CN103595764A - Multi-service QoS safeguard system of super-large scale VSAT system and implementation method thereof - Google Patents
Multi-service QoS safeguard system of super-large scale VSAT system and implementation method thereof Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
- H04L41/5003—Managing SLA; Interaction between SLA and QoS
- H04L41/5019—Ensuring fulfilment of SLA
- H04L41/5022—Ensuring fulfilment of SLA by giving priorities, e.g. assigning classes of service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18528—Satellite systems for providing two-way communications service to a network of fixed stations, i.e. fixed satellite service or very small aperture terminal [VSAT] system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
Abstract
The invention relates to a multi-service QoS safeguard system of a super-large scale VSAT system and an implementation method thereof. The system identifies multiple service types through a QoS agent module, protocol and service associated attribute conversion between the VSAT system and an external data network is achieved through a gateway module, service transmission quality requirements of the VSAT system are met through a control plane and a user plane, the control plane carries out identification, signaling negotiation and predefinition on the multiple service types through a QoS agent to establish a QoS strategy for bearing services, the user plane guarantees final implementation of QoS by executing the strategy of the control plane, and therefore the system can reasonably allocate wireless resources, system resources are greatly saved, small station capacity of the system is remarkably improved, service transmission quality reduction caused by increasing of the scale of the system is reduced, and the super-large scale VSAT system is obtained.
Description
Technical field
Multi-service QoS safeguards system and its implementation of the present invention relates to a kind of ultra-large VSAT system, belong to technical field of satellite communication.
Background technology
At present, small-scale VSAT(Very Small Aperture Terminal) systems technology is very ripe, and the variation along with the broadband and business demand of network, make satellite communication system can carry multiple multimedia service, as video conference, VoIP, video calling, web browsing, FTP download etc., VSAT satellite communication system is just from traditional small-scale narrowband data communication application, to the extensive wide band multi-business satellite network development of a merges telecommunication, broadcast, computer.
Current satellite communication QoS(Quality of Service) support method be all for tradition VSAT system on a small scale, and type of service is simple, on the one hand, can not ensure the quality of assurance business transmission in the situation that of the access of extensive small station, and the processing time delay that a large number of services access request is produced is that satellite communication institute is flagrant; On the other hand, after type of service increases, can not well identify traffic data type and the setting to qos parameter that small station sends, thereby produce irrational resource allocation conditions; Finally, after not considering and merging with external network, the problem of shining upon between the different QoS parameter facing.At Chinese patent " a kind of satellite communication system feedback-type QoS safeguards system and support method ", application number: 201210098408, Chinese patent " a kind of satellite communication system end-to-end quality of service safeguards system and method ", application number: in 201210098416, be only for traditional VSAT system a kind of QoS safeguards system and support method, and it is for considering when VSAT system and external network merge the ultra-large wideband satellite communication system of formation, and the increase of terminal station quantity, type of service increases and situation about producing while merging with external network.
Summary of the invention
The object of the invention is to overcome the above-mentioned defect of prior art, a kind of multi-service QoS safeguards system of ultra-large VSAT system is provided, system is acted on behalf of multiple business type is identified by QoS, and from control plane and user level, ensure the service transmission quality requirement of VSAT system, reasonable distribution Radio Resource, thereby greatly saved system resource, significantly improved system small station capacity, realized ultra-large VSAT system.
Another object of the present invention is to provide a kind of implementation method of multi-service QoS safeguards system of ultra-large VSAT system.
Above-mentioned purpose of the present invention is mainly achieved by following technical solution:
A kind of multi-service QoS safeguards system of ultra-large VSAT system, be included in QoS proxy module, small station qos signaling transceiver module, main website qos signaling transceiver module and business transmission support module that control plane is realized, the small station RRM module realizing in service layer, while is in gateway module and the main website RRM module of control plane and service layer realization, wherein:
QoS proxy module: business datum user being transmitted at control plane is carried out type of service identification, and carries out qos parameter conversion according to recognition result, asks qos parameter to be sent to small station qos signaling receiver module the user who obtains;
Small station qos signaling transceiver module: to main website transmission business transmission demand signalling, described business transmission demand signalling comprises that the user who receives from QoS proxy module asks qos parameter; From main website reception business transmission request, accept signaling, described business transmission request is accepted signaling and is comprised the qos parameter consulting and the business transmission time slot that main website distributes, and qos parameter and business transmission time slot that described main website is distributed send to small station RRM module;
Main website qos signaling transceiver module: from small station reception business transmission demand signalling, the user who parses in described signaling asks qos parameter, and ask qos parameter to send to business transmission support module user; To small station transmission business transmission request, accept signaling, described business transmission request is accepted signaling and is comprised qos parameter and the business transmission time slot that main website distributes;
Business transmission support module: the user who receives main website qos signaling transceiver module transmission asks qos parameter, according to access control criterion, ask the signing qos parameter of user, the network QoS parameter of qos parameter and storage to compare user, get in three minimum value as qos parameter court verdict 1, and described qos parameter court verdict 1 is sent to gateway module; The qos parameter court verdict 2 receiving from gateway module is sent to main website RRM module by radio bearer link assignment demand signalling; Receive the radio bearer link assignment response signaling that main website RRM module sends, and the qos parameter in described signaling is sent to main website qos signaling transceiver module;
Gateway module: at control plane, after the qos parameter court verdict 1 that reception business transmission support module sends, carry out the qos parameter conversion between internal network and external network, and according to the qos parameter after conversion with external network resource is used and whether configuring condition judgement receives, demotes or refuse described qos parameter, and court verdict 2 is sent to business transmission support module; In service layer, receive the external data that external network sends, external data is classified and regulated, and the qos parameter of the data flow after regulating is mapped as to the qos parameter of VSAT system, and the data flow that comprises VSAT system QoS parameter is sent to main website RRM module; Receive the business datum with VSAT system QoS parameter that small station RRM module sends, by described VSAT system QoS Parameter Mapping, be external network qos parameter, and the traffic data with external network qos parameter is sent to external network;
Main website RRM module: at control plane, the radio bearer link assignment demand signalling that reception business transmission support module sends, extract qos parameter court verdict 2 and service feature parameter in described signaling, according to dispatching priority and the needed Radio Resource of transport service of qos parameter court verdict 2 and service feature calculation of parameter user requested service, judge whether current wireless resource meets the demands, and judged result 3 is transmitted to support module by radio bearer link assignment response signaling informing business; In service layer, receive the data flow with VSAT system QoS parameter that gateway module sends, according to described qos parameter, carry out distributing slot resources, the data that obtain time interval resource form forward data flow, send to user;
Small station RRM module: receive business datum from user, and the qos parameter consulting according to the main website receiving from small station qos signaling transceiver module is to the adjusting of classifying of described business datum, and the business datum after regulating is sent to gateway module.
In the multi-service QoS of above-mentioned ultra-large VSAT system safeguards system, QoS proxy module comprises recognition processing module, qos parameter mapping block and type of service feature database, wherein:
Recognition processing module: receive the business datum that user sends, search type of service feature database according to the feature of business datum, described business datum is carried out to type of service identification, and recognition result is sent to qos parameter mapping block;
Qos parameter mapping block: receive the type of service recognition result that recognition processing module sends, and recognition result is converted to corresponding qos parameter according to the mapping relations of setting, and qos parameter is sent to small station qos signaling receiver module;
Type of service feature database: the feature of storage service type.
In the multi-service QoS of above-mentioned ultra-large VSAT system safeguards system, business transmission support module comprises signing functional unit, admission control function unit, qos parameter negotiation functionality unit and the bearer service administrative unit controlled; Wherein
Qos parameter negotiation functionality unit: the user who receives main website qos signaling transceiver module transmission asks qos parameter, first from contracting, control the signing qos parameter of inquiring user functional unit, then ask qos parameter to send to admission control function unit the signing qos parameter of described user and described user, and from admission control function unit, read qos parameter court verdict 1 and send to bearer service administrative unit;
Admission control function unit: ask after qos parameter obtaining the signing qos parameter of user and user, carry out access judgement, judgement standard comprises: 1. whether can activate new service transmission channel; 2. qos parameter whether effectively 3. user request whether effectively 4. qos parameter whether within signing scope; 5. calculate the maximum bandwidth satisfying the demands in usable radio resources, and judge whether when towards connection, to reserve described maximum bandwidth resource; If meet above-mentioned five judgement standards simultaneously, ask the network QoS parameter of qos parameter and setting to compare the signing qos parameter of user, user, get minimum value in three and consult definite qos parameter as business transmission support module, and send to qos parameter negotiation functionality unit;
Bearer service administrative unit: the qos parameter court verdict 1 receiving from qos parameter negotiation functionality unit is sent to gateway module; Receive gateway module and consult qos parameter court verdict 2 afterwards, and qos parameter court verdict 2 is sent to main website RRM module by radio bearer link assignment demand signalling; Receive the radio bearer link assignment response signaling that main website RRM module sends, and the qos parameter in described signaling is sent to main website qos signaling transceiver module;
The signing functional unit of controlling: for the signing qos parameter of inquiring user.
In the multi-service QoS of above-mentioned ultra-large VSAT system safeguards system, gateway module comprises translation function unit, admission control function unit, qos parameter consultative management functional unit and bearer service management function at control plane; Wherein:
QoS consultative management functional unit: receive the qos parameter court verdict 1 that bearer service management function module is sent, first send to translation function unit to carry out the qos parameter conversion between internal network and external network, and the qos parameter after conversion is sent to admission control function unit, and from admission control function unit, read qos parameter court verdict 2 and send to bearer service administrative unit;
Admission control function unit: receive the qos parameter after the conversion that QoS consultative management functional unit sends, and according to the qos parameter after described conversion with external network resource is used and whether configuring condition judgement receives, demotes or refuse described qos parameter;
Translation function unit: realize the qos parameter conversion between internal network and external network according to the mapping relations of setting;
Bearer service management function: by the qos parameter court verdict 2 receiving from qos parameter consultative management functional unit, send to business transmission support module; The qos parameter court verdict 1 receiving from business transmission support module is sent to qos parameter consultative management functional unit.
A multi-service QoS support method for VSAT system, carries out QoS guarantee at control plane and service layer respectively, specifically comprises the steps:
Wherein the QoS of control plane ensures that by main website RRM module, business transmission support module and gateway module, carrying out QoS consults ，Bing You main website qos signaling transceiver module and carry out signalling and realize, and detailed process is as follows:
The user that step (1), main website qos signaling transceiver module receive small station end transmission asks after qos parameter, and described parameter is sent to business transmission support module;
The user that step (2), business transmission support module receive main website qos signaling transceiver module transmission asks qos parameter, according to access control criterion, ask the signing qos parameter of user, the network QoS parameter of qos parameter and storage to compare user, get in three minimum value as qos parameter court verdict 1, and described qos parameter court verdict 1 is sent to gateway module;
After the qos parameter court verdict 1 that step (3), gateway module reception business transmission support module send, carry out the qos parameter conversion between internal network and external network, and whether receive, demote or refuse described qos parameter according to the qos parameter after conversion and the judgement of Internet usage and configuring condition, and court verdict 2 is sent to business transmission support module;
Step (4), business transmission support module are sent to main website RRM module by the qos parameter court verdict 2 receiving from gateway module by radio bearer link assignment demand signalling;
Step (5), the radio bearer link assignment demand signalling that main website RRM module reception business transmission support module sends, extract qos parameter court verdict 2 and service feature parameter in described signaling, according to dispatching priority and the needed Radio Resource of transport service of qos parameter court verdict 2 and service feature calculation of parameter user requested service, judge whether current wireless resource meets the demands, if meet the demands, by radio bearer link assignment response informing business transmission support module, accept the request of radio bearer link assignment, enter step (6), if do not meet the demands radio bearer link assignment failure, and failure cause is put into radio bearer link assignment response signaling informing business transmission support module, enter step (8),
Step (6), business transmission support module receive the radio bearer link assignment response signaling that main website RRM module sends, and the qos parameter in described signaling are sent to main website qos parameter transceiver module;
Step (7), main website qos parameter transceiver module consult the qos parameter in described signaling qos parameter as main website sends to small station qos signaling transceiver module;
Step (8), business transmission support module reduce application qos parameter according to failure cause, and initiate radio bearer link assignment request process according to new qos parameter, return to step (2);
The QoS guarantee of service layer realizes by main website RRM module, gateway module and small station RRM module, and detailed process is as follows:
Yi, main website forward link part, specific implementation step is as follows:
Step (9), gateway module receive the external data that external network sends, external data is classified and regulated, and the qos parameter of the data flow after regulating is mapped as to VSAT system QoS parameter, and the data flow with VSAT system QoS parameter is sent to main website RRM module;
Step (10), main website RRM module receive the data flow with VSAT system QoS parameter that gateway module sends, and according to described qos parameter, carry out distributing slot resources, and the data that obtain time interval resource form forward data flow, send to user;
Two, small station return link part, specific implementation step is as follows:
Step (11), small station RRM module receive business datum from user, and the qos parameter consulting according to the main website receiving from small station qos signaling transceiver module is to the adjusting of classifying of described business datum, and the business datum after regulating is sent to gateway module.
Step (12), gateway module receive the business datum with VSAT system QoS parameter that small station RRM module sends, by described VSAT system QoS Parameter Mapping, be external network qos parameter, and the traffic data with external network qos parameter is sent to external network.
In the multi-service QoS of above-mentioned ultra-large VSAT system support method, before QoS negotiations process, first the business datum that QoS proxy module transmits user is carried out type of service identification, and according to recognition result, carry out qos parameter and be converted to user and ask qos parameter, finally user is asked qos parameter to be sent to small station qos signaling receiver module; Next qos signaling transceiver module in small station is to main website transmission business transmission demand signalling, and described business transmission demand signalling comprises that the user who receives from QoS proxy module asks qos parameter.
In the multi-service QoS of above-mentioned ultra-large VSAT system support method, QoS proxy module comprises recognition processing module, qos parameter mapping block and type of service feature database, wherein:
Recognition processing module: receive the business datum that user sends, search type of service feature database according to the feature of business datum, described business datum is carried out to type of service identification, and recognition result is sent to qos parameter mapping block;
Qos parameter mapping block: receive the type of service recognition result that recognition processing module sends, and recognition result is converted to corresponding qos parameter according to the mapping relations of setting, and qos parameter is sent to small station qos signaling receiver module;
Type of service feature database: the feature of storage service type.
In the multi-service QoS of above-mentioned ultra-large VSAT system support method, business transmission support module comprises signing functional unit, admission control function unit, qos parameter negotiation functionality unit and the bearer service administrative unit controlled; Wherein
Qos parameter negotiation functionality unit: the user who receives main website qos signaling transceiver module transmission asks qos parameter, first from contracting, control the signing qos parameter of inquiring user functional unit, then ask qos parameter to send to admission control function unit the signing qos parameter of described user and described user, and from admission control function unit, read qos parameter court verdict 1 and send to bearer service administrative unit;
Admission control function unit: ask after qos parameter obtaining the signing qos parameter of user and user, carry out access judgement, judgement standard comprises: 1. whether can activate new service transmission channel; 2. qos parameter whether effectively 3. user request whether effectively 4. qos parameter whether within signing scope; 5. calculate the maximum bandwidth satisfying the demands in usable radio resources, and judge whether when towards connection, to reserve described maximum bandwidth resource; If meet above-mentioned five judgement standards simultaneously, ask the network QoS parameter of qos parameter and setting to compare the signing qos parameter of user, user, get minimum value in three and consult definite qos parameter as business transmission support module, and send to qos parameter negotiation functionality unit;
Bearer service administrative unit: the qos parameter court verdict 1 receiving from qos parameter negotiation functionality unit is sent to gateway module; Receive gateway module and consult qos parameter court verdict 2 afterwards, and qos parameter court verdict 2 is sent to main website RRM module by radio bearer link assignment demand signalling; Receive the radio bearer link assignment response signaling that main website RRM module sends, and the qos parameter in described signaling is sent to main website qos signaling transceiver module;
The signing functional unit of controlling: for the signing qos parameter of inquiring user.
In the multi-service QoS of above-mentioned ultra-large VSAT system support method, gateway module comprises translation function unit, admission control function unit, qos parameter consultative management functional unit and bearer service management function at control plane; Wherein:
QoS consultative management functional unit: receive the qos parameter court verdict 1 that bearer service management function module is sent, first send to translation function unit to carry out the qos parameter conversion between internal network and external network, and the qos parameter after conversion is sent to admission control function unit, and from admission control function unit, read qos parameter court verdict 2 and send to bearer service administrative unit;
Admission control function unit: receive the qos parameter after the conversion that QoS consultative management functional unit sends, and according to the qos parameter after described conversion with external network resource is used and whether configuring condition judgement receives, demotes or refuse described qos parameter;
Translation function unit: realize the qos parameter conversion between internal network and external network according to the mapping relations of setting;
Bearer service management function: by the qos parameter court verdict 2 receiving from qos parameter consultative management functional unit, send to business transmission support module; The qos parameter court verdict 1 receiving from business transmission support module is sent to qos parameter consultative management functional unit.
The present invention compared with prior art has following beneficial effect:
(1), the present invention proposes a kind of multi-service QoS safeguards system of ultra-large VSAT system of innovative design, this system comprises QoS proxy module, small station qos signaling transceiver module, main website qos signaling transceiver module, business transmission support module, small station RRM module, gateway module, main website RRM module, by the collaborative work of each module, flexibility and diversity that in ultra-large VSAT system, QoS ensures have been realized, and the qos parameter reasonable distribution Radio Resource through consultation, greatly saved system resource, thereby can improve system small station capacity,
(2), the present invention ensures the service transmission quality requirement of VSAT system from control plane and user level, chain of command is consulted by signaling and predefine is set up the qos policy of bearer service; User's face ensures the final enforcement of QoS by carrying out chain of command strategy, by qos parameter being consulted to signalling, separate processing with business data transmission, can carry out centralized management to the control signal receiving, for the qos parameter in access request and current Radio Resource situation, carry out QoS negotiation, reasonable distribution Radio Resource, greatly saved system resource, thereby can improve system small station capacity, the service transmission quality that minimizing causes because system scale increases declines, and realizes ultra-large VSAT system;
(3), first passage gateway module of the present invention is realized the conversion of qos parameter between VSAT network and external network, solve the QoS of survice Parameter Mapping problem at internal network and outside networking, thereby can effectively carry out business data transmission while realizing VSAT internal system network and external network interconnection;
(4), in the present invention, business transmission support module asks qos parameter, the signing qos parameter of user and network QoS parameter to be held consultation according to user, get in three minimum value as qos parameter court verdict, for in the past only with service request qos parameter as qos parameter negotiation result, considered the CAMEL-Subscription-Information in different small stations, for different small stations provides different QoS services, improved flexibility and the diversity of the QoS guarantee of extensive VSAT system.
(5), the present invention is acted on behalf of multiple business type is identified by QoS, can realize the identification to multiple multimedia service type, as video conference, VoIP, video calling, web browsing, FTP download etc., having overcome current satellite communication QoS support method only can be for tradition small-scale VSAT system, and the simple defect of type of service, make VSAT satellite communication system from traditional small-scale narrowband data communication application, to the extensive wide band multi-business satellite network development of a merges telecommunication, broadcast, computer.
Accompanying drawing explanation
Fig. 1 is the multi-service QoS safeguards system structural representation of the ultra-large VSAT system of the present invention;
Fig. 2 is QoS proxy module structural representation in multi-service QoS safeguards system of the present invention;
Fig. 3 is business transmission support module structural representation in multi-service QoS safeguards system of the present invention;
Fig. 4 is gateway module structural representation in multi-service QoS safeguards system of the present invention;
Fig. 5 is that in multi-service QoS safeguards system implementation method of the present invention, qos parameter is consulted interaction diagrams.
Concrete execution mode
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Be illustrated in figure 1 the multi-service QoS safeguards system structural representation of the ultra-large VSAT system of the present invention, this system is included in QoS proxy module, small station qos signaling transceiver module, main website qos signaling transceiver module and the business transmission support module that control plane is realized as seen from the figure, the small station RRM module realizing in service layer, the while is in gateway module and the main website RRM module of control plane and service layer realization.
Be illustrated in figure 2 QoS proxy module structural representation in multi-service QoS safeguards system of the present invention, the business datum that QoS proxy module transmits user at control plane is carried out type of service identification, and carry out qos parameter conversion according to recognition result, ask qos parameter to be sent to small station qos signaling receiver module the user who obtains.As shown in Figure 2, QoS proxy module specifically comprises recognition processing module, qos parameter mapping block and type of service feature database, wherein recognition processing module receives the business datum that user sends, according to the feature of business datum, search type of service feature database, business datum is carried out to type of service identification, and recognition result is sent to qos parameter mapping block.Qos parameter mapping block receives the type of service recognition result that recognition processing module sends, and recognition result is converted to corresponding qos parameter according to the mapping relations of setting, and qos parameter is sent to small station qos signaling receiver module.Type of service feature database is for storing the feature of various types of traffic, wherein the feature of business datum comprises ID parameter, business transmit port and receiving port, IP address argument, business transmission rate parameter, control signal bandwidth parameter and operation code mode parameter etc.
Qos signaling transceiver module in small station is to main website transmission business transmission demand signalling, and business transmission demand signalling comprises that the user who receives from QoS proxy module asks qos parameter.From main website reception business transmission request, accept signaling simultaneously, business transmission request is accepted signaling and is comprised the qos parameter consulting and the business transmission time slot that the qos parameter consulting that main website distributes and business transmission time slot ，Bing Jiang main website distribute and send to small station RRM module.
Main website qos signaling transceiver module is from small station reception business transmission demand signalling, and the user who parses in signaling asks qos parameter, and asks qos parameter to send to business transmission support module user.To small station transmission business transmission request, accept signaling, business transmission request is accepted signaling and is comprised the qos parameter consulting and the business transmission time slot that main website distributes simultaneously.
Be illustrated in figure 3 business transmission support module structural representation in multi-service QoS safeguards system of the present invention, business transmission support module comprises signing functional unit, admission control function unit, qos parameter negotiation functionality unit and the bearer service administrative unit controlled.
The user that wherein qos parameter negotiation functionality unit reception main website signaling receiving and transmission module sends asks qos parameter, first from contracting, control the signing qos parameter of inquiring user functional unit, then ask qos parameter to send to admission control function unit the signing qos parameter of user and user, and from admission control function unit, read qos parameter court verdict 1 and send to bearer service administrative unit.
Ask after qos parameter obtaining the signing qos parameter of user and user admission control function unit, carries out access judgement, and judgement standard comprises: 1. whether can activate new service transmission channel; 2. user ask qos parameter whether effectively 3. user request whether effectively 4. user ask qos parameter whether within signing scope; 5. calculate the maximum bandwidth satisfying the demands in usable radio resources, and judge whether when towards connection, to reserve above-mentioned maximum bandwidth resource; If meet above-mentioned 5 judgement standards simultaneously, ask the network QoS parameter of qos parameter and setting to compare the signing qos parameter of user, user, get minimum value in three and consult definite qos parameter (being qos parameter court verdict 1) as business transmission support module, and send to qos parameter negotiation functionality unit.
Bearer service administrative unit sends to gateway module by the qos parameter court verdict 1 receiving from qos parameter negotiation functionality unit.Receive gateway module simultaneously and consult qos parameter court verdict 2 afterwards, and qos parameter court verdict 2 is sent to main website RRM module by radio bearer link assignment demand signalling.In addition receive the radio bearer link assignment response signaling that main website RRM module sends, and the qos parameter in this signaling is sent to main website qos signaling transceiver module.
The signing functional unit of controlling is for the signing qos parameter of inquiring user.
Be illustrated in figure 4 gateway module structural representation in multi-service QoS safeguards system of the present invention, gateway module is realized at control plane and service layer simultaneously, at control plane, after the qos parameter court verdict 1 that gateway module reception business transmission support module sends, carry out the qos parameter conversion between internal network and external network, and according to the qos parameter after conversion and external network resource is used and whether configuring condition judgement receives, demotes (QoS lowering the requirement ensures parameter) or refusal qos parameter, and court verdict 2 is sent to business transmission support module.Fig. 4 has provided the structural design of gateway module when control plane is realized, gateway module specifically comprises translation function unit, admission control function unit, qos parameter consultative management functional unit and bearer service management function at control plane, and the concrete function of each unit module is as follows:
QoS consultative management functional unit receives the qos parameter court verdict 1 that bearer service management function module is sent, first send to translation function unit to carry out the qos parameter conversion between internal network and external network, and the qos parameter after conversion is sent to admission control function unit, and from admission control function unit, read qos parameter court verdict 2 and send to bearer service administrative unit.
Admission control function unit receives the qos parameter after the conversion that QoS consultative management functional unit sends, and according to the qos parameter after conversion with external network resource is used and whether configuring condition judgement receives, demotes or refuse described qos parameter.
The qos parameter conversion between internal network and external network is realized according to the mapping relations of setting in translation function unit.
Bearer service management function, by the qos parameter court verdict 2 receiving from qos parameter consultative management functional unit, sends to business transmission support module.The qos parameter court verdict 1 receiving from business transmission support module is sent to qos parameter consultative management functional unit simultaneously.
In service layer, gateway module receives the external data that external network sends, external data is classified and regulated, first according to packet header, filter (as udp port number) judgement type of service, and be classified in corresponding packet data transmission stream, classified rear according to the qos parameter on control plane, as Maximum Bit Rate with guarantee bit rate, to each packet data transmission stream carry out flow smooth, delete or data (regulating mainly for non-real-time service stream) that sign does not meet the demands.Gateway module is mapped as the qos parameter of VSAT system by the qos parameter of the data flow after regulating, and the data flow that comprises VSAT system QoS parameter is sent to main website RRM module.Gateway module receives the business datum with VSAT system QoS parameter that small station RRM module sends simultaneously, by VSAT system QoS Parameter Mapping, be external network qos parameter, and the traffic data with external network qos parameter is sent to external network.
Main website RRM module realizes at control plane and service layer simultaneously, at control plane, the radio bearer link assignment demand signalling that main website RRM module reception business transmission support module sends, extract qos parameter court verdict 2 and traffic performance parameter in signaling, according to dispatching priority and the needed Radio Resource of transport service of qos parameter court verdict 2 and traffic performance calculation of parameter user requested service, judge whether current wireless resource meets the demands, and judged result 3 is transmitted to support module by radio bearer link assignment response signaling informing business.
In service layer, main website RRM module receives the data flow with VSAT system QoS parameter that gateway module sends, and according to this qos parameter, carries out distributing slot resources, and the data that obtain time interval resource form forward data flow, send to user.
Small station RRM module receives business datum from user, and the qos parameter consulting according to the main website receiving from small station qos signaling transceiver module is to the adjusting of classifying of this business datum that will transmit, first according to packet header, filter (as udp port number) judgement type of service, and be classified in corresponding packet data transmission stream, classified rear according to the qos parameter on control plane, as Maximum Bit Rate and assurance bit rate, each packet data transmission stream is carried out to flow smooth, delete or identify the data (regulating mainly for non-real-time service stream) that do not meet the demands.Small station RRM module is finally sent to gateway module by the business datum after regulating.
The multi-service QoS safeguards system of the ultra-large VSAT system of the present invention is carried out QoS guarantee at control plane and service layer respectively, and concrete methods of realizing comprises the steps:
The QoS support process of control plane:
One, first at small station end, produce the signaling with qos parameter, detailed process is as follows:
The business datum that step (1), QoS proxy module transmit user is carried out type of service identification, and according to recognition result, carries out qos parameter and be converted to user and ask qos parameter, finally user is asked qos parameter to be sent to small station qos signaling receiver module.
Step (2), small station qos signaling transceiver module are to main website transmission business transmission demand signalling, and business transmission demand signalling comprises that the user who receives from QoS proxy module asks qos parameter.
Two, then main website carries out QoS negotiation at control plane by RRM module, business transmission support module and gateway module, be illustrated in figure 5 qos parameter in multi-service QoS safeguards system implementation method of the present invention and consult interaction diagrams, QoS negotiations process is as follows:
The user that step (3), main website qos signaling transceiver module receive small station end transmission asks after qos parameter, asks qos parameter to be sent to business transmission support module user.
The user that step (4), business transmission support module receive main website qos signaling transceiver module transmission asks qos parameter, according to access control criterion, ask the signing qos parameter of user, the network QoS parameter of qos parameter and storage to compare user, get in three minimum value as qos parameter court verdict 1, and this qos parameter court verdict 1 is sent to gateway module.
After the qos parameter court verdict 1 that step (5), gateway module reception business transmission support module send, carry out the conversion of inside and outside network QoS parameter, and whether receive, demote or refuse above-mentioned qos parameter according to the qos parameter after conversion and the judgement of Internet usage and configuring condition, and court verdict 2 is sent to business transmission support module.
Step (6), business transmission support module are sent to main website RRM module by the qos parameter court verdict 2 receiving from gateway module by radio bearer link assignment demand signalling.
Step (7), the radio bearer link assignment demand signalling that main website RRM module reception business transmission support module sends, extract qos parameter court verdict 2 and service feature parameter in this signaling, according to dispatching priority and the needed Radio Resource of transport service of qos parameter court verdict 2 and service feature calculation of parameter user requested service, judge whether current wireless resource meets the demands, if meet the demands, by radio bearer link assignment response informing business transmission support module, accept the request of radio bearer link assignment, enter step (8), if do not meet the demands radio bearer link assignment failure, and failure cause is put into radio bearer link assignment response signaling informing business transmission support module, enter step (10),
Step (8), business transmission support module receive the radio bearer link assignment response signaling that main website RRM module sends, and the qos parameter in this signaling are sent to main website qos parameter signaling receiving and transmission module.
Step (9), main website qos parameter signaling receiving and transmission module consult the qos parameter in signaling qos parameter as main website sends to small station qos signaling transceiver module.
Step (10), business transmission support module reduce application qos parameter according to failure cause, and initiate radio bearer link assignment request process according to new qos parameter, return to step (4);
The QoS support process of service layer is as follows:
Yi, main website forward link part, performing step is as follows:
Step (11), gateway module receive the external data that external network sends, and first classify to the data that will transmit in small station, according to packet header, filter (as udp port number) judgement type of service, are classified in corresponding packet data transmission stream.Classified rear according to the qos parameter on control plane, as Maximum Bit Rate with guarantee bit rate, to each packet data transmission stream carry out flow smooth, delete or data (regulating mainly for non-real-time service stream) that sign does not meet the demands.And the qos parameter of the data flow after regulating is mapped as to the qos parameter of VSAT system, and the data flow with VSAT system QoS parameter is sent to main website RRM module.
Step (12), main website RRM module receive the data flow with VSAT system QoS parameter that gateway module sends, and according to this qos parameter, carry out distributing slot resources, and the data that obtain time interval resource form forward data flow, send to user.
Two, small station return link part, performing step is as follows:
Step (13), small station RRM module is by the business datum receiving from user, the qos parameter that the main website receiving according to small station qos signaling transceiver module consults is to the adjusting of classifying of the data that will transmit, according to packet header, filter (as udp port number) judgement type of service, be classified in corresponding packet data transmission stream, classified post regulator according to the qos parameter on control plane, as Maximum Bit Rate and assurance bit rate, each packet data transmission stream is carried out to flow smooth, delete or identify the data (regulating mainly for non-real-time service stream) that do not meet the demands.Business datum after regulating is sent to gateway module.
Step (14), gateway module receive the business datum with VSAT system QoS parameter that small station RRM module sends, by this VSAT system QoS Parameter Mapping, be external network qos parameter, and the traffic data with external network qos parameter is sent to external network.
The above; only be the embodiment of the best of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.
Claims (9)
1. the multi-service QoS safeguards system of a ultra-large VSAT system, it is characterized in that: be included in QoS proxy module, small station qos signaling transceiver module, main website qos signaling transceiver module and business transmission support module that control plane is realized, the small station RRM module realizing in service layer, while is in gateway module and the main website RRM module of control plane and service layer realization, wherein:
QoS proxy module: business datum user being transmitted at control plane is carried out type of service identification, and carries out qos parameter conversion according to recognition result, asks qos parameter to be sent to small station qos signaling receiver module the user who obtains;
Small station qos signaling transceiver module: to main website transmission business transmission demand signalling, described business transmission demand signalling comprises that the user who receives from QoS proxy module asks qos parameter; From main website reception business transmission request, accept signaling, described business transmission request is accepted signaling and is comprised the qos parameter consulting and the business transmission time slot that main website distributes, and qos parameter and business transmission time slot that described main website is distributed send to small station RRM module;
Main website qos signaling transceiver module: from small station reception business transmission demand signalling, the user who parses in described signaling asks qos parameter, and ask qos parameter to send to business transmission support module user; To small station transmission business transmission request, accept signaling, described business transmission request is accepted signaling and is comprised qos parameter and the business transmission time slot that main website distributes;
Business transmission support module: the user who receives main website qos signaling transceiver module transmission asks qos parameter, according to access control criterion, ask the signing qos parameter of user, the network QoS parameter of qos parameter and storage to compare user, get in three minimum value as qos parameter court verdict 1, and described qos parameter court verdict 1 is sent to gateway module; The qos parameter court verdict 2 receiving from gateway module is sent to main website RRM module by radio bearer link assignment demand signalling; Receive the radio bearer link assignment response signaling that main website RRM module sends, and the qos parameter in described signaling is sent to main website qos signaling transceiver module;
Gateway module: at control plane, after the qos parameter court verdict 1 that reception business transmission support module sends, carry out the qos parameter conversion between internal network and external network, and according to the qos parameter after conversion with external network resource is used and whether configuring condition judgement receives, demotes or refuse described qos parameter, and court verdict 2 is sent to business transmission support module; In service layer, receive the external data that external network sends, external data is classified and regulated, and the qos parameter of the data flow after regulating is mapped as to the qos parameter of VSAT system, and the data flow that comprises VSAT system QoS parameter is sent to main website RRM module; Receive the business datum with VSAT system QoS parameter that small station RRM module sends, by described VSAT system QoS Parameter Mapping, be external network qos parameter, and the traffic data with external network qos parameter is sent to external network;
Main website RRM module: at control plane, the radio bearer link assignment demand signalling that reception business transmission support module sends, extract qos parameter court verdict 2 and service feature parameter in described signaling, according to dispatching priority and the needed Radio Resource of transport service of qos parameter court verdict 2 and service feature calculation of parameter user requested service, judge whether current wireless resource meets the demands, and judged result 3 is transmitted to support module by radio bearer link assignment response signaling informing business; In service layer, receive the data flow with VSAT system QoS parameter that gateway module sends, according to described qos parameter, carry out distributing slot resources, the data that obtain time interval resource form forward data flow, send to user;
Small station RRM module: receive business datum from user, and the qos parameter consulting according to the main website receiving from small station qos signaling transceiver module is to the adjusting of classifying of described business datum, and the business datum after regulating is sent to gateway module.
2. the multi-service QoS safeguards system of a kind of ultra-large VSAT system according to claim 1, is characterized in that: described QoS proxy module comprises recognition processing module, qos parameter mapping block and type of service feature database, wherein:
Recognition processing module: receive the business datum that user sends, search type of service feature database according to the feature of business datum, described business datum is carried out to type of service identification, and recognition result is sent to qos parameter mapping block;
Qos parameter mapping block: receive the type of service recognition result that recognition processing module sends, and recognition result is converted to corresponding qos parameter according to the mapping relations of setting, and qos parameter is sent to small station qos signaling receiver module;
Type of service feature database: the feature of storage service type.
3. the multi-service QoS safeguards system of a kind of ultra-large VSAT system according to claim 1, is characterized in that: described business transmission support module comprises signing functional unit, admission control function unit, qos parameter negotiation functionality unit and the bearer service administrative unit controlled; Wherein
Qos parameter negotiation functionality unit: the user who receives main website qos signaling transceiver module transmission asks qos parameter, first from contracting, control the signing qos parameter of inquiring user functional unit, then ask qos parameter to send to admission control function unit the signing qos parameter of described user and described user, and from admission control function unit, read qos parameter court verdict 1 and send to bearer service administrative unit;
Admission control function unit: ask after qos parameter obtaining the signing qos parameter of user and user, carry out access judgement, judgement standard comprises: 1. whether can activate new service transmission channel; 2. qos parameter whether effectively 3. user request whether effectively 4. qos parameter whether within signing scope; 5. calculate the maximum bandwidth satisfying the demands in usable radio resources, and judge whether when towards connection, to reserve described maximum bandwidth resource; If meet above-mentioned five judgement standards simultaneously, ask the network QoS parameter of qos parameter and setting to compare the signing qos parameter of user, user, get minimum value in three and consult definite qos parameter as business transmission support module, and send to qos parameter negotiation functionality unit;
Bearer service administrative unit: the qos parameter court verdict 1 receiving from qos parameter negotiation functionality unit is sent to gateway module; Receive gateway module and consult qos parameter court verdict 2 afterwards, and qos parameter court verdict 2 is sent to main website RRM module by radio bearer link assignment demand signalling; Receive the radio bearer link assignment response signaling that main website RRM module sends, and the qos parameter in described signaling is sent to main website qos signaling transceiver module;
The signing functional unit of controlling: for the signing qos parameter of inquiring user.
4. a kind of multi-service QoS safeguards system of ultra-large VSAT system according to claim 1, is characterized in that: described gateway module comprises translation function unit, admission control function unit, qos parameter consultative management functional unit and bearer service management function at control plane; Wherein:
QoS consultative management functional unit: receive the qos parameter court verdict 1 that bearer service management function module is sent, first send to translation function unit to carry out the qos parameter conversion between internal network and external network, and the qos parameter after conversion is sent to admission control function unit, and from admission control function unit, read qos parameter court verdict 2 and send to bearer service administrative unit;
Admission control function unit: receive the qos parameter after the conversion that QoS consultative management functional unit sends, and according to the qos parameter after described conversion with external network resource is used and whether configuring condition judgement receives, demotes or refuse described qos parameter;
Translation function unit: realize the qos parameter conversion between internal network and external network according to the mapping relations of setting;
Bearer service management function: by the qos parameter court verdict 2 receiving from qos parameter consultative management functional unit, send to business transmission support module; The qos parameter court verdict 1 receiving from business transmission support module is sent to qos parameter consultative management functional unit.
5. a multi-service QoS support method for ultra-large VSAT system, is characterized in that: at control plane and service layer, carry out QoS guarantee respectively, specifically comprise the steps:
Wherein the QoS of control plane ensures that by main website RRM module, business transmission support module and gateway module, carrying out QoS consults ，Bing You main website qos signaling transceiver module and carry out signalling and realize, and detailed process is as follows:
The user that step (1), main website qos signaling transceiver module receive small station end transmission asks after qos parameter, and described parameter is sent to business transmission support module;
The user that step (2), business transmission support module receive main website qos signaling transceiver module transmission asks qos parameter, according to access control criterion, ask the signing qos parameter of user, the network QoS parameter of qos parameter and storage to compare user, get in three minimum value as qos parameter court verdict 1, and described qos parameter court verdict 1 is sent to gateway module;
After the qos parameter court verdict 1 that step (3), gateway module reception business transmission support module send, carry out the qos parameter conversion between internal network and external network, and whether receive, demote or refuse described qos parameter according to the qos parameter after conversion and the judgement of Internet usage and configuring condition, and court verdict 2 is sent to business transmission support module;
Step (4), business transmission support module are sent to main website RRM module by the qos parameter court verdict 2 receiving from gateway module by radio bearer link assignment demand signalling;
Step (5), the radio bearer link assignment demand signalling that main website RRM module reception business transmission support module sends, extract qos parameter court verdict 2 and service feature parameter in described signaling, according to dispatching priority and the needed Radio Resource of transport service of qos parameter court verdict 2 and service feature calculation of parameter user requested service, judge whether current wireless resource meets the demands, if meet the demands, by radio bearer link assignment response informing business transmission support module, accept the request of radio bearer link assignment, enter step (6), if do not meet the demands radio bearer link assignment failure, and failure cause is put into radio bearer link assignment response signaling informing business transmission support module, enter step (8),
Step (6), business transmission support module receive the radio bearer link assignment response signaling that main website RRM module sends, and the qos parameter in described signaling are sent to main website qos parameter transceiver module;
Step (7), main website qos parameter transceiver module consult the qos parameter in described signaling qos parameter as main website sends to small station qos signaling transceiver module;
Step (8), business transmission support module reduce application qos parameter according to failure cause, and initiate radio bearer link assignment request process according to new qos parameter, return to step (2);
The QoS guarantee of service layer realizes by main website RRM module, gateway module and small station RRM module, and detailed process is as follows:
Yi, main website forward link part, specific implementation step is as follows:
Step (9), gateway module receive the external data that external network sends, external data is classified and regulated, and the qos parameter of the data flow after regulating is mapped as to VSAT system QoS parameter, and the data flow with VSAT system QoS parameter is sent to main website RRM module;
Step (10), main website RRM module receive the data flow with VSAT system QoS parameter that gateway module sends, and according to described qos parameter, carry out distributing slot resources, and the data that obtain time interval resource form forward data flow, send to user;
Two, small station return link part, specific implementation step is as follows:
Step (11), small station RRM module receive business datum from user, and the qos parameter consulting according to the main website receiving from small station qos signaling transceiver module is to the adjusting of classifying of described business datum, and the business datum after regulating is sent to gateway module.
Step (12), gateway module receive the business datum with VSAT system QoS parameter that small station RRM module sends, by described VSAT system QoS Parameter Mapping, be external network qos parameter, and the traffic data with external network qos parameter is sent to external network.
6. the multi-service QoS support method of a kind of ultra-large VSAT system according to claim 5, it is characterized in that: before described QoS negotiations process, first the business datum that QoS proxy module transmits user is carried out type of service identification, and according to recognition result, carry out qos parameter and be converted to user and ask qos parameter, finally user is asked qos parameter to be sent to small station qos signaling receiver module; Next qos signaling transceiver module in small station is to main website transmission business transmission demand signalling, and described business transmission demand signalling comprises that the user who receives from QoS proxy module asks qos parameter.
7. the multi-service QoS support method of a kind of ultra-large VSAT system according to claim 5, is characterized in that: described QoS proxy module comprises recognition processing module, qos parameter mapping block and type of service feature database, wherein:
Recognition processing module: receive the business datum that user sends, search type of service feature database according to the feature of business datum, described business datum is carried out to type of service identification, and recognition result is sent to qos parameter mapping block;
Qos parameter mapping block: receive the type of service recognition result that recognition processing module sends, and recognition result is converted to corresponding qos parameter according to the mapping relations of setting, and qos parameter is sent to small station qos signaling receiver module;
Type of service feature database: the feature of storage service type.
8. the multi-service QoS support method of a kind of ultra-large VSAT system according to claim 5, is characterized in that: described business transmission support module comprises signing functional unit, admission control function unit, qos parameter negotiation functionality unit and the bearer service administrative unit controlled; Wherein
Qos parameter negotiation functionality unit: the user who receives main website qos signaling transceiver module transmission asks qos parameter, first from contracting, control the signing qos parameter of inquiring user functional unit, then ask qos parameter to send to admission control function unit the signing qos parameter of described user and described user, and from admission control function unit, read qos parameter court verdict 1 and send to bearer service administrative unit;
Admission control function unit: ask after qos parameter obtaining the signing qos parameter of user and user, carry out access judgement, judgement standard comprises: 1. whether can activate new service transmission channel; 2. qos parameter whether effectively 3. user request whether effectively 4. qos parameter whether within signing scope; 5. calculate the maximum bandwidth satisfying the demands in usable radio resources, and judge whether when towards connection, to reserve described maximum bandwidth resource; If meet above-mentioned five judgement standards simultaneously, ask the network QoS parameter of qos parameter and setting to compare the signing qos parameter of user, user, get minimum value in three and consult definite qos parameter as business transmission support module, and send to qos parameter negotiation functionality unit;
Bearer service administrative unit: the qos parameter court verdict 1 receiving from qos parameter negotiation functionality unit is sent to gateway module; Receive gateway module and consult qos parameter court verdict 2 afterwards, and qos parameter court verdict 2 is sent to main website RRM module by radio bearer link assignment demand signalling; Receive the radio bearer link assignment response signaling that main website RRM module sends, and the qos parameter in described signaling is sent to main website qos signaling transceiver module;
The signing functional unit of controlling: for the signing qos parameter of inquiring user.
9. the multi-service QoS support method of a kind of ultra-large VSAT system according to claim 5, is characterized in that: described gateway module comprises translation function unit, admission control function unit, qos parameter consultative management functional unit and bearer service management function at control plane; Wherein:
QoS consultative management functional unit: receive the qos parameter court verdict 1 that bearer service management function module is sent, first send to translation function unit to carry out the qos parameter conversion between internal network and external network, and the qos parameter after conversion is sent to admission control function unit, and from admission control function unit, read qos parameter court verdict 2 and send to bearer service administrative unit;
Admission control function unit: receive the qos parameter after the conversion that QoS consultative management functional unit sends, and according to the qos parameter after described conversion with external network resource is used and whether configuring condition judgement receives, demotes or refuse described qos parameter;
Translation function unit: realize the qos parameter conversion between internal network and external network according to the mapping relations of setting;
Bearer service management function: by the qos parameter court verdict 2 receiving from qos parameter consultative management functional unit, send to business transmission support module; The qos parameter court verdict 1 receiving from business transmission support module is sent to qos parameter consultative management functional unit.
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