CN1802000A - A wireless communication system mixed service access control method - Google Patents
A wireless communication system mixed service access control method Download PDFInfo
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Abstract
Present invention relates to a admission control method of wireless communication system for wireless access network access network. It determines user applying accessing service QoS requisition and obtaining user's priority according to user's call request, then determine said service equivalent bandwidth, when wireless communication system provided resource is greater than user applying accessing service equivalent bandwidth, then accepting said user accessing, otherwise rejecting said user accessing. Said invention can distinguish user with different priority and provides QoS insured service.
Description
Technical field
The present invention relates to wireless communication system.Relate in particular in the wireless communication system acceptance controlling method in the mixed service of wave point part.
Background technology
Provide service satisfied, that have QoS to ensure for ensuring to the user, any wireless communication system provides enough Radio Resources all must for the user who inserts in the Access Network part, comprises bandwidth, power etc.And the resource of system is limited, and therefore, communication system just must limit the number of users of connecting system.The mechanism that realizes above-mentioned functions just is called as admission control mechanism (also claiming access control mechanism) in this area.
In simple terms, Quality of Service is to characterize the quality that the user obtains serving.It has multiple attribute, comprising: service priority, reliability, time delay (delay variation) and throughput/bandwidth.Above-mentioned quality of service at business itself.And different users expects when enjoying with a kind of business or the quality of service of requirement also can be different, have so just introduced the notion of user's priority again.
In communication system, amount of bandwidth is an important factors that influences quality of service.For with a kind of business, its quality of service changes for the variation of the amount of bandwidth of its distribution with system.In communication system, especially in the wireless communication system, frequency resource is very rare resource, even the business of same kind, operator is also according to the difference of user's priority, for it provides corresponding bandwidth resource (be sensu lato bandwidth resources, comprise frequency, time slot, code word etc.) here.Just provide the quality of service that meets its priority (quality of service) for the user.
Up to now, in Internet, also can't in wide scope, realize secure QoS.And in the wireless packet data service, that can provide at present as each manufacturer in the business such as GPRS and WiFi, WiMAX all is best effort (Best Effort), and the QoS security mechanism can't be provided.More than these all be since the bandwidth institute that the user that system give to insert provides guarantee extremely.In 3-G (Generation Three mobile communication system), wireless packet data service can be carried on the QoS that provides guarantee in the circuit domain, but can not make full use of the burst characteristic of Packet data service, gives full play to the high advantage of statistic multiplexing efficient.In addition, though defined more complete QoS attribute and parameter in the 3G system, realize the not definition in the 3G standard of the secure necessary RRM mechanism of QoS about packet domain.Therefore existing at present (second generation, 2G) and domestic be about to commercialization (third generation, (Radio Resource Management, RRM) mechanism ensures the QoS of Packet data service 3G) all to need rational RRM in the mobile communications network.
Simultaneously, all be the priority that does not have clear and definite differentiation user at business itself up to now in the disclosed RRM mechanism of all existing wireless communication systems and industry, and only paid close attention to the part attribute of quality of service, as reliability, and intactly do not consider all properties of quality of service.Can't be for the user provide real secure quality of service, as:
Keunyoung Kim etc. are studying when in the cdma system sub-district multiple business being arranged forward direction (descending) and the reverse acceptance controlling method of (up) link in " A Call Admission Algorithm for Multiple Class Trafficin CDMA Systems IEEE VTC Fall 2000; Boston Sept.24-28; 2000; 4.7.1.5 ", defined power ratio between the different business based on the professional pairing signal interference ratios of different bit rates (SIR).Its up link is admitted and is utilized the voice service number of users of equivalence to adjudicate in the control, and the equivalent voice user number that this method proposed is relevant with the traffic model of system, does not have universality.And this method do not distinguish user's priority, and only considered professional SIR requirement, do not consider the attribute such as priority, time delay, bandwidth of quality of service.
Choi etc. are in the U.S. Pat 6 that is entitled as " calling-control method in the base station of CDMA mobile radio communications system (CallControl Method in Base Station of CDMA Mobile Radio Communication System; August 21; 2001) ", 278, a kind of calling-control method of CDMA mobile radio communication network has been proposed in 882, obtain the forward link power-carrying of voice service by test in the given time, further calculate new access and switch the thresholding that inserts, according to calling out the result that the request of access may decide acceptance judging to the estimation of the influence that system loading caused.This patent is not carried out respectively according to the load condition of system's reality and the QoS of calling when the system loading prediction that new calling is inserted, and does not consider interference-limited situation.More do not distinguish user's priority.
Planting Tian Zhelang is in 97104491.0 the Chinese patent application being entitled as " according to the code division multiple address communication system of communication quality control access way ", application number, be the access of portable terminal in the control code division multiple access communication system, terminal is measured the data relevant with downlink signal quality as downlink signal quality data recommendation for admission to school base station in a predetermined time slot.The data that the data relevant with quality of uplink signal form quality of uplink signal are also measured in the base station in predetermined time slot.Base-station control apparatus is determined the communication quality in this base station service area from the uplink and downlink signal quality, and when definite communication quality difference, send to the base station and insert restricting signal, the line is busy handles to being sent to and carrying out from the new calling of other mobile radio terminal in the base station.This patent is not predicted the increment of system up-link interference power according to the QoS of call request.Do not distinguish user's priority yet.
Yellow superfine in number of patent application is 01105518.9 Chinese patent, a kind of acceptance controlling method of WCDMA system mixed service is proposed.The QoS (speed and the error rate require) that this patent has only been considered system loading and call business has ignored quality of service attributes such as service priority, time delay, throughput.This method is not distinguished user's priority yet simultaneously.
Dou Jianwu etc. have proposed up link mixed service short calling acceptance controlling method in a kind of WCDMA system in the Chinese patent of application number: 02139928.x.Admission control mechanism in this patent has only been considered the E in order to guarantee that the forthright the subject of knowledge and the object of knowledge of error code of service requires
b/ N
0, just can only guarantee reliability in the quality of service attribute, ignored quality of service attributes such as service priority, time delay, throughput.This method is not distinguished user's priority yet simultaneously.
Mooi Choo Chuah is in U.S. Pat 6,285, a kind of method (Method for Establishment of the Power level for Uplink DataTransmission in a Multiple Access System for Communications Networks of definite up-link transmission power has been proposed in 665, September 4,2001), but this patent has been ignored quality of service attributes such as service priority, time delay, throughput.This patent is not distinguished user's priority yet simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of acceptance controlling method that is applicable to mixed service in the wireless communication system, treat user, and ensure professional quality Q oS with different priorities with differentiation.
The invention provides a kind of acceptance controlling method of wireless communication system mixed service to achieve these goals, it is used for the Radio Access Network part, specifically comprises the following steps:
Determine the qos requirement of user applies access service according to user's call request;
Obtain user's priority;
Determine the equivalent bandwidth that this is professional according to user's the priority and the qos requirement of user applies access service;
Determine the resource that wireless communication system can provide;
Judge that resource that wireless communication system can provide is whether greater than the equivalent bandwidth of user applies access service, the resource that can provide when wireless communication system is during greater than the equivalent bandwidth of user applies access service, agree that then this user inserts, the inadequate resource that can provide when wireless communication system is then refused this user and is inserted when satisfying the equivalent bandwidth demand of user applies access service.
According to said method of the present invention, the qos requirement of described business comprises professional own priority, reliability, time delay and throughput.
According to said method of the present invention, user's priority is provided by the user, but the User Priority that priority that provides as the user and wireless communication system provide is not when being inconsistent, and the parameter that provides with wireless communication system is as the criterion.
According to said method of the present invention, when surplus resources is not enough to satisfy the user's that a plurality of applications simultaneously insert demand, then press the access of User Priority order.
According to said method of the present invention, the business that inserts for user applies is conventional session when professional, and described equivalent bandwidth is estimated by following formula:
BW
Effective=TH
On average+ Φ * (TH
Maximum-TH
On average)
Wherein,
BW
EffectiveThe equivalent bandwidth that expression is professional;
TH
On averageThe average bandwidth of representing this business need;
TH
MaximumThe maximum bandwidth of representing this business need;
The Φ value is that the priority according to the user, professional qos requirement determine that span is from 0 to 1, and wherein Ye Wu qos requirement is mainly considered professional priority, delay requirement.
According to said method of the present invention, according to the adaptive multi-rate coding of speech, be average bandwidth with the speech minimum speed limit required definitions of bandwidth of encoding, required definitions of bandwidth is a maximum bandwidth and flank speed is encoded.
According to said method of the present invention, when the user applies access service was streaming media service, described equivalent bandwidth was estimated by following formula:
BW
Effective=TH
On average+ Φ * (TH
Maximum-TH
On average)
Wherein,
BW
EffectiveThe equivalent bandwidth that expression is professional;
TH
On averageThe average bandwidth of representing this business need;
TH
MaximumThe maximum bandwidth of representing this business need;
The Φ value is chosen according to user's priority and professional qos requirement, span from 0 to 1, and wherein Ye Wu qos requirement is mainly considered professional priority, delay requirement.
According to said method of the present invention, when the user applies access service was interactive service, described equivalent bandwidth was estimated by following formula:
BW
Effective=TH
On average+ Φ * (TH
Maximum-TH
On average)
Wherein,
BW
EffectiveThe equivalent bandwidth that expression is professional;
TH
On averageThe average bandwidth of representing this business need;
TH
MaximumThe maximum bandwidth of representing this business need;
The Φ value is chosen according to user's priority and professional qos requirement, span from 0 to 1, and wherein according to said method of the present invention, professional qos requirement is mainly considered professional priority, reliability requirement.
According to said method of the present invention, described average bandwidth, maximum bandwidth and Φ value are decided by operator.
According to said method of the present invention, from described business, choose one section typical data source repeat playing, the size of dynamic adjustments bandwidth, add up time delay, the error rate, the packet loss a series of indexs of receiving terminal under different transmission bandwidth situations then, perhaps directly by the quality of people's subjective determination business, the bandwidth of the receptible professional lowest quality correspondence of user is taken as average bandwidth; After bandwidth increased to certain value, when continuation increase bandwidth can not significantly increase professional quality, this bandwidth was taken as this professional maximum bandwidth.
According to said method of the present invention, when the business that inserts when user applies is background service, when network operation, what of Radio Resource to set several equivalent bandwidth R according to for background service
i, priority and professional these qos parameters of priority according to the user are that a certain background service is selected an equivalent bandwidth from the equivalent bandwidth that sets then.
Description of drawings
Fig. 1 has provided the block diagram of mobile communication system partial function.
Fig. 2 has provided mobile communication system and has admitted control signaling process figure.
Fig. 3 has provided the theory diagram by professional average bandwidth of test method specified data and maximum bandwidth.
Fig. 4 has provided the equivalent bandwidth schematic diagram that speed has the business of fluctuation.
Fig. 5 has provided the acceptance controlling method flow chart of mobile communication system.
Embodiment
What wireless communication system can provide is professional varied, need consider the versatility and the extensibility of professional classification when the equivalent bandwidth of computing service.Be that the present invention is described in detail for example now to follow the method for in the QoS evolution process business being classified among the 3GPP.This sorting technique is divided into four classes (after the version of Rel ' 99) with all business: conventional session type business, streaming media service, interactive service and background service.The QOS of every kind of business comprises identical attribute, and just the grade of each attribute is according to different business and different.Before introducing the computational methods of professional equivalent bandwidth, provide the average bandwidth of a business and definite method of maximum bandwidth earlier.
For conventional session business such as speeches, its service rate is relatively constant, and therefore the bandwidth that needs is also more stable.All be to determine a fixed-bandwidth in common wireless communication system to voice service.But, in gsm system, introduced semi-velocity speech coding along with the progress of source coding technique; At the beginning of the WCDMA system design, just defined the adaptive multi-rate coding (AMR is from 4.75kbps to 12.2kbps) of speech.Here the required definitions of bandwidth of just the speech minimum speed limit being encoded is an average bandwidth, and required definitions of bandwidth is a maximum bandwidth and flank speed is encoded.
For speed fluctuation business such as data, video flowings, because professional self characteristics is difficult to grasp, and new business emerges in an endless stream, and being difficult to accurate analytical method is that miscellaneous service is determined its average bandwidth and maximum bandwidth.Can determine the average bandwidth and the maximum bandwidth of miscellaneous service with the method for test.Principle as shown in Figure 3.Can choose one section typical data source repeat playing at every kind of data service, the size of dynamic adjustments bandwidth, add up indexs such as the time delay of receiving terminal under different transmission bandwidth situations, the error rate, packet loss then, perhaps directly come the quality of subjective determination business by the people.The corresponding bandwidth of the acceptable professional lowest quality of user (comprising time delay, the error rate, packet loss etc.) is an average bandwidth.After bandwidth increased to certain value, when continuation increase bandwidth can not significantly increase professional quality, this bandwidth can be regarded as this professional maximum bandwidth.
Determined to provide a kind of method of estimating the miscellaneous service equivalent bandwidth below after the professional average and maximum bandwidth, wherein so-called " equivalent bandwidth " be for the qos requirement that ensures business and can distinguish User Priority need distribute to this professional bandwidth.
Conventional session type business
This business features is that it is a kind of constant rate of speed business substantially.In general, its average bandwidth and maximum bandwidth are as mentioned above.Its equivalent bandwidth can be estimated by following formula:
BW
Effective=TH
On average+ Φ * (TH
Maximum-TH
On average)
Wherein,
BW
EffectiveThe equivalent bandwidth that expression is professional
TH
On averageThe average bandwidth of expression business need
TH
MaximumThe maximum bandwidth of expression business need
Φ is and relevant parameters such as User Priority, service priority, service delay that this value is determined by operator, span from 0 to 1.User Priority, service priority, service delay require high more then Φ value big more.The big more system of Φ value is that this business reserved resource is many more, guarantees that the reliability of professional QoS is high more.The cost of high reliability can be admitted the business/number of users of service to reduce simultaneously.If encode with 12.2kbps as speech among the WCDMA, up code word can provide 98 users to insert a sub-district simultaneously at most; When speech coding speed was reduced to 7.95kbps, the number of users that sub-district can be inserted simultaneously just became 196.And the speech tonequality height that the speech of 12.2kbps coding is encoded than 7.95kbps, just quality of service is higher.
Streaming media service
The identical point of Streaming Media and conventional session class business is that requirement to time delay is than higher.Their difference is that Streaming Media is not the constant rate of speed business, and relatively more responsive to time delay and delay variation.Therefore, the maximum bandwidth of its requirement is usually greater than average bandwidth.The estimation equation of the equivalent bandwidth of streaming media service is as follows:
BW
Effective=TH
On average+ Φ * (TH
Maximum-TH
On average)
Wherein,
BW
EffectiveThe equivalent bandwidth that expression is professional
TH
On averageThe average bandwidth of expression business need
TH
MaximumThe maximum bandwidth of expression business need
Though the data rate of streaming media service has fluctuation, fluctuation is smaller comparatively speaking.The priority of choosing main consideration user of Φ value, professional priority and should business to the requirement of time delay.
Further explain the Φ value below with reference to Fig. 4.Fig. 4 has provided the professional equivalent bandwidth schematic diagram that data rate has fluctuation.Because data service rate self has sudden and fluctuation, if with the lower average bandwidth of business equivalent bandwidth as business, then as seen from Figure 4, most of the time, the data division (' peak ' among Fig. 4) that professional instant speed is higher than average bandwidth also can both be sent out in the short period of time (in ' peak ' next-door neighbour's ' paddy ').The saying of image is exactly that most of peak can both be filled out in paddy following closely, and as ' peak ' among Fig. 12,3,4, like this, service throughput requires and delay requirement can both be met.But just can not in time be transmitted for ' peak ' 1,5 wherein.Can see visually that from figure regional A is the data that can not in time be transmitted, and this part data is many, can not be held by area B.That is to say and in the short period of time the data that get clogged to be transmitted.The data that can not in time transmit may cause network congestion or be dropped.Thereby cause the re-transmission of upper-layer protocol, further increase system load and time delay, worsen systematic function.Hence one can see that, and the service selection more intense for fluctuation, that priority ratio is higher just can be avoided the problems referred to above than the professional higher value of average bandwidth as the equivalent bandwidth of business.
Can be clear that from Fig. 4,, make the position of equivalent bandwidth solid horizontal line in the figure if adjust the Φ value.Represented ' peak ' that solid line cut of professional equivalent bandwidth to be held by following closely ' paddy '.Can be clear that from Fig. 4 the regional A that gets clogged is reduced into zone C, also the D zone that just can be increased to by the B zone is held.Therefore, can the traffic affecting delay character by regulating Φ value (just regulating the distance of equivalent bandwidth and average bandwidth among Fig. 4).If distribute to professional bigger bandwidth, the error in data that the wireless channel burst error causes also can be retransmitted in the short period of time, offsets the influence that channel brings, thereby professional reliability also is improved.In brief, bigger bandwidth (being no more than maximum bandwidth) can provide higher reliability, the time delay of lacking and bigger throughput, just better quality of service.
Therefore, as can be known described above Fig. 4 reaches, can make system hold the user of different numbers by regulating the Φ value, professional certainly QoS also can be different.Come to provide the qos requirement that is complementary by the different equivalent bandwidth of user of giving different priorities for the user.
Interactive service
The kind of interactive service is many, traffic performance especially throughput and time delay require diversity ratio bigger.Generally the requirement to time delay does not have the so high of conversation class and Streaming Media class business.And the sudden and fluctuation of interactive service is than higher, will reduce the utilance of bandwidth resources if reserve more bandwidth resources for all interactive services, and can influence professional service quality such as the higher conversation class of priority level.Therefore, when calculating equivalent bandwidth, just may consider to distribute lower priority to interactive service.Therefore the equivalent bandwidth of interactive service can followingly be estimated equally:
BW
Effective=TH
On average+ Φ * (TH
Maximum-TH
On average)
Wherein,
BW
EffectiveThe equivalent bandwidth that expression is professional
TH
On averageThe average bandwidth of expression business need
TH
MaximumThe maximum bandwidth of expression business need
Interactive service to time delay require relatively low, the priority of choosing main consideration user of Φ value, professional priority and should business to the requirement of reliability.
Background service
Background service to time delay require minimum, therefore when network operation can according to wireless system resources how much come set several unified equivalent bandwidth R for background service
i, and come to be equivalent bandwidth of a certain specific background service selection according to the priority of business.
Priority in the following formula is to have taken all factors into consideration the result of the priority of user and business.
Describe the present invention in detail with an embodiment below.
Acceptance controlling method provided by the present invention is usually located at the base station controller part of access network part in mobile communication system.Base station controller is called as radio network controller (RNC) in the WCDMA system.Fig. 1 shows the position of base station controller in mobile communication system.As shown in Figure 1, carry out wireless telecommunications between subscriber terminal equipment 5,6,7 and the base station transmitter 4, base station controller 1 control base station transmitter 4, base station controller 1 is connected with network controller 2, and network controller 2 is connected with attaching position register 3.Whether base station controller 1 control subscriber terminal equipment 5,6,7 can connect with Access Network 8.
Fig. 2 illustrates the admittance control signaling process of mobile communication system mixed service of the present invention.At first the terminal use initiates the request connect to base station controller.After base station controller was received request, (HLR) connected with attaching position register, and this user's of acquisition request parameter comprises qos parameter and user's priority parameters.HLR returns this customer parameter to base station controller.The OoS requirement of the class of service that base station controller connects according to the user's that obtains priority and terminal use's request, the equivalent bandwidth that calculating need provide for this user.If system has enough bandwidth to satisfy professional demand,, and provide the service that QoS ensures then for this user connects; Otherwise will refuse this user's access request.
There are the bandwidth resources of 100KHz the sub-district of supposing a mobile communication system, and (to be not limited to be frequency resource to Radio Resource among the present invention, can be extended to time slot, these Radio Resources of power), the business that has inserted has taken the 30KHz bandwidth, residue 70KHz bandwidth resources.For the details of acceptance controlling method of the present invention can be described simply, the business that the new request of hypothesis here inserts has only Streaming Media, and to streaming media service, user's priority has only high, medium and low three kinds.Table 1 shows the parameter that system sets streaming media service, and wherein, choosing of Φ value also is simple hypothesis.
Table 1
| Class of service | Average bandwidth (Khz) | Maximum bandwidth (Khz) | User Priority | The Φ value | Equivalent bandwidth (Khz) |
| Streaming Media | 40 | 60 | High | 1 | 60 |
| In | 0.5 | 50 | |||
| Low | 0 | 40 |
According to the present invention, the wireless acceptance controlling method of mixed service is as follows in the mobile communication system:
A user A request is set up streaming media service and is connected, and user's the precedence information and the qos requirement of streaming media service send base station controller to simultaneously.Here during the priority of supposing user A is.Base station controller after the request of receiving and attaching position register communicate, during the priority of confirming user A is really.If the User Priority that priority that the user provides and attaching position register provide is not inconsistent, then the parameter that provides with attaching position register is as the criterion.
Base station controller is 50Khz according to the average bandwidth of the definite streaming media service of priority, the operator of user A and the equivalent bandwidth that maximum bandwidth is calculated to user A.
Base station controller determines that the remaining bandwidth resource of mobile communication system is 70Khz, and it is greater than the equivalent bandwidth 50Khz that needs distribute for user A, and then base station controller connects for user A, and provides the service that QoS ensures.
At this moment there is another user B request to set up Streaming Media and inserts, and inform that its priority of base station controller is low, passes to base station controller with the qos requirement of streaming media service simultaneously.Base station controller after the request of receiving and attaching position register communicate, confirm that the priority of user B is low really.
The equivalent bandwidth that base station controller determines to provide user B according to the average bandwidth of the priority of user B, streaming media service and maximum bandwidth is 40Khz.
Base station controller determines that new sub-district remaining bandwidth is 20Khz.
Base station controller is judged the equivalent bandwidth that remaining bandwidth distributes for user B less than needs.
Base station controller is refused to connect to user B.
The foregoing description has only provided the application of the present invention in mobile communication system, but the present invention is not limited to be applied to mobile communication system, also can be applied to wireless communication system, as the WCDMA system.
Claims (13)
1. the acceptance controlling method of a wireless communication system mixed service is used for the Radio Access Network part, it is characterized in that,
Determine the qos requirement of user applies access service according to user's call request;
Obtain user's priority;
Determine the equivalent bandwidth that this is professional according to user's the priority and the qos requirement of user applies access service;
Determine the resource that wireless communication system can provide;
Judge that resource that wireless communication system can provide is whether greater than the equivalent bandwidth of user applies access service, the resource that can provide when wireless communication system is during greater than the equivalent bandwidth of user applies access service, agree that then this user inserts, the inadequate resource that can provide when wireless communication system is then refused this user and is inserted when satisfying the equivalent bandwidth demand of user applies access service.
2. acceptance controlling method according to claim 1 is characterized in that, the qos requirement of described business comprises professional own priority, reliability, time delay and throughput.
3. acceptance controlling method according to claim 1 is characterized in that user's priority is provided by the user, but the User Priority that priority that provides as the user and wireless communication system provide is not when being inconsistent, and the parameter that provides with wireless communication system is as the criterion.
4. according to claim 1 or 2 or 3 described acceptance controlling methods, it is characterized in that, when surplus resources is not enough to satisfy the user's that a plurality of applications simultaneously insert demand, then press the access of User Priority order.
5. acceptance controlling method according to claim 1 is characterized in that, when the business of user applies access was the conventional session business, described equivalent bandwidth was estimated by following formula:
BW
Effective=TH
On average+ Φ * (TH
Maximum-TH
On average)
Wherein,
BW
EffectiveThe equivalent bandwidth that expression is professional;
TH
On averageThe average bandwidth of representing this business need;
TH
MaximumThe maximum bandwidth of representing this business need;
The Φ value is that the priority according to the user, professional qos requirement determine that span is from 0 to 1.
6, acceptance controlling method according to claim 5 is characterized in that, according to the adaptive multi-rate coding of speech, is average bandwidth with the speech minimum speed limit required definitions of bandwidth of encoding, and required definitions of bandwidth is a maximum bandwidth and flank speed is encoded.
7, acceptance controlling method according to claim 1 is characterized in that, when the business of user applies access was streaming media service, described equivalent bandwidth was estimated by following formula:
BW
Effective=TH
On average+ Φ * (TH
Maximum-TH
On average)
Wherein,
BW
EffectiveThe equivalent bandwidth that expression is professional;
TH
On averageThe average bandwidth of representing this business need;
TH
MaximumThe maximum bandwidth of representing this business need;
The Φ value is chosen according to user's the priority and the qos requirement of user applies access service, span from 0 to 1.
According to described acceptance controlling method one of among the claim 5-7, it is characterized in that 8, professional qos requirement is only considered professional priority, delay requirement.
9, acceptance controlling method according to claim 1 is characterized in that, when the business that user applies inserts was interactive service, described equivalent bandwidth was estimated by following formula:
BW
Effective=TH
On average+ Φ * (TH
Maximum-TH
On average)
Wherein,
BW
EffectiveThe equivalent bandwidth that expression is professional;
TH
On averageThe average bandwidth of representing this business need;
TH
MaximumThe maximum bandwidth of representing this business need;
The Φ value is chosen according to user's the priority and the qos requirement of user applies access service, span from 0 to 1.
10, acceptance controlling method according to claim 9 is characterized in that, professional qos requirement is only considered professional priority, reliability requirement.
11, according to described acceptance controlling method one of in claim 5-7 and 9, it is characterized in that described average bandwidth, maximum bandwidth and Φ value are decided by operator.
12, according to claim 7 or 9 described acceptance controlling methods, it is characterized in that, from described business, choose one section typical data source repeat playing, the size of dynamic adjustments bandwidth, add up time delay, the error rate, the packet loss a series of indexs of receiving terminal under different transmission bandwidth situations then, perhaps directly by the quality of people's subjective determination business, the bandwidth of the receptible professional lowest quality correspondence of user is taken as average bandwidth; After bandwidth increased to certain value, when continuation increase bandwidth can not significantly increase professional quality, this bandwidth was taken as this professional maximum bandwidth.
13. acceptance controlling method according to claim 1 is characterized in that, when the business that inserts when user applies is background service, what of Radio Resource to set several equivalent bandwidth R for background service according to when network operation
i, priority and professional these qos parameters of priority according to the user are that a certain background service is selected an equivalent bandwidth from the equivalent bandwidth that sets then.
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