CN102340850A - Power control method and equipment - Google Patents

Power control method and equipment Download PDF

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CN102340850A
CN102340850A CN201010231433XA CN201010231433A CN102340850A CN 102340850 A CN102340850 A CN 102340850A CN 201010231433X A CN201010231433X A CN 201010231433XA CN 201010231433 A CN201010231433 A CN 201010231433A CN 102340850 A CN102340850 A CN 102340850A
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maximum transmission
transmission power
channel
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power
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冯淑兰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses a power control method and equipment which relate to the technical field of communication. During multi-channel transmission, the power control of equipment can be realized through reduction in maximum transmitting power. The method comprises the following steps of: acquiring corresponding maximum transmitting power when at least two channels are used for transmission to reduce MPR (Maximum Power Reduction); utilizing the maximum transmitting power to reduce and initiate maximum transmitting power, and computing the reduced maximum transmitting power; and when the sum of the initial transmitting power of the at least two channels is bigger than the reduced maximum transmitting power, adjusting the transmitting power of the channel of the highest priority in the at least two channels to the minimum value of the initial transmitting power and the initial maximum transmitting power of the channel of the highest priority, and adjusting the transmitting power of other channels in the at least two channels to zero. The embodiment of the invention is mainly used in the power adjusting process of communication equipment.

Description

Poewr control method and equipment
Technical field
The present invention relates to communication technical field, relate in particular to a kind of Poewr control method and equipment.
Background technology
In communication system; When equipment transmits,, reduce the implementation complexity and the expense of device simultaneously for fear of interference to other users; Each equipment all has a maximum transmission power, and the power of the signal through the emission of this equipment can not surpass this maximum transmission power.When a plurality of channels transmit simultaneously; All channel transmitting power sums can not surpass this maximum transmission power; If all channel transmitting power sums have surpassed maximum transmission power; Then need reduce the power of all or part of channel, be no more than maximum transmission power up to all channel transmitting power sums.With LTE is example, and the terminal in the transmitting power of k the PUSCH (Physical Uplink Shared CHannel) of i sub-frame transmission is: P PUSCH(i, k), the terminal is P in the transmitting power of i sub-frame transmission PUCCH (Physical Uplink Control CHannel) PUCCH(i), the maximum transmission power at terminal is expressed as P CMAX, then
Figure BSA00000197453400011
If
Figure BSA00000197453400012
Then under the situation of the preferential through-put power that guarantees PUCCH, the through-put power of the reduction PUSCH of appropriateness, until the through-put power sum of the through-put power of PUCCH and PUSCH smaller or equal to maximum transmission power, that is:
Figure BSA00000197453400013
Wherein, w kIt is the power multiple that the transmitting power of k PUSCH need be reduced to.
On the other hand, in carrying out the process of power adjustment,, can make spuious increase in the band of signal outer spuious and the band to cause to satisfy the outer spuious requirement of band of system if when on same subframe, transmitting a plurality of discrete channel simultaneously.At this moment, in order to satisfy the outer spuious requirement of band, need the maximum transmission power of reduction equipment, the maximum transmit power value that needs to reduce is called MPR (Maximum Power Reduction, maximum transmission power reduces), promptly requires:
Figure BSA00000197453400014
Wherein, the size of MPR is relevant with the size and the relative transmission relation between the different channels of distance, the shared frequency chunks of different channels of each interchannel of transmission simultaneously, and typical MPR value is expressed as 1~10dB with dB, and promptly 10 0.1~10.
Yet; The inventor finds in the existing Poewr control method; When plant capacity is limited; Usually adopt the method for channel power of adjustment PUSCH, but this method is not considered the influence of MPR to power control to satisfy
Figure BSA00000197453400021
.On the other hand, though some document of prior art is mentioned the problem that when power limited and multichannel transmit simultaneously, will consider MPR, do not provide concrete scheme.
Summary of the invention
Embodiments of the invention provide a kind of Poewr control method and equipment, when multichannel transmits, can combine maximum transmission power to reduce and realize the power control to equipment.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of Poewr control method comprises:
Maximum transmission power corresponding when obtaining at least two Channel Transmission reduces MPR;
Utilize said maximum transmission power to reduce and initial maximum transmission power, calculate the maximum transmission power behind the rollback;
During maximum transmission power after the Initial Trans sum of said at least two channels is greater than said rollback; Said at least two the highest channel transmitting power of channel medium priority are adjusted into the Initial Trans of the highest channel of this priority and the minimum value in the initial maximum transmission power, other channel transmitting power in said at least two channels are adjusted into zero.
A kind of communication equipment comprises:
Acquiring unit, maximum transmission power corresponding when being used to obtain at least two Channel Transmission reduces MPR;
Computing unit is used to utilize said maximum transmission power to reduce and initial maximum transmission power, calculates the maximum transmission power behind the rollback;
First adjustment unit; When being used for maximum transmission power after greater than said rollback of Initial Trans sum when said at least two channels; Said at least two the highest channel transmitting power of channel medium priority are adjusted into the Initial Trans of the highest channel of this priority and the minimum value in the initial maximum transmission power, other channel transmitting power in said at least two channels are adjusted into zero.
The Poewr control method that the embodiment of the invention provides; Reduce the maximum transmission power to obtain behind the rollback according to maximum transmission power; In conjunction with the maximum transmission power behind this rollback said at least two channels that transmit are carried out the different power adjustment; Thereby when multichannel transmits, can combine maximum transmission power to reduce and realize power control equipment.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The flow chart of a kind of Poewr control method that Fig. 1 provides for the embodiment of the invention;
The flow chart of the another kind of Poewr control method that Fig. 2 provides for the embodiment of the invention;
The structure chart of a kind of communication equipment that Fig. 3 provides for the embodiment of the invention;
The structure chart of the another kind of communication equipment that Fig. 4 provides for the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention as shown in Figure 1 provides a kind of Poewr control method, when at least two channels transmit, can combine maximum transmission power to reduce and realize the power control to equipment.This method comprises the steps:
Maximum transmission power corresponding when 101, obtaining at least two Channel Transmission reduces MPR.
During concrete the application; When a plurality of channels transmit; The maximum transmission power that multichannel transmits is lower than the maximum transmission power of terminal actual transmissions, and the transmitting power that is reduced just is called maximum transmission power and reduces MPR (Maximum Power Reduction).The size of the shared frequency chunks of the frequency range at each channel place of the size of MPR and multichannel transmission, the through-put power of each channel, each channel and the distance dependent of each interchannel.
102, utilize said maximum transmission power to reduce and initial maximum transmission power, calculate the maximum transmission power behind the rollback.
In the concrete application process, can reduce the maximum transmission power that draws after (MPR) adjusts the initial maximum transmission power of communication equipment behind this rollback according to maximum transmission power.For example, maximum transmission power corresponding in the time of can obtaining said at least two channels and transmit reduces, and initial maximum transmission power is reduced the maximum transmission power that draws behind the rollback divided by said maximum transmission power.
Need to prove that maximum transmission power described in the embodiment of the invention reduces the numerical value of employing type real and representes.For example, MPR is expressed as 10 0.1~10.Certainly; It also can be that unit representes with dB that said maximum transmission power reduces; If maximum transmission power adopts dBm to represent, it is unit when representing that MPR adopts dB, reduces the maximum transmission power that draws behind the rollback through initial maximum transmission power being deducted said maximum transmission power.For example, MPR is expressed as 1dB~10dB.
103, during the maximum transmission power after the Initial Trans sum of said at least two channels is greater than said rollback; Said at least two the highest channel transmitting power of channel medium priority are adjusted into the Initial Trans of the highest channel of this priority and the minimum value in the initial maximum transmission power, other channel transmitting power in said at least two channels are adjusted into zero.
During concrete the application; During maximum transmission power after each self-corresponding Initial Trans sum of said at least two channels is greater than said rollback; Explained when this moment, the maximum transmission power after communication equipment adopts rollback carried out the signal emission; Can't satisfy above-mentioned at least two channels and transmit required power, thereby this step preferentially satisfies the highest channel transmitting power demand of priority according to the priority of channel; The channel transmitting power that priority is the highest is adjusted into the minimum value in Initial Trans corresponding with it and the initial maximum transmission power, and other channel transmitting power are adjusted into zero.
Can find out from the implementation procedure that the power of the foregoing description description is controlled; Reduce the maximum transmission power to obtain behind the rollback according to maximum transmission power; In conjunction with the maximum transmission power behind this rollback said at least two channels that transmit are carried out the different power adjustment; Thereby when multichannel transmits, can combine maximum transmission power to reduce and realize power control equipment.
In the actual application, be example, at least two channels that transmit, suppose that the transmitting power that communication equipment passes through k Channel Transmission PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) in the i sub-frame is: P with LTE PUSCH(i, k), k>=1 wherein is P in the transmitting power of i sub-frame through a Channel Transmission PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) PUCCH(i), the initial maximum transmission power of said communication equipment is expressed as P CMAX, suppose the channel of the highest channel of application scenarios medium priority for transmission PUCCH.
When adopting above-mentioned Poewr control method shown in Figure 1 that the transmitting power of communication equipment is adjusted, if
Figure BSA00000197453400051
The channel transmitting power of the transmission PUCCH that priority is the highest is adjusted into min{P PUCCH(i), P CMAX, other channel transmitting power are adjusted into 0, and at this moment, communication equipment only transmits PUCCH.
Further, in order more in detail, intactly to introduce technical scheme provided by the invention, the embodiment of the invention as shown in Figure 2 provides another kind of Poewr control method, and when at least two channels transmitted, this method comprised the steps:
201, calculate the Initial Trans of each channel in said at least two channels, the Initial Trans of said each channel is carried out the Initial Trans sum that addition obtains said at least two channels.
All to Initial Trans should be arranged, the Initial Trans of channel is the channel emission power before the power adjustment to above-mentioned each channel that transmits.The corresponding Initial Trans of calculating channel can be with reference to following implementation method: the said Initial Trans that calculates be meant according to present transmission rate and actual channel state calculate in order to satisfy the required power of certain transmission rate request and qos requirement.With 3GPP (third generation affiliate) LTE (Long Term Evolution, Long Term Evolution) is example, and the transmitting power that the i sub-frame of UE (User Equipment, subscriber equipment) is transmitted k PUSCH can adopt following formula to calculate:
P PUSCH(i,k)=min{P CMAX,10log 10(M PUSCH(i,k))+P O_PUSCH(j,k)+α(j,k)·PL(k)+Δ TF(i,k)+f(i,k)}
The transmitting power of the i sub-frame transmission PUCCH of UE can adopt following formula to calculate:
P PUCCH(i)=min{P CMAX,P 0_PUCCH+PL+h(n CQI,n HARQ)+Δ F_PUCCH(F)+g(i)};
Wherein, P CMAXInitial maximum transmission power for UE; M PUSCH(i is k) for distributing to PRB (the Physical Resource Block Physical Resource Block) number that k PUSCH is used to transmit; P 0_PUSCH(j, k), P 0 PUCCHBe the power reference value of a semi-static setting, can set different values to different uplink transmission data bags; α (j, k) expression is indicated by high-level signaling the compensation rate of the path loss of k PUSCH; PL is the downlink path loss that the terminal calculates; Δ F_PUCCH(F), the power back-off of the different PUCCH forms of h () expression; Δ TF(i k) is one and code rate and the corresponding side-play amount of modulation system, and whether expression carries out power back-off to different modulation modes and code check; F (i, k), g (i) is the power adjustment that obtains through the base station power control command.
Maximum transmission power corresponding when 202, obtaining at least two Channel Transmission reduces MPR; Utilize said maximum transmission power to reduce and initial maximum transmission power, calculate the maximum transmission power behind the rollback.
In the concrete application process, when a plurality of Channel Transmission, because PA's is non-linear, the intermodulation product of a plurality of discontinuous channels can cause out-of-band radiation to increase, and causes the interference to the signal of other frequency ranges.In order to reduce the energy of out-of-band radiation; When a plurality of Channel Transmission; The maximum transmission power of multichannel transmission is lower than the maximum transmission power of terminal actual transmissions, and the transmitting power that is reduced just is called maximum transmission power and reduces MPR (Maximum Power Reduction).The size of the shared frequency chunks of the frequency range at each channel place of the size of MPR and multichannel transmission, the through-put power of each channel, each channel and the distance dependent of each interchannel.For example in a kind of prior art, MPR according to the distance of two interchannels can get different values, if the distance of two interchannels is less than BW/4 (wherein; BW representes bandwidth B and Width), MPR=0.5dB then, if the distance of two interchannels greater than BW/4 less than BW/2; MPR=1dB then, if the distance of two interchannels greater than BW/2 less than 3BW/4, MPR=3.5dB then; If the distance of two interchannels is greater than 3BW/4, MPR=5dB then.
Obtain after maximum transmission power reduces, utilize said maximum transmission power to reduce and initial maximum transmission power, calculate the maximum transmission power behind the rollback.During concrete the application, initial maximum transmission power is reduced the maximum transmission power that can calculate behind the rollback divided by said maximum transmission power.
Need to prove that maximum transmission power described in the embodiment of the invention reduces the numerical value of employing type real and representes.For example, MPR is expressed as 10 0.1~10.Certainly, if initial maximum transmission power adopts dBm to represent, it also can be that the unit is represented with dB that then said maximum transmission power reduces.If adopting dB is unit when representing, reduce the maximum transmission power that draws behind the rollback through initial maximum transmission power being deducted said maximum transmission power.For example, MPR is expressed as 1dB~10dB.
203, during the maximum transmission power after the Initial Trans sum of said at least two channels is greater than said rollback; Said at least two the highest channel transmitting power of channel medium priority are adjusted into the Initial Trans of the highest channel of this priority and the minimum value in the initial maximum transmission power, other channel transmitting power in said at least two channels are adjusted into zero.
During concrete the application, this step can realize through following substep 203A-203C:
203A, when the Initial Trans of the highest channel of priority during more than or equal to initial maximum transmission power, with the highest channel transmitting power of said priority be adjusted into said initial maximum transmission power, other channel transmitting power are adjusted into zero;
203B, when the Initial Trans of the highest channel of priority during less than initial maximum transmission power and more than or equal to the maximum transmission power behind the said rollback, Initial Trans, other channel transmitting power that the channel transmitting power that priority is the highest is adjusted into the highest channel of this priority are adjusted into zero;
203C, the maximum transmission power after the Initial Trans of the highest channel of priority is less than said rollback; And during the maximum transmission power of the Initial Trans sum of said at least two channels after greater than said rollback, Initial Trans, other channel transmitting power that the channel transmitting power that priority is the highest is adjusted into the highest channel of this priority are adjusted into zero.
204, during the maximum transmission power after the Initial Trans sum of said at least two channels is not more than said rollback, said at least two channels transmitting power separately is adjusted into each self-corresponding Initial Trans of at least two channels.
Can find out from the implementation procedure that the power of the foregoing description description is controlled; Reduce the maximum transmission power to obtain behind the rollback according to maximum transmission power; In conjunction with the maximum transmission power behind this rollback said at least two channels are carried out the different power adjustment; Thereby when multichannel transmits, can combine maximum transmission power to reduce and realize power control equipment.
In order to understand above-mentioned Poewr control method shown in Figure 2 better, a kind of possible application scenarios is provided below, but is not limited to this application scenarios.In the LTE system, at least two channels that transmit simultaneously, the communication equipment of supposing to calculate at the Initial Trans of i sub-frame through k Channel Transmission PUSCH is: P PUSCH(i, k), k>=1 wherein, what suppose to calculate is P at the Initial Trans of i sub-frame through a Channel Transmission PUCCH PUCCH(i), the initial maximum transmission power of said communication equipment is expressed as P CMAX, suppose the channel of the highest channel of application scenarios medium priority for transmission PUCCH, when reducing, the corresponding maximum transmission power of said at least two channels is expressed as MPR, and the maximum transmission power behind the said rollback can be expressed as P CMAX/ MPR.The process that adopts above-mentioned Poewr control method shown in Figure 2 to carry out power control can be described below:
If P PUCCH(i)>=P CMAX, the channel transmitting power of said transmission PUCCH is adjusted into P CMAX, other channel transmitting power are adjusted into zero;
If P CMAX>P PUCCH(i)>=P CMAX/ MPR is adjusted into P with the said channel transmitting power of transmitting PUCCH PUCCH(i), other channel transmitting power are adjusted into zero;
If P PUCCH(i)<P CMAX/ MPR, and
Figure BSA00000197453400091
The channel transmitting power of said transmission PUCCH is adjusted into P PUCCH(i), other channel transmitting power are adjusted into zero;
If
Figure BSA00000197453400092
is adjusted into each self-corresponding Initial Trans of said at least two channels with said at least two channels transmitting power separately.
Further, Poewr control method shown in Figure 2 can also comprise the steps for 205 (figure does not show):
205, during the maximum transmission power after the Initial Trans sum of said at least two channels is greater than said rollback; Send customizing messages to Correspondent Node through the highest channel of said priority, it is zero that said customizing messages is used to indicate said other channel transmitting power.
In the actual implementation process; Because during the maximum transmission power after the Initial Trans sum of said at least two channels is greater than said rollback; Communication equipment can the channel transmitting power that priority is the highest be adjusted into the Initial Trans corresponding with it and be adjusted into zero with minimum value, other channel transmitting power in the initial maximum transmission power when transmitting.At this moment; The Correspondent Node of this communication equipment does not also know will be adjusted into except other channel transmitting power the highest channel of priority zero; Send to Correspondent Node so need carry customizing messages through the highest channel of said priority; Actual transmission is not carried out in notifying communication opposite end, the channel that priority is low.
With LTE is example, can on the channel of transmission PUCCH, carry above-mentioned customizing messages, with notice eNB.ENB is detecting except the channel of the highest transmission PUCCH of said priority; After the transmission of not carrying out reality of other channels; ENB just can transferring ACK/NACK signal; Then carrying out other corresponding processing, the MCS that for example reduces PUSCH perhaps reduces the transmission block size of PUSCH with the PUSCH through-put power that reduction needs.
Embodiment as shown in Figure 3 provides a kind of communication equipment, and this equipment adopts a plurality of Channel Transmission signals, and this communication equipment comprises: acquiring unit 11, computing unit 12 and first adjustment unit 13.
Maximum transmission power corresponding when wherein, acquiring unit 11 is used to obtain at least two Channel Transmission reduces MPR.Computing unit 12 is used to utilize said maximum transmission power to reduce and initial maximum transmission power, calculates the maximum transmission power behind the rollback.
For example, said computing unit 12 can be through reducing the maximum transmission power that draws behind the rollback with initial maximum transmission power divided by said maximum transmission power.
When first adjustment unit 13 is used for maximum transmission power after greater than said rollback of Initial Trans sum when said at least two channels; Said at least two the highest channel transmitting power of channel medium priority are adjusted into the Initial Trans of the highest channel of this priority and the minimum value in the initial maximum transmission power, other channel transmitting power in said at least two channels are adjusted into zero.
Carrying out the process of power control can find out from above-mentioned communication equipment; Reduce the maximum transmission power to obtain behind the rollback according to maximum transmission power; In conjunction with the maximum transmission power behind this rollback said at least two channels are carried out the different power adjustment; Thereby when multichannel transmits, can combine maximum transmission power to reduce and realize power control equipment.
Further, as shown in Figure 4, said communication equipment also comprises: second adjustment unit 14.
During maximum transmission power after the Initial Trans sum of said at least two channels is not more than said rollback, said second adjustment unit 14 is used for said at least two channels transmitting power separately is adjusted into each self-corresponding Initial Trans of at least two channels respectively.
Need to prove; When adopting technical scheme provided by the invention to carry out power control; Because during the maximum transmission power after each self-corresponding Initial Trans sum of said at least two channels is greater than said rollback; Communication equipment can the channel transmitting power that priority is the highest be adjusted into the Initial Trans corresponding with it and be adjusted into zero with minimum value, other channel transmitting power in the initial maximum transmission power when transmitting.At this moment; The Correspondent Node of this communication equipment does not also know will be adjusted into except other channel transmitting power the highest channel of priority zero; Send to Correspondent Node so need carry customizing messages through the highest channel of said priority; Actual transmission is not carried out in notifying communication opposite end, the channel that priority is low.
Further, (scheme not show) that the communicator that embodiment of the invention provides can also comprise: transmitting element.
During maximum transmission power after the Initial Trans sum of said at least two channels is greater than said rollback; Said transmitting element is used for sending customizing messages to Correspondent Node through the highest channel of said priority, and it is zero that said customizing messages is used to indicate said other channel transmitting power.
Said communication equipment can be terminal equipment, for example UE.
When the embodiment of the invention is mainly used in the multichannel transmission, equipment is carried out in the process of power control in conjunction with the maximum transmission power reduction.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Through the description of above execution mode, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better execution mode under a lot of situation.The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.
Therefore, protection scope of the present invention should be as the criterion with the protection range of said claim.

Claims (10)

1. a Poewr control method is characterized in that, comprising:
Maximum transmission power corresponding when obtaining at least two Channel Transmission reduces MPR;
Utilize said maximum transmission power to reduce and initial maximum transmission power, calculate the maximum transmission power behind the rollback;
During maximum transmission power after the Initial Trans sum of said at least two channels is greater than said rollback; Said at least two the highest channel transmitting power of channel medium priority are adjusted into the Initial Trans of the highest channel of this priority and the minimum value in the initial maximum transmission power, other channel transmitting power in said at least two channels are adjusted into zero.
2. Poewr control method according to claim 1 is characterized in that, the said maximum transmission power that utilizes reduces and initial maximum transmission power, and the maximum transmission power that calculates behind the rollback comprises:
Initial maximum transmission power is reduced the maximum transmission power that draws behind the rollback divided by said maximum transmission power.
3. Poewr control method according to claim 1 is characterized in that the channel that said priority is the highest is Physical Uplink Control Channel PUCCH.
4. according to each described Poewr control method of claim 1-3; It is characterized in that; Also comprise: during maximum transmission power after the Initial Trans sum of said at least two channels is greater than said rollback; Send customizing messages to Correspondent Node through the highest channel of said priority, it is zero that said customizing messages is used to indicate said other channel transmitting power.
5. according to each described Poewr control method of claim 1-3, it is characterized in that, also comprise:
During maximum transmission power after the Initial Trans sum of said at least two channels is not more than said rollback, said at least two channels transmitting power separately is adjusted into each self-corresponding Initial Trans of at least two channels respectively.
6. according to each described Poewr control method of claim 1-3, it is characterized in that, also comprise:
Calculate the Initial Trans of each channel in said at least two channels, the Initial Trans of said each channel is carried out the Initial Trans sum that addition obtains said at least two channels.
7. a communication equipment is characterized in that, comprising:
Acquiring unit, maximum transmission power corresponding when being used to obtain at least two Channel Transmission reduces MPR;
Computing unit is used to utilize said maximum transmission power to reduce and initial maximum transmission power, calculates the maximum transmission power behind the rollback;
First adjustment unit; When being used for maximum transmission power after greater than said rollback of Initial Trans sum when said at least two channels; Said at least two the highest channel transmitting power of channel medium priority are adjusted into the Initial Trans of the highest channel of this priority and the minimum value in the initial maximum transmission power, other channel transmitting power in said at least two channels are adjusted into zero.
8. communication equipment according to claim 7 is characterized in that, also comprises:
Second adjustment unit; When being used for the maximum transmission power after the Initial Trans sum of said at least two channels is not more than said rollback, said at least two channels transmitting power separately is adjusted into each self-corresponding Initial Trans of at least two channels respectively.
9. according to claim 7 or 8 described communication equipments; It is characterized in that; Also comprise: transmitting element; When being used for maximum transmission power after greater than said rollback of Initial Trans sum when said at least two channels, send customizing messages to Correspondent Node through the highest channel of said priority, it is zero that said customizing messages is used to indicate said other channel transmitting power.
10. according to claim 7 or 8 described communication equipments, it is characterized in that said communication equipment is a terminal equipment.
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