CN101005689A - Setting method for dispatching priority node of customer terminal and base station - Google Patents

Abstract

The method is used to optimize system performance and promote throughput of cell. It comprise: the base station node monitors the transmission rate, the uplink power and/or the uplink N/S ratio of user end, and according to the ratio of the transmission rate to the uplink power and/or uplink N/S ratio, sets the schedule priority of the user end.

Description

The method to set up of the dispatching priority of user terminal and base-station node

Technical field

The present invention relates to moving communicating field, particularly the technology that is provided with of the dispatching priority of user terminal.

Background technology

Third generation partner program (3rd Generation Partnership Project, be called for short " 3GPP ") promoted the standardization effort of 3G technology as the vital tissue of moving communicating field, the carrying of uplink and downlink business all is based on dedicated channel in its early stage protocol version, wherein, the message transmission rate that uplink and downlink can reach in 99 editions (Release 99, are called for short " R99 ") is 384 kilobits per seconds (Kbps).

Along with the development of mobile communication technology, 3G technology is also in constantly development evolution.Manyly need system that higher transmission rate and shorter time delay are provided to flow and data service such as video, Streaming Media and the download etc. of delaying having relatively high expectations, high speed downlink packet inserts (High Speed Downlink Packet Access, be called for short " HSDPA ") and high speed uplink packet to insert (High Speed Uplink Packet Access, abbreviation " HSUPA ") be exactly the important evolution of 3G technology.Be different from the scheduling of packet in the R99 version and retransmit by radio network controller (Radio Network Controller, be called for short " RNC ") control, among HSDPA and the HSUPA, the scheduling of packet and re-transmission etc. are controlled by base-station node (NodeB), this control faster better adaptive channel changes, reduce propagation delay time, increase data throughout.HSDPA and HSUPA can provide the peak rate up to 14.4 MBPSs (Mbps) and 5.76Mbps respectively, and the availability of frequency spectrum also is greatly improved.

HSDPA was introduced in 2002 in the version of 3GPP the 5th edition (Release 5, are called for short " R5 ") as down high-speed data bag access technology.HSDPA adopts shorter Transmission Time Interval (Transmission Timing Interval, be called for short " TTI ") and frame length (2ms or 10ms) to realize quick self-adapted control, use adaptive coding and modulation (Adaptive Modulationand Coding in physical layer, be called for short " AMC ") and mix automatic repeat requests (Hybrid Auto Repeat reQuest, be called for short " HARQ "), introduce 16 rank quadrature amplitude modulations (Quadrature Amplitude Modulation is called for short " QAM ") modulation and improve the availability of frequency spectrum.Among the HSDPA, the HARQ technology adopts multi-process, uses stop-and-wait protocol (Stop And Wait is called for short " SAW "), and user terminal feeds back the ACK/NACK indication whether designation data correctly receives after receiving data, so that the NodeB decision retransmits or the transmission new data.The descending channel quality indication (ChannelQuality Indicator is called for short " CQI ") that AMC specification requirement user terminal feedback measures is so that NodeB determines the code rate and the transformat of descending HSDPA data.

After HSDPA, HSUPA has been incorporated in 2004 in the version of 3GPP the 6th edition (Release 6, are called for short " R6 ") as the high speed uplink data packet access technique.Be similar to HSDPA, HSUPA adopts shorter TTI and frame length (2ms or 10ms) to realize quick self-adapted control, uses HARQ and based on the fast uplink dispatching technique of NodeB, has improved up spectrum efficiency.

In order to realize the high-efficiency transfer of user uplink data, HSUPA has increased two uplink physical channels and three down physical channels newly, they are respectively up enhancing dedicated data transmission channel (the Enhanced-DCH Dedicated Physical Data Channel that is used for carrying user data, be called for short " E-DPDCH "), be used to transmit accompanied by physical layer signaling, for the E-DPDCH demodulation provides the up enhancing Dedicated Control Channel of following signaling (Enhanced-DCH Dedicated Physical Control Channel, be called for short " E-DPCCH "), be used to control absolute grant channel (the Enhanced-DCH Absolute Grant Channel of user's uplink speed, be called for short " E-AGCH ") and relative authorization channel (Enhanced-DCH Relative Grant Channel, be called for short " E-RGCH "), and be used to indicate the whether correct retransmission indicating chanel (E-DCH Hybrid ARQ Indicator Channel is called for short " E-HICH ") of up process data transmission.

Wherein, user terminal sends up E-DCH data by E-DPDCH, NodeB receives this channel according to the control signaling and the data block that receives is confirmed, produce ACK/NACK information, and directly give user terminal with this feedback information by descending E-HICH channel, user terminal knows by receiving E-HICH whether data are correctly received, if correctly do not received, then initiate to retransmit, otherwise send new data.Confirm again to reduce the affirmation time delay of data through RNC thereby changed original elder generation, improve the efficiency of transmission of eating dishes without rice or wine by sending the mode of TB confirmation.

On the other hand, HSUPA also adopts media interviews control (Medium Access Control is called for short " MAC ")-e (e refers to strengthen) dispatching technique, distributes the maximum of adjusting each user can send mandate fast by NodeB.Comprise that can send mandate by E-AGCH and/or E-RGCH to user's maximum controls.Wherein, E-AGCH only exists in service wireless connections sub-district, is used to the peak transfer rate of indicating user uplink to transmit, and the frequency ratio of adjusting is lower; E-RGCH can exist in service wireless connections and non-service wireless connections sub-district, is used to indicate the user to adjust uplink speed by a fixed step size, and the frequency ratio of adjustment is higher, reaches as high as every TTI once.Carrying out MAC-e scheduling by NodeB can be with the situation of change of ascending load of cell feedback and with this guides user authorized appropriation fast, thereby realizes that better ascending resource is shared between the user.

Existing MAC-e resource regulating method is determined the dispatching priority of user terminal mainly according to the uplink signal-channel quality of user terminal, is its distributing system resource according to the height of user's dispatching priority.Be uplink signal-channel quality preferably user terminal distribute higher dispatching priority, and be that the high user terminal of priority distributes more system resources according to the dispatching priority that is distributed.Make the high user terminal of uplink signal-channel quality (promptly more can make full use of the user terminal of gained resource) can access more system resource, thereby optimization system resource allocation, improve user's available physical channel capacity limitation ability, make system obtain maximum throughput rate.

In actual applications, such scheme exists following problem: NodeB according to the set dispatching priority distributing system resource of prior art, can't reach the effect of optimization system, raising throughput well.

Cause the main cause of this situation to be, the MAC-e resource regulating method is mainly according to the dispatching priority distributing system resource of user terminal, wherein, the dispatching priority of user terminal is by its uplink signal-channel quality decision, because there is no fixed standard in and algorithm for the quality of uplink signal-channel quality in the prior art, make and when scheduling of user terminals priority is set, can not get sufficient foundation, may there be irrational phenomenon in being provided with of dispatching priority, thereby, can't reach optimization system well according to the set dispatching priority distributing system resource of prior art, improve the effect of throughput.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of method to set up and base-station node of dispatching priority of user terminal, makes systematic function optimized, and the sub-district throughput is improved.

For achieving the above object, the invention provides a kind of method to set up of dispatching priority of user terminal, comprise following steps:

The transmission rate of base-station node monitor user ' terminal and ascending power and/or up signal to noise ratio, and the dispatching priority that this user terminal is set according to the ratio and/or the up signal to noise ratio of transmission rate that records and ascending power.

Wherein, when described base-station node only is provided with described dispatching priority according to the ratio of described transmission rate and described ascending power, described dispatching priority is set by following formula:

${\mathrm{USER}}_{\mathrm{pri}}^i=g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)$

Wherein, USER _Pri ⁱBe the dispatching priority of i user terminal, USER _Pri ⁱValue big more, the dispatching priority of this user terminal is high more, A _Avg ⁱBe the transmission rate of i user terminal and the mean ratio of ascending power, A _Cur ⁱBe the current transmission rate of i user terminal and the ratio of ascending power, $g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)$ For $\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}$ Nondecreasing function.

A _Avg ⁱBy 1 rank αLv Boqi: $A_{\mathrm{avg}}^i={\mathrm{\αA}}_{\mathrm{cur}}^i+(1-\mathrm{\α})A_{\mathrm{avg}}^i$ Obtain, wherein, 0＜α＜1.When described base-station node only is provided with described dispatching priority according to described up signal to noise ratio, described dispatching priority is set by following formula:

${\mathrm{USER}}_{\mathrm{pri}}^i=h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$

Wherein, USER _Pri ⁱBe the dispatching priority of i user terminal, USER _Pri ⁱValue big more, the dispatching priority of this user terminal is high more, SIR _Avg ⁱBe the mean value of the up signal to noise ratio of i user terminal, h (SIR _Avg ⁱ) be SIR _Avg ⁱNondecreasing function.

SIR _Avg ⁱBy 1 rank αLv Boqi: ${\mathrm{SIR}}_{\mathrm{avg}}^i={\mathrm{\αSIR}}_{\mathrm{cur}}^i+(1-\mathrm{\α}){\mathrm{SIR}}_{\mathrm{avg}}^i$ Obtain, wherein, SIR _Cur ⁱBe the value of the current up signal to noise ratio of i user terminal, 0＜α＜1.

In addition, when the ratio of described base-station node according to described transmission rate and described ascending power, and described up signal to noise ratio is provided with described dispatching priority by following formula when described dispatching priority is set:

${\mathrm{USER}}_{\mathrm{pri}}^i=w_1\·g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)+w_2\·h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$

Wherein, USER _Pri ⁱBe the dispatching priority of i user terminal, USER _Pri ⁱValue big more, the dispatching priority of this user terminal is high more, A _Avg ⁱBe the transmission rate of i user terminal and the mean ratio of ascending power, A _Cur ⁱBe the current transmission rate of i user terminal and the ratio of ascending power, $g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)$ For $\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}$ Nondecreasing function, SIR _Avg ⁱBe the mean value of the up signal to noise ratio of i user terminal, h (SIR _Avg ⁱ) be SIR _Avg ⁱNondecreasing function, w ₁And w ₂Be respectively scale factor.

The present invention also provides a kind of base-station node, comprises the transmission rate of measuring user terminal and the measurement module of ascending power and/or up signal to noise ratio, also comprises:

Module is set, is used for transmission rate and the ratio of ascending power and/or the dispatching priority that up signal to noise ratio is provided with this user terminal according to user terminal.

When the described ratio that module is set according to described transmission rate and described ascending power, and described up signal to noise ratio is provided with described dispatching priority by following formula when described dispatching priority is set:

${\mathrm{USER}}_{\mathrm{pri}}^i=w_1\·g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)+w_2\·h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$

Wherein, USER _Pri ⁱBe the dispatching priority of i user terminal, A _Avg ⁱBe the transmission rate of i user terminal and the mean ratio of ascending power, A _Cur ⁱBe the current transmission rate of i user terminal and the ratio of ascending power, $g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)$ For $\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}$ Nondecreasing function, SIR _Avg ⁱBe the mean value of the up signal to noise ratio of i user terminal, h (SIR _Avg ⁱ) be SIR _Avg ⁱNondecreasing function, w ₁And w ₂Be respectively scale factor.

Described A _Avg ⁱBy 1 rank αLv Boqi: $A_{\mathrm{avg}}^i={\mathrm{\αA}}_{\mathrm{cur}}^i+(1-\mathrm{\α})A_{\mathrm{avg}}^i$ Obtain;

SIR _Avg ⁱBy 1 rank αLv Boqi: ${\mathrm{SIR}}_{\mathrm{avg}}^i={\mathrm{\αSIR}}_{\mathrm{cur}}^i+(1-\mathrm{\α}){\mathrm{SIR}}_{\mathrm{avg}}^i$ Obtain;

Wherein, SIR _Cur ⁱBe the value of the current up signal to noise ratio of i user terminal, 0＜α＜1.

By relatively finding, the main distinction of technical scheme of the present invention and prior art is, after base-station node is measured the uplink signal-channel quality parameters such as transmission rate, ascending power and up signal to noise ratio of user terminal, the dispatching priority of this user terminal is set according to the up signal to noise ratio of the ratio of transmission rate and ascending power and/or user terminal.Make uplink signal-channel quality preferably user terminal can obtain the service of base-station node with more ratio, thereby the overall performance of optimization system has improved the sub-district throughput.

Base-station node according to the formula that the ratio of transmission rate and ascending power is provided with dispatching priority is: ${\mathrm{USER}}_{\mathrm{pri}}^i=g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)$ 。Make that the ratio that subscriber equipment obtains serving can not change too tempestuously when efficiency of transmission in a short time acute variation took place because of accidental factor, thereby realize the reasonable distribution of system resource, and then optimized systematic function, improved the sub-district throughput.

Base-station node according to the formula that up signal to noise ratio is provided with dispatching priority is: ${\mathrm{USER}}_{\mathrm{pri}}^i=h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$ 。The ratio that makes the high user of up signal to noise ratio obtain serving is higher than the low user's of up signal to noise ratio ratio.Thereby realize the reasonable distribution of system resource, and then optimized systematic function, improved the sub-district throughput.

Base-station node passes through formula: ${\mathrm{USER}}_{\mathrm{pri}}^i=w_1\·g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)+w_2\·h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$ When dispatching priority being set, not only taken all factors into consideration user's the efficiency of transmission and the factor of up signal to noise ratio two aspects, and taken all factors into consideration the stability of system resource allocation and according to the promptness of reacting condition for the user.According to concrete applied environment choose reasonable parameter, both can accomplish in time to change the ratio that subscriber equipment obtains serving according to the variation of subscriber equipment uplink signal-channel quality, can not make this change too sensitive again, thereby make that on the whole the distribution of system resource is more reasonable.

Description of drawings

Fig. 1 is the method to set up flow chart according to the scheduling of user terminals priority of first embodiment of the invention;

Fig. 2 is the method to set up flow chart according to the scheduling of user terminals priority of second embodiment of the invention;

Fig. 3 is the method to set up flow chart according to the scheduling of user terminals priority of third embodiment of the invention;

Fig. 4 is the system construction drawing according to the NodeB of four embodiment of the invention.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.

Core of the present invention is, after NodeB measures the uplink signal-channel quality parameters such as transmission rate, ascending power and up signal to noise ratio of user terminal, according to the transmission rate of this user terminal and the ratio of ascending power, or its up signal to noise ratio, the dispatching priority of this user terminal is set, maybe the transmission rate of this user terminal is combined with its up signal to noise ratio with the ratio of ascending power again, the dispatching priority of this user terminal comprehensively is set.

Describe according to the dispatching priority method to set up of inventive principle below the first embodiment of the invention user terminal.

As shown in Figure 1, in step 110, transmission rate that NodeB monitor user ' terminal i is current and ascending power.

Then enter step 120, NodeB is according to formula $A_{\mathrm{cur}}^i={\mathrm{Rate}}_{\mathrm{cur}}^i/P_{\mathrm{uL}}^i$ Calculate the ratio of current transmission rate of user terminal i and ascending power.Wherein, the Rate in the formula _Cur ⁱBe the transmission rate of user terminal i, P _UL ⁱBe the ascending power of user terminal i, A _Cur ⁱBe both ratio.

Then enter step 130, NodeB calculates the transmission rate of user terminal i and the mean ratio of ascending power, promptly calculates A _Cur ⁱMean value A _Avg ⁱIn the present embodiment, by 1 rank αLv Boqi: $A_{\mathrm{avg}}^i={\mathrm{\αA}}_{\mathrm{cur}}^i+(1-\mathrm{\α})A_{\mathrm{avg}}^i$ Smoothly obtain final mean value A _Avg ⁱ, wherein, 0＜α＜1, the size of α can be determined according to actual conditions in this span.For example set α=0.1, the ratio A of user terminal i transmission rate and ascending power _Cur ⁱBe 10, the mean ratio A of transmission rate and ascending power _Avg ⁱBe 8 as calculated, NodeB utilizes the level and smooth current measured value of 1 rank αLv Boqi, promptly passes through formula $A_{\mathrm{avg}}^i={\mathrm{\αA}}_{\mathrm{cur}}^i+(1-\mathrm{\α})A_{\mathrm{avg}}^i=0.1\×10+(1-0.1)\×8=8.2$ A after obtaining to handle _Avg ⁱBe 8.2.

Then enter step 140, NodeB is according to formula ${\mathrm{USER}}_{\mathrm{pri}}^i=g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)$ The dispatching priority of user terminal i is set.Wherein, USER _Pri ⁱThe dispatching priority of expression user terminal i, USER _Pri ⁱBe worth greatly more, the dispatching priority of this user terminal is high more, A _Avg ⁱBe the mean ratio that passes through final the transmission rate of obtaining and ascending power behind the 1 rank αLv Boqi of user terminal i, A _Cur ⁱBe the ratio of current transmission rate of user terminal i and ascending power, $g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)$ For $\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}$ Nondecreasing function.By this formula as seen, at the ratio A of current transmission rate of user terminal i and ascending power _Cur ⁱBecause of accidental factor (as external interference etc.) when diminishing suddenly, because its mean ratio A _Avg ⁱSubstantially constant, make both ratio $\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}$ Increase, thereby $g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)$ Also increase, the dispatching priority of user terminal i uprises, impel the system assignment more resources to give user terminal i, to offset the influence that extraneous bursty interference produces its ratio that obtains serving, make that the ratio that subscriber equipment obtains serving can not change too tempestuously when efficiency of transmission in a short time acute variation took place because of accidental factor, thereby realize the reasonable distribution of system resource, and then optimized systematic function, improved the sub-district throughput.

The method to set up of the dispatching priority of second embodiment of the invention user terminal as shown in Figure 2, in step 210, the current up signal to noise ratio SIR of NodeB monitor user ' terminal i _Cur ⁱ

Then enter step 220, NodeB calculates the mean value SIR of the up signal to noise ratio of user terminal i _Avg ⁱ, in the present embodiment, by 1 rank αLv Boqi: ${\mathrm{SIR}}_{\mathrm{avg}}^i=\mathrm{\α}{\mathrm{SIR}}_{\mathrm{cur}}^i+(1-\mathrm{\α}){\mathrm{SIR}}_{\mathrm{avg}}^i$ Smoothly obtain final mean value SIR _Avg ⁱ, wherein, 0＜α＜1, the size of α can be determined according to actual conditions in this span.

Then enter step 230, NodeB is according to formula ${\mathrm{USER}}_{\mathrm{pri}}^i=h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$ The dispatching priority of user terminal i is set.Wherein, USER _Pri ⁱThe dispatching priority of expression user terminal i, USER _Pri ⁱValue big more, the dispatching priority of this user terminal is high more, SIR _Avg ⁱBe the up signal to noise ratio mean value by the user terminal i that obtained behind the 1 rank αLv Boqi, h (SIR _Avg ⁱ) be SIR _Avg ⁱNondecreasing function.By this formula as seen, the average up signal to noise ratio SIR of user terminal i _Avg ⁱValue big more, h (SIR _Avg ⁱ) value big more, and then the dispatching priority of user terminal i is high more, the system that makes is preferably it and distributes more service and resource.Thereby the ratio that makes the high user terminal of up signal to noise ratio obtain serving is higher than the ratio of the low user terminal of up signal to noise ratio, has realized the reasonable distribution of system resource, has optimized systematic function, has improved the sub-district throughput.

The method to set up of the dispatching priority of third embodiment of the invention user terminal as shown in Figure 3, in step 310, the transmission rate Rate that NodeB monitor user ' terminal i is current _Cur ⁱ, ascending power P _UL ⁱ, and up signal to noise ratio SIR _Cur ⁱ

Then enter step 320, NodeB is according to formula $A_{\mathrm{cur}}^i={\mathrm{Rate}}_{\mathrm{cur}}^i/P_{\mathrm{uL}}^i$ Calculate the transmission rate of user terminal i and the ratio of ascending power.Wherein, the Rate in the formula _Cur ⁱBe the current transmission rate of user terminal i, P _UL ⁱBe the current ascending power of user terminal i, A _Cur ⁱBe both ratio.

Then enter step 330, NodeB calculates transmission rate and the mean ratio of ascending power, the i.e. A of user terminal i _Cur ⁱMean value A _Avg ⁱ, and the mean value SIR of the up signal to noise ratio of user terminal i _Avg ⁱ, and pass through 1 rank αLv Boqi: $A_{\mathrm{avg}}^i=\mathrm{\α}{A}_{\mathrm{cur}}^i+(1-\mathrm{\α})A_{\mathrm{avg}}^i$ The mean ratio A of smooth transmission rate and ascending power _Avg ⁱ, same, by 1 rank αLv Boqi: ${\mathrm{SIR}}_{\mathrm{avg}}^i={\mathrm{\αSIR}}_{\mathrm{cur}}^i+(1-\mathrm{\α}){\mathrm{SIR}}_{\mathrm{avg}}^i$ The mean value SIR of level and smooth up signal to noise ratio _Avg ⁱ, wherein, 0＜α＜1.

Then enter step 340, NodeB is according to formula ${\mathrm{USER}}_{\mathrm{pri}}^i=w_1\·g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)+w_2\·h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$ The dispatching priority of user terminal i is set.

Wherein, USER _Pri ⁱThe dispatching priority of expression user terminal i, USER _Pri ⁱValue big more, the dispatching priority of this user terminal is high more, A _Avg ⁱFor by the transmission rate of the user terminal i that obtained behind the 1 rank αLv Boqi and the mean ratio of ascending power, A _Cur ⁱBe the current transmission rate of user terminal i and the ratio of ascending power, $g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)$ For $\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}$ Nondecreasing function, SIR _Avg ⁱBe the mean value of the up signal to noise ratio by the user terminal i that obtained behind the 1 rank αLv Boqi, h (SIR _Avg ⁱ) be SIR _Avg ⁱNondecreasing function, w ₁And w ₂Be respectively scale factor.Pass through formula ${\mathrm{USER}}_{\mathrm{pri}}^i=w_1\·g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)+w_2\·h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$ The dispatching priority that user terminal is set has not only been taken all factors into consideration user's the efficiency of transmission and the factor of up signal to noise ratio two aspects, and taken all factors into consideration the stability of system resource allocation and according to the promptness of reacting condition, make that the setting of user terminal priority is more reasonable, more comprehensively.And this formula is according to concrete applied environment choose reasonable parameter, by adjusting w ₁And w ₂Value, make that NodeB both can accomplish in time to change the ratio that subscriber equipment obtains serving according to the variation of subscriber equipment uplink signal-channel quality, can not make this change too responsive again, thereby make that on the whole the distribution of system resource is more reasonable.

The NodeB of four embodiment of the invention comprises the measurement module that is used to measure user terminal transmission rate, ascending power and up signal to noise ratio as shown in Figure 4, is used to be provided with the module that is provided with of scheduling of user terminals priority.

Specifically, NodeB detects current transmission rate, ascending power and the up signal to noise ratio of user terminal by measurement module, module is set according to the transmission rate that monitors and the ratio of ascending power, and up signal to noise ratio is provided with dispatching priority, promptly passes through formula: ${\mathrm{USER}}_{\mathrm{pri}}^i=w_1\·g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)+w_2\·h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$ The dispatching priority of user terminal is set.Wherein, USER _Pri ⁱBe the dispatching priority of i user terminal, USER _Pri ⁱValue big more, the dispatching priority of this user terminal is high more, A _Avg ⁱBe the transmission rate of i user terminal and the mean ratio of ascending power, A _Cur ⁱBe the current transmission rate of i user terminal and the ratio of ascending power, $g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)$ For $\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}$ Nondecreasing function, SIR _Avg ⁱBe the mean value of the up signal to noise ratio of i user terminal, h (SIR _Avg ⁱ) be SIR _Avg ⁱNondecreasing function, w ₁And w ₂Be respectively scale factor.And, the A in the formula _Avg ⁱBy 1 rank αLv Boqi: $A_{\mathrm{avg}}^i=\mathrm{\α}{A}_{\mathrm{cur}}^i+(1-\mathrm{\α})A_{\mathrm{avg}}^i$ Obtain SIR _Avg ⁱBy 1 rank αLv Boqi:

Obtain SIR _Cur ⁱBe the value of the current up signal to noise ratio of i user terminal, 0＜α＜1.

Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.

Claims (9)

1. the method to set up of the dispatching priority of a user terminal, it is characterized in that, comprise following steps: the transmission rate of base-station node monitor user ' terminal and ascending power and/or up signal to noise ratio, and the dispatching priority that this user terminal is set according to the ratio and/or the up signal to noise ratio of transmission rate that records and ascending power.

2. the method to set up of the dispatching priority of user terminal according to claim 1, it is characterized in that, when described base-station node only is provided with described dispatching priority according to the ratio of described transmission rate and described ascending power, described dispatching priority is set by following formula:

${\mathrm{USER}}_{\mathrm{pri}}^i=g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)$

Wherein, USER _Pri ⁱBe the dispatching priority of i user terminal, USER _Pri ⁱValue big more, the dispatching priority of this user terminal is high more, A _Avg ⁱBe the transmission rate of i user terminal and the mean ratio of ascending power, A _Cur ⁱBe the current transmission rate of i user terminal and the ratio of ascending power,

For

Nondecreasing function.

3. the method to set up of the dispatching priority of user terminal according to claim 2 is characterized in that, A _Avg ⁱBy 1 rank αLv Boqi: $A_{\mathrm{avg}}^i=\mathrm{\α}{A}_{\mathrm{cur}}^i+(1-\mathrm{\α})A_{\mathrm{avg}}^i$ Obtain, wherein, 0＜α＜l.

4. the method to set up of the dispatching priority of user terminal according to claim 1 is characterized in that, when described base-station node only is provided with described dispatching priority according to described up signal to noise ratio, by following formula described dispatching priority is set:

${\mathrm{USER}}_{\mathrm{pri}}^i=h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$

Wherein, USER _Pri ⁱBe the dispatching priority of i user terminal, USER _Pri ⁱValue big more, the dispatching priority of this user terminal is high more, SIR _Avg ⁱBe the mean value of the up signal to noise ratio of i user terminal, h (SIR _Avg ⁱ) be SIR _Avg ⁱNondecreasing function.

5. the method to set up of the dispatching priority of user terminal according to claim 4 is characterized in that, SIR _Avg ⁱBy 1 rank αLv Boqi: ${\mathrm{SIR}}_{\mathrm{avg}}^i=\mathrm{\α}{\mathrm{SIR}}_{\mathrm{cur}}^i+(1-\mathrm{\α}){\mathrm{SIR}}_{\mathrm{avg}}^i$ Obtain, wherein, SIR _Cur ⁱBe the value of the current up signal to noise ratio of i user terminal, 0＜α＜1.

6. the method to set up of the dispatching priority of user terminal according to claim 1, it is characterized in that, when the ratio of described base-station node according to described transmission rate and described ascending power, and described up signal to noise ratio is provided with described dispatching priority by following formula when described dispatching priority is set:

${\mathrm{USER}}_{\mathrm{pri}}^i=w_1\·g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)+w_2\·h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$

Wherein, USER _Pri ⁱBe the dispatching priority of i user terminal, USER _Pri ⁱValue big more, the dispatching priority of this user terminal is high more, A _Avg ⁱBe the transmission rate of i user terminal and the mean ratio of ascending power, A _Cur ⁱBe the current transmission rate of i user terminal and the ratio of ascending power,

For

Nondecreasing function, SIR _Avg ⁱBe the mean value of the up signal to noise ratio of i user terminal, h (SIR _Avg ⁱ) be SIR _Avg ⁱNondecreasing function, w ₁And w ₂Be respectively scale factor.

7. base-station node comprises the transmission rate of measuring user terminal and the measurement module of ascending power and/or up signal to noise ratio, it is characterized in that, also comprises:

Module is set, is used for transmission rate and the ratio of ascending power and/or the dispatching priority that up signal to noise ratio is provided with this user terminal according to user terminal.

8. base-station node according to claim 7, it is characterized in that, when the described ratio that module is set according to described transmission rate and described ascending power, and described up signal to noise ratio is provided with described dispatching priority by following formula when described dispatching priority is set:

${\mathrm{USER}}_{\mathrm{pri}}^i=w_1\·g\left(\frac{A_{\mathrm{avg}}^i}{A_{\mathrm{cur}}^i}\right)+w_2\·h\left({\mathrm{SIR}}_{\mathrm{avg}}^i\right)$

Wherein, USER _Pri ⁱBe the dispatching priority of i user terminal, A _Avg ⁱBe the transmission rate of i user terminal and the mean ratio of ascending power, A _Cur ⁱBe the current transmission rate of i user terminal and the ratio of ascending power,

For

Nondecreasing function, SIR _Avg ⁱBe the mean value of the up signal to noise ratio of i user terminal, h (SIR _Avg ⁱ) be SIR _Avg ⁱNondecreasing function, w ₁And w ₂Be respectively scale factor.

9. base-station node according to claim 8 is characterized in that,

Described A _Avg ⁱBy l rank αLv Boqi: $A_{\mathrm{avg}}^i=\mathrm{\α}{A}_{\mathrm{cur}}^i+(1-\mathrm{\α})A_{\mathrm{avg}}^i$ Obtain;

SIR _Avg ⁱBy 1 rank αLv Boqi: ${\mathrm{SIR}}_{\mathrm{avg}}^i=\mathrm{\α}{\mathrm{SIR}}_{\mathrm{cur}}^i+(1-\mathrm{\α}){\mathrm{SIR}}_{\mathrm{avg}}^i$ Obtain;

Wherein, SIR _Cur ⁱBe the value of the current up signal to noise ratio of i user terminal, 0＜α＜1.

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