CN1996778A - A method and module for power control - Google Patents

Abstract

This invention relates to one WCDMA communication technique and to one power control method and module, wherein, the control method comprises the following steps: base station section sums up each operation phase user device response mixture repeat requires HARQ to determine correct rate or error rate; then controlling next operation phase load HARQ signal channel emission power according to last operation phase correct rate or error rate; the power control module comprises statistic unit and power control unit.

Description

A kind of Poewr control method and module

Technical field

The present invention relates to WCDMA (Wideband Code Division Multiple Access, the Wideband Code Division Multiple Access (WCDMA) inserts) communication technology, relate in particular to a kind of Poewr control method and module.

Background technology

In the WCDMA system, the effect of power control is under the situation that guarantees quality of service, and the up-downgoing transmitting power is adjusted to needed minimum degree.

E-HICH (Enhanced HARQ Indicator Channel, strengthen the HARQ indicating channel) be WCDMA FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) R6 (Release6, released version 6) the private downlink physical channel of a Xin Zeng fixed rate, it carries up E-DCH (Enhanced Dedicated Transport Channel, enhanced dedicated) HARQ confirms indication, be used to control HARQ (Hybrid Automatic Repeat Request mixes automatic repeat requests) process.At HSUPA (High Speed Uplink Packet Access, high speed uplink packet inserts) in, concerning each HARQ process, wait for the correct affirmation information that receives after sending packet, do not receive if the other side is correct, then retransmission data packet may if the other side correctly receives, then sends next new packet.

According to the 5.2.13 trifle of 3GPP (Third Generation Partnership Project, 3G (Third Generation) Moblie partner plan) agreement TS25.214, the power of E-HICH is controlled under the control of Node B.

At present, adopt and the similar method of Common transport channel, fixedly the transmitting power of E-HICH just adopts fixing power bias to come power is controlled.The shortcoming of this scheme is: should guarantee that E-HICH (as cell edge) under relatively poor environment still keeps certain demodulation performance when adopting the constant power biasing, so the method has caused the waste of power resource.

Also adopt the power control strategy of following DPCCH (Dedicated Physical Control Channel, Dedicated Physical Control Channel) now, E-HICH is set and follows the power bias between the DPCCH to come power is controlled.The mode of this scheme relative fixed power is relatively saved power, but shortcoming is to realize more complicated.

Summary of the invention

The invention provides a kind of Poewr control method and module, in order to solve the problem of effective utilization of power resource that can not when reducing implementation complexity, realize carrying HARQ is confirmed the channel of indication in the prior art.

In order to solve the problems of the technologies described above, the invention provides a kind of channel transmitting power control method of mixing automatic repeat requests indication of carrying, may further comprise the steps:

Accuracy or the error rate that user device responsive is mixed automatic repeat requests affirmation indication in each operation phase added up in A, base station segmentation;

B, base station are according to the described accuracy of last operation phase statistics or the channel transmitting power of the described affirmation indication of carrying in the adjacent next operation phase of error rate control.

Further, said method also can have following characteristics: the number of times that sends continuously described affirmation indication according to the base station is divided the described operation phase, and wherein, to send the total degree of described affirmation indication be set point in the base station in each operation phase.

Further, said method also can have following characteristics: send continuously according to the base station and confirm in the described affirmation indication that the number of times of replying ACK divides the described operation phase, wherein, to send the total degree of described ACK be set point in the base station in each operation phase.

Further, said method also can have following characteristics: according to periodically dividing the described operation phase running time of setting.

Further, said method also can have following characteristics: in the described steps A, what the base station was added up is accuracy or the error rate of ACK in the described affirmation indication of user device responsive.

Further, said method also can have following characteristics: the number of times that sends continuously NACK in the described affirmation indication according to the base station is divided the described operation phase, and wherein, the base station sends described NACK and confirms that the total degree of replying is a set point in each operation phase.

Further, said method also can have following characteristics: in the described steps A, what the base station was added up is accuracy or the error rate of NACK in the described affirmation indication of user device responsive.

Further, said method also can have following characteristics: send in the described affirmation indication total degree of ACK and NACK according to the base station and divide the described operation phase, wherein, the base station sends described ACK and NACK and confirms that the total degree of replying is a set point in each operation phase.

Further, said method also can have following characteristics: in the described steps A, base station statistics be accuracy or the error rate of ACK and NACK in the described affirmation indication of user device responsive.

Further, said method also can have following characteristics: in the described steps A, the base station judges that the method whether subscriber equipment correctly responds described affirmation indication is:

The base station if receive the new data that subscriber equipment sends, judges that then this secondary response of subscriber equipment is correct after subscriber equipment sends ACK in the described affirmation indication, if receive the data that subscriber equipment repeats to send, then judge this secondary response of subscriber equipment mistake;

The base station if receive the data that subscriber equipment repeats to send, judges that then this secondary response of subscriber equipment is correct after subscriber equipment sends NACK in the described affirmation indication, if receive the new data that subscriber equipment sends, then judge this secondary response of subscriber equipment mistake.

Further, said method also can have following characteristics:

In the described steps A, statistics be that user device responsive is mixed the accuracy that automatic repeat requests is confirmed indication;

Among the described step B, when described accuracy during less than first thresholding set, the base station promotes the channel transmitting power of the described affirmation indication of carrying, otherwise the base station reduces the channel transmitting power of the described affirmation indication of carrying; Perhaps, when described accuracy during less than second thresholding set, the base station promotes the channel transmitting power of the described affirmation indication of carrying, when described accuracy when setting the 3rd thresholding, the base station reduces the channel transmitting power of the described affirmation indication of carrying, otherwise the base station keeps the channel transmitting power of the described affirmation indication of carrying constant.

Further, said method also can have following characteristics:

In the described steps A, statistics be that user device responsive is mixed the error rate that automatic repeat requests is confirmed indication;

Among the described step B, when described error rate during greater than the 4th thresholding set, the base station promotes the channel transmitting power of the described affirmation indication of carrying, otherwise the base station reduces the channel transmitting power of the described affirmation indication of carrying; Perhaps, when described error rate during greater than the 5th thresholding set, the base station promotes the channel transmitting power of the described affirmation indication of carrying, when described accuracy when setting the 6th thresholding, the base station reduces the channel transmitting power of the described affirmation indication of carrying, otherwise the base station keeps the channel transmitting power of the described affirmation indication of carrying constant.

Further, said method also can have following characteristics: the base station sends the automatic repeat requests affirmation of mixing indication by the private downlink physical channel of fixed rate to subscriber equipment, among the described step B, the transmitting power that private downlink physical channel described in the adjacent next operation phase is controlled according to the accuracy or the error rate of the described affirmation indication of last operation phase statistics in the base station.

The present invention also provides the power control module in a kind of base station, comprises statistic unit and power control unit, wherein:

Described statistic unit is used for segmentation and adds up accuracy or the error rate that each operation phase user device responsive is mixed automatic repeat requests affirmation indication;

Described power control unit is used for according to the described accuracy of last operation phase statistics or the channel transmitting power of the described affirmation indication of the adjacent next operation phase carrying of error rate control.

Beneficial effect of the present invention is as follows:

Because user device responsive HARQ confirms the accuracy of indication, can reflect the channel circumstance that sends this affirmation indication, when channel circumstance is abominable, the channel decoding probability that sends this affirmation indication reduces, UE can reduce the response accuracy of this affirmation indication, otherwise the response accuracy of this affirmation indication can rise.The present invention makes full use of above-mentioned accuracy the channel transmitting power of carrying this affirmation indication is controlled, this confirms the channel transmitting power of indication to promote carrying when channel circumstance is abominable, when channel circumstance is good, this confirms the channel transmitting power of indication to reduce carrying, thereby realizes the effective utilization to power resource.In like manner also can control, realize effective utilization power resource to the channel transmitting power of carrying this affirmation indication according to error rate.

Simultaneously, the present invention only controls power by simple operation, and is easy to be reliable, realizes easily.

Description of drawings

Fig. 1 is the information interaction schematic diagram between UE and Node B under the working mechanism of HSUPA;

Fig. 2 carries out the flow chart of power control for the embodiment of the invention one;

Fig. 3 is the block diagram of power control module in the embodiment of the invention one base station;

Fig. 4 carries out the flow chart of power control for the embodiment of the invention five.

Embodiment

The present invention program's thought is: Node B (base station) adds up (the User Equipment of UE in each operation phase stage by stage, subscriber equipment) response accuracy or the error rate that affirmation is indicated to HARQ, controlled the transmitting power of adjacent next operation phase E-HICH then according to the statistical value of a last operation phase, realization is carried out the purpose of transmitting power control at a slow speed to E-HICH, among the present invention, the division methods of operation phase mainly contains two kinds, the first is divided according to sending out the number of times that HARQ confirms indication, and it two is according to periodically dividing running time.

As shown in Figure 1, working mechanism according to HSUPA, UE is by up E-DPDCH (EnhancedDedicated Physical Data Channel, strengthen Dedicated Physical Data Channel) the transmission high-speed data, NodeB confirms indication to UE by E-HICH channel feedback HARQ, when UE detects ACK (Acknowledgement confirms to reply), UE thinks Node B correct decoding, just continues the data of sending out new; When detecting NACK (Not Acknowledgement, non-affirmation is replied) or DTX (Discontinuous Transmission, discontinuous transmission), then retransmit.

Below in conjunction with drawings and Examples, on the basis of the working mechanism of above-mentioned HSUPA, the present invention is further described.

Embodiment one

Confirm that according to HARQ indication sends number of times and divides the operation phase in the present embodiment, NodeB sets and sends out the total degree that HARQ confirms indication in each operation phase, and in each operation phase, add up NodeB respectively and send out HARQ affirmation indication number of times and the UE correct number of times of response that affirmation is indicated to HARQ, when a HARQ who reaches this setting confirms the indication number of times, the HARQ that sends out that calculates this setting confirms that UE is to the response accuracy of ACK and NACK in the indication number of times, and the E-HICH transmitting power of next operation phase is controlled according to this response accuracy, above-mentioned power control flow specifically may further comprise the steps as shown in Figure 2:

Step S11, NodeB will send out HARQ and confirm that the indication number of times adds 1 at every turn after UE sends HARQ and confirms indication;

Step S12 judges this HARQ confirms whether the indication number of times reaches a HARQ affirmation indication number of times of setting, if carry out step S14; Otherwise, carry out step S13;

Step S13, NodeB judges whether this response is correct after receiving the response of UE to this HARQ affirmation indication, if UE is confirmed that to HARQ the correct number of times of response of indication adds 1, finishes; Otherwise, directly finish;

E-HICH is during from different sub-district, and HARQ confirms that the mapping mode of indication sees Table 1.

Table 1

Order	HARQ confirms indication
		ACK	+1
NACK (the Radio Link collection that does not comprise service E-DCH sub-district)	0
		NACK (the Radio Link collection that comprises service E-DCH sub-district)	?-1

E-HICH is from the DCH Radio Link collection that does not comprise service E-DCH sub-district, and ACK is mapped as 1, and NACK and DTX are mapped as 0.At this moment, two kinds of situations are arranged during the UE mistake in judgment:

ACK → NACK, NodeB send out ACK and represent correct decoding, and UE but is judged to NACK, proceeds data re-transmission;

NACK → ACK, NodeB send out NACK and represent decoding error, and UE but is judged to ACK, the data of sending out new.

E-HICH comes the DCH Radio Link collection of self-contained service E-DCH sub-district, and ACK is mapped as 1, and NACK is mapped as-1, and DTX is mapped as 0.At this moment, two kinds of situations are arranged during the UE mistake in judgment:

ACK → NACK/DTX, NodeB send out ACK and represent correct decoding, and UE but is judged to NACK/DTX, proceeds data re-transmission;

NACK → ACK, NodeB send out NACK and represent decoding error, and UE but is judged to ACK, the data of sending out new.

In this step, go up loaded information, know that UE is in the data that retransmit or send out new according to up E-DPCCH (Enhanced Dedicated Phsical ControlChannel strengthens Dedicated Physical Control Channel); According to the UE of knowing is to retransmit or judging in the data of sending out new whether UE is correct to the response of ACK, if correct then UE is confirmed that to HARQ the correct number of times of response of indication adds 1.

Above-mentioned E-DPCCH is the newly-increased physical channel that is used for sending the control information of following E-DCH of WCDMA FDD R6.According to 4.9 trifles of 3GPP agreement TS25.212, following message sends in the mode of E-DPCCH:

-RSN (Retransmission Sequence Number, re-transmission sequence number): X _{Rsn, 1}, X _{Rsn, 2}

-E-TFCI (Enhanced Transport Format Combination Indicator strengthens the transformat combination indication) information: X _{Tfci, 1}, X _{Tfci, 2}..., X _{Tfci, 7}

-" Happy " bit: x _{H, 1}

Wherein, RSN length is 2 bits, and the redundancy versions and the auxiliary NodeB that are used to indicate each HARQ to send carry out cache management.The RSN value of corresponding E-DCH transmission block initialization is 0; Retransmit the first time to this transmission block, and the RSN value is 1; To retransmitting for the second time, the RSN value is 2; Greater than 2 times re-transmission, this value is 3.

As seen, Node B can judge that UE is in the data that retransmit or send out new by E-DPCCH is deciphered: after E-DPCCH is deciphered, if RSN equals 0, then think the data that UE is sending out new; RSN is not 0, and then UE is retransmitting.

Step S14, NodeB judges whether this response is correct after receiving the response of UE to this HARQ affirmation indication, if UE is confirmed that to HARQ the correct number of times of response of indication adds 1; Otherwise, directly carry out step S15;

Step S15 confirms that according to the HARQ that sends out that HARQ confirms indication number of times and setting that sends out that sets UE in the indication number of times confirms to HARQ that the correct number of times of response of indication calculates at the HARQ that sends out that sets and confirms that UE in the indication number of times confirms the response accuracy of indication to HARQ;

The formula that calculates described response accuracy in the present embodiment is:

$P_{\mathrm{correct}}=\frac{N_{\mathrm{ACK}\→\mathrm{ACK}+\mathrm{NACK}\→\mathrm{NACK}}}{N}$

N wherein _{ACK → ACK+NACK → NACK}The expression UE correct number of times of response that affirmation is indicated to HARQ, _{ACK → ACK}UE sent new data when expression NodeB sent out ACK; _{NACK → NACK}UE retransmitted when expression NodeB sent out NACK; N is that NodeB sends out the number of times that HARQ confirms indication.

Step S16, NodeB confirm the response accuracy P of indication to HARQ according to above-mentioned UE _CorrectE-HICH transmitting power to the next operation phase is controlled, and will send number of times, the UE correct number of times zero clearing of response that affirmation is indicated to HARQ that HARQ confirms indication.

Present embodiment is according to P _CorrectWhen the E-HICH transmitting power is controlled, carry out according to following principle:

Set a thresholding P _Target1, work as P _Correct＜P _Target1The time, NodeB is with the transmitting power rising Δ of E-HICH _{E-hich, up}Otherwise NodeB is with the transmitting power decline Δ of E-HICH _{E-hich, down}This thresholding P _Target1Can draw by empirical value.The power bias here is to adjust for benchmark carries out power with descending P-CPICH (Primary Common PilotChannel, Primary Common Pilot Channel).

Above-mentioned power is controlled in the concrete enforcement can multiple variation, here with according to P _CorrectThe situation that the E-HICH transmitting power is controlled is that example describes.For example, can set thresholding P _Target2And P _Target3, work as P _Correct〉=P _Target2The time, NodeB is with the transmitting power decline Δ of E-HICH _{E-hich, down}Work as P _Correct＜P _Target3The time, NodeB is with the transmitting power rising Δ of E-HICH _{E-hich, up}, work as P _Target2＞P _Correct〉=P _Target3The time, keep the transmitting power of E-HICH constant, wherein, P _Target2＞P _Target3Perhaps, can set a plurality of threshold level, when this response accuracy very low, when promptly error situation is relatively serious, the transmitting power that disposable rising is bigger; When this response accuracy is very high, the big transmitting power of disposable reduction.

Infer easily, present embodiment can carry out following variation: when a HARQ who reaches this setting confirmed the indication number of times, NodeB calculated the UE response error rate that affirmation is indicated to HARQ by following formula:

$P_{\mathrm{error}}=1-\frac{N_{\mathrm{ACK}\→\mathrm{ACK}+\mathrm{NACK}\→\mathrm{NACK}}}{N}$

N wherein _{ACK → ACK+NACK → NACK}The expression UE correct number of times of response that affirmation is indicated to HARQ, _{ACK → ACK}UE sent new data when expression NodeB sent out ACK; _{NACK → NACK}UE retransmitted when expression NodeB sent out NACK; N is that NodeB sends out the number of times that HARQ confirms indication.

And according to this error rate P _ErrorThe E-HICH transmitting power is controlled, and this control principle is:

Set a thresholding P _Target1', work as P _Error＞P _Target1' time, NodeB is with the transmitting power rising Δ of E-HICH _{E-hich, up}Otherwise NodeB is with the transmitting power decline Δ of E-HICH _{E-hich, down}

Perhaps, set thresholding P _Target2' and P _Target3', work as P _Error＞P _Target2' time, NodeB is with the transmitting power rising Δ of E-HICH _{E-hich, up}Work as P _Error≤ P _Target3' time, NodeB is with the transmitting power decline Δ of E-HICH _{E-hich, down}, work as P _Target2' 〉=P _Error＞P _Target3' time, keep the transmitting power of E-HICH constant, wherein, P _Target2'＞P _Target3'.Perhaps, can set a plurality of threshold level, when this response error rate is very high, the transmitting power that disposable rising is bigger; When this response error rate is very low, the big transmitting power of disposable reduction.

Fig. 3 shows the power control module in the present embodiment base station, and as shown in the figure, this power control module comprises statistic unit and power control unit, wherein:

Statistic unit is used for segmentation and adds up accuracy or the error rate that each operation phase user device responsive HARQ confirms indication;

Power control unit is used for confirming the accuracy of indication or the transmitting power of the adjacent next operation phase E-HICH of error rate control according to the user device responsive HARQ that the last operation phase that statistic unit obtains is added up.

Embodiment two

Confirm that according to HARQ indication sends number of times and divides the operation phase in the present embodiment, NodeB sets and sends out the total degree that HARQ confirms indication in each operation phase, and in each operation phase, add up NodeB respectively and send out HARQ affirmation indication number of times and the UE response errors number that affirmation is indicated to HARQ, when a HARQ who reaches this setting confirms the indication number of times, the HARQ that sends out that NodeB calculates this setting confirms that UE confirms that to HARQ the response errors number of indication calculates its response error rate in the indication number of times, and this computing formula is:

$P_{\mathrm{error}}=\frac{N_{\mathrm{ACK}\→\mathrm{NACK}/\mathrm{DTX}+\mathrm{NACK}\→\mathrm{ACK}}}{N}$

N wherein _{ACK → NACK/DTX+NACK → ACK}Expression UE is to the response errors number of HARQ affirmation indication, wherein _{ACK → NACK/DTX}But expression NodeB sends out ACK UE and but proceeds to retransmit, _{NACK → ACK}But expression NodeB sends out the data that NACK UE but sends out new; N is that NodeB sends out the number of times that HARQ confirms indication.

Perhaps, when a HARQ who reaches this setting confirmed the indication number of times, NodeB calculated the UE response accuracy that affirmation is indicated to HARQ:

$P_{\mathrm{correct}}=1-\frac{N_{\mathrm{ACK}\→\mathrm{NACK}/\mathrm{DTX}+\mathrm{NACK}\→\mathrm{ACK}}}{N}$

N wherein _{ACK → NACK/DTX+NACK → ACK}Expression UE is to the response errors number of HARQ affirmation indication, wherein _{ACK → NACK/DTX}But expression NodeB sends out ACK UE and but proceeds to retransmit, _{NACK → ACK}But expression NodeB sends out the data that NACK UE but sends out new; N is that NodeB sends out the number of times that HARQ confirms indication.

After obtaining above-mentioned response accuracy or error rate, the E-HICH transmitting power of sending out in the HARQ affirmation indication number of times of next one setting is controlled according to this response accuracy or error rate.

Embodiment three

Confirm that according to HARQ indication sends number of times and divides the operation phase in the present embodiment, NodeB sets and sends out the total degree that HARQ confirms indication in each operation phase, and in each operation phase, add up NodeB respectively and send out HARQ and confirm the indication number of times, send out ACK number and UE the correct number of times of response ACK, when a HARQ who reaches this setting confirms the indication number of times, the HARQ that sends out that calculates this setting confirms that UE is to the response accuracy of ACK in the indication number of times, and this computing formula is:

$P_{\mathrm{correct}}=\frac{N_{\mathrm{ACK}\→\mathrm{ACK}}}{N_{\mathrm{ACK}}}$

N wherein _{ACK → ACK}UE sends the number of times of new data when sending out ACK for NodeB; N _ACKSend out the number of times of ACK for NodeB.

Perhaps, when a HARQ who reaches this setting confirms the indication number of times, calculate the response error rate of UE to ACK, this computing formula is:

$P_{\mathrm{error}}=1-\frac{N_{\mathrm{ACK}\→\mathrm{ACK}}}{N_{\mathrm{ACK}}}$

N wherein _{ACK → ACK}UE sends the number of times of new data when sending out ACK for NodeB; N _ACKSend out the number of times of ACK for NodeB.

After obtaining above-mentioned response accuracy or error rate, the E-HICH transmitting power of sending out in the HARQ affirmation indication number of times of next one setting is controlled according to this response accuracy or error rate.

Infer easily, present embodiment can carry out that following variation: NodeB adds up respectively is that NodeB sends out HARQ and confirms the indication number of times, sends out ACK number and the UE response errors number to ACK, when a HARQ who reaches this setting confirms the indication number of times, the HARQ that sends out that calculates this setting confirms that UE is to the response error rate of ACK in the indication number of times, and this computing formula is:

$P_{\mathrm{error}}=\frac{N_{\mathrm{ACK}\→\mathrm{NACK}/\mathrm{DTX}}}{N_{\mathrm{ACK}}}$

N wherein _{ACK → NACK/DTX}, NodeB but proceeds the number of times that retransmits for but sending out ACK UE; N _ACKSend out the number of times of ACK for NodeB.

Perhaps, when a HARQ who reaches this setting confirms the indication number of times, calculate the response accuracy of UE to ACK, this computing formula is:

$P_{\mathrm{correct}}=1-\frac{N_{\mathrm{ACK}\→\mathrm{NACK}/\mathrm{DTX}}}{N_{\mathrm{ACK}}}$

N wherein _{ACK → NACK/DTX}, NodeB but proceeds the number of times that retransmits for but sending out ACK UE; N _ACKSend out the number of times of ACK for NodeB.

Embodiment four

Confirm that according to HARQ indication sends number of times and divides the operation phase in the present embodiment, NodeB sets and sends out the total degree that HARQ confirms indication in each operation phase, and in each operation phase, add up NodeB respectively and send out HARQ and confirm the indication number of times, send out NACK number and UE the correct number of times of response NACK, when number of times was indicated in a HARQ affirmation that reaches this setting, the HARQ that sends out that calculates this setting confirmed to indicate response accuracy or the error rate of the interior UE of number of times to NACK.Perhaps, NodeB adds up NodeB respectively and sends out HARQ and confirm the indication number of times, send out NACK number and the UE response errors number to NACK, when number of times was indicated in a HARQ affirmation that reaches this setting, the HARQ that sends out that calculates this setting confirmed to indicate response accuracy or the error rate of the interior UE of number of times to NACK.And the HARQ that sends out that the next one is set according to this response accuracy or error rate confirms that the E-HICH transmitting power in the indication number of times controls.

Embodiment five

Confirm that according to HARQ the ACK in the indication sends the number of times division operation phase in the present embodiment, NodeB sets and sends out ACK number in each operation phase, and in each operation phase, add up NodeB respectively and send out ACK number and UE the correct number of times of response ACK, send out ACK time when several what reach this setting, what calculate this setting sends out ACK interior UE of number response accuracy to ACK, according to this response accuracy the E-HICH transmitting power of next operation phase is controlled, above-mentioned power control flow specifically may further comprise the steps as shown in Figure 4:

When step S21, NodeB confirm to be designated as ACK at the HARQ that sends to UE at every turn, will send out ACK number and add 1;

Step S22 judges whether this ACK time number reaches ACK the number of sending out of setting, if carry out step S24; Otherwise, carry out step S23;

Step S23, NodeB judge whether this response is correct after receiving the response of UE to this ACK, if, UE is added 1 to the correct number of times of response of ACK, finish; Otherwise directly finish;

Step S24, NodeB judge whether this response is correct after receiving the response of UE to this ACK, if UE is added 1 to the correct number of times of response of ACK;

Step S25, according to set send out ACK number and set send out ACK interior UE of number to the correct number of times calculating of response of ACK in ACK time number of setting UE to the response accuracy of ACK;

Step S26, NodeB controls the E-HICH transmitting power of next operation phase the response accuracy of ACK according to above-mentioned UE, and will send out the correct number of times zero clearing of response to ACK of ACK number, UE.

Infer easily, present embodiment can carry out following variation: send out ACK time when several what reach this setting, send out ACK number and UE according to NodeB and send out ACK several UE response error rate, and the E-HICH transmitting power of next one operation phase is controlled according to this response error rate to ACK to what the correct number of times of response of ACK calculated this setting.

Embodiment six

Confirm that according to HARQ the ACK in the indication sends the number of times division operation phase in the present embodiment, NodeB sets one and sends out ACK number, and statistics NodeB sends out ACK number and the UE response errors number to ACK, send out ACK time when several what reach this setting, what calculate this setting sends out ACK interior UE of number response accuracy to ACK, perhaps, send out ACK time when severals, calculate the response error rate of the ACK time interior UE of number of this setting ACK what reach this setting.And the E-HICH transmitting power of next operation phase is controlled according to this response accuracy or error rate.

Embodiment seven

Confirm that according to HARQ the NACK in the indication sends the number of times division operation phase in the present embodiment, NodeB sets and sends out NACK number in each operation phase, and add up NodeB respectively in each operation phase and send out NACK number and UE the correct number of times of response NACK, send out NACK time when severals what reach this setting, calculate response accuracy or the error rate of the NACK time interior UE of number of this setting NACK.Perhaps NodeB statistics is that NodeB sends out NACK number and the UE response errors number to NACK, sends out NACK time when several what reach this setting, calculates response accuracy or the error rate of the NACK time interior UE of number of this setting to NACK.And the E-HICH transmitting power of next operation phase is controlled according to this response accuracy or error rate.

Embodiment eight

In the present embodiment, NodeB sets a measurement period, and in each measurement period respectively statistics send out ACK number and UE the correct number of times of response to ACK, this measurement period then after, calculate response accuracy or the error rate of the interior UE of this setting measurement period, the E-HICH transmitting power in next measurement period is controlled according to this response accuracy or error rate to ACK.

Wherein, NodeB will send out ACK number and add 1 at every turn after UE sends ACK; After receiving the response of UE to ACK at every turn, judge whether this response is correct, if correct, then UE is added 1 to the correct number of times of response of ACK.

When set measurement period then after, NodeB is according to above-mentioned ACK number and the UE correct number of times of response to ACK, calculate and set response accuracy or the error rate of the interior UE of measurement period ACK, according to this response accuracy or error rate the E-HICH transmitting power is controlled then, and will be sent out correct number of times of response or the errors number zero clearing of ACK number, UE ACK.

Infer easily, present embodiment can carry out following variation: NodeB statistics is to send out ACK number and the UE response errors number to ACK, this measurement period then after, calculate response accuracy or the error rate of the interior UE of this setting measurement period, the E-HICH transmitting power in next measurement period is controlled according to this response accuracy or error rate to ACK.

Embodiment nine

In the present embodiment, NodeB sets a measurement period, and in each measurement period respectively statistics send out NACK number and UE the correct number of times of response to NACK, this measurement period then after, calculate response accuracy or the error rate of the interior UE of this setting measurement period to NACK.Perhaps, statistics is sent out NACK number and UE to the response errors number of NACK, when reaching this measurement period, calculates response accuracy or the error rate of the interior UE of this setting measurement period to NACK.And the E-HICH transmitting power in next measurement period is controlled according to above-mentioned response accuracy or error rate.

Embodiment ten

In the present embodiment, NodeB sets a measurement period, and in each measurement period, add up respectively and send out HARQ affirmation indication number of times and the UE correct number of times of response that affirmation is indicated to HARQ, this measurement period then after, calculate UE affirmation is indicated to HARQ response accuracy or error rate in this setting measurement period, the E-HICH transmitting power in next measurement period is controlled according to this response accuracy or error rate.

Wherein, NodeB will send out HARQ and confirm that the indication number of times adds 1 at every turn after UE sends HARQ and confirms indication; After receiving that at every turn UE confirms the response of indication to HARQ, judge whether this response is correct, if UE is confirmed that to HARQ the correct number of times of response of indication adds 1.

When set measurement period then after, NodeB confirms that according to above-mentioned HARQ indication number of times and UE confirm the correct number of times of response of indication to HARQ, calculate and set UE affirmation is indicated to HARQ response accuracy or error rate in the measurement period, according to this response accuracy or error rate the E-HICH transmitting power is controlled then, and will be sent out HARQ and confirm that indication number of times, UE confirm the correct number of times of response or the errors number zero clearing of indication to HARQ.

Infer easily, what present embodiment can carry out following variation: NodeB statistics is to send out HARQ to confirm that indication number of times and UE confirm the response errors number of indication to HARQ, this measurement period then after, calculate UE affirmation is indicated to HARQ response accuracy or error rate in this setting measurement period, the E-HICH transmitting power in next measurement period is controlled according to this response accuracy or error rate.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (14)

1, a kind of channel transmitting power control method of mixing automatic repeat requests indication of carrying is characterized in that, may further comprise the steps:

Accuracy or the error rate that user device responsive is mixed automatic repeat requests affirmation indication in each operation phase added up in A, base station segmentation;

B, base station are according to the described accuracy of last operation phase statistics or the channel transmitting power of the described affirmation indication of carrying in the adjacent next operation phase of error rate control.

2, the method for claim 1 is characterized in that, the number of times that sends continuously described affirmation indication according to the base station is divided the described operation phase, and wherein, to send the total degree of described affirmation indication be set point in the base station in each operation phase.

3, the method for claim 1 is characterized in that, sends continuously according to the base station and confirms in the described affirmation indication that the number of times of replying ACK divides the described operation phase, and wherein, to send the total degree of described ACK be set point in the base station in each operation phase.

4, the method for claim 1 is characterized in that, according to periodically dividing the described operation phase running time of setting.

As claim 2,3 or 4 described methods, it is characterized in that 5, in the described steps A, what the base station was added up is accuracy or the error rate of ACK in the described affirmation indication of user device responsive.

6, the method for claim 1 is characterized in that, the number of times that sends continuously NACK in the described affirmation indication according to the base station is divided the described operation phase, and wherein, the base station sends described NACK and confirms that the total degree of replying is a set point in each operation phase.

As claim 2,4 or 6 described methods, it is characterized in that 7, in the described steps A, what the base station was added up is accuracy or the error rate of NACK in the described affirmation indication of user device responsive.

8, the method for claim 1, it is characterized in that, send in the described affirmation indication total degree of ACK and NACK according to the base station and divide the described operation phase, wherein, the base station sends described ACK and NACK confirms that the total degree of replying is a set point in each operation phase.

9, as claim 2,4 or 8 described methods, it is characterized in that, in the described steps A, base station statistics be accuracy or the error rate of ACK and NACK in the described affirmation indication of user device responsive.

10, the method for claim 1 is characterized in that, in the described steps A, the base station judges that the method whether subscriber equipment correctly responds described affirmation indication is:

The base station if receive the new data that subscriber equipment sends, judges that then this secondary response of subscriber equipment is correct after subscriber equipment sends ACK in the described affirmation indication, if receive the data that subscriber equipment repeats to send, then judge this secondary response of subscriber equipment mistake;

The base station if receive the data that subscriber equipment repeats to send, judges that then this secondary response of subscriber equipment is correct after subscriber equipment sends NACK in the described affirmation indication, if receive the new data that subscriber equipment sends, then judge this secondary response of subscriber equipment mistake.

11, the method for claim 1 is characterized in that,

In the described steps A, statistics be that user device responsive is mixed the accuracy that automatic repeat requests is confirmed indication;

Among the described step B, when described accuracy during less than first thresholding set, the base station promotes the channel transmitting power of the described affirmation indication of carrying, otherwise the base station reduces the channel transmitting power of the described affirmation indication of carrying; Perhaps, when described accuracy during less than second thresholding set, the base station promotes the channel transmitting power of the described affirmation indication of carrying, when described accuracy when setting the 3rd thresholding, the base station reduces the channel transmitting power of the described affirmation indication of carrying, otherwise the base station keeps the channel transmitting power of the described affirmation indication of carrying constant.

12, the method for claim 1 is characterized in that,

In the described steps A, statistics be that user device responsive is mixed the error rate that automatic repeat requests is confirmed indication;

Among the described step B, when described error rate during greater than the 4th thresholding set, the base station promotes the channel transmitting power of the described affirmation indication of carrying, otherwise the base station reduces the channel transmitting power of the described affirmation indication of carrying; Perhaps, when described error rate during greater than the 5th thresholding set, the base station promotes the channel transmitting power of the described affirmation indication of carrying, when described accuracy when setting the 6th thresholding, the base station reduces the channel transmitting power of the described affirmation indication of carrying, otherwise the base station keeps the channel transmitting power of the described affirmation indication of carrying constant.

13, the method for claim 1, it is characterized in that, the base station sends the automatic repeat requests affirmation of mixing indication by the private downlink physical channel of fixed rate to subscriber equipment, among the described step B, the transmitting power that private downlink physical channel described in the adjacent next operation phase is controlled according to the accuracy or the error rate of the described affirmation indication of last operation phase statistics in the base station.

14, the power control module in a kind of base station is characterized in that, comprises statistic unit and power control unit, wherein:

Described statistic unit is used for segmentation and adds up accuracy or the error rate that each operation phase user device responsive is mixed automatic repeat requests affirmation indication;

Described power control unit is used for according to the described accuracy of last operation phase statistics or the channel transmitting power of the described affirmation indication of the adjacent next operation phase carrying of error rate control.

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