CN102412945B - Power configuration method for physical harq indication channel - Google Patents

Abstract

The invention provides a power configuration method for a physical harq indication channel (PHICH). In the method, the power of the PHICH is adjusted according to the quality of transmission performed by the PHICH the last time, so the power configuration of the current PHICH is coincided with the quality of the PHICH; therefore, dynamic configuration of the PHICH can be realized effectively and the utilization of power resources of the PHICH can be optimized.

Description

The power distribution method of physical mixing retransmission indicating chanel

Technical field

The present invention relates to the resource distribution technology in mobile communication, particularly relate to the power distribution method of a kind of physical mixing retransmission indicating chanel (PHICH).

Background technology

In LTE system, when carrying out Physical Uplink Shared Channel (PUSCH) transmission, need to indicate by PHICH the ACK/NACK information of PUSCH transmission.Current PHICH transmitting procedure mainly comprises the following steps: first, the information on base station (eNB) decoding PUSCH, generates ACK or nack message according to CRC check result; Then, eNB, according to the resource location of PUSCH, calculates ACK/NACK and transmits shared PHICH group position and the sequence location in group; Finally, it is multiplexing that a plurality of PHICH sequences in group are carried out code minute (CDM), sends PHICH.

From said process, can find out, on PHICH, adopt multi-user CDM form, for ACK/NACK, adopt sequence spread spectrum to transmit, there is no cyclic redundancy check (CRC) (CRC).

Because PHICH does not have CRC check, and do not adopt UE to send the close-loop power control mechanism that TPC adjusts PHICH power, therefore the transmission quality of PHICH needs eNB oneself to arrange.In system, for the power setting of PHICH, conventionally, according to constant power setting, dynamically do not adjust at present.The power setting that like this, will have a PHICH is problem improperly.This not only affects PHICH transmission, and further affects the transmission of PUSCH; Accordingly, due to PDCCH and the configurable descending gross power of other down channel shared systems, therefore, also by descending other channel of the impact especially power division of PDCCH, further have influence on the scheduled transmission of PDSCH/PUSCH.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of power distribution method of physical mixing retransmission indicating chanel, and the method can realize the dynamic-configuration of PHICH power, optimizes the utilization of PHICH power resource.

In order to achieve the above object, the technical scheme that the present invention proposes is:

A power distribution method of physical mixing retransmission indicating chanel PHICH, the method comprises the following steps:

A, when at moment i, base station eNode B receives user equipment (UE) _mthe Physical Uplink Shared Channel PUSCH data of mixed automatic retransfer request HARQ process n time, according to the cyclic check code CRC check result that described PUSCH data are carried out obtaining after decoding, the ACK/NACK information HI (i) that determines corresponding needs feedback, sends to described UE by described HI (i) by PHICH channel _m;

B, when at moment j, when described base station need to receive the PUSCH data of described HARQ process n again, if receive PUSCH data,, according to described PUSCH data are carried out to the cyclic check code CRC check result obtaining after decoding, determine the ACK/NACK information HI (j) of corresponding needs feedback;

C, described base station according at moment j to the reception result of described PUSCH data and described HI (i), judge whether described HI (i) transmits correctly, and according to described judged result and described HI (j), to the last time will be to described UE _mthe ACK/NACK information sending is carried out power control.

In sum, the physical mixed that the present invention proposes and the power distribution method of retransmission indicating chanel, by the quality of transmitting according to last PHICH, power to PHICH channel is adjusted, the power configuration of current PHICH channel is consistent with the quality of PHICH channel, can effectively realize the dynamic-configuration of PHICH channel, optimize the utilization of PHICH power resource.

Accompanying drawing explanation

Fig. 1 is the schematic flow sheet of the embodiment of the present invention one.

Embodiment

For making the object, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.

Core concept of the present invention is: according to the quality of last PHICH transmission, the power of PHICH channel is adjusted, so that the power configuration of current PHICH channel is consistent with the quality of PHICH channel, thereby can be realized the dynamic-configuration of PHICH channel.

Fig. 1 is the schematic flow sheet of the embodiment of the present invention one.As shown in Figure 1, embodiment mono-mainly comprises the following steps:

Step 101, when at moment i, base station eNode B receives user equipment (UE) _mthe Physical Uplink Shared Channel PUSCH data of mixed automatic retransfer request HARQ process n time, according to cyclic check code (CRC) check results that described PUSCH data are carried out obtaining after decoding, the ACK/NACK information HI (i) that determines corresponding needs feedback, sends to described UE by described HI (i) by PHICH channel _m.

Here, utilize CRC check result, obtain HI (i), and HI (i) is fed back to UE _mafter this UE will determine whether to carry out the re-transmission of data according to this HI (i), like this, in step 103 can according on once receive situation and the HI (i) of data, judge the correctness of the transmission of HI (i), thereby can to current power gain factors, dynamically adjust accordingly, so that it is applicable to current channel conditions.

Particularly, definite method of HI described in this step (i) is: if described CRC check result is 0, HI (i) is ACK; Otherwise, HI (i)=NACK.

Step 102, when at moment j, when described base station need to receive the PUSCH data of described HARQ process n again, if receive PUSCH data, according to described PUSCH data are carried out to the CRC check result obtaining after decoding, determine the ACK/NACK information HI (j) of corresponding needs feedback.

Here, when constantly j receives the PUSCH data of HARQ process n first for base station after i constantly, now, need to be according to this CRC check result, carry out feeding back ACK/nack message HI (j), whether this HI (j), by correct for the ACK/NACK information of once transmitting on determining in step 103.

Step 103, described base station according at moment j to the reception result of described PUSCH data and described HI (i), judge whether described HI (i) transmits correctly, and according to described judged result and described HI (j), to the last time will be to described UE _mthe ACK/NACK information sending is carried out power control.

Here, in this step, ACK/NACK information that will the last transmission of judgement is whether HI (i) is correct, with this, determines how to UE _mthe power gain factors adopting while sending ACK/NACK information is adjusted, thereby realizes the dynamic-configuration of PHICH channel power.

Preferably, this step can adopt following several method to realize:

Method (one) comprise the steps:

Step 103X1, when described HI (i) is ACK, if described base station does not send the PDCCH information that the PUSCH of moment j is dispatched, and PUSCH (j) the Physical Resource Block PRB associated with PUSCH (i) at moment j taken to other UE by described base station scheduling, when signal being detected in described base station on Physical Resource Block corresponding to described PUSCH (j), by described UE _mcurrent power gain factors raises according to default rise step-length, when signal not detected on Physical Resource Block corresponding to described PUSCH (j), by described UE _mcurrent power gain factors is lowered according to default downward step-length; Wherein, described PUSCH (i) is the PUSCH that transmits at moment i, and the dB value of described downward step-length is the product of the dB value of the target error rate transmitted of default ACK and described rise step-length;

When described HI (i) is NACK, if the number of transmissions of the transmission block that described PUSCH (i) is corresponding does not reach default HARQ maximum transmission times, and described base station does not send the PDCCH information that described PUSCH (j) is associated and dispatches, when signal being detected on Physical Resource Block corresponding to described PUSCH (j), the power gain factors that described UEm is current is lowered according to described downward step-length, when signal not detected on Physical Resource Block corresponding to described PUSCH (j), by described UE _mcurrent power gain factors raises according to described rise step-length;

Step 103X2, when described HI (j) is ACK, by described UE _mcurrent power gain factors, as the last time will be to UE _mthe power gain factors g adopting while sending ACK/NACK information HI (j) _{m, an};

When described HI (j) is NACK, by described UE _mcurrent power gain factors and default NACK gain adjustment factor Δ _{nACK_ACK_linear}product, as the last time will be to UE _mthe power gain factors g adopting while sending ACK/NACK information HI (j) _{m, an}.

In said method () when the last ACK/NACK communication of judgement is when wrong, to UE _mcurrent power gain factors raises, otherwise, to UE _mcurrent power gain factors is lowered.In actual applications; the minimum effective unit of power adjustment can be more than or equal to 0.1dB conventionally; when pacing length is instantly less than this minimum effective unit; needing to accumulate M downward step-length just lowers power gain factors; particularly, will the specific implementation of this thought be described by following method (two):

Method (two) mainly comprise the steps:

Step 103Y1, when described HI (i) is ACK, if described base station does not send the PDCCH information that the PUSCH of moment j is dispatched, and PUSCH (j) the Physical Resource Block PRB associated with PUSCH (i) at moment j taken to other UE by described base station scheduling, when signal being detected in described base station on Physical Resource Block corresponding to described PUSCH (j), by described UE _mcurrent power gain factors raises according to default rise step-length, when signal not detected on Physical Resource Block corresponding to described PUSCH (j), current downward accumulation factor is added to one, and when described downward accumulation factor equals described adjustment threshold value M, by described UE _mcurrent power gain factors is lowered according to default downward step-length, and described downward accumulation factor is set to 0; Wherein, described PUSCH (i) is the PUSCH that transmits at moment i, and the dB value of described downward step-length is the product of the dB value of the target error rate transmitted of default ACK and described rise step-length;

described Δ _{step_down}for the dB value of described downward step-length, described δ is the minimum effective unit that default power is adjusted, Δ _{step_down}< δ.

When described HI (i) is NACK, if the number of transmissions of the transmission block that described PUSCH (i) is corresponding does not reach default HARQ maximum transmission times, and described base station does not send described PUSCH (j), when signal being detected on Physical Resource Block corresponding to described PUSCH (j), current downward accumulation factor is added to one, and when described downward accumulation factor equals described adjustment threshold value M, by described UE _mcurrent power gain factors is lowered according to described downward step-length, described downward accumulation factor is set to 0, when signal not detected on Physical Resource Block corresponding to described PUSCH (j), by described UE _mcurrent power gain factors raises according to described rise step-length.

Preferably, when

while being not integer, described step 103Y 1 further comprises:

When described HI (i) is NACK, if the number of transmissions of the transmission block that described PUSCH (i) is corresponding does not reach default HARQ maximum transmission times, and described base station does not send the PDCCH information that described PUSCH (j) is associated and dispatches, when signal not detected on Physical Resource Block corresponding to described PUSCH (j), by current ACK error of transmission parameter N _{err_ack}execution adds an operation, if

described by described UE _mcurrent power gain factors

After lowering according to described downward step-length, then by described power gain factors to lowering described δ dB, to compensate the error of accumulating in each rise process, described Δ _{step_up}dB value for described rise step-length.Preferably,

round, with simplified operation.

Step 103Y 2, when described HI (j) is ACK, by described UE _mcurrent power gain factors, as the last time will be to UE _mthe power gain factors g adopting while sending ACK/NACK information HI (j) _{m, an};

When described HI (j) is NACK, by described UE _mcurrent power gain factors and default NACK gain adjustment factor Δ _{nACK_ACK_linear}product, the power gain factors g that will adopt when UEm sends ACK/NACK information HI (j) as the last time _{m, an}.

In method () and (two), at the UE that power gain is used when adjusting _mcurrent power gain factors is: the up-to-date power gain factors using after last transferring ACK/nack message.In actual applications, can also all again to this power gain factors, calculate at every turn, below by method (three), this is described in detail.Method (three) comprise the following steps:

Step 103Z0, described base station according to

calculate described UE _mcurrent power gain factors g _{m, j}, wherein, SINR _basefor according to UE _mthe signal to noise ratio dB value of measuring based on cell special reference CRS that the channel quality information CQI of the last feedback calculates, SINR _{target, ack}target signal to noise ratio dB value during for transferring ACK information on PHICH; P _rSfor the energy value EPRE of each resource element of CRS, unit is dBm;

Step 103Z1, when described HI (i) is ACK, if described base station does not send the PDCCH information that the PUSCH of moment j is dispatched, and PUSCH (j) the Physical Resource Block PRB associated with PUSCH (i) at moment j taken to other UE by described base station scheduling, when signal being detected in described base station on Physical Resource Block corresponding to described PUSCH (j), by described UE _mcurrent power gain factors g _{m, j}according to default rise step-length, raise, when signal not detected on Physical Resource Block corresponding to described PUSCH (j), by described UE _mcurrent power gain factors g _{m, j}according to default downward step-length, lower; Wherein, described PUSCH (i) is the PUSCH that transmits at moment i, and the dB value of described downward step-length is the product of the dB value of the target error rate transmitted of default ACK and described rise step-length;

When described HI (i) is NACK, if the number of transmissions of the transmission block that described PUSCH (i) is corresponding does not reach default HARQ maximum transmission times, and described base station does not send the PDCCH information that described PUSCH (j) is associated and dispatches, when signal being detected on Physical Resource Block corresponding to described PUSCH (j), by described UE _mcurrent power gain factors g _{m, j}according to described downward step-length, lower, when signal not detected on Physical Resource Block corresponding to described PUSCH (j), by described UE _mcurrent power gain factors g _{m, j}according to described rise step-length, raise;

Step 103Z2, when described HI (j) is ACK, by described UE _mcurrent power gain factors g _{m, j}, as the last time will be to UE _mthe power gain factors g adopting while sending ACK/NACK information _{m, an};

When described HI (j) is NACK, by described UE _mcurrent power gain factors g _{m, j}with default NACK gain adjustment factor Δ _{nACK_ACK_linear}product, as the last time will be to UE _mthe power gain factors g adopting while sending ACK/NACK information _{m, an}.

Preferably, in advance can be according to following three kinds of methods to UE _mpower gain factors initial value g _{m, ini}arrange:

Method one: in advance according to

determine described UE _mpower gain factors initial value g _{m, ini}, wherein, SINR _basefor according to UE _mthe signal to noise ratio dB value of measuring based on cell special reference CRS that the channel quality information CQI of the last feedback calculates, SINR _{target, ack}target signal to noise ratio dB value during for transferring ACK information on PHICH; P _rSfor the energy value EPRE of each resource element of CRS, unit is dBm.

Method two: in advance according to determine described UE _mpower gain factors initial value g _{m, ini}, wherein,

for being the maximum transmission power of antenna port p,

for the resource element number of non-reference signal in whole bandwidth of community,

whole bandwidth small area dedicated reference for community

The resource element number of signal, P _rSfor the energy value (Energy Per Resource Element, EPRE) of each resource element of CRS, unit is dBm.

Method three: in advance according to

determine described UE _mpower gain factors initial value g _{m, ini}, wherein, SINR _reffor the reference target signal to noise ratio dB value of default community, SINR _{target, ack}during for transferring ACK information on PHICH target signal to noise ratio dB value; P _rSenergy value for each resource element of CRS.

Further, consider if be provided with ACK/NACK maximum power thresholding in system, when carrying out power configuration, need to consider the constraint of this thresholding, after described step 103X2, step 103Y2 and step 103Z 2, can further include following step, to meet system requirements:

Determined described g in determining step 103X2, step 103Y2 or step 103Z 2 _{m, an}whether be greater than

p _{hI, HL}for default ACK/NACK maximum power thresholding, if so, will

as the last time will be to UE _mthe power gain factors g adopting while sending ACK/NACK information _{m, an}; Otherwise, judgement g _{m, an}whether be less than

for default ACK/NACK minimum power thresholding, if so, will

as the last time will be to UE _mthe power gain factors g adopting while sending ACK/NACK information _{m, an}.

Further, obtain after the HI power gain factors of each UE, for CDM, be positioned at a plurality of UE of same PHICH level, can further calculate corresponding PHICH group power, if system has Power Limitation to PHICH, after described step 103, can also comprise the steps, to meet system requirements: for each PHICH group, according to default PHICH power pond size

with described _{gm, an}, configure the PHICH transmitting power that this PHICH organizes interior each subscriber equipment.Wherein, layoutprocedure comprises the steps: particularly

Steps d 1, by the power gain factors g of each subscriber equipment in current this PHICH group obtaining _{m, an}corresponding performance number g ² _{m, an}add up, obtain

If steps d 2

perform step d3, otherwise execution step d6, wherein, when adopting regular circulation prefix,

m _ifor configure definite PHICH batch total according to TDD ascending-descending subframes, calculate corrected parameter,

for the PHICH group number calculating according to broadcast, when adopting extended cyclic prefix,

Steps d 3, in this PHICH group

equaled P _{hI, LL}subscriber equipment, be labeled as

and calculate in current this PHICH group all

sum, obtains

Steps d 4, in this PHICH group

be not equal to P _{hI, LL}subscriber equipment, according to $g_{m,\mathrm{an}}^2=g_{m,\mathrm{an}}^2\&CenterDot;\frac{P_{\mathrm{RE},\max }^{\left(p\right)}-\underset{\mathrm{intra}-\mathrm{group}}{\mathrm{\&Sigma;}}{g}_{m,\mathrm{an},\min }^2}{P_{\mathrm{RE},\mathrm{group}}^{\left(p\right)}-\underset{\mathrm{intra}-\mathrm{group}}{\mathrm{\&Sigma;}}{g}_{m,\mathrm{an},\min }^2},$ Right

upgrade;

Each after steps d 5, judgement renewal

whether be less than P _{hI, LL}if have

be less than P _{hI, LL}should

be configured to P _{hI, LL}, execution step d1;

Steps d 6, finish described configuration.

In actual applications, when PHICH is during without max power constraint, the power setting of its PHICH group is fairly simple, only needs the HI power in same PHICH group to add up, $P_{\mathrm{RE},\mathrm{group}}^{\left(p\right)}=\underset{\mathrm{intra}-\mathrm{group}}{\mathrm{\&Sigma;}}{g}_{m,\mathrm{an}}^2.$

In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (11)

1. a power distribution method for physical mixing retransmission indicating chanel, is characterized in that, the method comprises the following steps:

A, when at moment i, base station eNode B receives user equipment (UE) _mthe Physical Uplink Shared Channel PUSCH data of mixed automatic retransfer request HARQ process n time, according to the cyclic check code CRC check result that described PUSCH data are carried out obtaining after decoding, determine the ACK/NACK information HI(i of corresponding needs feedback), by described HI(i) by physical mixing retransmission indicating chanel PHICH, send to described UE _m;

B, when at moment j, when described base station need to receive the PUSCH data of described HARQ process n again, if receive PUSCH data,, according to described PUSCH data are carried out to the cyclic check code CRC check result obtaining after decoding, determine the ACK/NACK information HI(j of corresponding needs feedback);

C, described base station according at moment j to the reception result of described PUSCH data and described HI(i), judge described HI(i) whether transmit correct, and according to described judged result and described HI(j), to the last time will be to described UE _mthe ACK/NACK information sending is carried out power control; Wherein, described power is controlled and is comprised:

As described HI(j) while being ACK, by described UE _mcurrent power gain factors, as the last time will be to UE _mtransmission ACK/NACK information HI(j) the power gain factors g adopting time _{m, an};

As described HI(j) while being NACK, by described UE _mcurrent power gain factors and default NACK gain adjustment factor Δ _{nACK_ACK_linear}product, as the last time will be to UE _mtransmission ACK/NACK information HI(j) the power gain factors g adopting time _{m, an}.

2. method according to claim 1, is characterized in that, HI(i described in step a) be defined as:

If described CRC check result is 0, HI(i) be ACK; Otherwise, HI(i)=NACK.

3. method according to claim 1, is characterized in that, UE described in described step c _mdefinite method of current power gain factors comprises:

As described HI(i) while being ACK, if described base station does not send the PDCCH information that the PUSCH of moment j is dispatched, and at moment j and PUSCH(i) associated PUSCH(j) Physical Resource Block PRB takies to other UE by described base station scheduling, when in described base station at described PUSCH(j) while signal being detected on corresponding Physical Resource Block, by described UE _mcurrent power gain factors raises according to default rise step-length, when at described PUSCH(j) while signal not detected on corresponding Physical Resource Block, by described UE _mcurrent power gain factors is lowered according to default downward step-length; Wherein, described PUSCH(i) PUSCH for transmitting at moment i, the dB value of described downward step-length is the product of the dB value of the target error rate transmitted of default ACK and described rise step-length;

As described HI(i) while being NACK, if described PUSCH(i) the number of transmissions of corresponding transmission block does not reach default HARQ maximum transmission times, and described base station does not send described PUSCH(j) be associated scheduling PDCCH information, when at described PUSCH(j) while signal being detected on corresponding Physical Resource Block, by described UE _mcurrent power gain factors is lowered according to described downward step-length, when at described PUSCH(j) while signal not detected on corresponding Physical Resource Block, by described UE _mcurrent power gain factors raises according to described rise step-length.

4. method according to claim 1, is characterized in that, UE described in described step c _mdefinite method of current power gain factors comprises:

As described HI(i) while being ACK, if described base station does not send the PDCCH information that the PUSCH of moment j is dispatched, and at moment j and PUSCH(i) associated PUSCH(j) Physical Resource Block PRB takies to other UE by described base station scheduling, when in described base station at described PUSCH(j) while signal being detected on corresponding Physical Resource Block, by described UE _mcurrent power gain factors raises according to default rise step-length, when at described PUSCH(j) while signal not detected on corresponding Physical Resource Block, current downward accumulation factor is added to one, and when described downward accumulation factor equals described adjustment threshold value M, by described UE _mcurrent power gain factors is lowered according to default downward step-length, and described downward accumulation factor is set to 0; Wherein, described PUSCH(i) PUSCH for transmitting at moment i, the dB value of described downward step-length is the product of the dB value of the target error rate transmitted of default ACK and described rise step-length;

described Δ _{step_down}for the dB value of described downward step-length, described δ is the minimum effective unit that default power is adjusted, Δ _{step_down}< δ;

As described HI(i) while being NACK, if described PUSCH(i) the number of transmissions of corresponding transmission block does not reach default HARQ maximum transmission times, and described base station does not send described PUSCH(j), when at described PUSCH(j) while signal being detected on corresponding Physical Resource Block, current downward accumulation factor is added to one, and when described downward accumulation factor equals to adjust threshold value M, by described UE _mcurrent power gain factors is lowered according to described downward step-length, described downward accumulation factor is set to 0, when at described PUSCH(j) while signal not detected on corresponding Physical Resource Block, by described UE _mcurrent power gain factors raises according to described rise step-length.

5. method according to claim 4, is characterized in that, when

while being not integer, described method further comprises:

As described HI(i) while being NACK, if described PUSCH(i) the number of transmissions of corresponding transmission block does not reach default HARQ maximum transmission times, and described base station does not send described PUSCH(j) be associated scheduling PDCCH information, when at described PUSCH(j) while signal not detected on corresponding Physical Resource Block, by current ACK error of transmission parameter N _{err_ack}execution adds an operation, if

described by described UE _mafter current power gain factors is lowered according to described downward step-length, then by described power gain factors to lowering described δ dB, described Δ _{step_up}dB value for described rise step-length.

6. method according to claim 1, is characterized in that, UE described in described step c _mdefinite method of current power gain factors comprises:

Described base station according to

calculate described UE _mcurrent power gain factors g _m,j, wherein, SINR _basefor according to UE _mthe signal to noise ratio dB value of measuring based on cell special reference CRS that the channel quality information CQI of the last feedback calculates, SINR _{target, ack}target signal to noise ratio dB value during for transferring ACK information on PHICH; P _rSfor the energy value EPRE of each resource element of CRS, unit is dBm;

As described HI(i) while being ACK, if described base station does not send the PDCCH information that the PUSCH of moment j is dispatched, and at moment j and PUSCH(i) associated PUSCH(j) Physical Resource Block PRB takies to other UE by described base station scheduling, when in described base station at described PUSCH(j) while signal being detected on corresponding Physical Resource Block, by described UE _mcurrent power gain factors g _m,jaccording to default rise step-length, raise, when at described PUSCH(j) while signal not detected on corresponding Physical Resource Block, by described UE _mcurrent power gain factors g _m,jaccording to default downward step-length, lower; Wherein, described PUSCH(i) PUSCH for transmitting at moment i, the dB value of described downward step-length is the product of the dB value of the target error rate transmitted of default ACK and described rise step-length;

As described HI(i) while being NACK, if described PUSCH(i) the number of transmissions of corresponding transmission block does not reach default HARQ maximum transmission times, and described base station does not send described PUSCH(j) be associated scheduling PDCCH information, when at described PUSCH(j) while signal being detected on corresponding Physical Resource Block, by described UE _mcurrent power gain factors g _m,jaccording to described downward step-length, lower, when at described PUSCH(j) while signal not detected on corresponding Physical Resource Block, by described UE _mcurrent power gain factors g _m,jaccording to described rise step-length, raise.

7. according to the method described in claim 3 to 6 any one, it is characterized in that, described method further comprises, in advance according to

determine described UE _mpower gain factors initial value g _{m, ini}, wherein, SINR _basefor according to UE _mthe signal to noise ratio dB value of measuring based on cell special reference CRS that the channel quality information CQI of the last feedback calculates, SINR _{target, ack}target signal to noise ratio dB value during for transferring ACK information on PHICH; P _rSfor the energy value EPRE of each resource element of CRS, unit is dBm.

8. according to the method described in claim 3 to 6 any one, it is characterized in that, described method further comprises, in advance according to

determine described UE _mpower gain factors initial value g _{m, ini}; Wherein,

for the maximum transmission power of antenna port p, unit is dBm;

for the resource element number of non-reference signal in whole bandwidth of community,

for the resource element number of whole bandwidth small area DRS (Dedicated Reference Signal) of community, P _rSfor the energy value EPRE of each resource element of CRS, unit is dBm.

9. according to the method described in claim 3 to 6 any one, it is characterized in that, described method further comprises, in advance according to

determine described UE _mpower gain factors initial value g _{m, ini}, wherein, SINR _reffor the reference target signal to noise ratio dB value of default community, SINR _{target, ack}during for transferring ACK information on PHICH target signal to noise ratio dB value; P _rSenergy value EPRE for each resource element of CRS.

10. according to the method described in claim 3 to 6 any one, it is characterized in that, described method further comprises:

C3, judge described g _{m, an}whether be greater than

p _{hI, HL}for default ACK/NACK maximum power thresholding, if so, will

as the last time will be to UE _mthe power gain factors g adopting while sending ACK/NACK information _{m, an}; Otherwise, judgement g _{m, an}whether be less than

for default ACK/NACK minimum power thresholding, if so, will

as the last time will be to UE _mthe power gain factors g adopting while sending ACK/NACK information _{m, an}.

11. methods according to claim 8, is characterized in that, after described step c, further comprise:

For each PHICH group, according to default PHICH power pond size with described g _{m, an}, configure the PHICH transmitting power that this PHICH organizes interior each subscriber equipment; Described configuration comprises:

D1, by the power gain factors g of each subscriber equipment in current this PHICH group obtaining _{m, an}corresponding performance number g ² _{m, an}add up, obtain

If d2

perform step d3, otherwise execution step d6, wherein, when adopting regular circulation prefix,

m _ifor configure definite PHICH batch total according to TDD ascending-descending subframes, calculate corrected parameter,

for the PHICH group number calculating according to broadcast, when adopting extended cyclic prefix, $P_{\mathrm{RE},\max }^{\left(p\right)}=\frac{P_{\mathrm{PHICH},\max }^{\left(p\right)}}{6\&CenterDot;m_i\&CenterDot;N_{\mathrm{PHICH}}^{\mathrm{group}}};$

D3, in this PHICH group

equaled P _{hI, LL}subscriber equipment, be labeled as

and calculate in current this PHICH group all

sum, obtains

D4, in this PHICH group

be not equal to P _{hI, LL}subscriber equipment, according to $g_{m,\mathrm{an}}^2=g_{m,\mathrm{an}}^2\&CenterDot;\frac{P_{\mathrm{RE},\max }^{\left(p\right)}-\underset{\mathrm{intra}-\mathrm{group}}{\mathrm{\&Sigma;}}{g}_{m,\mathrm{an},\min }^2}{P_{\mathrm{RE},\mathrm{group}}^{\left(p\right)}-\underset{\mathrm{intra}-\mathrm{group}}{\mathrm{\&Sigma;}}{g}_{m,\mathrm{an},\min }^2},$ Right upgrade;

Each after d5, judgement renewal

whether be less than P _{hI, LL}if have

be less than P _{hI, LL}should

be configured to P _{hI, LL}, execution step d1;

D6, finish described configuration.

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