through consultation, wherein:
Described information configuration unit also disposes network selection strategy, the negotiation mode of outer net support and/or the information of agreement;
Described external network and negotiation mode selected cell are used for before sending the request of negotiation, according to negotiation mode, routing iinformation and network that can ensure QoS of network selection policy selection of external network support;
The negotiation request of described other pattern is initiated the unit and is handled the unit through consultation, is used for the interdomain consultation of each self mode prescribed manner initiation with external network, the bearing resource request of receiving is responded handled.
Further, said system also can have following characteristics: described other pattern is included in ray mode.
Based on above-mentioned design, the present invention provides a kind of equipment that is used to realize the end-to-end quality of service interdomain consultation of mixed path pattern again, this equipment is the network element that direct-connected and responsible media data transmits with external network in the Access Network, it is characterized in that: described equipment has also disposed and has carried out the required functional unit of quality of service negoriation between the territory, the negotiation request that comprises information configuration unit, mixed path pattern is initiated the unit and is handled the unit through consultation, wherein;
Dispose the routing iinformation of external network in the described information configuration unit, and the addressing information of the resouce controller of external network;
The negotiation request of described mixed path pattern is initiated the unit and is used to obtain and comprises destination address, required service quality at the required business information of interior quality of service negoriation and the addressing information of selected external network resouce controller, and these information sets are made into the resouce controller that the bearing resource request message sends to described selected external network;
The unit of handling through consultation of described mixed path pattern is used to receive from the bearing resource request of outer net resouce controller and responds, and obtains the result of quality of service negoriation between the territory.
Further, above-mentionedly be used for realizing that the equipment of end-to-end quality of service interdomain consultation can have following characteristics: this equipment is the Policy Enforcement Point of Access Network, the unit of handling through consultation of mixed path pattern wherein also is used for after judgement is consulted successfully, and implementation strategy determines and returns reports on the implementation to corresponding strategy decision making function module.
Further, above-mentionedly be used for realizing that the equipment of end-to-end quality of service interdomain consultation can have following characteristics: this equipment is the support node gateway of packet wireless business packet domain, mixed path pattern wherein handle through consultation the unit also be used for judge consult successfully after, return success response to the serving GPRS support node of correspondence.
Further, above-mentionedly be used to realize that the equipment of end-to-end quality of service interdomain consultation can have following characteristics: this equipment has also disposed a standard Gw interface, is used to realize the mutual of signaling message between the two.
Further, above-mentionedly be used to realize that the equipment of end-to-end quality of service interdomain consultation can have following characteristics: this equipment also disposes external network and negotiation mode selected cell, other is initiated or through the negotiation request transmitting unit of the pattern of its initiation with handle the unit through consultation, wherein from resource negotiation point:
Described information configuration unit also disposes network selection strategy, the negotiation mode of outer net support and/or the information of agreement;
Described external network and negotiation mode selected cell are used for before sending the request of negotiation, according to negotiation mode, routing iinformation and network that can ensure QoS of network selection policy selection of external network support;
The negotiation request of described other pattern is initiated the unit and is handled the unit through consultation, is used for the interdomain consultation of each self mode prescribed manner initiation with external network, the bearing resource request of receiving is responded handled.
Further, above-mentionedly be used to realize that the equipment of end-to-end quality of service interdomain consultation can have following characteristics: described other pattern is included in ray mode.
Further, above-mentionedly be used to realize that the equipment of end-to-end quality of service interdomain consultation can have following characteristics: described handle through consultation the unit also be used for judge consult failure after, can be according to the network selection strategy, when meeting setting continuation network selection condition, select the another one network to initiate new negotiation, doing the failure processing when ineligible again.
As from the foregoing, the present invention adopts the mixed path pattern to realize inter-domain negotiation method, because initiating point by resource negotiation, resource request initiates, to the situation of PDF decision-making is arranged, can make full use of existing network, avoided the foundation of the signaling network between PDF and BCF under the OFF-PATH pattern, and to PDF and PEP and the direct-connected coherence request of external network.Only need generate strategy decision-making and send to PEP of PDF without any the function expansion, does not need to dispose, safeguard and survey the information of any external network, is easy to network stabilization and safeguards.And, adopting the present invention for the situation that does not have the PDF decision-making, GGSN still can be according to signatory service quality to the resource negotiation of outer net initiation based on the mixed path pattern.
Further, when resource negotiation initiation point is connected with a plurality of external networks, the present invention can initiate configuration network and negotiation mode selection function in the point at resource negotiation, to the situation of PDF decision-making is arranged, but efficent use of resources consults to initiate the existing network traffic information of point, select the less network of flow to hold consultation, thereby increased the successful property of network resource negotiation, it is owing to do not need PDF to initiate to consult for mixed path pattern and ON-PATH etc. that resource negotiation initiation point can dispose such selection function, and concerning PDF all do not have on the new function and flow process on the pattern of requirement, the mixed path pattern can be at an easy rate and these mode combinations get up to realize and a plurality of external networks of different mode between negotiation.And for the situation that does not have the PDF decision-making, GGSN more helps selecting outer net and request to consult according to signatory service quality.
Description of drawings
Fig. 1 is the network architecture diagram that QoS ensures between the territory under the existing OFF-PATH pattern.
Fig. 2 is an existing flow chart of authorizing carrying foundation between QoS resource and territory under the OFF-PATH pattern.
Fig. 3 is the network architecture diagram that QoS ensures between the territory under the existing ON-PATH pattern.
The network architecture diagram of Fig. 4 when to be first embodiment of the invention by PEP initiate interdomain consultation and have only an outer net.
The network architecture diagram of Fig. 5 when to be second embodiment of the invention by PEP initiate interdomain consultation and the outer net of the different negotiation modes of a plurality of employings is arranged.
Fig. 6 is the schematic diagram of Signalling exchange in the loading establishing process between the second embodiment of the invention territory.
Fig. 7 is third embodiment of the invention is initiated interdomain consultation by GGSN a network architecture diagram.
Fig. 8 is the schematic diagram of Signalling exchange in the loading establishing process between the third embodiment of the invention territory.
Embodiment
QoS inter-domain negotiation method and system with the mixed path pattern GGSN initiation that initiate with PEP respectively below is example, and the present invention is carried out specific description.
First embodiment
Present embodiment is initiated interdomain consultation and is had only an outer net that adopts the mixed path pattern by PEP.The network architecture of system as shown in Figure 4, the network branch at session two ends is in two territories that link to each other by the key IP network in outside, has PEP and PDF in the territory of initiating to consult, outside backbone IP network has resouce controller.
In order to realize the QoS interdomain consultation of mixed path pattern between PEP and outer net resouce controller, present embodiment PEP disposes following functional unit:
The information configuration unit, the routing iinformation of external network has been disposed in this life in the local route of PEP, and present embodiment also needs addressing informations such as the resouce controller address of configuring external network or the network segment.
The unit is initiated in the negotiation request of mixed path pattern, be used to collect or get access to QoS and consult necessary information, comprise required QoS information (qos policy that refers to the PDF decision herein), target ip address etc., simultaneously, obtain selected outer net (in the present embodiment, PEP only links to each other with an outer net, it is just passable that this external network is got in selecting) resouce controller IP address (can obtain) by modes such as configuration, domain name mappings and these information sets are made into the bearing resource request message, send to the resouce controller of selected external network by the Gw interface.
Gw interface, Gw interface are the standard interfaces that present embodiment defines in order to realize the negotiation between PEP and the outer net resouce controller, can use agreements such as COPS or DIAMETER.
The mixed path pattern handle the unit through consultation, be used to handle the bearing resource request from the outer net resouce controller of receiving and respond, promptly for the response of success, carry out the strategy decision of PDF, send strategy execution report message (RPT message) to PDF then; For the response of failure, the processing of then failing.
Correspondingly, the outer net resouce controller mainly comprises following three relevant functional units: the Home Network resource control unit, be used for being responsible for the management and the distribution of Home Network resource, and finish the admittance control of external network; QoS resource negotiation unit is used to receive the resource request that subscription network is arranged from other, distributes required resource for it, returns response at last; And the Gw interface, the mode with standard interface of being used for realizes the interdomain consultation with PEP.Except that the Gw interface, other two unit are same as the prior art.
To introduce the flow process that carrying is set up between the present embodiment territory below, this flow process occurs in after the IMS session foundation, may further comprise the steps:
Step 210, PEP sends the strategic decision-making request message to PDF;
Step 220, PDF will send authorization requests to AF;
Step 230, AF responds to the PDF return authorization, carries business information;
Step 240, PDF authorizes this session resource needed, sets up IP bearing bed strategy at its territory spatial database;
These four steps are identical with the prior art flow process of Fig. 1, and wherein step 220 and 230 can be omitted.
Step 250, PDF sends tactful decision message (DEC message) through Go interface to PEP, has in the message to comprise target ip address, qos policy in interior business information;
Step 260, PEP obtains above-mentioned information from the DEC message of receiving, and obtains the resouce controller IP address and the routing iinformation of the outer net of supporting the mixed path pattern;
Step 270, PEP is packaged into the bearing resource request message of Gw interface protocol with information such as the target ip address of business, qos policys, sends to the resouce controller of described outer net;
Step 280, after the outer net resouce controller is received request, admit control and resource allocation, return bearing resource by the Gw interface to PEP then and receive the response, contain the QoS information of being with negotiation result, affirmation, the information such as IP address that receive the PEP of this message in the message;
Step 290, PEP judges whether to consult successfully according to receiveing the response, if, carry out next step, otherwise, execution in step 310;
Step 300, PEP carries out the strategy decision of PDF, sends strategy execution report message (RPT message) to PDF then, finishes the foundation of carrying, finishes;
Step 310, the processing of failing finishes.
Step 250～290th wherein, the step directly related with interdomain consultation.
As can be seen, adopt the machinery of consultation of present embodiment mixed path pattern, have following advantage:
1) resource request is initiated by PEP or GGSN, rather than policy decision point PDF initiates.Can make full use of existing network like this, avoid the foundation of the signaling network between PDF and BCF under the OFF-PATH pattern;
2) PDF in this pattern without any function expansion, therefore the information that does not need to dispose, safeguard and survey any external network is (as the IP address of resouce controller, corresponding route, and network traffic congestion situation etc.), just generate strategy decision-making (SBLP) and send to PEP.Being easy to network stabilization simultaneously safeguards.
3) under the OFF-PATH pattern, PDF need safeguard different direct-connected outer net information at different PEP, as (seeing problem the 3rd point that OFF-PATH exists in second joint) such as the address of BCF and routes thereof.How to guarantee the consistency that PDF and PEP and external network are direct-connected and safeguard that outer net information is necessity and important problem.This pattern adopts PEP to send conforming assurance and maintenance requirement that this connection has then been avoided in request.
Second embodiment
Present embodiment is direct-connected with the outer net of the different negotiation modes of a plurality of employings by PEP initiation interdomain consultation and PEP, as ON-PATH pattern and mixed path pattern etc.The network architecture of present embodiment system as shown in Figure 5, be with the first embodiment difference, PEP and a plurality of external network in the territory of initiating to consult are direct-connected, and the employing ON-PATH mode negotiation that has in these external networks, the employing mixed path mode negotiation that has, two kinds of mode negotiations of adopted ON-PATH that has and mixed path.The various modes supported that has is consulted, and present embodiment is to be chosen as example in ON-PATH and mixed path pattern.
In order to realize and the interdomain consultation of a plurality of direct-connected outer nets that the PEP of present embodiment need increase by three relevant functional units:
External network and negotiation mode selected cell: be used for before send consulting request, consult according to the network of the easier guarantee QoS of survice of selection such as the situation to the negotiation mode support, routing iinformation and network selection strategy of external network.Wherein, in the selection strategy of configuration, with the inlet flow rate situation of the outer net that a connected factor as judgement, when other condition is identical, preferentially select fluent less external network, this flow is detected by the existing flow detection of PEP unit.
The unit is initiated in the negotiation request of ON-PATH pattern, is used for the interdomain consultation of ON-PATH pattern initiation with external network.
The ON-PATH pattern handle the unit through consultation, be used for handling the bearing resource request of receiving and respond in the mode of ON-PATH pattern regulation.
In addition, the PEP of present embodiment has negotiation request initiation unit and Gw interface, the no longer repeat specification identical with the first embodiment function.And information configuration unit and to handle the unit through consultation different, wherein:
The information configuration unit is except that addressing informations such as the address that disposes routing iinformation and external network resouce controller or the network segment, also dispose the network selection strategy (when selecting external network to runing the decision rule of factors such as strategy, network traffics, continue condition that network selection will meet etc.), the information of the QoS negotiation mode (as ON-PATH pattern, mixed path pattern) supported of outer net and agreement (referring to the agreement that adopts under the ON-PATH pattern) as RSVP.
Handling the processing of responding for success the unit through consultation is identical with first embodiment, but response for failure, can when meeting setting continuation network selection condition, select the another one network to initiate new negotiation according to the network selection strategy, do the failure processing when ineligible again.
The resouce controller of the external network of present embodiment employing mixed path pattern is identical with first embodiment, also has Home Network resource control unit, QoS resource negotiation unit and Gw interface.
When having a plurality of external networks and PEP direct-connected, the signalling interactive process between the territory between carrying each functional module when setting up please refer to Fig. 6, and carrying is set up flow process and be may further comprise the steps between the territory:
Step 410～450, identical with step 210～250, repeat no more;
Step 460, PEP obtains from the DEC message of receiving and comprises target ip address, qos policy after interior business information, one of QoS negotiation mode, network selection strategy (considering the flow information of the outer web portal) selection of supporting according to target ip address and local route, outer net need by way of external network;
Step 470, PEP judges the QoS negotiation mode that selected external network is supported, if the mixed path pattern is carried out next step, if the ON-PATH pattern, press the flow processing of ON-PATH pattern after, end;
Here, if selected external network adopts ON-PATH pattern and mixed path pattern simultaneously, PEP can select suitable negotiation mode for use according to the network selection strategy (as runing strategy) of this locality configuration.
Step 480, PEP obtains the IP address and the routing iinformation of selected outer net resouce controller, and business information such as its IP address, qos policy are packaged into the bearing resource request message of Gw interface protocol, sends to the resouce controller of described outer net by the Gw interface;
Step 490 after the outer net resouce controller is received request, is admitted control and resource allocation, returns bearing resource by the Gw interface to PEP and receives the response, and contains the QoS information of being with negotiation result, affirmation, the information such as IP address that receive the PEP of this message;
Step 500, PEP judges whether to consult successfully according to receiveing the response, if, carry out next step, otherwise, execution in step 520;
Step 510, PEP carries out the strategy decision of PDF, sends RPT message to PDF then, finishes the foundation of carrying, finishes;
Step 520, PEP judges whether to satisfy the continuation network selection condition of setting, if select to return step 470 behind the another one external network, otherwise the processing of failing finishes.
Step 460～500th wherein, the step directly related with interdomain consultation.
As can be seen, mixed path pattern that the present invention proposes and ON-PATH for PDF, all do not have on the new function and flow process on requirement, so can realize at an easy rate a plurality of external networks of different negotiation modes are selected and consulted.In addition, the traffic conditions of the inlet that the PEP of present embodiment can be by surveying a plurality of outer nets connected is selected a relatively little outer net of flow to hold consultation, thereby has been increased the successful property of network resource negotiation.
The 3rd embodiment
Present embodiment is initiated interdomain consultation by GGSN, and GGSN is direct-connected with the outer net of the different negotiation modes of a plurality of employings.The network architecture of system as shown in Figure 7, do not dispose PDF in the GPRS packet domain, do not dispose the PEP function on the GGSN yet, thereby can not adopt the method for first and second embodiment, and need initiate to consult request according to user's CAMEL-Subscription-Information and activation parameter (as target ip address, qos parameter etc.) to external network by GGSN.
In order to realize the QoS interdomain consultation with a plurality of external networks, present embodiment GGSN goes up the negotiation request that needs configuration information dispensing unit, Gw interface, mixed path pattern and initiates the unit and handle the unit through consultation, and the negotiation request of ON-PATH pattern is initiated the unit and handled unit, external network and negotiation mode selected cell through consultation.In each unit, have only the function of handling the unit through consultation of mixed path pattern and ON-PATH pattern different with second embodiment, promptly after consulting successfully or failing, GGSN is to SGSN (GPRS serving GPRS support node) but not PDF returns response message.
The function of outer net resouce controller is identical with preceding two embodiment.
Signalling interactive process between each functional module when carrying is set up between the present embodiment territory can be with reference to Fig. 7, and the flow process that carrying is set up then may further comprise the steps:
Step 610, terminal initiation packet data protocol (PDP:Packet data protocol) activates request, contains the professional required qos parameter of band;
Step 620, SGSN examines request after receiving this request, if meet signatory QoS standard and other CAMEL-Subscription-Information, the PDP Context request message to GGSN initiates user's face contains business information such as the professional required qos parameter of band, target ip address;
Step 630, after GGSN receives request, when setting up the tunnel, examination user's target ip address, the carrying support of external network if desired, then one of negotiation mode of supporting according to local route, outer net and network selection strategy (considering the flow information of outer web portal) selection need by way of external network;
Step 640, GGSN judges the QoS negotiation mode that selected external network is supported, if the mixed path pattern is carried out next step, if other patterns such as ON-PATH by after its flow processing separately, finish;
Step 650, GGSN obtains the IP address and the routing iinformation of selected outer net resouce controller, with the IP address of this resouce controller, when activating with business information such as qos parameter, target ip address be packaged into the bearing resource request message of Gw interface protocol, send to the resouce controller of described external network by the Gw interface;
Step 660 after the outer net resouce controller is received request, is admitted control and resource allocation, returns bearing resource by the Gw interface to GGSN and receives the response, and contains the QoS information of being with negotiation result, affirmation, the information such as IP address that receive the GGSN of this message;
Step 670, GGSN judges whether to consult successfully after receiving receiveing the response of bearing resource, if, carry out next step, otherwise, execution in step 690;
Step 680 is returned the response of creating the PDP Context success to SGSN, sets up RAB between terminal and SGSN, and SGSN returns to activate to terminal and accepts, and finishes;
Step 690, GGSN judges whether to satisfy the network selection condition that continues, if, select to return step 650 behind the another one external network, otherwise GGSN to return the response of creating the PDP Context failure to SGSN, failure is set up in carrying, finishes.
Step 630～670th wherein, the step directly related with interdomain consultation.
Clearly, when GGSN only links to each other with the external network of an employing mixed path pattern, can on the basis of the 3rd embodiment, remove the negotiation request of ON-PATH pattern and initiate the unit and handle the unit through consultation, and external network and negotiation mode selected cell.In addition, need to delete the content relevant with the ON-PATH pattern on stream with network selection.
The foregoing description discloses several specific embodiments of the present invention, but the present invention is not limited thereto.For example, in another embodiment, do not adopt the Gw interface between PEP and the outer net explorer, then need initiate in the unit protocol conversion subelement is set, be used for that QoS is consulted necessary information sets and be made into the agreement that the outer net explorer adopts and send again in the negotiation request of PEP.And in the information configuration unit, just need dispose the information of outer net agreement that explorer adopts simultaneously.
And for example, the present invention is not limited to initiate point by two kinds of resource negotiations of GGSN and PEP, but in the Access Network with the network element of the direct-connected transmission of media data of outer net, after necessary function module in the configuration, can initiate point as resource negotiation of the present invention.
Claims (22)
1, a kind of inter-domain negotiation method that adopts the end-to-end quality of service of mixed path, in the system that uses, the network branch at session two ends is in two territories that link to each other by external network, and has at least an external network to be provided with resouce controller, and this method may further comprise the steps:
(a) on the network element that in the Access Network in described territory, transmits with the direct-connected and responsible media data of described resouce controller, the routing iinformation of configuring external network and the addressing information of resouce controller thereof, and the module that realizes the interdomain consultation function of mixed path pattern between this network element and the external network resouce controller, make this network element become resource negotiation and initiate point;
(b) described resource negotiation is initiated point and is judged in its territory, place that the assurance of service needed external network resource is arranged, and has obtained and comprise destination address, required service quality after this interior professional information, determine one need by way of external network;
(c) described resource negotiation is initiated the addressing information that point obtains this external network resouce controller, but be packaged into the bearing resource request message of this resouce controller identification protocol with this business information that comprises the required service quality information, send to this resouce controller then;
(d) after the resouce controller of described external network is received request, admit control and resource allocation, initiate the some transmission to described resource negotiation then and receive the response, contain the information of being with negotiation result;
(e) described resource negotiation initiation point is receiveed the response according to described, obtains the result of quality of service negoriation between the territory.
2, inter-domain negotiation method as claimed in claim 1, it is characterized in that, described resource negotiation initiation point is the Policy Enforcement Point in the Access Network, in the step (b), it obtains from the tactful decision message that strategy decisive function sends and comprises destination address, required service quality in interior business information, and the negotiation between initiation and described resouce controller is in the step (e), as consult success, reports on the implementation are returned to described policy functional module in this Policy Enforcement Point implementation strategy decision back.
3, inter-domain negotiation method as claimed in claim 1, it is characterized in that, described resource negotiation initiation point is the support node gateway in the GPRS packet domain, in the step (b), it obtains from the packet data protocol context request message that this packet domain serving GPRS support node sends and comprises destination address, required service quality in interior business information, negotiation between initiation and described resouce controller, in the step (e) as consult successfully, this support node gateway returns success response to this serving GPRS support node.
4, as claim 1,2 or 3 described inter-domain negotiation methods, it is characterized in that, in the described step (a), also dispose the Gw interface of a standard between the resouce controller of described resource negotiation initiation point and its direct-connected external network, described resource negotiation is initiated the protocol message that interactive messages all adopts this standard interface to stipulate between point and the resouce controller.
5, inter-domain negotiation method as claimed in claim 4 is characterized in that, what described Gw interface adopted is COPS agreement or DIAMETER agreement.
As claim 1,2 or 3 described inter-domain negotiation methods, it is characterized in that 6, described external network has a plurality of and adopts at least two kinds from resource negotiation point initiation or through the negotiation mode of its initiation, simultaneously:
In the step (a), also initiate to dispose on the some negotiation mode of network selection strategy and external network support, and increase the functional module that is used to select external network at resource negotiation;
In the step (b), described resource negotiation point is according to target ip address, in conjunction with the negotiation mode of described local route, outer net support and network selection strategy select one need by way of external network, and also comprise afterwards in step (b):
Step (b1), described resource negotiation point is judged the negotiation mode that selected external network is supported, if the mixed path pattern, execution in step (c), otherwise the flow processing by each auto negotiation mode regulation finishes.
7, inter-domain negotiation method as claimed in claim 6 is characterized in that, when step (b) was selected external network, also the flow information that external network is entered the mouth when other condition is identical, was preferentially selected fluent less external network as a factor of judgement.
8, inter-domain negotiation method as claimed in claim 6 is characterized in that, in the described step (e), after described resource negotiation initiation point is received receiveing the response of consulting to fail, when satisfying the continuation network selection condition of local policy regulation, reselect a network, return step (c).
9, inter-domain negotiation method as claimed in claim 6 is characterized in that, the configuring negotiation pattern comprises mixed path pattern and line model on the described external network.
10, a kind of system that adopts the end-to-end quality of service interdomain consultation of mixed path pattern, the network that comprises the session two ends, and with two interconnective external networks in territory of these two network offices, have at least an external network to be provided with resouce controller and adopt the negotiation mode of mixed path, have in the Access Network of initiation session on the network element with the transmission of the direct-connected and responsible media data of described resouce controller, it is characterized in that:
Described network element has also disposed and has carried out the required functional unit of quality of service negoriation between the territory, initiates point as resource negotiation, and this resource negotiation is initiated a negotiation request that comprises information configuration unit, mixed path pattern and initiated the unit and handle the unit through consultation, wherein;
Dispose the routing iinformation of external network in the described information configuration unit, and the addressing information of the resouce controller of external network;
The negotiation request of described mixed path pattern is initiated the unit and is used to obtain and comprises destination address, required service quality at the required business information of interior quality of service negoriation and the addressing information of selected external network resouce controller, and these information sets are made into the resouce controller that the bearing resource request message sends to described selected external network;
The unit of handling through consultation of described mixed path pattern is used to receive from the bearing resource request of outer net resouce controller and responds, and obtains the result of quality of service negoriation between the territory.
11, the system of end-to-end quality of service interdomain consultation as claimed in claim 10, it is characterized in that, described resource negotiation initiation point is the Policy Enforcement Point in the Access Network, the unit of handling through consultation of the mixed path pattern in this Policy Enforcement Point also is used for after judgement is consulted successfully, and implementation strategy determines and returns reports on the implementation to corresponding strategy decision making function module.
12, the system of end-to-end quality of service interdomain consultation as claimed in claim 10, it is characterized in that, described resource negotiation initiation point is the support node gateway in the packet wireless business packet domain, mixed path pattern in this gateway handle through consultation the unit also be used for judge consult successfully after, return success response to the serving GPRS support node of correspondence.
As the system of claim 10,11 and 12 described end-to-end quality of service interdomain consultations, it is characterized in that 13, described resource negotiation is initiated point and described resouce controller has all disposed a standard Gw interface, be used to realize signaling message between the two alternately.
14, as the system of claim 10,11 and 12 described end-to-end quality of service interdomain consultations, it is characterized in that, other negotiation mode that the support mixed path pattern that has in the described external network is outer, described resource negotiation initiates that point also disposes external network and negotiation mode selected cell, other is from resource negotiation point initiation or through the negotiation request transmitting unit of the pattern of its initiation with handle the unit through consultation, wherein:
Described information configuration unit also disposes network selection strategy, the negotiation mode of outer net support and/or the information of agreement;
Described external network and negotiation mode selected cell are used for before sending the request of negotiation, according to negotiation mode, routing iinformation and network that can ensure QoS of network selection policy selection of external network support;
The negotiation request of described other pattern is initiated the unit and is handled the unit through consultation, is used for the interdomain consultation of each self mode prescribed manner initiation with external network, the bearing resource request of receiving is responded handled.
15, the system of end-to-end quality of service interdomain consultation as claimed in claim 14 is characterized in that, described other pattern is included in ray mode.
16, a kind of equipment that is used to realize the end-to-end quality of service interdomain consultation of mixed path pattern, this equipment is the network element that direct-connected and responsible media data transmits with external network in the Access Network, it is characterized in that: described equipment has also disposed and has carried out the required functional unit of quality of service negoriation between the territory, the negotiation request that comprises information configuration unit, mixed path pattern is initiated the unit and is handled the unit through consultation, wherein;
Dispose the routing iinformation of external network in the described information configuration unit, and the addressing information of the resouce controller of external network;
The negotiation request of described mixed path pattern is initiated the unit and is used to obtain and comprises destination address, required service quality at the required business information of interior quality of service negoriation and the addressing information of selected external network resouce controller, and these information sets are made into the resouce controller that the bearing resource request message sends to described selected external network;
The unit of handling through consultation of described mixed path pattern is used to receive from the bearing resource request of outer net resouce controller and responds, and obtains the result of quality of service negoriation between the territory.
17, the equipment of end-to-end quality of service interdomain consultation as claimed in claim 16, it is characterized in that, this equipment is the Policy Enforcement Point in the Access Network, the unit of handling through consultation of mixed path pattern wherein also is used for after judgement is consulted successfully, and implementation strategy determines and returns reports on the implementation to corresponding strategy decision making function module.
18, the equipment of end-to-end quality of service interdomain consultation as claimed in claim 16, it is characterized in that, this equipment is the support node gateway in the packet wireless business packet domain, mixed path pattern wherein handle through consultation the unit also be used for judge consult successfully after, return success response to the serving GPRS support node of correspondence.
As the equipment of claim 16,17 and 18 described end-to-end quality of service interdomain consultations, it is characterized in that 19, this equipment has also disposed a standard Gw interface, be used to realize the mutual of signaling message between the two.
20, as the equipment of claim 16,17 and 18 described end-to-end quality of service interdomain consultations, it is characterized in that, this equipment also disposes external network and negotiation mode selected cell, other is initiated or through the negotiation request transmitting unit of the pattern of its initiation with handle the unit through consultation, wherein from resource negotiation point:
Described information configuration unit also disposes network selection strategy, the negotiation mode of outer net support and/or the information of agreement;
Described external network and negotiation mode selected cell are used for before sending the request of negotiation, according to negotiation mode, routing iinformation and network that can ensure QoS of network selection policy selection of external network support;
The negotiation request of described other pattern is initiated the unit and is handled the unit through consultation, is used for the interdomain consultation of each self mode prescribed manner initiation with external network, the bearing resource request of receiving is responded handled.
21, the system of end-to-end quality of service interdomain consultation as claimed in claim 20 is characterized in that, described other pattern is included in ray mode.
22, the equipment of end-to-end quality of service interdomain consultation as claimed in claim 20, it is characterized in that, the described unit of handling through consultation also is used for after judging the negotiation failure, can be according to the network selection strategy, when meeting setting continuation network selection condition, select the another one network to initiate new negotiation, doing the failure processing when ineligible again.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100808029A CN100388714C (en) | 2005-06-22 | 2005-06-22 | Arrangement method and system for end-to-end service quality between domains employing mixed path |
| PCT/CN2005/002113 WO2006136069A1 (en) | 2005-06-22 | 2005-12-07 | A METHOD AND SYSTEM OF INTER-DOMAIN NEGOTIATION FOR END-TO-END QoS USING HYBRID-PATHS |
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| CNB2005100808029A CN100388714C (en) | 2005-06-22 | 2005-06-22 | Arrangement method and system for end-to-end service quality between domains employing mixed path |
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| WO (1) | WO2006136069A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024000A1 (en) * | 2007-08-23 | 2009-02-26 | Zte Corporation | Cross-domain end-to-end path establishment method |
| CN102571568A (en) * | 2011-12-27 | 2012-07-11 | 北京奇虎科技有限公司 | Method and device for processing task |
| CN104714783A (en) * | 2011-12-27 | 2015-06-17 | 北京奇虎科技有限公司 | Task processing method and device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717300A (en) * | 2011-12-27 | 2015-06-17 | 北京奇虎科技有限公司 | Task processing method and device |
| EP3927049A4 (en) * | 2019-02-14 | 2022-08-31 | Beijing Xiaomi Mobile Software Co., Ltd. | Resource determination method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1248431B1 (en) * | 2001-03-27 | 2007-10-31 | Sony Deutschland GmbH | Method for achieving end-to-end quality of service negotiation for distributed multimedia applications |
| US7227865B2 (en) * | 2001-08-16 | 2007-06-05 | Interdigital Technology Corporation | Utilizing session initiation protocol for identifying user equipment resource reservation setup protocol capabilities |
| US7113796B2 (en) * | 2002-01-18 | 2006-09-26 | Microsoft Corporation | Framework and method for QoS-aware resource discovery in mobile ad hoc networks |
| EP1414211A1 (en) * | 2002-10-23 | 2004-04-28 | Sony International (Europe) GmbH | Software architecture for capability and quality-of-service negotiations and session establishment for distributed multimedia applications |
| CN1595895A (en) * | 2003-09-10 | 2005-03-16 | 华为技术有限公司 | A routing method based on resource restriction |
| GB0323453D0 (en) * | 2003-10-07 | 2003-11-05 | Nokia Corp | Quality of service in communication systems |
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- 2005-12-07 WO PCT/CN2005/002113 patent/WO2006136069A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024000A1 (en) * | 2007-08-23 | 2009-02-26 | Zte Corporation | Cross-domain end-to-end path establishment method |
| CN102571568A (en) * | 2011-12-27 | 2012-07-11 | 北京奇虎科技有限公司 | Method and device for processing task |
| CN102571568B (en) * | 2011-12-27 | 2015-04-29 | 北京奇虎科技有限公司 | Method and device for processing task |
| CN104714783A (en) * | 2011-12-27 | 2015-06-17 | 北京奇虎科技有限公司 | Task processing method and device |
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| CN100388714C (en) | 2008-05-14 |
| WO2006136069A1 (en) | 2006-12-28 |
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