CN102300305B - Method and device for controlling uplink power - Google Patents

Abstract

The invention discloses a method for controlling uplink power, which is used for controlling the sum of the transmitting power of all uplink channels in a sub-frame not to surpass the maximum transmitting power allowed by UE (User Equipment). The method comprises the following steps: the UE determines the transmitting power of an uplink channel on each carrier; specific to each frequency band, the UE judges whether the sum of the transmitting power of each uplink channel on carriers in the same frequency band surpasses the maximum transmitting power of the frequency band; if so, the UE keeps the computed transmitting power value of the uplink channel on each carrier invariant; and otherwise, the UE lowers the transmitting power of the uplink channels on the carriers in the frequency band based on the maximum transmitting power, so that the sum of the transmitting power of the uplink channels on the carriers in the frequency band does not surpass the maximum transmitting power of the frequency band after operation, and the sum of the transmitting power of uplink channels of all frequency bands does not surpass the maximum transmitting power allowed by the UE. The invention further discloses a device for implementing the method.

Description

A kind of method of uplink power control and device

Technical field

The present invention relates to the communications field, particularly relate to method and the device of uplink power control.

Background technology

LTE-A (Long Term Evolution-Advanced, the Long Term Evolution of upgrading) system has introduced CA (Carrier Aggregation, carrier aggregation) technology, as shown in Figure 1, this technology is to distribute to some spectrum aggregatings of existing systems, gathers into big bandwidth and uses, and the up-downgoing carrier wave can asymmetricly dispose in the system at this moment, be that the user may take N 〉=1 carrier wave and carries out downlink transfer, M 〉=1 carrier wave carries out uplink.

Carrier aggregation technology can be worked terminal simultaneously on a plurality of residential quarters (cell), for FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) cell of system comprises a DL CC (Downlink Component Carrier, downlink member carrier) and a UL CC (Uplink Component Carrier, uplink member carrier), namely become a cell for carrier wave of TDD (Time Division Duplex, time division duplex) system.Each member carrier can be continuous in the system of carrier aggregation, also can be discontinuous, the bandwidth between each member carrier can be identical or different, in order to keep and LTE (Long Term Evolution, Long Term Evolution) system compatible, the maximum bandwidth limit of each member carrier are 20MHz.Stipulated among the LTE Rel-10 (version 10) that maximum can support 5 DL CC polymerization, up direction is only supported continuous carrier aggregation.In addition, LTE-A also classifies to the cell of carrier aggregation, is divided into: Pcell (Primary Cell, main plot) and Scell (Secondary Cell, auxilliary residential quarter).Have only a cell to be defined as Pcell among the cell of UE (subscriber equipment) polymerization, by base station selected and by RRC (Radio Resource Control, Radio Resource control) signaling disposes to terminal, the Pcell of different terminals can be different, be used for realizing some specific functions and transmission, as transmit PUCCH (Physical uplink control channel, Physical Uplink Control Channel), reference carrier (pathloss reference) as the path loss measurement, send PRACH (Physical Random Access Channel, Physical Random Access Channel), transmission SPS (Semi-Persistent Scheduling, semi-continuous scheduling) business etc.Other cell except Pcell of UE polymerization is called Scell.

Uplink power control among the LTE-ARel-10 is carried out based on each member carrier, and the physical channel for different is defined as follows:

PUCCH (Physical Uplink Control Channel) transmitting power: the employed transmitting power P of UE emission PUCCH channel in sub-frame of uplink i _PUCCHCalculated by following formula:

$P_{\mathrm{PUCCH}}\left(i\right)=\min \left\{\begin{array}{c}{P}_{\mathrm{CMAX},c}\left(i\right),\\ P_{0\_\mathrm{PUCCH}}+{\mathrm{PL}}_c+h(n_{\mathrm{CQI}},n_{\mathrm{HARQ}},n_{\mathrm{SR}})+{\mathrm{\Δ}}_{F\_\mathrm{PUCCH}}\left(F\right)+{\mathrm{\Δ}}_{\mathrm{TxD}}\left(F^{\′}\right)+g\left(i\right)\end{array}\right\}---\left[\mathrm{dBm}\right]$

Wherein: P _{CMAX, c}(i) be that the residential quarter maximum transmission power among the subframe i of residential quarter c is given in configuration.The parameter Δ _{F_PUCCH}(F) by the high level configuration, corresponding to the power offset of different PUCCH format (form) with respect to PUCCH format 1a, wherein PUCCH format comprises many kinds of forms of PUCCH format1/1a/1b/2/2a/2b/3.Δ _TxD(F ') expression is transmitted PUCCH if UE is configured on 2 antenna ports, then Δ with respect to the transmission diversity power offset of single port transmitted power _TxD(F ') is configured different PUCCH format by high-level signaling, value set for 0 ,-2}dB; Otherwise, Δ _TxD(F ')=0.H (n _CQI, n _HARQ, n _SR) be the power offset relevant with the bit number of PUCCH carrying, wherein n _CQICorresponding to the CQI bit number of carrying, n _HARQACK/NACK bit number corresponding to carrying.P _OPUCCHBe the transmitting power desired value, by the exclusive part P in residential quarter _{O_NOMINAL_PUCCH}With the exclusive part P of UE _{O_UE_PUCCH}Two parts addition constitutes.G (i) is the power control command word cumulant, δ wherein _PUCCHBe at the exclusive correction value of the UE of PUCCH, also claim TPC (Transmit Power Control, power control) order, be contained in DCI (the Downlink Control Information of corresponding main plot, Downlink Control Information) PDCCH of form 1A/1B/1D/1/2A/2/2B/2C (Physical Downlink control channel, Physical Downlink Control Channel) in, or be contained among the PDCCH of DCI form 3/3A and the PUCCH power correction value combined coding exclusive with other UE, this moment PDCCH CRC (Cyclic Redundancy Check, cyclic redundancy check (CRC)) by TPC-PUCCH-RNTI (TPC-PUCCH-Radio Network Temporary Identifier, PUCCH power control Radio Network Temporary Identifier) scrambling.

PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) transmitting power:

If there is not the PUCCH transmission in UE in subframe i, then UE Serving cell c in subframe i transmits the transmitting power P of PUSCH _{PUSCH, c}(i) calculate according to following formula:

$P_{\mathrm{PUSCH},c}\left(i\right)=\min \left\{\begin{array}{c}{P}_{\mathrm{CMAX},c}\left(i\right),\\ 10{\log }_{10}\left(M_{\mathrm{PUSCH},c}\left(i\right)\right)+P_{O\_\mathrm{PUSCH},c}\left(j\right)+{\mathrm{\α}}_c\left(j\right)\·{\mathrm{PL}}_c+{\mathrm{\Δ}}_{\mathrm{TF},c}\left(i\right)+f_c\left(i\right)\end{array}\right\}---\left[\mathrm{dBm}\right]$

If there is the PUCCH transmission in UE in subframe i, then UE Serving cell c in subframe i transmits the transmitting power P of PUSCH _{PUSCH, c}(i) calculate according to following formula:

$P_{\mathrm{PUSCH},c}\left(i\right)=\min \left\{\begin{array}{c}10{\log }_{10}({\hat{P}}_{\mathrm{CMAX},c}\left(i\right)-{\hat{P}}_{\mathrm{PUCCH}}\left(i\right)),\\ 10{\log }_{10}\left(M_{\mathrm{PUSCH},c}\left(i\right)\right)+P_{O\_\mathrm{PUSCH},c}\left(j\right)+{\mathrm{\α}}_c\left(j\right)\·{\mathrm{PL}}_c+{\mathrm{\Δ}}_{\mathrm{TF},c}\left(i\right)+f_c\left(i\right)\end{array}\right\}---\left[\mathrm{dBm}\right]$

Wherein: P _{CMAX, c}(i) be that UE maximum on the Serving cell c in subframe i allows transmitting power, by the high level configuration,

Be P _{CMAX, c}(i) linear thresholding. Be above-mentioned PUCCH transmitting power P _PUCCH(i) linear thresholding.M _{PUSCH, c}(i) be the resource size of the PUSCH on the c of the residential quarter of the subframe i that comes into force, represent with Resource Block (RB) number.P _{O_PUSCH, c}(j) be PUSCH power initial value on the c of residential quarter, by residential quarter exclusive normalization part P _{O_NOMINAL_PUSCH, c}(j) and the exclusive part P of UE _{O_UE_PUSCH, c}(j) sum is formed.α _c(j) be the path loss compensating factor of Serving cell c, be the exclusive parameter in residential quarter, indicated by 3bit (bit) by high-level signaling; When j=0 or 1, α _c∈ { 0,0.4,0.5,0.6,0.7,0.8,0.9,1}; When j=2, α _c(j)=1. (namely to being used for the PUSCH transmission of random accessing message 3, use system-wide all the time and decrease compensation).PL is the downlink path loss that UE measures, the descending residential quarter that (path loss is with reference to the connection indication) comes the uplink cells at definite employing and this PUSCH place to have the linking relationship of system configuration according to higher level parameters pathlossReferenceLinking (is SIB (SIB, System Information Block, system information block) 2linkage Cell) or Pcell measure.K _S=1.25 o'clock,

Represent the power offset that different MCS (Modulation and Coding Scheme, modulation coding mode) mode is corresponding different; K _S=0 o'clock, Δ T _{F, c}(i)=0, expression is closed with MCS and is carried out the function that power is adjusted, wherein, and K _SBe the exclusive parameter of UE, by the high-level signaling indication, be used for control Δ T _{F, c}(i) value.The bit number of every Resource Unit correspondence among BPRE (Bit Per Resource Element) the expression PUSCH,

(code rate of the ascending control information that expression is carried among the PUSCH with respect to the side-play amount between the code rate of the upstream data on the PUSCH, pre-configured by high-level signaling).F (i) has accumulation mode and current absolute value mode dual mode for PUSCH power control adjustment amount, if high-rise configuration UE has been opened the accumulated value mode power adjustment of residential quarter c or the TPC order δ of residential quarter c _{PUSCH, c}Be included among the PDCCH with DCI form 0, wherein CRC carries out scrambler, then f with TC-RNTI (Temporary Cell-Radio Network Temporary Identifier, interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI) _c(i)=f _c(i-1)+δ _{PUSCH, c}(i-K _PUSCH); If the accumulated value mode power adjustment that the high-level signaling configuration UE is not opened residential quarter c, then f _c(i)=δ _{PUSCH, c}(i-K _PUSCH), δ _{PUSCH, c}Be at the exclusive correction value of the UE of PUSCH, be also referred to as the TPC order, be contained among the PDCCH of DCI form 0/4, or be contained among the PDCCH of DCI form 3/3A and with other TPC order combined codings, the CRC check bit of PDCCH is by TPC-PUSCH-RNTI (TPC-PUSCH-Radio Network Temporary Identifier, PUSCH power control Radio Network Temporary Identifier) scrambling at this moment.

SRS (souding reference signal surveys and uses reference signal) transmitting power:

UE sends the needed transmitting power P of uplink detection reference symbol SRS at residential quarter c in subframe i _SRSDefined by following formula:

P _SRS，c(i)＝min{P _CMAX，c(i)，P _{SRS_OFFSET，c}(m)+10log ₁₀(M _SRS，c)+P _{O_PUSCHc}(j)+α _c(j)·PL _c+f _c(i)}[dBm]

Wherein, P _{SRS_OFFSET, c}(m) be the power offset of the following SRS of the last different transmission mode (different antennae port) of residential quarter c with respect to PUSCH, the corresponding cycle SRS of m=0, m=1 corresponding aperiodic of SRS.M _{SRS, c}Be the SRS transmission bandwidth on the c of residential quarter among the subframe i, represent with RB (Resource Block, Resource Block) number.All the other parameters are with the power contorl parameters of the transmission of the PUSCH on this residential quarter.

PRACH (Physical Random Access Channel) channel transmitting power:

The PRACH channel only sends at Pcel1, and transmitting power is calculated by following formula:

PPRACH＝min{P _CMAX，c(i)，PREAMBLE_RECEIVED_TARGET_POWER+PL _c}_[dBm]

Wherein, P _{CMAX, c}(i) be the maximum permission transmitting power of UE among the c of residential quarter.PL _cDownlink path loss in this residential quarter that measures for UE.PREAMBLE_RECEIVED_TARGET_POWER is calculated by MAC (Medium Access Control, the medium access control) layer of UE, and is notified to UE, is the PRACH target power.

In addition, if UE has surpassed the maximum transmission power that UE allows in total transmitting power of current subframe i, then carrying out power when reducing, UE should preferentially guarantee the through-put power of PUCCH, and equal proportion reduces PUSCH transmitting power on each residential quarter c to satisfy the UE maximum transmission power:

$\underset{c}{\mathrm{\Σ}}w\left(i\right)\·{\hat{P}}_{\mathrm{PUSCH},c}\left(i\right)\≤({\hat{P}}_{\mathrm{CMAX}}\left(i\right)-{\hat{P}}_{\mathrm{PUCCH}}\left(i\right))$

Wherein

Be P _PUCCH(i) linear thresholding,

Be P _{PUSCH, c}(i) linear thresholding,

The maximum transmission power P that allows for the UE of configuration _CMAXLinear thresholding, w (i) is that the PUSCH power on each residential quarter c reduces the factor, 0≤w (i)≤1.If do not have the PUCCH transmission among the current subframe i, then ${\hat{P}}_{\mathrm{PUCCH}}\left(i\right)=0.$

If UE is in current subframe i, at residential quarter c ' existence carrying UCI (Uplink Control Information, ascending control information) PUSCH transmission, and there is the PUSCH transmission of not carrying UCI at other Serving cells, and UE has surpassed the maximum transmission power that UE allows in total transmitting power of current subframe i, then when carrying out the power reduction, the through-put power that UE should preferentially guarantee to carry the PUSCH of UCI does not reduce, and UE needs transmitting power that equal proportion reduces among the current subframe i each PUSCH that does not carry UCI with full UE maximum transmission power:

$\underset{c\≠c^{\′}}{\mathrm{\Σ}}w\left(i\right)g{\hat{P}}_{\mathrm{PUSCH},C}\left(i\right)\≤({\hat{P}}_{\mathrm{CMAX}}\left(i\right)-{\hat{P}}_{\mathrm{PUSCH},C^{\′}}\left(i\right))$

Wherein, Be the linear thresholding of transmitting power of the PUSCH of carrying UCI, w (i) reduces the factor, 0≤w (i)≤1 for each PUSCH power that does not carry on the Serving cell c of UCI.When all PUSCH power that do not carry UCI all were reduced to 0, total transmitting power of UE still surpassed the maximum transmitting power that allows, and then further the PUSCH of carrying UCI was reduced power.

If UE is in current subframe i, the PUSCH transmission that has the PUSCH transmission of PUCCH, carrying UCI simultaneously and do not carry UCI, and total transmitting power of UE has surpassed maximum permission transmitting power, then UE should preferentially guarantee the through-put power of PUCCH, secondly guarantee the through-put power of the PUSCH of carrying UCI, and equal proportion reduces PUSCH transmitting power on each residential quarter c to satisfy the UE maximum transmission power:

SRS for transmitting simultaneously on a plurality of residential quarters in same subframe, if total transmitting power of UE has surpassed maximum permission transmitting power, then carry out equal proportion power to the SRS on each residential quarter and reduce to satisfy the UE maximum transmission power:

$\underset{c}{\mathrm{\Σ}}w\left(i\right)\·{\hat{P}}_{\mathrm{SRS},c}\left(i\right)\≤{\hat{P}}_{\mathrm{CMAX}}\left(i\right)$

Wherein Be P _{SRS, c}(i) linear thresholding, w (i) is that the SRS power on each residential quarter c reduces the factor, 0≤w (i)≤1.

In LTE-ARel-11, support a plurality of member carriers of the terminal polymerization of LTE-A CA technology may belong to different frequency bands, and the frequency band spacing of ownership also may be bigger, so be in different frequency bands and be referred to as carrier aggregation under the different frequency bands, i.e. inter-band CA.As shown in Figure 2, the terminal polymerization three residential quarter: Cell1, Cell2 and Cell3, wherein Cell1 and Cell2 are in frequency band Band1, and Cell3 is in Band2.Be in the residential quarter of different band (frequency band), its transmission characteristic differs greatly, therefore if terminal can a plurality of Band of polymerization, and different B and can support that different TDD UL/DL are configured to avoid facing frequently disturb, and so in general terminal can be used different transceivers at different B and.How different frequency bands is carried out uplink power control and still do not have effective scheme at present.

Summary of the invention

The embodiment of the invention provides a kind of method and device of uplink power control, and the transmitting power sum that is used for all up channels of a subframe of control is no more than the maximum transmission power that UE allows.

A kind of method of uplink power control may further comprise the steps:

User equipment (UE) is determined the transmitting power of the up channel on each carrier wave based on the maximum transmission power of each carrier wave and the power contorl parameters of this carrier wave correspondence;

At each frequency band, described UE judges whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band;

If do not surpass, described UE remains unchanged the transmission power level of the up channel that calculates on each carrier wave;

If surpass, described UE carries out the power reduction based on the maximum transmission power of frequency band to the uplink channel transmission power on the carrier wave in this frequency band, satisfying the maximum transmission power that transmitting power sum that power reduces the up channel on the carrier wave that is in after the operation in the identical frequency band is no more than described frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows.

A kind of method of transmission of configuration information may further comprise the steps:

Network side sends to UE by high-level signaling or PDCCH signaling with the maximum transmission power of each frequency band.

A kind of subscriber equipment comprises:

The power determination module is used for determining the transmitting power of the up channel on each carrier wave based on the maximum transmission power of each carrier wave and the power contorl parameters of this carrier wave correspondence;

Control module, be used at each frequency band, judge whether the transmitting power sum of each up channel on the carrier wave be in the identical frequency band surpasses the maximum transmission power of this frequency band, if do not surpass, the transmission power level of the up channel that calculates on each carrier wave is remained unchanged; If surpass, maximum transmission power based on frequency band carries out the power reduction to the uplink channel transmission power on the carrier wave in this frequency band, satisfying the maximum transmission power that transmitting power sum that power reduces the up channel on the carrier wave that is in after the operation in the identical frequency band is no more than described frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows.

A kind of network equipment comprises:

Control module is for the maximum transmission power of determining each frequency band;

Interface module is used for by high-level signaling or PDCCH signaling the maximum transmission power of each frequency band being sent to UE.

Disposed the maximum transmission power that each band (frequency band) allows for UE in advance in the embodiment of the invention, UE judges whether that according to the maximum transmission power of frequency band needs adjust the transmitting power of each up channel on the carrier wave in the identical frequency band, if desired, then operate accordingly, satisfying the maximum transmission power that transmitting power sum that power reduces the up channel on the carrier wave that is in after the operation in the identical frequency band is no more than described frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows.Realized the power control at frequency band.Wherein, the maximum transmission power of each frequency band that disposes among the UE is disposed to UE by base station high-level signaling (as RRC (Radio Resource control) signaling or MAC (medium access control) signaling) or PDCCH signaling; Perhaps by making an appointment between UE and the base station, for example the maximum transmission power of predetermined each frequency band is divided the maximum transmission power that UE allows equally, does not then need extra signaling.

Description of drawings

Fig. 1 is the schematic diagram of carrier aggregation in the prior art;

Fig. 2 is the schematic diagram of carrier aggregation under the different frequency bands in the prior art;

Fig. 3 is the main method flow chart of uplink power control in the embodiment of the invention;

The method flow diagram of uplink power control when Fig. 4 is the maximum transmission power associated configuration of embodiment of the invention midband;

Fig. 5 is first of carrier aggregation kind of schematic diagram under the different frequency bands in the embodiment of the invention;

Fig. 6 is second of carrier aggregation kind of schematic diagram under the different frequency bands in the embodiment of the invention;

Fig. 7 is the third schematic diagram of carrier aggregation under the different frequency bands in the embodiment of the invention;

The method flow diagram of uplink power control first embodiment when Fig. 8 is the maximum transmission power separate configurations of embodiment of the invention midband;

The method flow diagram of uplink power control second embodiment when Fig. 9 is the maximum transmission power separate configurations of embodiment of the invention midband;

Figure 10 is the method flow diagram of transmission of configuration information in the embodiment of the invention;

Figure 11 is the structure chart of UE in the embodiment of the invention;

Figure 12 is the structure chart of network equipment in the embodiment of the invention.

Embodiment

Disposed the maximum transmission power that each band (frequency band) allows for UE in advance in the embodiment of the invention, UE judges whether that according to the maximum transmission power of frequency band needs adjust the transmitting power of each up channel on the carrier wave in the identical frequency band, if desired, then operate accordingly, satisfying the maximum transmission power that transmitting power sum that power reduces the up channel on the carrier wave that is in after the operation in the identical frequency band is no more than described frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows.Realized the power control at frequency band.Wherein, the maximum transmission power of each frequency band that disposes among the UE is disposed to UE by base station high-level signaling (as RRC (Radio Resource control) signaling or MAC (medium access control) signaling) or PDCCH signaling; Perhaps by making an appointment between UE and the base station, for example the maximum transmission power of predetermined each frequency band is divided the maximum transmission power that UE allows equally, does not then need extra signaling.

In the present embodiment between the different frequency band frequency discontinuous, being the cline frequency resource that UE distributes is a frequency band.

Referring to Fig. 3, the main method flow process of uplink power control is as follows in the present embodiment:

Step 301:UE determines the transmitting power of the up channel on each carrier wave based on the maximum transmission power of each carrier wave and the power contorl parameters of this carrier wave correspondence.

Step 302: at each frequency band, described UE judges whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band.

Step 303: if do not surpass, described UE remains unchanged the transmission power level of the up channel that calculates on each carrier wave.

Step 304: if surpass, described UE carries out the power reduction based on the maximum transmission power of frequency band to the uplink channel transmission power on the carrier wave in this frequency band, satisfying the maximum transmission power that transmitting power sum that power reduces the up channel on the carrier wave that is in after the operation in the identical frequency band is no more than described frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows.

Preferable, UE preferentially reduces the transmitting power of the minimum up channel of priority on the carrier wave in this band based on the maximum transmission power of frequency band, and UE reduces transmitting power to a plurality of up channels that have equal priority on the carrier wave in the same band according to same ratio.The priority of each up channel is priority＞the do not carry priority of the PUSCH of UCI of PUSCH of priority＞carrying UCI of priority＞PRACH of PUCCH on the carrier wave in the present embodiment in the identical frequency band, perhaps, the priority of the PUSCH of the priority of priority＞PUCCH of PRACH＞carrying UCI＞the do not carry priority of the PUSCH of UCI.

The maximum transmission power of each frequency band can be separate configurations in the present embodiment, does not have association each other.Whether the maximum transmission power sum that this situation UE also needs to judge all frequency bands surpasses the maximum transmission power that UE allows.Perhaps, when the maximum transmission power of configuration frequency band, the maximum transmission power sum of each frequency band is configured to be no more than the maximum transmission power that UE allows, and then this situation does not need UE to judge whether the maximum transmission power sum of all frequency bands surpasses the maximum transmission power that UE allows.As seen, UE can not judge at the maximum transmission power of UE permission.When UE judges at the maximum transmission power of UE permission, the maximum transmission power that allows at UE judges that still elder generation is judged at the maximum transmission power of frequency band earlier, slightly different on specific implementation, describe in detail below by several exemplary embodiments.

Referring to Fig. 4, the method flow of uplink power control is as follows during the maximum transmission power associated configuration of present embodiment midband:

Step 400:UE obtains the maximum transmission power of each frequency band by high-level signaling or PDCCH signaling, and wherein the maximum transmission power sum of each frequency band is no more than the maximum transmission power that UE allows.

If UE and network side agreement obtain the maximum transmission power of each frequency band, for example arrange the maximum transmission power of each frequency band and divide the maximum transmission power that UE allows equally, then do not need signaling, also just do not need execution in step 400, the maximum transmission power that the UE acquisition allows self and the quantity of frequency band get final product.

Step 401:UE determines the transmitting power of the up channel on each carrier wave based on the maximum transmission power of each carrier wave and the power contorl parameters of this carrier wave correspondence.

Step 402: at each frequency band, described UE judges whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band.

Step 403: if do not surpass, described UE remains unchanged the transmission power level of the up channel that calculates on each carrier wave.

Step 404: if surpass, described UE carries out the power reduction based on the maximum transmission power of frequency band to the uplink channel transmission power on the carrier wave in this frequency band.

Preferable, UE preferentially reduces the transmitting power of the minimum up channel of priority on the carrier wave in this frequency band (band) based on the maximum transmission power of frequency band, and UE reduces transmitting power to a plurality of up channels that have equal priority on the carrier wave in the same band according to same ratio.The priority of each up channel is priority＞the do not carry priority of the PUSCH of UCI of PUSCH of priority＞carrying UCI of priority＞PRACH of PUCCH on the carrier wave in the present embodiment in the identical frequency band, perhaps, the priority of the PUSCH of the priority of priority＞PUCCH of PRACH＞carrying UCI＞the do not carry priority of the PUSCH of UCI.

Concrete, for the PUCCH that in same band, transmits and PUSCH, the priority of power division be PUCCH＞priority＞the do not carry priority of the PUSCH of UCI of PUSCH of priority carrying UCI, namely preferentially guarantee the transmitting power of PUCCH, in remaining band available launch power, the PUSCH power that guarantees carrying UCI does not reduce, and the power that reduces the PUSCH that does not carry UCI is to satisfy the maximum transmission power that all channel transmitting power sums in this band are no more than this band; Perhaps, if there is the PRACH transmission, the priority of power division is priority＞the do not carry priority of the PUSCH of UCI of PUSCH of priority＞carrying UCI of priority＞PRACH of PUCCH, the perhaps priority of the PUSCH of the priority of priority＞PUCCH of PRACH＞carrying UCI＞the do not carry priority of the PUSCH of UCI, namely preferentially guarantee the transmitting power of PUCCH or PRACH, in remaining band available launch power, the PUSCH power that guarantees carrying UCI does not reduce, and the power that reduces the PUSCH that does not carry UCI is to satisfy the maximum transmission power that all channel transmitting power sums in this band are no more than this band.For the up channel with equal priority that in same band, transmits, as not carrying a plurality of PUSCH of UCI, perhaps carry a plurality of PUSCH of UCI, perhaps a plurality of SRS, perhaps a plurality of PRACH reduce same ratio power, are no more than the band maximum transmission power of this band with the transmitting power sum that satisfies all carrier waves in this band.

For example, carrier wave 1 among the UE polymerization band1 and carrier wave 2, and the carrier wave among the polymerization band2 3, carrier wave 4 and carrier wave 5 carry out uplink, it (is that each band has disposed an expansion carrier wave particular cell (Especial cell as the carrier wave that transmits PUCCH that each band has disposed a particular carrier, Ecell), be similar to the Pcell among the Rel-10), as shown in Figure 5, the concrete behavior of UE is as follows:

UE determines the band maximum transmission power of each band correspondence by high-level signaling: it is P that the band maximum transmission power of band1 is given in configuration _{CMAX, 1}, it is P that the band maximum transmission power of band2 is given in configuration _{CMAX, 2}, and satisfy

P wherein _CMAXMaximum transmission power for the UE permission.

UE calculates the PUCCH transmitting power P among band1 and the band2 respectively according to formula (1) and b=1 (expression band1) or b=2 (expression band2) _{PUCCH, 1}And P _{PUCCH, 2}, wherein b is the band numbering; Calculate the PUSCH transmitting power P that does not have PUCCH to transmit simultaneously at a carrier wave among band1 and the band2 respectively according to formula (2) and b=1 or b=2 _{PUSCH, 2,1}, P _{PUSCH, 4,2}, P _{PUSCH, 5,2}Calculate the PUSCH transmitting power P that on a carrier wave, has PUCCH simultaneously among the band2 according to formula (3) and b=2 _{PUSCH, 3,2}

$P_{\mathrm{PUCCH},b}\left(i\right)=\min \left\{\begin{array}{c}{P}_{\mathrm{CMAX},c,b}\left(i\right),\\ P_{0\_\mathrm{PUCCH},b}+{\mathrm{PL}}_{c,b}+h_b(n_{\mathrm{CQI}},n_{\mathrm{HARQ}},n_{\mathrm{SR}})+{\mathrm{\Δ}}_{F\_\mathrm{PUCC}{H}_b}\left(F\right)+{\mathrm{\Δ}}_{\mathrm{TxDb}}\left(F^{\′}\right)+g_b\left(i\right)\end{array}\right\}$ Formula (1)

$P_{\mathrm{PUSCH},c,b}\left(i\right)=\min \left\{\begin{array}{c}{P}_{\mathrm{CMAX},c,b}\left(i\right),\\ 10{\log }_{10}\left(M_{\mathrm{PUSCH},c,b}\left(i\right)\right)+P_{O\_\mathrm{PUSCH},c,b}\left(j\right)+{\mathrm{\α}}_{c,b}\left(j\right)\·{\mathrm{PL}}_{c,b}+{\mathrm{\Δ}}_{\mathrm{TF},c,b}\left(i\right)+f_{c,b}\left(i\right)\end{array}\right\}$ Formula (2)

$P_{\mathrm{PUSCH},c,b}\left(i\right)=\min \left\{\begin{array}{c}10{\log }_{10}({\hat{P}}_{\mathrm{CMAX},c,b}\left(i\right)-{\hat{P}}_{\mathrm{PUCCH},b}\left(i\right)),\\ 10{\log }_{10}\left(M_{\mathrm{PUSCH},c,b}\left(i\right)\right)+P_{O\_\mathrm{PUSCH},c,b}\left(j\right)+{\mathrm{\α}}_{c,b}\left(j\right)\·{\mathrm{PL}}_{c,b}+{\mathrm{\Δ}}_{\mathrm{TF},c,b}\left(i\right)+f_{c,b}\left(i\right)\end{array}\right\}$ Formula (3)

UE judges whether the transmitting power sum of a plurality of carrier waves among each band surpasses the band maximum transmission power of this band: for band1, judge

Then UE can be directly according to the PUCCH among the power transmission band1 that calculates and the data on the PUSCH; For band2, judge ${\hat{P}}_{\mathrm{PUCCH},2}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{3,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{4,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{5,2}}>{\hat{P}}_{\mathrm{CMAX},2},$ Then UE needs the transmitting power among the band2 is reduced, to satisfy formula (4), namely the preferential transmitting power of PUCCH that guarantees does not reduce, residue band available horsepower is preferentially satisfied the PUSCH of carrying UCI, the PUSCH equal proportion of not carrying UCI is reduced power, be no more than the band2 maximum transmission power with the total transmitting power that satisfies a plurality of channels among the band2, b=2 wherein, j=3, w (i) reduces coefficient for power, value to this w of all PUSCH (i) is identical, and specific its w of PUSCH (i) can be 0 (being that power can be reduced to 0), and UE reduces transmitting power after the operation according to power and sends data on each up channel among the band2.

${\hat{P}}_{\mathrm{PUSCH},j,b}\left(i\right)=\min ({\hat{P}}_{\mathrm{PUSCH},j,b}\left(i\right),({\hat{P}}_{\mathrm{CMAX},b}\left(i\right)-{\hat{P}}_{\mathrm{PUCCH},b}\left(i\right)))$ With $\underset{c\≠j}{\mathrm{\Σ}}w\left(i\right)\·{\hat{P}}_{\mathrm{PUSCH},c,b}\left(i\right)\≤({\hat{P}}_{\mathrm{CMAX},b}\left(i\right)-{\hat{P}}_{\mathrm{PUCCH},b}\left(i\right)-{\hat{P}}_{\mathrm{PUSCH},j,b}\left(i\right))$ Formula (4)

Need to prove, in above-described embodiment, when not having the PUCCH transmission,

When not having the PUSCH transmission of carrying UCI,

Said process is suitable equally.Need to prove, in the said process

Be P _XLinear thresholding, for example

Visual actual conditions of constant coefficient and establishing, when X represents rated output at up channel.

And for example, the carrier wave 1 among the UE polymerization band1, carrier wave 2 and carrier wave 3, and the carrier wave among the band2 4 and carrier wave 5 carry out uplink, only has a Pcel1 transmission PUCCH among a plurality of band, as shown in Figure 6, the concrete behavior of UE is as follows:

UE and network side have been arranged the corresponding band maximum transmission power of each band: the band maximum transmission power of band1 is P _{CMAX, 1}, the band maximum transmission power of band2 is P _{CMAX, 2}, and satisfy

P wherein _CMAXMaximum transmission power for the UE permission.

UE calculates PUCCH transmitting power P among the band1 according to formula (1) and b=1 _{PUCCH, 1}, wherein b is the band numbering; Calculate the PUSCH transmitting power P on the corresponding carriers among band1 and the band2 respectively according to formula (2) and b=1 and b=2 _{PUSCH, 2,1}, P _{PUSCH, 3,1}, P _{PUSCH, 4,2}, P _{PUSCH, 5,2}

UE judges whether the transmitting power sum of a plurality of carrier waves among each band surpasses the band maximum transmission power of this band: for band1, judge

Need the transmitting power among the band1 be reduced, to satisfy formula (5), namely the preferential transmitting power of PUCCH that guarantees does not reduce, the PUSCH equal proportion of not carrying UCI is reduced power, be no more than the band1 maximum transmission power with the total transmitting power that satisfies a plurality of channels among the band1, b=1 wherein, w (i) reduces coefficient for power, identical to all PUSCH values, and specific its w of PUSCH (i) can be 0 (being that power can be reduced to 0), and the transmitting power after UE reduces according to power sends each up channel among the band1; For band2, judge Can be directly according to the data on a plurality of PUSCH among the power transmission band2 that calculates.

$\underset{c}{\mathrm{\Σ}}w\left(i\right)\·{\hat{P}}_{\mathrm{PUSCH},c,b}\left(i\right)\≤({\hat{P}}_{\mathrm{CMAX},b}\left(i\right)-{\hat{P}}_{\mathrm{PUCCH},b}\left(i\right))$ Formula (5)

Need to prove, in above-described embodiment, when not having the PUCCH transmission,

Said process is suitable equally.

Be example with SRS, the carrier wave 1 among the UE polymerization band1 and carrier wave 2, and the carrier wave among the band2 3 and carrier wave 4 carry out uplink, as shown in Figure 7, the concrete behavior of UE is as follows:

UE determines the band maximum transmission power of each band correspondence by high-level signaling: it is P that the band maximum transmission power of band1 is given in configuration _{CMAX, 1}, it is P that the band maximum transmission power of band2 is given in configuration _{CMAX, 2}, and satisfy

P wherein _CMAXThe transmitting power that allows for UE.

UE calculates SRS transmitting power P among band1 and the band2 respectively according to formula (6) and b=1 and b=2 _{SRS, 1,1}, P _{SRS, 2,1}And P _{SRS, 3,2}, wherein b is the band numbering.

P _{SRS, c, b}(i)=min{P _{CMAX, c, b}(i), P _{SRS_OFFSET, c, b}(m)+10log ₁₀(M _{SRS, c, b})+P _{O_PUSCH, c, b}(j)+α _{C, b}(j) PL _{C, b}+ f _{C, b}(i) } formula (6)

UE judges whether the transmitting power sum of a plurality of carrier waves among each band surpasses the band maximum transmission power of this band: for band1, judge

Need the transmitting power among the band1 be reduced, to satisfy formula (7)

Namely all the SRS equal proportions among the band1 are reduced power, be no more than the band1 maximum transmission power with the total transmitting power that satisfies a plurality of SRS among the band1, b=1 wherein, w (i) reduces coefficient for power, identical to all SRS (comprising cycle SRS and SRS aperiodic) value, the data on each SRS among the transmitting power transmission band1 after UE reduces according to power; For band2, judge

Can be directly according to the SRS among the rated output transmission band2.

Referring to Fig. 8, it is as follows that the maximum transmission power that allows based on UE during the maximum transmission power separate configurations of present embodiment midband carries out the method flow of uplink power control:

Step 800:UE obtains the maximum transmission power of each frequency band by high-level signaling or PDCCH signaling.

If UE and network side agreement obtain the maximum transmission power of each frequency band, for example arrange the maximum transmission power of each frequency band and divide the maximum transmission power that UE allows equally, then do not need signaling, also just do not need execution in step 800, the maximum transmission power that the UE acquisition allows self and the quantity of frequency band get final product.

Step 801:UE determines the transmitting power of the up channel on each carrier wave based on the maximum transmission power of each carrier wave and the power contorl parameters of this carrier wave correspondence.

Step 802:UE judges that whether the transmitting power sum of the up channel on the interior carrier wave of all frequency bands surpasses the maximum transmission power that described UE allows, if surpass, then continues step 803, otherwise continues step 804.

The maximum transmission power that step 803:UE allows based on described UE reduces the maximum transmission power of each frequency band, is no more than the maximum transmission power that described UE allows to satisfy the maximum transmission power sum that power reduces all frequency bands of operation back.Continue execution in step 804.

Preferable, the maximum transmission power that UE allows based on UE carries out equal proportion to the maximum transmission power of each frequency band and reduces; Perhaps, the maximum transmission power that UE allows based on UE reduces proportionality coefficient according to the power of each frequency band the maximum transmission power of each frequency band is reduced, wherein, it is incomplete same that the power of each frequency band reduces proportionality coefficient, and the power of each frequency band reduces proportionality coefficient and is not less than 0 and be not more than 1.It is that described UE and network side are made an appointment that the power of each frequency band reduces proportionality coefficient, perhaps for network side disposes to described UE by high-level signaling or PDCCH signaling, wherein said high-level signaling comprises Radio Resource control (RRC) signaling, medium access control (MAC) signaling.

Step 804:UE is for each frequency band, maximum transmission power based on this frequency band after the power reduction operation, judge whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band, if surpass, then continue step 805, otherwise continue step 806.

Step 805:UE carries out the power reduction based on the maximum transmission power of frequency band to the uplink channel transmission power on the carrier wave in this frequency band, is no more than the maximum transmission power of described frequency band with the transmitting power sum that satisfies the up channel on the carrier wave that is in after the power reduction is operated in the identical frequency band.

Preferable, UE preferentially reduces the transmitting power of the minimum up channel of priority on the carrier wave in this frequency band (band) based on the maximum transmission power of frequency band, and UE reduces transmitting power to a plurality of up channels that have equal priority on the carrier wave in the same band according to same ratio.The priority of each up channel is priority＞the do not carry priority of the PUSCH of UCI of PUSCH of priority＞carrying UCI of priority＞PRACH of PUCCH on the carrier wave in the present embodiment in the identical frequency band, perhaps, the priority of the PUSCH of the priority of priority＞PUCCH of PRACH＞carrying UCI＞the do not carry priority of the PUSCH of UCI.

Concrete, for the PUCCH that in same band, transmits and PUSCH, the priority of power division be PUCCH＞priority＞the do not carry priority of the PUSCH of UCI of PUSCH of priority carrying UCI, namely preferentially guarantee the transmitting power of PUCCH, in remaining band available launch power, the PUSCH power that guarantees carrying UCI does not reduce, and the power that reduces the PUSCH that does not carry UCI is to satisfy the maximum transmission power that all channel transmitting power sums in this band are no more than this band; Perhaps, if there is the PRACH transmission, the priority of power division is priority＞the do not carry priority of the PUSCH of UCI of PUSCH of priority＞carrying UCI of priority＞PRACH of PUCCH, the perhaps priority of the PUSCH of the priority of priority＞PUCCH of PRACH＞carrying UCI＞the do not carry priority of the PUSCH of UCI, namely preferentially guarantee the transmitting power of PUCCH or PRACH, in remaining band available launch power, the PUSCH power that guarantees carrying UCI does not reduce, and the power that reduces the PUSCH that does not carry UCI is to satisfy the maximum transmission power that all channel transmitting power sums in this band are no more than this band.Reduce same ratio power for the up channel with equal priority that in same band, transmits, be no more than the band maximum transmission power of this band with the transmitting power sum that satisfies all carrier waves in this band.

Step 806:UE remains unchanged the transmission power level of the up channel that calculates on each carrier wave.

For example, carrier wave 1 among the UE polymerization band1 and carrier wave 2, and the carrier wave among the band2 3, carrier wave 4 and carrier wave 5 carry out uplink, it (is that each band has disposed an expansion carrier wave E-cell as the carrier wave that transmits PUCCH that each band has disposed a particular carrier, be similar to the Pcell among the Rel-10), as shown in Figure 5, the concrete behavior of UE is as follows:

UE determines the band maximum transmission power of each band correspondence by high-level signaling: it is P that the band maximum transmission power of band1 is given in configuration _{CMAX, 1}, it is P that the band maximum transmission power of band2 is given in configuration _{CMAX, 2}, P _CMAXBe the maximum transmission power of UE permission, and P _{CMAX, 1}, P _{CMAX, 2}With P _CMAXSeparate configurations.

UE calculates PUCCH transmitting power P among band1 and the band2 respectively according to formula (1) and b=1 and b=2 _{PUCCH, 1}And P _{PUCCH, 2}, wherein b is the band numbering; Calculate the PUSCH transmitting power P that does not have PUCCH to transmit simultaneously at a carrier wave among band1 and the band2 respectively according to formula (2) and b=1 and b=2 _{PUSCH, 2,1}, P _{PUSCH, 4,2}, P _{PUSCH, 5,2}Calculate the PUSCH transmitting power P that on a carrier wave, has PUCCH simultaneously among the band2 according to formula (3) and b=2 _{PUSCH, 3,2}

UE judges at first whether the transmitting power sum of all carrier waves among all band surpasses the maximum transmission power that UE allows.

When judging ${\hat{P}}_{\mathrm{PUCCH},1}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{2,1}}+{\hat{P}}_{\mathrm{PUCCH},2}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{3,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{4,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{5,2}}>{\hat{P}}_{\mathrm{CMAX}}$ The time, need be according to formula (8)

Band maximum transmission power to each band carries out the equal proportion reduction, perhaps according to formula (9)

The band maximum transmission power of each band is carried out reducing based on the power of this band correspondence the power reduction (non-equal proportion) of proportionality coefficient, obtain the band maximum transmission power P that power reduces each band of back _{CMAX, 1}', P _{CMAX, 2}';

UE further judges the band maximum transmission power after power that whether the transmitting power sum of a plurality of carrier waves among each band surpasses this band reduces: for band1, judge

Need carry out power and reduce, the maximum transmission power P after namely band1 power reduces _{CMAX, 2}' preferentially satisfy the PUCCH through-put power, and reduce the PUSCH through-put power to satisfy the band1 maximum transmission power, the PUSCH transmitted power that power reduces on the carrier wave 2 of back is

UE sends according to the PUSCH power that the PUCCH on the carrier wave 1 calculates after power on power and the carrier wave 2 reduces; For band2, judge ${\hat{P}}_{\mathrm{PUCCH},2}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{3,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{4,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{5,2}}>{{\hat{P}}_{\mathrm{CMAX},2}}^{\′},$ Need the transmitting power among the band2 be reduced, to satisfy formula (10), namely the preferential transmitting power of PUCCH that guarantees does not reduce, residue band available horsepower is preferentially satisfied the PUSCH of carrying UCI, the PUSCH equal proportion of not carrying UCI is reduced power, be no more than the band2 maximum transmission power with the total transmitting power that satisfies a plurality of channels among the band2, b=2 wherein, j=3, w (i) reduces coefficient for power, identical to all PUSCH values, and specific its w of PUSCH (i) can be 0 (being that power can be reduced to 0), each up channel among the transmitting power transmission band2 after UE reduces according to power.

${\hat{P}}_{\mathrm{PUSCH},j,b}\left(i\right)=\min ({\hat{P}}_{\mathrm{PUSCH},j,b}\left(i\right),({\hat{P}}_{\mathrm{CMAX},b}{\left(i\right)}^{\′}-{\hat{P}}_{\mathrm{PUCCH},b}\left(i\right)))$ With $\underset{c\≠j}{\mathrm{\Σ}}w\left(i\right)\·{\hat{P}}_{\mathrm{PUSCH},c,b}\left(i\right)\≤({\hat{P}}_{\mathrm{CMAX},b}{\left(i\right)}^{\′}-{\hat{P}}_{\mathrm{PUCCH},b}\left(i\right)-{\hat{P}}_{\mathrm{PUSCH},j,b}\left(i\right))$ Formula (10)

When judging ${\hat{P}}_{\mathrm{PUCCH},1}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{2,1}}+{\hat{P}}_{\mathrm{PUCCH},2}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{3,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{4,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{5,2}}\≤{\hat{P}}_{\mathrm{CMAX}}$ The time, do not need to reduce the band maximum transmission power of each band; UE judges further whether the transmitting power sum of a plurality of carrier waves among each band surpasses the band maximum transmission power of this band: for band1, judge Can be directly according to the PUCCH among the power transmission band1 that calculates and the data on the PUSCH; For band2, judge ${\hat{P}}_{\mathrm{PUCCH},2}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{3,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{4,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{5,2}}>{\hat{P}}_{\mathrm{CMAX},2},$ Need the transmitting power among the band2 be reduced, to satisfy formula (4), namely the preferential transmitting power of PUCCH that guarantees does not reduce, residue band available horsepower is preferentially satisfied the PUSCH of carrying UCI, the PUSCH equal proportion of not carrying UCI is reduced power, be no more than the band2 maximum transmission power with the total transmitting power that satisfies a plurality of channels among the band2, b=2 wherein, j=3, w (i) reduces coefficient for power, identical to all PUSCH values, and specific its w of PUSCH (i) can be 0 (being that power can be reduced to 0), each up channel among the transmitting power transmission band2 after UE reduces according to power.

Need to prove, in above-described embodiment, when not having the PUCCH transmission,

When not having the PUSCH transmission of carrying UCI,

Said process is suitable equally.

And for example, the carrier wave 1 among the UE polymerization band1, carrier wave 2 and carrier wave 3, and the carrier wave among the band2 4 and carrier wave 5 carry out uplink, only has a Pcell transmission PUCCH among a plurality of band, as shown in Figure 6, the concrete behavior of UE is as follows:

UE determines the band maximum transmission power of each band correspondence by high-level signaling: it is P that the band maximum transmission power of band1 is given in configuration _{CMAX, 1}, it is P that the band maximum transmission power of band2 is given in configuration _{CMAX, 2}, P _CMAXBe the maximum transmission power of UE permission, and P _{CMAX, 1}, P _{CMAX, 2}With P _CMAXSeparate configurations.

UE calculates the PUCCH transmitting power P of carrier wave 1 among the band1 according to formula (1) and b=1 _{PUCCH, 1}, wherein b is the band numbering; Calculate PUSCH transmitting power P on the corresponding carrier wave (as carrier wave 2-5) respectively according to formula (2) and b=1 and b=2 _{PUSCH, 2,1}, P _{PUSCH, 3,1}, P _{PUSCH, 4,2}, P _{PUSCH, 5,2}

UE judges at first whether the transmitting power sum of all carrier waves among all band surpasses the maximum transmission power that UE allows:

When judging ${\hat{P}}_{\mathrm{PUCCH},1}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{2,1}}+{\hat{P}}_{\mathrm{PUCCH},\mathrm{3,1}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{4,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{5,2}}>{\hat{P}}_{\mathrm{CMAX}}$ The time, UE need carry out equal proportion to the band maximum transmission power of each band according to formula (8) and reduce, perhaps carry out carrying out power reduction (non-equal proportion) based on the power reduction proportionality coefficient of band correspondence according to the band maximum transmission power of formula (9) to each band, obtain the band maximum transmission power P that power reduces each band of back _{PMAX, 1}', P _{CMAX, 2}';

UE further judges the band maximum transmission power after power that whether the transmitting power sum of a plurality of carrier waves among each band surpasses this band reduces: for band1, judge

Then need the transmitting power among the band1 is reduced, to satisfy formula (11), namely the preferential transmitting power of PUCCH that guarantees does not reduce, the PUSCH equal proportion of not carrying UCI is reduced power, be no more than the band1 maximum transmission power with the total transmitting power that satisfies a plurality of channels among the band1, b=1 wherein, w (i) reduces coefficient for power, identical to all PUSCH values, and specific its corresponding w (i) of PUSCH can be 0 (being that power can be reduced to 0), the data on each up channel among the transmitting power transmission band1 after UE reduces according to power; For band2, judge

Need the transmitting power among the band2 be reduced, to satisfy formula (12), namely a plurality of PUSCH equal proportions are reduced power, be no more than the band2 maximum transmission power with the total transmitting power that satisfies a plurality of channels among the band2, b=2 wherein, w (i) reduces coefficient for power, and is identical to all PUSCH values, and specific its corresponding w (i) of PUSCH can be 0 (being that power can be reduced to 0), the data on each up channel among the transmitting power transmission band2 after UE reduces according to power.

$\underset{c}{\mathrm{\Σ}}w\left(i\right)\·{\hat{P}}_{\mathrm{PUSCH},c,b}\left(i\right)\≤({{\hat{P}}_{\mathrm{CMAX},b}}^{\′}\left(i\right)-{\hat{P}}_{\mathrm{PUCCH},b}\left(i\right))$ Formula (11)

$\underset{c}{\mathrm{\Σ}}w\left(i\right)\·{\hat{P}}_{\mathrm{PUSCH},c,b}\left(i\right)\≤{\hat{P}}_{\mathrm{CMAX},b}{\left(i\right)}^{\′}$ Formula (12)

When judging ${\hat{P}}_{\mathrm{PUCCH},1}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{2,1}}+{\hat{P}}_{\mathrm{PUCCH},\mathrm{3,1}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{4,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{5,2}}\≤{\hat{P}}_{\mathrm{CMAX}}$ The time, do not need to reduce the band maximum transmission power of each band; UE judges further whether the transmitting power sum of a plurality of carrier waves among each band surpasses the band maximum transmission power of this band: for band1, judge

Need reduce carrying out power among the band1, to satisfy formula (5), namely the preferential transmitting power of PUCCH that guarantees does not reduce, the PUSCH equal proportion of not carrying UCI is reduced power, be no more than the band1 maximum transmission power with the total transmitting power that satisfies a plurality of channels among the band1, b=1 wherein, w (i) reduces coefficient for power, identical to all PUSCH values, and specific its corresponding w (i) of PUSCH can be 0 (being that power can be reduced to 0), the data on each up channel among the transmitting power transmission band1 after UE reduces according to power; For band2, judge

Can be directly according to the data on a plurality of PUSCH among the rated output transmission band2.

Need to prove, in above-described embodiment, when not having the PUCCH transmission,

Said process is suitable equally.

Be example with SRS, the carrier wave 1 among the UE polymerization band1 and carrier wave 2, and the carrier wave among the band2 3 and carrier wave 4 carry out uplink, as shown in Figure 7, the concrete behavior of UE is as follows:

UE determines the band maximum transmission power of each band correspondence by high-level signaling: it is P that the band maximum transmission power of band1 is given in configuration _{CMAX, 1}, it is P that the band maximum transmission power of band2 is given in configuration _{CMAX, 2}, P _CMAXBe the maximum transmission power of UE permission, and P _{CMAX, 1}, P _{CMAX, 2}With P _CMAXSeparate configurations.

UE calculates SRS transmitting power P among band1 and the band2 respectively according to formula (6) and b=1 and b=2 _{SRS, 1,1}, P _{SRS, 2,1}And P _{SRS, 3,2}, wherein b is the band numbering.

UE judges at first whether the transmitting power sum of all carrier waves among all band surpasses the maximum transmission power that UE allows:

When judging

The time, UE need carry out equal proportion to the band maximum transmission power of each band according to formula (8) and reduce, perhaps according to formula (9) the band maximum transmission power of each band is carried out reducing based on the power of band correspondence the power reduction (non-equal proportion) of proportionality coefficient, obtain the band maximum transmission power P that power reduces each band of back _{CMAX, 1}', P _{CMAX, 2}';

UE judges whether the transmitting power sum of a plurality of carrier waves among further each band surpasses the band maximum transmission power after this band power reduces: for band1, judge Need carry out power to band1 and reduce, to satisfy formula (13)

Namely all the SRS equal proportions among the band1 are reduced power, be no more than the band1 maximum transmission power with the total transmitting power that satisfies a plurality of SRS among the band1, b=1 wherein, w (i) reduces coefficient for power, it is identical to all SRS (comprising cycle SRS and SRS aperiodic) value, and the transmitting power after UE reduces according to power sends each SRS; For band2, judge

Can be directly according to the SRS among the rated output transmission band2.

When judging

The time, do not need to reduce the band maximum transmission power of each band; UE judges further whether the transmitting power sum of a plurality of carrier waves among each band surpasses the band maximum transmission power of this band: for band1, judge

Can be directly according to the SRS among the power transmission band2 that calculates; For band2, judge

Can be directly according to the SRS among the power transmission band2 that calculates.

Referring to Fig. 9, it is as follows that the maximum transmission power that allows based on frequency band during the maximum transmission power separate configurations of present embodiment midband carries out the method flow of uplink power control:

Step 900:UE obtains the maximum transmission power of each frequency band by high-level signaling or PDCCH signaling.

If UE and network side agreement obtain the maximum transmission power of each frequency band, for example arrange the maximum transmission power of each frequency band and divide the maximum transmission power that UE allows equally, then do not need signaling, also just do not need execution in step 900, the maximum transmission power that the UE acquisition allows self and the quantity of frequency band get final product.

Step 901:UE determines the transmitting power of the up channel on each carrier wave based on the maximum transmission power of each carrier wave and the power contorl parameters of this carrier wave correspondence.

Step 902:UE judges whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band.

Step 903:UE records the first kind frequency band of the maximum transmission power that surpasses frequency band and does not surpass the second class frequency band of the maximum transmission power of frequency band.

Step 904:UE judges whether the maximum transmission power sum of each frequency band in total transmitting power of each frequency band in the second class frequency band and the first kind frequency band surpasses the maximum transmission power that described UE allows, if surpass, then continue step 905, otherwise continue step 906, wherein, total transmitting power of each frequency band is the transmitting power sum of each up channel on the carrier wave in this frequency band in the described second class frequency band.

The maximum transmission power that step 905:UE allows based on described UE reduces the maximum transmission power of each frequency band, is no more than the maximum transmission power that described UE allows to satisfy the maximum transmission power sum that power reduces each frequency band of operation back.Perhaps, the maximum transmission power that UE allows based on described UE reduces total transmitting power of each frequency band in the maximum transmission power of each frequency band in the first kind frequency band and the second class frequency band, is no more than the maximum transmission power of described UE permission with total transmitting power sum of each frequency band in the maximum transmission power that satisfies each frequency band in the first kind frequency band after power reduces and the second class frequency band.Continue step 906.

Preferable, the maximum transmission power that UE allows based on UE carries out equal proportion to the maximum transmission power of each frequency band and reduces; Perhaps, the maximum transmission power that UE allows based on UE reduces proportionality coefficient according to the power of each frequency band the maximum transmission power of each frequency band is reduced, wherein, it is incomplete same that the power of each frequency band reduces proportionality coefficient, and the power of each frequency band reduces proportionality coefficient and is not less than 0 and be not more than 1.It is that described UE and network side are made an appointment that the power of each frequency band reduces proportionality coefficient, perhaps for network side disposes to described UE by high-level signaling or PDCCH signaling, wherein said high-level signaling comprises Radio Resource control (RRC) signaling, medium access control (MAC) signaling.

Step 906:UE is to each frequency band, based on the maximum transmission power of this frequency band after the power reduction operation, judge whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band, as if surpassing, then continue step 907, otherwise continue step 908.

Step 907:UE carries out the power reduction based on the maximum transmission power of frequency band to the uplink channel transmission power on the carrier wave in this frequency band, is no more than the maximum transmission power of described frequency band with the transmitting power sum that satisfies the up channel on the carrier wave that is in after the power reduction is operated in the identical frequency band.

Preferable, UE preferentially reduces the transmitting power of the minimum up channel of priority on the carrier wave in this frequency band (band) based on the maximum transmission power of frequency band, and UE reduces transmitting power to a plurality of up channels that have equal priority on the carrier wave in the same band according to same ratio.The priority of each up channel is priority＞the do not carry priority of the PUSCH of UCI of PUSCH of priority＞carrying UCI of priority＞PRACH of PUCCH on the carrier wave in the present embodiment in the identical frequency band, perhaps, the priority of the PUSCH of the priority of priority＞PUCCH of PRACH＞carrying UCI＞the do not carry priority of the PUSCH of UCI.

Concrete, for the PUCCH that in same band, transmits and PUSCH, the priority of power division be PUCCH＞priority＞the do not carry priority of the PUSCH of UCI of PUSCH of priority carrying UCI, namely preferentially guarantee the transmitting power of PUCCH, in remaining band available launch power, the PUSCH power that guarantees carrying UCI does not reduce, and the power that reduces the PUSCH that does not carry UCI is to satisfy the maximum transmission power that all channel transmitting power sums in this band are no more than this band; Perhaps, if there is the PRACH transmission, the priority of power division is priority＞the do not carry priority of the PUSCH of UCI of PUSCH of priority＞carrying UCI of priority＞PRACH of PUCCH, the perhaps priority of the PUSCH of the priority of priority＞PUCCH of PRACH＞carrying UCI＞the do not carry priority of the PUSCH of UCI, namely preferentially guarantee the transmitting power of PUCCH or PRACH, in remaining band available launch power, the PUSCH power that guarantees carrying UCI does not reduce, and the power that reduces the PUSCH that does not carry UCI is to satisfy the maximum transmission power that all channel transmitting power sums in this band are no more than this band.Reduce same ratio power for the up channel with equal priority that in same band, transmits, be no more than the band maximum transmission power of this band with the transmitting power sum that satisfies all carrier waves in this band.

Step 908:UE remains unchanged the transmission power level of the up channel that calculates on each carrier wave.

For example, carrier wave 1 among the UE polymerization band1 and carrier wave 2, and the carrier wave among the band2 3, carrier wave 4 and carrier wave 5 carry out uplink, it (is that each band has disposed an expansion carrier wave E-cell as the carrier wave that transmits PUCCH that each band has disposed a particular carrier, be similar to the Pcell among the Rel-10), as shown in Figure 5, the concrete behavior of UE is as follows:

UE determines the band maximum transmission power of each band correspondence by high-level signaling: it is P that the band maximum transmission power of band1 is given in configuration _{CMAX, 1}, it is P that the band maximum transmission power of band2 is given in configuration _{CMAX, 2}, P _CMAXBe the maximum transmission power of UE permission, and P _{CMAX, 1}, P _{CMAX, 2}With P _CMAXSeparate configurations.

UE calculates PUCCH transmitting power P among band1 and the band2 respectively according to formula (1) and b=1 and b=2 _{PUCCH, 1}And P _{PUCCH, 2}, wherein b is the band numbering; Calculate the PUSCH transmitting power P that does not have PUCCH to transmit simultaneously at a carrier wave among band1 and the band2 respectively according to formula (2) and b=1 and b=2 _{PUSCH, 2,1}, P _{PUSCH, 4,2}, P _{PUSCH, 5,2}Calculate the PUSCH transmitting power P that on a carrier wave, has PUCCH simultaneously among the band2 according to formula (3) and b=2 _{PUSCH, 3,2}

UE judges at first whether the transmitting power sum of a plurality of carrier waves among each band surpasses the band maximum transmission power of this band: for band1, suppose to judge

Wouldn't reduce channel transmitting power among the band1; For band2, suppose to judge ${\hat{P}}_{\mathrm{PUCCH},2}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{3,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{4,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{5,2}}>{\hat{P}}_{\mathrm{CMAX},2},$ Need carry out power reduces.

Whether the transmitting power (i.e. total transmitting power of this band) that the further judgement of UE does not need to carry out all carrier waves among the under powered band surpasses the maximum transmission power that UE allows with the band maximum transmission power sum that need carry out under powered band:

Namely ought judge ${\hat{P}}_{\mathrm{PUCCH},1}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{2,1}}+{\hat{P}}_{\mathrm{CMAX},2}>{\hat{P}}_{\mathrm{CMAX}}$ The time, then:

Method A:UE carries out equal proportion according to formula (8) to the band maximum transmission power of each band and reduces, perhaps according to formula (9) the band maximum transmission power of each band is carried out reducing based on the power of band correspondence the power reduction (non-equal proportion) of proportionality coefficient, obtain the band maximum transmission power P that power reduces each band of back _{CMAX, 1}', P _{CMAX, 2}';

Band maximum transmission power after the power whether the transmitting power sum of further judging a plurality of carrier waves among each band then surpasses this band reduces (can be only to judge that the band maximum transmission power after band that actual transmission power surpasses the band maximum transmission power reduces based on power do further judgement): for band1, judge

(be the hypothesis result herein, band maximum transmission power after the power that calculates based on formula (8) and (9) in the reality reduces may be different, then the judged result of the whether power limited that obtains based on different band maximum transmission power for a band inside also may be different), the maximum transmission power P after need reducing based on band1 power _{CMAX, 1}' preferentially satisfy the PUCCH through-put power, and reduce the PUSCH through-put power to satisfy the band1 maximum transmission power after power reduces, the PUSCH transmitted power after namely power reduces on the carrier wave 2 is

UE sends according to the PUSCH power that the PUCCH on the carrier wave 1 calculates after power on power and the carrier wave 2 reduces; For band2, carrying out power according to formula (10) reduces, namely the preferential transmitting power of PUCCH that guarantees does not reduce, residue band available horsepower is preferentially satisfied the PUSCH of carrying UCI, the PUSCH equal proportion of not carrying UCI is reduced power, band2 maximum transmission power after being no more than power and reducing with the total transmitting power that satisfies a plurality of channels among the band2, b=2 wherein, j=3, w (i) reduces coefficient for power, identical to all PUSCH values, and specific its w of PUSCH (i) can be 0 (being that power can be reduced to 0), each up channel among the transmitting power transmission band2 after UE reduces according to power.

Method B:UE will not need to carry out the actual emission power sum of the inner channel of under powered band (being band1) as the band maximum transmission power of this band (even

), and according to formula (8) the band maximum transmission power of each band is carried out equal proportion and reduce, perhaps according to formula (9) the band maximum transmission power of each band is carried out reducing based on the power of band correspondence the power reduction (non-equal proportion) of proportionality coefficient, obtain the band maximum transmission power P that power reduces each band of back _{CMAX, 1}', P _{CMAX, 2}';

UE judges that further whether the transmitting power sum of a plurality of carrier waves among each band is above the band maximum transmission power after the power reduction of this band then; Perhaps, more excellent, total transmitting power of considering the inner a plurality of channels of each band in the method always can be above the band maximum transmission power after the power reduction, therefore can not judge yet, directly each band being carried out internal power reduces: for band1, with the maximum transmission power P after the reduction of band1 power _{CMAX, 1}' preferentially satisfy the PUCCH through-put power, and reduce the PUSCH through-put power to satisfy the band1 maximum transmission power, the PUSCH transmitted power after namely power reduces on the carrier wave 2 is UE sends according to the PUSCH power that the PUCCH on the carrier wave 1 calculates after power on power and the carrier wave 2 reduces; For band2, carrying out power according to formula (10) reduces, namely the preferential transmitting power of PUCCH that guarantees does not reduce, residue band available horsepower is preferentially satisfied the PUSCH of carrying UCI, the PUSCH equal proportion of not carrying UCI is reduced power, band2 maximum transmission power after being no more than power and reducing with the total transmitting power that satisfies a plurality of channels among the band2, b=2 wherein, j=3, w (i) reduces coefficient for power, identical to all PUSCH values, and specific its w of PUSCH (i) can be 0 (being that power can be reduced to 0), each up channel among the transmitting power transmission band2 after UE reduces according to power.

Otherwise, when judging

The time, then: UE only need reduce channel transmitting power among the band2 based on the maximum transmission power of band2, to satisfy formula (4), namely the preferential transmitting power of PUCCH that guarantees does not reduce, residue band available horsepower is preferentially satisfied the PUSCH of carrying UCI, the PUSCH equal proportion of not carrying UCI is reduced power, band2 maximum transmission power after being no more than power and reducing with the total transmitting power that satisfies a plurality of channels among the band2, b=2 wherein, j=3, w (i) reduces coefficient for power, identical to all PUSCH values, and specific its w of PUSCH (i) can be 0 (being that power can be reduced to 0), each up channel on the transmitting power transmission band2 after UE reduces according to power, the band1 of UE does not need to reduce power, directly according to each up channel among the rated output transmission band1.

Need to prove, in above-described embodiment, when not having the PUCCH transmission,

When not having the PUSCH transmission of carrying UCI,

Said process is suitable equally.

And for example, the carrier wave 1 among the UE polymerization band1, carrier wave 2 and carrier wave 3, and the carrier wave among the band2 4 and carrier wave 5 carry out uplink, only has a Pcell transmission PUCCH among a plurality of band, as shown in Figure 6, the concrete behavior of UE is as follows:

UE determines the band maximum transmission power of each band correspondence by high-level signaling: it is P that the band maximum transmission power of band1 is given in configuration _{CMAX, 1}, it is P that the band maximum transmission power of band2 is given in configuration _{CMAX, 2}, P _CMAXBe the maximum transmission power of UE permission, and P _{CMAX, 1}, P _{CMAX, 2}With P _CMAXSeparate configurations.

UE calculates the PUCCH transmitting power P of carrier wave 1 among the band1 according to formula (1) and b=1 _{PUCCH, 1}, wherein b is the band numbering; Calculate PUSCH transmitting power P on the corresponding carrier wave (as carrier wave 2-5) respectively according to formula (2) and b=1 and b=2 _{PUSCH, 2,1}, P _{PUSCH, 3,1}, P _{PUSCH, 4,2}, P _{PUSCH, 5,2}

UE judges at first whether the transmitting power sum of a plurality of carrier waves among each band surpasses the band maximum transmission power of this band: for band1, suppose to judge Need carry out power reduces; For band2, suppose to judge

Wouldn't need the channel among the band2 is reduced power.

Whether the transmitting power that the further judgement of UE does not need to carry out all carrier waves among the under powered band surpasses the maximum transmission power that UE allows with the band maximum transmission power sum that need carry out under powered band:

When judging ${\hat{P}}_{\mathrm{CMAX},1}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{4,2}}+{\hat{P}}_{\mathrm{PUSCH},\mathrm{5,2}}>{\hat{P}}_{\mathrm{CMAX}}$ The time, then:

Method A:UE carries out equal proportion according to formula (8) to the band maximum transmission power of each band and reduces, perhaps according to formula (9) the band maximum transmission power of each band is carried out reducing based on the power of band correspondence the power reduction (non-equal proportion) of proportionality coefficient, obtain the band maximum transmission power P that power reduces each band of operation back _{CMAX, 1}', P _{CMAX, 2}';

UE further judges band maximum transmission power after power that whether the transmitting power sum of a plurality of carrier waves among each band surpasses this band reduces (can be only the band maximum transmission power after judging band that actual transmission power surpasses the band maximum transmission power and reducing based on power being done further judgement) then: for band1, carrying out power according to formula (11) reduces, namely the preferential transmitting power of PUCCH that guarantees does not reduce, a plurality of PUSCH equal proportions are reduced power, be no more than the band1 maximum transmission power with the total transmitting power that satisfies a plurality of channels among the band1, b=1 wherein, w (i) reduces coefficient for power, identical to all PUSCH values, and specific its corresponding w (i) of PUSCH can be 0 (being that power can be reduced to 0), the data on each up channel among the transmitting power transmission band1 after UE reduces according to power; For band2, judge

(be the hypothesis result herein, band maximum transmission power after the power that calculates based on formula (8) and (9) in the reality reduces may be different, then the judged result of the whether power limited that obtains based on different band maximum transmission power for a band inside also may be different), directly send data on each up channel among the band2 according to rated output.

Method B:UE will not need to carry out the actual emission power sum of the inner channel of under powered band (being band2) as the band maximum transmission power of this band (even

), and according to formula (8) the band maximum transmission power of each band is carried out equal proportion and reduce, perhaps according to formula (9) the band maximum transmission power of each band is carried out reducing based on the power of band correspondence the power reduction (non-equal proportion) of proportionality coefficient, obtain the band maximum transmission power P that power reduces each band of back _{CMAX, 1}', P _{CMAX, 2}';

UE judges that further whether the transmitting power sum of a plurality of carrier waves among each band is above the band maximum transmission power after the power reduction of this band then, perhaps more excellent, total transmitting power of considering the inner a plurality of channels of each band in the method always can be above the band maximum transmission power after the power reduction, therefore can not judge yet, directly each band being carried out internal power reduces: for band1, carrying out power according to formula (11) reduces, namely the preferential transmitting power of PUCCH that guarantees does not reduce, a plurality of PUSCH equal proportions are reduced power, band1 maximum transmission power after being no more than power and reducing with the total transmitting power that satisfies a plurality of channels among the band1, b=1 wherein, w (i) reduces coefficient for power, identical to all PUSCH values, and specific its w of PUSCH (i) can be 0 (being that power can be reduced to 0), the data on each up channel among the transmitting power transmission band1 after UE reduces according to power; For band2, carrying out power according to formula (12) reduces, namely a plurality of PUSCH equal proportions are reduced power, band2 maximum transmission power after being no more than power and reducing with the total transmitting power that satisfies a plurality of channels among the band2, b=2 wherein, w (i) reduces coefficient for power, and is identical to all PUSCH values, and specific its corresponding w (i) of PUSCH can be 0 (being that power can be reduced to 0), the data on each up channel among the transmitting power transmission band2 after UE reduces according to power.

Otherwise, when judging

The time, then: UE only need reduce channel transmitting power among the band1 based on the maximum transmission power of band1, to satisfy formula (5), namely the preferential transmitting power of PUCCH that guarantees does not reduce, a plurality of PUSCH equal proportions are reduced power, be no more than the band1 maximum transmission power with the total transmitting power that satisfies a plurality of channels among the band1, b=1 wherein, w (i) reduces coefficient for power, identical to all PUSCH values, and specific its corresponding w (i) of PUSCH can be 0 (being that power can be reduced to 0), data on each up channel on the transmitting power transmission band1 after UE reduces according to power, the band1 of UE does not need to reduce power, directly according to the data on each up channel among the power transmission band2 that calculates.

Need to prove, in above-described embodiment, when not having the PUCCH transmission,

Said process is suitable equally.

Be example with SRS, UE judges at first whether the transmitting power sum of a plurality of carrier waves among each band surpasses the band maximum transmission power of this band: for band1, suppose to judge

Wouldn't need the channel among the band1 is reduced power; For band2, suppose to judge

Wouldn't need the channel among the band2 is reduced power.

Whether the transmitting power that the further judgement of UE does not need to carry out all carrier waves among the under powered band surpasses the maximum transmission power that UE allows with the band maximum transmission power sum that need carry out under powered band:

When judging ${\hat{P}}_{\mathrm{SRS},\mathrm{1,1}}+{\hat{P}}_{\mathrm{SRS},\mathrm{2,1}}+{\hat{P}}_{\mathrm{SRS},\mathrm{3,2}}>{\hat{P}}_{\mathrm{CMAX}}$ The time, then:

Method A:UE carries out equal proportion according to formula (8) to the band maximum transmission power of each band and reduces, perhaps according to formula (9) the band maximum transmission power of each band is carried out reducing based on the power of band correspondence the power reduction (non-equal proportion) of proportionality coefficient, obtain the band maximum transmission power P that power reduces each band of back _{CMAX, 1}', P _{CMAX, 2}';

UE further judges the band maximum transmission power after power that whether the transmitting power sum of a plurality of carrier waves among each band surpasses this band reduces then: for band1, judge Need carry out power to band1 reduces, to satisfy formula (13), namely all the SRS equal proportions among the band1 are reduced power, be no more than the band1 maximum transmission power with the total transmitting power that satisfies a plurality of SRS among the band1, b=1 wherein, w (i) reduces coefficient for power, and is identical to all SRS (comprising cycle SRS and SRS aperiodic) value, and the transmitting power after UE reduces according to power sends each SRS among the band1; For band2, judge

Can be directly according to the SRS among the power transmission band2 that calculates.

Method B:UE will not need to carry out the actual emission power sum of the inner channel of under powered band (being band2) as the band maximum transmission power of this band (even

), and according to formula (8) the band maximum transmission power of each band is carried out equal proportion and reduce, perhaps according to formula (9) the band maximum transmission power of each band is carried out reducing based on the power of band correspondence the power reduction (non-equal proportion) of proportionality coefficient, obtain the band maximum transmission power P that power reduces each band of back _{CMAX, 1}', P _{CMAX, 2}';

UE judges that further whether the transmitting power sum of a plurality of carrier waves among each band is above the band maximum transmission power after the power reduction of this band then, perhaps more excellent, total transmitting power of considering the inner a plurality of channels of each band in the method always can be above the band maximum transmission power after the power reduction, therefore can not judge yet, directly each band being carried out internal power reduces: for band1, carrying out power according to formula (13) reduces, namely all the SRS equal proportions among the band1 are reduced power, band1 maximum transmission power after being no more than power and reducing with the total transmitting power that satisfies a plurality of SRS among the band1, b=1 wherein, w (i) reduces coefficient for power, identical to all SRS (comprising cycle SRS and SRS aperiodic) value, the transmitting power after UE reduces according to power sends each SRS among the band1; For band2, the SRS on the carrier wave 3 is carried out power reduce

Transmitting power after UE reduces according to power sends the SRS among the band2.

Otherwise, when judging

The time, then: UE does not need to carry out power at any one band to be reduced, can be directly according to each SRS among rated output transmission band1 and the band2.

Need to prove, when the SRS in the present embodiment replaces with PUSCH or PUCCH or PRACH channel, same being suitable for.

Need to prove, the maximum transmission power that UE among said method and the embodiment allows, band maximum transmission power and carrier wave maximum transmission power are to have considered the power behind the back-off, namely considered back-off parameter MPR (Maximum Power Reduction, the maximum power rollback), A-MPR (Additional-Maximum Power Reduction, extra maximum power rollback), P-MPR (Power Management Maximum Power Reduction, power management maximum power rollback) and Δ Tc (Allowed operating band edge transmission power relaxation, the sideband through-put power permission amount that allows) power, above-mentioned back-off parameter can share set of parameter by all band, perhaps also can each band definition one cover independent parameter.

The maximum transmission power of the frequency band of UE side is the newly-increased parameter of present embodiment, might be the network side configuration, and then network side need improve accordingly, referring to the following examples.

Referring to Figure 10, the method flow of present embodiment transmission of configuration information is as follows:

Step 1001: network side is determined the maximum transmission power of each frequency band.

Step 1002: network side sends to UE by high-level signaling or PDCCH signaling with the maximum transmission power of each frequency band.

In addition, network side can also reduce proportionality coefficient with the power of each frequency band by high-level signaling or PDCCH signaling and sends to UE.

Understood the realization of uplink power control by above description, this process mainly realizes that by UE network equipment also has corresponding improvement, internal structure and the function of these two equipment is introduced below then.

Referring to Figure 11, UE comprises in the present embodiment: power determination module 1101 and control module 1102

Power determination module 1101 is used for determining the transmitting power of the up channel on each carrier wave based on the maximum transmission power of each carrier wave and the power contorl parameters of this carrier wave correspondence.

Control module 1102 is used at each frequency band, judge whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band, if do not surpass, the transmission power level of the up channel that calculates on each carrier wave is remained unchanged; If surpass, maximum transmission power based on frequency band carries out the power reduction to the uplink channel transmission power on the carrier wave in this frequency band, satisfying the maximum transmission power that transmitting power sum that power reduces the up channel on the carrier wave that is in after the operation in the identical frequency band is no more than described frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows.

Control module 1102 judges whether the transmitting power sum of the up channel on the interior carrier wave of all frequency bands surpasses the maximum transmission power that described UE allows.When surpassing the maximum transmission power of described UE permission, the maximum transmission power that control module 1102 allows based on described UE reduces the maximum transmission power of each frequency band, reduce the maximum transmission power that the maximum transmission power sum of operating all frequency bands of back is no more than described UE permission to satisfy power, further after power reduces operation, control module 1102 is for each frequency band, based on the maximum transmission power of this frequency band after the power reduction operation, judge whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band; When not surpassing the maximum transmission power of described UE permission, control module 1102 judges for each frequency band whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band.

Perhaps, control module 1102 judges whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band, and record surpass frequency band maximum transmission power first kind frequency band and not above the second class frequency band of the maximum transmission power of frequency band, whether the maximum transmission power sum of judging each frequency band in total transmitting power of each frequency band in the second class frequency band and the first kind frequency band surpasses the maximum transmission power that described UE allows, and according to judged result uplink channel transmission power is carried out power and reduce, be no more than the maximum transmission power of described frequency band with the transmitting power sum that satisfies the up channel on the carrier wave that is in after the power reduction is operated in the identical frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows, wherein, total transmitting power of each frequency band is the transmitting power sum of each up channel on the carrier wave in this frequency band in the described second class frequency band.

When surpassing the maximum transmission power of described UE permission, the maximum transmission power that control module 1102 allows based on described UE reduces the maximum transmission power of each frequency band, reduce the maximum transmission power that the maximum transmission power sum of operating each frequency band of back is no more than described UE permission to satisfy power, further after power reduces operation, described control module 1102 is for each frequency band, reduce the maximum transmission power of operating each frequency band of back based on power, judge whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band.

When not surpassing the maximum transmission power of described UE permission, control module 1102 judges for each frequency band whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band.

When surpassing the maximum transmission power of described UE permission, the maximum transmission power that control module 1102 allows based on described UE reduces total transmitting power of each frequency band in the maximum transmission power of each frequency band in the first kind frequency band and the second class frequency band, be no more than the maximum transmission power of described UE permission with total transmitting power sum of each frequency band in the maximum transmission power of each frequency band in the first kind frequency band after satisfying power and reducing and the second class frequency band, further after power reduces operation, described control module 1102 is for each frequency band, reduce the maximum transmission power of operating each frequency band of back based on power, judge whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band.

When not surpassing the maximum transmission power of described UE permission, control module 1102 judges for each frequency band whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band.

Concrete, the maximum transmission power that control module 1102 allows based on described UE carries out equal proportion to the maximum transmission power of each frequency band and reduces; Perhaps, the maximum transmission power that allows based on described UE reduces proportionality coefficient according to the power of each frequency band the maximum transmission power of each frequency band is reduced, wherein, it is incomplete same that the power of each frequency band reduces proportionality coefficient, and the power of each frequency band reduces proportionality coefficient and is not less than 0 and be not more than 1.

Wherein, it is that described UE and network side are made an appointment that the power of described each frequency band reduces proportionality coefficient, perhaps for network side disposes to described UE by high-level signaling or PDCCH signaling, wherein said high-level signaling comprises Radio Resource control (RRC) signaling, medium access control (MAC) signaling.

Preferable, control module 1102 preferentially reduces the transmitting power of the minimum up channel of priority on the carrier wave in this frequency band based on the maximum transmission power of frequency band; The a plurality of up channels that have equal priority on the carrier wave in the identical frequency band are reduced transmitting power according to same ratio, be no more than the maximum transmission power of described frequency band with the transmitting power sum that is in the up channel on the carrier wave in the identical frequency band after satisfying power and reducing.

Wherein, the priority of each up channel is priority＞the do not carry priority of the PUSCH of UCI of PUSCH of priority＞carrying UCI of priority＞PRACH of PUCCH on the carrier wave in the identical frequency band, perhaps, the priority of the PUSCH of the priority of priority＞PUCCH of PRACH＞carrying UCI＞the do not carry priority of the PUSCH of UCI.

Wherein, the maximum transmission power of each frequency band is that described UE and network side are made an appointment, or disposing to UE by network side by high-level signaling or PDCCH signaling, wherein said high-level signaling comprises Radio Resource control (RRC) signaling, medium access control (MAC) signaling.

Referring to Figure 12, network equipment comprises in the present embodiment: control module 1201 and interface module 1202.

Control module 1201 is used for determining the maximum transmission power of each frequency band.

Interface module 1202 is used for by high-level signaling or PDCCH signaling the maximum transmission power of each frequency band being sent to UE.Interface module 1202 also is used for by high-level signaling or PDCCH signaling the power of each frequency band being reduced proportionality coefficient and sends to UE.

Disposed the maximum transmission power that each band (frequency band) allows for UE in advance in the embodiment of the invention, UE judges whether that according to the maximum transmission power of frequency band needs adjust the transmitting power of each up channel on the carrier wave in the identical frequency band, if desired, then operate accordingly, satisfying the maximum transmission power that transmitting power sum that power reduces the up channel on the carrier wave that is in after the operation in the identical frequency band is no more than described frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows.Realized the power control at frequency band.Wherein, the maximum transmission power of each frequency band that disposes among the UE is disposed to UE by base station high-level signaling (as RRC (Radio Resource control) signaling or MAC (medium access control) signaling) or PDCCH signaling; Perhaps by making an appointment between UE and the base station, for example the maximum transmission power of predetermined each frequency band is divided the maximum transmission power that UE allows equally, does not then need extra signaling.The maximum transmission power that embodiment of the invention midband allows can be disposed by network side, but the maximum transmission power of each frequency band permission of flexible configuration like this; Perhaps, the maximum transmission power that frequency band allows can not need network side to send configuration signal by UE and network side agreement like this, has saved signal resource.In addition, the maximum transmission power that the maximum transmission power that frequency band allows can be based on the UE permission disposes, that is to say that the maximum transmission power sum that each frequency band allows is no more than the maximum transmission power that UE allows, UE only judges that the maximum transmission power that the transmitting power sum that is in the up channel on the interior carrier wave of identical frequency band is no more than described frequency band gets final product like this.Perhaps, the maximum transmission power that each frequency band allows is separate configurations, and then UE needs also to judge whether the maximum transmission power sum that each frequency band allows surpasses the maximum transmission power that UE allows.Carrying out that maximum transmission power that frequency band allows reduces and during the reduction of the up channel power of carrier wave, can equal proportion reducing, perhaps carry out non-equal proportion reduction according to weighting coefficient values.And can reduce operation to the power that each up channel carries out in various degree according to the priority of up channel.The embodiment of the invention provides multiple implementation, is applicable to plurality of application scenes.

Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software embodiment or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form of the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code.

The present invention is that reference is described according to flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.

These computer program instructions also can be loaded on computer or other programmable data processing device, make and carry out the sequence of operations step producing computer implemented processing at computer or other programmable devices, thereby be provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction that computer or other programmable devices are carried out.

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

Claims (24)

1. the method for a uplink power control is characterized in that, may further comprise the steps:

User equipment (UE) is determined the transmitting power of the up channel on each carrier wave based on the maximum transmission power of each carrier wave and the power contorl parameters of this carrier wave correspondence;

At each frequency band, described UE judges whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band;

If do not surpass, described UE remains unchanged the transmission power level of the up channel that calculates on each carrier wave;

If surpass, described UE carries out the power reduction based on the maximum transmission power of frequency band to the uplink channel transmission power on the carrier wave in this frequency band, satisfying the maximum transmission power that transmitting power sum that power reduces the up channel on the carrier wave that is in after the operation in the identical frequency band is no more than described frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows.

2. the method for claim 1 is characterized in that, described UE judges that whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band, specifically comprises step:

Described UE judges whether the transmitting power sum of the up channel on the interior carrier wave of all frequency bands surpasses the maximum transmission power that described UE allows;

When surpassing the maximum transmission power of described UE permission, the maximum transmission power that described UE allows based on described UE reduces the maximum transmission power of each frequency band, reduce the maximum transmission power that the maximum transmission power sum of operating all frequency bands of back is no more than described UE permission to satisfy power, further after power reduces operation, described UE is for each frequency band, based on the maximum transmission power of this frequency band after the power reduction operation, judge whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band;

When not surpassing the maximum transmission power of described UE permission, described UE judges for each frequency band whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band.

3. the method for claim 1 is characterized in that, described UE judges that whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band, specifically comprises:

Described UE judges whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band, and record surpass frequency band maximum transmission power first kind frequency band and not above the second class frequency band of the maximum transmission power of frequency band, whether the maximum transmission power sum of judging each frequency band in total transmitting power of each frequency band in the second class frequency band and the first kind frequency band surpasses the maximum transmission power that described UE allows, and according to judged result uplink channel transmission power is carried out power and reduce, be no more than the maximum transmission power of described frequency band with the transmitting power sum that satisfies the up channel on the carrier wave that is in after the power reduction is operated in the identical frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows, wherein, total transmitting power of each frequency band is the transmitting power sum of each up channel on the carrier wave in this frequency band in the described second class frequency band.

4. method as claimed in claim 3 is characterized in that, described UE carries out power according to judged result to uplink channel transmission power and reduces, and specifically comprises:

When surpassing the maximum transmission power of described UE permission, the maximum transmission power that described UE allows based on described UE reduces the maximum transmission power of each frequency band, reduce the maximum transmission power that the maximum transmission power sum of operating each frequency band of back is no more than described UE permission to satisfy power, further after power reduces operation, described UE is for each frequency band, based on the maximum transmission power of this frequency band after the power reduction operation, judge whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band;

When not surpassing the maximum transmission power of described UE permission, described UE judges for each frequency band whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band.

5. method as claimed in claim 3 is characterized in that, described UE carries out power according to judged result to uplink channel transmission power and reduces, and specifically comprises:

When surpassing the maximum transmission power of described UE permission, the maximum transmission power that described UE allows based on described UE reduces total transmitting power of each frequency band in the maximum transmission power of each frequency band in the first kind frequency band and the second class frequency band, be no more than the maximum transmission power of described UE permission with total transmitting power sum of each frequency band in the maximum transmission power of each frequency band in the first kind frequency band after satisfying power and reducing and the second class frequency band, further after power reduces operation, described UE is to each frequency band, based on the maximum transmission power of this frequency band after the power reduction operation, judge whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band;

When not surpassing the maximum transmission power of described UE permission, described UE judges for each frequency band whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band.

6. as arbitrary described method among the claim 2-5, it is characterized in that the maximum transmission power that described UE allows based on described UE comprises the step that the maximum transmission power of each frequency band reduces:

The maximum transmission power that described UE allows based on described UE carries out equal proportion to the maximum transmission power of each frequency band and reduces; Perhaps

The maximum transmission power that described UE allows based on described UE, reducing proportionality coefficient according to the power of each frequency band reduces the maximum transmission power of each frequency band, wherein, it is incomplete same that the power of each frequency band reduces proportionality coefficient, and the power of each frequency band reduces proportionality coefficient and is not less than 0 and be not more than 1.

7. method as claimed in claim 6, it is characterized in that, it is that described UE and network side are made an appointment that the power of described each frequency band reduces proportionality coefficient, perhaps for network side disposes to described UE by high-level signaling or PDCCH signaling, wherein said high-level signaling comprises radio resource control RRC signaling, media access control MAC signaling.

8. as arbitrary described method among the claim 1-5, it is characterized in that described UE carries out under powered step based on the maximum transmission power of frequency band to the uplink channel transmission power on the carrier wave in this frequency band and comprises:

Described UE preferentially reduces the transmitting power of the minimum up channel of priority on the carrier wave in this frequency band based on the maximum transmission power of frequency band;

The a plurality of up channels that have equal priority on the carrier wave in the identical frequency band of UE reduce transmitting power according to same ratio, are no more than the maximum transmission power of described frequency band with the transmitting power sum that is in the up channel on the carrier wave in the identical frequency band after satisfying power and reducing.

9. method as claimed in claim 2, it is characterized in that, the priority of each up channel is the priority of PUCCH on the carrier wave in the identical frequency band〉priority of PRACH〉priority of PUSCH of carrying UCI〉priority of not carrying the PUSCH of UCI, perhaps, the priority of PRACH〉priority of PUCCH〉priority of PUSCH of carrying UCI〉priority of not carrying the PUSCH of UCI.

10. as arbitrary described method among the claim 1-5, it is characterized in that, the maximum transmission power of each frequency band is that described UE and network side are made an appointment, or disposing to UE by network side by high-level signaling or PDCCH signaling, wherein said high-level signaling comprises radio resource control RRC signaling, media access control MAC signaling.

11. the method for a transmission of configuration information is characterized in that, may further comprise the steps:

Network side sends to UE by high-level signaling or PDCCH signaling with the maximum transmission power of each frequency band, so that described UE based on the maximum transmission power of each carrier wave and the power contorl parameters of this carrier wave correspondence, determines the transmitting power of the up channel on each carrier wave; At each frequency band, judge whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band; If do not surpass, the transmission power level of the up channel that calculates on each carrier wave is remained unchanged; If surpass, maximum transmission power based on frequency band carries out the power reduction to the uplink channel transmission power on the carrier wave in this frequency band, satisfying the maximum transmission power that transmitting power sum that power reduces the up channel on the carrier wave that is in after the operation in the identical frequency band is no more than described frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows.

12. method as claimed in claim 11 is characterized in that, also comprises:

Network side reduces proportionality coefficient by high-level signaling or PDCCH signaling with the power of each frequency band and sends to UE.

13. a user equipment (UE) is characterized in that, comprising:

The power determination module is used for determining the transmitting power of the up channel on each carrier wave based on the maximum transmission power of each carrier wave and the power contorl parameters of this carrier wave correspondence;

Control module, be used at each frequency band, judge whether the transmitting power sum of each up channel on the carrier wave be in the identical frequency band surpasses the maximum transmission power of this frequency band, if do not surpass, the transmission power level of the up channel that calculates on each carrier wave is remained unchanged; If surpass, maximum transmission power based on frequency band carries out the power reduction to the uplink channel transmission power on the carrier wave in this frequency band, satisfying the maximum transmission power that transmitting power sum that power reduces the up channel on the carrier wave that is in after the operation in the identical frequency band is no more than described frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows.

14. UE as claimed in claim 13 is characterized in that, described control module judges whether the transmitting power sum of the up channel on the interior carrier wave of all frequency bands surpasses the maximum transmission power that described UE allows;

When surpassing the maximum transmission power of described UE permission, the maximum transmission power that described control module allows based on described UE reduces the maximum transmission power of each frequency band, reduce the maximum transmission power that the maximum transmission power sum of operating all frequency bands of back is no more than described UE permission to satisfy power, further after power reduces operation, described control module is for each frequency band, based on the maximum transmission power of this frequency band after the power reduction operation, judge whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band;

When not surpassing the maximum transmission power of described UE permission, described control module judges for each frequency band whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band.

15. UE as claimed in claim 14, it is characterized in that, described control module judges whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band, and record surpass frequency band maximum transmission power first kind frequency band and not above the second class frequency band of the maximum transmission power of frequency band, whether the maximum transmission power sum of judging each frequency band in total transmitting power of each frequency band in the second class frequency band and the first kind frequency band surpasses the maximum transmission power that described UE allows, and according to judged result uplink channel transmission power is carried out power and reduce, be no more than the maximum transmission power of described frequency band with the transmitting power sum that satisfies the up channel on the carrier wave that is in after the power reduction is operated in the identical frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows, wherein, total transmitting power of each frequency band is the transmitting power sum of each up channel on the carrier wave in this frequency band in the described second class frequency band.

16. UE as claimed in claim 15, it is characterized in that, when surpassing the maximum transmission power of described UE permission, the maximum transmission power that described control module allows based on described UE reduces the maximum transmission power of each frequency band, reduce the maximum transmission power that the maximum transmission power sum of operating each frequency band of back is no more than described UE permission to satisfy power, further after power reduces operation, described control module is for each frequency band, reduce the maximum transmission power of operating each frequency band of back based on power, judge whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band;

When not surpassing the maximum transmission power of described UE permission, described control module judges for each frequency band whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band.

17. UE as claimed in claim 15, it is characterized in that, when surpassing the maximum transmission power of described UE permission, the maximum transmission power that control module allows based on described UE reduces total transmitting power of each frequency band in the maximum transmission power of each frequency band in the first kind frequency band and the second class frequency band, be no more than the maximum transmission power of described UE permission with total transmitting power sum of each frequency band in the maximum transmission power of each frequency band in the first kind frequency band after satisfying power and reducing and the second class frequency band, further after power reduces operation, described control module is for each frequency band, reduce the maximum transmission power of operating each frequency band of back based on power, judge whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band;

When not surpassing the maximum transmission power of described UE permission, described control module judges for each frequency band whether the transmitting power sum of each up channel on the carrier wave that is in this frequency band surpasses the maximum transmission power of this frequency band.

18., it is characterized in that the maximum transmission power that control module allows based on described UE carries out equal proportion to the maximum transmission power of each frequency band and reduces as arbitrary described UE among the claim 14-17; Perhaps, the maximum transmission power that allows based on described UE reduces proportionality coefficient according to the power of each frequency band the maximum transmission power of each frequency band is reduced, wherein, it is incomplete same that the power of each frequency band reduces proportionality coefficient, and the power of each frequency band reduces proportionality coefficient and is not less than 0 and be not more than 1.

19. UE as claimed in claim 18, it is characterized in that, it is that described UE and network side are made an appointment that the power of described each frequency band reduces proportionality coefficient, perhaps for network side disposes to described UE by high-level signaling or PDCCH signaling, wherein said high-level signaling comprises radio resource control RRC signaling, media access control MAC signaling.

20., it is characterized in that control module preferentially reduces the transmitting power of the minimum up channel of priority on the carrier wave in this frequency band based on the maximum transmission power of frequency band as arbitrary described UE among the claim 13-17; The a plurality of up channels that have equal priority on the carrier wave in the identical frequency band are reduced transmitting power according to same ratio, be no more than the maximum transmission power of described frequency band with the transmitting power sum that is in the up channel on the carrier wave in the identical frequency band after satisfying power and reducing.

21. UE as claimed in claim 14, it is characterized in that, the priority of each up channel is the priority of PUCCH on the carrier wave in the identical frequency band〉priority of PRACH〉priority of PUSCH of carrying UCI〉priority of not carrying the PUSCH of UCI, perhaps, the priority of PRACH〉priority of PUCCH〉priority of PUSCH of carrying UCI〉priority of not carrying the PUSCH of UCI.

22. as arbitrary described UE among the claim 13-17, it is characterized in that, the maximum transmission power of each frequency band is that described UE and network side are made an appointment, or disposing to UE by network side by high-level signaling or PDCCH signaling, wherein said high-level signaling comprises radio resource control RRC signaling, media access control MAC signaling.

23. a network equipment is characterized in that, comprising:

Control module is for the maximum transmission power of determining each frequency band;

Interface module, be used for by high-level signaling or PDCCH signaling the maximum transmission power of each frequency band being sent to UE, so that described UE based on the maximum transmission power of each carrier wave and the power contorl parameters of this carrier wave correspondence, determines the transmitting power of the up channel on each carrier wave; At each frequency band, judge whether the transmitting power sum of each up channel on the carrier wave that is in the identical frequency band surpasses the maximum transmission power of this frequency band; If do not surpass, the transmission power level of the up channel that calculates on each carrier wave is remained unchanged; If surpass, maximum transmission power based on frequency band carries out the power reduction to the uplink channel transmission power on the carrier wave in this frequency band, satisfying the maximum transmission power that transmitting power sum that power reduces the up channel on the carrier wave that is in after the operation in the identical frequency band is no more than described frequency band, and the transmitting power sum that power reduces the up channel on the carrier wave that is in all frequency bands after the operation is no more than the maximum transmission power that described UE allows.

24. network equipment as claimed in claim 23 is characterized in that, interface module also is used for by high-level signaling or PDCCH signaling the power of each frequency band being reduced proportionality coefficient and sends to UE.

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