CN101778431A - Admission control method for user access in base station system and device thereof - Google Patents
Admission control method for user access in base station system and device thereof Download PDFInfo
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- CN101778431A CN101778431A CN201010111057A CN201010111057A CN101778431A CN 101778431 A CN101778431 A CN 101778431A CN 201010111057 A CN201010111057 A CN 201010111057A CN 201010111057 A CN201010111057 A CN 201010111057A CN 101778431 A CN101778431 A CN 101778431A
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Abstract
The invention relates to an admission control method for user access in a base station system, comprising the following steps that: when receiving a service request of quality of service (QOS) of a user, the base station system acquires the current maximum available wireless bandwidth of a base station system in real time, acquires the current wireless bandwidth of the current distributed service flow of the base station system and obtains the current residual wireless bandwidth; and the base station system combines the QOS service flow grade of the user accessed into the base station system and the QOS service flow grade of the user of the current request according to the residual wireless bandwidth to carry out admission judgment on the QOS service flow of the user request. Correspondingly, the invention also provides an admission control device for user access in the base station system. The device comprises a service request receiving module, a residual wireless bandwidth acquiring module and an admission judging module. The method and the device determine whether the service flow is admitted by acquiring real-time wireless bandwidth information so as to ensure to provide the needed QOS service.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to the user inserts in a kind of base station system acceptance controlling method and device.
Background technology
(3rd-generation, the 3G) period after, (2nd Generation, 2G) data service of the speech business in period and low speed developed into the broadband wireless data business to second generation mobile communication technology to develop into the 3G (Third Generation) Moblie technology in wireless communication technology.
The business tine that 3G can offer the user more and more widely, comprise that common user uploads downloading service, based on Internet protocol (Internet Protocol, IP) Cheng Zai Voice ﹠ Video service quality (Quality of Service, QOS) professional (as: video telephone (Video Telephone, VT), the networking telephone (Voice overIP, VOIP) business), and QCHAT multicast service etc.If these business of realization, base station system should provide required bandwidth for these business, and can guarantee the service quality that these are professional.
A good base station system, have when the polytype service-user provides access service giving, provide the access service of qos requirement and the access service of non-QoS should for this user, can not cause reducing the use experience of existing subscriber in the base station system again, neither can reduce the QOS grade of existing subscriber in the base station system, also to make the access capability of base station system high as far as possible simultaneously, thereby can obtain high investment return ratio for equipment operator.In order to satisfy above-mentioned requirements, a kind of method that generally adopts is that the wireless bandwidth that the calling party is asked carries out resource and admission control at present.The method of several resource and admission controls has been proposed in the relevant patent documentation of disclosed resource and admission control.
Wherein a kind of conservative resource acceptance control method is that base station system is all reserved the required maximum bandwidth of this Business Stream for the Business Stream of each user's request, and the maximum bandwidth of reserving remains to the period of service end of this Business Stream always; Also set the maximum available bandwidth thresholding of base station system simultaneously.When reserve for all Business Streams the total bandwidth of maximum bandwidth when surpassing the maximum available bandwidth thresholding of base station system, base station system is directly refused the admittance request of new service flow.There are two problems in this method, and the one,, reserve maximum bandwidth for the Business Stream of request, reduced base station system QOS user's access capacity; The 2nd,, this method does not consider that the wireless bandwidth of base station system is dynamic change, even be that all Business Streams are reserved maximum bandwidth, under the situation that radio signal quality worsens, can not necessarily guarantee the QOS quality of services for users of connecting system, influence user's use experience equally.
Summary of the invention
The technical problem to be solved in the present invention provides acceptance controlling method and the device that the user inserts in a kind of base station system, thereby has overcome the low problem of QOS user's access capacity.
In addition, be on April 24th, 2009 in the applying date, application number is CN200910098058.3, and publication number is CN101534528A, and denomination of invention is in the patent documentation of " a kind of call connection control method ", a kind of call connection control method of proposition.According to the situation that takies of admitting the control resource, introduce admission probability and adjudicated whether insert new user in this method, also preestablished the wireless bandwidth thresholding of base station system and the total bandwidth that base station system can be distributed to the user.But since radio signal quality the time become characteristics, do not fully take into account in this method in base station system, the actual maximum available wireless bandwidth of base station system also is dynamic change, how also not to describe real-time acquisition system dynamic radio bandwidth.
Mentioned three problems that exist among conservative acceptance controlling method and the CN200910098058.3 above the invention solves: 1.QOS user's access capacity is low; 2. fixing wireless bandwidth thresholding is set, does not consider when actual wireless bandwidth changes with radio signal quality, how to have inserted under user's the QOS situation, how to improve the wireless bandwidth utilance of system as far as possible in assurance.3. do not consider preceding reverse access service stream is admitted control respectively.
In order to address the above problem, the invention provides the acceptance controlling method that the user inserts in a kind of base station system, comprising:
After base station system receives QoS of customer (QOS) service request, obtain the current maximum available wireless bandwidth of this base station system in real time, and obtain the current wireless bandwidth that has distributed the QOS Business Stream of this base station system, draw the wireless bandwidth of current residual;
Described base station system is according to described remaining wireless bandwidth, in conjunction with the user's of QOS Business Stream grade that inserts the user in the described base station system and current request QOS Business Stream grade, the QOS Business Stream of described user's request carried out acceptance judging.
Further, said method also has following characteristics:
The new QOS Business Stream of described user's request is forward direction QOS Business Stream and/or reverse QOS Business Stream; Described current maximum available wireless bandwidth comprises forward direction maximum available wireless bandwidth (MaxBWf) and/or reverse maximum available wireless bandwidth (MaxBWr); The wireless bandwidth of the QOS Business Stream that has distributed comprises forward direction QOS Business Stream bandwidth (AllocatedBWf) of having distributed and/or the reverse QOS Business Stream bandwidth (AllocatedBWr) of having distributed;
Receive user's new QOS service request when described base station system after, obtain forward direction sign and/or reverse sign in the QOS service request;
Described base station system is carried out acceptance judging according to described remaining forward direction wireless bandwidth and remaining reverse wireless bandwidth respectively to described forward direction QOS Business Stream and the described reverse QOS Business Stream that the user asks.
Further, said method also has following characteristics:
Described base station system is obtained the current maximum available wireless bandwidth of this base station system in real time and is specially:
The maximum available wireless bandwidth calculating parameter is periodically gathered and preserved to described base station system; When base station system is obtained the current maximum available bandwidth of this base station system in real time, directly read the maximum available wireless bandwidth calculating parameter that it is stored, calculate maximum available wireless bandwidth; Perhaps,
Described base station system is periodically gathered the maximum available wireless bandwidth calculating parameter, calculates and preserve maximum available wireless bandwidth; When base station system is obtained the current maximum available bandwidth of this base station system in real time, directly read the described maximum available wireless bandwidth that it is stored.
Further, said method also has following characteristics:
When described user initiates described QOS service request, provide one group of above QOS parameter, sort by the priority of described QOS parameter, what come the front is optimum, next is suboptimum; When base station system is received user's QOS forward business request, carry out acceptance controlling decision by one group of QOS parameter of optimum of user's request;
The QOS Business Stream of described user request is carried out acceptance judging to be specially:
Whether the wireless bandwidth resource of judging current residual is more than or equal to the QOS Business Stream bandwidth of user's request:
If the wireless bandwidth of base station system current residual, is directly admitted the QOS Business Stream of this user's request more than or equal to the QOS Business Stream bandwidth of user's request;
If the wireless bandwidth of base station system current residual is less than the QOS Business Stream bandwidth of user's request, the another set of suboptimum QOS parameter that continuing to obtain the user provides is proceeded acceptance judging.
Further, said method also has following characteristics:
If during the QOS Business Stream bandwidth of asking in all QOS parameters that the wireless bandwidth of described base station system current residual provides less than described user;
Described base station system judges whether and can admit this requesting users forward direction QOS Business Stream by the QOS Business Stream grade that reduces user in the access base station system;
If, reduce at least one QOS Business Stream grade in the connecting system, admit user's forward direction QOS Business Stream;
Otherwise exclude the QOS Business Stream that this user asks.
Further, said method also has following characteristics:
Described base station system judges that also whether described maximum available wireless bandwidth is less than the current wireless bandwidth that has distributed the QOS Business Stream after obtaining maximum available wireless bandwidth and the current wireless bandwidth that has distributed the QOS Business Stream;
If whether described maximum available wireless bandwidth is less than the current wireless bandwidth that has distributed the QOS Business Stream, described base station system reduces at least one QOS grade of service that has inserted, and the maximum available wireless bandwidth of obtaining in real time up to described base station system is more than or equal to the current wireless bandwidth that has distributed the QOS Business Stream.
Further, said method also has following characteristics:
At least one QOS grade of service of described reduction is specially described base station system according to the current QOS wireless bandwidth that has distributed, and suitably reduces the dispatching priority of at least one Business Stream in the scope that the described QOS grade of service allows.
In order to address the above problem, the present invention also provides the admission control device that the user inserts in a kind of base station system, and described device comprises service request receiver module, residue wireless bandwidth acquisition module and acceptance judging module:
Described service request receiver module is used to receive QoS of customer (QOS) service request, and indicates described residue wireless bandwidth acquisition module, and the QOS Business Stream grade that described user is asked sends to described acceptance judging module;
Described residue wireless bandwidth acquisition module, be used for after the indication that receives described service request receiver module, obtain the current maximum available wireless bandwidth of this base station system in real time, and obtain the current wireless bandwidth that has distributed the QOS Business Stream of this base station system, draw the wireless bandwidth of current residual and send to described acceptance judging module;
Described acceptance judging module, be used for obtaining the user's who has inserted described base station system QOS Business Stream grade, according to described remaining wireless bandwidth, in conjunction with the user's of described QOS Business Stream grade that has inserted the user in the described base station system and described current request QOS Business Stream grade, the QOS Business Stream of described user's request is carried out acceptance judging.
Further, said apparatus also has following characteristics:
Described device also comprises acquisition module and memory module;
Described acquisition module is used for periodically gathering the maximum available wireless bandwidth calculating parameter; And obtain described maximum available wireless bandwidth according to the maximum available wireless bandwidth calculating parameter, and described maximum available wireless bandwidth is sent to described memory module, perhaps directly described maximum available wireless bandwidth calculating parameter is sent to memory module;
Described memory module is used for described maximum available wireless bandwidth or maximum available wireless bandwidth calculating parameter that the storage of collected module is sent;
Described residue wireless bandwidth acquisition module directly reads the maximum available wireless bandwidth calculating parameter in the described memory module when obtaining the current maximum available wireless bandwidth of this base station system in real time, calculate maximum available wireless bandwidth; Perhaps, directly read described maximum available wireless bandwidth in the described memory module.
Further, said apparatus also has following characteristics:
Described device also comprises the degradation module;
Described acquisition module also sends to described degradation judging module with described maximum available wireless bandwidth or described maximum available wireless bandwidth calculating parameter;
Described judging module, be used for getting access to maximum available wireless bandwidth, or obtain maximum available wireless bandwidth according to described maximum available wireless bandwidth calculating parameter, and obtain the current wireless bandwidth that has distributed the QOS Business Stream of this base station system, judge that whether described maximum available wireless bandwidth is less than the current wireless bandwidth that has distributed the QOS Business Stream; If whether described maximum available wireless bandwidth is less than the current wireless bandwidth that has distributed the QOS Business Stream, described degradation module reduces at least one QOS grade of service that has inserted, up to described maximum available wireless bandwidth more than or equal to the current wireless bandwidth that has distributed the QOS Business Stream.
Adopt said method and device, when user's new QOS Business Stream inserts, obtain real-time forward direction wireless bandwidth information, oppositely wireless bandwidth information but not pre-configured bandwidth, determine whether the QOS Business Stream admitting this Business Stream and admit any priority of this Business Stream, can provide required QOS service with after guaranteeing will this Business Stream to insert.In another embodiment, in QOS user's acceptable scope, maximized the QOS Business Stream capacity of system.In another embodiment, give before the system that the wireless signal real-time change causes oppositely under the situation of wireless bandwidth real-time change, how to guarantee the QOS user's of connecting system use experience.
Description of drawings
Fig. 1 is the admittance control procedure of embodiment of the invention base station system;
When Fig. 2 is the access of embodiment of the invention user forward direction QOS Business Stream, the admission judgment process of base station system;
Fig. 3 is the quality of wireless signal when changing, and base station system is adjusted the process of QOS customer service flow priority;
Fig. 4 is the admission control device schematic diagram of the embodiment of the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described in further detail, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
The present invention proposes a kind of when base station system receives user's new service flow request, base station system is obtained real-time forward direction wireless bandwidth residue situation and/or reverse Radio Resource residue situation, and take all factors into consideration the user's of the QOS Business Stream grade of user in the access base station system and current request QOS Business Stream grade, make the judgement of whether admitting new service flow.
In addition, the present invention has also considered under the situation that radio signal quality changes, by adjusting the priority that forward business flows and/or reverse traffic flows of the user's of connecting system QOS Business Stream, make under the situation that radio signal quality worsens, still can provide and satisfy the access service that QOS requires for the user service flow that has QOS to require in the access base station system.
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
In the present embodiment, after base station system is received user's new QOS traffic request, obtain the current maximum available wireless bandwidth of this base station system in real time, and obtain the current wireless bandwidth that has distributed the QOS Business Stream of this base station system, draw the wireless bandwidth of current residual, according to remaining wireless bandwidth QOS Business Stream grade, the new service flow of user's request is carried out acceptance judging in conjunction with the user of the QOS Business Stream grade of the user in the access base station system and current request.
Wherein, the new QOS Business Stream of user's request can be forward direction QOS Business Stream and/or reverse QOS Business Stream; Wireless bandwidth can be forward direction wireless bandwidth and/or reverse wireless bandwidth, thereby current maximum available wireless bandwidth comprises forward direction maximum available wireless bandwidth MaxBWf and/or reverse maximum available wireless bandwidth MaxBWr; The wireless bandwidth of the QOS Business Stream that has distributed comprises forward direction QOS Business Stream bandwidth AllocatedBWf that has distributed and/or the reverse QOS Business Stream bandwidth AllocatedBWr that has distributed;
Base station system is carried out acceptance judging according to remaining forward direction wireless bandwidth and remaining reverse wireless bandwidth respectively to forward direction QOS Business Stream and the reverse QOS Business Stream that the user asks.
As shown in Figure 1, specifically comprise the steps:
Step 10, base station system receive user's new QOS traffic request;
Step 11, base station system are obtained the current maximum available wireless bandwidth of this base station system in real time, and obtain the current QOS wireless bandwidth that has distributed, and draw the maximum wireless bandwidth of current residual;
Preferably, base station system is obtained the current maximum available wireless bandwidth of this base station system in real time and can be realized in the following way:
Maximum available wireless bandwidth information is periodically gathered and preserved to base station system; When base station system is obtained current base station system maximum available bandwidth in real time, directly read its maximum available wireless bandwidth information of storing and obtain maximum available wireless bandwidth, thereby can realize obtaining in real time.
In one embodiment, can be that the maximum available wireless bandwidth calculating parameter is periodically gathered and preserved to base station system; When base station system is obtained current base station system maximum available bandwidth in real time, directly read the maximum available wireless bandwidth calculating parameter that it is stored, calculate maximum available wireless bandwidth.
In another embodiment, can be that base station system is periodically gathered the maximum available wireless bandwidth calculating parameter, calculate and preserve maximum available wireless bandwidth; When base station system is obtained current base station system maximum available bandwidth in real time, directly read the maximum available wireless bandwidth that it is stored.
Certainly, the present invention is not limited to this, as can also gather and calculate current base station system maximum available wireless bandwidth after receiving the user traffic flow request.
Wherein, for the forward direction maximum available wireless bandwidth:
Base station system is periodically gathered forward direction throughput ThruptF and forward direction Time Slot Occupancy rate IdleT and forward direction bandwidth and is adjusted factor B fFactor, calculates the current forward direction maximum available wireless bandwidth of this base station system MaxBWf by MaxBWf=ThruptF * BfFactor ÷ IdleT; It is relevant with the type of concrete QOS access service that the forward direction bandwidth is adjusted factor B fFactor, needs specifically type of service and carry out reasonable disposition in conjunction with the application on the engineering of basis.The span that this forward direction bandwidth is adjusted factor B fFactor is: (0,1].
For reverse maximum available wireless bandwidth:
Base station system is periodically gathered the situation that the takies bit (RA) and the reverse average throughput ThruptR of reverse link, calculate the reverse free time according to RA and compare RABIdleRatio, adjust factor B rFactor in conjunction with inverse bandwidth, calculate the current reverse maximum available wireless bandwidth MaxBWf of this base station system by MaxBWr=ThruptR * BrFactor ÷ RABIdleRatio.BrFactor is relevant with concrete QOS type of service, needs to carry out reasonable disposition according to concrete type of service and in conjunction with the application on the engineering, and the span that this inverse bandwidth is adjusted factor B rFactor is: for (0,1]).
Step 13, base station system is carried out acceptance judging according to remaining wireless bandwidth to user's requested service stream.
The QOS Business Stream of user request is carried out acceptance judging to be specially:
Whether the wireless bandwidth resource of judging current residual is more than or equal to the QOS Business Stream bandwidth of user's request:
If the wireless bandwidth of base station system current residual, is directly admitted the QOS Business Stream of this user's request more than or equal to the QOS Business Stream bandwidth of user's request;
Preferably, if the QOS Business Stream bandwidth that the wireless bandwidth of base station system current residual is asked less than the user, the another set of suboptimum QOS parameter that continuing to obtain the user provides is proceeded acceptance judging.
Certainly, also can be not limited thereto, if the wireless bandwidth of base station system current residual can directly exclude less than the QOS Business Stream bandwidth of user's request.
With forward direction QOS service request is example, receive user's new QOS service request when base station system after, obtain forward direction sign and/or reverse sign in the QOS service request, if the Business Stream of user request has forward direction QOS Business Stream, judge that then the forward direction maximum obtained in real time can wireless bandwidth MaxBWf deducts the forward direction QOS Business Stream bandwidth AllocatedBWf that distributed whether more than or equal to the forward business stream bandwidth FlowBFReq of user applies.
If MaxBWf-AllocatedBWf＞=FlowBFReq, promptly the remaining wireless bandwidth of the current forward direction of base station system is then directly admitted the forward direction QOS service request of this user applies more than or equal to the forward direction QOS Business Stream bandwidth of user applies;
If MaxBWf-AllocatedBWf＜FlowBFReq, be that the forward direction wireless bandwidth of base station system current residual is not when satisfying the forward direction QOS Business Stream bandwidth of user applies, optimal way is for directly initiate admitting refusal, but the another set of suboptimum QOS parameter that continues to obtain the user and provide is proceeded acceptance judging.
When the user initiates the QOS service request, can provide one group of above QOS parameter usually, according to priority sort, what come the front usually is optimum, next is suboptimum, reports base station system in this order.When user's QOS forward business request is received by system, at first carry out acceptance controlling decision by one group of QOS parameter of optimum of user's request.
The admittance process of the admittance process of customer reverse QOS Business Stream and forward direction QOS Business Stream is similar, is not describing in detail here.
With the forward direction Business Stream is example, and above-mentioned steps 12 and step 13 comprise the steps: specifically as shown in Figure 2
Step 110: the forward direction throughput ThruptF and the Time Slot Occupancy rate IdleT that gather the base station periodic report;
Step 120: adjust factor B fFactor in conjunction with the forward direction bandwidth and obtain the current forward direction maximum available wireless bandwidth of base station system MaxBWf; And obtain the current forward direction wireless bandwidth that has distributed in this base station system, obtain the forward direction wireless bandwidth of current residual;
Step 130: judge that the remaining forward direction wireless bandwidth of base station system is whether more than or equal to the QOS forward business stream bandwidth of user applies; If, execution in step 140, otherwise execution in step 150;
Step 140, the forward direction QOS Business Stream of directly admitting the user to ask finishes;
Step 150, judge whether can be by reducing this user's forward direction QOS Business Stream priority with this user admission; If, execution in step 160, otherwise execution in step 170;
Step 160 reduces this user's QOS forward business flow priority and admits forward direction QOS Business Stream, finishes;
Step 170 judges whether and can admit this requesting users forward direction QOS Business Stream by the QOS forward business flow priority that reduces user in the access base station system; If, execution in step 180, otherwise execution in step 190;
Step 180 reduces at least one QOS forward business flow priority in the connecting system, admits user's forward direction QOS Business Stream, finishes;
Step 190, the system resource anxiety excludes the forward direction QOS Business Stream that this user asks.
If the user provides a few cover QOS parameters, the result that base station system is carried out admission judgment is the access service request that the current remaining forward direction wireless bandwidth of base station system can not satisfy the user, and the forward direction wireless bandwidth anxiety of current sector is described.But still can directly not initiate to admit and refuse, which QOS forward business stream is base station system discern and demote and handle the forward direction wireless bandwidth that the back discharges and add that the current remaining wireless bandwidth in sector can satisfy this user's the minimum QOS service request of priority from the QOS Business Stream of having admitted.The purpose of doing like this is the use experience that does not as far as possible influence the QOS user who has inserted.On the other hand, must insert by a certain cover QOS parameter if the user specifies, base station system will be coordinated resource for this user by the QOS forward business stream bandwidth of user's appointment.
In addition, if forward direction maximum available wireless bandwidth MaxBWf＜AllocatedBWf that base station system is obtained in real time and/or oppositely during maximum available wireless bandwidth MaxBWr＜AllocatedBWr, show because the variation of wireless environment (as the variation of the environment of eating dishes without rice or wine (as weather condition), because of terminal move cause be subjected to that building stops, the variation of customer service pattern etc.), base station system can not continue as the QOS Business Stream that has inserted service is provided.At this moment, base station system can further be demoted to the QOS Business Stream that has inserted, mode with reducing at least one QOS grade of service makes under the situation of wireless environment variation, still can provide the service of satisfying primary demand for the QOS user who has inserted.With the forward direction wireless bandwidth is example, and this process specifically can comprise the steps: as shown in Figure 3
Step 220: adjust factor B fFactor in conjunction with the forward direction bandwidth and obtain the current forward direction maximum available wireless bandwidth of base station system MaxBWf; And obtain the current forward direction wireless bandwidth that has distributed in this base station system, obtain the forward direction wireless bandwidth of current residual;
Whether step 230 judges the current forward direction maximum available wireless bandwidth of base station system MaxBWf more than or equal to the current forward direction wireless bandwidth that has distributed in this base station system, if execution in step 240, otherwise execution in step 250;
Step 240 does not need the QOS Business Stream of the user in the access base station system to demote;
Step 250 is demoted at least one the QOS Business Stream in the access base station system.
Preferably, base station system is chosen the highest grade of forward direction QOS Business Stream user and is allowed to carry out user's set that degradation is handled, and at least one forward direction QOS Business Stream of picked at random carries out degraded operation, until satisfying MaxBWf＞AllocatedBWf.
If behind the QOS Business Stream degradation that all forward business stream grades is the highest, still do not satisfy MaxBWf＞AllocatedBWf, need carry out similar degradation to the QOS forward business stream of suboptimum and handle.
In addition, choosing needs degradation forward direction QOS Business Stream that the plurality of optional mode is arranged, as, that restriction, the certain customers that can be based on flow download for a long time and upload is professional, occupying system resources is more, need the consumption of limited subscriber to Internet resources, consumption when particularly busy etc. can consider to fall suitably low user's priority etc., and its purpose all is in order to make base station system forward direction maximum available wireless bandwidth satisfy the QOS user's who has inserted in the system forward direction QOS Business Stream bandwidth needs.
Preferably, reduce at least one forward direction QOS grade of service and be specially: base station system suitably reduces the dispatching priority of at least one Business Stream according to the current QOS wireless bandwidth that has distributed in the scope that user's the QOS grade of service allows;
Further, the dispatching priority that reduces a Business Stream at least can be to be reduced to the bandwidth that this user distributes.
Oppositely the processing and the forward direction of QOS Business Stream are similar, also no longer elaborate here.
Accordingly, present embodiment also provides the admission control device that the user inserts in a kind of base station system that realizes above-mentioned acceptance controlling method, as shown in Figure 4, comprises service request receiver module, residue wireless bandwidth acquisition module and acceptance judging module:
The service request receiver module is used to receive QoS of customer (QOS) service request, and indication residue wireless bandwidth acquisition module, and the QOS Business Stream grade that the user is asked sends to the acceptance judging module;
Residue wireless bandwidth acquisition module, be used for after the indication that receives the service request receiver module, obtain the current maximum available wireless bandwidth of this base station system in real time, and obtain the current wireless bandwidth that has distributed the QOS Business Stream of this base station system, draw the wireless bandwidth of current residual and send to the acceptance judging module;
The acceptance judging module, be used for obtaining the user's who has inserted described base station system QOS Business Stream grade, according to remaining wireless bandwidth, in conjunction with the user's of QOS Business Stream grade that inserts the user in the described base station system and current request QOS Business Stream grade, the QOS Business Stream of user's request is carried out acceptance judging.
Further, this device also comprises acquisition module and memory module;
Acquisition module is used for periodically gathering the maximum available wireless bandwidth calculating parameter; And obtain maximum available wireless bandwidth according to the maximum available wireless bandwidth calculating parameter, and maximum available wireless bandwidth is sent to memory module, perhaps directly the maximum available wireless bandwidth calculating parameter is sent to memory module;
Memory module is used for maximum available wireless bandwidth or maximum available wireless bandwidth calculating parameter that the storage of collected module is sent;
Residue wireless bandwidth acquisition module directly reads the maximum available wireless bandwidth calculating parameter in the memory module when obtaining the current maximum available wireless bandwidth of this base station system in real time, calculate maximum available wireless bandwidth; Perhaps, directly read maximum available wireless bandwidth in the memory module.
Further, this device also comprises the degradation module;
Acquisition module also sends to the degradation judging module with maximum available wireless bandwidth or maximum available wireless bandwidth calculating parameter;
Judging module, be used for getting access to maximum available wireless bandwidth, or obtain maximum available wireless bandwidth according to the maximum available wireless bandwidth calculating parameter, and obtain the current wireless bandwidth that has distributed the QOS Business Stream of this base station system, judge that whether maximum available wireless bandwidth is less than the current wireless bandwidth that has distributed the QOS Business Stream; If whether maximum available wireless bandwidth is less than the current wireless bandwidth that has distributed the QOS Business Stream, the degradation module reduce the QOS grade of service that at least one has inserted, up to maximum available wireless bandwidth more than or equal to the current wireless bandwidth that has distributed the QOS Business Stream.
After adopting technique scheme, the present invention compares following advantage with the prior art scheme: when user QOS Business Stream inserts, obtain real-time forward direction wireless bandwidth information, oppositely wireless bandwidth information but not pre-configured bandwidth, determine whether admitting this Business Stream, and the QOS Business Stream of admitting any priority of this Business Stream, to guarantee and will can provide required QOS service after this Business Stream access.In addition, after the QOS Business Stream of attempting these all priority of user is all admitted failure, directly do not refuse this user's QOS service request, but in the scope that the QOS Business Stream priority that inserts the user allows, suitably reduction has inserted user's QOS Business Stream grade.The benefit of doing like this is in user's QOS Business Stream acceptable scope, to have maximized the QOS Business Stream capacity of base station system.In addition, the present invention gives before the system that the wireless signal real-time change causes oppositely under the situation of wireless bandwidth real-time change, how to guarantee the QOS user's of connecting system use experience, promptly periodically gather the preceding reverse real-time bandwidth of base station system and compare with the preceding reverse wireless bandwidth of the QOS Business Stream that has distributed, with the QOS priority level that determines whether suitable reduction has inserted the QOS Business Stream, thus all users' use experience in the assurance system.
Below in conjunction with the foregoing description, introduce application example of the present invention in detail.
Example one: user's forward direction QOS Business Stream is admitted process:
The forward direction wireless bandwidth information of base station system collection comprises: ThruptF=2000kbps, IdleT=0.75; The AllocatedBWf=2000kbps that has distributed; Calculating the current forward direction maximum available bandwidth of base station system MaxBWf is 2133.3kbps, and then current forward direction remaining bandwidth is 133.3kbps;
If the forward direction QOS Business Stream priority of asking in this is:
BandReqF0＝200kbps；
BandReqF1＝150kbps；
BandReqF2＝120kbps；
Therefore, whether admit the judged result of new user's forward direction QOS Business Stream as follows for this application:
Can not admit BandReqF0 and BandReqF1;
Can admit BandReqF2,
Therefore, user's forward direction QOS Business Stream is admitted successfully.
Example two: customer reverse QOS Business Stream is admitted process:
The forward direction wireless bandwidth information of base station system collection comprises: ThruptR=1239kbps, RABIdleRatio=0.56, BrFactor=0.8, the AllocatedBWr=1600kbps that has distributed; Calculate the current reverse maximum available bandwidth MaxBWr=1770kbps of base station system; Then current forward direction remaining bandwidth is 170kbps;
If the reverse QOS Business Stream priority of this application is:
BandReqR0＝200kbps；
BandReqR1＝150kbps；
BandReqR2＝120kbps；
Therefore, whether admit the judged result of new customer reverse QOS Business Stream as follows for this application:
Can not admit BandReqR0;
Can admit BandReqR1;
Therefore, customer reverse QOS Business Stream is admitted successfully.
Example three: the adjustment process of QOS reverse traffic flow priority when radio signal quality changes:
The reverse wireless bandwidth information of base station system collection comprises: ThruptR=1102kbps, RABIdleRatio=0.56, BrFactor=0.8; The AllocatedBWr=1600kbps that has distributed; The current reverse maximum available bandwidth MaxBWr=1575kbps of base station system then;
MaxBWr＜AllocatedBWr, therefore, the reverse maximum available bandwidth of base station system is not enough to all the QOS reverse traffic streams in the containment system, needs to reduce the grade that part has inserted QOS reverse traffic stream, so that MaxBWr＜AllocatedBWr.
Compared with prior art, the present invention has realized the dynamic accommodation to the QOS user's of base station system preceding, reverse traffic stream.Forward direction is gathered the forward direction throughput ThruptF and the Time Slot Occupancy rate IdleT of base station periodic report, and adjust factor B fFactor in conjunction with inverse bandwidth and come the current forward direction maximum available wireless bandwidth of estimating system MaxBWf, and its forward direction QOS Business Stream bandwidth with new user compared with the forward direction QOS Business Stream bandwidth AllocatedBWf sum of having distributed, whether admit this user's forward direction QOS Business Stream still to demote to admit this user's forward direction QOS Business Stream with decision, thereby or in the reduction system grade of other user's forward directions QOS Business Stream this forward direction QOS Business Stream is admitted successfully.Oppositely come the current reverse maximum available wireless bandwidth MaxBWr of dynamic estimation system with the busy spare time of reverse RA than RABIdleRatio by the reverse throughput ThruptR that gathers the base station periodic report, the reverse QOS Business Stream bandwidth AllocatedBWr sum of having distributed with the reverse QOS Business Stream BandReqR and the system of new user applies compares, and adopts with the similar mode of forward direction and carries out admission processing.Under the situation of wireless signal conversion, when no QOS user inserts, preceding, reverse maximum available wireless bandwidth MaxBWf and MaxBWr by periodicity dynamic estimation base station system, and with system in the preceding reverse QOS Business Stream bandwidth of having distributed compare, whether need to reduce part QOS Business Stream grade in the base station system with decision, the system that makes can provide the service of satisfying Business Stream priority demand for all QOS Business Streams.
Only be preferred case study on implementation of the present invention below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the acceptance controlling method that the user inserts in the base station system comprises:
After base station system receives QoS of customer (QOS) service request, obtain the current maximum available wireless bandwidth of this base station system in real time, and obtain the current wireless bandwidth that has distributed the QOS Business Stream of this base station system, draw the wireless bandwidth of current residual;
Described base station system is according to described remaining wireless bandwidth, in conjunction with the user's of QOS Business Stream grade that inserts the user in the described base station system and current request QOS Business Stream grade, the QOS Business Stream of described user's request carried out acceptance judging.
2. the method for claim 1 is characterized in that:
The new QOS Business Stream of described user's request is forward direction QOS Business Stream and/or reverse QOS Business Stream; Described current maximum available wireless bandwidth comprises forward direction maximum available wireless bandwidth (MaxBWf) and/or reverse maximum available wireless bandwidth (MaxBWr); The wireless bandwidth of the QOS Business Stream that has distributed comprises forward direction QOS Business Stream bandwidth (AllocatedBWf) of having distributed and/or the reverse QOS Business Stream bandwidth (AllocatedBWr) of having distributed;
Receive user's new QOS service request when described base station system after, obtain forward direction sign and/or reverse sign in the QOS service request;
Described base station system is carried out acceptance judging according to described remaining forward direction wireless bandwidth and remaining reverse wireless bandwidth respectively to described forward direction QOS Business Stream and the described reverse QOS Business Stream that the user asks.
3. method as claimed in claim 1 or 2 is characterized in that, described base station system is obtained the current maximum available wireless bandwidth of this base station system in real time and is specially:
The maximum available wireless bandwidth calculating parameter is periodically gathered and preserved to described base station system; When base station system is obtained the current maximum available bandwidth of this base station system in real time, directly read the maximum available wireless bandwidth calculating parameter that it is stored, calculate maximum available wireless bandwidth; Perhaps,
Described base station system is periodically gathered the maximum available wireless bandwidth calculating parameter, calculates and preserve maximum available wireless bandwidth; When base station system is obtained the current maximum available bandwidth of this base station system in real time, directly read the described maximum available wireless bandwidth that it is stored.
4. method as claimed in claim 1 or 2 is characterized in that:
When described user initiates described QOS service request, provide one group of above QOS parameter, sort by the priority of described QOS parameter, what come the front is optimum, next is suboptimum; When base station system is received user's QOS forward business request, carry out acceptance controlling decision by one group of QOS parameter of optimum of user's request;
The QOS Business Stream of described user request is carried out acceptance judging to be specially:
Whether the wireless bandwidth resource of judging current residual is more than or equal to the QOS Business Stream bandwidth of user's request:
If the wireless bandwidth of base station system current residual, is directly admitted the QOS Business Stream of this user's request more than or equal to the QOS Business Stream bandwidth of user's request;
If the wireless bandwidth of base station system current residual is less than the QOS Business Stream bandwidth of user's request, the another set of suboptimum QOS parameter that continuing to obtain the user provides is proceeded acceptance judging.
5. the method for claim 1 is characterized in that:
If during the QOS Business Stream bandwidth of asking in all QOS parameters that the wireless bandwidth of described base station system current residual provides less than described user;
Described base station system judges whether and can admit this requesting users forward direction QOS Business Stream by the QOS Business Stream grade that reduces user in the access base station system;
If, reduce at least one QOS Business Stream grade in the connecting system, admit user's forward direction QOS Business Stream;
Otherwise exclude the QOS Business Stream that this user asks.
6. as claim 1 or 2 or 5 described methods, it is characterized in that:
Described base station system judges that also whether described maximum available wireless bandwidth is less than the current wireless bandwidth that has distributed the QOS Business Stream after obtaining maximum available wireless bandwidth and the current wireless bandwidth that has distributed the QOS Business Stream;
If whether described maximum available wireless bandwidth is less than the current wireless bandwidth that has distributed the QOS Business Stream, described base station system reduces at least one QOS grade of service that has inserted, and the maximum available wireless bandwidth of obtaining in real time up to described base station system is more than or equal to the current wireless bandwidth that has distributed the QOS Business Stream.
7. method as claimed in claim 6 is characterized in that:
At least one QOS grade of service of described reduction is specially described base station system according to the current QOS wireless bandwidth that has distributed, and suitably reduces the dispatching priority of at least one Business Stream in the scope that the described QOS grade of service allows.
8. the admission control device that the user inserts in the base station system is characterized in that, described device comprises service request receiver module, residue wireless bandwidth acquisition module and acceptance judging module:
Described service request receiver module is used to receive QoS of customer (QOS) service request, and indicates described residue wireless bandwidth acquisition module, and the QOS Business Stream grade that described user is asked sends to described acceptance judging module;
Described residue wireless bandwidth acquisition module, be used for after the indication that receives described service request receiver module, obtain the current maximum available wireless bandwidth of this base station system in real time, and obtain the current wireless bandwidth that has distributed the QOS Business Stream of this base station system, draw the wireless bandwidth of current residual and send to described acceptance judging module;
Described acceptance judging module, be used for obtaining the user's who has inserted described base station system QOS Business Stream grade, according to described remaining wireless bandwidth, in conjunction with the user's of described QOS Business Stream grade that has inserted the user in the described base station system and described current request QOS Business Stream grade, the QOS Business Stream of described user's request is carried out acceptance judging.
9. device as claimed in claim 8 is characterized in that described device also comprises acquisition module and memory module;
Described acquisition module is used for periodically gathering the maximum available wireless bandwidth calculating parameter; And obtain described maximum available wireless bandwidth according to the maximum available wireless bandwidth calculating parameter, and described maximum available wireless bandwidth is sent to described memory module, perhaps directly described maximum available wireless bandwidth calculating parameter is sent to memory module;
Described memory module is used for described maximum available wireless bandwidth or maximum available wireless bandwidth calculating parameter that the storage of collected module is sent;
Described residue wireless bandwidth acquisition module directly reads the maximum available wireless bandwidth calculating parameter in the described memory module when obtaining the current maximum available wireless bandwidth of this base station system in real time, calculate maximum available wireless bandwidth; Perhaps, directly read described maximum available wireless bandwidth in the described memory module.
10. device as claimed in claim 9 is characterized in that described device also comprises the degradation module;
Described acquisition module also sends to described degradation judging module with described maximum available wireless bandwidth or described maximum available wireless bandwidth calculating parameter;
Described judging module, be used for getting access to maximum available wireless bandwidth, or obtain maximum available wireless bandwidth according to described maximum available wireless bandwidth calculating parameter, and obtain the current wireless bandwidth that has distributed the QOS Business Stream of this base station system, judge that whether described maximum available wireless bandwidth is less than the current wireless bandwidth that has distributed the QOS Business Stream; If whether described maximum available wireless bandwidth is less than the current wireless bandwidth that has distributed the QOS Business Stream, described degradation module reduces at least one QOS grade of service that has inserted, up to described maximum available wireless bandwidth more than or equal to the current wireless bandwidth that has distributed the QOS Business Stream.
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