CN104735766A - Power control method and device for partial dedicated physical channel - Google Patents

Abstract

The invention relates to the field of communication, and discloses a power control method and device for a partial dedicated physical channel. According to the power control method for the partial dedicated physical channel, a CER target value obtained through statistics by using an outer loop power control bit inconsistent method is set as a referential CER target value through a mapping relation to enable the statistical result of the bit inconsistent method used in a current scheme to be in accordance with the statistical result of a hard decision method regulated by a protocol, and smoothing processing and polynomial calibration are performed on an SIR measured value in inner loop power control to enable the power control method for the partial dedicated physical channel to be more accurate.

Description

The Poewr control method of fractional dedicated physical channel and device

Technical field

The present invention relates to the communications field, particularly the Poewr control method of fractional dedicated physical channel and device.

Background technology

WCDMA(Wideband Code Division Multiple Access (WCDMA), Wideband Code Division Multiple Access) F-DPCH(fractional dedicated physical channel in system, Fractional Dedicated Physical Channel) power control techniques, relate generally to open sea wharf technology wherein and sir measurement technology.

Power control is a key technology of cdma system.For CDMA Cellular System, in same community, all users use identical frequency range and time slot, and (standard) orthogonal property only by spreading code between user is mutually isolated.But because the reason such as multipath, time delay of wireless channel makes the their cross correlation between each subscriber signal undesirable, the signal of other user produces interference to active user's signal, and this kind of interference is called as multi-access inference.All can increase interference to active user when user's number in community increases or other user power promotes, cause the received signal quality of active user to decline, when this kind of interference greatly to a certain extent time, active user just can not proper communication.Therefore cdma system is a serious interference limiting system, and the size of interference directly has influence on power system capacity.Power control techniques can effectively address this problem, it can adjust the transmitting power of each user, compensate for channel decline, counteracting near-far interference, each user is maintained can keep in the minimum standard of proper communication, so just maximally can reduce the interference to other users, thus improve power system capacity.

Current WCDMA system many uses close-loop power control, comprises inner-loop power control and open sea wharf two parts, as shown in Figure 1.Wherein, inner-loop power control adjusts transmitting power according to the difference request transmitting terminal of sir measurement value and sir target value (when sir measurement value is less than or equal to sir target value, TPC sends UP command " 1 "; Otherwise TPC sends down command " 0 "); Open sea wharf can the sir target value of guaranteed qos based on type of service and CRC check result or the error rate/Block Error Rate (BER/BLER) adjustment.

For F-DPCH channel, its close-loop power control similar.But because F-DPCH channel does not have chnnel coding and CRC check, therefore the aimed quality of its external circule power control of agreement clear stipulaties is the CER(order error rate of TPC command, Command Error Rate).F-DPCH channel is mainly used in the control information (TPC) of bearing bed 1, and frame structure as shown in Figure 2.Each length is that the radio frames of 10ms is divided into 15 time slots, each slot length 2560chip, and in each time slot, TPC bit number is 2, and the mapping relations of these two TPC bit and TPC command are as shown in table 1 below:

The mapping relations of table 1 TPC bit and TPC command

F-DPCH channel adjusts sir target value by the error rate CER and target CER comparing TPC command; Then TPC command is generated according to sir measurement value with comparing of sir target value.

Current CER statistics is based on the thought of the inconsistent method of bit: TPC bit value may be unknown when receiving, but in all TPC bit that same time slot receives, there is identical value, so whether unanimously can the error rate of statistics CER roughly according to the bit received, then, initial TPC command error rate CER is calculated according to formula (1);

$\mathrm{CER}=\frac{N_{\mathrm{Error}}}{N_{\mathrm{OLPC}\_T}}---\left(1\right)$

Current sir measurement is based on same thought: TPC bit value may be unknown when receiving, but has identical value in all TPC bit that same time slot receives.Therefore, by homophase (I) and orthogonal (Q) component being added, signal section can carry out relevant addition, and noise section carries out non-coherent additions, so just makes noise reduce and extract signal power; By I and Q component being subtracted each other, signal section is just cancelled out each other and leaves noise section.The soft bit demodulation result supposing i-th time slot TPC command is TPC _i, then the sir measurement value of i-th time slot is:

${\mathrm{SIR}}_i=\frac{{({\mathrm{TPC}}_{I,i}+{\mathrm{TPC}}_{Q,i})}^2/2}{{({\mathrm{TPC}}_{I,i}-{\mathrm{TPC}}_{Q,i})}^2}$

Wherein, TPC _i,ifor TPC _ii component, TPC _q,ifor TPC _iq component.

On the other hand, the statistical method of CER desired value that agreement specifies is hard decision statistical method: firmly sentence according to TPC command the statistics that result carries out CER.Suppose to have sent N in the outer shroud cycle _{oLPC_T}individual TPC command " 1 ", so the TPC command number of mistake is added up according to formula (2):

$N_{\mathrm{Error}}=\left\{\begin{array}{cc}{N}_{\mathrm{Error}}& {\mathrm{TPC}}_{I,i}+{\mathrm{TPC}}_{Q,i}<0\\ N_{\mathrm{Error}}+1& \mathrm{else}\end{array}\right.,i=\mathrm{1,2},...,N_{\mathrm{OLPC}\_T}---\left(2\right)$

Then TPC command error rate is calculated according to formula (1).

Obviously, this statistical method is different with current CER statistical method, and so use the method CER just cannot converge to the CER desired value that agreement specifies; In addition, because every time slot only has a TPC command, when declining serious, sir measurement value is inaccurate; Meanwhile, current scheme is when low signal-to-noise ratio, and sir measurement value is higher.

Summary of the invention

The object of the present invention is to provide a kind of Poewr control method and device of fractional dedicated physical channel, make the Poewr control method of fractional dedicated physical channel more accurate.

For solving the problems of the technologies described above, the invention provides a kind of Poewr control method of fractional dedicated physical channel, comprising following steps:

Terminal is by comparing the error rate CER of transmitting power control TPC command and adjusting signal interference ratio sir target value with reference to CER desired value; Wherein, be map gained by the order error rate CER desired value of the inconsistent method statistic gained of bit through mapping relations with reference to CER desired value, mapping relations are obtained by the emulation when identical SIR of the hard-decision method statistics CER desired value of gained and the CER desired value of the inconsistent method statistic gained of bit in advance;

Relatively the size of sir target value and sir measurement value generates TPC command.

Present invention also offers a kind of output control device of fractional dedicated physical channel, comprise:

Sir target value adjusting module, for the error rate CER by comparing transmitting power control TPC command with reference to CER desired value adjustment signal interference ratio sir target value; Wherein, be confirm gained by the order error rate CER desired value of the inconsistent method statistic gained of bit through mapping relations with reference to CER desired value, mapping relations are obtained by the emulation when identical SIR of the hard-decision method statistics CER desired value of gained and the CER desired value of the inconsistent method statistic gained of bit in advance;

TPC command generation module, generates TPC command for the sir target value after comparing the adjustment of sir target value adjusting module and the size of sir measurement value.

Embodiment of the present invention in terms of existing technologies, the main distinction is: utilize the mapping relations between the CER desired value of hard-decision method statistics gained and bit inconsistent method statistic gained CER desired value, the CER desired value of the latter's method statistic gained used for current scheme is mapped to former approach by these mapping relations and adds up the reference CER desired value obtained, the CER desired value namely making the CER desired value of current scheme gained can converge to agreement to specify, so also just can make the Poewr control method of fractional dedicated physical channel more accurate.

As further improvement, mapping relations are obtained by following sub-step:

A. transmitting terminal sends known training sequence;

B., when identical SIR, hard-decision method and the inconsistent method of bit is utilized to calculate CER desired value respectively;

C. by corresponding for above-mentioned two CER desired values;

The size of adjustment SIR, repeats steps A to C, obtains the mapping relations of one group of CER desired value.

The CER desired value of further restriction hard-decision method statistics gained and bit inconsistent method statistic gained CER desired value method for confirming mapping relation between are by relatively adopting the size of different calculation methods gained CER desired value to confirm to known training sequence.Make determined mapping relations more accurate, namely make the reference CER desired value of acquisition more close to the CER desired value that agreement specifies, make the Poewr control method of fractional dedicated physical channel more accurate further.

As further improvement, generate in the step of TPC command in the size of described sir target value and sir measurement value, comprise following sub-step:

Utilize multinomial to calibrate described sir measurement value, obtain the sir measurement value after calibrating;

The size of the sir measurement value after more described sir target value and described calibration generates TPC command.

Make sir measurement value more accurate, especially when low signal-to-noise ratio, sir measurement value is more accurate, improves the inner loop power control method precision of fractional dedicated physical channel further.

As further improvement, generate in the step of TPC command in the size of relatively sir target value and sir measurement value, comprise following sub-step:

The noise of N number of time slot is averaged, wherein, N be greater than 1 natural number;

Utilize average after noise calculation sir measurement value, obtain noise average after sir measurement value;

Calibrate described sir measurement value at the described multinomial that utilizes, obtain in the step of the sir measurement value after calibrating, the sir measurement value after utilizing multinomial average to described noise is calibrated, and obtains the sir measurement value after described calibration.

Sir measurement value through smoothing processing and polynomial calibration is more accurate, and especially when declining serious, sir measurement value is more accurate, improves the inner loop power control method precision of fractional dedicated physical channel further.

As further improvement, generate in the step of TPC command in the size of relatively sir target value and sir measurement value, comprise following sub-step:

The noise of N number of time slot is averaged, wherein, N be greater than 1 natural number;

Utilize average after noise calculation sir measurement value, obtain noise average after sir measurement value;

The size of the sir measurement value after more described sir target value and described noise are average generates TPC order.

Sir measurement value after level and smooth is more accurate, and especially when declining serious, sir measurement value is more accurate, improves the inner loop power control method precision of fractional dedicated physical channel further.

Accompanying drawing explanation

Fig. 1 is according to close-loop power control schematic diagram of the prior art;

Fig. 2 is according to F-DPCH channel frame structure of the prior art;

Fig. 3 is the outer-loop power controlling method flow chart of the fractional dedicated physical channel according to first embodiment of the invention;

Fig. 4 is the inner loop power control method flow chart of the fractional dedicated physical channel according to first embodiment of the invention;

Fig. 5 is the inner loop power control method flow chart of the fractional dedicated physical channel according to second embodiment of the invention;

Fig. 6 is the inner loop power control method flow chart of the fractional dedicated physical channel according to third embodiment of the invention;

Fig. 7 is the structural representation of the output control device of fractional dedicated physical channel according to four embodiment of the invention;

Fig. 8 is the structural representation of the output control device of fractional dedicated physical channel according to fifth embodiment of the invention;

Fig. 9 is the structural representation of the output control device of fractional dedicated physical channel according to sixth embodiment of the invention.

Embodiment

For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.But, persons of ordinary skill in the art may appreciate that in each execution mode of the present invention, proposing many ins and outs to make reader understand the application better.But, even without these ins and outs with based on the many variations of following execution mode and amendment, each claim of the application technical scheme required for protection also can be realized.

First execution mode of the present invention relates to a kind of fractional dedicated physical channel. Poewr control method, comprise outer-loop power controlling method (being called for short " external circule power control ") and inner loop power control method (being called for short " inner-loop power control "), wherein outer-loop power controlling method is as shown in Figure 3, and concrete steps are:

Step 301, statistics CER measured value, performs step 302 then.Namely add up the error rate CER of through-put power TPC command.

Step 302, is mapped as CER desired value with reference to CER desired value CER _refTarget, then perform step 303.Namely by CER desired value that mapping relations make the CER desired value of current scheme gained can converge to agreement to specify.

Specifically, mapping relations are for confirm in advance, and concrete steps are:

A. transmitting terminal sends known training sequence;

B., when identical SIR, hard-decision method and the inconsistent method of bit is utilized to calculate CER desired value respectively;

C. by corresponding for above-mentioned two CER desired values;

The size of adjustment SIR, repeats A to C, obtains the mapping relations of one group of CER desired value.

According to these mapping relations, the CER corresponding to CER desired value also just can be found out _refTarget, concrete numerical value is as shown in table 2 below, uses this CER in obvious outer-loop power controlling method _refTargetthan using, CER desired value is more accurate.

Table 2

CER desired value	CER RefTarget	CER desired value	CER RefTarget
				0.01	0.06	0.06	0.22
0.02	0.09	0.07	0.24
				0.03	0.12	0.08	0.26
0.04	0.15	0.09	0.29
				0.05	0.18	0.1	0.31

Here also it should be noted that, although step 301 and step 302 have ordinal relation on writing, in fact these two steps are concurrency relation.That is, first can pass through the mapping relations confirmed in advance, CER desired value is mapped as CER _refTarget, then add up CER measured value, the execution of step 303 can not be affected.

Step 303, compares CER measured value and CER _refTargetadjust sir target value.CER namely by obtaining in the CER measured value added up in comparison step 301 and step 302 _refTarget, adjust sir target value, specifically, when CER measured value is less than CER _refTargettime, lower sir target value, when CER measured value is more than or equal to CER _refTargettime, raise sir target value.The adjustment of sir target value can be made so more accurate, make the outer-loop power controlling method of fractional dedicated physical channel more accurate, furtherly, owing to needing in inner-loop power control to use sir target value, so the accuracy of sir target value also will affect the accuracy of inner-loop power control.To step 301 be returned afterwards, continue the external circule power control in next cycle.

As shown in Figure 4, concrete steps are as follows for the inner loop power control method of fractional dedicated physical channel:

Step 401, calculates sir measurement value, then performs step 402.

Step 402, compares sir measurement value and sir target value; If sir measurement value is less than or equal to sir target value, then perform step 403; If sir measurement value is greater than sir target value, then perform step 404.Specifically, be the sir target value after adjusting in the sir measurement value of real income and external circule power control step 303 compared here, compare generation obtain TPC command by size, this TPC order will be used to adjust transmitting power.

Step 403, TPC command is 1.That is, if sir measurement value is less than or equal to sir target value, TPC command is UP command.

Step 404, TPC command is 0.That is, if sir measurement value is greater than sir target value, TPC command is down command.

Embodiment of the present invention in terms of existing technologies, improve mainly for the CER desired value determination mode in external circule power control, the aimed quality of its external circule power control of agreement clear stipulaties is the error rate CER of TPC command, but in practice, the sequence of launching due to transmitting terminal is unknown, cannot according to said method calculate CER desired value, so by the inconsistent method of statistics bit in prior art, namely receive the inconsistent TPC command number of bit in same time slot and calculate CER desired value.Namely first add up an outer shroud cycle N _{oLPC_T}the TPC command number N that Nepit is inconsistent _error, then calculate initial TPC command error rate CER according to following formula (1), wherein N _{oLPC_T}rule of thumb can be set as 240.

$\mathrm{CER}=\frac{N_{\mathrm{Error}}}{N_{\mathrm{OLPC}\_T}}---\left(1\right)$

But the statistical method of the CER desired value that agreement specifies is hard-decision method: firmly sentence according to TPC command the statistics that result carries out CER, suppose to have sent N in the outer shroud cycle _{oLPC_T}individual TPC command " 1 ", so the TPC command number of mistake is added up according to formula (2):

$N_{\mathrm{Error}}=\left\{\begin{array}{cc}{N}_{\mathrm{Error}}& {\mathrm{TPC}}_{I,i}+{\mathrm{TPC}}_{Q,i}<0\\ N_{\mathrm{Error}}+1& \mathrm{else}\end{array}\right.,i=\mathrm{1,2},...,N_{\mathrm{OLPC}\_T}---\left(2\right)$

Then TPC command error rate is calculated according to formula (1).Obviously, this statistical method is different with CER statistical method in prior art, so the CER of use art methods gained just cannot converge to the CER desired value that agreement specifies, so according to the method in embodiment of the present invention, by mapping relations, the CER desired value of inconsistent for bit method gained can be confirmed as the reference CER desired value CER of hard-decision method _refTarget, the CER of the statistical method gained that the CER of art methods gained and agreement also just can be made to specify is consistent, makes the Poewr control method of fractional dedicated physical channel more accurate.

It should be noted that, above the step of various method divide, just in order to be described clearly, a step can be merged into when realizing or some step is split, be decomposed into multiple step, as long as comprise identical logical relation, all in the protection range of this patent; To adding inessential amendment in algorithm or in flow process or introducing inessential design, but the core design not changing its algorithm and flow process is all in the protection range of this patent.

Second execution mode of the present invention relates to a kind of Poewr control method of fractional dedicated physical channel equally, present embodiment has done further improvement on the first execution mode basis, main improvements are: in second embodiment of the invention, the noise of multiple time slot is averaged, adopt the noise calculation sir measurement value on average, make the measurement of noise more accurate, thus obviously reduce the problem measured when declining serious in prior art and forbidden.

Specifically, as shown in Figure 5, step 501, on average calculates sir measurement value afterwards to noise, then performs step 502.That is first moving average is carried out to the noise of multiple time slot in present embodiment, the noise calculation sir measurement after recycling is average, obtain noise average after sir measurement value.Make the measurement of noise more accurate, thus obviously reduce the problem measured when declining serious in prior art and forbidden.Specifically, be, according to formula (3), on average afterwards sir measurement value is calculated to noise:

${\mathrm{SIR}}_{N-1}^{\&prime;}=\left\{\begin{array}{cc}\frac{{({\mathrm{TPC}}_{I,N-1}+{\mathrm{TPC}}_{Q,N-1})}^2/2}{\frac{1}{N_{\mathrm{noise}}}\underset{i=1}{\overset{N_{\mathrm{noise}}}{\mathrm{\&Sigma;}}}{({\mathrm{TPC}}_{I,N-i}-{\mathrm{TPC}}_{Q,N-i})}^2}& N\&GreaterEqual;N_{\mathrm{noise}}\\ \frac{{({\mathrm{TPC}}_{I,N-1}+{\mathrm{TPC}}_{Q,N-1})}^2/2}{\frac{1}{N}\underset{i=1}{\overset{N}{\mathrm{\&Sigma;}}}{({\mathrm{TPC}}_{I,N-i}-{\mathrm{TPC}}_{Q,N-i})}^2}& N<N_{\mathrm{noise}}\end{array}\right.---\left(3\right)$

Wherein, N is the length of noise smoothing.For front N-1 sir measurement value, receive several time slot, then carry out the average of several time slot.Specifically, N is used to be 15 in present embodiment.

It should be noted that, because sir measurement value in prior art is the measured value utilizing each moment real-time, will make when low signal-to-noise ratio like this, sir measurement value is higher, and the sir measurement value in present embodiment on average calculates gained afterwards to N number of slotted noise, more accurately.

Also it should be noted that, the step 502 in present embodiment is similar to step 404 to the step 402 in the first execution mode to step 504, does not repeat them here.The sir measurement value utilizing formula (3) to calculate gained in step 502 compares the TPC command drawn with sir target value more accurate, the accuracy of further raising inner-loop power control, also just further increases the accuracy of the Poewr control method of fractional dedicated physical channel.

It should be noted that, above the step of various method divide, just in order to be described clearly, a step can be merged into when realizing or some step is split, be decomposed into multiple step, as long as comprise identical logical relation, all in the protection range of this patent; To adding inessential amendment in algorithm or in flow process or introducing inessential design, but the core design not changing its algorithm and flow process is all in the protection range of this patent.

Third embodiment of the invention relates to a kind of Poewr control method of fractional dedicated physical channel equally, present embodiment is on the second execution mode, done further improvement, main improvements are: in third embodiment of the invention, carrying out polynomial calibration to carrying out the sir measurement value that noise on average calculates afterwards in the second execution mode, having made the sir measurement value that obtains more accurate.

Specifically, as shown in Figure 6, the step 601 in the 3rd execution mode is similar to the step 501 in the second execution mode, does not repeat them here.

The step 602 of present embodiment, carries out polynomial calibration to sir measurement value, then performs step 603.Specifically, calibrating multinomial those of ordinary skill in the art used can according to the sir measurement value before calibration and the comparison gained of ideal value, that is, piecewise fitting (such as using MATLAB software to emulate) is carried out to the sir measurement value before calibration, all ideal value is approached after making each section of matching, certainly in theory, segments is more many more approaches ideal value, but segmentation is more also to calculating the problem bringing complexity to improve, so need the factor such as overall accuracy and complexity to judge polynomial segmentation in reality.

It should be noted that, be, according to formula (4), polynomial calibration is carried out to sir measurement value in present embodiment, divided four sections to calibrate specifically:

$\mathrm{SIR}=\left\{\begin{array}{cc}{f}_{\mathrm{cor}}\left({\mathrm{SIR}}^{\&prime;}\right)& \mathrm{if}{\mathrm{SIR}}^{\&prime;}<80.2949\\ {\mathrm{SIR}}^{\&prime;}& \mathrm{else}\end{array}\right.---\left(4\right)$

Wherein, f _cor() is calibration multinomial, and its definition is such as formula (5):

$f_{\mathrm{cor}}\left(x\right)=\left\{\begin{array}{cc}\underset{i=0}{\overset{2}{\mathrm{\&Sigma;}}}{c}_i{x}^i& x\&Element;(\mathrm{15.2967,80.2949}]\left(\mathrm{Column}1\right)\\ \underset{i=0}{\overset{2}{\mathrm{\&Sigma;}}}{c}_i{x}^i& x\&Element;\left(\mathrm{6.6455,15.2967}\right]\left(\mathrm{Column}2\right)\\ \underset{i=0}{\overset{2}{\mathrm{\&Sigma;}}}{c}_i{x}^i& x\&Element;\left(\mathrm{3.0761,6.6455}\right]\left(\mathrm{Column}3\right)\\ \underset{i=0}{\overset{2}{\mathrm{\&Sigma;}}}{c}_i{x}^i& x\&Element;\left[\mathrm{0.64,3.0761}\right]\left(\mathrm{Column}4\right)\end{array}\right.---\left(5\right)$

Wherein, concrete calibration factor is then the coefficient of each section of fitting function, and present embodiment calibration factor table used sees the following form 3:

Table 3 calibration factor table

Coefficient	Column1	Column2	Column3	Column4
					C 0	-0.3273	-0.689	-0.569	-0.5069
C 1	0.8281	0.8635	0.8389	0.7952
					C 2	0.0023	0.0013	0.0023	0.01

It should be noted that, above-mentioned polynomial demarcation interval and calibration factor are by acquired by emulation or experience.

Step 603 in present embodiment is similar to step 504 to the step 502 in the second execution mode to step 605, do not repeat them here, the sir measurement value after polynomial calibration and sir target value is namely utilized to compare, make the TPC command that obtains more accurate, the accuracy of further raising inner-loop power control, also just further increases the accuracy of the Poewr control method of fractional dedicated physical channel.

Four embodiment of the invention relate to a kind of output control device of fractional dedicated physical channel, and its syndeton as shown in Figure 7, specifically comprises:

Sir target value adjusting module, for the error rate CER by comparing transmitting power control TPC command with reference to CER desired value adjustment signal interference ratio sir target value; Wherein, be confirm gained by the order error rate CER desired value of the inconsistent method statistic gained of bit through mapping relations with reference to CER desired value, mapping relations are obtained by the emulation when identical SIR of the hard-decision method statistics CER desired value of gained and the CER desired value of the inconsistent method statistic gained of bit in advance.

TPC command generation module, generates TPC command for the sir target value after comparing the adjustment of sir target value adjusting module and the size of sir measurement value.

In terms of existing technologies, the main distinction and effect are embodiment of the present invention: present embodiment improves sir target value adjusting module, required CER desired value are confirmed as with reference to CER desired value CER through mapping relations _refTarget, the CER desired value making the CER desired value of current scheme gained can converge to agreement to specify, makes the Poewr control method of fractional dedicated physical channel more accurate.

Be not difficult to find, present embodiment is the system embodiment corresponding with the first execution mode, and present embodiment can be worked in coordination with the first execution mode and be implemented.The relevant technical details mentioned in first execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the relevant technical details mentioned in present embodiment also can be applicable in the first execution mode.

It is worth mentioning that, each module involved in present embodiment is logic module, and in actual applications, a logical block can be a physical location, also can be a part for a physical location, can also realize with the combination of multiple physical location.In addition, in order to outstanding innovative part of the present invention, the unit not too close with solving technical problem relation proposed by the invention is not introduced in present embodiment, but this does not show the unit that there is not other in present embodiment.

Fifth embodiment of the invention relates to a kind of output control device of fractional dedicated physical channel equally, 5th execution mode has done further improvement on the 4th execution mode basis, main improvements are: in four embodiment of the invention, the noise of multiple time slot is averaged, adopt the noise calculation sir measurement value on average, make the measurement of noise more accurate, thus obviously reduce the problem measured when declining serious in prior art and forbidden.

Specifically, as shown in Figure 8, in TPC command generation module, following submodule is contained:

The average submodule of noise, for being averaged to the noise of N number of time slot, wherein, N be greater than 1 natural number.

Sir measurement value obtains submodule, for utilizing the noise calculation sir measurement value on average, obtains the sir measurement value that noise is average.

Sir value comparison sub-module, the sir measurement value after the noise for sir measurement value being obtained submodule acquisition is average generates TPC command after comparing with sir target value.

Because the second execution mode and present embodiment are mutually corresponding, therefore present embodiment can be worked in coordination with the second execution mode and be implemented.The relevant technical details mentioned in second execution mode is still effective in the present embodiment, and the technique effect that can reach in this second embodiment can realize in the present embodiment too, in order to reduce repetition, repeats no more here.Correspondingly, the relevant technical details mentioned in present embodiment also can be applicable in the second execution mode.

Sixth embodiment of the invention relates to a kind of output control device of fractional dedicated physical channel equally, present embodiment is the further improvement done on the basis of the 5th execution mode, main improvements are: in sixth embodiment of the invention, carrying out polynomial calibration to carrying out the sir measurement value that noise on average calculates afterwards in the 5th execution mode, having made the sir measurement value that obtains more accurate.

Specifically, as shown in Figure 9, in TPC command generation module, also comprise sir measurement value calibration submodule, calibrate for the sir measurement value after utilizing the noise of multinomial to the acquisition of sir measurement value acquisition submodule average.

It should be noted that, the sir value comparison sub-module in present embodiment be by sir measurement value calibration submodule calibrate after sir measurement value compared with the size of sir target value after generate TPC.

Because the 3rd execution mode is mutually corresponding with present embodiment, therefore present embodiment can be worked in coordination with the 3rd execution mode and be implemented.The relevant technical details mentioned in 3rd execution mode is still effective in the present embodiment, and the technique effect that can reach in the third embodiment can realize in the present embodiment too, in order to reduce repetition, repeats no more here.Correspondingly, the relevant technical details mentioned in present embodiment also can be applicable in the 3rd execution mode.

Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiments of the invention, and in actual applications, various change can be done to it in the form and details, and without departing from the spirit and scope of the present invention.

Claims (9)

1. a Poewr control method for fractional dedicated physical channel, is characterized in that, comprises following steps:

Terminal is by comparing the error rate CER of transmitting power control TPC command and adjusting signal interference ratio sir target value with reference to CER desired value; Wherein, described is map gained by the order error rate CER desired value of the inconsistent method statistic gained of bit through mapping relations with reference to CER desired value, and described mapping relations are obtained by the emulation when identical SIR of the hard-decision method statistics CER desired value of gained and the CER desired value of the inconsistent method statistic gained of bit in advance;

The size of more described sir target value and sir measurement value generates TPC command.

2. the Poewr control method of fractional dedicated physical channel according to claim 1, is characterized in that, described mapping relations are obtained by following sub-step:

A. transmitting terminal sends known training sequence;

B., when described identical SIR, described hard-decision method and the inconsistent method of described bit is utilized to calculate CER desired value respectively;

C. by corresponding for above-mentioned two CER desired values;

The size of adjustment SIR, repeats described A to C, obtains the mapping relations of CER desired value described in a group.

3. the Poewr control method of fractional dedicated physical channel according to claim 1, is characterized in that, generates in the step of TPC command, comprise following sub-step in the size of described sir target value and sir measurement value:

Utilize multinomial to calibrate described sir measurement value, obtain the sir measurement value after calibrating;

The size of the sir measurement value after more described sir target value and described calibration generates TPC command.

4. the Poewr control method of fractional dedicated physical channel according to claim 3, is characterized in that, calibrates described sir measurement value at the described multinomial that utilizes, and before obtaining the step of the sir measurement value after calibrating, also comprises following sub-step:

The noise of N number of time slot is averaged, wherein, N be greater than 1 natural number;

Utilize average after noise calculation sir measurement value, obtain noise average after sir measurement value;

Calibrate described sir measurement value at the described multinomial that utilizes, obtain in the step of the sir measurement value after calibrating, the sir measurement value after utilizing multinomial average to described noise is calibrated, and obtains the sir measurement value after described calibration.

5. the Poewr control method of fractional dedicated physical channel according to claim 1, is characterized in that, generates in the step of TPC command, comprise following sub-step in the size of described sir target value and sir measurement value:

The noise of N number of time slot is averaged, wherein, N be greater than 1 natural number;

Utilize average after noise calculation sir measurement value, obtain noise average after sir measurement value;

The size of the sir measurement value after more described sir target value and described noise are average generates TPC command.

6. an output control device for fractional dedicated physical channel, is characterized in that, comprises:

Sir target value adjusting module, for the error rate CER by comparing transmitting power control TPC command with reference to CER desired value adjustment signal interference ratio sir target value; Wherein, described is confirm gained by the order error rate CER desired value of the inconsistent method statistic gained of bit through mapping relations with reference to CER desired value, and described mapping relations are obtained by the emulation when identical SIR of the hard-decision method statistics CER desired value of gained and the CER desired value of the inconsistent method statistic gained of bit in advance;

TPC command generation module, the size for the described sir target value after more described sir target value adjusting module adjustment and sir measurement value generates TPC command.

7. the output control device of fractional dedicated physical channel according to claim 6, is characterized in that, described TPC command generation module comprises following submodule:

Sir measurement value calibration submodule, for utilizing multinomial to calibrate described sir measurement value, obtains the sir measurement value after calibrating;

Sir value comparison sub-module, the size for the sir measurement value after the described calibration that more described sir measurement value calibration submodule obtains and described sir target value generates described TPC command.

8. the output control device of fractional dedicated physical channel according to claim 7, is characterized in that, also comprises following submodule in described TPC command generation module:

The average submodule of noise, for being averaged to the noise of N number of time slot, wherein, N be greater than 1 natural number;

Sir measurement value obtains submodule, for utilizing the described noise calculation sir measurement value on average, and the sir measurement value after acquisition noise is average;

Described sir measurement value calibration submodule also for utilize multinomial to described sir measurement value obtain described noise that submodule obtains average after sir measurement value calibrate, obtain the sir measurement value after described calibration.

9. the output control device of fractional dedicated physical channel according to claim 6, is characterized in that, described TPC command generation module comprises following submodule:

The average submodule of noise, for being averaged to the noise of N number of time slot, wherein, N be greater than 1 natural number;

Sir measurement value obtains submodule, for utilizing the noise calculation sir measurement value on average, and the sir measurement value after acquisition noise is average;

Sir value comparison sub-module, the sir measurement value after the described noise for described sir measurement value being obtained submodule acquisition is average generates described TPC command after comparing with described sir target value.