CN102625436A - Authorized power acquiring method, apparatus and base station - Google Patents
Authorized power acquiring method, apparatus and base station Download PDFInfo
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Abstract
The invention provides an authorized power acquiring method, apparatus and base station. The method comprises: acquiring a residual data bulk of UE according to a received E-PUCH; when the residual data bulk is more than a MAC-d PDU, determining whether a first data bulk carried by E-PUCH is less than an authorization data bulk corresponding to the present authorized power; when the first data bulk is less than the authorized data bulk, obtaining the first authorized power corresponding to the first data bulk; and obtaining a next authorized power according to the first authorized power and the present authorized power. With the technical scheme in the present invention, an accuracy power authorized to UE can be improved, and a power control diverging problem can be solved, wherein the problem is caused by that the Node B is unable to acquire the code rate restriction information of UE, in prior art.
Description
Technical field
The present invention relates to wireless communication technology, relate in particular to a kind of authorization power acquisition methods, device and base station.
Background technology
High Speed Uplink Packet inserts (High Speed Uplink Packet Access; Abbreviate as: HSUPA) through adopt many yards transmission, (the Hybrid Automatic RepeatRequest that mixes automatic repeat requests; Abbreviate as: HARQ), based on the key technologies such as fast dispatch of base station (NodeB), strengthened the data service bearing capacity and the availability of frequency spectrum of up link greatly.
Wherein, the fast dispatch based on NodeB is meant that mainly a scheduling of resource function is from radio network controller (Radio Network Controller; Abbreviate as: RNC) move down into NodeB, by NodeB based on current user equipment (User Equipment; Abbreviate as: UE) channel condition and user fairness are controlled shared resource allocation.NodeB carries out resource allocation according to the dispatch request information that UE reports, and the resource of being distributed comprises time slot, code channel and power mandate.In HSUPA, information such as the resource parameters that UE can authorize according to NodeB, power, and combine current each cell downlink code check scheduling indication information and remaining available horsepower information itself etc. that its maximal rate is limited.For example, according to agreement regulation, timeslot number be 1 with 2 o'clock, UE can send transmission block (the Transport Block of maximum; Abbreviate as: the TB piece) size is respectively 2720 and 5220, but because UE self has carried out the code check restriction, sends maximum TB piece and possibly have only 2367 or 4650.
Wherein, in order to guarantee certain Block Error Rate, the big more desired power mandate of code check is big more, and for the UE that the code check restriction is arranged, the power mandate there is no need greater than the needed mandate of UE maximal rate.But because NodeB can't be known the maximal rate restricted information of UE, therefore, the schedule information that NodeB reports according to UE (schedule information; Abbreviate as: when SI) authorizing, authorization power can be greater than the required power of UE maximal rate.When the power that licenses to UE as NodeB surpassed the required power of the maximal rate of UE, UE can adopt the corresponding transmitting power of maximal rate to send upstream data with the corresponding TB block size of maximal rate; It is inconsistent that this moment, NodeB licensed to power and the actual emission power of UE, and NodeB still estimates signal to noise ratio (the Signal to Noise Ratio of Pe-base according to authorization power when carrying out power control; Abbreviate as: SNR), make SNR that the NodeB side estimates, and less than the SNR desired value, so NodeB can constantly improve closed power component (Pe-base) through the power control commands word by UE, cause power control to disperse less than actual SNR.
Summary of the invention
The present invention provides a kind of authorization power acquisition methods, device and base station, can't know the problem that power control that the code check restricted information of UE causes is dispersed in order to solve prior art because of NodeB, improves the accuracy of authorization power.
The present invention provides a kind of authorization power acquisition methods, comprising:
According to the scheduling enhanced dedicated channel physical uplink channel that receives, obtain the remaining data amount of subscriber equipment;
During greater than a MAC-d protocol Data Unit, judge that whether the first entrained data volume of said scheduling enhanced dedicated channel physical uplink channel is less than the corresponding authorization data amount of first authorization power in the remaining data amount of said subscriber equipment;
When judged result when being said first data volume, obtain the second corresponding authorization power of said first data volume less than said authorization data amount;
According to said first authorization power and said second authorization power, obtain the 3rd authorization power.
The present invention provides a kind of authorization power deriving means, comprising:
First acquisition module is used for obtaining the remaining data amount of subscriber equipment according to the scheduling enhanced dedicated channel physical uplink channel that receives;
First judge module; The remaining data amount at said subscriber equipment of being used for judges that whether the first entrained data volume of said scheduling enhanced dedicated channel physical uplink channel is less than the corresponding authorization data amount of first authorization power during greater than a MAC-d protocol Data Unit;
Second acquisition module when being used for judged result at said first judge module and being said first data volume less than said authorization data amount, obtains the second corresponding authorization power of said first data volume;
The 3rd acquisition module is used for obtaining the 3rd authorization power according to said first authorization power and said second authorization power.
The present invention provides a kind of base station, comprises arbitrary authorization power deriving means provided by the invention.
Authorization power acquisition methods provided by the invention, device and base station; NodeB knows that according to the scheduling enhanced dedicated channel physical uplink channel of UE UE also has data to send; And under the condition that UE has data to send, estimate that according to the first entrained data volume of the scheduling enhanced dedicated channel physical uplink channel that receives UE sends the second required authorization power of first data volume; Second authorization power and current first authorization power that licensed to UE required according to UE obtain the 3rd authorization power that license to UE.Compared with prior art; Technical scheme of the present invention is obtained the required authorization power of UE through the data volume that the scheduling enhanced dedicated channel physical uplink channel that receives carries; Confirm to license to the power of UE in conjunction with the required authorization power of UE, improved the accuracy of the power that licenses to UE, be associated with the code check restriction of UE and license to UE power; Therefore, overcome the problem that the power control that NodeB causes because of the code check restricted information that can't know UE in the prior art is dispersed.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The flow chart of the authorization power acquisition methods that Fig. 1 provides for the embodiment of the invention one;
The flow chart of the authorization power acquisition methods that Fig. 2 provides for the embodiment of the invention two;
The flow chart of a kind of implementation method of step 24 among Fig. 2 that Fig. 3 provides for the embodiment of the invention three;
The structural representation of the authorization power deriving means that Fig. 4 provides for the embodiment of the invention four;
The structural representation of the authorization power deriving means that Fig. 5 provides for the embodiment of the invention five.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The flow chart of the authorization power acquisition methods that Fig. 1 provides for the embodiment of the invention one.As shown in Figure 1, the authorization power acquisition methods of present embodiment comprises:
Step 11, (EnhancedDedicated Channel Physical Uplink Channel is called for short: E-PUCH), obtain the remaining data amount of UE according to the scheduling enhanced dedicated channel physical uplink channel that receives;
Wherein, E-PUCH is newly-increased in a HSUPA technology uplink physical channel; Transmission strengthens dedicated channel, and (Enhanced Dedicated Channel is called for short: E-DCH) the coded combination transmission channel of type (Coded Composite Transport Channel; Abbreviate as: CCTrCH), be used to carry the upstream data of UE.Wherein, E-DCH has two medium access control (Media Access Control; Abbreviate as: MAC) sublayer: MAC-e and MAC-es.MAC-es directly receives MAC-es service data unit (Service Data Unit on MAC-e; Abbreviate as: (be MAC-d protocol Data Unit (Protocol Data Unit SDU); Abbreviate as: PDU)).Wherein, identical size and be multiplexed into a MAC-es PDU from the MAC-es SDU of same logic channel, a plurality of MAC-es PDU of a plurality of logic channels are multiplexed into a MAC-e PDU, and each transmission time gap (TransmissionTime Interval; Abbreviate as: TTI) can only send a MAC-e PDU.Whether concrete, UE sends data through E-PUCH to NodeB, and NodeB receives the data of UE, and obtain UE according to E-PUCH and also have data to send, and promptly obtains the remaining data amount of UE.
Wherein, When if enough remaining spaces being arranged in the E-DCH transmission block or needing transmission SI; Can carry this SI through the afterbody of MAC-e PDU, therefore, UE can regularly send SI to NodeB through E-PUCH; This SI is used to inform that whether NodeB also has data to send, and how many data volumes that waits to send is etc.In the present embodiment, NodeB is to obtain according to the SI among the E-PUCH according to the remaining data measuring that E-PUCH obtains UE.Because UE regularly sends SI to NodeB, therefore, the current E-PUCH that receives of NodeB possibly comprise SI also possibly not comprise SI.Therefore, when NodeB receives E-PUCH, judge at first whether this E-PUCH comprises SI; When judging this E-PUCH and comprise SI, NodeB is directly according to (the TotalE-DCH Buffer Status index of the E-DCH buffer status index value among the SI; Abbreviate as: TEBS-index) obtain the remaining data amount of UE, TEBS-index representes UE, and all are mapped to data total amount waiting for transmission, i.e. remaining data amount on the E-DCH logic channel; When judging this E-PUCH and not comprising SI; NodeB obtains the SI that receives at last; Obtain the data volume that UE waits to send when receiving SI at last according to the TEBS-index among the SI that receives at last; Simultaneously NodeB is obtained from the data volume (i.e. second data volume) that receives the UE that SI receives to current time at last, and then, UE waited to send when NodeB will receive SI at last the data volume and second data volume are poor; Can obtain the remaining data amount of current time UE, i.e. the UE data volume that waits to send.
Wherein, In the time of will not sending (present embodiment is example with the remaining data amount of UE less than a MAC-d PDU) when UE has data; No matter whether NodeB licenses to UE power, no matter also NodeB licenses to the great power of UE and the problem above the maximal rate restriction all can not occur existing, therefore; The situation that does not have data to send for UE; Present embodiment is not done qualification to the authorization power of NodeB, and NodeB can adopt the prior art scheme to carry out the power mandate, does not for example authorize or authorize a very little power to give UE.
Present embodiment hypothesis UE has data to send, and promptly the remaining data amount of UE at this moment, can continue to carry out subsequent step more than or equal to a MAC-d PDU.
Wherein, this receives the power that E-PUCH licenses to UE before when the first power power is meant NodeB, i.e. the authorization power that the E-PUCH of this reception is corresponding.First data volume is meant the entrained data volume of E-PUCH channel that this is received.Wherein, NodeB can write down and add up the data volume of the UE that receives when receiving the E-PUCH of UE.
Wherein, as authorization power (the Power Resource Related Information of NodeB; Abbreviate as: when PRRI) equaling the pairing power of the maximal rate of UE, required actual emission power was that the authorization power according to NodeB, closed power component (Pe-base) and the path loss calculation that the UE side is safeguarded are obtained when UE sent E-PUCH.Wherein, when the authorization power of NodeB during greater than the required power of UE maximal rate, UE can go out actual emission power according to the required power of maximal rate, the closed power component of being safeguarded and path loss calculation; The second corresponding authorization power of first data volume that receives of NodeB might be inconsistent with the authorization power (i.e. first authorization power) of NodeB in this case.Wherein, second authorization power is meant according to the corresponding relation between the authorization power of NodeB and the authorization data amount, the required performance number of first data volume that is calculated, that is the required power of UE side maximal rate when calculating actual emission power.
Can know that by above-mentioned analysis the actual emission power of UE side is relevant with maximal rate, also can think relevant with data volume.Therefore, NodeB is through judging the magnitude relationship between the entrained data volume of the E-PUCH data volume (being the authorization data amount) corresponding with first authorization power, the required power of maximal rate in the time of can knowing first authorization power whether greater than the calculating actual emission power.
When NodeB judges first data volume less than the authorization data amount; Can know that the required power of maximal rate when UE calculates actual emission power is less than first authorization power; NodeB is according to the entrained data volume (i.e. first data volume) of E-PUCH that receives; Obtain the required power of UE side maximal rate, that is pairing second authorization power of first data volume.Wherein, Second authorization power is corresponding to normalized gain factor-beta 0e; The method that NodeB calculates normalized gain factor-beta 0e is: NodeB obtains the actual data block size (i.e. first data volume) of carrying of E-PUCH through decoding, and obtains corresponding code rate according to the data block size, in rate tables, finds the corresponding β 0e of this code check then; If this code check not in the rate tables then need calculate through the mode of interpolation.Wherein, rate tables is issued UE and NodeB by the RNC configuration and through signaling.
Wherein, the 3rd authorization power is meant that NodeB carries out adjusted authorization power according to the required power of UE side maximal rate, need license to the power of UE in the subsequent power Authorized operation.Concrete, NodeB obtains the required power of UE side maximal rate (i.e. second authorization power) afterwards, obtains the first authorization power thresholding according to formula (1); And in the first authorization power thresholding, obtain the 3rd authorization power.
MaxLemdGrant’＝(1-P)*MaxLemdGrant+P*L (1)
Wherein, MaxLemdGrant ' the expression first authorization power thresholding; MaxLemdGrant representes the second authorization power thresholding; L representes that NodeB calculates the required power of UE side maximal rate that obtains; P representes forgetting factor, and 0=＜P＜=1.Wherein, the first authorization power thresholding is meant the higher limit of the pairing power of the 3rd authorization power; The second authorization power thresholding is meant the power upper limit value that first authorization power is corresponding.
Can know that by above-mentioned formula (1) NodeB adjusts the corresponding power upper limit value (i.e. the second authorization power thresholding) of first authorization power according to the required power of UE side maximal rate, obtains the first authorization power thresholding; Through the required power of UE side maximal rate that can the higher limit of authorization power be furthered after formula (1) adjustment; And because the 3rd authorization power can not be greater than this first authorization power thresholding; The 3rd authorization power has improved the accuracy of authorization power more near the required power of UE side maximal rate.
Further; Can know by above-mentioned formula (1); Along with the value of forgetting factor P is big more, the required power of UE side maximal rate is handed down to UE to NodeB the influence of higher limit of the 3rd authorization power is just big more, and promptly NodeB can adjust the influence degree of the required power of UE side maximal rate to the 3rd authorization power that is handed down to UE through the size of adjustment forgetting factor P; To take into full account required this factor of power of UE side maximal rate, improve the accuracy of the power that licenses to UE.
The authorization power acquisition methods of present embodiment; NodeB knows that according to the E-PUCH of UE UE also has data to send; And under the condition that UE has data to send, estimate the required power of UE side maximal rate according to the entrained data volume of E-PUCH; The corresponding authorization power of E-PUCH according to the required power of UE side maximal rate and this reception obtains the follow-up power that should license to UE.Compared with prior art; The NodeB of present embodiment obtains the required power of UE side maximal rate according to the data volume of the UE that receives; Confirm to license to the power of UE in conjunction with the required rate of UE side maximal rate, taken into full account this factor of UE side maximal rate, therefore; Improve the accuracy of the power that licenses to UE, overcome the problem that the power control that NodeB causes because of the code check restricted information that can't know UE in the prior art is dispersed.Further; Because NodeB has improved the accuracy of authorization power; Make UE can adopt suitable power to send data; Avoid power dissipation, reduced interference, reduced thermal noise lifting (Rise OfThermal this sub-district and adjacent sub-district to this sub-district or adjacent sub-district because of adopting big transmitting power to cause; Abbreviate as: RoT).
The flow chart of the authorization power acquisition methods that Fig. 2 provides for the embodiment of the invention two.Present embodiment can realize that something in common repeats no more, and is as shown in Figure 2 based on embodiment one, and the authorization power acquisition methods of present embodiment comprises:
Whether concrete, UE sends data through E-PUCH to NodeB, and NodeB receives the data of UE, and obtain UE according to the SI among the E-PUCH and also have data to send, and promptly obtains the remaining data amount of UE.
Wherein, first data volume is meant the data volume that the E-PUCH of this reception of NodeB is entrained, the data volume that the MAC-d PDU that promptly carries among the MAC-e PDU is corresponding.If judged result be first data volume less than the authorization data amount, first authorization power of the required power of UE side maximal rate less than NodeB is described, execution in step 24; Otherwise, if judged result is first data volume when equaling the authorization data amount, explain that the required power of UE side maximal rate equals first authorization power of NodeB, then execution in step 25.
Step 24, obtain the second corresponding authorization power of first data volume, and, obtain the 3rd authorization power according to first authorization power and second authorization power, and execution in step 26;
When NodeB knows that the required power of UE side maximal rate licenses to the power of UE less than the corresponding NodeB of this E-PUCH that receives; The data volume entrained according to the E-PUCH of this reception; Obtain the required power of UE side maximal rate; Obtain the first corresponding authorization power thresholding of the 3rd authorization power according to formula (1) then, and at the first authorization power thresholding with interior selection the 3rd authorization power.Concrete; NodeB can be as prior art selects authorization power according to UE dump power, remaining data amount and to adjacent area disturbed condition etc.; Then; The authorization power and the first authorization power thresholding selected are compared,, confirm that then selected authorization power is the 3rd authorization power if be not more than the first authorization power thresholding; Otherwise, authorize thresholding as the 3rd authorization power with first.
Step 25, the second authorization power thresholding is increased preset power step size value, and, obtain the first authorization power thresholding according to the second authorization power thresholding and preset authorization power thresholding initial value, and execution in step 26; Concrete; NodeB is known when the required power of UE side maximal rate equals to license to for the last time the power of UE (i.e. first authorization power); The second authorization power thresholding that first authorization power is corresponding increases preset power step size value, to raise the second authorization power thresholding; Then, the second authorization power thresholding and preset authorization power thresholding initial value after raising are compared; The second authorization power thresholding after raising is during less than preset authorization power thresholding initial value, with the second authorization power thresholding after the rise as the first authorization power thresholding; The second authorization power thresholding after raising will be preset authorization power thresholding initial value as the first authorization power thresholding during more than or equal to preset authorization power thresholding initial value.NodeB selects the 3rd authorization power based on the first authorization power thresholding of this moment.
Wherein, NodeB can be provided with authorization power thresholding initial value in advance according to the agreement regulation.Because the agreement regulation is represented authorization power with five bits, the scope of authorization power can only be-12 to 19 like this, and therefore, present embodiment is in order to adapt with agreement, and the initial value of setting the authorization power thresholding is 19.0dB, is used for the higher limit of initialization authorization power.
Wherein, Visible by formula (1); NodeB only can reduce the authorization power thresholding during less than authorization power at the required power of UE side maximal rate, so that the 3rd authorization power of selecting is as far as possible near the required power of UE side maximal rate, and in order to prevent that the authorization power thresholding is by downward modulation always; Present embodiment NodeB is through be provided with the power step size value in advance; And when the required power of UE side maximal rate equals first authorization power, through this power step size value the authorization power thresholding is suitably raised, remain in the proper range to guarantee the authorization power thresholding.Wherein, this power step size value can for example can be made as 0.1dB, but be not limited to this for setting according to the real network state.
Concrete, NodeB can pass through E-DCH absolute grant channel (E-DCH Absolute Grant Channel after getting access to the 3rd authorization power that licenses to UE; Abbreviate as: the 3rd authorization power that E-AGCH) will obtain is handed down to UE when carrying out the power Authorized operation, this E-AGCH can carry power authorization message (PRRI), comprises authorization power.
The authorization power acquisition methods of present embodiment; NodeB knows that according to the E-PUCH of UE UE also has data to send; And under the condition that UE has data to send, estimate the required power of UE side maximal rate according to the entrained data volume of E-PUCH; According to the required power of the UE side maximal rate authorization power corresponding with this E-PUCH that receives; Obtain the follow-up power that should license to UE, and the 3rd authorization power that when the subsequent power mandate, will obtain is handed down to UE, so that UE sends follow-up data according to the 3rd authorization power.Compared with prior art; The NodeB of present embodiment obtains the required power of UE side maximal rate according to the data volume of the UE that receives; Confirm to license to the power of UE in conjunction with the required power of UE side maximal rate, fully examined this factor of UE side maximal rate, therefore; Improve the accuracy of the power that licenses to UE, overcome the problem that the power control that NodeB causes because of the code check restricted information that can't know UE in the prior art is dispersed.Further; Because NodeB has improved the accuracy of authorization power, make UE can adopt suitable power to send data, avoid power dissipation because of adopting big transmitting power to cause; Reduced interference, reduced RoT this sub-district and adjacent sub-district to this sub-district or adjacent sub-district.
The flow chart of a kind of implementation method of step 24 among Fig. 2 that Fig. 3 provides for the embodiment of the invention three.Present embodiment realizes that based on embodiment two as shown in Figure 3, the execution mode of the step 24 that present embodiment provides comprises:
Concrete, this step can repeat no more at this referring to the detailed description of above-mentioned steps 13.
Concrete, obtain the first authorization power threshold value according to formula (1), describe in detail referring to above-mentioned steps 14, repeat no more at this.Step 243, judge that whether the first authorization power thresholding is greater than preset authorization power thresholding lower limit;
Wherein, Preset authorization power thresholding lower limit is for preventing that repeatedly adjusting the authorization power thresholding according to formula (1) makes authorization power the thresholding too small and predefined lower limit that becomes; This authorization power thresholding lower limit can be provided with according to the agreement regulation; For example be set to 16QAM in the rate tables, the normalized gain factor-beta 0e that 0.8 code check is corresponding, but be not limited to this; In addition, if this 16QAM not in the rate tables, 0.8 code check then need calculate through the mode of interpolation, authorization power thresholding lower limit is set then is the corresponding normalized gain factor-beta 0e of this code check.
Wherein, when judged result for not the time, execution in step 244; Otherwise, execution in step 245.
Concrete, the operation through step 244 can guarantee that the first authorization power thresholding is unlikely to too small, guarantees that the first authorization power thresholding is in suitable scope.
Concrete; NodeB can be as prior art selects authorization power according to UE dump power, remaining data amount and to adjacent area disturbed condition etc.; Then; The authorization power and the first authorization power thresholding selected are compared,, confirm that then selected authorization power is the 3rd authorization power if be not more than the first authorization power thresholding; Otherwise, authorize thresholding as the 3rd authorization power with first.
The authorization power acquisition methods of present embodiment; After will obtaining the first authorization power thresholding, pass through to judge that whether the first authorization power thresholding is greater than preset authorization power thresholding lower limit; Can guarantee that the power that licenses to UE is unlikely to too small, make UE can correctly send data.
The structural representation of the authorization power deriving means that Fig. 4 provides for the embodiment of the invention four.As shown in Figure 4, the device of present embodiment comprises: first acquisition module 41, first judge module 42, second acquisition module 43 and the 3rd acquisition module 44.
Wherein, first acquisition module 41 is used for obtaining the remaining data amount of UE according to the E-PUCH that receives; First judge module 42 is connected with first acquisition module 41, and the remaining data amount at UE of being used for judges that whether the first entrained data volume of E-PUCH is less than the corresponding authorization data amount of first authorization power during greater than a MAC-d PDU; Second acquisition module 43 is connected with first judge module 42, when being used for judged result at first judge module 42 and being first data volume less than the authorization data amount, obtains the second corresponding authorization power of first data volume; The 3rd acquisition module 44 is connected with second acquisition module 43, is used for obtaining the 3rd authorization power according to first authorization power and second authorization power.
Above-mentioned each functional module can be used for carrying out the detailed process of said method embodiment, and its concrete operation principle sees the description of method embodiment for details, repeats no more at this.
The authorization power deriving means of present embodiment; E-PUCH according to the UE that receives judges whether UE also has data to send; When judging UE and also have data to send; Judge the required power of UE side maximal rate according to the entrained data volume of E-PUCH; The corresponding authorization power of E-PUCH according to the required power of UE side maximal rate and this reception is confirmed the 3rd authorization power (being new authorization power), has improved the accuracy of the power that licenses to UE, has overcome the power control divergence problem that causes because of the code check restricted information that can't know the UE side in the prior art.In addition; The authorization power that the authorization power deriving means of present embodiment obtains is more near the required power of the maximal rate of UE side; Can improve the accuracy of the power that licenses to UE, make UE can adopt suitable power to send data, avoid power dissipation because of adopting big transmitting power to cause; Reduced interference, reduced RoT this sub-district and adjacent sub-district to this sub-district or adjacent sub-district.
Further, first acquisition module 41 of present embodiment comprises: judging unit 411, first acquiring unit 412 and second acquisition unit 413.Judging unit 411 is used for judging whether the E-PUCH that receives comprises SI; First acquiring unit 412 is connected with judging unit 411, when being used for judged result at judging unit 411 and being E-PUCH and comprising SI, obtains the remaining data amount of UE according to the TEBS-index among the SI; Second acquisition unit 413; Be connected with judging unit 411; When being used for judged result at judging unit 411 and being E-PUCH and not comprising SI; According to the TEBS-index among the SI that receives at last with Zi second data volume that receives the UE that SI receives to current time at last, obtain the remaining data amount of UE.
Above-mentioned each functional unit can be used for carrying out the idiographic flow of the remaining data amount of obtaining UE among the said method embodiment, and its operation principle can see the description of method embodiment for details, repeats no more at this.
Further, the 3rd acquisition module 44 of present embodiment comprises: the 3rd acquiring unit 441 and the 4th acquiring unit 442.The 3rd acquiring unit 441 is connected with second acquisition module 43, is used for obtaining the first authorization power thresholding according to formula (1); The 4th acquiring unit 442 is connected with first acquiring unit 441, is used in the first authorization power thresholding, obtaining the 3rd authorization power.Wherein, can repeat no more at this referring to the description of preceding method embodiment about the detailed introduction of formula (1).
Above-mentioned each functional unit can be used for carrying out the detailed process that obtains the 3rd authorization power among the said method embodiment, and its operation principle sees the description of method embodiment for details, repeats no more at this.Present embodiment is through the 3rd acquiring unit and the 4th acquiring unit; At first obtain the authorization power thresholding according to the required power of UE side maximal rate; In the authorization power thresholding, obtain authorization power then; Can guarantee that authorization power is not more than the required power of UE side maximal rate, has improved the accuracy of authorization power.
The structural representation of the authorization power deriving means that Fig. 5 provides for the embodiment of the invention five.Present embodiment can realize that as shown in Figure 5, the device of present embodiment also comprises based on embodiment four: increase module 45 and the 4th acquisition module 46.
Wherein, increase module 45, is connected, when being used for judged result at first judge module 42 and being first data volume and equaling the authorization data amount, the second authorization power thresholding increased preset the power step size value with first judge module 42; The 4th acquisition module 46 is connected with increase module 45, is used for obtaining the first authorization power thresholding according to the second authorization power threshold value and preset authorization power thresholding initial value.
Wherein, increasing module 45 comprises: comparing unit 451, the 5th acquiring unit 452 and the 6th acquiring unit 453.Comparing unit 451 is connected with first judge module 42, when being used for judged result at first judge module 42 and being first data volume and equaling the authorization data amount, the second authorization power thresholding and preset power threshold initial value is compared; The 5th acquiring unit 452 is connected with comparing unit 451, be used for when comparing unit 451 relatively draws the second authorization power thresholding less than preset authorization power thresholding initial value, with the second authorization power thresholding as the first authorization power thresholding; The 6th acquiring unit 453 is connected with comparing unit 451, is used for when comparing unit 451 relatively draws the second authorization power thresholding more than or equal to preset authorization power thresholding initial value, will presetting authorization power thresholding initial value as the first authorization power thresholding.
Above-mentioned each functional module or unit can be used for carrying out when UE side maximal rate power demand equals authorization power among the said method embodiment, obtain the detailed process of the first authorization power thresholding, and its operation principle repeats no more, and sees the description of preceding method embodiment for details.
Further; The authorization power deriving means of present embodiment also comprises: issue module 47, be connected with the 4th acquiring unit 442, be used for when carrying out the power Authorized operation; The 3rd authorization power is licensed to UE, and with the first authorization power thresholding again as the second authorization power thresholding.
Present embodiment authorization power deriving means can license to UE with the 3rd authorization power that is obtained through issuing module, so that UE carries out the transmission of follow-up data according to authorization power.
Further, the authorization power deriving means of present embodiment also comprises: second judge module 48 and setting module 49.Wherein, second judge module 48 is used for after the 3rd acquiring unit 441 obtains the first authorization power thresholding, judges that whether the first authorization power thresholding is greater than preset authorization power thresholding lower limit; If the judged result of second judge module 48 be greater than, then trigger the 4th acquiring unit 442 and carry out the operation of obtaining the 3rd authorization power; Otherwise, trigger setting module 49.Setting module 49 is used in the judged result of second judge module 48 will presetting authorization power thresholding lower limit and being set at the first authorization power thresholding, and this first authorization power thresholding is offered the 4th acquiring unit 442 for not the time.
Above-mentioned each functional module can be used for carrying out the detailed process that how to obtain the 3rd authorization power among the said method embodiment, and its operation principle sees the description of method embodiment for details, repeats no more at this.
The authorization power deriving means of present embodiment can guarantee that through above-mentioned judge module and setting module authorization power is unlikely to too small, can correctly send data according to authorization power to guarantee the UE side.
In sum; The authorization power deriving means of present embodiment; E-PUCH according to the UE that receives judges whether UE also has data to send; When judging UE and also have data to send, judge the required power of UE side maximal rate according to the entrained data volume of E-PUCH, confirm the 3rd authorization power (being new authorization power) according to the power and first authorization power that UE side maximal rate is required; Improve the accuracy of the power that licenses to UE, overcome the power control divergence problem that causes because of the code check restricted information that can't know the UE side in the prior art.In addition; The 3rd authorization power that the authorization power deriving means of present embodiment obtains is more near the required power of the maximal rate of UE side; Can improve the accuracy of the power that licenses to UE, make UE can adopt suitable power to send data, avoid power dissipation because of adopting big transmitting power to cause; Reduced interference, reduced RoT this sub-district and adjacent sub-district to this sub-district or adjacent sub-district.
The embodiment of the invention six provides a kind of base station, and this base station comprises the authorization power deriving means that the foregoing description provides.Operation principle and structure about the authorization power deriving means can repeat no more at this referring to the description of the foregoing description.
The base station of present embodiment; Comprise the authorization power deriving means that the foregoing description provides; Can be used for carrying out the flow process of the authorization power acquisition methods that said method embodiment provides, can confirm the 3rd authorization power, improved the accuracy of the power that licenses to UE according to UE side the maximal rate required power and first authorization power; Overcome prior art because of obtaining the problem that UE side code check restricted information causes power control to disperse; Simultaneously can be that UE sends data with suitable power, reduce interference, reduce RoT this sub-district and adjacent sub-district to this sub-district or adjacent sub-district.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (15)
1. an authorization power acquisition methods is characterized in that, comprising:
According to the scheduling enhanced dedicated channel physical uplink channel that receives, obtain the remaining data amount of subscriber equipment;
During greater than a MAC-d protocol Data Unit, judge that whether the first entrained data volume of said scheduling enhanced dedicated channel physical uplink channel is less than the corresponding authorization data amount of first authorization power in the remaining data amount of said subscriber equipment;
When judged result when being said first data volume, obtain the second corresponding authorization power of said first data volume less than said authorization data amount;
According to said first authorization power and said second authorization power, obtain the 3rd authorization power.
2. authorization power acquisition methods according to claim 1 is characterized in that, said according to the scheduling enhanced dedicated channel physical uplink channel that receives, the remaining data amount of obtaining subscriber equipment comprises:
Judge in the said scheduling enhanced dedicated channel physical uplink channel that receives and whether comprise schedule information;
If judged result is that said scheduling enhanced dedicated channel physical uplink channel comprises said schedule information, strengthen the remaining data amount that dedicated channel buffer status index value obtains said subscriber equipment according to the transmission in the said schedule information;
If judged result is that said scheduling enhanced dedicated channel physical uplink channel does not comprise said schedule information; Strengthen dedicated channel buffer status index value and, obtain the remaining data amount of said subscriber equipment according to the transmission in the schedule information that receives at last Zi second data volume that receives the said subscriber equipment that schedule information receives to current time at last.
3. authorization power acquisition methods according to claim 1 and 2 is characterized in that, and is said according to first authorization power and said second authorization power, obtains the 3rd authorization power and comprises:
According to the * MaxLemdGrant+P*L of formula MaxLemdGrant '=(1-P), obtain the first authorization power thresholding, the said first authorization power thresholding is the corresponding power upper limit value of said the 3rd authorization power;
In the said first authorization power thresholding, obtain said the 3rd authorization power;
Wherein, the said first authorization power thresholding of Max LemdGrant ' expression;
MaxLemdGrant representes the second authorization power thresholding, and the said second authorization power thresholding is the corresponding power upper limit value of said first authorization power;
L representes said second authorization power;
P representes forgetting factor, and 0=＜P＜=1.
4. authorization power acquisition methods according to claim 3 is characterized in that, also comprises:
When judged result is that said first data volume is when equaling said authorization data amount; The said second authorization power thresholding is increased preset power step size value; And, obtain the said first authorization power thresholding according to said second authorization power threshold value and preset authorization power thresholding initial value.
5. authorization power acquisition methods according to claim 4 is characterized in that, and is said according to said second authorization power thresholding and preset authorization power thresholding initial value, obtains the said first authorization power thresholding and comprises:
Said second authorization power thresholding and preset authorization power thresholding initial value are compared;
When the said second authorization power thresholding during less than said preset authorization power thresholding initial value, with the said second authorization power thresholding as the said first authorization power thresholding;
When the said second authorization power thresholding during more than or equal to said preset authorization power thresholding initial value, with said preset authorization power thresholding initial value as the said first authorization power thresholding.
6. authorization power acquisition methods according to claim 1 is characterized in that, after obtaining said the 3rd authorization power, also comprises:
When carrying out the power Authorized operation, said the 3rd authorization power is licensed to said subscriber equipment, and with the said first authorization power thresholding again as the second authorization power thresholding.
7. authorization power acquisition methods according to claim 6 is characterized in that, after obtaining the said first authorization power thresholding, also comprises:
Judge that whether the said first authorization power thresholding is greater than preset authorization power thresholding lower limit;
If judged result will be preset authorization power thresholding lower limit and be set at the said first authorization power thresholding for not.
8. an authorization power deriving means is characterized in that, comprising:
First acquisition module is used for obtaining the remaining data amount of subscriber equipment according to the scheduling enhanced dedicated channel physical uplink channel that receives;
First judge module; The remaining data amount at said subscriber equipment of being used for judges that whether the first entrained data volume of said scheduling enhanced dedicated channel physical uplink channel is less than the corresponding authorization data amount of first authorization power during greater than a MAC-d protocol Data Unit;
Second acquisition module when being used for judged result at said first judge module and being said first data volume less than said authorization data amount, obtains the second corresponding authorization power of said first data volume;
The 3rd acquisition module is used for obtaining the 3rd authorization power according to said first authorization power and said second authorization power.
9. authorization power deriving means according to claim 8 is characterized in that, said first acquisition module comprises:
Judging unit is used for judging whether the said scheduling enhanced dedicated channel physical uplink channel that receives comprises schedule information;
First acquiring unit; When being used for judged result at said judging unit and being said scheduling enhanced dedicated channel physical uplink channel and comprising said schedule information, strengthen the remaining data amount that dedicated channel buffer status index value obtains said subscriber equipment according to the transmission in the said schedule information;
Second acquisition unit; When being used for judged result at said judging unit and being said scheduling enhanced dedicated channel physical uplink channel and not comprising said schedule information; Strengthen dedicated channel buffer status index value and, obtain the remaining data amount of said subscriber equipment according to the transmission in the schedule information that receives at last Zi second data volume that receives the said subscriber equipment that schedule information receives to current time at last.
10. according to Claim 8 or 9 described authorization power deriving means, it is characterized in that said the 3rd acquisition module comprises:
The 3rd acquiring unit is used for the * MaxLemdGrant+P*L according to formula MaxLemdGrant '=(1-P), obtains the first authorization power thresholding, and the said first authorization power thresholding is the corresponding power upper limit value of said the 3rd authorization power;
The 4th acquiring unit is used in the said first authorization power thresholding, obtaining said the 3rd authorization power;
Wherein, the said first authorization power thresholding of Max LemdGrant ' expression;
MaxLemdGrant representes the second authorization power thresholding, and the said second authorization power thresholding is the corresponding power upper limit value of said first authorization power;
L representes said second authorization power;
P representes forgetting factor, and 0=＜P＜=1.
11. authorization power deriving means according to claim 10 is characterized in that, also comprises:
Increase module, when being used for judged result at said first judge module and being said first data volume and equaling said authorization data amount, will the said second authorization power thresholding increase and preset the power step size value;
The 4th acquisition module according to said second authorization power threshold value and preset authorization power thresholding initial value, obtains the said first authorization power thresholding.
12. authorization power deriving means according to claim 11 is characterized in that, said the 4th acquisition module comprises:
Comparing unit is used for said second authorization power thresholding and preset authorization power thresholding initial value are compared;
The 5th acquiring unit is used at the said second authorization power thresholding during less than said preset authorization power thresholding initial value, with the said second authorization power thresholding as the said first authorization power thresholding;
The 6th acquiring unit is used at the said second authorization power thresholding during more than or equal to said preset authorization power thresholding initial value, with said preset authorization power thresholding initial value as the said first authorization power thresholding.
13. authorization power deriving means according to claim 8 is characterized in that, also comprises:
Issue module, be used for when carrying out the power Authorized operation, said the 3rd authorization power being licensed to said subscriber equipment, and with the said first authorization power thresholding again as the second authorization power thresholding.
14. authorization power deriving means according to claim 13 is characterized in that, also comprises:
Second judge module is used to judge that whether the said first authorization power thresholding is greater than preset authorization power thresholding lower limit;
Setting module, the judged result that is used at said second judge module is not, will preset authorization power thresholding lower limit and be set at the said first authorization power thresholding.
15. base station that comprises each described authorization power deriving means of claim 8-14.
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