CN101404527A - Power-control parameter acquirement method and power control method - Google Patents

Abstract

The invention discloses a method for obtaining power control parameters. The method comprises: when the data types carried by a physical uplink sharing channel on a sub-frame i is judged to simultaneously contain uplink sharing channel data and uplink control information by a terminal, the terminal obtains the transmission format excursion parameter DeltaTF(i) of the sub-frame according to the transmission block size TBS obtained in a corresponding physical downlink control channel when primarily transmitting the uplink sharing channel data and a bandwidth MPUSCH for transmitting the uplink sharing channel; wherein, i is a nonnegative integer. The technical scheme of the invention solves the problem of system performance descending caused by the mismatching between the emission power of the PUSCH and the uplink control information coding performance on the PUSCH and ensures the transmission performance of the uplink control information, thereby ensuring the integral performance of the system.

Description

The method of a kind of acquisition methods of power control parameters and power control

Technical field

The present invention relates to the communications field, in particular to a kind of acquisition methods of power control parameters and utilize it to carry out the method for power control.

Background technology

Power control in the Interference Control technology is to guarantee that data in one of wireless environment key technology reliable, effectively transmission, are important indicators weighing mobile communication service quality.

Uplink power control is the operating process that an open loop power control combines with closed-loop power control, closed-loop power control is provided with around open loop power control.The main cause that open loop power control combines with closed-loop power control is that both combinations can reduce overhead for pure closed-loop power control, has reduced the sensitiveness of pure closed power control to channel variation simultaneously.

Reasonably in conjunction with the uplink power control of technology such as interference randomization, Interference Cancellation, interference coordination, more help reducing the presence of intercell interference degree, improve the particularly throughput of edge cell of sub-district, alleviated the problem of inter-cell interference that asynchronous orthogonality problem of bringing in minizone and channeling bring.

At LTE (Long Term Evolution, Long Term Evolution) in the system, uplink physical channel mainly contains PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel), PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) etc. channel is formed, PUCCH is used for transmitting uplink control information, wherein ascending control information comprises the ACK (Acknowledge of up feedback, correctly reply)/NACK (Non-Acknowledge, wrong responses), CQI (Channel Quality Indicator, the channel quality indication), RI (Rank Indicator, rank indication information), PMI (PrecodingMatrix Indicator, pre-coding matrix indication) information such as, PUSCH can only transmit Uplink Shared Channel (UL-SCH, Uplink Shared channel) data, also can a transmitting uplink control information, perhaps, transmit Uplink Shared Channel data and ascending control information simultaneously.

All terminals in the sub-district (UE, User Equipment), the transmitting power to its Physical Uplink Shared Channel in each subframe all will be carried out a power setting.In the adjustment process of uplink closed loop, specific to a certain subframe i, the transmitting power of its Physical Uplink Shared Channel that formula is set is as follows:

P _PUSCH(i)＝min{P _MAX，10log ₁₀(M _PUSCH(i))+P _{O_PUSCH}(j)+α·PL+Δ _TF(i)+f(i)}[dBm]

Wherein, Δ _TF(i) be called the transformat offset parameter, work as K _S=1.25 o'clock, ${\mathrm{\Δ}}_{\mathrm{TF}}\left(i\right)=10\mathrm{lo}{g}_{10}(2^{\mathrm{MPR}\left(i\right)\·K_S}-1),$ Work as K _S=0 o'clock, Δ _TF(i)=0, K _SBe the total parameter in a sub-district, by RRC (Radio Resource Control, the Radio Resource control) preparation of high level; MPR (i)=TBS (i)/N _RE(i), TBS (i) expression subframe i goes up transmission block size, N _RE(i) expression subframe i goes up the quantity of Resource Unit, $N_{\mathrm{RE}}\left(i\right)=M_{\mathrm{PUSCH}}\left(i\right)\·N_{\mathrm{sc}}^{\mathrm{RB}}\·N_{\mathrm{symb}}^{\mathrm{PUSCH}},$ N _Symb ^PUSCHRepresent to be used to transmit in the subframe SC-FDMA symbol quantity of PUSCH, N _Sc ^RBRepresent to comprise in the Resource Block quantity of subcarrier (Resource Unit), be used to represent the size of a Resource Block on the frequency domain, M _PUSCH(i) expression subframe i goes up the bandwidth as transmission PUSCH, and just subframe i goes up the Resource Block quantity as transmission PUSCH.

P _MAXThe expression upper limit of emission power, P _{O_PUSCH}Expression target reference power, α represents the path loss modifying factor, PL represents path loss, f (i) expression power control correction function.

At present, when Uplink Shared Channel data and ascending control information transmitted on PUSCH simultaneously, the symbol quantity behind the ascending control information coding was definite by the transmission block size and the bandwidth information such as (the Resource Block quantity of distribution) of the described up general service data of first transmission;

When Uplink Shared Channel data that retransmit and ascending control information while transmit on the PUSCH of subframe i, symbol quantity behind the ascending control information coding is by the transmission block size of the described Uplink Shared Channel data of first transmission and bandwidth information such as (the Resource Block quantity of distribution) definite, and by top power control formula as can be known, the transmitting power of PUSCH is to be determined by the bandwidth of the PUSCH of the described Uplink Shared Channel data of the last transmission of subframe i, this just makes the transmitting power of PUSCH and the coding efficiency that PUSCH goes up the ascending control information of transmission not match, thereby, the transmission performance of ascending control information can not be guaranteed, and causes that the overall performance of system descends.

So, be necessary to propose a kind of new power control parameters acquisition methods, go up the ascending control information coding efficiency problem that the systematic function that caused descends that do not match with the transmitting power that solves above-mentioned PUSCH and PUSCH.

Summary of the invention

The present invention aims to provide a kind of acquisition methods of power control parameters and utilizes its method of carrying out power control, goes up the ascending control information coding efficiency problem that the systematic function that caused descends that do not match with the transmitting power that solves PUSCH and PUSCH.

In order to solve the problems of the technologies described above, the invention provides a kind of acquisition methods of power control parameters, described method comprises:

Terminal judges subframe i goes up Physical Uplink Shared Channel data carried by data type when Uplink Shared Channel data and ascending control information are arranged simultaneously, the bandwidth M of big or small TBS of the transmission block that terminal obtains from the corresponding Physical Downlink Control Channel of the described Uplink Shared Channel data of first transmission and transmitting physical Uplink Shared Channel _PUSCHObtain subframe i and go up transformat offset parameter Δ _TF(i), wherein, i is a nonnegative integer.

Further, described transformat offset parameter Δ _TF(i) be to determine by following formula:

Work as K _S=1.25 o'clock, ${\mathrm{\Δ}}_{\mathrm{TF}}\left(i\right)=10\mathrm{lo}{g}_{10}(2^{\mathrm{MPR}\·K_S}-1),$ Work as K _S=0 o'clock, Δ _TF(i)=0, wherein, K _SBe the total parameter in sub-district, MPR=TBS/N _RE, $N_{\mathrm{RE}}=M_{\mathrm{PUSCH}}\·N_{\mathrm{sc}}^{\mathrm{RB}}\·N_{\mathrm{symb}}^{\mathrm{PUSCH}},$ N _Symb ^PUSCHRepresent to be used in the subframe symbol quantity of transmitting physical Uplink Shared Channel, N _Sc ^RBRepresent to comprise in the Resource Block quantity of subcarrier.

The present invention also provides the acquisition methods of another kind of power control parameters, and described method comprises:

Terminal judges subframe i goes up Physical Uplink Shared Channel data carried by data type when having only the Uplink Shared Channel data or having only ascending control information, and terminal uses transmission block size TBS and the subframe i on the subframe i to go up the bandwidth M that transmits Physical Uplink Shared Channel _PUSCHObtain subframe i and go up transformat offset parameter Δ _TF(i), wherein, i is a nonnegative integer.

Further, described transformat offset parameter Δ _TF(i) be to determine by following formula:

Work as K _S=1.25 o'clock, ${\mathrm{\Δ}}_{\mathrm{TF}}\left(i\right)=10\mathrm{lo}{g}_{10}(2^{\mathrm{MPR}\·K_S}-1),$ Work as K _S=0 o'clock, Δ _TF(i)=0, wherein, K _SBe the total parameter in sub-district, MPR=TBS/N _RE, $N_{\mathrm{RE}}=M_{\mathrm{PUSCH}}\·N_{\mathrm{sc}}^{\mathrm{RB}}\·N_{\mathrm{symb}}^{\mathrm{PUSCH}},$ N _Symb ^PUSCHRepresent to be used in the subframe symbol quantity of transmitting physical Uplink Shared Channel, N _Sc ^RBRepresent to comprise in the Resource Block quantity of subcarrier.

The present invention also provides the acquisition methods of another kind of power control parameters, and described method comprises:

Terminal judges subframe i goes up Physical Uplink Shared Channel data carried by data type;

Go up Physical Uplink Shared Channel data carried by data type according to subframe i, corresponding mode below terminal is selected is obtained the transformat offset parameter Δ on the subframe i _TF(i):

If the data carried by data type is for having the transmission of Uplink Shared Channel data and ascending control information simultaneously, the bandwidth M of the transmission block that then obtains size TBS and transmitting physical Uplink Shared Channel on the last Physical Uplink Shared Channel of subframe i from the corresponding Physical Downlink Control Channel of the described Uplink Shared Channel data of first transmission _PUSCHObtain subframe i and go up transformat offset parameter Δ _TF(i), wherein, i is a nonnegative integer;

Otherwise, use transmission block size TBS and subframe i on the subframe i to go up the bandwidth M that transmits Physical Uplink Shared Channel _PUSCHObtain subframe i and go up transformat offset parameter Δ _TF(i), wherein, i is a nonnegative integer.

Further, described transformat offset parameter Δ _TF(i) be to determine by following formula:

Work as K _S=1.25 o'clock, ${\mathrm{\Δ}}_{\mathrm{TF}}\left(i\right)=10\mathrm{lo}{g}_{10}(2^{\mathrm{MPR}\·K_S}-1),$ Work as K _S=0 o'clock, Δ _TF(i)=0, wherein, K _SBe the total parameter in sub-district, MPR=TBS/N _RE, $N_{\mathrm{RE}}=M_{\mathrm{PUSCH}}\·N_{\mathrm{sc}}^{\mathrm{RB}}\·N_{\mathrm{symb}}^{\mathrm{PUSCH}},$ N _Symb ^PUSCHRepresent to be used in the subframe symbol quantity of transmitting physical Uplink Shared Channel, N _Sc ^RBRepresent to comprise in the Resource Block quantity of subcarrier.

The present invention also provides a kind of method that power control parameters recited above is carried out power control of using, and described method comprises that terminal is according to the transformat offset parameter Δ that obtains _TF(i) obtain the transmitting power of Physical Uplink Shared Channel.

Further, the transmitting power of described Physical Uplink Shared Channel is to be determined by following formula:

P _PUSCH(i)＝min{P _MAX，10log ₁₀(M _PUSCH(i))+P _{O_PUSCH}(j)+α·PL+Δ _TF(i)+f(i)}

P _MAXThe expression upper limit of emission power, P _{O_PUSCH}Expression target reference power, α represents the path loss modifying factor, and PL represents path loss, and f (i) expression subframe i goes up the power control correction function of Physical Uplink Shared Channel, M _PUSCH(i) expression subframe i goes up the bandwidth as transmission PUSCH.

By technique scheme of the present invention, solve the transmitting power of PUSCH and PUSCH and gone up the ascending control information coding efficiency problem that the systematic function that caused descends that do not match, guaranteed the transmission performance of ascending control information, thereby, the overall performance of system guaranteed.

Description of drawings

Fig. 1 is the flow chart of the described power control parameters of one embodiment of the invention generation method.

Embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.

Main thought of the present invention is: according to data carried by data type in the current time uplink subframe, determine transformat offset parameter Δ _TFComputational methods, and with this Δ _TFParameter is used for the power control of Physical Uplink Shared Channel.

Please refer to flow chart shown in Figure 1.

Come the present invention is illustrated with three concrete examples below.

Embodiment one

At current time, Uplink Shared Channel data and ascending control information data are transmitted in the Physical Uplink Shared Channel from UE to NodeB simultaneously.The sub-frame of uplink in this moment is designated as i, has not only carried the Uplink Shared Channel data on the subframe i, has also carried one or several ascending control informations among ACK/NACK, CQI/PMI, the RI simultaneously.Transformat offset parameter Δ _TF(i) can acquire by initial transmission transmission block size that constantly from Physical Downlink Control Channel, obtains and the bandwidth of transmitting described Physical Uplink Shared Channel, promptly by the size TBS of the transmission block on the subframe t0 and the transmission block size TBS that from the corresponding Physical Downlink Control Channel of the described Uplink Shared Channel data of first transmission, obtains and the bandwidth M of transmitting physical Uplink Shared Channel _PUSCHObtain subframe i and go up transformat offset parameter Δ _TF(i), wherein, t0 represents it is the subframe numbering of the described Uplink Shared Channel data of first transmission.Work as K _S=1.25 o'clock, ${\mathrm{\Δ}}_{\mathrm{TF}}\left(i\right)=10\mathrm{lo}{g}_{10}(2^{\mathrm{MPR}\·K_S}-1),$ Work as K _S=0 o'clock, Δ _TF(i)=0, wherein, K _SBe the total parameter in sub-district, MPR=TBS (t0)/N _RE(t0), $N_{\mathrm{RE}}\left(t0\right)=M_{\mathrm{PUSCH}}\left(t0\right)\·N_{\mathrm{sc}}^{\mathrm{RB}}\·N_{\mathrm{symb}}^{\mathrm{PUSCH}},$ N _Symb ^PUSCHRepresent to be used in the subframe SC-FDMA symbol quantity of transmitting physical Uplink Shared Channel, N _Sc ^RBRepresent to comprise in the Resource Block quantity of subcarrier, TBS (t0) expression subframe t0 goes up transmission block size, M _PUSCH(t0) expression subframe t0 goes up the bandwidth as transmission PUSCH, and just subframe t0 goes up the Resource Block quantity as transmission PUSCH.

When the Uplink Shared Channel data of the last Physical Uplink Shared Channel carrying of subframe i are first transmission, t0=i;

Terminal is according to the transformat offset parameter Δ that obtains _TF(i) obtain the transmitting power of Physical Uplink Shared Channel in conjunction with the transmitting power formula of following Physical Uplink Shared Channel:

P _PUSCH(i)＝min{P _MAX，10log ₁₀(M _PUSCH(i))+P _{O_PUSCH}(j)+α·PL+Δ _TF(i)+f(i)}[dBm]

P _MAXThe expression upper limit of emission power, P _{O_PUSCH}Expression target reference power, α represents the path loss modifying factor, and PL represents path loss, and f (i) expression subframe i goes up the power control correction function of Physical Uplink Shared Channel, M _PUSCH(i) expression subframe i goes up the bandwidth as transmission PUSCH.

Embodiment two

At current time, have only the Uplink Shared Channel transfer of data in the Physical Uplink Shared Channel from UE to NodeB, there are not the ascending control information data.The sub-frame of uplink in this moment is designated as i, the Uplink Shared Channel data have only been carried on the subframe i, do not have one or several ascending control informations among loading ACK/NACK, CQI/PMI, the RI, use transmission block size TBS and subframe i on the subframe i to go up the bandwidth M that transmits Physical Uplink Shared Channel _PUSCHObtain subframe i and go up transformat offset parameter Δ _TF(i).Work as K _S=1.25 o'clock, ${\mathrm{\Δ}}_{\mathrm{TF}}\left(i\right)=10\mathrm{lo}{g}_{10}(2^{\mathrm{MPR}\·K_S}-1),$ Work as K _S=0 o'clock, Δ _TF(i)=0, wherein, K _SBe the total parameter in sub-district, MPR=TBS (i)/N _RE(i), $N_{\mathrm{RE}}\left(i\right)=M_{\mathrm{PUSCH}}\left(i\right)\·N_{\mathrm{sc}}^{\mathrm{RB}}\·N_{\mathrm{symb}}^{\mathrm{PUSCH}},$ N _Symb ^PUSCHRepresent to be used in the subframe SC-FDMA symbol quantity of transmitting physical Uplink Shared Channel, N _Sc ^RBRepresent to comprise in the Resource Block quantity of subcarrier, TBS (i) expression subframe i goes up transmission block size, M _PUSCH(i) expression subframe i goes up the bandwidth as transmission PUSCH, and just subframe i goes up the Resource Block quantity as transmission PUSCH.

Terminal is according to the transformat offset parameter Δ that obtains _TF(i) obtain the transmitting power of Physical Uplink Shared Channel in conjunction with the transmitting power formula of following Physical Uplink Shared Channel:

P _PUSCH(i)＝min{P _MAX，10log ₁₀(M _PUSCH(i))+P _{O_PUSCH}(j)+α·PL+Δ _TF(i)+f(i)}[dBm]

P _MAXThe expression upper limit of emission power, P _{O_PUSCH}Expression target reference power, α represents the path loss modifying factor, and PL represents path loss, and f (i) expression subframe i goes up the power control correction function of Physical Uplink Shared Channel, M _PUSCH(i) expression subframe i goes up the bandwidth as transmission PUSCH.

Embodiment three

At current time, have only the ascending control information transfer of data in the Physical Uplink Shared Channel from UE to NodeB, there are not the Uplink Shared Channel data.The sub-frame of uplink in this moment is designated as i, has only carried one or several upload control command informations among ACK/NACK, CQI/PMI, the RI on the subframe i, does not carry the Uplink Shared Channel data.Use transmission block size TBS and subframe i on the subframe i to go up the bandwidth M that transmits Physical Uplink Shared Channel _PUSCHObtain subframe i and go up transformat offset parameter Δ _TF(i).Work as K _S=1.25 o'clock, ${\mathrm{\Δ}}_{\mathrm{TF}}\left(i\right)=10\mathrm{lo}{g}_{10}(2^{\mathrm{MPR}\·K_S}-1),$ Work as K _S=0 o'clock, Δ _TF(i)=0, wherein, K _SBe the total parameter in sub-district, MPR=TBS (i)/N _RE(i), $N_{\mathrm{RE}}\left(i\right)=M_{\mathrm{PUSCH}}\left(i\right)\·N_{\mathrm{sc}}^{\mathrm{RB}}\·N_{\mathrm{symb}}^{\mathrm{PUSCH}},$ N _Symb ^PUSCHRepresent to be used in the subframe SC-FDMA symbol quantity of transmitting physical Uplink Shared Channel, N _Sc ^RBRepresent to comprise in the Resource Block quantity of subcarrier, TBS (i) expression subframe i goes up transmission block size, M _PUSCH(i) expression subframe i goes up the bandwidth as transmission PUSCH, and just subframe i goes up the Resource Block quantity as transmission PUSCH.

Terminal is according to the transformat offset parameter Δ that obtains _TF(i) obtain the transmitting power of Physical Uplink Shared Channel in conjunction with the transmitting power formula of following Physical Uplink Shared Channel:

P _PUSCH(i)＝min{P _MAX，10log ₁₀(M _PUSCH(i))+P _{O_PUSCH}(j)+α·PL+Δ _TF(i)+f(i)}[dBm]

P _MAXThe expression upper limit of emission power, P _{O_PUSCH}Expression target reference power, α represents the path loss modifying factor, and PL represents path loss, and f (i) expression subframe i goes up the power control correction function of Physical Uplink Shared Channel, M _PUSCH(i) expression subframe i goes up the bandwidth as transmission PUSCH.

Above embodiment is because adopted new descending distribution indication signaling definition mode, go up the ascending control information coding efficiency problem that the systematic function that caused descends that do not match so overcome the transmitting power of PUSCH and PUSCH, guaranteed the transmission performance of ascending control information, thereby, guaranteed the overall performance of system.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. the acquisition methods of a power control parameters is characterized in that, described method comprises:

Terminal judges subframe i goes up Physical Uplink Shared Channel data carried by data type when Uplink Shared Channel data and ascending control information are arranged simultaneously, the bandwidth M of big or small TBS of the transmission block that terminal obtains from the corresponding Physical Downlink Control Channel of the described Uplink Shared Channel data of first transmission and transmitting physical Uplink Shared Channel _PUSCHObtain subframe i and go up transformat offset parameter Δ _TF(i), wherein, i is a nonnegative integer.

2. method according to claim 1 is characterized in that, described transformat offset parameter Δ _TF(i) be to determine by following formula:

Work as K _S=1.25 o'clock, ${\mathrm{\Δ}}_{\mathrm{TF}}\left(i\right)=10\mathrm{lo}{g}_{10}(2^{\mathrm{MPR}\·K_S}-1),$ Work as K _S=0 o'clock, Δ _TF(i)=0, wherein, K _SBe the total parameter in sub-district, MPR=TBS/N _RE, $N_{\mathrm{RE}}=M_{\mathrm{PUSCH}}\·N_{\mathrm{sc}}^{\mathrm{RB}}\·N_{\mathrm{symb}}^{\mathrm{PUSCH}},$ N _Symb ^PUSCHRepresent to be used in the subframe symbol quantity of transmitting physical Uplink Shared Channel, N _Sc ^RBRepresent to comprise in the Resource Block quantity of subcarrier.

3. the acquisition methods of a power control parameters is characterized in that, described method comprises:

Terminal judges subframe i goes up Physical Uplink Shared Channel data carried by data type when having only the Uplink Shared Channel data or having only ascending control information, and terminal uses transmission block size TBS and the subframe i on the subframe i to go up the bandwidth M that transmits Physical Uplink Shared Channel _PUSCHObtain the transformat offset parameter Δ on the subframe i _TF(i), wherein, i is a nonnegative integer.

4. method according to claim 3 is characterized in that, described transformat offset parameter Δ _TF(i) be to determine by following formula:

Work as K _S=1.25 o'clock, ${\mathrm{\Δ}}_{\mathrm{TF}}\left(i\right)=10{\log }_{10}(2^{\mathrm{MPR}\·K_S}-1),$ Work as K _S=0 o'clock, Δ _TF(i)=0, wherein, K _SBe the total parameter in sub-district, MPR=TBS/N _RE, $N_{\mathrm{RE}}=M_{\mathrm{PUSCH}}\·N_{\mathrm{sc}}^{\mathrm{RB}}\·N_{\mathrm{symb}}^{\mathrm{PUSCH}},$ N _Symb ^PUSCHRepresent to be used in the subframe symbol quantity of transmitting physical Uplink Shared Channel, N _Sc ^RBRepresent to comprise in the Resource Block quantity of subcarrier.

The acquisition methods of 5 one kinds of power control parameters is characterized in that, described method comprises:

Terminal judges subframe i goes up Physical Uplink Shared Channel data carried by data type;

Go up Physical Uplink Shared Channel data carried by data type according to subframe i, corresponding mode below terminal is selected is obtained the transformat offset parameter Δ on the subframe i _TF(i):

If the data carried by data type is for having the transmission of Uplink Shared Channel data and ascending control information simultaneously, the bandwidth M of the transmission block that then obtains size TBS and transmitting physical Uplink Shared Channel on the last Physical Uplink Shared Channel of subframe i from the corresponding Physical Downlink Control Channel of the described Uplink Shared Channel data of first transmission _PUSCHObtain the transformat offset parameter Δ of current subframe _TF(i);

Otherwise, use transmission block size TBS and subframe i on the subframe i to go up the bandwidth M that transmits Physical Uplink Shared Channel _PUSCHObtain the transformat offset parameter Δ on the subframe i _TF(i).

6. method according to claim 5 is characterized in that, described transformat offset parameter Δ _TF(i) be to determine by following formula:

Work as K _S=1.25 o'clock, ${\mathrm{\Δ}}_{\mathrm{TF}}\left(i\right)=10{\log }_{10}(2^{\mathrm{MPR}\·K_S}-1),$ Work as K _S=0 o'clock, Δ _TF(i)=0, wherein, K _SBe the total parameter in sub-district, MPR=TBS/N _RE,

$N_{\mathrm{RE}}=M_{\mathrm{PUSCH}}\·N_{\mathrm{sc}}^{\mathrm{RB}}\·N_{\mathrm{symb}}^{\mathrm{PUSCH}},$ N _Symb ^PUSCHRepresent to be used in the subframe symbol quantity of transmitting physical Uplink Shared Channel, N _Sc ^RBRepresent to comprise in the Resource Block quantity of subcarrier.

7. an application rights requires 1,3 or 5 described power control parameters to carry out the method for power control, it is characterized in that terminal is according to the transformat offset parameter Δ that obtains _TF(i) obtain the transmitting power of Physical Uplink Shared Channel.

8. method according to claim 7 is characterized in that, the transmitting power of described Physical Uplink Shared Channel is to be determined by following formula:

P _PUSCH(i)＝min{P _MAX，10log ₁₀(M _PUSCH(i))+P _{O_PUSCH}(j)+α·PL+Δ _TF(i)+f(i)}

P _MAXThe expression upper limit of emission power, P _{O_PUSCH}Expression target reference power, α represents the path loss modifying factor, and PL represents path loss, and f (i) expression subframe i goes up the power control correction function of Physical Uplink Shared Channel, M _PUSCH(i) expression subframe i goes up the bandwidth as transmission PUSCH.

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