CN101883417A - Method and device for setting power ascending space - Google Patents

Method and device for setting power ascending space Download PDF

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Publication number
CN101883417A
CN101883417A CN201010212113XA CN201010212113A CN101883417A CN 101883417 A CN101883417 A CN 101883417A CN 201010212113X A CN201010212113X A CN 201010212113XA CN 201010212113 A CN201010212113 A CN 201010212113A CN 101883417 A CN101883417 A CN 101883417A
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pusch
component carrier
power
pucch
subframe
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CN101883417B (en
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朱鹏
喻斌
杜忠达
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2011/074057 priority patent/WO2011160506A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/365—Power headroom reporting

Abstract

The invention discloses a method and a device for setting power ascending space. In the method, when user equipment has no PUSCH (Physical Uplink Shared Channel) to send on a component carrier or when a current subframe only has a retransmission PUSCH to send, the user equipment calculates the power ascending space of the user equipment on the component carrier on the basis of a set of predefined parameters, therefore, power ascending space information is provided timely for a base station to carry out resource dispatching and link adaption.

Description

Method and device that the power rising space is provided with
Technical field
Invention relates to communication field, relates in particular to method and device that a kind of power rising space (Power Headroom is called for short PH) is provided with.
Background technology
At 3GPP LTE (The 3rd Generation Partnership Project Long Term Evolution, third generation partner program Long Term Evolution) in the system, uplink power control (Uplink Power Control, can abbreviate uplink power control or power control as) be used to control the transmitting power of uplink physical channel (Uplink Physical Channel), with the path loss and the shadow fading of compensate for channel, and suppress presence of intercell interference.Wherein, the uplink physical channel of uplink power control control comprises Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH), Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH) and measuring reference signals (Sounding Reference Signal, SRS) etc.The control mode that the LTE uplink power control adopts open loop (open loop) and closed loop (closed loop) to combine.
For the subscriber equipment in the LTE system (User Equipment, UE), Physical Uplink Shared Channel PUSCH is defined as in the transmitted power of subframe i:
P PUSCH(i)＝min{P CMAX，10log 10(M PUSCH(i))+P O_PUSCH(j)+α(j)·PL+Δ TF(i)+f(i)}[dBm]
Wherein: i is a natural number, and " [] " internal alphabet shows the unit of parameter, P CMAXIt is the UE maximum configured power output (the Configured Maximum UE output power) that UE is provided with, its span is determined jointly by a plurality of parameters, comprise: by the definite maximum UE power (the maximum UE power) of UE power grade (the UE power class), the IE P-Max of system configuration (maximum configured power), maximum configured power output deviation (PCMAX tolerance) and by maximum power (the Maximum Power Reduction that descends, MPR) and extra maximum power descend (Additional Maximum Power Reduction, A-MPR) etc.;
M PUSCH(i) be that subframe i goes up the PUSCH bandwidth that sends, and its value Resource Block (Resource Block, number RB) is represented;
P O_PUSCH(j) be an open loop power control parameter, its value is (cell specific) amount P that the sub-district is specific O_NOMINAL_PUSCH(j) and specific (UE specific) amount P of UE O_UE_PUSCH(j) and, all dispose by high level; Wherein, PUSCH transmission under corresponding semi-continuous scheduling (semi-persistent scheduled) state of j=0, PUSCH transmission under corresponding dynamic dispatching (dynamic scheduled) state of j=1, the PUSCH transmission of the corresponding accidental access response scheduling of j=2;
α is the specific road loss compensation factor in sub-district, is disposed by high level.When j=0 or 1, α (j) ∈ 0,0.4,0.5,0.6,0.7,0.8,0.9,1}; When j=2, α (j)=1.Be complete path loss compensation when α=1, α＜1 compensates for the part path loss;
PL estimates (the downlink pathloss estimate) at the descending path loss that the UE end is measured and calculated, and is used to estimate up path loss;
Δ TF(i) be transformat (Transmission Format, TF) the relevant power bias of the PUSCH that go up to send with subframe i;
F (i) is the current power control adjustment state of PUSCH.According to the configuration of higher level parameters, when being the accumulated value power control, f (i)=f (i-1)+δ PUSCH(i-K PUSCH); When being the absolute value power control, f (i)=δ PUSCH(i-K PUSCH).Wherein, δ PUSCHBe a closed loop correction value that UE is specific, be called emissive power control command (TPC command) again.
UE estimates according to the open loop of base station and closed-loop power control parameter, instruction, path loss and the transmitting power of the PUSCH that the number of resource blocks of the PUSCH that sends on subframe i estimates is:
P′ PUSCH(i)＝10log 10(M PUSCH(i))+P O_PUSCH(j)+α(j)·PL+Δ TF(i)+f(i)[dBm]，
For making the allowance between transmitting power estimated of maximum configured power output that the base station can know that at a time certain UE is provided with and its physical uplink channel PUSCH that dispatches, thereby scheduling of resource and the link circuit self-adapting of dispatching PUSCH for the base station provide foundation next time, UE need calculate the power rising space (Power Headroom claims margin of power again) of self and report to the base station.In the LTE system, the power rising space of UE on subframe i is defined as:
PH(i)＝P CMAX-{10log 10(M PUSCH(i))+P O_PUSCH(j)+α(j)·PL+Δ TF(i)+f(i)}[dB]，
Be the poor of the power rising space of UE on the subframe i transmitting power that equals maximum configured power output that UE is provided with and the PUSCH of UE estimation.To quantize in [23,40] dB scope by the power rising space that calculates, be that precision is got immediate integer value (quantitative relationship is as shown in table 1) with 1dB, passes to high level by physical layer then.
Table 1 is the quantized value of the power rising space and the mapping relations table of index.As shown in Table 1, the power rising space after media access control layer (Media Access Control Layer abbreviates the MAC layer as) is represented to quantize with the 6bits index, the 6bits index is also referred to as the power rising space.
The quantized value of the table 1 power rising space and the mapping relations table of index
The PH index Power rising space level Calculate value (dB)
0 POWER_HEADROOM_0 -23≤PH＜-22
1 POWER_HEADROOM_1 -22≤PH＜-21
2 POWER_HEADROOM_2 -21≤PH＜-20
3 POWER_HEADROOM_3 -20≤PH＜-19
4 POWER_HEADROOM_4 -19≤PH＜-18
5 POWER_HEADROOM_5 -18≤PH＜-17
... ... ...
57 POWER_HEADROOM_57 34≤PH＜35
58 POWER_HEADROOM_58 35≤PH＜36
59 POWER_HEADROOM_59 36≤PH＜37
60 POWER_HEADROOM_60 37≤PH＜38
61 POWER_HEADROOM_61 38≤PH＜39
62 POWER_HEADROOM_62 39≤PH＜40
63 POWER_HEADROOM_63 PH≥40
(Power Headroom Report is PHR) by Event triggered (event-triggered) in the report of the power rising space.When UE has new upstream data to transmit in current subframe, and the Event triggered power headroom reporting is arranged, and when the channel resource that the base station is distributed for the PUSCH of this UE transmission was enough to load power rising space MAC layer control unit (Power Headroom MAC Control Element) and mac-layer protocol data cell son head (MAC PDU subheader) thereof in proper order according to certain priority of logical channels, UE accused the power rising space index clothes of 6bits by power rising space MAC layer control unit and gives the base station.
It should be noted that in the LTE system only to transmission PUSCH, and PUSCH has the subframe of new transmitting uplink data to report the power rising space.If current subframe does not have PUSCH to send, or current subframe is only for retransmitting PUSCH, though power headroom reporting PHR by Event triggered, UE can not report the power rising space.
LTE-Advanced system (evolution LTE system also can abbreviate the LTE-A system as) is the evolution system of future generation of LTE system.Fig. 1 is the schematic diagram of the carrier aggregation of LTE-A system in the prior art.As shown in Figure 1, the LTE-A system adopts carrier aggregation (carrier aggregation) technological expansion transmission bandwidth, and the carrier wave of each polymerization is called one " component carrier " (component carrier).
In the LTE-A system, subscriber equipment can send a PUSCH on the one-component carrier wave, also can send a plurality of PUSCH simultaneously respectively on a plurality of component carriers.The scheduling of PUSCH is independently on each component carrier, and power control also is independently.
Therefore, prior art proposes, and in the LTE-A system, the calculating of the power rising space is based on (the CC specific PHR, or title PHR per CC) of component carrier, and promptly subscriber equipment calculates the power rising space of each component carrier respectively.
Prior art also proposes, the power rising space of one-component carrier wave can report the base station on another component carrier, the power rising space MAC layer control unit that promptly includes one-component carrier power rising space information can report the base station by the PUSCH that sends on another component carrier.
This just may for reducing that delay that the power rising space reports provides.Such as to a certain component carrier, power headroom reporting is by Event triggered, and current subframe does not have new upstream data to send on this component carrier, if the power rising space of one-component carrier wave is limited on the well-behaved loading gage ripple report, then current subframe subscriber equipment can not report the power rising space; And if the power rising space of one-component carrier wave can report on another component carrier, and suppose that current subframe subscriber equipment has new transmitting uplink data on another component carrier, then current subframe subscriber equipment can be reported the power rising space that is triggered on another component carrier.
At this moment, although subscriber equipment does not have PUSCH to send on the component carrier that the power rising space that is triggered reports, or only have the PUSCH of re-transmission to send, subscriber equipment still need calculate the power rising space of current this component carrier.
Prior art has defined two kinds of power rising spaces based on component carrier that calculate on subframe i component carrier k, be respectively:
The first kind power rising space (power headroom type 1)
PH type 1 ( i , k ) = P CMAX ( k ) - P PUSCH ( i ) = 10 log 10 ( 10 P CMAX ( k ) / 10 10 P PUSCH ( i , k ) / 10 ) [ dB ] ,
The second class power rising space (power headroom type 2)
PH type 2 ( i , k ) = 10 log 10 ( 10 P CMAX ( k ) / 10 - 10 P PUCCH ( i , k ) / 10 10 P PUSCH ( i , k ) / 10 ) [ dB ] ,
Wherein, P CMAX(k) [dBm] is the maximum transmission power (a CC-specificmax power) of component carrier k, P PUSCH(i, k) [dBm] is that subscriber equipment estimates that the PUSCH's send estimates transmitting power, P on subframe i component carrier k PUCCH(i, k) [dBm] is subscriber equipment is estimated the PUCCH send on subframe i component carrier k the transmitting power of estimating, k is the numbering of component carrier.
When having PUSCH to send on the subframe i component carrier k, the transmitting power of estimating of PUSCH is
P PUSCH(i，k)＝10log 10M PUSCH(i，k))+P O_PUSCH(j，k)+α(j，k)·PL(k)+Δ TF(i，k)+f(i，k)[dBm]，
Wherein, M PUSCH(i is a bandwidth of estimating the PUSCH send on subframe i component carrier k k), and its value is represented with the number of Resource Block RB;
P O_PUSCH(j, k) be based on the open loop power control parameter of component carrier k, dispose by high level, wherein, PUSCH transmission under corresponding semi-continuous scheduling (semi-persistent scheduled) state of j=0, PUSCH transmission under corresponding dynamic dispatching (dynamic scheduled) state of j=1, the PUSCH transmission of the corresponding accidental access response scheduling of j=2;
(j k) is based on the road loss compensation factor of component carrier k to α, is disposed by high level.(j k)=1 o'clock is complete path loss compensation, and (j k)＜1 compensates for the part path loss α as α;
PL (k) is that the descending path loss that the subscriber equipment end is measured and calculated is estimated, is used to estimate the up path loss of component carrier k;
Δ TF(i k) is the relevant power bias of transformat with the PUSCH that estimates to send on subframe i component carrier k;
(i k) is the current power control adjustment state of the PUSCH on the component carrier k to f.According to the configuration of higher level parameters, when being the accumulated value power control, f (i)=f (i-1)+δ PUSCH(i-K PUSCH); When being the absolute value power control, f (i)=δ PUSCH(i-K PUSCH).Wherein, δ PUSCHBe a closed loop correction value that UE is specific, be called emissive power control command (TPC command) again.
And when not having PUSCH to send on the subframe i component carrier k, how to calculate the transmitting power of estimating of PUSCH, and then how to calculate the power rising space at subframe i component carrier k, become a problem demanding prompt solution.
It should be noted that the second class power rising space only defines on the component carrier that can send PUCCH.Prior art proposes, and to the LTE-A system of carrier aggregation, subscriber equipment only sends PUCCH on specific (UE-specific) component carrier of subscriber equipment, described component carrier be called the principal component carrier wave (Primary Component Carrier, PCC).Then the second class power rising space only is defined on the specific principal component carrier wave PCC of described subscriber equipment.
In addition, prior art also proposes, and when the power rising space that calculates based on component carrier, need count back-off (power backoff).Back-off is with all multifactor relevant, include but not limited to: working band, system bandwidth, order of modulation, transmission bandwidth position, transmission bandwidth configuration etc., also whether adopt discontinuous resource distribution mode with PUSCH, whether PUSCH sends relevant with PUCCH simultaneously.The scope of back-off can descend with maximum power, and (Maximum Power Reduction MPR) limits.When subscriber equipment sends upward signal, according to the relevant configuration of upward signal, transmitter power amplifier (Power Amplifier, configuration AP), and the maximum power under corresponding scene of standard code descends, and determines the back-off of maximum transmission power.Then subscriber equipment is less than the maximum transmission power that the base station disposes at the maximum transmission power that is provided with on the component carrier on component carrier.
In realizing process of the present invention, invention recognizes that there is following defective in prior art: if current subframe subscriber equipment on certain component carrier does not have PUSCH to send, or current subframe subscriber equipment on certain component carrier only has and retransmits PUSCH when sending, and subscriber equipment can not calculate and report the power rising space.
Summary of the invention
The technical problem to be solved in the present invention provides method and the device that a kind of power rising space is provided with, be used to calculate the power rising space based on component carrier, subscriber equipment does not have PUSCH to send on certain component carrier of certain subframe in the prior art to solve, or on certain component carrier of certain subframe, only have and retransmit PUSCH when sending, subscriber equipment can not calculate and report the problem of the power rising space of subframe component carrier.
According to an aspect of the present invention, the method that provides a kind of power rising space to be provided with, if when subscriber equipment does not have Physical Uplink Control Channel PUSCH transmission or the PUSCH of re-transmission transmission is only arranged on subframe i component carrier k, comprising: subscriber equipment is according to the power rising space of default evaluate parameter calculating subframe i component carrier k.
Preferably, in the technical program, evaluate parameter is in the following parameter one or multinomial: the maximum transmission power of the PUSCH bandwidth of representing with resource block number, the power bias of determining according to the transformat of PUSCH, bias, component carrier k.
Preferably, in the technical program, evaluate parameter can be the PUSCH bandwidth represented with resource block number; The power bias definite according to the transformat of PUSCH; Maximum transmission power with component carrier.
Preferably, in the technical program, evaluate parameter can be the maximum transmission power of bias and component carrier.
According to an aspect of the present invention, the device that provides a kind of power rising space to be provided with, be used for if on subframe i component carrier k, do not have Physical Uplink Control Channel PUSCH to send or when only having the PUSCH of re-transmission to send, calculate the power rising space of subframe i component carrier k according to default one or more evaluate parameters.
Among the present invention, when subscriber equipment does not have PUSCH to send on the one-component carrier wave, or only have and retransmit PUSCH when sending, subscriber equipment is based on the power rising space of one group of current component carrier of predefined calculation of parameter, thereby for carrying out scheduling of resource and link circuit self-adapting provides power rising space information timely in the base station.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the carrier aggregation of LTE-A system in the prior art;
Fig. 2 is the flow chart according to the inventive method embodiment one power rising space method to set up;
Fig. 3 is the flow chart according to the inventive method embodiment two power rising space methods to set up.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
Method embodiment one:
Fig. 2 is the flow chart according to the inventive method embodiment one power rising space method to set up.As shown in Figure 2, when not having Physical Uplink Control Channel PUSCH transmission or only have the PUSCH of re-transmission to send on subframe i component carrier k as if subscriber equipment, present embodiment comprises:
S202, subscriber equipment calculate the power rising space of subframe i component carrier k according to default evaluate parameter.
In the present embodiment, subscriber equipment is based on the power rising space of one group of predefined calculation of parameter subframe i component carrier k, thereby for carrying out scheduling of resource and link circuit self-adapting provides power rising space information timely in the base station.Herein, i, k are sequence number only, are not construed as limiting the invention.
For ease of understanding, among the method embodiment two to four, introduce the notion of virtual PUSCH.But the present invention is not limited to virtual PUSCH, and other do not have virtual PUSCH, but is included within protection scope of the present invention equally according to the power rising space of default evaluate parameter calculating subframe i component carrier k.
Method embodiment two:
Fig. 3 is the flow chart according to the inventive method embodiment two power rising space methods to set up.As shown in Figure 3, when subframe did not have Physical Uplink Control Channel PUSCH to send on component carrier or only be re-transmission PUSCH, present embodiment comprised:
Step S302: the virtual PUSCH on the definition component carrier, the evaluate parameter of default PUSCH;
Step S304: the transmitting power of estimating of calculating virtual PUSCH according to evaluate parameter;
Step S306: the maximum transmission power that obtains component carrier;
Step S308: estimate the transmitting power rated output rising space according to the maximum transmission power of component carrier and virtual PUSCH.
In the present embodiment, evaluate parameter can be the virtual PUSCH bandwidth of representing with resource block number, and virtual PUSCH bandwidth is determined according to the system bandwidth of component carrier.Perhaps evaluate parameter is a bias, and bias is determined by the system bandwidth of component carrier.It perhaps is the power bias of determining according to the transformat of PUSCH.It perhaps is the maximum transmission power of component carrier.Certainly, also can be two in the above-mentioned evaluate parameter, three, perhaps four.
In the present embodiment, evaluate parameter comprises the virtual PUSCH bandwidth of representing with resource block number, the power bias of determining according to the transformat of virtual PUSCH, and one or more in the maximum transmission power of component carrier.
Perhaps, evaluate parameter comprises bias, and one or more in the maximum transmission power of component carrier.
In the present embodiment, when subscriber equipment does not have PUSCH to send on the one-component carrier wave, or only have and retransmit PUSCH when sending, subscriber equipment is based on the power rising space of one group of current described component carrier of predefined calculation of parameter subscriber equipment, thereby for carrying out scheduling of resource and link circuit self-adapting provides power rising space information timely in the base station.
Method embodiment three:
When having PUSCH on subframe i component carrier k, subscriber equipment sends, or when only having the PUSCH of re-transmission to send, defining virtual PUSCH.Below will take two kinds of methods to calculate the transmitting power of estimating of virtual PUSCH according to default evaluate parameter.
(1) on subframe i component carrier k, do not have PUSCH to send, or when only having the PUSCH of re-transmission to send, the transmitting power of estimating of virtual PUSCH is
P′ PUSCH(i，k)＝10log 10(M′ PUSCH(i，k))+P O_PUSCH(j，k)+α(j，k)·PL(k)+Δ′ TF(i，k)+f(i，k)[dBm]，
Wherein, M ' PUSCH(i k) can be one of evaluate parameter, is a predefined value, represents the bandwidth of virtual PUSCH, represents with the number of Resource Block RB, such as M ' PUSCH(i, k)=0, or M ' PUSCH(i, k)=5, or M ' PUSCH(i, k)=10;
Preferably, M ' PUSCH(i is to determine according to the system bandwidth of component carrier k k), such as when the system bandwidth of component carrier k less than 10MHz, M ' PUSCH(i, k)=5; When the system bandwidth of component carrier k more than or equal to 10MHz, M ' PUSCH(i, k)=10.
P O_PUSCH(j k) is based on the open loop power control parameter of component carrier k, is disposed by high level;
(j k) is based on the road loss compensation factor of component carrier k to α, is disposed by high level;
PL (k) is that the descending path loss that the subscriber equipment end is measured and calculated is estimated, is used to estimate the up path loss of component carrier k;
Δ ' TF(i k) can be one of evaluate parameter, is a predefined value, represents the power bias relevant with the transformat of virtual PUSCH, such as Δ ' TF(i, k)=0;
(i k) is the current power control adjustment state of the PUSCH on the component carrier k to f.
For example, on subframe i component carrier k, do not have PUSCH to send, or when only having the PUSCH of re-transmission to send, the transmitting power of estimating of virtual PUSCH is:
(1) as M ' PUSCH(i, k) and Δ ' TF(i, when k) being default evaluate parameter,
If get M ' PUSCH(i, k)=0 and Δ ' TF(i, k)=0,
P′ PUSCH(i，k)＝P O_PUSCH(j，k)+α(j，k)·PL(k)+f(i，k)[dBm]，
Or, if get M ' PUSCH(i, k)=5 and Δ ' TF(i, k)=0,
P′ PUSCH(i，k)＝10log 105+P O_PUSCH(j，k)+α(j，k)·PL(k)+f(i，k)[dBm]，
Or, if get M ' PUSCH(i, k)=10 and Δ ' TF(i, k)=0,
P′ PUSCH(i，k)＝10+P O_PUSCH(j，k)+α(j，k)·PL(k)+f(i，k)[dBm]。
(2) as M ' PUSCH(i, when k) being the evaluate parameter of presetting,
If get M PUSCH(i, k)=0,
P ' PUSCH(i, k)=P O_PUSCH(j, k)+α (j, k) PL (k)+Δ ' TF(i, k)+f (i, k) [dBm], or, if get M ' PUSCH(i, k)=5,
P ' PUSCH(i, k)=10log 105+P O_PUSCH(j, k)+α (j, k) PL (k)+Δ ' TF(i, k)+f (i, k) [dBm], or, if get M ' PUSCH(i, k)=10
P′ PUSCH(i，k)＝10+P O_PUSCH(j，k)+α(j，k)·PL(k)+Δ′ TF(i，k)+f(i，k)[dBm]。
Preferably, Δ ' TF(i, k)=0 or Δ ' TF(i, k)=Δ TF(i-n, k), wherein i-n is the subframe numbering that has PUSCH to send described subscriber equipment the last time on component carrier k, Δ TF(i-n k) is the power bias of the PUSCH that sends of described subscriber equipment on subframe i-n component carrier k.
(3) when Δ ' TF(i, when k) being the evaluate parameter of presetting,
If get Δ ' TF(i, k)=0,
P′ PUSCH(i，k)＝10log 10(M′ PUSCH(i，k))+P O_PUSCH(j，k)+α(j，k)·PL(k)+f(i，k)[dBm]。
Preferably, M ' PUSCH(i, k)=0 or M ' PUSCH(i, k)=M PUSCH(i-n, k), wherein i-n is the subframe numbering that has PUSCH to send described subscriber equipment the last time on component carrier k, M PUSCH(i-n k) is the bandwidth of the PUSCH that sends of described subscriber equipment on subframe i-n component carrier k.
(2) on subframe i component carrier k, do not have PUSCH to send, or when only having the PUSCH of re-transmission to send, the transmitting power of estimating of virtual PUSCH is
P′ PUSCH(i，k)P O_PUSCH(j，k)+α(j，k)·PL(k)+f(i，k)+φ[dBm]。
Wherein,
Figure BSA00000161987800141
Can be one of evaluate parameter, be a predefined bias.
Preferably,
Figure BSA00000161987800142
Be to determine according to the system bandwidth of component carrier k, such as when the system bandwidth of component carrier k less than 10MHz,
Figure BSA00000161987800143
When the system bandwidth of component carrier k more than or equal to 10MHz,
For example, when not having PUSCH to send on the subframe i component carrier k, the transmitting power of estimating of virtual PUSCH is
If get P PUSCH(i, k)=P O_PUSCH(j, k)+α (j, k) PL (k)+f (i, k) [dBm],
Or, if get φ=7, P PUSCH(i, k)=7+P O_PUSCH(j, k)+α (j, k) PL (k)+f (i, k) [dBm],
Or, if get φ=10, P PUSCH(i, k)=10+P O_PUSCH(j, k)+α (j, k) PL (k)+f (i, k) [dBm],
Present embodiment is among the embodiment, and the step that PUSCH estimates the transmitting power setting has been described in detail, and have whole beneficial effects of embodiment one, and exploitativeness is stronger.
Method embodiment four:
Present embodiment will be described the calculating of two kinds of power rising spaces.Send when subscriber equipment has PUSCH on subframe i component carrier k, or when only having the PUSCH of re-transmission to send, the first kind power rising space of subscriber equipment subframe i component carrier k is,
PH typel(i，k)＝P CMAX(k)-P′ PUSCH(i)[dB]。
Wherein, P ' PUSCH(i) [dBm] is the transmitting power of estimating of virtual PUSCH, and can be the transmitting power of estimating according to the definite virtual PUSCH of method among the embodiment two.
In addition, P CMAX(k) [dBm] is the maximum transmission power of component carrier k, also can be used as evaluate parameter.Preferably, P CMAX(k) [dBm] is the maximum transmission power of the component carrier k of base station configuration; Or, P CMAX(k) [dBm] is the maximum transmission power of the component carrier k of subscriber equipment setting.Preferably, the maximum transmission power of the component carrier k of subscriber equipment setting is to determine according to the relevant configuration of virtual PUSCH.
If subscriber equipment needs to calculate the second class power rising space on subframe i component carrier k, then subscriber equipment at the second class power rising space of subframe i component carrier k is,
PH type 2 ( i , k ) = 10 log 10 ( 10 P ~ CMAX ( k ) / 10 - 10 P PUCCH ( i , k ) / 10 10 P PUSCH ′ ( i , k ) / 10 ) [ dB ] .
Wherein, when having PUCCH to send on the subframe i component carrier k, P PUCCH(i, k) [dBm] is subscriber equipment is estimated the PUCCH send on subframe i component carrier k the transmitting power of estimating;
When not having PUSCH to send on the subframe i component carrier k, P PUCCH(i, k) [dBm] be subscriber equipment definition virtual PUCCH estimate transmitting power, can be the transmitting power of estimating of the virtual PUSCH that determines according to method among the embodiment two.
Figure BSA00000161987800162
It is the maximum transmission power of component carrier k.Preferably,
Figure BSA00000161987800163
It is the maximum transmission power of the component carrier k of base station configuration; Or,
Figure BSA00000161987800164
It is the maximum transmission power of the component carrier k of subscriber equipment setting;
Preferably, when having PUCCH to send on the subframe i component carrier k, the maximum transmission power of the component carrier k of subscriber equipment setting is to determine according to the relevant configuration of virtual PUSCH and PUCCH;
When not having PUCCH to send on the subframe i component carrier k, the maximum transmission power of the component carrier k of subscriber equipment setting is to determine according to the relevant configuration of virtual PUSCH and virtual PUCCH.
Preferably, to the first kind and the second class power rising space, the maximum transmission power of component carrier k is got different value, promptly
Figure BSA00000161987800165
Present embodiment is among the embodiment, and the step of the setting of the power rising space has been described in detail, and have whole beneficial effects of embodiment one, and exploitativeness is stronger.
Device embodiment one:
Present embodiment discloses the device that a kind of power rising space is provided with, be used for if on subframe i component carrier k, do not have Physical Uplink Control Channel PUSCH to send or when only having the PUSCH of re-transmission to send, calculate the power rising space of subframe i component carrier k according to default one or more evaluate parameters.
In the present embodiment, evaluate parameter is in the following parameter one or multinomial: the maximum transmission power of the PUSCH bandwidth of representing with resource block number, the power bias of determining according to the transformat of PUSCH, bias, component carrier k.
Preferably, in the present embodiment, evaluate parameter is: the PUSCH bandwidth of representing with resource block number; The power bias definite according to the transformat of PUSCH; Maximum transmission power with component carrier.Preferably, in the present embodiment, evaluate parameter can also be the maximum transmission power of bias and component carrier.
The device of power rising space setting can be positioned at user equipment side, the related description that the method that present embodiment is realized can reference method embodiment one to four, and have the foregoing description whole an effect arranged, no longer repeat herein.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (18)

1. the method that the power rising space is provided with is characterized in that, when not having Physical Uplink Control Channel PUSCH transmission or only have the PUSCH of re-transmission to send on subframe i component carrier k as if subscriber equipment, comprising:
Subscriber equipment calculates the power rising space of described subframe i component carrier k according to default one or more evaluate parameters.
2. method according to claim 1, it is characterized in that described evaluate parameter is in the following parameter one or multinomial: the maximum transmission power of the PUSCH bandwidth of representing with resource block number, the power bias of determining according to the transformat of PUSCH, bias, described component carrier k.
3. method according to claim 2 is characterized in that, described evaluate parameter is:
The described PUSCH bandwidth of representing with resource block number; The described power bias of determining according to the transformat of PUSCH; Maximum transmission power with described component carrier.
4. method according to claim 3 is characterized in that, described subscriber equipment is on described subframe i component carrier k, and the first kind power rising space is,
PH typel(i，k)＝P CMAX(k)-{10log 10(M′ PUSCH(i，k))+P O_PUSCH(j，k)+α(j，k)·PL(k)+Δ′ TF(i，k)+f(i，k)}；
Wherein, P CMAX(k) be the maximum transmission power of component carrier k; M ' PUSCH(i k) represents the PUSCH bandwidth for described with resource block number; P O_PUSCH(j k) is based on the open loop power control parameter of described component carrier k; (j k) is based on the road loss compensation factor of described component carrier k to α; PL (k) is that the descending path loss that described subscriber equipment is measured and calculated is estimated; Δ ' TF(i k) is the relevant power bias of transformat described and PUSCH; (i k) is the power control adjustment state of the PUSCH on the subframe i component carrier k to f; The described bias of φ; Or second the class power rising space be,
PH type 2 ( i , k ) = 10 log 10 ( 10 P ~ CMAX ( k ) / 10 - 10 P PUCCH ( i , k ) / 10 10 P PUSCH ′ ( i , k ) / 10 ) ,
Wherein,
Figure FSA00000161987700022
Maximum transmission power for described component carrier k; P PUCCH(i k) is the transmitting power of PUCCH, when described subscriber equipment has PUCCH to send on subframe i component carrier k, and described P PUCCH(i k) is the transmitting power of estimating of described PUCCH; Or when described subscriber equipment does not have PUCCH to send on subframe i component carrier k, described P PUCCH(i, the described PUCCH that k) to be described subscriber equipment calculate according to default evaluate parameter estimates transmitting power; P ' P USCH(i k) is P ' PUSCH(i, k)=10log 10(M ' PUSCH(i, k))+P O_PUSCH(j, k)+α (j, k) PL (k)+Δ ' TF(i, k)+f (i, k).
5. method according to claim 2 is characterized in that, described evaluate parameter is: the maximum transmission power of described bias and described component carrier.
6. method according to claim 5 is characterized in that, described subscriber equipment is on described subframe i component carrier k, and the first kind power rising space is,
Wherein, P CMAx(k) be the maximum transmission power of component carrier k; M ' PUSCH(i k) represents the PUSCH bandwidth for described with resource block number; P O_PUSCH(j k) is based on the open loop power control parameter of described component carrier k; (j k) is based on the road loss compensation factor of described component carrier k to α; PL (k) is that the descending path loss that described subscriber equipment is measured and calculated is estimated; Δ TF(i k) is the relevant power bias of transformat described and PUSCH; (i k) is the power control adjustment state of the PUSCH on the subframe i component carrier k to f; The described bias of φ; Or second the class power rising space be,
PH type 2 ( i , k ) = 10 log 10 ( 10 P ~ CMAX ( k ) / 10 - 10 P PUCCH ( i , k ) / 10 10 P PUSCH ′ ( i , k ) / 10 ) ,
Wherein,
Figure FSA00000161987700025
Maximum transmission power for described component carrier k; P PUCCH(i k) is the transmitting power of PUCCH, when described subscriber equipment has PUCCH to send on subframe i component carrier k, and described P PUCCH(i k) is the transmitting power of estimating of described PUCCH; Or when described subscriber equipment does not have PUCCH to send on subframe i component carrier k, described P PUCCH(i, the described PUCCH that k) to be described subscriber equipment calculate according to default evaluate parameter estimates transmitting power; P ' PUSCH(i k) is
Figure FSA00000161987700031
7. according to claim 4 or 6 described methods, it is characterized in that to the first kind and the second class power rising space, the maximum transmission power of component carrier k is got different value, promptly
Figure FSA00000161987700032
8. method according to claim 2 is characterized in that, the described PUSCH bandwidth of representing with resource block number is determined according to the system bandwidth of described component carrier.
9. method according to claim 2 is characterized in that, described PUSCH bandwidth is 0.
10. method according to claim 2 is characterized in that, the relevant power bias of transformat described and PUSCH is 0.
11. method according to claim 2 is characterized in that, described bias is determined according to the system bandwidth of described component carrier.
12. method according to claim 2 is characterized in that, described bias is 0.
13. method according to claim 2 is characterized in that, the maximum transmission power of described component carrier is the maximum transmission power of described component carrier of base station configuration or the maximum transmission power of the described component carrier that subscriber equipment is provided with.
14. the device that the power rising space is provided with is characterized in that:
Be used for if on subframe i component carrier k, do not have Physical Uplink Control Channel PUSCH to send or when only having the PUSCH of re-transmission to send, calculate the power rising space of described subframe i component carrier k according to default one or more evaluate parameters.
15. device according to claim 14, it is characterized in that described evaluate parameter is in the following parameter one or multinomial: the maximum transmission power of the PUSCH bandwidth of representing with resource block number, the power bias of determining according to the transformat of PUSCH, bias, described component carrier k.
16. device according to claim 15 is characterized in that, described evaluate parameter is: the PUSCH bandwidth of representing with resource block number; The power bias definite according to the transformat of PUSCH; Maximum transmission power with described component carrier.
17. method according to claim 15 is characterized in that, described evaluate parameter is: the maximum transmission power of bias and described component carrier.
18. according to each described method among the claim 14-17, it is characterized in that, be positioned at user equipment side.
CN201010212113.XA 2010-06-23 2010-06-23 The method and device that power climbing space is arranged Expired - Fee Related CN101883417B (en)

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