CN101640952A - System for realizing heterogeneous network QoS dynamic mapping and method thereof - Google Patents
System for realizing heterogeneous network QoS dynamic mapping and method thereof Download PDFInfo
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Abstract
The invention relates to a system for realizing heterogeneous network QoS dynamic mapping and a method thereof. The system comprises a CQA and an AQA; the AQA is configured at an access end for classifying and dynamically parameter matching the QoS which is accessed into the network and sending QoS control information which is generated by the QoS classifying and parameter matching information which is accessed into the network to the CQA; when dynamic QoS adjustment is required, the QoS control information is updated and sent to the CQA; and the CQA is configured at a core network end for building QoS initiate homeostatic mapping according to the QoS control information sent by the AQA and adjusting QoS mapping relationship according to the updated QoS control information sent by the AQA.Therefore, the system and the method guarantee the operation of the service quality of the heterogeneous network, optimize network resource management, and maximally obtain better customer satisfaction.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of system and the method thereof that in heterogeneous network, can carry out the dynamic mapping of corresponding QoS classification according to the network real-time change.
Background technology
Fast development along with the communication technology, various communication system networks such as UMTS (network of universal mobile communication system), IEEE 802.11WLAN (WLAN), IEEE 802.16WMAN (wireless MAN), GPRS/EDGE (GPRS/enhanced data rates for gsm evolution technology), TD-SCDMA (TDS-CDMA system), CDMA2000 (CDMA 2000 system), WCDMA (broadband CDMA system), Bluetooth (Bluetooth technology) etc. emerges in an endless stream, but various communication system networks are each have their own characteristic and advantage aspect the guarantee of professional ability and QoS of customer, is difficult to occur a kind of grid has absolute predominance with respect to the other system network situation.Therefore, multiple different communication systems access network has promptly constituted a kind of heterogeneous network, and the having service quality (Quality of Service, QoS) business experience of Bao Zhanging will be a big key character of heterogeneous network of the network coexisted cooperation of plurality of communication systems wherein for the user provides colourful.
Wherein, the access network of different technologies has different covering powers, amount of capacity and to different QoS tenability of business etc.For example the UMTS network can all be very limited with present technical merit but defective is its amount of bandwidth, terminal energy consumption, cost etc. with the high-speed mobile communication of terminal in the QoS ability support reliably in a big way; Satellite network can be supported ubiquitous communication in the global range, but its QoS supportability relatively a little less than; Though and broadband wireless communications such as WLAN, WiMAX etc. has bigger bandwidth, higher data rate, lower advantages such as cost, its covering power is but very limited.
In this kind heterogeneous network, the user can wait according to the type of service of initiating, residing network environment, to the power of qos requirement and select suitable access network to communicate, thereby obtains maximum communication efficiency; Wherein, when QoS session end to end will be crossed over a plurality of different network type, the all-network that often needs to relate to can be consulted QoS successively, and handled the QoS demand with its unique mode.Therefore, classification of the QoS on the different type network and qos parameter can shine upon mutually and promptly become the major issue that heterogeneous network need solve.
At this, in the prior art multiple solution is arranged at present, but the inventor finds after scrutinizing those schemes, there is tangible deficiency: promptly, what present classification map mechanism for QoS adopted is the static scheme that mostly is at two specific networks, that is to say, once business connects, after having built end to end the QoS mapping relations, it often will keep always, till service ending; Yet it can not be adjusted the QoS mapping relations between heterogeneous network dynamically according to the real-time change of network, seems very dumb, thereby can not farthest ensure user satisfaction, can not farthest guarantee QoS end to end.
Summary of the invention
In view of this, the invention provides a kind of the heterogeneous network QoS dynamically system and method thereof of mapping of realizing, can be at heterogeneous network end-to-end QoS security problem, carry out the business classification according to the type of service characteristics in each network, and change according to the real-time performance of each network, carry out corresponding QoS grade and dynamically adjust, thereby original mapping is repartitioned, realize the efficient utilization of resource, obtain reasonable user satisfaction to greatest extent.
For addressing the above problem, technical scheme provided by the invention is as follows:
A kind of dynamically system of mapping of heterogeneous network QoS that realizes comprises: CQA and AQA; Wherein, described AQA is deployed in the Access Network end, is used for the QoS in the described Access Network is classified and dynamic parameter matching, and will sends to described CQA by the QoS control information that QoS classification and parameter matching information in the described Access Network generate; When dynamic QoS is adjusted demand, upgrade described QoS control information and send to described CQA;
Described CQA is deployed in the core net end, and the preliminary stable state mapping of QoS is created in the QoS control information that is used for sending according to described AQA, adjusts described QoS mapping relations according to the QoS control information after the renewal of described AQA transmission.
A kind of dynamically method of mapping of heterogeneous network QoS that realizes comprises:
QoS in the current Access Network is classified and dynamic parameter matching, and it is generated as the QoS control information sends to network equipment, so that network equipment is created the preliminary stable state mapping of QoS according to described QoS control information;
When dynamic QoS is adjusted demand, upgrade described QoS control information and send to described network equipment, so that described QoS mapping relations are adjusted in the QoS control information of described network equipment after according to described renewal, finish the dynamic mapping of QoS.
As can be seen, adopt system and method for the present invention, carry out more careful classification and dynamic parameter matching by QoS to Access Network, and create the QoS mapping relations with this, when QoS dynamically adjusts demand, by mapping parameters is upgraded in the promotion and demotion of QoS classification grade, and then adjust QoS mapping dynamically, thereby guaranteed the running of heterogeneous network service quality, optimized network resource management, and obtained user satisfaction preferably to greatest extent.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the distribution schematic diagram of each several part in network of the embodiment of the invention 1 system;
Fig. 2 is that the each several part of the embodiment of the invention 2 systems is formed structural representation;
Fig. 3 is that the each several part of the embodiment of the invention 3 systems is formed structural representation;
Fig. 4 is that the each several part of the embodiment of the invention 4 systems is formed structural representation;
Fig. 5 is that the each several part of the embodiment of the invention 5 systems is formed structural representation;
Fig. 6 is that the each several part of the embodiment of the invention 6 systems is formed structural representation;
Fig. 7 is the method flow schematic diagram of the embodiment of the invention 7;
Fig. 8 is the method flow schematic diagram of the embodiment of the invention 8.
Embodiment
Basic thought of the present invention is at present stage more rough for QoS classification map mechanism, and the problem that can't dynamically adjust in real time, proposition on heterogeneous network at the further careful division of the different grades of service, each grade of service is divided into the sub-grade that can be used for the QoS guarantee again, adjust principle according to this, adopted the method for qos parameter control, promptly adopt professional promotion and demotion to change mapping parameters, according to the access network performance, dynamically adjust the QoS classification map, thereby guaranteed the running of heterogeneous network service quality, optimized network resource management, and obtained user satisfaction preferably to greatest extent.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described; Obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Referring to Fig. 1, the distribution schematic diagram of each several part in network of the realization QoS dynamic mapping system that Fig. 1 provides for the embodiment of the invention 1; As shown in Figure 1, this system comprises: at least one AQA100 (Access Network QoS agency, AN QoS Agent) and CQA200 (core net QoS agency, CN QoSAgent); Wherein,
Described AQA100 is deployed in the Access Network end, promptly is positioned on the gateway that connects Access Network and core net; Network performance information in the described AQA100 of Access Network end collects its place Access Network and QoS information are finished QoS classification and dynamic parameter matching in single net alone; Initially set up in the process in the QoS classification map, described AQA100 sends to core net CQA200 and comprises the QoS control information that request is set up in the QoS mapping, and this QoS control information is generated by classification of the QoS in the described Access Network and dynamic parameter matching information; After the preliminary classification mapping is set up, when dynamic QoS is adjusted demand, AQA100 triggers the dynamic mapping adjustment state that enters, upgrade described QoS control information, promptly classification of the QoS in the described Access Network and parameter matching information are upgraded, and send to described CQA200 and to comprise the renewal QoS control information that the QoS mapping dynamically updates request, the information after upgrading is sent to described CQA200;
Described CQA200 is deployed on the online Control Node of core net or Internet, also can directly be deployed on the Internet; Initially set up in the process in the QoS dynamic mapping of classifying, after described CQA200 receives the QoS control information that comprises QoS mapping foundation request of described AQA100 transmission, Access Network to this requesting party is registered, create memory space in order to store the QoS classified information and the map information of described Access Network and core net, set up preliminary stable state mapping, return to AQA100 then and set up successful response message; In the QoS dynamic adjustment phase, when receive that described AQA100 sends comprise the QoS mapping and dynamically update the renewal QoS control information of request after, therefrom extract QoS classification and parameter matching information after the described renewal, and adjust described QoS mapping relations according to the information after this renewal, be classified information and map information, finish dynamic mapping adjustment process; Wherein, the QoS classified information of the memory space storage of described establishment comprises the classification of the Access Network grade of service and QoS demand parameter, the classification of the core net grade of service and QoS demand parameter thereof etc. at least, and described map information comprises many network mappings registration table and mapping relations table etc. at least.
Referring to Fig. 2, Fig. 2 forms structural representation (only describing with two AQA100) for the each several part of the realization QoS dynamic mapping system that the embodiment of the invention 2 provides; As shown in Figure 2, the basic structure of the system that present embodiment 2 provides and the foregoing description 1 system is similar, and difference is that described CQA200 comprises: first communication unit 210 and map updating unit 220; Wherein,
Described first communication unit 210 is mainly used in described AQA100 and carries out information interaction, and the QoS mapping of comprising that receives set up the QoS control information of request or comprise the renewal QoS control messages that the QoS mapping dynamically updates request and resolve, Access Network QoS parameter information that then parsing is obtained or renewal back Access Network QoS parameter information, QoS classification and parameter matching information after QoS classification soon and parameter matching information and the renewal are handed to described map updating unit 220, and the result with described map updating unit 220 feeds back to AQA100 by message again;
Described map updating unit 220 is mainly used in the Access Network QoS parameter information that forwards according to described first communication unit 210 that receives this requesting party's Access Network is registered, create memory space in order to store the QoS classified information and the map information of described Access Network and core net, set up preliminary stable state mapping, and adjust described QoS mapping relations according to the Access Network QoS parameter information after the renewal that forwards from described first communication unit 210, promptly upgrade described QoS classified information and map information, the result with various operations sends to described first communication unit 210 then.
Referring to Fig. 3, the each several part of the realization QoS dynamic mapping system that Fig. 3 provides for the embodiment of the invention 3 is formed another schematic diagram (only describing with two AQA100) of structure; As shown in Figure 3, the basic structure of the system that present embodiment 3 provides and the foregoing description 2 systems is similar, and difference is that first communication unit 210 among the described CQA200 also comprises: receiver module 211, forwarding module 212, recycling module 213 and loopback module 214; Wherein,
Described receiver module 211 is used to receive the QoS control messages that described AQA100 sends, and this QoS control messages comprises QoS mapping foundation request or the QoS mapping dynamically updates request; Described forwarding module 212 is used for the QoS control messages that described receiver module 211 receives is resolved: request is set up in mapping if this QoS control information comprises QoS, then therefrom extracts the qos parameter information of Access Network; Mapping dynamically updates request if this QoS control information comprises QoS, then therefrom extract the Access Network QoS parameter information after the renewal, Access Network QoS classification and parameter matching information after also promptly upgrading are specially the grade of service of the Access Network that needs renewal in the present embodiment and need the corresponding qos parameter that upgrades etc.; The information that parsing is obtained is transmitted to described map updating unit 220 again; Described recycling module 213 is used to collect the result of described map updating unit 220, and sends to described loopback module 214; Described AQA100 is given in the result loopback that described loopback module 214 is used for described recycling module 213 is collected; Wherein, this result also can send by message, message such as the request of for example setting up responds, update request responds, set up failure, renewal failure, but be not limited thereto.
Referring to Fig. 4, the each several part of the realization QoS dynamic mapping system that Fig. 4 provides for the embodiment of the invention 4 is formed the another schematic diagram (only describing with two AQA100) of structure; As shown in Figure 4, the basic structure of the system that present embodiment 4 provides and the foregoing description 2 systems is similar, and difference is that the map updating unit 220 among the described CQA200 also comprises: creation module 221, update module 222 and feedback module 223; Wherein,
Described creation module 221 is used for according to the Access Network QoS parameter information that receives from described first communication unit 210 this requesting party's Access Network being registered, create a database in order to store the QoS classified information and the map information of described Access Network and core net, set up preliminary stable state mapping, and result is sent to described feedback module 223; Wherein, the QoS classified information of storing in the described database comprises the classification of the Access Network grade of service and QoS demand parameter, the classification of the core net grade of service and QoS demand parameter thereof etc. at least, and described map information comprises many network mappings registration table and mapping relations table etc. at least;
It should be noted that, the process of setting up of described stable state mapping is the foundation of first QoS mapping, it promptly is the general state of QoS mapping, be that each network is tending towards the QoS mapping under the ideal stability state: it is registration each network (Access Network, core net) in described many network mappings registration table normally, each network according to the ID list storage grade of service of corresponding network and the details such as parameter of each grade thereof; And utilize described mapping relations table to show the QoS grade mapping relations of each Access Network and core net.
Access Network QoS parameter information after the renewal that described update module 222 is used for forwarding according to described first communication unit 210 is adjusted the QoS mapping relations of the preliminary stable state mapping that described creation module 221 created, promptly upgrade described QoS classified information and map information, again result is sent to described feedback module 223; Wherein, in the specific implementation, the renewal Access Network QoS parameter information that described update module 222 utilizes described first communication unit 210 to transmit, upgrade the information in described many network mappings registration table and the described mapping relations table about this Access Network, finish the Data Update of described many network mappings registration table and mapping relations table, thereby realized this process of dynamic mapping.
Referring to Fig. 5, Fig. 5 forms structural representation (only describing with two AQA100) for the each several part of the realization QoS dynamic mapping system that the embodiment of the invention 5 provides; As shown in Figure 5, the basic structure of the system that present embodiment 5 provides and the foregoing description 1 system is similar, and difference is that described AQA100 comprises: second communication unit 110 and information control unit 120; Wherein,
Described second communication unit 110 is mainly used in the network performance and the QoS information of collecting in its place Access Network, be notified to described information control unit 120, receiving the qos parameter information that described information control unit 120 sends, the arrangement of finishing information gathers the back and generates and comprise the QoS mapping and set up the QoS control messages that request or QoS mapping dynamically update request, by with the QoS information interaction of described CQA210, described QoS control information is sent; Wherein, described qos parameter information comprises that the QoS after QoS classification and dynamic parameter matching information or the renewal classifies and dynamic parameter matching information;
Described information control unit 120 is used for the QoS in its place Access Network is classified and operation such as parameter matching, and when having dynamic QoS to adjust demand, described QoS classification and parameter matching information is upgraded, and sends to described second communication unit 110 then.
Referring to Fig. 6, Fig. 6 forms structural representation (only describing with two AQA100) for the each several part of the realization QoS dynamic mapping system that the embodiment of the invention 6 provides; As shown in Figure 6, the basic structure of the system that present embodiment 6 provides and the foregoing description 5 systems is similar, and difference is that the information control unit 120 among the described AQA100 also can comprise: grade classification module 121, class parameter matching module 122, monitoring resource module 123 and coupling adjusting module 124; Wherein,
Described grade classification module 121 is used for the business in the Access Network is carried out grade classification, and all business in this Access Network according to the relevant sorting technique of this Access Network, are put into different categories and the storage service class information according to priority; Wherein, its sorting technique of different Access Networks also is not quite similar, for example: when Access Network is UMTS, it is divided according to conversation class, Streaming Media class, interactive class, four grades of service of background classes; When for example Access Network is WLAN again, its business is divided into 1-7 the grade of service, its QoS then requires to improve step by step; Concrete this paper repeats no more.
Described class parameter matching module 122 is used to the corresponding qos parameter of each grade traffic assignments in the described grade classification module 121 ready-portioned grades of service and stores the qos parameter information of each grade of service, and the parameter of wherein said distribution includes but not limited to time delay, packet loss, shake etc.; For example when Access Network is UMTS, the parameter of distributing for wherein session service is: time delay＜0.1s, packet loss＜3%; Simultaneously, described class parameter matching module 122 also is used for each grade of service is carried out sub-grade classification at its parameter area, be about to each grade of service and be divided into several little grades, so be divided in and when QoS dynamically adjusts demand, can be more convenient for carrying out parameter update; Concrete, in the specific implementation, usually each grade of service is divided into ten sub-grades, and then provides foundation for the scope of dynamically adjusting; Then, described class parameter matching module 122 can send to described second communication unit 110 with various operating results.
Described monitoring resource module 123 is used for the reserved resource in the described Access Network is monitored in real time, and by monitored results and the resource threshold of presetting are compared, and comparative result sent to described coupling adjusting module 124, so that described coupling adjusting module 124 can be determined its adjustment that should make action; It should be noted that described default resource threshold also is not quite similar according to the difference of Access Network.
Described coupling adjusting module 124 is used for the resource comparison information according to described monitoring resource module 123 transmission, make corresponding qos parameter and adjust strategy, and the parameter information that described class parameter matching module 122 is determined is made real-time adjustment upgrade, qos parameter information after will upgrading then sends to described second communication unit 110, realizes that finally the qos parameter of Access Network end is dynamically adjusted; Wherein, described adjustment strategy includes but not limited to: QoS classification grade degradation or upgrading etc.; For example:, then promptly carry out QoS classification grade degradation this moment if the resource comparison that described monitoring resource module 123 sends shows described reserved resource less than default tight threshold value; If described reserved resource is greater than default loose threshold value, and QoS classification grade degradation having taken place, will carry out the upgrading of QoS classification grade this moment, makes it reach normal condition;
Especially it should be noted that when described coupling adjusting module 124 carries out the qos parameter adjustment, need follow following rule:
1), when described QoS classification grade degradation, should at first adjust low priority traffice, and then adjust high-priority service; And when adjusting, at first should in the current classification grade of described business, carry out trickle adjustment, and then stride level adjustment; When striding the level adjustment, the current business registration can only be degraded to next grade at most, a plurality of grades that can not descend are to guarantee that such business does not have violent quality and descends; Simultaneously, when adjusting, degradation need guarantee that real time business can not will be non-real-time service;
2), when the upgrading of described QoS classification grade, should at first adjust high-priority service, and then adjust low priority traffice; And when adjusting, at first should stride level adjustment, thereby make that grade business of degradation took place to stride gets back to former grade; After described business is got back to former grade, carry out fine setting in the grade again, get back to original normal condition period;
Wherein, generally described highest ranking is a real time business, and the lowest class is a non-real-time service.
It should be noted that in embodiments of the present invention, have a plurality of Access Networks in the heterogeneous network, and each Access Network all needs and core net is set up mapping, and core net is as the intermediate state of QoS mapping, logically realized the QoS mapping between two Access Networks;
Certainly, those skilled in the art readily understand that the different parts that every part comprised in the various embodiments described above system other parts relatively occur separately, also can occur simultaneously and combine to realize the function of described system, do not repeat them here.
As can be seen, adopt the system of the embodiment of the invention, carry out more careful classification and dynamic parameter matching by QoS to Access Network, and create the QoS mapping relations with this, when QoS dynamically adjusts demand, by mapping parameters is upgraded in the promotion and demotion of QoS classification grade, and then adjust QoS mapping dynamically, thereby guaranteed the running of heterogeneous network service quality, optimized network resource management, and obtained user satisfaction preferably to greatest extent.
Based on above-mentioned thought, the embodiment of the invention 7 has proposed a kind of dynamically method of mapping of heterogeneous network QoS that realizes again, and as shown in Figure 7, this method comprises:
In step 701, the QoS in the current Access Network is classified and dynamic parameter matching, and it is generated as the QoS control information sends to network equipment, so that network equipment is created the preliminary stable state mapping of QoS according to described QoS control information;
Concrete, at first collect network performance information and QoS information in the Access Network of place, and the QoS that finishes in single net classifies and dynamic parameter matching, after the QoS classification map is initially set up process and is begun, comprise the QoS control information that request is set up in the QoS mapping to described network equipment (being generally core net CQA200) transmission, this QoS control information system is classified by the QoS in the described Access Network and dynamic parameter matching information generates; Simultaneously initially set up in the process in the QoS dynamic mapping of classifying, described network equipment is according to the described QoS control information that comprises QoS mapping foundation request, store the QoS classified information and the map information of described Access Network and core net, finish and set up preliminary stable state mapping, return then and set up successful response message; Wherein, in the specific implementation, can classify and dynamic parameter matching by the QoS that following steps are finished in the Access Network, but be not limited thereto:
1), the business in the Access Network is carried out grade classification, all business in this Access Network according to the relevant sorting technique of this Access Network, is put into different categories and the storage service class information according to priority; Wherein, its sorting technique of different Access Networks also is not quite similar, for example: when Access Network is UMTS, it is divided according to conversation class, Streaming Media class, interactive class, four grades of service of background classes; When for example Access Network is WLAN again, its business is divided into 1-7 the grade of service, its QoS then requires to improve step by step; Concrete this paper repeats no more.
2), for the corresponding qos parameter of each grade traffic assignments in the described ready-portioned grade of service and store the qos parameter information of each grade of service, the parameter of wherein said distribution includes but not limited to time delay, packet loss, shake etc.; For example when Access Network is UMTS, the parameter of distributing for wherein session service is: time delay＜0.1s, packet loss＜3%; Simultaneously, also each grade of service is carried out sub-grade classification at its parameter area, be about to each grade of service and be divided into several little grades, so be divided in and when QoS dynamically adjusts demand, can be more convenient for carrying out parameter update; Concrete, in the specific implementation, usually each grade of service is divided into ten sub-grades, and then provides foundation for the scope of dynamically adjusting.
In addition, send the QoS control information so that it can create preliminary stable state mapping by following steps to described network equipment:
According to described Access Network QoS control information described Access Network is registered, created a database then,, set up preliminary stable state mapping in order to store the QoS classified information and the map information of described Access Network and core net; Wherein, the QoS classified information of storing in the described database comprises the classification of the Access Network grade of service and QoS demand parameter, the classification of the core net grade of service and QoS demand parameter thereof etc. at least, and described map information comprises many network mappings registration table and mapping relations table etc. at least; It should be noted that, the process of setting up of described stable state mapping is the foundation of first QoS mapping, it promptly is the general state of QoS mapping, be that each network is tending towards the QoS mapping under the ideal stability state: it is registration each network (Access Network, core net) in described many network mappings registration table normally, each network according to the ID list storage grade of service of corresponding network and the details such as parameter of each grade thereof, and utilize described mapping relations table to show the QoS grade mapping relations of each Access Network and core net; Certainly, concrete constructive process also can adopt existing mode to carry out, and repeats no more herein.
In step 702, when dynamic QoS is adjusted demand, upgrade described QoS control information and send to described network equipment,, finish the dynamic mapping of QoS so that described QoS mapping relations are adjusted in the QoS control information of described network equipment after according to described renewal.
Concrete, after the preliminary classification mapping is set up, when dynamic QoS is adjusted demand, triggering enters dynamic mapping and adjusts state, upgrade described QoS control information, promptly classification of the QoS in the described Access Network and parameter matching information are upgraded, and send to network equipment and to comprise the renewal QoS control information that the QoS mapping dynamically updates request, information after upgrading is sent, thereby make network equipment from the described QoS of comprising mapping dynamically updates the renewal QoS control information of request, extract QoS classification and the parameter matching information after the described renewal, and adjust described QoS mapping relations according to the information after this renewal, be classified information and map information, finish dynamic mapping adjustment process;
In practical operation, can realize the renewal of QoS classification and parameter matching information in the following manner:
Monitor the reserved resource in the described Access Network in real time, and monitored results and the resource threshold of presetting are compared; Wherein, described default resource threshold also is not quite similar according to the difference of Access Network;
Make corresponding qos parameter according to resource comparison again and adjust strategy, and the described qos parameter class information of having divided is made real-time adjustment upgrade; And described adjustment strategy includes but not limited to: QoS classification grade degradation or upgrading etc.; For example: if described reserved resource less than default tight threshold value, is then carried out QoS classification grade degradation this moment; If described reserved resource is greater than default loose threshold value, and QoS classification grade degradation having taken place, carried out the upgrading of QoS classification grade this moment, makes it reach normal condition;
Especially it should be noted that present embodiment when described qos parameter is adjusted, follows following rule:
1), when described QoS classification grade degradation, should at first adjust low priority traffice, and then adjust high-priority service; And when adjusting, at first should in the current classification grade of described business, carry out trickle adjustment, and then stride level adjustment; When striding the level adjustment, the current business grade can only be degraded to next grade at most, a plurality of grades that can not descend are to guarantee that such business does not have violent quality and descends; Simultaneously, when adjusting, degradation need guarantee that real time business can not will be non-real-time service;
2), when the upgrading of described QoS classification grade, should at first adjust high-priority service, and then adjust low priority traffice; And when adjusting, at first should stride level adjustment, thereby make that grade business of degradation took place to stride gets back to former grade; After described business is got back to former grade, carry out fine setting in the grade again, get back to original normal condition period;
Wherein, generally described highest ranking is a real time business, and the lowest class is a non-real-time service.
Having QoS to shine upon dynamic adjustment demand with concrete two Access Network X and Y when inserting core net below is example, to above-mentioned realization heterogeneous network QoS dynamically the method for mapping be elaborated, the embodiment of the invention 8 as shown in Figure 8, wherein:
In S801, when Access Network X communicates by core net Z and Access Network Y, at first in each Access Network, its access service is carried out QoS classification and dynamic parameter matching, again that each is big classification grade is divided equally ten five equilibriums (0-9), so that when dynamically adjusting, can carry out fine-grained adjustment, then qos parameter is notified to core net it is registered in the QoS mapping table, finish the QoS mapping and set up;
In S802, the resource reservation situation in the real time monitoring network, and tight threshold value of default resource and resource pine threshold value;
In S803, detect degradation or upgrading that whether current business crossgrade took place, if then enter into S804; Otherwise, enter into S805;
In S804,, then upgrade described qos parameter and notify core net to upgrade the QoS mapping relations if the degradation or the upgrading of crossgrade took place;
In S805, judge that whether reserved resource is less than tight threshold value, if enter into S806; Otherwise, enter into S819;
In S806, when reserved resource during, illustrate that current network resources is in short supply less than tight threshold value, need carry out the dynamic adjustment of QoS classification grade; Follow the principle of at first adjusting low priority and at first at the corresponding levels, adjusting, detect the minimum sub-grade (the 0th grade) whether the lowest class business reaches this grade earlier, if enter into S808; Otherwise, enter into S807;
In S807, if current grade business is not reduced to the minimum sub-grade of this grade as yet, then should business reduce a sub-grade, get back to S802 then and continue monitoring;
In S808, if current grade business has been reduced to the minimum sub-grade of this grade, and should business not be the highest grade of service of this Access Network, check then whether a grade business reaches the minimum sub-grade of this grade (the 0th grade) on it, if enter into S809; If not, enter into S807;
In S809, if current grade business has been reduced to the minimum sub-grade of this grade, check at first then whether current grade is highest ranking, if, then enter into S810, stride the level degradation; Otherwise, enter into S808, continue to check a last grade business;
In S810, if business at different levels has all been reduced to corresponding minimum sub-grade (the 0th grade), and resource is still not enough, carries out the level of striding of QoS classification grade this moment and demotes; But because the lowest class can not be reduced to next stage, otherwise with interrupting service, so at first consider time inferior grade business; And because real time business can not be reduced to non-real-time service, whether be real time business so at first detect time inferior grade business, if enter into S811; Otherwise, enter into S814;
In S811, if current grade is a real time business, then can not stride the level degradation, continue to check a grade business on it, can determine that the business after it is a real time business all this moment, whether be real time business so need not to detect;
In S812, judge that the QoS whether current grade business reduces to its next grade guarantees sub-grade (the 6th grade), if then enter into S813; If not, then enter into S815;
In S813,, check at first then whether current grade is highest ranking, if then enter into S818, the information resource scarcity if the QoS that current grade business has been reduced to its next grade guarantees sub-grade (the 6th grade); If not, then enter into S811, continue it and check a last grade business;
In S814,, then detect the QoS whether current grade business reduce to its next grade and guarantee sub-grade (the 6th grade), if then enter into S816 if current grade business is a non-real-time service; If not, then enter into S815;
In S815, if the QoS that current grade business is not reduced to its next grade as yet guarantees sub-grade (the 6th grade), then should business reduce a sub-grade, get back to S802 then and continue monitoring;
In S816,, then continue to check a grade business on it if the QoS that current grade business has been reduced to its next grade guarantees sub-grade (the 6th grade);
In S817, if next grade of current grade business still is a non-real-time service, whether be real time business, if enter into S811 if then at first detecting current grade business; If not, enter into S814;
In S818, owing to finish after the aforementioned QoS classification grade degradation, Internet resources are still in short supply, and then prompting can't be adjusted to normal condition, gets back to S802 then and continues monitoring;
In S819,, then detect reserved resource whether greater than loose threshold value, if enter into S820 if reserved resource, illustrates that Internet resources are not in short supply greater than tight threshold value; If not, get back to S802 and continue monitoring;
In S820, if reserved resource, illustrates that current network resources is abundant greater than loose threshold value, if this moment, the dynamic adjustment that the QoS classification grade is demoted once took place current business, then carry out the upgrading of QoS classification grade, to guarantee that each business recovery is to normal classification status level; The principle of recovering high priority and recovering to stride the level degradation is earlier earlier followed in the adjustment of this moment, detects the highest ranking business and whether reduces to its next grade, if then enter into S821; If not, then enter into S822;
In S821, if current grade business was once reduced to its next grade, sub-grade of business rising of degradation then current grade is taken place, get back to S802 then and continue monitoring;
In S822,, then detect its next grade business if current grade business is not reduced to its next grade;
In S823, detect current grade business and whether reduce to its next grade, if then enter into S821; If not, then enter into S824;
In S824,, then need the branch situation to handle: when current grade business is real time business, not deal with if current grade business is not reduced to its next grade; Current grade is professional when being the lowest class, and whether detect current grade business is the lowest class business, if, then enter into S825, illustrate to adjust and finish all and stride a grade degradation situation; If not, then enter into S822, continue its next grade business of monitoring;
In S825, finish all and stride a grade degradation situation if adjusted, then carry out the recovery of the sub-grade in the QoS classification grade: detect the highest ranking business and whether once reduced sub-grade, if then enter into S821 in this grade; If not, then enter into S826;
In S826,, then detect its next grade business if current grade business did not reduce sub-grade in this grade;
In S827, detect current grade business and whether once reduced sub-grade, if then enter into S821 in this grade; If not, then enter into S828;
In S828, whether be the lowest class, if then enter into S829, the information abundant resource if detecting current grade; If not, then enter into S826, continue it and check next grade business;
In S829, after finishing aforementioned QoS classification grade recovery, Internet resources are still more than needed, then point out Internet resources abundant, get back to S802 then and continue monitoring.
It will be understood by those skilled in the art that and to use many different technologies and in the technology any one to come expression information, message and signal.For example, the message of mentioning in the above-mentioned explanation, information can be expressed as voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or above combination in any.
The professional can also further should be able to recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each specific should being used for, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1, a kind of dynamically system of mapping of heterogeneous network QoS that realizes is characterized in that, comprising: CQA and AQA; Wherein, described AQA is deployed in the Access Network end, is used for the QoS in the described Access Network is classified and dynamic parameter matching, and will sends to described CQA by the QoS control information that QoS classification and parameter matching information in the described Access Network generate; When dynamic QoS is adjusted demand, upgrade described QoS control information and send to described CQA;
Described CQA is deployed in the core net end, and the preliminary stable state mapping of QoS is created in the QoS control information that is used for sending according to described AQA, adjusts described QoS mapping relations according to the QoS control information after the renewal of described AQA transmission.
2, system according to claim 1 is characterized in that, described CQA comprises: first communication unit and map updating unit; Wherein,
Described first communication unit is used for carrying out information interaction with described AQA, the QoS control messages that comprises that receives is resolved, the Access Network QoS parameter information that parsing is obtained or the qos parameter information of renewal are handed to described map updating unit, and the result of described map updating unit is fed back to AQA by message;
Described map updating unit is used for according to described Access Network QoS parameter information described Access Network being registered, set up preliminary stable state mapping by creating in order to the memory space of storing described Access Network and core net QoS classified information and map information, and adjust described QoS mapping relations according to the qos parameter information after described renewal, the result with various operations sends to described first communication unit again.
3, system according to claim 2 is characterized in that, described first communication unit comprises: receiver module, forwarding module, recycling module and loopback module; Wherein,
Described receiver module is used to receive the QoS control messages that described AQA sends;
The QoS control messages that described forwarding module is used for described receiver module is received is resolved, and the information that parsing is obtained is transmitted to described map updating unit again;
Described recycling module is used to collect the result of described map updating unit, and sends to described loopback module;
Described AQA is given in the result loopback that described loopback module is used for described recycling module is collected.
4, system according to claim 2 is characterized in that, described map updating unit comprises: creation module, update module and feedback module; Wherein,
Described creation module is used for according to described Access Network QoS parameter information described Access Network being registered, and creates in order to storing the database of described Access Network and core net QoS classified information and map information, and result is sent to described feedback module;
Described update module is used for result being sent to described feedback module according to described QoS classified information of the qos parameter information updating of described renewal and map information again.
5, system according to claim 1 is characterized in that, described AQA comprises: second communication unit and information control unit; Wherein,
Described second communication unit is used to collect network performance and the QoS information in its place Access Network, and be notified to described information control unit, the qos parameter information that described information control unit is sent generates the QoS control messages again, by with the QoS information interaction of described CQA, described QoS control information is sent; Wherein, described qos parameter information comprises that the QoS after QoS classification and dynamic parameter matching information or the renewal classifies and dynamic parameter matching information;
Described information control unit is used for the QoS in its place Access Network is classified and parameter matching and upgrading, and sends to described second communication unit then.
6, system according to claim 5 is characterized in that, described information control unit can comprise: grade classification module, class parameter matching module, monitoring resource module and coupling adjusting module; Wherein,
Described grade classification module is used for all business in this Access Network putting into different categories and the storage service class information according to priority according to the relevant sorting technique of this Access Network;
Described class parameter matching module is used to the corresponding qos parameter of each grade traffic assignments in the described ready-portioned grade of service and stores the qos parameter information of each grade of service, and each grade of service is divided into the experimental process grade again, more various operating results are sent to described second communication unit 110;
Described monitoring resource module is used for the reserved resource in the described Access Network is monitored in real time, and after monitored results and default resource threshold compared comparative result is sent to described coupling adjusting module;
Described coupling adjusting module is used for according to described comparative result described definite qos parameter information being made real-time adjustment to be upgraded, and the qos parameter information after will upgrading then sends to described second communication unit.
7, a kind of dynamically method of mapping of heterogeneous network QoS that realizes is characterized in that, comprising:
QoS in the current Access Network is classified and dynamic parameter matching, and it is generated as the QoS control information sends to network equipment, so that network equipment is created the preliminary stable state mapping of QoS according to described QoS control information;
When dynamic QoS is adjusted demand, upgrade described QoS control information and send to described network equipment, so that described QoS mapping relations are adjusted in the QoS control information of described network equipment after according to described renewal, finish the dynamic mapping of QoS.
8, method according to claim 7 is characterized in that, realizes that by following steps the QoS in the described Access Network classifies and dynamic parameter matching:
With the sorting technique of all business in this Access Network, put into different categories and the storage service class information according to priority according to this Access Network correspondence;
For the corresponding qos parameter of each grade traffic assignments in the described ready-portioned grade of service and store the qos parameter information of each grade of service, and each grade of service is divided into the plurality of sub grade.
9, method according to claim 8 is characterized in that: the parameter of described distribution comprises time delay, packet loss and shake.
10, method according to claim 7 is characterized in that, makes described network equipment create preliminary stable state mapping by following steps:
According to described Access Network QoS control information described Access Network is registered;
Establishment is finished preliminary stable state mapping and is set up in order to store the database of described Access Network and core net QoS classified information and map information.
11, method according to claim 10 is characterized in that:
The QoS classified information of storing in the described database comprises the classification of the Access Network grade of service and QoS demand parameter, the classification of the core net grade of service and QoS demand parameter thereof at least; Described map information comprises many network mappings registration table and mapping relations table at least.
12, method according to claim 7 is characterized in that, realizes the renewal of QoS classification and parameter matching information in the following manner:
Monitor the reserved resource in the described Access Network in real time, and monitored results and the resource threshold of presetting are compared;
According to resource comparison the described qos parameter class information of having divided being made real-time adjustment upgrades; Wherein, described adjustment is upgraded and is comprised at least: if described reserved resource, is then carried out QoS classification grade degradation less than default tight threshold value; If described reserved resource is greater than default loose threshold value, and QoS classification grade degradation having taken place, had then carried out the upgrading of QoS classification grade.
13, method according to claim 12 is characterized in that, described qos parameter grade adjustment is upgraded and followed following rule:
When described QoS classification grade is demoted, adjust low priority traffice earlier, adjust high-priority service again; When adjusting, in the current classification grade of described business, carry out trickle adjustment earlier, stride level adjustment again; When striding the level adjustment, the current business grade is degraded to next grade at most;
When described QoS classification grade is upgraded, adjust high-priority service earlier, adjust low priority traffice again; When adjusting, stride level adjustment earlier, make and a grade business of demoting took place to stride get back to former grade; After described business is got back to former grade, carry out fine setting in the grade again.
14, method according to claim 7 is characterized in that, makes described network equipment adjust described QoS mapping relations by following steps:
From the QoS control information of described renewal, extract the QoS classification and the parameter matching information of renewal;
According to classified information and the map information that the QoS classification and the parameter matching information of this renewal are adjusted described QoS, finish dynamic mapping.
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