CN100574500C - Guarantee the device and method of quality of real-time service in a kind of mobile communication system - Google Patents

Abstract

The present invention relates to guarantee in a kind of mobile communication system the method and the device of quality of real-time service, based on Node B in the mobile communication system to the measurement of real time business air interface actual conditions and on offer realization, described method is characterised in that, comprise: step 101, measure the actual conditions of described real time business air interface; Step 102, the actual conditions adjustment of the real time business air interface of measuring according to described step 101 is distributed to described real time business user's transmitting power or described real time business is carried out channel transfer to guarantee the service quality of described real time business.Utilize method of the present invention and device, make HSDPA when high as far as possible power system capacity is provided for the WCDMA system, can ensure for real time business provide better QoS.

Description

Guarantee the device and method of quality of real-time service in a kind of mobile communication system

Technical field

The present invention relates to the devices and methods therefor of the assurance quality of real-time service (QoS) in a kind of Wideband Code Division Multiple Access (WCDMA) (WCDMA) mobile communication system, the measurement based on Node B of the particularly a kind of WCDMA of being directed to system's high speed downlink grouped access (HSDPA) reports the apparatus and method that guarantee real time business QoS.

Background technology

With respect to 3GPP Release 99 versions, 3GPP Release 5 has increased medium access control-high speed downlink packet and has inserted entity (MAC-hs on base station (Node B); MAC-HSDPA).The packet scheduler of HSDPA is realized in MAC-hs.When supporting to require to guarantee the business (such as the media stream business that generally is real time business) of bit rate, one of its problem is that present radio network controller (RNC) is only professional service quality (QoS) the target notice MAC-hs of stream, whether can meet the demands for the channel condition of user equipment (UE) and to be not very clear, information for UE channel quality and scheduling frequency etc. is grasped not enough, therefore under the unwarrantable situation of QoS, can't make timely and adjusting.

Because the assurance bit rate of real time business scarcely is very high for the ability of HSDPA, having under the situation of a lot of real time business, some user's channel condition is good, and required power resource is less relatively, and the weaker user of channel condition then needs the more power resource.But when Radio Link is set up, by power offset parameter of each user of RNC dispensing, this parameter so just can't be with power equalization not according to the variation of quality of wireless channel and instant the change, each takes what he needs to make the real time business user, has power dissipation and under powered contradiction.When the serious scarcity of system resource, system also can't accurately judge it, partial service can't be moved to dedicated channel, the user diversity effect of HSDPA can not be not fully exerted, thereby can't maximized system capacity and guarantee the QoS of more real time business.

Summary of the invention

Technical problem to be solved by this invention is to provide the device and method that guarantees quality of real-time service in a kind of mobile communication system that measurement reports based on Node B, be assigned to the transmitting power of real time business subscriber channel or the channel of business is moved with actual conditions adjustment according to the real time business air interface, thereby can make the HSDPA system for when high system throughput is provided, guarantee the QoS of real time business.

To achieve these goals, the invention provides the method that guarantees quality of real-time service in a kind of mobile communication system, realize, wherein, comprising based on the base station in the mobile communication system:

Step 101 is measured the actual conditions of described real time business air interface;

Step 102, the actual conditions adjustment of the real time business air interface of measuring according to described step 101 is distributed to described real time business user's transmitting power or described real time business is carried out channel transfer to guarantee the service quality of described real time business.

Described method, wherein, described step 101 further comprises scheduling frequency, average channel quality indication, the assurance quality of real-time service power demand of measuring described real time business, the step that reaches the actual average bit rate; Described step 102 further comprises the step that calculate to guarantee relative scheduling frequency that bit rate is required and required absolute scheduling times thresholding.

Described method, wherein, described measurement guarantees that the step of quality of real-time service power demand further comprises:

Step 301 is calculated the throughput of the required transmission of assurance bit rate according to the scheduling frequency of the described real time business of measuring;

Step 302 obtains needed channel condition indication according to described throughput from predefined map table;

Step 303, determine described assurance quality of real-time service power demand according to described channel condition indication according to following formula:

${\mathrm{Power}}_{\mathrm{required}}={10}^{\mathrm{\α}*({\mathrm{CQI}}_{\mathrm{req}}-{\mathrm{CQI}}_{\mathrm{avg}})/10}*{\mathrm{Power}}_{\mathrm{real}}$

Wherein, Power _RequiredRepresent described assurance quality of real-time service power demand; Power _RealRepresent current actual emission power; CQI _ReqRepresent required channel condition indication; CQI _AvgExpression interior average channel quality measuring period; α represents weight, is a fixed constant.

Described method, wherein, described calculating guarantees that the step of the required relative scheduling frequency of bit rate further comprises:

Step 401 according to user's the ability level and the average channel quality indication of measurement, is calculated the bit rate that average maximum provides;

Step 402, the required relative scheduling frequency of described assurance bit rate is for guaranteeing the ratio of the bit rate that bit rate and described average maximum provide.

Described method, wherein, the required absolute scheduling times thresholding of described assurance bit rate is to calculate according to described average channel quality indication and user's ability level to obtain.

Described method, wherein, described step 102 further comprises:

Step 601 is judged when the current channel condition of described real time business can satisfy requiring of assurance bit rate, judges that further whether described actual average bit rate is more than or equal to described assurance bit rate; In this way, then reduce power to current channel allocation and process ends according to described assurance bit rate power demand; As not, then change step 602 over to;

Step 602 judges whether described actual average bit rate is higher than the speed threshold value; In this way, change step 603 over to; As not, then this business is switched on the dedicated channel, and process ends;

Step 603 judges further whether described actual schedule frequency is lower than the required absolute scheduling times thresholding of described assurance bit rate and is higher than the channel handoff threshold; In this way, then improve the power measurement offset parameter to reduce required scheduling frequency, process ends according to the required power of described assurance bit rate; As not, then further judge whether described actual schedule frequency is lower than the required absolute scheduling times thresholding of described assurance bit rate and is lower than the channel handoff threshold; In this way, then described real time business is switched on the dedicated channel, and process ends.

Described method, wherein, described step 102 further comprises: judge that current channel condition can not satisfy when guaranteeing the requiring of bit rate, judge that further whether described assurance bit rate power demand give the power of channel greater than actual allocated and be lower than the step of channel handoff threshold; In this way, then improve the power measurement offset parameter; As not, then this business is switched on the dedicated channel process ends.

Described method, wherein, when the required relative scheduling frequency of described assurance bit rate smaller or equal to 1 the time, described current channel condition can satisfy the requirement that guarantees bit rate; When described relative scheduling frequency greater than 1 the time, described current channel condition cannot satisfy the requirement that guarantees bit rate.

The present invention also provides a kind of access device that guarantees quality of real-time service in mobile communication system, comprises interconnected radio network controller and base station, wherein, also comprises:

Measuring unit is arranged on the described base station, is used to measure the actual conditions of described real time business air interface;

Control unit, be arranged on described base station or the radio network controller, the actual conditions adjustment that is used for the real time business air interface measured according to described reception is distributed to described real time business user's transmitting power or described real time business is carried out channel transfer to guarantee the service quality of described real time business.

Described device, wherein, the actual conditions of the described real time business air interface of described measuring unit measurement specifically comprise: the scheduling frequency of real time business, average channel quality are indicated, are guaranteed the quality of real-time service power demand, reach the actual average bit rate.

Described device, wherein, described control unit further comprises:

Scheduling frequency computing module is used for calculating the required relative scheduling frequency of assurance bit rate according to user's the ability level and the average channel quality indication of measurement relatively;

Absolute scheduling times thresholding computing module is used for calculating the required absolute scheduling times thresholding of described assurance bit rate according to described average channel quality indication and user's ability level.

Described device, wherein, described measuring unit further comprises:

Guarantee the computing module of the throughput of the required transmission of bit rate, be used for calculating the throughput that guarantees the required transmission of bit rate according to the scheduling frequency of the described real time business of measuring;

The computing module of required channel condition indication obtains needed channel condition indication according to described throughput from predefined map table;

Guarantee the computing module of quality of real-time service power demand, be used for determining described assurance quality of real-time service power demand according to following formula according to described channel condition indication:

${\mathrm{Power}}_{\mathrm{required}}={10}^{\mathrm{\α}*({\mathrm{CQI}}_{\mathrm{req}}-{\mathrm{CQI}}_{\mathrm{avg}})/10}*{\mathrm{Power}}_{\mathrm{real}}$

Wherein, Power _RequiredRepresent described assurance quality of real-time service power demand; Power _RealRepresent current actual emission power; CQI _ReqRepresent required channel condition indication; CQI _AvgExpression interior average channel quality measuring period; α represents weight, is a fixed constant.

Described device, wherein, the packet scheduler that the medium access control on described measuring unit and the described base station-high speed downlink packet inserts entity is connected.

Utilize method of the present invention and device, make HSDPA when high as far as possible power system capacity is provided for the WCDMA system, can ensure for real time business provide better QoS.

Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.

Description of drawings

Fig. 1 is the composition schematic block diagram of one embodiment of the invention device;

Fig. 2 is the schematic flow sheet of one embodiment of the invention method.

Embodiment

The requirement that the channel quality that real time business QoS can not guaranteed main cause one is the user does not reach guaranteed qos, the 2nd, though when user's channel quality enough good because the scarcity of resource and can not being dispatched fully, thereby cause the decline of QoS.If system can utilize these information to the power division parameter, channel allocation is done instant flexible adjustment, makes system resource be able to sufficient utilization, so not only can guarantee the QoS of real time business, and can make the power system capacity maximization.The objective of the invention is to, we wish HSDPA when high as far as possible power system capacity is provided for the WCDMA system, can ensure for real time business provide better QoS.

The present invention proposes and a kind ofly measure and report based on Node B, RNC in time makes parameter adjustment to guarantee real time business QoS and the device of high data rate is provided, Fig. 1 is the composition schematic block diagram of one embodiment of the invention device, wherein the interface between base station node B 1 and the radio network controller (RNC) 4 is an Iub interface, Node B 1 is connected with user equipment (UE) 6 by air interface Uu, and Node B 1 is provided with medium access control-high speed downlink packet and inserts entity (MAC-hs; MAC-HSDPA), the packet scheduler of HSDPA is realized in MAC-hs.As shown in Figure 1, the device of one embodiment of the invention comprises: be arranged on the measuring unit 2 on the base station (Node B) 1, be used for real time scheduling of traffic frequency in measuring period, the average channel quality indication, guaranteed qos power demand and actual average bit rate are measured, so that RNC understands the actual conditions of real time business air interface, measuring unit 2 wherein is connected with MAC-hs scheduler 3; Control unit 5, be used for the parameter that measuring unit 2 is provided is carried out Treatment Analysis, calculate relative scheduling frequency and required absolute scheduling times thresholding by relative scheduling frequency computing module and the required absolute scheduling times thresholding computing module that is provided with in it, so that make corresponding judgment and parameter adjustment, adjustment is distributed to each real time business user's transmitting power or is carried out channel migration, to guarantee the QoS of real time business.

The measurement of the guaranteed qos power demand parameter in the measuring unit 2 is determined in the following manner: calculate the throughput that guarantees the required transmission of GBR according to the scheduling frequency, and from corresponding map table, obtains the indication of needed channel condition by throughput, indicate according to required channel condition again and extrapolate the guaranteed qos power demand.

The method of measurement of guaranteed qos power demand parameter is based on following formula and determines:

${\mathrm{Power}}_{\mathrm{required}}={10}^{\mathrm{\α}*({\mathrm{CQI}}_{\mathrm{req}}-{\mathrm{CQI}}_{\mathrm{avg}})/10}*{\mathrm{Power}}_{\mathrm{real}}$

Wherein, Power _RealRepresent current actual emission power, CQI _ReqRepresent required channel condition indication, CQI _AvgExpression interior average channel quality measuring period, α represents weight.α is a fixed constant.

In the control unit, guarantee that the required relative scheduling frequency of GBR is definite in the following manner: indicate the ability level that reaches the user who informs by high-level signaling according to the average channel quality of measuring, calculate the bit rate that average maximum provides.Satisfy the required relative scheduling frequency of GBR then for guaranteeing the ratio of the bit rate that bit rate and average maximum provide.

In the control unit, guarantee that the required absolute scheduling times thresholding of GBR is definite in the following manner:, obtain in measuring period, to guarantee the required absolute scheduling times thresholding of GBR according to existing known method according to average channel quality indication and user's ability level.

The method of one embodiment of the invention may further comprise the steps:

Step 1, judge whether current channel condition might satisfy the requirement of guaranteed qos.If then enter step 2, otherwise turn to step 5;

Step 2, judge that mean bitrate is whether more than or equal to guaranteeing bit rate.If then require required its power that is distributed of power reduction, otherwise carry out next step judgement according to guaranteed qos;

Step 3, judge whether the actual average bit rate is higher than threshold value.If, then by following a, b, three steps of c are carried out, otherwise directly enter step 4;

When step a actual schedule frequency is lower than the required absolute scheduling times thresholding of guaranteed qos and is higher than handoff threshold, require required power suitably to improve the power measurement offset parameter according to guaranteed qos, thereby reduce required scheduling frequency, to guarantee professional QoS;

When step b actual schedule frequency is lower than the required absolute scheduling times thresholding of guaranteed qos and is lower than handoff threshold, then this business is switched on the dedicated channel;

Step c process ends;

Step 4, actual average bit rate are lower than threshold value, promptly are significantly less than when guaranteeing bit rate, then this business is switched on the dedicated channel, and process ends;

When step 5, current channel condition can not satisfy GBR and require, require required power if, then suitably improve the power measurement offset parameter greater than the power of actual allocated and when being lower than threshold value according to guaranteed qos.Otherwise, then this business is switched on the dedicated channel process ends.

The parameter regulation means that the present invention proposes is carried out in RNC, also can carry out in MAC-hs.

Fig. 2 shows the schematic flow sheet of one embodiment of the invention method, will be described in further detail technical scheme preferred embodiment of the present invention below in conjunction with accompanying drawing.

Below be specific embodiments of the invention:

The subscriber channel condition is had nothing in common with each other, and requires a lot of situation of number of users of guaranteed qos.

Step 201, base station in measuring period (100ms) to the scheduling frequency of each real time business, average channel quality indication (CQI), radio network controller is measured and reported to guaranteed qos power demand and the actual mean bitrate that provides;

Step 202,203, according to the average channel quality information of measuring, user's ability level calculates and guarantees required relative scheduling frequency frelative of GBR (assurance bit rate) and the required absolute scheduling times thresholding fthreshold of assurance GBR;

Step 204 judges that whether the scheduling frequency is smaller or equal to 1 relatively; In this way, change step 205 over to,, then change step 211 over to as not;

Step 205, when relative scheduling frequency smaller or equal to 1 the time, illustrate that the precondition of guaranteed qos possesses, judge further then whether the actual bit rate that provides reaches requirement and judge that promptly whether the actual mean bitrate that provides is more than or equal to the assurance bit rate; In this way, change step 206 over to; As not, change step 207 over to, carry out next step judgement;

Step 206 in this way, then requires required power suitably to reduce power offset factor to reduce the power that it is distributed according to guaranteed qos, so that distribute to other user, and enters step 215, process ends;

Step 207 is judged whether the actual average bit rate is higher than speed threshold value (this threshold value is for guaranteeing the certain proportion of bit rate value), as is reached the assurance bit rate more than 60%; In this way, then change step 208 over to, and judge further whether the actual schedule frequency satisfies simultaneously and be lower than the required absolute scheduling times thresholding of guaranteed qos and be higher than the channel handoff threshold, otherwise,, promptly be significantly less than when guaranteeing bit rate when the actual average bit rate is lower than threshold value, as less than 60% assurance bit rate, then explanation scheduling extremely lacks, and changes step 210 over to, with business migration to dedicated channel DCH;

Step 209, when the actual schedule frequency is lower than the required absolute scheduling times thresholding of guaranteed qos and is higher than the channel handoff threshold, require required power suitably to improve the power measurement offset parameter according to guaranteed qos, thereby reduce required scheduling frequency, guaranteeing professional QoS, and process ends; When the actual schedule frequency is lower than the required absolute scheduling times thresholding of guaranteed qos and is lower than the channel handoff threshold, change step 210 over to;

Step 210 switches to this business migration on the dedicated channel DCH, and process ends;

Step 211, whether when relative scheduling frequency does not satisfy smaller or equal to 1 the time, promptly current channel condition can not satisfy when GBR requires and further judge, require required power greater than the power of actual allocated and be lower than channel handoff threshold value according to guaranteed qos; In this way, then changing step 212 over to, suitably improve the power measurement offset parameter, is 120% o'clock of actual allocated power as power demand, can suitably improve the power measurement offset parameter; As not, then change step 213 over to, judge further whether power demand is higher than the channel handoff threshold; In this way, the power resource scarcity is described then, changes step 214 over to, with business migration on dedicated channel, and process ends; As not, then change step 212 over to, suitably improve the power measurement offset parameter, execution in step 215, process ends.

Provided by the present invention a kind of measurement reports and the device and method immediately parameter adjusted can make the HSDPA system for when high system throughput is provided based on Node B, guarantees the QoS of real time business.By the method, can equal power between the good user of the user of bad channel conditions and channel condition, each takes what he needs to make it, thereby avoided power dissipation, provides QoS assurance for more real time business simultaneously.

Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Claims (9)

1, guarantee the method for quality of real-time service in a kind of mobile communication system, realize, it is characterized in that, comprising based on the base station in the mobile communication system:

Step 101 is measured the actual conditions of described real time business air interface;

Step 102, the actual conditions adjustment of the real time business air interface of measuring according to described step 101 is distributed to described real time business user's transmitting power or described real time business is carried out channel transfer to guarantee the service quality of described real time business;

Described step 101 further comprises scheduling frequency, average channel quality indication, the assurance quality of real-time service power demand of measuring described real time business, the step that reaches the actual average bit rate; Described step 102 further comprises the step that calculate to guarantee relative scheduling frequency that bit rate is required and required absolute scheduling times thresholding;

Described step 102 specifically comprises the steps:

Steps A, judge whether current channel condition might satisfy the requirement of guaranteed qos; If then enter step B, otherwise turn to step e;

Step B, judge that the actual average bit rate is whether more than or equal to guaranteeing bit rate; If then require required its power that is distributed of power reduction, otherwise carry out next step judgement according to guaranteed qos;

Step C, judge whether the actual average bit rate is higher than threshold value; If, then by following a, b, three steps of c are carried out, otherwise directly enter step D;

When step a actual schedule frequency is lower than the required absolute scheduling times thresholding of guaranteed qos and is higher than handoff threshold, require required power suitably to improve the power measurement offset parameter according to guaranteed qos, thereby reduce required scheduling frequency, to guarantee professional QoS;

Step b actual schedule frequency is lower than the required absolute scheduling times thresholding of guaranteed qos and is lower than the switching door, in limited time, then this business is switched on the dedicated channel;

Step c process ends;

Step D, actual average bit rate are lower than threshold value, promptly are significantly less than when guaranteeing bit rate, then this business is switched on the dedicated channel, and process ends;

When step e, current channel condition can not satisfy GBR and require, require required power if, then suitably improve the power measurement offset parameter greater than the power of actual allocated and when being lower than threshold value according to guaranteed qos; Otherwise, then this business is switched on the dedicated channel process ends.

2, method according to claim 1 is characterized in that, described measurement guarantees that the step of quality of real-time service power demand further comprises:

Step 301 is calculated the throughput of the required transmission of assurance bit rate according to the scheduling frequency of the described real time business of measuring;

Step 302 obtains needed channel condition indication according to described throughput from predefined map table;

Step 303, determine described assurance quality of real-time service power demand according to described channel condition indication according to following formula:

${\mathrm{Power}}_{\mathrm{required}}={10}^{\mathrm{\α}*({\mathrm{CQI}}_{\mathrm{req}}-{\mathrm{CQI}}_{\mathrm{avg}})/10}*{\mathrm{Power}}_{\mathrm{real}}$

Wherein, Power _RequiredRepresent described assurance quality of real-time service power demand; Power _RealRepresent current actual emission power; CQI _ReqRepresent required channel condition indication; CQI _AvgThe indication of expression average channel quality; α represents weight, is a fixed constant.

3, method according to claim 1 and 2 is characterized in that, described calculating guarantees that the step of the required relative scheduling frequency of bit rate further comprises:

Step 401 according to user's the ability level and the average channel quality indication of measurement, is calculated the bit rate that average maximum provides;

Step 402, the required relative scheduling frequency of described assurance bit rate is for guaranteeing the ratio of the bit rate that bit rate and described average maximum provide.

4, method according to claim 1 is characterized in that, the required absolute scheduling times thresholding of described assurance bit rate is to calculate according to described average channel quality indication and user's ability level to obtain.

5, method according to claim 1 is characterized in that, when the required relative scheduling frequency of described assurance bit rate smaller or equal to 1 the time, described current channel condition can satisfy the requirement that guarantees bit rate; When the required relative scheduling frequency of described assurance bit rate greater than 1 the time, described current channel condition can not satisfy the requirement that guarantees bit rate.

6, a kind of device that utilizes claim 1,2,4 or 5 described methods to guarantee quality of real-time service in mobile communication system comprises interconnected radio network controller and base station, it is characterized in that, also comprises:

Measuring unit is arranged on the described base station, is used to measure the actual conditions of described real time business air interface;

Control unit, be arranged on described base station or the radio network controller, be used for distributing to described real time business user's transmitting power or described real time business being carried out channel transfer to guarantee the service quality of described real time business according to the actual conditions adjustment of the described real time business air interface of measuring;

The actual conditions of the described real time business air interface that described measuring unit is measured specifically comprise: the scheduling frequency of real time business, average channel quality are indicated, are guaranteed the quality of real-time service power demand, reach the actual average bit rate;

Described control unit is used for distributing to described real time business user's transmitting power or described real time business being carried out channel transfer according to the actual conditions adjustment of the described real time business air interface of measuring specifically comprising with the service quality that guarantees described real time business:

Steps A, judge whether current channel condition might satisfy the requirement of guaranteed qos; If then enter step B, otherwise turn to step e;

Step B, judge that the actual average bit rate is whether more than or equal to guaranteeing bit rate; If then require required its power that is distributed of power reduction, otherwise carry out next step judgement according to guaranteed qos;

Step C, judge whether the actual average bit rate is higher than threshold value; If, then by following a, b, three steps of c are carried out, otherwise directly enter step D;

When step a actual schedule frequency is lower than the required absolute scheduling times thresholding of guaranteed qos and is higher than handoff threshold, require required power suitably to improve the power measurement offset parameter according to guaranteed qos, thereby reduce required scheduling frequency, to guarantee professional QoS;

When step b actual schedule frequency is lower than the required absolute scheduling times thresholding of guaranteed qos and is lower than handoff threshold, then this business is switched on the dedicated channel;

Step c process ends;

Step D, actual average bit rate are lower than threshold value, promptly are significantly less than when guaranteeing bit rate, then this business is switched on the dedicated channel, and process ends;

When step e, current channel condition can not satisfy GBR and require, require required power if, then suitably improve the power measurement offset parameter greater than the power of actual allocated and when being lower than threshold value according to guaranteed qos; Otherwise, then this business is switched on the dedicated channel process ends.

7, device according to claim 6 is characterized in that, described control unit further comprises:

Scheduling frequency computing module is used for calculating the required relative scheduling frequency of assurance bit rate according to user's the ability level and the average channel quality indication of measurement relatively;

Absolute scheduling times thresholding computing module is used for calculating the required absolute scheduling times thresholding of described assurance bit rate according to described average channel quality indication and user's ability level.

8, according to claim 6 or 7 described devices, it is characterized in that described measuring unit further comprises:

Guarantee the computing module of the throughput of the required transmission of bit rate, be used for calculating the throughput that guarantees the required transmission of bit rate according to the scheduling frequency of the described real time business of measuring;

The computing module of required channel condition indication obtains needed channel condition indication according to described throughput from predefined map table;

Guarantee the computing module of quality of real-time service power demand, be used for determining described assurance quality of real-time service power demand according to following formula according to described channel condition indication:

${\mathrm{Power}}_{\mathrm{required}}={10}^{\mathrm{\α}*({\mathrm{CQI}}_{\mathrm{req}}-{\mathrm{CQI}}_{\mathrm{avg}})/10}*{\mathrm{Power}}_{\mathrm{real}}$

Wherein, Power _RequiredRepresent described assurance quality of real-time service power demand; Power _RealRepresent current actual emission power; CQI _ReqRepresent required channel condition indication; CQI _AvgThe indication of expression average channel quality; α represents weight, is a fixed constant.

9, device according to claim 8 is characterized in that, the packet scheduler that the medium access control on described measuring unit and the described base station-high speed downlink packet inserts entity is connected.

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