CN102724745B

CN102724745B - Poewr control method, subscriber equipment and base station

Info

Publication number: CN102724745B
Application number: CN201110077082.6A
Authority: CN
Inventors: 张兴炜; 吕永霞; 官磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Filing date: 2011-03-29
Publication date: 2016-12-14
Anticipated expiration: 2031-03-29

Abstract

The embodiment of the invention discloses a kind of Poewr control method, subscriber equipment and base station, it is possible under the state of carrier aggregation of different ratio, carry out power control.The method comprise the steps that user equipment (UE) receives the transmitter power control TPC command that base station sends, described TPC command is for the power adjustment of one carrier wave of instruction；If UE does not sends Physical Uplink Control Channel PUCCH on the previous sub-frame of uplink of the current sub-frame of uplink of one carrier wave, then UE launches power according to this UE PUCCH during the last PUCCH of transmission in multiple carrier waves and described power adjustment carries out TPC accumulation, the PUCCH of the one carrier wave after being updated launches power, and the plurality of carrier wave includes one carrier wave.The embodiment of the present invention also provides for a kind of subscriber equipment and base station.The embodiment of the present invention can carry out power control under the state of carrier aggregation of different ratio.

Description

Poewr control method, subscriber equipment and base station

Technical field

The present invention relates to the communications field, particularly relate to a kind of Poewr control method, subscriber equipment and base station.

Background technology

Senior Long Term Evolution (LTE-A, Advance Long Term Evolution) system is to LTE system The enhancing of system, carrier convergence (CA, Carrier Aggregation) technology is expanded by lte-a system as it The method of exhibition system bandwidth, the main thought of CA is exactly by multiple component carrier (CC, Component Carrier) carrier wave of a bigger bandwidth is pooled, to support high data rate.

Under the CA scene of LTE-A version 10, a subscriber equipment (UE, User Equipment) At most can support 5 CC, for time division duplex (TDD, Time Division Duplex) system, Need to use the configuration of same tdd mode ascending-descending subframes for carrying out multiple CC of carrier convergence CA.

Multiple CC of UE include main carrier (PCC, Primary Component Carrier) and auxiliary Carrier wave (SCC, Secondary Component Carrier), wherein, the Physical Uplink Control Channel of UE (PUCCH, Physical Uplink Control CHannel) information can only be on the sub-frame of uplink of PCC Send.

For PCC, when UE receive transmitter power control command that base station sends (TPC, Transmitter Power Control) time, UE can inquire about the PUCCH of a sub-frame of uplink and launch merit Rate, and launch power according to the PUCCH that inquires and carry out TPC accumulation thus know current sub-frame of uplink On PUCCH launch power.

Along with the development of prior art, LTE-A can carry out the carrier aggregation of different ratio, i.e. UE is many Individual CC can use different tdd mode ascending-descending subframes to configure, in this case, in order to keep Synchronous hybrid automatic repeat request (HARQ, Hybrid Automatic Repeat reQuest), for certain Needing to feed back the time point of A/N (ACK/NACK) a bit, the subframe that PCC may be now corresponding is descending Subframe, thus the PUCCH that originally can only send on PCC then may be at certain now corresponding son Frame is to send on the SCC of sub-frame of uplink, for compatible consideration, as long as the present sub-frame of PCC is upper Row subframe, then PUCCH sends out on PCC, is only descending sub frame and this son when the present sub-frame of PCC Just consider when frame needs to send A/N on SCC, to send PUCCH, so SCC is not on each Row subframe is all used for sending PUCCH, it is also possible to only send Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared CHannel) information, when UE needs the TPC according to receiving to carry out merit When rate adjusts, if the previous sub-frame of uplink on this SCC does not send PUCCH, then UE is not Power control can be carried out according to the mode of LTE-A version 10, therefore prior art is not given at difference The concrete mode of power control is carried out under the state of carrier aggregation of proportioning.

Summary of the invention

Embodiments provide a kind of Poewr control method, subscriber equipment and base station, it is possible to not With carrying out power control under the state of carrier aggregation of proportioning.Described technical scheme is accomplished by:

A kind of Poewr control method, including:

User equipment (UE) receives the transmitter power control TPC command that base station sends, described TPC command For indicating the power adjustment of a carrier wave；

If UE does not sends physics on the previous sub-frame of uplink of the current sub-frame of uplink of one carrier wave Ascending control channel PUCCH, then UE sends PUCCH according to this UE is the last in multiple carrier waves Time PUCCH launch power and described power adjustment and carry out TPC accumulation, the institute after being updated The PUCCH stating a carrier wave launches power, and the plurality of carrier wave includes one carrier wave.

A kind of Poewr control method, including:

If not receiving user on the previous sub-frame of uplink of the current sub-frame of uplink that base station is on a carrier wave Equipment UE send Physical Uplink Control Channel PUCCH, the most described base station according to this UE at multiple carrier waves PUCCH during the middle the last PUCCH of transmission launches power and determines that the power of one carrier wave adjusts Value, the plurality of carrier wave includes one carrier wave；

Base station generates the transmitter power of the power adjustment carrying one carrier wave and controls TPC command；

Described TPC command is sent to described UE by base station, with the power to UE notice one carrier wave Adjusted value.

A kind of Poewr control method, including:

User equipment (UE) receives the transmitter power control TPC command that base station sends, described TPC command For indicating the power adjustment of SCC；

UE according on described SCC the last send Physical Uplink Control Channel PUCCH time PUCCH launches power and described power adjustment carries out TPC accumulation, the described SCC after being updated PUCCH launch power.

A kind of Poewr control method, including:

Base station according to UE on SCC the last send Physical Uplink Control Channel PUCCH time PUCCH launches power and determines the power adjustment of described SCC；

Base station generates the transmitter power of the power adjustment carrying described SCC and controls TPC command；

Described TPC command is sent to described UE by base station, to notify that to UE the power of described SCC is adjusted Whole value.

A kind of subscriber equipment, including:

Order receives unit, and the transmitter power sent for receiving base station controls TPC command, described TPC Order is for the power adjustment of one carrier wave of instruction；

Power accumulation unit, for when described subscriber equipment is at the current sub-frame of uplink of one carrier wave When not sending Physical Uplink Control Channel PUCCH on previous sub-frame of uplink, according to this UE in multiple loads In ripple, PUCCH during the last PUCCH of transmission launches power and described power adjustment is carried out TPC accumulates, and the PUCCH of the one carrier wave after being updated launches power, the plurality of carrier wave Including one carrier wave.

A kind of subscriber equipment, including:

Receiving unit, the transmitter power sent for receiving base station controls TPC command, and described TPC orders Order is for indicating the power adjustment of SCC；

Cumulative unit, for sending Physical Uplink Control Channel PUCCH according to the last on described SCC Time PUCCH launch power and described power adjustment and carry out TPC accumulation, the institute after being updated The PUCCH stating SCC launches power.

A kind of base station, including:

Determine unit, previous up for when the described base station current sub-frame of uplink on a carrier wave When not receiving the Physical Uplink Control Channel PUCCH that user equipment (UE) sends in subframe, then according to being somebody's turn to do UE PUCCH during the last PUCCH of transmission in multiple carrier waves launches power and determines one The power adjustment of carrier wave, the plurality of carrier wave includes one carrier wave；

Signal generating unit, controls for generating the transmitter power of the power adjustment carrying one carrier wave TPC command；

Transmitting element, for being sent to described UE by described TPC command, to notify one to UE The power adjustment of carrier wave.

A kind of base station, including:

Power determining unit, for sending Physical Uplink Control Channel according to UE is the last on SCC PUCCH during PUCCH launches power and determines the power adjustment of described SCC；

Order signal generating unit, controls for generating the transmitter power of the power adjustment carrying described SCC TPC command；

Command sending unit, for being sent to described UE by described TPC command, with described to UE notice The power adjustment of SCC.

As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that

In the embodiment of the present invention, when UE is after base station receives TPC command, if at a carrier wave The previous sub-frame of uplink of current sub-frame of uplink does not sends PUCCH, then UE can obtain according to multiple carrier waves PUCCH when taking the last PUCCH of transmission launches power and according to this transmitting power and TPC Order carries out TPC accumulation, launches power owing to UE can obtain PUCCH according to multiple carrier waves, and PUCCH can be sent at the sub-frame of uplink of certain carrier wave, so UE can get when sending A/N PUCCH launches the history value of power and carries out power adjustment, therefore, it is possible in the carrier aggregation feelings of different ratio Power control is carried out under condition.

Accompanying drawing explanation

Fig. 1 is one embodiment schematic diagram of Poewr control method of the present invention；

Fig. 2 is another embodiment schematic diagram of Poewr control method of the present invention；

Fig. 3 is another embodiment schematic diagram of Poewr control method of the present invention；

Fig. 4 is another embodiment schematic diagram of Poewr control method of the present invention；

Fig. 5 is another embodiment schematic diagram of Poewr control method of the present invention；

Fig. 6 is another embodiment schematic diagram of Poewr control method of the present invention；

Fig. 7 is TDD different ratio carrier aggregation schematic diagram of the present invention；

Fig. 8 is one embodiment schematic diagram of subscriber equipment of the present invention；

Fig. 9 is another embodiment schematic diagram of subscriber equipment of the present invention；

Figure 10 is another embodiment schematic diagram of subscriber equipment of the present invention；

Figure 11 is another embodiment schematic diagram of subscriber equipment of the present invention；

Figure 12 is one, base station of the present invention embodiment schematic diagram；

Figure 13 is another embodiment schematic diagram of base station of the present invention.

Detailed description of the invention

Embodiments provide a kind of Poewr control method, subscriber equipment and base station, it is possible to not With carrying out power control under the state of carrier aggregation of proportioning.

Referring to Fig. 1, one embodiment of Poewr control method of the present invention includes:

101, UE receives the TPC command that base station sends；

In the present embodiment, can send to UE when base station determines and needs to be controlled the transmitting power of UE TPC command, this TPC command is for the power adjustment of one carrier wave of instruction, i.e. this TPC command is corresponding One power adjustment of some carrier wave.

It should be noted that in the present embodiment, base station can be according to the Signal Interference and Noise Ratio (SINR) of UE And Signal Interference and Noise Ratio threshold value decides whether to be controlled the transmitting power of UE, Ke Yili Solving, in actual applications, base station can also decide whether the transmitting to UE by other means Power is controlled, and is not construed as limiting the most herein.

If 102 UE do not send physics on the previous sub-frame of uplink of the current sub-frame of uplink of a carrier wave Ascending control channel PUCCH, then UE sends PUCCH according to this UE is the last in multiple carrier waves Time PUCCH launch power and power adjustment and carry out TPC accumulation, this after being updated The PUCCH of carrier wave launches power.

In the present embodiment, multiple carrier waves can be distributed for UE in base station, and these carrier waves are referred to as configuring carrier set.

In various embodiments of the present invention, carrying out TPC accumulation is i.e. to send out PUCCH by power adjustment Penetrate power to adjust.This last time sends PUCCH and refers to and current time, such as present sub-frame, On time, recent PUCCH sends.

UE can send and receive control information activating on carrier wave, and these activate carrier wave can be by uplink/downlink Scheduling is used for transmitting data.

After UE receives TPC command, if UE is at current sub-frame of uplink previous of a carrier wave Individual sub-frame of uplink does not sends PUCCH, then UE can obtain the last time transmission according to multiple carrier waves PUCCH during PUCCH launches power, comprises this carrier wave in the plurality of carrier wave.

After PUCCH when UE gets the last PUCCH of transmission launches power, the most permissible TPC accumulation is carried out according to the power adjustment that this PUCCH transmitting power and TPC command are corresponding, from And the PUCCH after being updated launches power.

In the present embodiment, when UE is after base station receives TPC command, if current at a carrier wave The previous sub-frame of uplink of sub-frame of uplink does not sends PUCCH, then UE can obtain according to multiple carrier waves PUCCH during nearly once transmission PUCCH launches power and according to this transmitting power and TPC command Carry out TPC accumulation, launch power owing to UE can obtain PUCCH according to multiple carrier waves, and when sending out PUCCH will necessarily be sent at the sub-frame of uplink of certain carrier wave, so no matter UE needs to send when sending A/N The current sub-frame of uplink of PUCCH is at which carrier wave, and UE the most always can get PUCCH and launch The history value of power, therefore, it is possible to carry out power control under the state of carrier aggregation of different ratio.

For ease of understanding, with an object lesson, Poewr control method of the present invention is described in detail below, Referring to Fig. 2, another embodiment of Poewr control method of the present invention includes:

201, UE receives the TPC command that base station sends；

Content described by step 101 in step 201 in the present embodiment and aforementioned embodiment illustrated in fig. 1 Similar, here is omitted.

202, UE determines each carrier wave；

UE can send and receive control information activating on carrier wave, and these activate carrier wave can be by uplink/downlink Scheduling is used for transmitting data, and UE can know current each carrier wave, comprises this load in these all carrier waves Ripple.

It should be noted that sequencing the most fixing between step 202 and step 201, permissible First carry out step 201, it is also possible to first carry out step 202, it is also possible to perform step 201 and 202 simultaneously, Specifically it is not construed as limiting herein.

203, for each activation carrier wave, UE calculates the last transmission with on this carrier wave of this current time Time difference between PUCCH；

In the present embodiment, after UE determines carrier wave, this current time can be calculated nearest with on this carrier wave Once sending the time difference between PUCCH, concrete calculation can be:

UE can inquire about on each carrier wave according to current sub-frame of uplink and be in same with this current sub-frame of uplink The reference subframe of time slot, owing to each carrier wave is sequential alignment, so UE all can inquire about on each carrier wave To corresponding reference subframe.

Determining with reference to after subframe, for each carrier wave, UE back can look into from the beginning of with reference to subframe Ask on this carrier wave the last subframe sending PUCCH, then calculate this subframe and with reference between subframe time Between poor.

204, the carrier wave that UE query time difference is minimum；

After being calculated the time difference of each carrier wave, UE chooses minima from the time difference of each carrier wave, and Determine the carrier wave corresponding to this time difference.

205, PUCCH when UE obtains the last PUCCH of transmission on the carrier wave inquired launches merit Rate；

UE obtains the last when sending PUCCH from the carrier wave that this time difference minima is corresponding PUCCH launches power.

206, UE carries out TPC according to the power adjustment that PUCCH transmitting power and TPC command are corresponding Accumulation, the PUCCH after being updated launches power.

In the present embodiment, UE then can launch power and TPC command pair according to the PUCCH got The power adjustment answered carries out TPC accumulation, and the PUCCH after being updated launches power, the most permissible With reference to equation below:

P_PUCCH(i)=min (P_CMAX, P_{0_PUCCH}+PL+h(n_CQI, n_HARQ)+Δ_{F_PUCCH} (F)+g(i))；

Wherein P_PUCCHI () represents that the PUCCH in subframe i launches power, P_CMAX=min (P_EMAX, P_UMAX), P_CMAXRepresent UE actual emission power, take the maximum power transmission ability of UE (by UE Grade determine) and the maximum transmission power that issues of network side in less that.

P_{0_PUCCH}Representing PUCCH open loop power, PL represents path loss, Δ_{F_PUCCH}(F) represent It is the compensation to different PUCCH format, h (n_CQI, n_HARQ) it is to identical PUCCH format The compensation of lower different ascending control information (UCI, Uplink Control Information) bit number, n_CQI It is the bit number of CQI, n_HARQIt it is the bit number of HARQ.

G (i) is the PUCCH power dynamic power control adjustment amount of present sub-frame i, and computing formula is:

g (i) = g (i - 1) + Σ_{m = 0}^{M - 1} δ_{PUCCH} (i - k_{m});

For TDD, if subframe i is not sub-frame of uplink, then g (i)=g (i-1), δ_PUCCHFor TPC The power adjustment that the TPC command carried in order is corresponding.

It should be noted that the TPC command that UE receives is equal at least one bit, UE and base station Presetting power adjustment set, UE can determine from power adjustment set according to this TPC command Corresponding power adjustment.

Such as power adjustment collection in DCI format 3 is combined into [-1,0,1,3], now TPC command It is 2 bits, such as when TPC command is 00, then it represents that power adjustment is-1dB, TPC command When being 11, then it represents that power adjustment is+3dB.

Power adjustment collection in DCI format 3A is combined into [-1,1], and now TPC command is 1 When bit, such as TPC command are 0, then it represents that power adjustment is-1dB, when TPC command is 1, Then represent that power adjustment is+1dB.

UE can determine the power adjustment of correspondence according to above-mentioned mode.

The PUCCH being referred on all carrier waves during the last PUCCH of transmission due to UE launches merit Rate, it is possible that certain error can be there is, in order to reduce this error, can use the following side Formula:

One, the amplitude of power adjustment is increased in the case of not changing TPC command bit number:

Such as, above-mentioned [-1,0,1,3] is changed into [-3,0,3,5], by above-mentioned [-1,1] Change [-3,3] etc. into, the most only illustrate with an example, it is to be understood that apply in reality In, it is also possible to use other amendment mode or numerical value.

In the manner, the bit number of TPC command does not change, and be originally 2 bits is now still 2 Bit, be originally 1 bit is now still 1 bit, but due to the width of power adjustment corresponding to bit Degree added than originally, it is possible to increase the amplitude of power adjustment.

Two, increase TPC command bit number, thus increase the amplitude of power adjustment:

Such as, 2 bits in DCI format 3 increase to 3 bits, then the power in DCI format 3 is adjusted Whole value set is readily modified as [-5 ,-3 ,-1,0,1,3,5,7], the most only says with an example Bright, it is to be understood that in actual applications, it is also possible to use other amendment mode or numerical value.

In the manner, the bit number of TPC command adds, and be originally 2 bits can be now 3 ratios Spy, be originally 1 bit can be now 2 bits, owing to adding bit number, so TPC command The number of corresponding power adjustment also added than originally, therefore, it is possible to increase the amplitude of power adjustment.

It should be noted that above two amendment mode needs by amended power adjustment set again It is arranged in UE and base station.

Three, the group number of increase power adjustment set:

In the present embodiment, UE can preset many groups power adjustment set, such as [-3,0,3,5], [-2,0,2,4], [-1,0,1,3] etc..

Then UE can determine, by the following mode, the power adjustment that TPC command is corresponding:

(1) the power adjustment set that UE acquiescence use amplitude is maximum, if UE finds not in use Support this amplitude, then use original preset power adjusted value set.

Such as, all of UE the most first gives tacit consent to use power adjustment set [-3,0,3,5], works as UE Find in use not support this amplitude, then use original power adjustment set, such as [-1,0,1, 3】。

(2) UE receives the wireless heterogeneous networks (RRC, Radio Resource Control) that base station sends Signaling, carries TPC group mark in this RRC signaling, and UE determines correspondence according to this TPC group mark Power adjustment set, and use this to determine the power adjustment set obtained.

It is understood that in actual applications, UE can determine in the way of using other to be needed to use Power adjustment set, be not construed as limiting the most herein.

It should be noted that in the present embodiment, UE can inquire on this carrier wave nearest one on each carrier wave The sub-frame of uplink of secondary transmission PUCCH, i.e. UE needs to distribute one for storing this information for each carrier wave Memory space.

It is understood that in actual applications, UE can also only arrange a memory space, due to respectively Carrier wave is alignment in sequential, and when needing to send PUCCH, only has a carrier wave and send PUCCH, so UE can be according to sequential, for whole carrier waves, stores in whole carrier wave nearest one The PUCCH of the carrier wave of secondary transmission PUCCH launches power.

In the present embodiment, when UE is after base station receives TPC command, if current at a carrier wave The previous sub-frame of uplink of sub-frame of uplink does not sends PUCCH, then UE can obtain according to all carrier waves PUCCH during nearly once transmission PUCCH launches power, and orders according to this transmitting power and TPC Order carries out TPC accumulation, launches power owing to UE can obtain PUCCH according to all carrier waves, and works as PUCCH will necessarily be sent at the sub-frame of uplink of certain carrier wave, so no matter UE needs to send out when sending A/N Sending the current sub-frame of uplink of PUCCH at which carrier wave, UE the most always can get PUCCH and send out Penetrate the history value of power, therefore, it is possible to carry out power control under the state of carrier aggregation of different ratio；

Secondly, in the present embodiment, UE can be according to base station instruction in RRC signaling from organizing power more Adjusted value set selects the power adjustment set of correspondence, it is possible to increase the amplitude of power adjustment, Make the process controlling power more accurate.

PUCCH in above-described embodiment, when UE is to obtain the last time transmission PUCCH on multiple carrier wave Launching power, in actual applications, UE can also obtain the last when sending PUCCH on SCC PUCCH launch power, specifically refer to Fig. 3, another embodiment of Poewr control method of the present invention includes:

301, UE receives the TPC command that base station sends；

In the present embodiment, can send to UE when base station determines and needs to be controlled the transmitting power of UE TPC command, this TPC command is for indicating the power adjustment of SCC, i.e. this TPC command correspondence SCC A power adjustment.

It should be noted that in the present embodiment, base station can be according to the Signal Interference and Noise Ratio of UE and letter Number interference-to-noise ratio threshold value decides whether to be controlled the transmitting power of UE, it is possible to understand that It is that in actual applications, base station can also decide whether the transmitting power to UE by other means It is controlled, is not construed as limiting the most herein.

302, UE according on SCC the last send Physical Uplink Control Channel PUCCH time PUCCH launches power and power adjustment carries out TPC accumulation, and the PUCCH after being updated launches Power.

After UE receives the TPC command that base station sends, know that needs carry out launching power and adjust, and And it is known that be specifically adjusted the transmitting power of SCC, then UE can obtain on this SCC PUCCH during the last PUCCH of transmission launches power.

In the present embodiment, when UE is after base station receives TPC command, then UE can obtain this SCC PUCCH during the upper the last PUCCH of transmission launches power, and according to this transmitting power and TPC Order carries out TPC accumulation, even if UE does not send PUCCH on the previous sub-frame of uplink of this SCC, UE the most always can get PUCCH and launch the history value of power, it is possible in the load of different ratio Power control is carried out in the case of ripple polymerization.

Further, UE can receive the radio resource control RRC signaling that base station sends, this RRC signaling In comprise TPC group mark；UE is according to the power adjustment set of this TPC group mark inquiry correspondence；UE In the power adjustment set inquired, this power adjustment is obtained according to this TPC command.If this SCC Time difference between the upper the last PUCCH of transmission and current sub-frame of uplink is more than the first preset numerical value, Then UE resets TPC accumulation.If on this SCC the last send PUCCH and current sub-frame of uplink it Between time difference more than preset second value, then UE is according to the actual emission power of UE, PUCCH Open loop power, path loss, the compensating parameter of different PUCCH format, different ascending control information bit The compensating parameter of number recalculates PUCCH and launches power.

For ease of understanding, with an object lesson, Poewr control method of the present invention is described in detail below, Referring to Fig. 4, another embodiment of Poewr control method of the present invention includes:

401, UE receives the TPC command that base station sends；

Content described by step 301 in step 401 in the present embodiment and aforementioned embodiment illustrated in fig. 3 Similar, here is omitted.

402, judge that time difference whether more than the first numerical value, the most then performs step 403, if it is not, then Perform step 406；

UE can be in this SCC, and from the beginning of current sub-frame of uplink, back inquiry the last time sends PUCCH during PUCCH launches power, sends out if inquiring PUCCH in certain subframe of this SCC Penetrate power, then can calculate the time difference between this subframe and current sub-frame of uplink, and judge this time difference Whether more than the first numerical value.

This first numerical value can be a default value, for example, length of 20 subframes, it is possible to understand that It is, if UE back inquires about 20 subframes does not inquires the last subframe sending PUCCH yet, Then UE can also continue inquiry, and is directly entered step 403.

403, judge that time difference whether more than second value, the most then performs step 404, if it is not, then Perform step 405；

In the present embodiment, second value is more than the first numerical value, and this second value can be a default value, The for example, length of 50 subframes, this step is similar with the process of abovementioned steps 202, and here is omitted.

404, the PUCCH after UE recalculates renewal launches power；

If the time between the last subframe sending PUCCH that UE inquires and current sub-frame of uplink Difference is more than second value, or the time span that UE back inquires about has exceeded second value, then illustrate UE is not transmitted across PUCCH on this SCC for a long time, even if inquiring transmission PUCCH further back PUCCH launch power, the most do not possess reference significance, so UE can be according to the actual transmission of UE Power, PUCCH open loop power, path loss, the compensating parameter of different PUCCH format, the most ibid Row controls the compensating parameter of information bit and recalculates PUCCH transmitting power, and concrete calculating process is permissible As follows:

P_{0_PUCCH}Representing PUCCH open loop power, PL represents path loss, Δ_{F_PUCCH}(F) represent It is the compensation to different PUCCH format, h (n_CQI, n_HARQ) it is to identical PUCCH format The compensation of lower different UCI bit number, n_CQIIt is the bit number of CQI, n_HARQIt it is the bit number of HARQ.

g (i) = g (i - 1) + Σ_{m = 0}^{M - 1} δ_{PUCCH} (i - k_{m});

During it should be noted that UE recalculates PUCCH transmitting power, then reacquire above-mentioned formula In parameters, and according to these parameters got recalculate PUCCH launch power, concrete Calculating process is the common knowledge of those skilled in the art, is not construed as limiting herein.

405, UE resets TPC accumulation, and calculates the transmitting power of the PUCCH after renewal；

If the time between the last subframe sending PUCCH that UE inquires and current sub-frame of uplink Difference is less than or equal to second value, but more than the first numerical value, then explanation UE does not has on this SCC in a short time Being transmitted across PUCCH, PUCCH when this last time sends PUCCH launches power in certain journey Possess reference significance on degree, then UE can reset TPC accumulation, and according to the TPC accumulation meter after resetting Calculate the PUCCH after updating and launch power.

Concrete, the g (i) in the formula of abovementioned steps 404 can be set to 0 by UE, and counts accordingly Calculate the PUCCH after updating and launch power.

406, UE carries out TPC according to the power adjustment that PUCCH transmitting power and TPC command are corresponding Accumulation, the PUCCH after being updated launches power.

In the present embodiment, if the last time that UE inquires sends the subframe of PUCCH and current up son Time difference between frame is less than the first numerical value, then explanation UE is the most just transmitted across PUCCH on this SCC, Then PUCCH transmitting power during the last transmission PUCCH has stronger reference significance.

UE then can be carried out according to the power adjustment that this PUCCH transmitting power and TPC command are corresponding TPC accumulates, and the PUCCH after being updated launches power, the public affairs of detailed process such as abovementioned steps 404 Shown in formula, here is omitted.

Such as merit in Downlink Control Information (DCI, Downlink Control Information) form 3 Rate adjusted value collection is combined into [-1,0,1,3], and now TPC command is 2 bits, such as TPC command When being 00, then it represents that power adjustment is-1dB, when TPC command is 11, then it represents that power adjustment For+3dB.

The PUCCH being referred on this carrier wave during the last PUCCH of transmission due to UE launches power, It is possible that certain error can be there is, in order to reduce this error, can be to use the following mode:

Three, the group number of increase power adjustment set:

(1) can determine that TPC group identifies according to the ability of UE, LTE redaction as stronger in ability (R11/R12) the power adjustment set of UE acquiescence use amplitude maximum, if UE sends out in use The most do not support this amplitude, then use original preset power adjusted value set.

Such as, the UE of all of redaction (R11/R12) the most first give tacit consent to use power adjustment set [-3, 0,3,5], when UE finds not support this amplitude in use, then original power adjustment set is used, Such as [-1,0,1,3].

(2) UE receives the RRC signaling that base station sends, and carries TPC group mark in this RRC signaling Knowing, UE determines corresponding power adjustment set according to this TPC group mark, and uses this to determine to obtain Power adjustment set.

In the present embodiment, when UE is after base station receives TPC command, and UE can obtain this SCC PUCCH during the upper the last PUCCH of transmission launches power, and according to this transmitting power and TPC Order carries out TPC accumulation, even if UE does not send PUCCH on the previous sub-frame of uplink of this SCC, UE the most always can get PUCCH and launch the history value of power, it is possible in the load of different ratio Power control is carried out in the case of ripple polymerization；

Secondly, in the present embodiment, send PUCCH and current sub-frame of uplink if the last on this SCC Between time difference more than preset the first numerical value, then UE resets TPC accumulation, if nearest this SCC on Once send the time difference between PUCCH and current sub-frame of uplink more than preset second value, then UE Recalculate PUCCH and launch power, so that the process that power controls is more accurate；

Again, in the present embodiment, UE can be according to base station instruction in RRC signaling from organizing power more Adjusted value set selects the power adjustment set of correspondence, it is possible to increase the amplitude of power adjustment, Make the process controlling power more accurate.

Poewr control method of the present invention is described by above-described embodiment from the angle of UE, below from base station Angle Poewr control method of the present invention is described:

Referring to Fig. 5, another embodiment of Poewr control method of the present invention includes:

If not receiving on the previous sub-frame of uplink of the current sub-frame of uplink that 501 base stations are on a carrier wave The PUCCH that UE sends, then according to this UE in multiple carrier waves the last send PUCCH time PUCCH launches power and determines the power adjustment of a carrier wave；

In the present embodiment, if on the previous sub-frame of uplink of the current sub-frame of uplink that base station is on a carrier wave Do not receive the PUCCH that UE sends, then base station can be according to this UE the last time in multiple carrier waves PUCCH when sending PUCCH launches power and determines the power adjustment of a carrier wave.

It should be noted that the plurality of carrier wave includes this carrier wave.

502, base station generates the TPC command of the power adjustment carrying a carrier wave；

TPC command can be generated, this TPC when base station determines and needs and be controlled the transmitting power of UE Order carries the power adjustment of this carrier wave.

503, TPC command is sent to UE by base station, to notify the power adjustment of a carrier wave to UE.

After base station generates TPC command, this TPC command can be sent to UE so that UE is carried out Corresponding power controls.

It should be noted that for the amplitude increasing power adjustment, base station can also carry out and operates as follows:

(1) base station determines that TPC group identifies；

In the present embodiment, can preserve the power adjustment set of many groups in base station, base station may determine that works as The TPC group mark that the front power adjustment set needing to use is corresponding, such as can be according to the ability of UE Information determines that TPC group identifies, or it is corresponding to give tacit consent to the power adjustment set first using amplitude maximum TPC group mark.

(2) base station sends the radio resource control RRC signaling comprising TPC group mark to UE.

After base station determines TPC group mark, the RRC comprising TPC group mark can be sent to UE Signaling so that UE is according to the power adjustment set of TPC group mark inquiry correspondence, and orders according to TPC Order obtains the power adjustment of correspondence in the power adjustment set inquired, to carry out power control.

In the present embodiment, the power adjustment set that base station preserves can be the power adjustment set of acquiescence, Can also be for the power adjustment set of extension, the mode of concrete extension can be with earlier figures 2 or Fig. 4 institute Showing that the extended mode described in embodiment is similar to, here is omitted.

In the present embodiment, if on the previous sub-frame of uplink of the current sub-frame of uplink that base station is on a carrier wave Do not receive the PUCCH that UE sends, then base station can be according to this UE the last time in multiple carrier waves PUCCH when sending PUCCH launches power and determines the power adjustment of a carrier wave, and by this power Adjusted value is sent to UE by TPC command so that UE can carry out power control；

Secondly, base station can carry TPC group mark in RRC signaling, is used for indicating UE from organizing merit more Rate adjusted value set selects the power adjustment set of correspondence, it is possible to increase the width of power adjustment Degree so that the process controlling power is more accurate.

Referring to Fig. 6, another embodiment of Poewr control method of the present invention includes:

601, PUCCH when base station sends PUCCH according to UE the last time on SCC launches merit Rate determines the power adjustment of SCC；

When base station determines UE the last transmission PUCCH on this SCC from SCC After PUCCH launches power, base station can be launched power according to this PUCCH and be determined the power of this SCC Adjusted value.

602, base station generates the TPC command of the power adjustment carrying SCC；

TPC command can be generated, this TPC when base station determines and needs and be controlled the transmitting power of UE Order carries the power adjustment of this SCC.

603, TPC command is sent to UE by base station, with the power adjustment to UE notice SCC.

It should be noted that for the amplitude increasing power adjustment, base station can with other operation, Concrete operations are similar with the content described by step 503 in aforementioned embodiment illustrated in fig. 5, the most superfluous State.

In the present embodiment, base station can according to UE on SCC the last send PUCCH time PUCCH launches power and determines the power adjustment of SCC, and this power adjustment is passed through TPC command It is sent to UE so that UE can carry out power control；

With an instantiation, Poewr control method of the present invention is illustrated below, refer to Fig. 7, Fig. 7 For TDD different ratio carrier aggregation schematic diagram of the present invention.

It can be seen from figure 7 that base station is UE is assigned with multiple carrier wave, wherein CC1, CC2 and CC3 is carrier wave.

CC1 is main carrier, and remaining two carrier wave is auxiliary carrier wave, and wherein CC1 is that tdd mode is upper and lower Row sub-frame configuration 1, CC2 is tdd mode ascending-descending subframes configuration 3, and CC3 is tdd mode up-downgoing Sub-frame configuration 0, i.e. base station be the carrier wave of UE distribution be the carrier aggregation of different ratio.Fig. 7 provides one The configuring condition of frame (10 subframes), D represents that descending sub frame, S represent that special subframe, U represent Row subframe, the grid of band oblique line represents the subframe sending PUCCH.

In the figure 7, the #2 subframe of CC1, #3 subframe, #7 subframe and #8 subframe are sub-frame of uplink, For sending PUCCH, the #2 subframe of CC2, #3 subframe and #4 subframe are sub-frame of uplink, for sending out Send the #2 subframe of PUSCH or PUCCH, CC2, #3 subframe, #4 subframe, #7 subframe, #8 subframe And #9 subframe is sub-frame of uplink, it is used for sending PUSCH or PUCCH.

UE sends PUCCH in the #2 subframe and #3 subframe of CC1, when arriving #4 subframe, also Need to send PUCCH, but now the #4 subframe of CC1 is descending sub frame, it is impossible to send PUCCH, then UE can use the #4 subframe of CC2 to send PUCCH；

In like manner, UE sends PUCCH in the #7 subframe and #8 subframe of CC1, when reaching #9 subframe Time, it is also desirable to send PUCCH, but now the #9 subframe of CC1 be descending sub frame, it is impossible to send PUCCH, And the #9 subframe of CC2 is also descending sub frame, then UE can use the #9 subframe of CC3 to send PUCCH.

Respectively acquisition process based on Fig. 7 is described below as aforesaid embodiment of the method:

One, PUCCH transmitting power during carrier wave interior acquisition the last time transmission PUCCH:

For CC1:

When UE sends PUCCH in #2 subframe, the #8 subframe in the previous frame of this carrier wave can be obtained PUCCH when sending PUCCH launches power as history value；

When UE #3 subframe send PUCCH time, can obtain #2 subframe send PUCCH time PUCCH launches power as history value；

When UE #7 subframe send PUCCH time, can obtain #3 subframe send PUCCH time PUCCH launches power as history value；

When UE #8 subframe send PUCCH time, can obtain #7 subframe send PUCCH time PUCCH launches power as history value.

For CC2:

When UE sends PUCCH in #4 subframe, #4 subframe in the previous frame of this carrier wave can be obtained and send out PUCCH when sending PUCCH launches power as history value, if #4 in the previous frame of this carrier wave Frame does not sends PUCCH, then continue to inquire about again #4 subframe in previous frame.

If #4 subframe does not all send PUCCH in upper two frames of this carrier wave, then explanation time difference is more than 20 Subframe lengths, then UE can reset TPC accumulation, described in detailed process and preceding method embodiment Process is similar to, and here is omitted.

If #4 subframe does not all send PUCCH in upper five frames of this carrier wave, then explanation time difference is more than 50 Subframe lengths, then UE can reset calculating PUCCH transmitting power, and detailed process is implemented with preceding method Process described in example is similar to, and here is omitted.

It should be noted that 20 subframe lengths described in the present embodiment and 50 subframe lengths are only For the object lesson in the present embodiment, it is to be understood that in actual applications, these numerical value can root Modify according to practical situation, be not construed as limiting the most herein.

For CC3:

When UE sends PUCCH in #9 subframe, #9 subframe in the previous frame of this carrier wave can be obtained and send out PUCCH when sending PUCCH launches power as history value, if #9 in the previous frame of this carrier wave Frame does not sends PUCCH, then continue to inquire about again #9 subframe in previous frame.

If #9 subframe does not all send PUCCH in upper two frames of this carrier wave, then explanation time difference is more than 20 Subframe lengths, then UE can reset TPC accumulation, described in detailed process and preceding method embodiment Process is similar to, and here is omitted.

If #9 subframe does not all send PUCCH in upper five frames of this carrier wave, then explanation time difference is more than 50 Subframe lengths, then UE can reset calculating PUCCH transmitting power, and detailed process is implemented with preceding method Process described in example is similar to, and here is omitted.

Two, PUCCH transmitting power during intercarrier acquisition the last time transmission PUCCH:

For CC1:

When UE sends PUCCH in #2 subframe, it may be determined that corresponding on CC1, CC2 and CC3 Reference subframe be #2 subframe, then can calculate and send with the last with reference to subframe on each carrier wave Time difference between PUCCH:

CC1 the last time sends the #8 subframe that PUCCH is CC1 previous frame, then the time difference of CC1 is The length of 4 subframes；

CC2 the last time sends the #4 subframe that PUCCH is CC2 previous frame, then the time difference of CC2 is The length of 8 subframes；

CC3 the last time sends the #9 subframe that PUCCH is CC3 previous frame, then the time difference of CC3 is The length of 3 subframes.

From the foregoing, it will be observed that the time difference of CC3 is minimum, being the length of 3 subframes, UE may determine that CC3 The last transmission PUCCH is the #9 subframe of CC3 previous frame, then UE sends PUCCH in #2 subframe Time, PUCCH when can obtain the #9 subframe transmission PUCCH of CC3 previous frame launches power conduct History value.

In like manner, when UE sends PUCCH in #3 subframe, can know that the time difference of CC1 is 1 The length of subframe, the time difference of CC2 is the length of 9 subframes, and the time difference of CC3 is 4 subframes Length, the time difference of CC1 is minimum, is the length of 1 subframe, and UE may determine that CC1 is the last Send the #2 subframe that PUCCH is CC1, then UE is when #3 subframe sends PUCCH, can obtain PUCCH when the #2 subframe of CC1 sends PUCCH launches power as history value.

When UE sends PUCCH in #7 subframe, can know that the time difference of CC1 is 4 subframes Length, the time difference of CC2 is the length of 3 subframes, and the time difference of CC3 is the length of 8 subframes, The time difference of CC2 is minimum, is the length of 3 subframes, and UE may determine that CC2 the last time sends PUCCH is the #4 subframe of CC2, then UE is when #7 subframe sends PUCCH, can obtain CC2 #4 subframe send PUCCH time PUCCH launch power as history value.

When UE sends PUCCH in #8 subframe, can know that the time difference of CC1 is 1 subframe Length, the time difference of CC2 is the length of 4 subframes, and the time difference of CC3 is the length of 9 subframes, The time difference of CC1 is minimum, is the length of 1 subframe, and UE may determine that CC1 the last time sends PUCCH is the #7 subframe of CC1, then UE is when #8 subframe sends PUCCH, can obtain CC1 #7 subframe send PUCCH time PUCCH launch power as history value.

For CC2:

When UE sends PUCCH in #4 subframe, it may be determined that corresponding on CC1, CC2 and CC3 Reference subframe be #4 subframe, then can calculate and send with the last with reference to subframe on each carrier wave Time difference between PUCCH:

CC1 the last time sends the #3 subframe that PUCCH is CC1, then the time difference of CC1 is 1 son The length of frame；

CC2 the last time sends the #4 subframe that PUCCH is CC2 previous frame, then the time difference of CC2 is The length of 10 subframes；

CC3 the last time sends the #9 subframe that PUCCH is CC3 previous frame, then the time difference of CC3 is The length of 5 subframes.

From the foregoing, it will be observed that the time difference of CC1 is minimum, being the length of 1 subframe, UE may determine that CC1 The last transmission PUCCH is the #3 subframe of CC1, then UE is when #4 subframe sends PUCCH, PUCCH when can obtain the #3 subframe transmission PUCCH of CC1 launches power as history value.

For CC3:

When UE sends PUCCH in #9 subframe, it may be determined that corresponding on CC1, CC2 and CC3 Reference subframe be #9 subframe, then can calculate and send with the last with reference to subframe on each carrier wave Time difference between PUCCH:

CC1 the last time sends the #8 subframe that PUCCH is CC1, then the time difference of CC1 is 1 son The length of frame；

CC2 the last time sends the #4 subframe that PUCCH is CC2, then the time difference of CC2 is 5 sons The length of frame；

CC3 the last time sends the #9 subframe that PUCCH is CC3 previous frame, then the time difference of CC3 is The length of 10 subframes.

From the foregoing, it will be observed that the time difference of CC1 is minimum, being the length of 1 subframe, UE may determine that CC1 The last transmission PUCCH is the #8 subframe of CC1, then UE is when #9 subframe sends PUCCH, PUCCH when can obtain the #8 subframe transmission PUCCH of CC1 launches power as history value.

It should be noted that in the content of foregoing description, UE can inquire on this carrier wave on each carrier wave The last sub-frame of uplink sending PUCCH, i.e. UE needs to distribute one for storing for each carrier wave The memory space of this information.

It is understood that in actual applications, UE can also only arrange a memory space, due to respectively Carrier wave is alignment in sequential, and when needing to send PUCCH, only having a carrier wave transmission should PUCCH, so UE can be according to sequential, for whole carrier waves, stores on whole carrier wave nearest one The sub-frame of uplink of secondary transmission PUCCH, detailed process can be:

UE distributes a memory space X, this X for recording the last up son sending PUCCH Frame.

After UE have sent PUCCH in the #2 subframe of CC1, X can be set to " CC1 by UE #2 subframe "；

After UE have sent PUCCH in the #3 subframe of CC1, X is updated to the " #3 of CC1 by UE Subframe "；

After UE have sent PUCCH in the #4 subframe of CC2, X is updated to the " #4 of CC2 by UE Subframe "；

By that analogy, when UE needs to send PUCCH in the #7 subframe of CC1, X can be read Content be " the #4 subframe of CC2 ", then UE can obtain CC2 #4 subframe send PUCCH time PUCCH launch power as history value.

In the present embodiment, in the memory space X of UE distribution, that record is the last transmission PUCCH Sub-frame of uplink, it is to be understood that in order to reduce the bit number shared by memory space X, should in reality In with, PUCCH when can also only store the last PUCCH of transmission in this memory space X launches Power, and do not store which subframe on specifically which carrier wave, the actual mode used is the most not It is construed as limiting.

Of the present invention subscriber equipment embodiment is described below, refers to Fig. 8, subscriber equipment of the present invention enforcement Example includes:

Order receives unit 801, and the transmitter power sent for receiving base station controls TPC command, should TPC command is for the power adjustment of one carrier wave of instruction；It can be one that this order receives unit 801 Port；

Power accumulation unit 802, for when this subscriber equipment is before the current sub-frame of uplink of this carrier wave When not sending Physical Uplink Control Channel PUCCH on one sub-frame of uplink, according to this UE at multiple carrier waves PUCCH during the middle the last PUCCH of transmission launches power and this power adjustment carries out TPC Accumulation, the PUCCH of this carrier wave after being updated launches power, and the plurality of carrier wave includes this Carrier wave.Power accumulation unit 802 can be a processor.

Being described in detail the subscriber equipment in the present embodiment below, refer to Fig. 9, user of the present invention sets Another embodiment standby includes:

Order receives unit 901, and the transmitter power sent for receiving base station controls TPC command, should TPC command is for the power adjustment of one carrier wave of instruction；

Power accumulation unit 902, for when this subscriber equipment is before the current sub-frame of uplink of this carrier wave When not sending Physical Uplink Control Channel PUCCH on one sub-frame of uplink, according to this UE at multiple carrier waves PUCCH during the middle the last PUCCH of transmission launches power and this power adjustment carries out TPC Accumulation, the PUCCH of this carrier wave after being updated launches power, and the plurality of carrier wave includes this Carrier wave.

It should be noted that it can be receiving port that the order in the present embodiment receives unit 901, power Cumulative unit 902 can be processor.

Subscriber equipment in the present embodiment can further include:

Signaling receives unit 903, for receiving the radio resource control RRC signaling that base station sends, this RRC Signaling comprises TPC group mark；

Collection query unit 904, for the power adjustment set corresponding according to the mark inquiry of this TPC group；

Numerical value query unit 905, is used for according to this TPC command in the power adjustment set inquired Obtain this power adjustment.

For ease of understanding, below with a concrete application scenarios in the present embodiment subscriber equipment between each unit Contact be described:

In the present embodiment, when base station determines to need to launch UE can be in UE when power is controlled Order receives unit 901 and sends TPC command, and this TPC command adjusts for the power of one carrier wave of instruction One power adjustment of the corresponding carrier wave of value, i.e. this TPC command.

In the present embodiment, multiple carrier waves can be distributed for UE in base station, and these carrier waves are referred to as configuring carrier set, Configuration carrier wave in this configuration carrier set is divided into carrier wave and deactivation carrier wave, and carrier set includes at least one Individual carrier wave.

UE can send and receive control information activating on carrier wave, and these activate carrier wave can be by uplink/downlink Scheduling is used for transmitting data, and the power accumulation unit 902 in UE can know current each carrier wave, this institute Have in carrier wave and comprise this carrier wave.

In the present embodiment, after power accumulation unit 902 determines carrier wave, this current time can be calculated And the last time difference sent between PUCCH on this carrier wave, concrete calculation can be:

Power accumulation unit 902 can be inquired about the most up with this according to current sub-frame of uplink on each carrier wave Subframe is in the reference subframe of same time slot, owing to each activation carrier wave is sequential alignment, so power tires out Product unit 902 can all inquire the reference subframe of correspondence on each activation carrier wave.

Power accumulation unit 902 determines with reference to after subframe, for each carrier wave, power accumulation unit 902 can back inquire about the last subframe sending PUCCH on this carrier wave from the beginning of with reference to subframe, Calculate this subframe again and with reference to the time difference between subframe.

After power accumulation unit 902 is calculated the time difference of each carrier wave, power accumulation unit 902 from The time difference of each carrier wave is chosen minima, and determines the carrier wave corresponding to this time difference.

Power accumulation unit 902 obtains the last transmission from the carrier wave that this time difference minima is corresponding PUCCH during PUCCH launches power, and launches power and TPC command correspondence according to PUCCH Power adjustment carry out TPC accumulation, PUCCH after being updated launches power.

In the present embodiment, power accumulation unit 902 launches power and TPC command pair according to PUCCH The power adjustment answered carries out the process of TPC accumulation and is retouched with step 206 in aforementioned embodiment illustrated in fig. 2 The content stated is similar to, and here is omitted.

It should be noted that the TPC command that order reception unit 901 receives is at least one bit, All presetting power adjustment set in UE and base station, UE can adjust from power according to this TPC command Value set determines the power adjustment of correspondence.

The PUCCH being referred on all carrier waves during the last PUCCH of transmission due to UE launches merit Rate, it is possible that certain error can be there is, in order to reduce this error, can be with front in the way of employing Stating the content described in embodiment illustrated in fig. 2 to be similar to, here is omitted.

It should be noted that if UE and base station increase the group number of power adjustment set, then signaling receives Unit 903 can receive the RRC signaling that base station sends, and comprises TPC group mark in this RRC signaling, Collection query unit 904 receives the merit of the TPC group mark inquiry correspondence that unit 903 gets according to signaling Rate adjusted value set, numerical value query unit 905 receives, according to order, the TPC command that unit 901 gets Power adjustment is inquired about in the power adjustment set that collection query unit 904 inquires.

In the present embodiment, when order reception unit 901 is after base station receives TPC command, if one The previous sub-frame of uplink of the current sub-frame of uplink of individual carrier wave does not sends PUCCH, then power accumulation unit 902 can obtain PUCCH transmitting power during the last time transmission PUCCH according to all carrier waves, and TPC accumulation is carried out, owing to power accumulation unit 902 can root according to this transmitting power and TPC command Obtain PUCCH according to all carrier waves and launch power, and will necessarily upper at certain carrier wave when sending A/N Row subframe sends PUCCH, so no matter UE needs the current sub-frame of uplink sending PUCCH at which Individual carrier wave, UE the most always can get PUCCH and launch the history value of power, therefore, it is possible in difference Power control is carried out under the state of carrier aggregation of proportioning.

Referring to Figure 10, another embodiment of subscriber equipment of the present invention includes:

Receiving unit 1001, the transmitter power sent for receiving base station controls TPC command, this TPC Order is for indicating the power adjustment of SCC；Receiving unit 1001 can be port；

Cumulative unit 1002, for sending Physical Uplink Control Channel according to the last on this SCC PUCCH during PUCCH launches power and this power adjustment carries out TPC accumulation, after being updated This SCC PUCCH launch power.Cumulative unit 1002 can be processor.

Below the subscriber equipment in the present embodiment is described in detail, refers to Figure 11, user of the present invention Another embodiment of equipment includes:

Receiving unit 1101, for receiving the TPC command that base station sends, this TPC command is used for indicating The power adjustment of SCC；

Cumulative unit 1102, for sending Physical Uplink Control Channel according to the last on this SCC PUCCH during PUCCH launches power and this power adjustment carries out TPC accumulation, after being updated This SCC PUCCH launch power.

It should be noted that the reception unit 1101 in the present embodiment can be receiving port, cumulative unit 1102 can be processor.

Subscriber equipment in the present embodiment can further include:

Control signaling and receive unit 1103, for receiving the RRC signaling that base station sends, this RRC signaling In comprise TPC group mark；

First query unit 1104, for according to controlling the TPC group that signaling reception unit 1103 gets The power adjustment set that mark inquiry is corresponding；

Second query unit 1105, for according to receiving the TPC command that gets of unit 1101 first The power adjustment set that query unit 1104 inquires is inquired about the power adjustment of correspondence.

It can also be a receiving port that control signaling in the present embodiment receives unit 1103.

Subscriber equipment in the present embodiment can further include:

First judging unit 1106, is used for judging that on this SCC, the last PUCCH that sends is with current Whether the time difference between row subframe is more than the first preset numerical value；

Reset cell 1107, for determining the last on this SCC sending out when this first judging unit 1106 When sending the time difference between PUCCH and current sub-frame of uplink to be more than the first preset numerical value, reset TPC Accumulation.

Subscriber equipment in the present embodiment can further include:

Second judging unit 1108, is used for judging that on this SCC, the last PUCCH that sends is with current Whether the time difference between row subframe is more than preset second value；

Rerun unit 1109, for determining this SCC on the last when this second judging unit 1108 When sending the time difference between PUCCH and current sub-frame of uplink to be more than preset second value, according to UE's Actual emission power, PUCCH open loop power, path loss, the compensating parameter of different PUCCH format, The compensating parameter of different ascending control information bit numbers recalculates PUCCH and launches power.

In the present embodiment, when base station determines to need to launch UE can be in UE when power is controlled Receiving unit 1101 and send TPC command, this TPC command is for indicating the power adjustment of SCC, i.e. One power adjustment of this TPC command correspondence SCC.

After receiving the TPC command that unit 1101 receives base station transmission, know that needs carry out launching power Adjust, and it is known that specifically the transmitting power of SCC is adjusted.

During base station scheduling PCC, the DCI carrying TPC does not comprise carrier wave instruction CIF (Carrier Index Field), during scheduling SCC, the DCI carrying TPC comprises CIF, is used for indicating concrete which CC of scheduling, Field in the middle of DCI includes that TPC etc. also uses to this CC, so UE can be true according to this parameter Surely it is that the transmitting power to which carrier wave is adjusted.

Cumulative unit 1102 in UE from the beginning of current sub-frame of uplink, back can be looked in this SCC Ask the last time PUCCH when sending PUCCH and launch power, if inquiring in certain of this SCC In subframe, PUCCH launches power, then can calculate the time difference between this subframe and current sub-frame of uplink, And judged that whether this time difference is more than the first numerical value by the first judging unit 1106.

This first numerical value can be a default value, for example, length of 20 subframes, it is possible to understand that It is, if cumulative unit 1102 back inquires about 20 subframes does not inquires the last transmission PUCCH yet Subframe, then cumulative unit 1102 can also continue inquiry.

In the present embodiment, the second judging unit 1108 may determine that whether time difference is more than second value, the Two numerical value are more than the first numerical value, and this second value can be a default value, for example, 50 subframes Length.

If the second judging unit 1108 determines the last subframe sending PUCCH and current sub-frame of uplink Between time difference more than second value, or the time span that UE back inquires about has exceeded the second number Value, then explanation UE is not transmitted across PUCCH, even if inquiring further back on this SCC for a long time The PUCCH sending PUCCH launches power, does not the most possess reference significance, so unit 1109 of reruning Can be according to the actual emission power of UE, PUCCH open loop power, path loss, different PUCCH The compensating parameter of form, the compensating parameter of different ascending control information bit number recalculate PUCCH and launch Power, the concrete process calculated described in process and aforementioned embodiment illustrated in fig. 4 is similar, the most superfluous State.

If the first judging unit 1106 determines the last subframe sending PUCCH and current sub-frame of uplink Between time difference less than or equal to second value, but more than the first numerical value, then explanation UE is at this SCC On be not the most transmitted across PUCCH, this last time send PUCCH time PUCCH launch merit Rate possesses reference significance to a certain extent, then reset cell 1107 can reset TPC accumulation, and according to TPC accumulation after replacement calculates the PUCCH after updating and launches power.

Process described in concrete reset process and aforementioned embodiment illustrated in fig. 4 is similar, and here is omitted.

In the present embodiment, if the first judging unit 1106 determine the last subframe sending PUCCH with Time difference between current sub-frame of uplink is less than the first numerical value, then explanation UE the most just sends out on this SCC Pass through PUCCH, then PUCCH transmitting power during the last transmission PUCCH has stronger Reference significance.

Cumulative unit 1102 then can launch power and power corresponding to TPC command according to this PUCCH Adjusted value carries out TPC accumulation, and the PUCCH after being updated launches power.

It should be noted that the TPC command that reception unit 1101 receives is at least one bit, UE With base station is all preset power adjustment set, UE can be according to this TPC command from power adjustment Set determines the power adjustment of correspondence.

The PUCCH being referred on this carrier wave during the last PUCCH of transmission due to UE launches power, It is possible that certain error can be there is, in order to reduce this error, can by employing in the way of with earlier figures 4 Content described in illustrated embodiment is similar to, and here is omitted.

If it should be noted that UE and base station increase the group number of power adjustment set, then controlling signaling Receive unit 1103 and can receive the RRC signaling that base station sends, this RRC signaling comprises TPC group mark Knowing, the TPC group mark that the first query unit 1104 gets according to control signaling reception unit 1103 is looked into Asking corresponding power adjustment set, the second query unit 1105 is according to receiving what unit 1101 got TPC command is inquired about the power of correspondence in the power adjustment set that the first query unit 1104 inquires and is adjusted Whole value.

In the present embodiment, when reception unit 1101 is after base station receives TPC command, cumulative unit 1102 can obtain PUCCH transmitting power during the last transmission PUCCH on this SCC, accumulation Unit 1102 carries out TPC accumulation according to this transmitting power and TPC command, even if UE is on current Do not send PUCCH, UE on the previous sub-frame of uplink of row subframe and the most always can get PUCCH Launch the history value of power, it is possible to carry out power control under the state of carrier aggregation of different ratio.

Below base station embodiment of the present invention is described, refers to Figure 12, the enforcement of one, base station of the present invention Example includes:

Determine unit 1201, previous up for when the base station current sub-frame of uplink on a carrier wave When not receiving the PUCCH that UE sends in subframe, then according to this UE the last time in multiple carrier waves PUCCH when sending PUCCH launches power and determines the power adjustment of this carrier wave, the plurality of load Ripple includes this carrier wave；Determine that unit 1201 can be processor；

Signal generating unit 1202, for generating the transmitter power control of the power adjustment carrying this carrier wave TPC command processed；

Transmitting element 1203, for being sent to this UE by this TPC command, to notify this to UE The power adjustment of carrier wave.Transmitting element 1203 can be port.

In the present embodiment, if on the previous sub-frame of uplink of the current sub-frame of uplink that base station is on a carrier wave Do not receive the PUCCH that UE sends, it is determined that unit 1201 can be according to this UE in multiple carrier waves PUCCH during the last PUCCH of transmission launches power and determines the power adjustment of a carrier wave.

When base station determines to need to be controlled the transmitting power of UE, signal generating unit 1202 can generate TPC command, carries the power adjustment of this carrier wave in this TPC command.

After signal generating unit 1202 generates TPC command, this TPC command can be sent out by transmitting element 1203 Give UE so that UE carries out corresponding power control.

It should be noted that for the amplitude increasing power adjustment, base station can operate with other, tool Gymnastics is made similar with the description of step 503 in aforementioned embodiment illustrated in fig. 5, and here is omitted.

In the present embodiment, if on the previous sub-frame of uplink of the current sub-frame of uplink that base station is on a carrier wave Do not receive the PUCCH that UE sends, it is determined that unit 1201 can be according to this UE in multiple carrier waves PUCCH during the last PUCCH of transmission launches power and determines the power adjustment of a carrier wave, and This power adjustment is sent to UE by TPC command so that UE can carry out power control；

Referring to Figure 13, one, base station of the present invention embodiment includes:

Power determining unit 1301, for controlling according to UE the last physical uplink that sends on SCC PUCCH during channel PUCCH launches power and determines the power adjustment of this SCC；Power determines list Unit 1301 can be processor；

Order signal generating unit 1302, for generating the transmitter power control of the power adjustment carrying this SCC TPC command processed；

Command sending unit 1303, for being sent to this UE by this TPC command, to be somebody's turn to do to UE notice The power adjustment of SCC.Command sending unit 1303 can be port.

In the present embodiment, when base station determines from SCC, UE is the last on this SCC to be sent After PUCCH during PUCCH launches power, power determining unit 1301 can be according to this PUCCH Launch power and determine the power adjustment of this SCC.

When base station determines to need to be controlled the transmitting power of UE, order signal generating unit 1302 is permissible Generate TPC command, this TPC command carries the power adjustment of this SCC.

After order signal generating unit 1302 generates TPC command, command sending unit 1303 can be by this TPC Order is sent to UE so that UE carries out corresponding power control.

It should be noted that for the amplitude increasing power adjustment, other operation can also be done in base station, The content that concrete operations describe with step 603 in aforementioned embodiment illustrated in fig. 6 is similar, and here is omitted.

In the present embodiment, power determining unit 1301 can send according to UE is the last on SCC PUCCH during PUCCH launches power and determines the power adjustment of SCC, and this power adjustment is led to Cross TPC command and be sent to UE so that UE can carry out power control；

One of ordinary skill in the art will appreciate that all or part of step realizing in above-described embodiment method The program that can be by completes to instruct relevant hardware, and this program can be stored in a kind of computer-readable In storage medium, storage medium mentioned above can be read only memory, disk or CD etc..

Above a kind of Poewr control method provided by the present invention, subscriber equipment and base station are carried out in detail Thin introduction, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, concrete real Executing and all will change in mode and range of application, therefore, this specification content should not be construed as this The restriction of invention.

Claims

1. a Poewr control method, it is characterised in that including:

If UE does not sends physics on the previous sub-frame of uplink of the current sub-frame of uplink of one carrier wave Ascending control channel PUCCH, then UE sends PUCCH according to this UE is the last in multiple carrier waves Time PUCCH launch power and described power adjustment and carry out TPC accumulation, the institute after being updated The PUCCH stating a carrier wave launches power, and the plurality of carrier wave includes one carrier wave；

Wherein, UE determines that the mode of power adjustment corresponding to TCP order is:

UE receives the radio resource control RRC signaling that base station sends, and comprises TPC in described RRC signaling Group mark；

UE identifies from the many groups power adjustment increased after power adjustment amplitude according to described TPC group Set is inquired about the power adjustment set of correspondence；

UE obtains described power in the power adjustment set inquired according to described TPC command and adjusts Value.

Method the most according to claim 1, it is characterised in that described method also includes:

For each carrier wave, UE calculates the last on current time and this carrier wave transmission between PUCCH Time difference；

UE inquires about the carrier wave that described time difference is minimum；

PUCCH when UE obtains the last PUCCH of transmission on the carrier wave inquired launches power.

Method the most according to claim 1, it is characterised in that described power adjustment collection is combined into silent The power adjustment set recognized, or the power adjustment set for extension.

4. a Poewr control method, it is characterised in that including:

Described TPC command is sent to described UE by base station, with the power to UE notice one carrier wave Adjusted value；

Wherein, base station determines that TPC group identifies, and described TPC group mark is for indicated horsepower adjusted value set；

Base station sends the radio resource control RRC signaling comprising TPC group mark to UE so that described UE identifies from the many groups power adjustment set increased after power adjustment amplitude according to described TPC group The power adjustment set that middle inquiry is corresponding, and according to TPC command in the power adjustment set inquired Middle acquisition power adjustment, to carry out power control.

5. a Poewr control method, it is characterised in that including:

UE according on described SCC the last send Physical Uplink Control Channel PUCCH time PUCCH launches power and described power adjustment carries out TPC accumulation, the described SCC after being updated PUCCH launch power；

6. a Poewr control method, it is characterised in that including:

Described TPC command is sent to described UE by base station, to notify that to UE the power of described SCC is adjusted Whole value；

7. a subscriber equipment, it is characterised in that including:

Power accumulation unit, for when described subscriber equipment is at the current sub-frame of uplink of one carrier wave When not sending Physical Uplink Control Channel PUCCH on previous sub-frame of uplink, according to this UE in multiple loads In ripple, PUCCH during the last PUCCH of transmission launches power and described power adjustment is carried out TPC accumulates, and the PUCCH of the one carrier wave after being updated launches power, the plurality of carrier wave Including one carrier wave；

Wherein, described subscriber equipment also includes:

Signaling receives unit, for receiving the radio resource control RRC signaling that base station sends, described RRC Signaling comprises TPC group mark；

Collection query unit, for identifying after increasing power adjustment amplitude according to described TPC group The power adjustment set of many groups is inquired about the power adjustment set of correspondence；

Numerical value query unit, for obtaining in the power adjustment set inquired according to described TPC command Obtain described power adjustment.

8. a subscriber equipment, it is characterised in that including:

Cumulative unit, for sending Physical Uplink Control Channel PUCCH according to the last on described SCC Time PUCCH launch power and described power adjustment and carry out TPC accumulation, the institute after being updated The PUCCH stating SCC launches power；

9. a base station, it is characterised in that including:

Transmitting element, for being sent to described UE by described TPC command, to notify one to UE The power adjustment of carrier wave；

10. a base station, it is characterised in that including:

Command sending unit, for being sent to described UE by described TPC command, with described to UE notice The power adjustment of SCC；