CN101005440A - Metod for realizing different service quality control in radio network - Google Patents
Metod for realizing different service quality control in radio network Download PDFInfo
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- CN101005440A CN101005440A CNA2006100332286A CN200610033228A CN101005440A CN 101005440 A CN101005440 A CN 101005440A CN A2006100332286 A CNA2006100332286 A CN A2006100332286A CN 200610033228 A CN200610033228 A CN 200610033228A CN 101005440 A CN101005440 A CN 101005440A
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Abstract
The method comprises: in the first, the policy decision function (PDF) sends the QoS strategy rule containing the information about the reserved priority to GGSN (gateway GPRS supporting node); the GGSN maps the QoS strategy rule containing the information about the reserved priority to the ARP parameters of the unified mobile telecommunication system (UMTS) QoS; thereby, the different QoS control can be made for the service of access network according to UMTS QoS.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of method that in wireless network, realizes the differentiated service quality control.
Background technology
WCDMA is the mainstream technology in the 3G (Third Generation) Moblie, and the 3G (Third Generation) Moblie technology can provide abundanter mobile multi-media service.When abundant multimedia service was provided, dissimilar business had different quality of service requirements usually, and communication network has only and satisfies corresponding quality of service requirement and could provide satisfied service for the user.
In cordless communication network, corresponding UMTS QoS (universal mobile telecommunications system service quality) describes definition by one group of property parameters in the table 1, wherein, it is the index that embodies the opposite sex in poor service that five marks of front have the property parameters of underscore, promptly will allow the service quality of user experience differentiation under the situation of at present limited air interface resource, such index is crucial qos policy.
Table 1
| Attribute | Implication | Influence | Type |
| Traffic?class | The class of service definition is by industry The affair characteristics determined | Business is classified, so that The network processes mode meets business The requirement of feature | The quality classification quality requirement |
| Maximum?bit?rate | Maximum available bandwidth | Network will limit and allow session Maximum to bandwidth is used | The resource allocation quality requirement |
| Guaranteed?bit?rate | Guarantee speed | The assurance bandwidth that network provides | The resource allocation quality requirement |
| Traffic?handling?priority | Processing priority | Network processes Interactive stream The relative priority level | Quality grading |
| Allocation/Retention priority | Distribution/maintenance priority | Access/congested control priority | Quality grading |
| Delivery?order | Whether provide packet sequence to guarantee | The IP type need not | - |
| Maximum?SDU?size | The maximum length of SDU | The RAN transmission optimization | Quality optimization |
| SDU?format?information | All possible SDU length tabulation | The RAN transmission optimization | Resource optimization |
| SDU?error?ratio | SDU loses or wrong ratio | RAN error detection algorithm | Quality optimization |
| Residual?bit?error?ratio | Residual wrong SDU | RAN error detection CRC check degree | Quality optimization |
| Delivery?of?erroneous?SDUs | Whether submit wrong SDU | The RAN error detection mechanism | Quality optimization |
| Transfer?delay | Propagation delay time | Network guarantees requirement to the time delay under 95% situation | The network quality requirement |
| Source?statistics descriptor | The source descriptive statistics | Be used for improving resource multiplex efficient | Resource optimization |
| Signalling?indication | The signaling indication | For signaling provides higher priority | The network optimization |
In end-to-end QoS (service quality) framework of the 3GPP of standard R6 version is by PDF (strategy decisive function) application and loading end to be associated, to solve the problem that carrying can't perception service layer QoS.
The corresponding whole framework of QoS end to end as shown in Figure 1, corresponding core concept mainly comprises:
At first, set up in the process in business, UE can consult according to self QoS ability and AF (application function) qos parameter that carries out application;
Then, initiate the QoS authorized application to PDF again by AF, the QoS business information after PDF consults according to application is carried out the QoS mandate, forms local policy SBLP (based on the local policy of business), generates and authorizes TOKEN (token);
At last, UE is when secondary activating PDP (packet data protocol) context phase application RAB (RAB) resource, and PDF can issue IP QoS (IP-based service quality) strategy to GGSN (Gateway GPRS Support Node);
GGSN will finish the conversion mapping of the UMTS QoS property parameters of the IP qos policy of mandate and mandate as Policy Enforcement Point, and finish secondary PDP context activation flow process according to the UMTS QoS property parameters control of the mandate after transforming, final UTRAN can be according to the channel parameter of eating dishes without rice or wine that dispose according to the RAB assignment parameter decision of authorizing, thereby realize the QoS control of UMTS (universal mobile telecommunications system) network, effectively the utilance of the air interface resource of Ti Gaoing.
Still as shown in Figure 1, by horizontal negotiation and vertically mapping, on PDF, service category information and carrier policy rule are comprehensively shone upon, the otherness index that finally is mapped to UMTS QoS comprises: Traffic Class, Maximum bit rate, Guaranteed bit rate, THP (Traffichandling priority), each index implication is as shown in table 1.
In communication network, service quality finally shows as the experience of client to business, impression to network quality, and differential service quality just be embodied in different customers use same when professional and identical client in the network quality service of using the different differentiation that obtained when professional, promptly obtain different network quality impressions.
But, because in the implementation that above-mentioned prior art provides, the otherness index that finally is mapped to UMTS QoS does not comprise (the Allocation/Retention priority to ARP, distribution/maintenance priority) index is controlled, make at present in the differentiation QoS control procedure, PDF lacks the policy control to Allocation/Retention priority index, makes when out-of-resource condition occurs, and the UMTS carrying can't be implemented in the access and the congested control of classification.
That is to say, at present, in wireless network, can't implement the access and the congested control of classification, promptly can't realize corresponding differentiation QoS control well the business in the wireless network or user.
Summary of the invention
The purpose of this invention is to provide a kind of method that in wireless network, realizes the differentiated service quality control, thereby can in wireless network, can realize corresponding differentiation QoS control well, so effectively the classification realization at business or user's access or congested control.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of method that in wireless network, realizes the differentiated service quality control, comprising:
The QoS policy rule of reserving precedence information that comprises that A, strategy decisive function PDF entity will be selected sends to Gateway GPRS Support Node GGSN;
B, GGSN are mapped as universal mobile telecommunications system service quality UMTS QoS with the described qos policy rule of reserving precedence information that comprises;
C, in wireless network, the business of access network is carried out differential service quality control according to described UMTS QoS.
Described method also comprises:
On PDF, the pre-configured qos policy Rule Information of reserving precedence information that comprises.
The described qos policy rule of reserving precedence information that comprises is to be provided with based on business and/or user.
Described steps A comprises:
The PDF entity is selected the corresponding qos policy rule of reserving precedence information that comprises according to type of service that inserts and/or subscriber identity information for it, and sends to GGSN.
Described steps A comprises:
The PDF entity will comprise the qos policy rule of reserving precedence information and send to GGSN after receiving the qos policy request message.
Described steps A also comprises:
User terminal sends packet data protocol PDP context activation request message to Serving GPRS Support Node SGSN, and sends PDP Context request to create message by SGSN to GGSN;
After GGSN receives described PDP Context request to create message, send the qos policy request message to the PDF entity.
In described step B, the reservation precedence information in the described qos policy rule is mapped as distribution/maintenance priority ARP information among the UMTS QoS.
Described step C comprises:
UMTS QoS information after C1, GGSN will shine upon sends to SGSN;
C2, SGSN carry out other local resource of classification according to described UMTS QoS to be handled, and afterwards, sends resource request message by SGSN to radio network controller (RNC);
C3, RNC carry out differential service quality control according to the qos requirement of carrying in the described resource request message to the business of access network.
Described step C3 comprises:
Corresponding business is inserted or congested control according to described qos requirement.
As seen from the above technical solution provided by the invention, realization of the present invention makes PDF can take all factors into consideration the policy informations such as particular demands of service category information and operator, to form the qos policy of differentiation, as QoS grade, the maximum packet rate of up-downgoing, reserve priority etc., thereby can indicate radio bearer to implement the access/congested control of classification, being convenient to provides differential service quality under current limited air interface resource situation, and realizes the service operation that becomes more meticulous.
Description of drawings
Fig. 1 is a UMTS QoS structure system schematic diagram end to end in the prior art;
Fig. 2 is the structure system of a QoS end to end specific implementation schematic diagram provided by the invention;
Fig. 3 is for realizing the processing procedure specific implementation schematic diagram of QoS control signaling.
Embodiment
Under the situation of limited air interface resource, along with the increase of customer volume and carrying out in a large number of multimedia service, just need provide the access and the congestion control mechanism of classification to the Radio Resource reasonable management, differential service quality could be provided better.Therefore, PDF should form the qos policy information of differentiation as the qos policy decision point of whole UMTS network when carrying out the qos policy decision-making, the so final qos policy that could control loading end enforcement differentiation.
Core of the present invention provides a kind of method of QoS service quality of enhancing differentiation of the end-to-end QoS framework based on the UMTS network, how to implement access/congested control and the priority scheduling and the forwarding of classification by PDF indication radio bearer.
Further, the present invention is specially: increase qos policy information on the interface between PDF and the GGSN, promptly reserve priority level, this parameter is used to indicate radio bearer to implement the access/congested control of classification.Afterwards, be converted into the ARP attribute among the UMTS QoS and the control of in whole UTRAN network, holding consultation by GGSN according to reserving priority mapping.
For the present invention there being further understanding, specific implementation of the present invention is elaborated below in conjunction with accompanying drawing.
As shown in Figure 2, in the present invention, Go interface between expansion PDF and the GGSN, increase the priority policy information of reserving, this parameter can be mapped as UMTS QoS attribute ARP (Allocation/Retention priority) on GGSN, the indication radio bearer is implemented the access/congestion control mechanism of classification, the resource that the higher calling of ARP rank can the lower calling of preempting priority takies when inadequate resource, perhaps, the higher calling of Preferred Acceptance rank.
Based on structure shown in Figure 2, concrete QoS control signaling process provided by the invention may further comprise the steps as shown in Figure 3:
Step 31:AF particular type and content according to business after receiving the application request of terminal determined this professional required QoS of survice quality of service requirement, and by and PDF between Gq interface initiate the QoS authorization requests to PDF, wherein, carry the service media component information;
Whether step 32:PDF admits the QoS request according to QoS of survice request and network quality decision, generates and authorizes TOKEN, forms the local QoS strategy, returns band to AF and authorizes the QoS of TOKEN to authorize success response.
Step 33:UE initiates the request of secondary PDP context activation and carries out bearing resource reservation.
Step 34:SGSN carries out the authentication analysis according to the quality of service requirement that UE sends, and initiates the PDP Context request to create to GGSN again.
Step 35:GGSN checks at first whether local resource is available, then, initiates the qos policy request by Go interface to PDF, with the qos policy Rule Information after obtaining the authorization.
Step 36:PDF checks the correctness of binding information, described binding information is comprising the Token that PDF distributes, whether PDF confirms to carry strategy request in view of the above is legal, to improve fail safe, then, for type of service and/or the user who inserts determines corresponding qos policy rule, and to GGSN execution is installed by the qos policy rule that the qos policy decision information issues this type of service and/or user, carrying the qos policy rule in the described qos policy decision information and comprising: the QoS grade, UL (up link)/DL (down link) packet rate, reserve priority, IP filter information etc.;
Wherein, described reservation precedence information is pre-configured and is stored among the PDF, and, described reservation precedence information is for to dispose based on type of service or based on user's (being subscriber identity information), perhaps, based on type of service and user's integrated configuration, promptly reserving precedence information accordingly can be index with type of service or subscriber identity information only, can be index with type of service and subscriber identity information simultaneously also; Therefore, in this step, after PDF receives the qos policy request message, just can determine corresponding reservation precedence information, and be carried in the qos policy decision information and be handed down to GGSN according to the equipping rules of reserving priority.
Step 37:GGSN receives from behind the qos policy of the PDF decision-making configuration messages, the IP QoS in the message (being the qos policy rule) information mapping is the UMTS QoS after authorizing;
Wherein, authorize back UMTS QoS information specifically to comprise: parameters such as Traffic Class, Maximum bitrate, Guaranteed bit rate, THP and ARP, wherein, described ARP parameter is for definite according to the mapping of the reservation precedence information in the strategic decision-making configuration messages that receives;
Simultaneously, carry out QoS based on the UMTS QoS of this mandate and consult, continue PDP Context secondary activating flow process, return the PDP context activation response to SGSN.
Step 38:GGSN returns qos policy decision-making success response to PDF, comprises the UMTS QoS information after the described mandate in the described response message;
The UMTS QoS quality of service requirement that SGSN proposes according to GGSN carries out the distribution local resource of classification to be handled, and then, sends resource request message to RNC, and the information of carrying in the message comprises the UMTS QoS information after the described mandate;
RNC is according to SGSN quality of service requirement application resource that sends and the access/congested control and treatment of carrying out classification, be specially: carry out accordingly access or congested control based on type of service and/or user's classification according to the ARP parameter in the quality of service requirement, and then realize QoS control at different service types and/or user's differentiation, finally realized for the business realizing of different access networks different QoS control; As when can be implemented in inadequate resource, the access of the business of refusal low priority, the business of admitting high priority;
Simultaneously, SGSN also returns PDP Context secondary activating success response message to UE.
Step 39:UE receives the success response of PDP Context secondary activating, represents that whole radio bearer resources reserves successfully, can begin media stream.
As can be seen, because in said process, PDF has determined corresponding reservation precedence information, thereby makes in follow-up differentiation QoS control procedure, can realize the access or the congested control of classification according to described reservation priority.
In sum, among the present invention, the decision informations such as specific needs of taking all factors into consideration service category information and operator by PDF form differentiation and comprise the qos policy of reserving precedence information, thereby can indicate radio bearer to implement the access/congested control of classification, making provides differential service quality under current limited air interface resource situation, realize the service operation that becomes more meticulous.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (9)
1, a kind of method that realizes the differentiated service quality control in wireless network is characterized in that, comprising:
The QoS policy rule of reserving precedence information that comprises that A, strategy decisive function PDF entity will be selected sends to Gateway GPRS Support Node GGSN;
B, GGSN are mapped as universal mobile telecommunications system service quality UMTS QoS with the described qos policy rule of reserving precedence information that comprises;
C, in wireless network, the business of access network is carried out differential service quality control according to described UMTS QoS.
2, method according to claim 1 is characterized in that, described method also comprises:
On PDF, the pre-configured qos policy Rule Information of reserving precedence information that comprises.
3, method according to claim 2 is characterized in that, the described qos policy rule of reserving precedence information that comprises is to be provided with based on business and/or user.
4, method according to claim 1 is characterized in that, described steps A comprises:
The PDF entity is selected the corresponding qos policy rule of reserving precedence information that comprises according to type of service that inserts and/or subscriber identity information for it, and sends to GGSN.
5, method according to claim 1 is characterized in that, described steps A comprises:
The PDF entity will comprise the qos policy rule of reserving precedence information and send to GGSN after receiving the qos policy request message.
6, method according to claim 5 is characterized in that, described steps A also comprises:
User terminal sends packet data protocol PDP context activation request message to Serving GPRS Support Node SGSN, and sends PDP Context request to create message by SGSN to GGSN;
After GGSN receives described PDP Context request to create message, send the qos policy request message to the PDF entity.
7, according to each described method of claim 1 to 6, it is characterized in that, in described step B, the reservation precedence information in the described qos policy rule is mapped as distribution/maintenance priority ARP information among the UMTS QoS.
8, method according to claim 7 is characterized in that, described step C comprises:
UMTS QoS information after C1, GGSN will shine upon sends to SGSN;
C2, SGSN carry out other local resource of classification according to described UMTS QoS to be handled, and afterwards, sends resource request message by SGSN to radio network controller (RNC);
C3, RNC carry out differential service quality control according to the qos requirement of carrying in the described resource request message to the business of access network.
9, method according to claim 8 is characterized in that, described step C3 comprises:
Corresponding business is inserted or congested control according to described qos requirement.
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| CNA2006100332286A CN101005440A (en) | 2006-01-21 | 2006-01-21 | Metod for realizing different service quality control in radio network |
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