CN104995970A

CN104995970A - Method and device for controlling uplink power

Info

Publication number: CN104995970A
Application number: CN201380002238.1A
Authority: CN
Inventors: 肖登坤; 吴彤
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-09-30
Filing date: 2013-09-30
Publication date: 2015-10-21
Also published as: WO2015042942A1

Abstract

Embodiments of the present invention provide a method and a device for controlling uplink power, which can overcome a problem in prior art that may cause PUSCH sending power after rollback to be improper and thus affect system performance. The method comprises: a UE obtaining a power rollback parameter and obtaining first PUSCH sending power and second PUSCH sending power, wherein the power rollback parameter comprises a power rollback scaling factor, or the power rollback parameter comprises a first interference value and a second interference value; if a sum of the first PUSCH sending power and the second PUSCH sending power exceeds a maximum sending power of the UE, rolling back the first PUSCH sending power and the second PUSCH sending power based on the first interference value and the second interference value, or rolling back the first PUSCH sending power and the second PUSCH sending power based on the power rollback scaling factor.The present invention relates to the field of communications.

Description

METHOD AND DEVICE FOR CONTROLLING UPLINK POWER

Ascending power control method and equipment technical field

The present invention relates to the communications field, more particularly to ascending power control method and equipment.Background technology

With the development of mobile communication technology, following GSM will provide higher data rate transmission and wider array of service coverage." carrier aggregation " is more and more extensive in moving communicating field application as a kind of common transmission means.The thought of " carrier aggregation " is：User terminal of the node to some support carrier aggregation（User Equipment, UE) configure and multiple member carriers are provided（Component Carrier, CC) uplink and downlink communication is carried out, so as to support the transmission of more high data rate.

In existing Long Term Evolution（Long Term Evolution, LTE) in PHY, under carrier aggregation scene, uplink power control mainly considers UE in each member carrier (abbreviation carrier wave）On Physical Uplink Shared Channel（Physical Uplink Share Channel, PUSCH) transmit power, when PUSCH transmit power summations of the UE on PCC and SCC, when having exceeded UE maximum transmit power, UE will carry out back-off, and the method that existing PUSCH transmit powers retract is：

∑ ·) · (MAX (- 4UCCH () (1) or

Σ ^W(i) · uSCH'c (0≤ (^CMA (0 - ^PUCCH (0 - ^PUSCH,₇' () (^) wherein, in formula（1) and likes（2) in, MAXW represents maximum transmit powers of the UE in subframe, and this is determined by the specified maximum transmit power of the UE.^pPu is UE is used for Physical Uplink Control Channel in the ' ' subframe（ Physical Uplink Control

Channel, PUCCH) transmit power,^PpuscH, ') and it is PUSCH transmit powers of the UE in the ' ' subframe, c carrier waves； ^_Η, (0 represents UE in subframe to, on the ' carrier wave PUSCH transmit powers；It is power back-off factors of the UE in the ' ' subframe, this is by the UE according to A_MAX(0, uccn ii) and ^_Η,_ε(ο determines that Λ represents linear value.However, the PUSCH transmit powers that above-mentioned prior art is likely to result in after retracting are improper, so as to influence systematic function.The content of the invention

The embodiment of the present invention provides ascending power control method and equipment, to overcome the PUSCH transmit powers being likely to result in the prior art after retracting improper, so that the problem of influenceing systematic function.

First aspect includes there is provided a kind of ascending power control method, methods described：User terminal UE obtains power back-off parameters；

Obtain the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, first communication node is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE, the power back-off parameters include back-off scale factor, wherein, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first power back-off factors are the power back-off factors that the UE is retracted to the first PUSCH transmit powers, second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUSCH transmit powers, or, the power back-off parameters include the first interference value and the second interference value, first interference value is that the UE is sent to the interference that the Physical Resource Block of first communication node is subject to, second interference value is that the UE is sent to the interference that the Physical Resource Block of second communication node is subject to；And

If the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to first interference value and second interference value, or, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to the back-off scale factor. In first aspect in the first possible implementation, with reference in a first aspect, described retract according to the back-off scale factor to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, including：

First power back-off factors and second power back-off factors are obtained according to the back-off scale factor respectively；And

- PUSCH the transmit powers are retracted according to first power back-off factors, and, the 2nd PUSCH transmit powers are retracted according to second power back-off factors.

In second of possible implementation of first aspect, the first possible implementation with reference to first aspect is described to obtain first power back-off factors and second power back-off factors respectively according to the back-off scale factor, including

According to the back-off scale factor and equation below, first power back-off factors and second power back-off factors are obtained respectively：^w

Wherein,^WI represents first power back-off factors, ^ represents second power back-off factors, for the back-off scale factor, represent that the large scale of the UE to first communication node declines, represent that the large scale of the UE to second communication node declines, also, it is the integer more than 1.

In first aspect in the third possible implementation, the first possible second of possible implementation of implementation or first aspect with reference to first aspect, it is described that first power back-off factors and second power back-off factors are obtained according to the back-off scale factor respectively, including：

According to the back-off scale factor and equation below, first power back-off factors and second power back-off factors are obtained respectively：

^ K ^ ^

^-^PUSCH.l + ^j ^Wk PUSCH ,k + PUCCH = ^MA

Wherein, ^MAX represents the maximum transmit power of the UE；^ " ^,¹Represent described - PUSCH transmit powers；, k shows the 2nd PUSCH transmit powers；P H represent the Physical Uplink Control Channel PUCCH transmit powers of the UE；2 k≤K, K be first communication node and second communication node number and, also, K_≥2。

In the 4th kind of possible implementation of first aspect, with reference in a first aspect, described retract according to first interference value and second interference value to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, including：

First power back-off factors and second power back-off factors are obtained according to first interference value and second interference value respectively；

In the 5th kind of possible implementation of first aspect, with reference to the 4th kind of possible implementation of first aspect, it is described that first power back-off factors and second power back-off factors are obtained according to first interference value and second interference value respectively, including：

According to first interference value, second interference value and equation below, first power back-off factors and second power back-off factors are obtained respectively：

Wherein, A={ 1 ..., K }, be first communication node and second communication node number and, also, κ_≥ι, the number of second communication node is -1;When=1, ^ represents first power back-off factors, represents first interference value；Represent that the large scale of the UE to first communication node declines；AMAX represents the maximum transmit power of the UE；Represent the first PUSCH transmit powers；When ≠ 1,^wCorresponding second power back-off factors of kth-l second communication nodes are represented, corresponding second interference value of the second communication node is represented；Represent that the large scale of the UE to kth-individual second communication node declines；AMAX represents the maximum transmit power of the UE；Represent the corresponding 2nd PUSCH transmit powers of second communication node of kth-l. In the 6th kind of possible implementation of first aspect, with reference to the 5th kind of possible implementation of first aspect to first aspect, the auxiliary serving cell includes small cell.

In the 7th kind of possible implementation of first aspect, with reference to the 6th kind of possible implementation of first aspect to first aspect, the acquisition power back-off parameters include：

Receive the first Power Control signaling that first communication node is sent, wherein, the first Power Control signaling carries first interference value, and, receive the second Power Control signaling that second communication node is sent, wherein, the second Power Control signaling carries second interference value；Or,

The first Power Control signaling that first communication node is sent is received, wherein, the first Power Control signaling carries the back-off scale factor；Or

The second Power Control signaling that second communication node is sent is received, wherein, the second Power Control signaling carries the back-off scale factor.

Second aspect includes there is provided a kind of ascending power control method, methods described：First communication node obtains power back-off parameters, wherein,

The power back-off parameters include back-off scale factor, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first power back-off factors are the power back-off factors that user terminal UE is retracted to the first Physical Uplink Shared Channel PUSCH transmit powers, and second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUSCH transmit powers；

Or,

The power back-off parameters include the first interference value, and first interference value is that the UE is sent to the interference that the Physical Resource Block of first communication node is subject to；And

First interference value or the back-off scale factor are sent to the UE, wherein,

If first interference value is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the U E retract according to first interference value and the second interference value to the-PUSCH transmit powers and the 2nd PUSCH transmit powers Wherein, second interference value is that the UE that the UE is obtained from second communication node is sent to the interference value that the Physical Resource Block of second communication node is subject to；

Or,

If the back-off scale factor is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the UE retracts according to back-off scale factor to the first PUSCH transmit powers and the 2nd PUSCH transmit powers；Wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, wherein, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；Or, first communication node is the corresponding communication node of auxiliary serving cell of the UE, and second communication node is the corresponding communication node of main serving cell of the UE.

In second aspect in the first possible implementation, with reference to second aspect, transmission first interference value or the back-off scale factor include to the UE：

Transmit power control signaling gives the UE, wherein, the Power Control signaling carries first interference value；Or,

Transmit power control signaling gives the UE, wherein, the Power Control signaling carries the back-off scale factor.

In second of possible implementation of second aspect, with reference to second aspect or second aspect the first possible implementation, the auxiliary serving cell includes cell.

A kind of third aspect, uplink power control device, described device includes acquiring unit and back-off unit；

The acquiring unit, for obtaining power back-off parameters；

The acquiring unit, it is additionally operable to obtain the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the user terminal UE on the first communication node correspondence carrier wave, and the 2nd PUSCH transmit powers are the UE on the second communication node correspondence carrier wave PUSCH transmit powers, first communication node is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE, the power back-off parameters include back-off scale factor, wherein, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first power back-off factors are the power back-off factors that the UE is retracted to the first PUSCH transmit powers, second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUSCH transmit powers, or, the power back-off parameters include the first interference value and the second interference value, first interference value is that the UE is sent to the interference that the Physical Resource Block of first communication node is subject to, second interference value is that the U E are sent to the interference that the Physical Resource Block of second communication node is subject to；

The back-off unit, if the first PUSCH transmit powers and the summation of the 2nd PUSCH transmit powers that are obtained for the acquiring unit exceed the maximum transmit power of the UE, first interference value and second interference value obtained according to the acquiring unit retracts to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, or, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to the back-off scale factor that the acquiring unit is obtained.

In the third aspect in the first possible implementation, with reference to the third aspect, the back-off unit includes acquisition module and back-off module；

The acquisition module, for obtaining first power back-off factors and second power back-off factors respectively according to the back-off scale factor；

The back-off module, first power back-off factors for being obtained according to the acquisition module retract to the first PUSCH transmit powers, and, the 2nd PUSCH transmit powers are retracted according to second power back-off factors that the acquisition module is obtained.

In second of possible implementation of the third aspect, the first possible implementation with reference to the third aspect, the acquisition module specifically for obtaining first power back-off factors and second power back-off factors respectively according to the back-off scale factor as follows：

According to the back-off scale factor and equation below, first work(is obtained respectively Rate back-off factor and second power back-off factors：^WWherein,^WI represents first power back-off factors,^WRepresent second power back-off factors, ^ is the back-off scale factor, represents that the large scale of the UE to first communication node declines, and represents that the large scale of the UE to second communication node declines, also, it is the integer more than 1.

In the third aspect in the third possible implementation, the first possible second of possible implementation of implementation or the third aspect with reference to the third aspect, the acquisition module specifically for obtaining first power back-off factors and second power back-off factors respectively according to the back-off scale factor as follows：

^W\^PPUSCH,\ + Σ ^Wi PC/SO/,i + ^Ρί PUCCH ¹ CMAX

k=2

CMAX represents the maximum transmit power of the UE； ^^raCW represents described

- PUSCH transmit powers；, k shows the 2nd PUSCH transmit powers；Represent the Physical Uplink Control Channel PUCCH transmit powers of the UE；K≤K, K be first communication node and second communication node number and, also, K_≥2。

In the 4th kind of possible implementation of the third aspect, with reference to the third aspect, the back-off unit includes acquisition module and back-off module；

The acquisition module, for obtaining first power back-off factors and second power back-off factors respectively according to first interference value and second interference value；

The back-off module, first power back-off factors for being obtained according to the acquisition module retract to the first PUSCH transmit powers, and, the 2nd PUSCH transmit powers are retracted according to second power back-off factors that the acquisition module is obtained. In the 5th kind of possible implementation of the third aspect, with reference to the 4th kind of possible implementation of the third aspect, the acquisition module specifically for obtaining first power back-off factors and second power back-off factors respectively according to first interference value and second interference value as follows：

,, I¹ k

wk =

Sk

Wherein, A={ 1 ..., K }, be first communication node and second communication node number and, also, Κ_≥2, the number of second communication node is -1;When=1, ^ represents first power back-off factors, represents first interference value；Represent that the large scale of the UE to first communication node declines；AMAX represents the maximum transmit power of the UE；^ represents the first PUS CH transmit powers；When ≠ 1, ^ represents corresponding second power back-off factors of kth-l second communication nodes, represents corresponding second interference value of the second communication node；Represent that the large scale of the UE to kth-individual second communication node declines；AMAX represents the maximum transmit power of the UE；^ represents the corresponding 2nd PUS CH transmit powers of second communication node of kth-l.

In the 6th kind of possible implementation of the third aspect, with reference to the 5th kind of possible implementation of the third aspect to the third aspect, the auxiliary serving cell includes small cell.

In the 7th kind of possible implementation of the third aspect, with reference to the 6th kind of possible implementation of the third aspect to the third aspect, the acquiring unit specifically for obtaining power back-off parameters as follows：

The first Power Control signaling that first communication node is sent is received, wherein, the first Power Control signaling carries the back-off scale factor；Or The second Power Control signaling that second communication node is sent is received, wherein, the second Power Control signaling carries the back-off scale factor.

Fourth aspect includes acquiring unit and transmitting element there is provided a kind of uplink power control device, described device；

The acquiring unit, for obtaining power back-off parameters, wherein,

Or,

The power back-off parameters include the first interference value, and first interference value is that the UE is sent to the interference that the Physical Resource Block of the first communication node is subject to；The transmitting element, for sending first interference value or the back-off scale factor of the acquiring unit acquisition to the UE, wherein, if first interference value is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the UE retracts according to first interference value and the second interference value to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, second interference value is that the UE that the UE is obtained from second communication node is sent to the interference value that the Physical Resource Block of second communication node is subject to；Or, if the back-off scale factor is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the UE retracts according to back-off scale factor to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, wherein, first communication node is the corresponding communication node of main serving cell of the UE, second communication node is corresponding logical for the auxiliary serving cell of the UE Believe node；Or, first communication node is the corresponding communication node of auxiliary serving cell of the UE, and second communication node is the corresponding communication node of main serving cell of the UE.

In fourth aspect in the first possible implementation, with reference to fourth aspect, the transmitting element specifically for sending first interference value or the back-off scale factor of the acquiring unit acquisition to the UE as follows:

5th aspect is there is provided a kind of user terminal UE, and the UE includes transmitter, receiver and the memory coupled with processor；

The processor, for obtaining power back-off parameters, and

Obtain the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, first communication node is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE, the power back-off parameters include back-off scale factor, wherein, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first power back-off factors are the power back-off factors that the UE is retracted to the first PUSCH transmit powers, second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUSCH transmit powers, or, the power back-off parameters include the first interference value and the second interference value, first interference value is that the UE is sent to the interference that the Physical Resource Block of first communication node is subject to, second interference value is that the UE is sent to the interference that the Physical Resource Block of second communication node is subject to；

The processor, if being additionally operable to maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to first interference value and second interference value, or, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are carried out according to the back-off scale factor Retract.

In the first possible implementation in terms of the 5th, with reference to the 5th aspect, the processor is specifically for as follows according to the back-off scale factor to described first

PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted：

In the 5th second of possible implementation of aspect, with reference to the 5th aspect the first possible implementation, the processor specifically for obtaining first power back-off factors and second power back-off factors respectively according to the back-off scale factor as follows：

According to the back-off scale factor and equation below, first power back-off factors and second power back-off factors are obtained respectively：^WWherein,^WI represents first power back-off factors, ^ represents second power back-off factors, for the back-off scale factor, gi represents that the large scale of the UE to first communication node declines, represent that the large scale of the UE to second communication node declines, also, it is the integer more than 1.

In the third possible implementation in terms of the 5th, with reference to the 5th the first possible implementation of aspect or the 5th second of possible implementation of aspect, the processor specifically for obtaining first power back-off factors and second power back-off factors respectively according to the back-off scale factor as follows：

^W\^PPUSCH,\ + Σ + ^Ρί PUCCH ¹ CMAX

i=2 Wherein, ^MAX represents the maximum transmit power of the UE； ^^¹Represent described

- PUSCH transmit powers；Show the 2nd PUSCH transmit powers；PUCCH represents the Physical Uplink Control Channel PUCCH transmit powers of the UE；2 k≤K, K be first communication node and second communication node number and, also,^κ≥1。

In the 5th the 4th kind of possible implementation of aspect, with reference to the 5th aspect, the processor according to first interference value and second interference value to the first PUSCH transmit powers and the 2nd PUSCH transmit powers specifically for retracting as follows：

In the 5th the 5th kind of possible implementation of aspect, with reference to the 5th the 4th kind of possible implementation of aspect, the processor specifically for obtaining first power back-off factors and second power back-off factors respectively according to first interference value and second interference value as follows：

Wherein, A={ 1 ..., K }, be first communication node and second communication node number and, also, κ_≥1, the number of second communication node is -1;When=1, ^ represents first power back-off factors, represents first interference value；Represent that the large scale of the UE to first communication node declines；AMAX represents the maximum transmit power of the UE；^ represents the first PUSCH transmit powers；When ≠ 1, ^ represents-l second communication nodes corresponding described second of kth Power back-off factors, represent corresponding second interference value of the second communication node；Represent that the large scale of the UE to kth-individual second communication node declines；AMAX represents the maximum transmit power of the UE；° ^ represents the corresponding 2nd PUS CH transmit powers of second communication node of kth-l.

In the 5th the 6th kind of possible implementation of aspect, with reference to the 5th aspect to the 5th the 5th kind of possible implementation of aspect, the auxiliary serving cell includes small cell.

In the 5th the 7th kind of possible implementation of aspect, with reference to the 5th aspect to the 5th the 6th kind of possible implementation of aspect, the processor specifically for obtaining the power back-off parameters as follows：

The first Power Control signaling that first communication node is sent is received by the receiver, wherein, the first Power Control signaling carries first interference value, and, receive the second Power Control signaling that second communication node is sent, wherein, the second Power Control signaling carries second interference value；Or,

The first Power Control signaling that first communication node is sent is received by the receiver, wherein, the first Power Control signaling carries the back-off scale factor；Or

The second Power Control signaling that second communication node is sent is received by the receiver, wherein, the second Power Control signaling carries the back-off scale factor.

6th aspect includes processor and transmitter there is provided a kind of first communication node, first communication node；

The processor, for obtaining power back-off parameters, wherein,

The power back-off parameters include back-off scale factor, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first power back-off factors are the power back-off factors that user terminal UE is retracted to the first Physical Uplink Shared Channel PUS CH transmit powers, second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUS CH transmit powers, wherein,-PUS CH the transmit powers are PUSCH transmit powers of the UE on first communication node correspondence carrier wave, the 2nd PUS CH transmit powers are PUS CH transmit powers of the UE on the second communication node correspondence carrier wave, wherein, first communication node is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE；Or, first communication node is The corresponding communication node of auxiliary serving cell of the UE, second communication node is the corresponding communication node of main serving cell of the UE；

Or,

The power back-off parameters include the first interference value, and first interference value is that the U E are sent to the interference that the Physical Resource Block of first communication node is subject to；

The transmitter, first interference value or the back-off scale factor for sending the processor acquisition are used to retract to the first PUSCH transmit powers and the 2nd PUSCH transmit powers to the UE, first interference value or the back-off scale factor.

In the first possible implementation in terms of the 6th, with reference to the 6th aspect, the transmitter specifically for sending first interference value or the back-off scale factor of the processor acquisition to the UE as follows:

Pass through such scheme, UE obtains power back-off parameters, so that when the UE determines that the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, can be according to the power back-off parameters, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted respectively, compared in the prior art by the way of equal proportion back-off factor retracts to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, this method can retract to the first PUSCH transmit powers and the 2nd PUSCH transmit powers respectively, so that the back-off mode of the UE is more flexible, UE power can be effectively allowed more can be reasonably assigned on different carrier waves, reduce the performance loss that the UE caused during back-off.

7th aspect is there is provided a kind of ascending power control method, and methods described includes：User terminal UE obtains the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, and first communication node is the corresponding communication of main serving cell of the UE Node, second communication node is the corresponding communication node of auxiliary serving cell of the UE；If the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, the first PUSCH transmit powers and the 3rd PUSCH transmit powers are retracted according to equation below：

^W ·

Wherein, 1≤/≤￡, is the number of first community, and the first community is the cell that is included in the auxiliary serving cell of the UE；0≤≤ M, M are the number of second community, and the second community is the auxiliary serving cell in addition to the first community that includes in the auxiliary serving cell of the UE；Chant, shows the first PUSCH transmit powers；^ represents the 3rd PUSCH transmit powers, and the 3rd PUSCH transmit powers are the PUSCH transmit powers on second community correspondence carrier wave；W represents the power back-off factors that the UE is retracted to the first PUSCH transmit powers and the 3rd PUSCH transmit powers；Represent the maximum transmit power of the UE；Represent the Physical Uplink Control Channel PUCCH transmit powers of the UE；^PpusCH' the 4th PUSCH transmit powers are represented, the 4th PUSCH transmit powers are the PUSCH transmit powers on first community correspondence carrier wave.

Eighth aspect includes acquiring unit and back-off unit there is provided a kind of uplink power control device, described device；

The acquiring unit, for obtaining the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the user terminal UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, first communication node is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The back-off unit, if the first PUSCH transmit powers and the summation of the 2nd PUSCH transmit powers that are obtained for the acquiring unit exceed the maximum transmit power of the UE, according to equation below to the first PUSCH transmit powers and the 3rd PUSCH transmit powers are retracted

Wherein, l≤/≤, be the number of first community, the first community is the cell that is included in the auxiliary serving cell of the UE；0≤≤ M, M are the number of second community, and the second community is the auxiliary serving cell in addition to the first community that includes in the auxiliary serving cell of the UE；Chant, shows the first PUSCH transmit powers；^ represents the 3rd PUSCH transmit powers, and the 3rd PUSCH transmit powers are the PUSCH transmit powers on second community correspondence carrier wave；W represents the power back-off factors that the UE is retracted to the first PUSCH transmit powers and the 3rd PUSCH transmit powers；Represent the maximum transmit power of the UE；Represent the Physical Uplink Control Channel PUCCH transmit powers of the UE；^PpusCH' the 4th PUSCH transmit powers are represented, the 4th PUSCH transmit powers are the PUSCH transmit powers on first community correspondence carrier wave.

9th aspect is there is provided a kind of user terminal UE, and the UE includes transmitter, receiver and the memory coupled with processor；

The processor, is used for

Obtain the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；

If the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, the first PUSCH transmit powers and the 3rd PUSCH transmit powers are retracted according to equation below：

^W ·

Wherein, l≤/≤, be the number of first community, the first community is the cell that is included in the auxiliary serving cell of the UE； 0≤ ≤ M ,_MFor the number of second community, The second community is the auxiliary serving cell in addition to the first community that includes in the auxiliary serving cell of the UE；Show the first PUSCH transmit powers；USCH^ represents the 3rd PUSCH transmit powers, and the 3rd PUSCH transmit powers are the PUSCH transmit powers on the second community correspondence carrier wave included in the 2nd PUSCH transmit powers；W represents the power back-off factors that the UE is retracted to the first PUSCH transmit powers and the 3rd PUSCH transmit powers；Ware represents the maximum transmit power of the UE；Represent the Physical Uplink Control Channel PUCCH transmit powers of the UE；^Ppusc' represent the 4th PUSCH transmit powers, the 4th PUSCH transmit powers be the 2nd PUSCH transmit powers in include the first community correspondence carrier wave on PUSCH transmit powers.

By such scheme, compared to formula（2) mode of the back-off in, PUSCH transmit powers rollback mode provided in an embodiment of the present invention is more targeted, can be under small cell scenario, only the PUSCH transmit powers on the correspondence carrier wave of the cell in addition to cell of the UE are retracted, PUSCH transmit powers on the cell correspondence carrier wave of the UE are not retracted, and then because the PUSCH transmit powers on cell correspondence carrier wave need not carry out back-off, it thereby may be ensured that the transmission rate of the cell, it is to avoid influence service system.

In the prior art, if the transmit power for frequently occurring UE exceedes the situation of the specified maximum transmit power of the UE, for UE, power consumption can be very big.Therefore, in order to solve this technical problem, the present embodiment provides a kind of ascending power control method and device.

Tenth aspect is there is provided a kind of ascending power control method, and methods described includes：User terminal UE obtains the number that the second communication node distributes to the Physical Resource Block PRB of the UE, wherein, the number of the PRB be by the first communication node power headroom PHR current according to the UE determine after be sent to second communication node, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The UE obtains PUSCH transmit powers of the UE on second communication node correspondence carrier wave according to the number of the PRB.

In the first possible implementation in terms of the tenth, with reference to the tenth aspect, the UE is obtained before the number for the PRB that the second communication node distributes to the UE, in addition to：The UE sends institute by RRM RRM to first communication node The current PHR of UE are stated, the PHR is used for the number for determining the PRB.

In the tenth second of possible implementation of aspect, with reference to the tenth aspect or the tenth aspect the first possible implementation, the UE obtain the second communication node distribute to it is described

UE Physical Resource Block PRB number, including：

The Power Control signaling that second communication node is sent is received, wherein, the Power Control signaling carries the number of the RRB.

In the third possible implementation in terms of the tenth, with reference to the tenth aspect to the tenth second of possible implementation of aspect, the auxiliary serving cell includes small cell.

Tenth one side includes there is provided a kind of ascending power control method, methods described：First communication node receives the current power headroom PHR of the UE that user terminal UE sends, wherein, first communication node is the corresponding communication node of main serving cell of the UE；

First communication node determines that the second communication node distributes to the Physical Resource Block PRB of UE number according to the PHR, wherein, second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The number of the PRB is sent to second communication node by first communication node, so that the number of the PRB is sent to the UE by second communication node, the number of the PRB is used to obtain PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

In the tenth on the one hand the first possible implementation, with reference to the tenth on the one hand, first communication node determines that the second communication node distributes to the PRB of UE number according to the PHR, including：

First communication node determines that second communication node distributes to the PRB of UE number according to the PHR and equation below：

M_PUSC¾C = 10^{( )} Wherein, c represents the corresponding carrier wave of second communication node； M_pusa^ represents that corresponding second communication node of the carrier wave distributes to UE PRB number； Ρ._{ΡΙΒ ε}() represents up target power value, i.e., the up expectation performance number of corresponding second communication node of described carrier wave；^ΡRepresent descending path loss estimation；^α') represent large scale decline weight factor ,=0 or 1 or 2. The tenth on the one hand in second of possible implementation, with reference to the tenth on the one hand or the tenth on the one hand the first possible implementation, the number of the PRB is sent to second communication node by first communication node to be included：

First communication node sends a request message to second communication node, the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node into the U E, wherein, the request message carries the number of the PRB.

In the tenth on the one hand the third possible implementation, with reference to the tenth one side to the tenth second of possible implementation of one side, the auxiliary serving cell includes small cell.

12nd aspect is there is provided a kind of ascending power control method, and methods described includes：Second communication node obtains the number that second communication node distributes to user terminal UE Physical Resource Block PRB, wherein, the number of the PRB is to be determined by the first communication node according to the current power headroom PHR of the UE, wherein, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The number of the PRB is sent to the UE by second communication node, and the number of the PRB is used to obtain PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

In the first possible implementation in terms of the 12nd, with reference to the 12nd aspect, second communication node obtains the number that second communication node distributes to the PRB of the UE, including：

The request message that first communication node is sent is received, the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node into the UE, wherein, the request message carries the number of the PRB.

In the 12nd second of possible implementation of aspect, with reference to the 12nd aspect or the 12nd aspect the first possible implementation, the number of the PRB is sent to the UE by second communication node, including：

Transmit power control signaling gives the UE, and the Power Control signaling carries the number of the RRB.

In the third possible implementation in terms of the 12nd, with reference to the 12nd aspect to the 12nd second of possible implementation of aspect, the auxiliary serving cell includes small cell.

13rd aspect includes acquiring unit there is provided a kind of user terminal UE, the UE；The acquiring unit, the physics of the UE is distributed to for obtaining the second communication node Resource block PRB number, wherein, the number of the PRB be by the first communication node power headroom PHR current according to the UE determine after be sent to second communication node, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The acquiring unit, is additionally operable to the number according to the PRB, obtains Physical Uplink Shared Channel PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

In the first possible implementation in terms of the 13rd, with reference to the 13rd aspect, the UE also includes transmitting element；

The transmitting element, for before the number that the acquiring unit obtains the PRB that the second communication node distributes to the UE, the current PHR of the UE are sent to first communication node by RRM RRM, the PHR is used for the number for determining the PRB.

The 13rd aspect second of possible implementation in, with reference to the 13rd aspect or the 13rd aspect the first possible implementation, the acquiring unit specifically for obtaining the number that the second communication node distributes to the PRB of the UE as follows：

In the third possible implementation in terms of the 13rd, with reference to the 13rd aspect to the 13rd second of possible implementation of aspect, the auxiliary serving cell includes small cell.

Fourteenth aspect includes receiving unit, determining unit and transmitting element there is provided a kind of first communication node, first communication node；

The receiving unit, the current power headroom PHR of the UE for receiving user terminal UE transmissions, wherein, first communication node is the corresponding communication node of main serving cell of the UE；

The determining unit, for the PHR received according to the receiving unit, determine that the second communication node distributes to the Physical Resource Block PRB of UE number, wherein, second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The transmitting element, the number of the PRB for the determining unit to be determined is sent to second communication node, so that the number of the PRB is sent to the UE by second communication node, the number of the PRB is used to obtain Physical Uplink Shared Channel PUSCH transmit powers of the UE on second communication node correspondence carrier wave. In fourteenth aspect in the first possible implementation, with reference to fourteenth aspect, the determining unit specifically for as follows according to the receiving unit receive described in

PHR, determines that the second communication node distributes to the PRB of UE number：

According to the PHR and equation below, determine that second communication node distributes to the PRB of UE number：

M_PUSC¾C Wherein, c represents the corresponding carrier wave of second communication node； M_pusa^ represents that corresponding second communication node of the carrier wave distributes to UE PRB number； P._PUSC') represent up target power value, i.e., the up expectation performance number of corresponding second communication node of described carrier wave；^PRepresent descending path loss estimation；^α') represent large scale decline weight factor, 0 or 1 or 2.

In second of possible implementation of fourteenth aspect, with reference to fourteenth aspect or fourteenth aspect the first possible implementation, the PRB of the transmitting element specifically for as follows determining determining unit number is sent to second communication node：

Second communication node is sent a request message to, the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node into the UE, wherein, the request message carries the number of the PRB.

In fourteenth aspect in the third possible implementation, auxiliary serving cell includes cell with reference to described in fourteenth aspect to second of possible implementation of fourteenth aspect.

15th aspect includes acquiring unit and transmitting element there is provided a kind of second communication node, second communication node；

The acquiring unit, for obtaining the number that second communication node distributes to user terminal UE Physical Resource Block PRB, wherein, the number of the PRB is to be determined by the first communication node according to the current PHR of the UE, wherein, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The transmitting element, the number of the PRB for the acquiring unit to be obtained is sent to the UE, and the number of the PRB is used to obtain Physical Uplink Shared Channel PUSCH transmit powers of the UE on second communication node correspondence carrier wave. In the first possible implementation in terms of the 15th, with reference to the 15th aspect, the acquiring unit specifically for obtaining the number that second communication node distributes to user terminal UE PRB as follows：

In the 15th second of possible implementation of aspect, with reference to the 15th aspect or the 15th aspect the first possible implementation, the PRB of the transmitting element specifically for as follows obtaining acquiring unit number is sent to the UE:

In the third possible implementation in terms of the 15th, with reference to the 15th aspect to the 15th second of possible implementation of aspect, the auxiliary serving cell includes small cell.

16th aspect is there is provided a kind of user terminal UE, and the UE includes transmitter, receiver and the memory coupled with processor；

The processor, is used for

Obtain the number that the second communication node distributes to the Physical Resource Block PRB of the UE, wherein, the number of the PRB be by the first communication node determined according to the current PHR of the UE after be sent to second communication node, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；

According to the number of the PRB, Physical Uplink Shared Channel PUSCH transmit powers of the UE on second communication node correspondence carrier wave is obtained.

In the first possible implementation in terms of the 16th, with reference to the 16th aspect, the transmitter, for before the number that the processor obtains the PRB that the second communication node distributes to the UE, the current PHR of the UE are sent to first communication node by RRM RRM, the PHR is used for the number for determining the PRB.

The 16th aspect second of possible implementation in, with reference to the 16th aspect or the 16th aspect the first possible implementation, the processor specifically for obtaining the number that the second communication node distributes to the PRB of the UE as follows：

The Power Control signaling that second communication node is sent is received by the receiver, Wherein, the Power Control signaling carries the number of the RRB.

In the third possible implementation in terms of the 16th, with reference to the 16th aspect to the 16th second of possible implementation of aspect, the auxiliary serving cell includes small cell.

17th aspect includes receiver, processor and transmitter there is provided a kind of first communication node, first communication node；

The receiver, the current power headroom PHR of the UE for receiving user terminal UE transmissions, wherein, first communication node is the corresponding communication node of main serving cell of the UE；

The processor, for the PHR received according to the receiver, determines that the second communication node distributes to the Physical Resource Block PRB of UE number, wherein, second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The transmitter, the number of the PRB for the processor to be determined is sent to second communication node, so that the number of the PRB is sent to the UE by second communication node, the number of the PRB is used to obtain Physical Uplink Shared Channel PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

In the first possible implementation in terms of the 17th, with reference to the 17th aspect, the processor determines that the second communication node distributes to the PRB of UE number specifically for the PHR received as follows according to the receiver：

In the 17th second of possible implementation of aspect, with reference to the 17th aspect or the 17th aspect the first possible implementation, the PRB of the transmitter specifically for as follows determining processor number is sent to second communication node：Second communication node is sent a request message to, the request message is used for request will The corresponding cell of second communication node is added to the auxiliary serving cell of the UE, wherein, the request message carries the number of the PRB.

In the third possible implementation in terms of the 17th, with reference to the 17th aspect to the 17th second of possible implementation of aspect, the auxiliary serving cell includes small cell.

18th aspect is there is provided a kind of second communication node, and second communication node includes the receiver and transmitter coupled with processor；

The processor, for obtaining the number that second communication node distributes to user terminal UE Physical Resource Block PRB, wherein, the number of the PRB is to be determined by the first communication node according to the current power headroom PHR of the UE, wherein, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The transmitter, the number of the PRB for the processor to be obtained is sent to the UE, and the number of the PRB is used to obtain Physical Uplink Shared Channel PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

In the first possible implementation in terms of the 18th, with reference to the 18th aspect, the processor specifically for obtaining the number that second communication node distributes to user terminal UE PRB as follows：

The request message that first communication node is sent is received by the receiver, the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node into the UE, wherein, the request message carries the number of the PRB.

The 18th aspect second of possible implementation in, with reference to the 18th aspect or the 18th aspect the first possible implementation, the transmitter by the number for the PRB for obtaining the processor specifically for being sent to the UE as follows:

The 18th aspect second of possible implementation in, with reference to the 18th aspect or the 18th aspect the first possible implementation, the auxiliary serving cell include small cell.

Pass through such scheme, UE obtains the number that the second communication node distributes to the PRB of the UE, the number of the PRB is to be determined by first communication node according to the PHR of the UE, then the UE is according to the number of the PRB, obtain the 2nd PUSCH transmit powers, the 2nd PUSCH transmit powers can ensure that the summation with the first PUSCH transmit powers is no more than the maximum transmit power of the UE, therefore avoid frequently The transmit power for UE occur exceedes the situation of its specified maximum transmit power, and then can reduce UE power consumption.Brief description of the drawings

Fig. 1 is a kind of ascending power control method provided in an embodiment of the present invention；

Fig. 2 is another ascending power control method provided in an embodiment of the present invention

Fig. 3 is another ascending power control method provided in an embodiment of the present invention

Fig. 4 is another ascending power control method provided in an embodiment of the present invention

Fig. 5 is another ascending power control method provided in an embodiment of the present invention

Fig. 6 is another ascending power control method provided in an embodiment of the present invention

Fig. 7 is another ascending power control method provided in an embodiment of the present invention

Fig. 8 is another ascending power control method provided in an embodiment of the present invention

Fig. 9 is another ascending power control method provided in an embodiment of the present invention

Figure 10 is another ascending power control method provided in an embodiment of the present invention；Fig. 11 is another ascending power control method provided in an embodiment of the present invention；Figure 12 is a kind of UE schematic diagrames provided in an embodiment of the present invention；

Figure 13 is another UE schematic diagrames provided in an embodiment of the present invention:

Figure 14 is a kind of first communication node schematic diagram provided in an embodiment of the present invention；Figure 15 is a kind of UE schematic diagrames provided in an embodiment of the present invention；

Figure 16 is a kind of UE schematic diagrames provided in an embodiment of the present invention；

Figure 17 is another UE schematic diagrames provided in an embodiment of the present invention:

Figure 18 is a kind of first communication node schematic diagram provided in an embodiment of the present invention；Figure 19 is a kind of second communication node schematic diagram provided in an embodiment of the present invention；Figure 20 is a kind of UE schematic diagrames provided in an embodiment of the present invention；

Figure 21 is a kind of first communication node schematic diagram provided in an embodiment of the present invention；Figure 22 is a kind of UE schematic diagrames provided in an embodiment of the present invention；

Figure 23 is a kind of UE schematic diagrames provided in an embodiment of the present invention；

Figure 24 is a kind of first communication node schematic diagram provided in an embodiment of the present invention；Figure 25 is a kind of second communication node schematic diagram provided in an embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention A part of embodiment, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

Based on formula（And formula 1)（2) back-off method, for the PUSCH transmit powers on different carrier waves rollback be using constant power back-off factor by the way of, PUSCH transmit powers on i.e. all carrier waves are retracted using equal power back-off factors, obviously, this back-off mode underaction.Also, because the transmission characteristic of different carrier waves is different, and each carrier wave is likely to result in performance loss using identical PUSCH transmit powers.Particularly in the case of cell, because UE is closer apart from the corresponding communication node of cell, in the cell, PUSCH transmission power ratio originally determined UE is relatively low, but can provide higher data rate transmission again in cell.If retracted using the equal proportion factor, so that the rollback degree of the PUSCH transmit powers of cell is identical with the back-off degree of the PUSCH transmit powers of main serving cell, UE can be caused lower in the PUSCH transmit powers of cell, so as to which more data transmission faults can be caused, to the uplink throughput of user, particularly the up throughput of cell, causes large effect, reduces Consumer's Experience.Therefore, the PUSCH transmit powers that above-mentioned scheme of the prior art is likely to result in after retracting are improper, so that the problem of influenceing systematic function.

It should be noted that the scheme of the embodiment of the present invention is not limited to the scene of the small cell scenario or other CA technologies using CA technologies.

Succinct for the description of following each embodiments, the related definition that several nouns are provided first is as follows：

First PUSCH transmit powers：Represent PUSCH transmit powers of the UE on the first communication node correspondence carrier wave；

2nd PUSCH transmit powers：Represent PUSCH transmit powers of the UE on the second communication node correspondence carrier wave；

First power back-off factors：Represent the power back-off factors that UE is retracted to the first PUSCH transmit powers；

Second power back-off factors：Represent the power back-off factors that UE is retracted to the 2nd PUSCH transmit powers.

It should be noted that above-mentioned each definition is applied to following each inventive embodiments, wherein, first communication node is specifically as follows macro base station, and second communication node is specifically as follows micro-base station, relay station or remote radio（Remote Radio Head, RRH) etc., The embodiment of the present invention is not especially limited to first communication node and second communication node.Embodiment one,

The embodiment of the present invention provides a kind of ascending power control method, the corresponding cell of second communication node has been added to the auxiliary serving cell of the UE in the first communication node by methods described, wherein, first communication node is the UE corresponding communication node of main serving cell, second communication node is the UE corresponding communication node of auxiliary serving cell, specifically as shown in Fig. 1, including：

101st, UE obtains power back-off parameters, wherein, the power back-off parameters include the first interference value and the second interference value, first interference value is that the UE is sent to the interference that the Physical Resource Block of first communication node is subject to, and second interference value is that the UE is sent to the interference that the Physical Resource Block of second communication node is subject to；Or the power back-off parameters include back-off scale factor, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors.

Wherein, power back-off parameters described in the embodiment of the present invention can include first interference value and second interference value；Or, the power back-off parameters can also include back-off scale factor, and the embodiment of the present invention is not especially limited to this.

Specifically, the Power Control signaling that the power back-off parameters can be handed down to the UE by the first communication node and/or the second communication node is carried, such as：If the power back-off parameters are first interference value and second interference value, then first interference value can be carried in the first Power Control signaling that first communication node is sent to the UE, and second interference value can be carried in the second Power Control signaling that second communication node is sent to the UE；If the power back-off parameters are the back-off scale factor, then the back-off scale factor may be carried in the first Power Control signaling that first communication node is sent to the UE, or, the back-off scale factor may be carried in the second Power Control signaling that second communication node is sent to the UE, and the embodiment of the present invention is not especially limited to this.Wherein, the control signaling that the first Power Control signaling or the second Power Control signaling belong in existing standard, for example, can be wireless heterogeneous networks（Radio Resource Control, RRC) signaling, the embodiment of the present invention is not especially limited to this.

Certainly, the power back-off parameters can also pass through medium education control unit (Media Access Control Control Element, MAC CE) is issued to described

UE ends, the embodiment of the present invention is not construed as limiting to the concrete mode that the power back-off parameters are sent to the UE, only illustrates that the UE obtains the power back-off parameters.

It should be noted that, the number of second communication node may be one, may also be multiple, i.e. described first communication node may add the auxiliary serving cell that a cell is the UE, the auxiliary serving cell that multiple cells are the UE may also be added, the embodiment of the present invention is not especially limited to the number of second communication node, the corresponding communication node of cell that UE auxiliary serving cell is added to by the main serving cell is regarded as the second communication node, it is adaptable to the embodiment of the present invention.Particularly, the auxiliary serving cell can specifically include cell, and the embodiment of the present invention is not especially limited to this.

It should be noted that cell communication node is a kind of base station, multiple cells can be with the deployment of cluster in a network, to provide the covering of hot spot region.Its transmission power and coverage is smaller compared with macro base station, and micro-base station, and wherein the dynamic range of transmission power typically can be in 24dBm 37dBm, for example, typical value can be 24dBm, 30dBm, or 37dBm, the covering radius of cell may be generally less than 20m.It is of course also possible to be not limited to above-mentioned parameter, the embodiment of the present invention is not limited this.Cell hereinafter can refer to description herein, repeat no more hereinafter.

102nd, UE obtains the first PUSCH transmit powers and the 2nd PUSCH transmit powers.

Specifically, by taking the ' ' subframe as an example, the step of UE obtains the first PUSCH transmit powers and the 2nd P U S C H transmit powers specifically can be according to formula（3)

Specifically, according to formula（3) the first parameter carried in the first Power Control signaling of the UE, is sent to reference to first communication node, the first PUSCH transmit powers are obtained, wherein, first parameter can include：The up expectation power of first communication node^PF, first communication node correspondence main carrier on large scale decline weight factor " ' (, first communication node distribute to the UE Physical Resource Block (Physical resource block, PRB) number^M^_u, descending path loss of first communication node on correspondence main carrier estimate the UE in first communication section The maximum transmit power of ascending power Dynamic gene ^, the UE on first communication node correspondence main carrier on point correspondence main carrier^Pc^ ⁿAnd the power compensating value of the modulation coding mode MCS on the first communication node correspondence main carrier^{Δ ε11}。

According to formula（3) the second parameter carried in the second Power Control signaling of the UE, is sent to reference to second communication node, the 2nd PUSCH transmit powers are obtained, wherein, wherein, second parameter includes：The up expectation power of second communication node^p _{0 en}, large scale decline weight factor in second communication node correspondence secondary carrier^aS, second communication node distribute to the UE PRB number^Ms_∞u, second communication node correspondence secondary carrier on descending path loss estimation^Ρ^_ε11, the UE second communication node correspondence secondary carrier on ascending power Dynamic gene/^ ", the UE second communication node correspondence secondary carrier on maximum transmit power ^ it is beautiful¹¹And the power compensating value of the modulation coding mode MCS in the second communication node correspondence secondary carrier

△TF,Scell

Wherein, c represents corresponding carrier wave, such as：If the corresponding carrier wave of main serving cell, c represents main carrier herein, if the corresponding carrier wave of auxiliary serving cell, then c represents the corresponding secondary carrier of the auxiliary serving cell；^PpuscHPUSCH transmit powers on ') represent UE the ' ' subframe, c carrier waves；^pc_MAX ') represent maximum transmission power values of the UE in subframe, c carrier waves；^MpuscH') represent the ' ' subframe, the corresponding communication node of c carrier waves is distributed to

UE PRB number；^p.- USCH, '）Represent the up expectation performance number of up target power value, the i.e. corresponding communication node of c carrier waves；Represent descending path loss estimation of the corresponding communication node of C carrier waves on c carrier waves；^α') represent c carrier waves on large scale decline weight factor；W represents ascending power Dynamic genes of the UE in the ' ' subframe, c carrier waves；Represent the modulation coding mode in subframe, c carrier waves（Modulation and Coding Scheme, MCS) power compensating value, be a parameter, its span is 0,1,2, the value is determined according to the UE transmission mode that high level is configured.Different values, the different ^-USCHO' of correspondence) and a_c( >。

It is of course also possible to there is the method that others UE obtains the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the embodiment of the present invention is not especially limited to this. It should be noted that step 101 and step 102 are without inevitable sequencing, the embodiment of the present invention is not especially limited to this.

If the 103, the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, according to first interference value and second interference value, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted, or, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to the back-off scale factor.

Specifically, if the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the predetermined UE maximum transmit power, illustrate the rollback for needing to carry out PUSCH transmit powers, now, can be according to the power back-off parameters, first power back-off factors and second power back-off factors are obtained first, and then the first PUSCH transmit powers are retracted according to first power back-off factors, and, according to second power back-off factors, the 2nd PUSCH transmit powers are retracted.Certainly, for different power back-off parameters, the different methods for obtaining first power back-off factors and second power back-off factors may be corresponded to.

In one implementation, by taking the ' ' subframe as an example：If the power back-off parameters include first interference value and second interference value, now can be according to the power back-off parameters, with reference to formula（4) first power back-off factors and second power back-off factors, are calculated respectively, wherein, formula（4) it is as follows： Formula（4) wherein ,={ 1 ..., }, is the index number of first communication node and the second communication node, A takes 1 all values arrived respectively, so as to obtain corresponding second power back-off factors of each second communication node¹^'') represent power back-off factors of the UE in subframe, carrier wave；') represent subframe interference value；Represent the large scale decline of subframe；^ O represent maximum transmit powers of the UE in subframe； P H,_k(i, show PUSCH transmit powers of the UE in the ' ' subframe, carrier wave, can be obtained according to formula (3), it is only necessary to make formula（3) c=k in, can be obtained_RAC^0_;Number for first communication node and second communication node and, also, K_≥2, the number of second communication node is -1. When=1, (0 represents first power back-off factors of subframe to ^, and (0 represents first interference value of the ' ' subframe；Represent that, in the ' ' subframe, the UE to first communication node large scale declines；(0 represents the maximum transmit power of the UE in the ' ' subframe to ware；^^^ ') represent subframe the first PUSCH transmit powers, wherein, first carrier is main carrier；

When ≠ 1, ^ represents corresponding second power back-off factors of the kth -1 of subframe second communication node, corresponding second interference value of the of ') represent the ' ' subframe second communication node；Represent in subframe, the UE to the communication node of kth -1 second large scale declines；(0 represents maximum transmit powers of the UE in subframe to ware；^^W represents the corresponding 2nd PUSCH transmit powers of the of the ' ' subframe second communication node, wherein, carrier wave is secondary carrier, and k value number is the number of second communication node.

In another implementation, by taking the ' ' subframe as an example：If the power back-off parameters include back-off scale factor, now can be according to the back-off scale factor, with reference to formula（5) first power back-off factors and the second power back-off factors w^ S^i are obtained respectively) formula（ 5).Wherein, in formula（5) in,_Wl(0 represents first power back-off factors of the ' ' subframe, and (0 represents second power back-off factors of the ' ' subframe to ^, and (0 represents the back-off scale factor of subframe to p, represents the^ζ' subframe, the UE to first communication node large scale decline,_g(0 represents in the ' ' subframe, the UE to second communication node large scale decline, m≤K, value number for second communication node number.

Specifically, can be according to the back-off scale factor, with reference to formula（And formula 5)（6) first power back-off factors and second power back-off factors, are calculated respectively, wherein, the formula（5) it is as follows：W^ S^i) formula（ 5 ) ^Wl (0

Formula（6) wherein, in formula（6) in, (O represents the first PUSCH in ζ subframes to ^^^

Transmit power；In the 2nd pusCH transmit powers of subframe；Represent PUCCH transmit powers of the UE in subframe；.Μ Α Λ) maximum transmit powers of the UE in subframe is represented, Λ represents linear value.

Certainly, when the power back-off parameters are specially back-off scale factor, it is also possible to reference to formula（5) the first power back-off factors and the second power back-off factors are obtained with other manner, the embodiment of the present invention is not especially limited to this.For example, it may be UE all PUCCH transmit powers and all PUSCH transmit powers sums are equal to a predefined power；Or UE all PUSCH transmit powers power are equal to the modes such as a predefined power.

It should be noted that ware ') from MAX ') it is different, Μ Α Χ represent maximum transmission power values of the UE in the i-th subframe, c carrier waves；Maximum transmit powers of the UE in the ' ' subframe is represented, wherein, UE may correspond to multiple carrier waves,^PcMAX0 ', ' people and meet formula (6).

It should be noted that, if maximum transmit power of the summation not less than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, UE need not retract to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, and uplink power control process terminates for the time being.

Be set forth below that an example illustrates the embodiment of the present invention implements process, it is assumed that current have 1 the first communication node, 2 the second communication nodes, and the power back-off parameters that UE is obtained are specially back-off scale factor, then can combine formula（And formula 5)（6) equation below, is obtained：

Wy H)PpUSCH,i (0 + W₂(l) P (0+(' (0+KuCCH (0=(0 wherein , Chant Meetings can be respectively according to formula（3) obtain PpUSCH, after PpUSCH line taking life be worth.

According to above-mentioned formula, WW can be obtained^W^ ^ (, if

^PpUSCH'、 (0 + (0 + (0^≥, then can be according to ^_{( )}First P U S C H transmit powers are retracted, according to (0 (0 retracts to the PUSCH transmit powers on 2 the second communication nodes correspondence carrier waves respectively.

Description based on above-described embodiment, a kind of ascending power control method provided in an embodiment of the present invention obtains power back-off parameters by UE, so that when the UE determines that the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, can be according to the power back-off parameters, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted respectively, compared in the prior art by the way of equal proportion back-off factor retracts to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, this method to the-PUSCH transmit powers and the 2nd PUSCH transmit powers because can retract respectively, so that the back-off mode of the UE is more flexible, and the power back-off parameters include first interference value and second interference value, or, the power back-off parameters include the back-off scale factor, what the power back-off parameters were characterized is the actual conditions of each carrier wave in current network, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to the power back-off parameters, UE power can be effectively allowed more can be reasonably assigned on different carrier waves, reduce the performance loss that the UE caused during back-off.Especially under small cell scenario, when carrying out Power Control according to the power back-off parameters, the back-off degree in slight area can be made smaller, therefore the transmission rate of user can be lifted, improve Consumer's Experience.

The embodiment of the present invention also provides a kind of ascending power control method, specifically as shown in Fig. 2, including： 201st, the first communication node obtains power back-off parameters, wherein, the power back-off parameters include the first interference value, or, the power back-off parameters include back-off scale factor, the interference value is that the UE is sent to the interference that the Physical Resource Block of first communication node is subject to, and the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors.

In the present embodiment, first communication node can be the corresponding communication node of main serving cell of the UE, and second communication node can be the corresponding communication node of auxiliary serving cell of the UE；Or, first communication node can be the corresponding communication node of auxiliary serving cell of the UE, and second communication node can be the corresponding communication node of main serving cell of the UE, and the embodiment of the present invention is not especially limited to this.

Specifically, first communication node can obtain the power back-off parameters in the following way：

First communication node can obtain the U E using method of the prior art and be sent to the interference that the Physical Resource Block of the first communication node is subject to, for example：Useful signal on ascending physical signal resource block of first communication node by measuring the UE, and the interference value is obtained according to received signal strength indicator (Received Signal Strength Indication, RSSI) estimation.It is of course also possible to obtain the interference value using other manner.

The mode that the UE obtains back-off scale factor can be as follows：First communication node is according to UE RRM（Radio Resource Management, RRM) measurement report, UE is evaluated respectively with first communication node and the link-quality of second communication node, and then the relation that can be inversely proportional according to back-off scale factor with link-quality, obtain back-off scale factor.Certainly, the back-off scale factor can also be empirical value, occur in the variable mode of enumeration type.

The power back-off parameters can certainly be obtained by other means, and the embodiment of the present invention will not be repeated here.

202nd, the first communication node sends first interference value or the back-off scale factor to the UE;

Wherein, if first interference value is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the UE retracts according to first interference value and the second interference value to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, second interference value is institute State the UE that UE obtains from second communication node and be sent to the interference value that the Physical Resource Block of second communication node is subject to；Or, if the summation that the back-off scale factor is used for the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, the UE is according to back-off scale factor to described the

- PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted.

Specifically, first communication node can be in transmit power control signaling to described

The power back-off parameters are carried during UE, so that the power back-off parameters are sent into the UE.

Wherein, the control signaling that the Power Control signaling belongs in existing standard, for example, can be RRC signaling, and the embodiment of the present invention is not especially limited to this.

Certainly, the power back-off parameters can also be issued to the UE ends by MAC CE, and the embodiment of the present invention sends the power back-off parameters to first communication node and is not especially limited to the mode of the UE.

Description based on above-described embodiment, the embodiments of the invention provide a kind of ascending power control method, the first communication node obtains power back-off parameters in this method, and the power back-off parameters are sent to the UE, by the UE according to the power back-off parameters, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted.Compared to UE described in prior art by the way of equal proportion back-off factor retracts to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, this method to the first PUSCH transmit powers and the 2nd PUSCH transmit powers because can retract respectively, so that the back-off mode of the UE is more flexible, and power back-off parameters described in this method include interference value, or, the power back-off parameters include the back-off scale factor, what the power back-off parameters were characterized is the actual conditions of each carrier wave in current network, the power back-off parameters are sent to the UE, when can make it that the UE carries out PUSCH transmit powers rollback according to the power back-off parameters, the PUSCH transmit powers of the UE are more reasonably assigned on different carrier waves, so as to reduce the performance loss caused when the UE carries out back-off.Especially under small cell scenario, the power back-off parameters are sent to the UE by first communication node, when the UE carries out Power Control according to the power back-off parameters, the back-off degree in slight area can be made smaller, therefore the transmission rate of user can be lifted, improves Consumer's Experience. Embodiment two,

The embodiment of the present invention provides a kind of ascending power control method, in methods described, the corresponding cell of second communication node has been added to the auxiliary serving cell of the U E by the first communication node, wherein, first communication node is the UE corresponding communication node of main serving cell, second communication node is the UE corresponding communication node of auxiliary serving cell, it is specific as shown in figure 3, including：

301st, UE obtains the first PUSCH transmit powers and the 2nd PUSCH transmit powers.Specifically, the method for UE acquisition the first PUSCH transmit powers and the 2nd PUSCH transmit powers refers to the description of step 102, the embodiment of the present invention will not be repeated here.

If the 302, the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, UE retracts according to formula (7) to the first PUSCH transmit powers and the 3rd PUSCH transmit powers；

, ^M ( , , L

^W( · ^PPUSCH,pceU (0 + X ^W(corpse PUSCH'm (0≤^PCMAX (0 - ^PPUCCH (0-X corpse PUSCH, ' (0

M- ° of i-i formula（7) wherein, formula（7) be specially subframe back-off formula, 1≤/≤/ be first community call number, wherein, the first community is the small cell that includes in the auxiliary serving cell of the UE；For the number of the first community, 0≤≤ M,_wFor the call number of second community, wherein, the second community is the auxiliary serving cell in addition to first community included in the auxiliary serving cell of the UE, and M is the number of the second community； p a)

¹PUSCH, pcell, '¹Show PUSCH transmit powers of the UE in the ' ' subframe, main carrier, i.e.,

' subframe the first PUSCH transmit powers；^^^^ represents the 3rd of the ' ' subframe

PUSCH transmit powers, the 3rd PUSCH transmit powers be the 2nd PUSCH transmit powers in include the second community correspondence carrier wave on PUSCH transmit powers；Represent the UE in the ' subframe, the power back-off factors retracted to the first PUSCH transmit powers and the 3rd PUSCH transmit powers；(0 represents maximum transmit powers of the UE in subframe to AM；^ α Ο represent that the UE is sent in the PUCCH of subframe Power；_usav(0 represent subframe the 4th PUSCH transmit powers, the 4th PUSCH transmit powers be the 2nd PUSCH transmit powers in include the first community correspondence carrier wave on PUSCH transmit powers； ^^PpUSaV(the PUSCH transmit power sums on ') represent the ' ' subframe, UE all first communities correspondence carrier wave, i.e., in subframe, UE all cells correspond to the PUSCH transmit power sums on carrier wave.

Specifically, under small cell scenario, because UE is closer apart from small cell Node, PUSCH transmit powers on cell correspondence carrier wave are also than relatively low, if retracted to cell using equal proportion back-off factor, so that the back-off degree of cell is identical with the back-off degree of main serving cell or other auxiliary serving cells, UE can be caused lower in the PUSCH transmit powers of cell, but because higher data rate transmission can be provided again in cell, consequently, it is possible to the uplink throughput of user, uplink throughput particularly to cell is affected greatly, so that the transmission rate reduction of cell.The embodiment of the present invention passes through formula（7) behavior to UE sides is updated, compared to formula（2) mode of back-off, formula are not only carried out in the PUSCH transmit powers on the ' carrier wave（7) it is more targeted, can be under small cell scenario, only the PUSCH transmit powers on the correspondence carrier wave of the cell in addition to cell of the UE are retracted, PUSCH transmit powers on the cell correspondence carrier wave of the UE are not retracted, and then because the PUSCH transmit powers on cell correspondence carrier wave need not carry out back-off, it thereby may be ensured that the transmission rate of the cell, i.e. under small cell scenario, the characteristics of giving full play to cell, lifts Consumer's Experience.

Certainly, if maximum transmit power of the summation not less than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, UE need not retract to-PUSCH the transmit powers and the 2nd PUSCH transmit powers, and uplink power control process terminates for the time being.Embodiment three,

In the prior art, if the transmit power for frequently occurring UE exceedes the situation of the specified maximum transmit power of the UE, for UE, power consumption can be very big.Therefore, the present embodiment provides a kind of ascending power control method, to avoid above mentioned problem, specific such as Fig. 4 It is shown, including：

401st, UE obtains the number that the second communication node distributes to the PRB of the UE, wherein, the number of the PRB is to be determined by the first communication node according to power headroom (Power Headroom, PHR) current the UE.

Wherein, first communication node is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE specifically, UE can obtain the number that the second communication node distribute to the PRB of the UE from the second communication node；Certainly, the UE can also obtain the PRB of UE number from the first communication node.

Further, before the number that UE obtains the PRB that the second communication node distributes to the UE, the UE may be by sending the current PHR of the UE to the first communication node, to enable first communication node to meet first condition according to the PHR PRB determined number, the first condition is maximum transmit power of the summation no more than the predetermined UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers obtained according to the number of the PRB.

For example, the UE to the first communication node may send the current PHR of the UE by RRM.It is of course also possible to send by other means, the embodiment of the present invention is not limited.

Specifically, the number of the PRB is to be determined by the first communication node according to the UE PHR sent, wherein, first communication node determines that the specific method of the number of the PRB can be as follows：

Assuming that current be specifically in the ' ' subframe, then the number of the PRB can be determined according to the PHR, with reference to formula (8)： PUSCH_;C (0 = 10 ¹⁰- corpse_{0 PUSCH},_C ') - a_c ( j) - PL_cFormula（8) wherein, C represents corresponding carrier wave；^MpuscH,.(⁰Represent in subframe, the corresponding communication node of the carrier wave distributes to UE PRB number；^P.-Pusc .) represent up target power value, the i.e. up expectation performance number of the corresponding communication node of the carrier wave；^ represents descending path loss estimation；^α') large scale decline weight factor on the carrier wave is represented, it is the parameter determined according to the UE transmission mode that high level is configured, 0 or 1 or 2, different values, correspondence is different^P.— PuscH,.And a (7)_c(f)。 When calculating the number of the PRB, formula（8) PHR in is the known parameters carried in RRM measurement reports,^P。-PU_SC¾'）, α ') be UE according to high level configuration transmission mode and the parameter that determines, be pre-configured parameter, therefore according to formula（8) the individual numerical value of the PRB can be obtained.

By formula（8) formula is obtained after deforming（ 9 ):

The log of Calendar=10₁₀ ( _PUSCH;C()+corpse_{0 PUSC C} (j) + a_c (j) - PL_c) formula（9) by according to formula（And formula 9)（3) approximately, therefore after the PRB to be sent to first communication node second communication node, second communication node can send the number of the PRB¹^^¹^ gives the UE, the UE can be in the step 102 of embodiment one formula (3), obtain the 2nd PUSCH transmit powers, the 2nd PUSCH transmit powers measure the PHR approximately equals in the blunt announcements of ^ with the RRM, and to be the UE determine the PHR with reference to itself current power distribution situation, therefore it can ensure to be no more than the maximum transmit power of the UE with the first PUSCH transmit powers sum.

402nd, UE obtains the 2nd PUSCH transmit powers according to the number of the PRB.Specifically, numbers of the UE according to the PRB, the method for acquisition the 2nd PUSCH transmit powers refers to the formula in the step 102 of embodiment one（3), it is of the invention real certain, because the 2nd PUSCH transmit powers and the UE the first PUSCH transmit powers summation obtained are no more than the maximum transmit power of the UE, therefore the first PUSCH transmit powers and the 2nd PUSCH transmit powers need not be retracted, uplink power control process terminates for the time being.

Due in this step, used PRB number is determined according to the PHR current UE when obtaining the 2nd PUSCH transmit powers, and PHR is then the peak power that current UE can be distributed, therefore, because the first communication node knows the first PUSCH transmit powers, and the number that the second communication node distributes to UE PRB is that first communication node is determined according to the PHR, so, the certain maximum transmit power not over the UE of summation of the 2nd PUSCH transmit powers that UE is obtained according to the number of the PRB and the first transmit power.

The second communication node of UE acquisitions distributes to the PRB's of the UE in description based on above-described embodiment, a kind of ascending power control method provided in an embodiment of the present invention, this method Number, the number of the PRB is to be determined by first communication node according to the PHR of the UE, with reference to the analysis in step 401, the 2nd PUSCH transmit powers that the UE is obtained according to the PRB can ensure that the summation with the first PUSCH transmit powers is no more than the maximum transmit power of the UE, therefore avoid and frequently occur situation of the UE transmit power more than its specified maximum transmit power, and then UE power consumption can be reduced.

The embodiment of the present invention also provides a kind of ascending power control method, specifically as shown in Fig. 5, including：

501st, the first communication node receives the current PHR that UE sends the UE.

Specifically, the UE may correspond to a main serving cell, the multiple auxiliary serving cells of correspondence.During auxiliary serving cell is accessed, the UE can send RRM measurement reports to first communication node, the RRM measurement reports can carry reference signal strength (Reference Signal Receiving Powers of the UE for neighbouring cell,) and reference signal quality (Reference Signal Receiving Quality RSRP,), and the current PHR of the UE RSRQ.Wherein, the PHR is that the UE is determined with reference to itself current power distribution situation.

In the prior art, first communication node passes through the RSRP and the RSRQ, it may be determined that after the corresponding cell of the second communication node of addition is the auxiliary serving cell of the UE.A more technology of maturation is belonged in the prior art based on auxiliary serving cell access technology, therefore the embodiment of the present invention is not specifically addressed at this to the process that auxiliary serving cell is accessed.

502nd, the first communication node determines that the second communication node distributes to the PRB of UE number according to the PHR.

Wherein, the number of the PRB can meet first condition, and the first condition is maximum transmit power of the summation no more than the predetermined UE of-PUSCH transmit powers and the 2nd PUSCH transmit powers obtained according to the number of the PRB.

Specifically, first communication node determines that the method for the number of the PRB may be referred to the description of step 401, the embodiment of the present invention will not be repeated here.

503rd, the number of the PRB is sent to second communication node by the first communication node, so that the number of the PRB is sent to the UE by second communication node, the number of the PRB is used to obtain PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

The UE is sent to by second communication node, by the UE according to the PRB Number obtain the 2nd PUSCH transmit powers.

Specifically, after first communication node determines the number for the PRB that second communication node distributes to the UE, the number of the PRB is sent to second communication node by first communication node, wherein, the number of the PRB is sent to second communication node and can specifically included by first communication node：

First communication node sends a request message to second communication node, and the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node into the UE, wherein, the request message carries the number of the PRB.That is, it is sent in the request message that the PRB of second communication node number is carried in auxiliary serving cell access procedure.

Second communication node can carry the number of the PRB after the number of the PRB is received in the Power Control signaling for being sent to the UE, to cause the UE according to the number of the PRB, to obtain the 2nd PUSCH transmit powers.Certainly, with reference to the analysis of step 401, the 2nd PUSCH transmit powers are no more than the maximum transmit power of the UE with the first PUSCH transmit powers summation that the UE is obtained, therefore the UE need not retract to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, and uplink power control process terminates for the time being.

Description based on above-described embodiment, the embodiment of the present invention provides a kind of ascending power control method, first communication node described in this method receives the current PHR of the UE that UE is sent, then first communication node is according to the PHR, determine that the second communication node distributes to the PRB of UE number, and the number of the PRB is sent to second communication node, so that the number of the PRB is sent to the UE by second communication node.With reference to the analysis in step 401, the 2nd PUSCH transmit powers that the UE is obtained according to the PRB can ensure that the summation with the first PUSCH transmit powers is no more than the maximum transmit power of the UE, therefore the transmit power for frequently occurring UE can be avoided to exceed the situation of its specified maximum transmit power, and then UE power consumption can be reduced.

The embodiment of the present invention also provides a kind of ascending power control method, specifically as shown in Fig. 6, including：

601st, the second communication node obtains the number that second communication node distributes to UE PRB.

Wherein, the number of the PRB is to be determined by the first communication node according to the current PHR of the UE, to enable the number of the PRB to meet first condition, described first Condition is maximum transmit power of the summation no more than the predetermined UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers obtained according to the number of the PRB.

Specifically, the number that second communication node obtains the PRB can specifically include：

Specifically, first communication node determines that the method for the number of the PRB refers to the description of step 401 according to the current PHR of the UE, the embodiment of the present invention will not be repeated here.

602nd, the number of the PRB is sent to the UE by the second communication node, and the number of the PRB is used to obtain the 2nd PUSCH transmit powers.

Specifically, second communication node can carry the number of the PRB in the Power Control signaling for being sent to the UE, so that the number of the PRB is sent into the UE.Wherein, the control signaling that the Power Control signaling belongs in existing standard, for example, can be RRC signaling, and the embodiment of the present invention is not especially limited to this.

Certainly, the number of the PRB can also be issued to the UE ends by MAC CE, and the number that the embodiment of the present invention sends the PRB to second communication node is not especially limited to the mode of the UE.

It should be noted that detail can refer to the description of above-described embodiment in the embodiment of the present invention.Auxiliary serving cell can specifically include cell, and the description about cell refers to associated description in embodiment one or embodiment two, and the embodiment of the present invention will not be repeated here.

Description based on above-described embodiment, the embodiment of the present invention provides a kind of ascending power control method, and the second communication node described in this method obtains the number that second communication node distributes to UE PRB.Wherein, the number of the PRB is to be determined by first communication node according to the current PHR of the UE, then the number of the PRB is sent to the UE by second communication node, for the 2nd PUSCH transmit powers for making the UE be obtained according to the PRB, so as to ensure that the summation with the first PUSCH transmit powers is no more than the maximum transmit power of the UE, therefore the transmit power for frequently occurring UE can be avoided to exceed the situation of its specified maximum transmit power, and then UE power consumption can be reduced. Example IV,

The embodiment of the present invention provides a kind of ascending power control method, wherein, first communication node is the UE corresponding communication node of main serving cell, second communication node is the UE corresponding communication node of auxiliary serving cell, specifically, details in the embodiment of the present invention is referred to the description in above-described embodiment, will not be repeated here.

As shown in fig. 7, methods described includes：

701st, the first communication node sends the first Power Control signaling to the UE, wherein, the first Power Control signaling carries the first interference value and the first parameter, and first interference value is that the UE is sent to the interference that the PRB of first communication node is subject to.

Specifically, first parameter may be referred to the description in the step 102 of embodiment one.

702nd, UE receives the first Power Control signaling.

703rd, UE is according to formula（3) with first parameter in the first Power Control signaling, the first PUSCH transmit powers are obtained.

Specifically, UE is according to formula (3) and first parameter, the method for obtaining the first PUSCH transmit powers refers to embodiment one.

704th, the second communication node sends the second Power Control signaling to the UE, wherein, the second Power Control signaling carries the second interference value and the second parameter, and second interference value is that the UE is sent to the interference that the PRB of second communication node is subject to.

Specifically, second parameter may be referred to embodiment one.

705th, UE receives the second Power Control signaling.

706th, UE is according to formula（3) with second parameter, the 2nd PUSCH transmit powers are obtained.

If the 707, the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, UE retracts according to first interference value and second interference value to the first PUSCH transmit powers and the 2nd PUSCH transmit powers.

Exemplary, when=2, i.e., the number of described second communication node is 1, then according to formula（4) it can obtain, the first power back-off factors are_Wi(0 =—— ^Ρ ΜΑχ (ί)

A( g₂( + PpuSCHA (0 According to first power back-off factors and second power back-off factors, after being retracted respectively to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are respectively：

· (0

It should be noted that, if the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers is no more than the maximum transmit power of the UE, the first PUSCH transmit powers and the 2nd PUSCH transmit powers need not then be retracted, algorithm terminates.

Optionally, the embodiment of the present invention also provides a kind of ascending power control method, specifically as shown in figure 8, methods described includes：

801st, the first communication node sends the first Power Control signaling to the UE, wherein, the first Power Control signaling carries back-off scale factor and the first parameter, and the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors.

Specifically, first parameter may be referred to embodiment one.

802nd, UE receives the first Power Control signaling.

803rd, UE is according to formula（3) with first parameter, the PUSCH transmit powers of first communication node are obtained.

804th, the second communication node sends the second Power Control signaling to the UE, wherein, the second Power Control signaling carries the second parameter.

805th, UE receives the second Power Control signaling.

806th, UE is according to formula（3) with second parameter, the PUSCH transmit powers of second communication node are obtained.

If the 807, the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, UE sends work(according to the back-off scale factor to the first PUSCH transmit powers and the 2nd PUSCH Rate is retracted.

Specifically, UE is according to the back-off scale factor, the associated description of step 103 in embodiment one is referred to the method that the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted, the embodiment of the present invention will not be repeated here.

Certainly, after being retracted to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, PUSCH transmit powers of the UE in the ' ' subframe, each communication node correspondence carrier wave needs to meet formula（10), wherein, formula（10) it is as follows：

Σ Σ ^ (j) PpUSCH, (0≤(PCMAX (0-PPUCCH () formula（10) wherein ,≤k≤K, be the index number of first communication node and the second communication node, be first communication node and second communication node number and；Represent power back-off factors of the UE in subframe, carrier wave；Show PUSCH transmit powers of the UE in the ' ' subframe, carrier wave；(0 represents PUCCH transmit powers of the UE in the ' ' subframe to ^co/；^p(0 represents maximum transmit powers of the UE in subframe to C, and Λ represents linear value.

Optionally, the embodiment of the present invention also provides a kind of ascending power control method, wherein, first communication node is the UE corresponding communication node of main serving cell, second communication node is the UE corresponding communication node of auxiliary serving cell, specifically, the details in the embodiment of the present invention is referred to the description in above-described embodiment, it will not be repeated here.

As shown in figure 9, methods described includes：

901st, the first communication node sends the first Power Control signaling to the UE, wherein, the first Power Control signaling carries the first parameter.

902nd, UE receives the first Power Control signaling.

903rd, UE is according to formula（3) with first parameter, the first PUSCH transmit powers are obtained.

904th, the second communication node sends the second Power Control signaling to the UE, wherein, The second Power Control signaling carries back-off scale factor and the second parameter, and the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors.

Specifically, second parameter may be referred to embodiment one.

905th, UE receives the second Power Control signaling.

906th, UE is according to formula（3) with second parameter, the PUSCH transmit powers of second communication node are obtained.

It should be noted that the order in the present embodiment is only example, it is not used to limit the relation of each step, for example, step 901 903 can simultaneously be performed with step 904 906, can also successively performs.

If the 907, the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, UE retracts according to the back-off scale factor to the first PUSCH transmit powers and the 2nd PUSCH transmit powers.

Similar, after being retracted to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, PUSCH transmit powers of the UE on each communication node correspondence carrier wave needs to meet formula（10), the embodiment of the present invention will not be repeated here.

It should be noted that the number of second communication node may be one, it is also possible to be multiple, each second communication node is operated according to the present embodiment.The embodiment of the present invention is not especially limited to the number of second communication node, and the corresponding communication node of cell that UE auxiliary serving cell is added to by the main serving cell is regarded as the second communication node, it is adaptable to the embodiment of the present invention.Particularly, the auxiliary serving cell can specifically include cell, and the bright embodiment of this law is not especially limited to this.

Because the present embodiment is the specific descriptions to above-described embodiment, its technique effect that can be reached can also be with reference to foregoing description, and here is omitted.Embodiment five,

The embodiment of the present invention provides a kind of ascending power control method, wherein, first communication node is the corresponding communication node of main serving cell of the UE, second communication section Point is the corresponding communication node of auxiliary serving cell of the UE, specifically, the details in the embodiment of the present invention is referred to the description in above-described embodiment, be will not be repeated here.As shown in Figure 10, methods described includes：

1001st, UE sends the current PHR of the UE by RRM to the first communication node, and the PHR is used for the number for determining the PRB that the second communication node distributes to the UE.

1002nd, the PHR current UE of the first communication node reception UE transmissions.

1003rd, the first communication node determines that the second communication node distributes to the PRB of UE number according to the PHR.

1004th, the first communication node sends a request message to second communication node, the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node into the UE, wherein, the request message carries the number of the PRB.

1005th, the second communication node receives the request message, obtains the number of the PRB.

1006th, the second communication node sends the successful confirmation message of addition to first communication node.

Specifically, the corresponding cell of second communication node is added to after the auxiliary serving cell of the UE in first communication node, second communication node may send the successful confirmation message of addition to first communication node, to cause first communication node to determine that the auxiliary serving cell of the UE is added successfully.

It should be noted that step 1006 is optional step, second communication node may not also send the successful confirmation message of addition to first communication node, and the embodiment of the present invention is not especially limited to this.

Specifically, the detailed description of some steps refers to embodiment three in ascending power control method provided in an embodiment of the present invention, the embodiment of the present invention will not be repeated here.

Further, the corresponding cell of the second communication node is added to after the auxiliary serving cell of the UE in the first communication node, as shown in Fig. 11, methods described also includes：

1 101, first communication node sends the first Power Control signaling to the UE, wherein, the first Power Control signaling carries the first parameter.

1 102, UE receives the first Power Control signaling.

1 103, UE is according to formula（3) with first parameter, the first PUSCH transmit powers are obtained.

1 104, second communication node sends the second Power Control signaling to the UE, wherein, The second Power Control signaling carries the second parameter.

It should be noted that, the number for the PRB that the second communication node distributes to the UE is that the first communication node is determined according to the PHR current UE in second parameter in the embodiment of the present invention, is different from the number that the second communication node of the prior art distributes to the PRB of the UE.

1 105, UE receives the second Power Control signaling.

Specifically, because the second Power Control signaling carries the second parameter, so UE can obtain second parameter after the second Power Control signaling is received.

1 106, UE is according to formula（3) with second parameter, the 2nd PUSCH transmit powers are obtained.

Specifically, UE is according to formula (3) and second parameter, the method for obtaining the 2nd PUSCH transmit powers is referred in embodiment one shown in step 102, and the embodiment of the present invention will not be repeated here.

If 1 107, the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted.

Specifically, if the first PUSCH transmit powers and the 2nd PUSCH transmit powers summation exceed the maximum transmit power of the UE, the scheme for the back-off that can be then provided according to the scheme or embodiment one and embodiment two of prior art retracts to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the embodiment of the present invention is not construed as limiting to this, is also repeated no more.

Because the present embodiment is the specific descriptions to above-described embodiment, its technique effect that can be reached can also be with reference to foregoing description, and here is omitted.Embodiment six,

The device 1200 that the embodiment of the present invention is provided in a kind of uplink power control device 1200, the present embodiment can be used in performing the corresponding operating in above method embodiment.As shown in figure 12, described device 1200 includes acquiring unit 1201 and back-off unit 1202.

The acquiring unit 1201, for obtaining power back-off parameters.

The acquiring unit 1201, is additionally operable to obtain the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH sends work( Rate is PUSCH transmit powers of the UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, first communication node is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE, the power back-off parameters include back-off scale factor, wherein, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first power back-off factors are the power back-off factors that the UE is retracted to the first PUSCH transmit powers, second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUSCH transmit powers, or, the power back-off parameters include the first interference value and the second interference value, first interference value is that the UE is sent to the interference that the Physical Resource Block of first communication node is subject to, second interference value is that the UE is sent to the interference that the Physical Resource Block of second communication node is subject to.

The back-off unit 1202, if the first PUSCH transmit powers and the summation of the 2nd PUSCH transmit powers that are obtained for the acquiring unit 1201 exceed the maximum transmit power of the UE, first interference value and second interference value obtained according to the acquiring unit 1201 retracts to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, or, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to the back-off scale factor that the acquiring unit 1201 is obtained.

In a kind of implementation, as shown in figure 13, the back-off unit 1202 includes acquisition module 12021 and back-off module 12022.

The acquisition module 12021, for obtaining first power back-off factors and second power back-off factors respectively according to the back-off scale factor.

The back-off module 12022, first power back-off factors for being obtained according to the acquisition module 12021 retract to the first PUSCH transmit powers, and, the 2nd PUSCH transmit powers are retracted according to second power back-off factors that the acquisition module 12021 is obtained.

Further, the acquisition module 12021 specifically for obtaining first power back-off factors and second power respectively according to the back-off scale factor as follows Back-off factor：

Wherein,^WI represents first power back-off factors, ^ represents second power back-off factors, for the back-off scale factor, gi represents that the large scale of the UE to first communication node declines, represent that the large scale of the UE to second communication node declines, also, it is the integer more than 1.

Further, the acquisition module 1,202 1 specifically for obtaining first power back-off factors and second power back-off factors respectively according to the back-off scale factor as follows：

According to the back-off scale factor and equation below, first power back-off factors and second power back-off factors are obtained respectively： w_k g_l

^Wl^PUSCH,l + Σ ^WK PUSCH, k+^PUCCH=^MAX wherein, AMA_XRepresent the maximum transmit power of the UE；Represent the first PU SCH transmit powers；Represent the 2nd PUSCH transmit powers；_PUCCHRepresent the Physical Uplink Control Channel PUCCH transmit powers of the UE；, be first communication node and second communication node number and, also, K_≥1。

Optionally, in another implementation, as shown in Fig. 13, the back-off unit 1202 includes acquisition module 1,202 1 and back-off module 12022.

The acquisition module 1,202 1, for obtaining first power back-off factors and second power back-off factors respectively according to first interference value and second interference value.

The back-off module 12022, first power back-off factors for being obtained according to the acquisition module 1,202 1 retract to the first PUS CH transmit powers, and, the 2nd PU SCH transmit powers are retracted according to second power back-off factors that the acquisition module 1,202 1 is obtained. Further, the acquisition module 12021 specifically for obtaining first power back-off factors and second power back-off factors respectively according to first interference value and second interference value as follows：

I ¹k ρ ¹ CMAX

rPUSCH,k

Wherein, A={ 1 ..., K }, be first communication node and second communication node number and, also, K_≥2, the number of second communication node is -1;When=1, ^ represents first power back-off factors, represents first interference value；Represent that the large scale of the UE to first communication node declines；AMAX represents the maximum transmit power of the UE；Represent the first PUSCH transmit powers；When ≠ 1, ^ represents corresponding second power back-off factors of kth-l second communication nodes, represents corresponding second interference value of the second communication node；Represent that the large scale of the UE to kth-individual second communication node declines；AMAX represents the maximum transmit power of the UE；Represent the corresponding 2nd PUSCH transmit powers of second communication node of kth-l.In the present embodiment, the auxiliary serving cell includes cell.

Further, the acquiring unit 1201 specifically can be used for obtaining power back-off parameters as follows：

The second Power Control signaling that second communication node is sent is received, wherein, the second Power Control signaling carries the back-off scale factor. Specifically, referring to the description of embodiment one or example IV by the UE methods for carrying out back-off, the embodiment of the present invention is repeated no more to this.

Because the device 1200 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, and here is omitted.Embodiment seven,

The device 1400 that the embodiment of the present invention is provided in a kind of uplink power control device 1400, the present embodiment can be used in performing the corresponding operating in above method embodiment.As shown in figure 14, described device 1400 includes acquiring unit 1401 and transmitting element 1402.

The acquiring unit 1401, for obtaining power back-off parameters, wherein,

The power back-off parameters include back-off scale factor, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first power back-off factors are the power back-off factors that user terminal UE is retracted to the first Physical Uplink Shared Channel PUSCH transmit powers, second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, wherein, first communication node 1400 is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE；Or, first communication node 1400 is the corresponding communication node of auxiliary serving cell of the UE, and second communication node is the corresponding communication node of main serving cell of the UE.

Or,

The power back-off parameters include the first interference value, and first interference value is that the UE is sent to the interference that the Physical Resource Block of the first communication node is subject to；

The transmitting element 1402, for sending first interference value or the back-off scale factor of the acquisition of acquiring unit 1401 to the UE, wherein, if first interference value is used for the first PUSCH transmit powers and the 2nd PUSCH transmit powers Summation exceed the UE maximum transmit power, the UE retracts according to first interference value and the second interference value to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, second interference value is that the UE that the UE is obtained from second communication node is sent to the interference value that the Physical Resource Block of second communication node is subject to；Or, if the back-off scale factor is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the UE retracts according to back-off scale factor to the first PUSCH transmit powers and the 2nd PUSCH transmit powers.

Further, the transmitting element 1402 specifically for sending the interference value or the back-off scale factor of the acquisition of acquiring unit 1401 to the UE as follows:Transmit power control signaling gives the UE, wherein, the Power Control signaling carries the interference value；Or,

In the present embodiment, the auxiliary serving cell includes cell.

Specifically, the method for carrying out back-off by first communication node refers to the description of embodiment one or example IV, the embodiment of the present invention is repeated no more to this.

Because the device 1400 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, and here is omitted.Embodiment eight,

The embodiment of the present invention provides a kind of uplink power control device 1500, device 1500 in the present embodiment can be used in performing the corresponding operating in above method embodiment, specific as shown in figure 15, described device 1500 includes acquiring unit 1501, back-off unit 1502.

The acquiring unit 1501, for obtaining the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on the first communication node correspondence carrier wave, and the 2nd PUSCH transmit powers are PUSCHs of the UE on the second communication node correspondence carrier wave Transmit power, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE.

The back-off unit 1502, if the first PUSCH transmit powers and the summation of the 2nd PUSCH transmit powers that are obtained for the acquiring unit 1501 exceed the maximum transmit power of the UE, the first PUSCH transmit powers and the 3rd PUSCH transmit powers are retracted according to equation below：

^W ·

Wherein, l≤/≤, be the number of first community, the first community is the cell that is included in the auxiliary serving cell of the UE；0≤≤ M, M are the number of second community, and the second community is the auxiliary serving cell in addition to the first community that includes in the auxiliary serving cell of the UE；Chant, shows the first PUSCH transmit powers；^^^^ represents the 3rd PUSCH transmit powers, and the 3rd PUSCH transmit powers are the PUSCH transmit powers on second community correspondence carrier wave；W represents the power back-off factors that the UE is retracted to the first PUSCH transmit powers and the 3rd PUSCH transmit powers；Represent the maximum transmit power of the UE；Represent the Physical Uplink Control Channel PUCCH transmit powers of the UE；^PpuscH' the 4th PUSCH transmit powers are represented, the 4th PUSCH transmit powers are the PUSCH transmit powers on first community correspondence carrier wave.

Specifically, referring to the description of embodiment two by the UE methods for carrying out back-off, the embodiment of the present invention is repeated no more to this.

Because the device 1500 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, and here is omitted.Embodiment nine,

The embodiment of the present invention is provided in a kind of uplink power control device 1600, the present embodiment Device 1600 can be used in performing the corresponding operating in above method embodiment, and specific as shown in figure 16, described device 1600 includes acquiring unit 1601.

The acquiring unit 1601, for obtaining the number that the second communication node distributes to UE Physical Resource Block PRB, wherein, the number of the PRB be by the first communication node determined according to the current PHR of the UE after be sent to second communication node, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE.

The acquiring unit 1601, is additionally operable to the number according to the PRB, obtains PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

Further, as shown in figure 17, described device 1600 also includes transmitting element 1602.The transmitting element 1602, for before the number that the acquiring unit 1601 obtains the PRB that the second communication node distributes to the UE, the current PHR of the UE are sent to first communication node by RRM RRM, the PHR is used for the number for determining the PRB.

Further, the acquiring unit 1601 specifically for obtaining the number that the second communication node distributes to the PRB of the UE as follows：

In the present embodiment, the auxiliary serving cell includes cell.

Specifically, referring to the description of embodiment three or embodiment five by the UE methods for carrying out back-off, the embodiment of the present invention is repeated no more to this.

Because the device 1600 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, and here is omitted.Embodiment ten,

The embodiment of the present invention provides a kind of first communication node 1800, the first communication node 1800 in the present embodiment can be used in performing the corresponding operating in above method embodiment, specific as shown in figure 18, first communication node 1800 includes receiving unit 1801, determining unit 1802 and transmitting element 1803

The receiving unit 1801, the current PHR of the UE for receiving user terminal UE transmissions, wherein, first communication node 1800 is the corresponding communication node of main serving cell of the UE.

The determining unit 1802, for the PHR received according to the receiving unit 1801, determine that the second communication node distributes to the Physical Resource Block PRB of UE number, wherein, second communication node is the corresponding communication node of auxiliary serving cell of the UE.

The transmitting element 1803, the number of the PRB for the determining unit 1802 to be determined is sent to second communication node, so that the number of the PRB is sent to the UE by second communication node, the number of the PRB is used to obtain PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

Further, the determining unit 1802 determines that the second communication node distributes to the PRB of UE number specifically for the PHR received as follows according to the receiving unit：

^PUSCH, = 10(1) - o— H ) - _ε() wherein, C represents the corresponding carrier wave of second communication node； M_PUSQ^ represents that corresponding second communication node of the carrier wave distributes to UE PRB number； P_PUSai,_£(') represent up target power value, i.e., the up expectation performance number of corresponding second communication node of described carrier wave；^PRepresent descending path loss estimation；^α') represent large scale decline weight factor, 0 or 1 or 2

Further, the PRB of the transmitting element 1803 specifically for as follows determining determining unit number is sent to second communication node：

In the present embodiment, the auxiliary serving cell includes cell. Specifically, the method for carrying out back-off by first communication node refers to the description of embodiment three or embodiment five, the embodiment of the present invention is repeated no more to this.

Because first communication node 1800 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, and here is omitted.Embodiment 11,

The embodiment of the present invention provides a kind of second communication node 1900, the second communication node 1900 in the present embodiment can be used in performing the corresponding operating in above method embodiment, specific as shown in figure 19, second communication node 1900 includes acquiring unit 1901 and transmitting element 1902.

The acquiring unit 1901, for obtaining the number that second communication node 1900 distributes to user terminal UE Physical Resource Block PRB, wherein, the number of the PRB is to be determined by the first communication node according to the current PHR of the UE, wherein, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node 1900 is the corresponding communication node of auxiliary serving cell of the UE.

The transmitting element 1902, the number of the PRB for the acquiring unit 1901 to be obtained is sent to the UE, and the number of the PRB is used to obtain PUSCH transmit powers of the UE on second communication node 1900 correspondence carrier wave.

Further, the acquiring unit 1901 specifically for obtaining the number that second communication node distributes to user terminal UE PRB as follows：

The request message that first communication node is sent is received, the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node 1900 into the UE, wherein, the request message carries the number of the PRB.

Further, the PRB of the transmitting element 1902 specifically for as follows obtaining acquiring unit number is sent to the UE:

In the present embodiment, the auxiliary serving cell includes cell. Specifically, the method for carrying out back-off by second communication node refers to the description of embodiment three or embodiment five, the embodiment of the present invention is repeated no more to this.

Because second communication node 1900 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, and here is omitted.Embodiment 12,

The embodiment of the present invention provides a kind of user terminal UE2000, UE2000 in the present embodiment can be used in performing the corresponding operating in above method embodiment, specifically as shown in Figure 20, the UE2000 includes transmitter 2002, receiver 2003 and the memory 2004 coupled with processor 2001.

The processor 2001, for obtaining power back-off parameters, and

Obtain the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE2000 on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE2000 on the second communication node correspondence carrier wave, first communication node is the corresponding communication node of main serving cell of the UE2000, second communication node is the corresponding communication node of auxiliary serving cell of the UE2000, the power back-off parameters include back-off scale factor, wherein, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first power back-off factors are the power back-off factors that the UE2000 is retracted to the first PUSCH transmit powers, second power back-off factors are the power back-off factors that the UE2000 is retracted to the 2nd PUSCH transmit powers, or, the power back-off parameters include the first interference value and the second interference value, first interference value is that the UE2000 is sent to the interference that the Physical Resource Block of first communication node is subject to, second interference value is that the UE2000 is sent to the interference that the Physical Resource Block of second communication node is subject to.

The processor 2001, if being additionally operable to maximum transmit power of the summation more than the UE2000 of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, root The first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to first interference value and second interference value, or, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to the back-off scale factor.

In a kind of implementation, the processor 2001 according to the back-off scale factor to the first PUSCH transmit powers and the 2nd PUSCH transmit powers specifically for retracting as follows：

The first PUSCH transmit powers are retracted according to first power back-off factors, and, the 2nd PUSCH transmit powers are retracted according to second power back-off factors.

Further, the processor 2001 specifically for obtaining first power back-off factors and second power back-off factors respectively according to the back-off scale factor as follows：

Wherein,^WI represents first power back-off factors, ^ represents second power back-off factors, for the back-off scale factor, gi represents that the large scale of the UE2000 to first communication node declines, represent that the large scale of the UE2000 to second communication node declines, also, it is the integer more than 1.

According to the back-off scale factor and equation below, first power back-off factors and second power back-off factors are obtained respectively： Wherein, ^ represents the maximum transmit power of the UE2000 to+PpUCCH=CMAX； A_ra^ represents the first PUSCH transmit powers；^ represents the 2nd PUSCH transmit powers；_PUCCHRepresent the Physical Uplink Control Channel PUCCH transmit powers of the UE2000；^2≤K≤iC, K be first communication node and second communication node number and, also, K_≥In 2 another implementations, the processor 2001 according to first interference value and second interference value to the first PUSCH transmit powers and the 2nd PUSCH transmit powers specifically for retracting as follows：

Further, the processor 2001 also particularly useful for obtaining first power back-off factors and second power back-off factors respectively according to first interference value and second interference value as follows：

I k

Si

Wherein, A={ 1 ..., K }, be first communication node and second communication node number and, also, K_≥2, the number of second communication node is -1;

When=1, ^ represents first power back-off factors, represents first interference value；Represent that the large scale of the UE to first communication node declines；AMAX represents the maximum transmit power of the UE；Represent the first PUSCH transmit powers；When ≠ 1, ^ represents corresponding second power back-off factors of kth-l second communication nodes, represents that the second communication node is corresponding described second dry Disturb value；Represent that the large scale of the UE to -1 second communication node of kth declines；AMAX represents the maximum transmit power of the UE；Represent the corresponding 2nd PUSCH transmit powers of second communication node of kth-l.In the present embodiment, the auxiliary serving cell includes cell.

Further, the processor 2001 specifically for obtaining the power back-off parameters as follows：

The first Power Control signaling that first communication node is sent is received by the receiver 2003, wherein, the first Power Control signaling carries first interference value, and, receive the second Power Control signaling that second communication node is sent, wherein, the second Power Control signaling carries second interference value；Or,

The first Power Control signaling that first communication node is sent is received by the receiver 2003, wherein, the first Power Control signaling carries the back-off scale factor；Or

The second Power Control signaling that second communication node is sent is received by the receiver 2003, wherein, the second Power Control signaling carries the back-off scale factor.

Specifically, referring to the description of embodiment one or example IV by the UE2000 methods for carrying out back-off, the embodiment of the present invention is repeated no more to this.

Because the UE2000 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, and here is omitted.Embodiment 13,

The embodiment of the present invention provides a kind of first communication node 2100, the first communication node 2100 in the present embodiment can be used in performing the corresponding operating in above method embodiment, specific as shown in figure 21, first communication node 2100 includes processor 2101 and transmitter 2102.

The processor 2101, for obtaining power back-off parameters, wherein,

The power back-off parameters include back-off scale factor, and the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first work( Rate back-off factor is the power back-off factors that user terminal UE is retracted to the first Physical Uplink Shared Channel PUSCH transmit powers, second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on first communication node 2100 correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, wherein, first communication node 2100 is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE；Or, first communication node 2100 is the corresponding communication node of auxiliary serving cell of the UE, and second communication node is the corresponding communication node of main serving cell of the UE.

Or,

The power back-off parameters include the first interference value, and first interference value is that the UE is sent to the interference that the Physical Resource Block of first communication node 2100 is subject to；

The transmitter 2102, for sending first interference value or the back-off scale factor of the acquisition of processor 2101 to the UE, wherein, if first interference value is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the UE retracts according to first interference value and the second interference value to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, second interference value is that the UE that the UE is obtained from second communication node is sent to the interference value that the Physical Resource Block of second communication node is subject to；Or, if the back-off scale factor is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the UE retracts according to back-off scale factor to the first PUSCH transmit powers and the 2nd PUSCH transmit powers.

Further, the transmitter 2102 specifically for sending the interference value or the back-off scale factor of the acquisition of processor 2101 to the UE as follows:Transmit power control signaling gives the UE, wherein, the Power Control signaling carries the interference value；Or,

Transmit power control signaling gives the UE, wherein, the Power Control signaling carries institute State back-off scale factor.

In the present embodiment, the auxiliary serving cell includes cell.

Specifically, the method for carrying out back-off by first communication node 2100 refers to the description of embodiment one or example IV, the embodiment of the present invention is repeated no more to this.

Because first communication node 2100 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, and here is omitted.Embodiment 14,

The embodiment of the present invention provides a kind of user terminal UE2200, UE2200 in the present embodiment can be used in performing the corresponding operating in above method embodiment, specifically as shown in Figure 22, the UE2200 includes transmitter 2202, receiver 2203 and the memory 2204 coupled with processor 2201.

The processor 2201, is used for

Obtain the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE2200 on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE2200 on the second communication node correspondence carrier wave, first communication node is the corresponding communication node of main serving cell of the UE2200, and second communication node is the corresponding communication node of auxiliary serving cell of the UE2200.

If the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE2200, the first PUSCH transmit powers and the 3rd PUSCH transmit powers are retracted according to equation below：

^W ·

Wherein, i≤/≤, be the number of first community, the first community is the cell that is included in the auxiliary serving cell of the UE2200；, 0≤≤ M,_MFor the number of second community, the second community is the auxiliary serving cell in addition to the first community that is included in the auxiliary serving cell of the UE2200；Show that the first PUSCH sends work( Rate； u_{SC m}The 3rd pusCH transmit powers are represented, the 3rd PUSCH transmit powers are the PUSCH transmit powers on second community correspondence carrier wave；W represents the power back-off factors that the UE2200 is retracted to the first PUSCH transmit powers and the 3rd PUSCH transmit powers；Ware represents the maximum transmit power of the UE2200； pu_CCHRepresent the Physical Uplink Control Channel PUCCH transmit powers of the UE2200；^ppu_SavThe 4th PUSCH transmit powers are represented, the 4th PUSCH transmit powers are the PUSCH transmit powers on first community correspondence carrier wave.

Because the UE2200 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, and here is omitted.Embodiment 15,

The embodiment of the present invention provides a kind of user terminal UE2300, UE2300 in the present embodiment can be used in performing the corresponding operating in above method embodiment, specifically as shown in Figure 23, the UE2300 includes transmitter 2302, receiver 2303 and the memory 2304 coupled with processor 2301.

The processor 2301, is used for

Obtain the number that the second communication node distributes to the Physical Resource Block PRB of the UE2300, wherein, the number of the PRB be by the first communication node determined according to the current PHR of the UE2300 after be sent to second communication node, first communication node is the corresponding communication node of main serving cell of the UE2300, and second communication node is the corresponding communication node of auxiliary serving cell of the UE2300.

The processor 2301, is additionally operable to the number according to the PRB, obtains PUSCH transmit powers of the UE2300 on second communication node correspondence carrier wave.

Further, the transmitter 2302, for obtaining the in the processor 2301 Before number of the two communication node distributions to the PRB of the UE2300, the current PHR of the UE2300 are sent to first communication node by RRM RRM, the PHR is used for the number for determining the PRB.

Further, the processor 2301 specifically for obtaining the number that the second communication node distributes to the PRB of the UE2300 as follows：

The Power Control signaling that second communication node is sent is received by the receiver 2303, wherein, the Power Control signaling carries the number of the RRB.

In the present embodiment, the auxiliary serving cell includes cell.

Because the UE2300 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, and here is omitted.Embodiment 16,

The embodiment of the present invention provides a kind of first communication node 2400, the first communication node 2400 in the present embodiment can be used in performing the corresponding operating in above method embodiment, specific as shown in figure 24, first communication node 2400 includes receiver 2401, processor 2402 and transmitter 2403.

The receiver 2401, the current PHR of the UE for receiving user terminal UE transmissions, wherein, first communication node 2400 is the corresponding communication node of main serving cell of the UE.

The processor 2402, for the PHR received according to the receiver 2401, determine that the second communication node distributes to the Physical Resource Block PRB of UE number, wherein, second communication node is the corresponding communication node of auxiliary serving cell of the UE.

The transmitter 2403, the number of the PRB for the processor 2402 to be determined is sent to second communication node, so that the number of the PRB is sent to the UE by second communication node, the number of the PRB is used to obtain PUSCH transmit powers of the UE on second communication node correspondence carrier wave. Further, the processor 2402 determines that the second communication node distributes to the PRB of UE number specifically for the PHR received as follows according to the receiver 2401：

Further, the PRB of the transmitter 2403 specifically for as follows determining the processor 2402 number is sent to second communication node：

In the present embodiment, the auxiliary serving cell includes cell.

Specifically, the method for carrying out back-off by first communication node refers to the description of embodiment three or embodiment five, the embodiment of the present invention is repeated no more to this.

Because first communication node 2400 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, this

Embodiment 17,

The embodiment of the present invention provides a kind of second communication node 2500, the second communication node 2500 in the present embodiment can be used in performing the corresponding operating in above method embodiment, specific as shown in figure 25, second communication node 2500 includes the receiver 2502 and transmitter 2503 coupled with processor 2501 The processor 2501, for obtaining the number that second communication node 2500 distributes to user terminal UE Physical Resource Block PRB, wherein, the number of the PRB is to be determined by the first communication node according to the current PHR of the UE, wherein, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node 2500 is the corresponding communication node of auxiliary serving cell of the UE.

The transmitter 2503, the number of the PRB for the processor 2501 to be obtained is sent to the UE, and the number of the PRB is used to obtain PUSCH transmit powers of the UE on second communication node 2500 correspondence carrier wave.

Further, the processor 2501 specifically for obtaining the number that second communication node 2500 distributes to user terminal UE PRB as follows：

The request message that first communication node is sent is received by the receiver 2502, the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node 2500 into the UE, wherein, the request message carries the number of the PRB.

Further, the transmitter 2503 by the number for the PRB for obtaining the processor 2501 specifically for being sent to the UE as follows:

In the present embodiment, the auxiliary serving cell includes cell.

Specifically, the method for carrying out back-off by second communication node 2500 refers to the description of embodiment three or embodiment five, the embodiment of the present invention is repeated no more to this.

Because second communication node 2500 of the present embodiment can be used in performing the above method, therefore, it can be obtained technique effect can also be with reference to the description in above-described embodiment, and here is omitted.

It is apparent to those skilled in the art that, for convenience and simplicity of description, the device of foregoing description, only it is illustrated with the division of above-mentioned each functional module, in practical application, it can as needed and by above-mentioned functions distribute and be completed by different functional modules, i.e., the internal structure of device is divided into different functional modules, to complete all or part of function described above.The specific work process of the system of foregoing description, device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here. In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the module or unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.

The unit illustrated as separating component can be or may not be physically separate, the part shown as unit can be or may not be physical location, a place can be located at, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.

In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.

If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part or all or part of the technical scheme that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product is stored in a storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Or processor（Processor all or part of step of each embodiment methods described of the invention) is performed.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（ROM, Read-Only Memory), random access memory（RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.

It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims

Claims

1st, a kind of ascending power control method, it is characterised in that methods described includes：User terminal UE obtains power back-off parameters；

Obtain the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, first communication node is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE, the power back-off parameters include back-off scale factor, wherein, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first power back-off factors are the power back-off factors that the UE is retracted to the first PUSCH transmit powers, second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUSCH transmit powers, or, the power back-off parameters include the first interference value and the second interference value, first interference value is that the U E are sent to the interference that the Physical Resource Block of first communication node is subject to, second interference value is that the U E are sent to the interference that the Physical Resource Block of second communication node is subject to；And

If the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to first interference value and second interference value, or, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to the back-off scale factor.

2nd, the method according to claim 1, it is characterised in that described to be retracted according to the back-off scale factor to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, including：

First power back-off factors and second power back-off factors are obtained according to the back-off scale factor respectively；And

The first PUSCH transmit powers are retracted according to first power back-off factors, and, according to second power back-off factors to the 2nd PUSCH transmit powers Retracted.

3rd, method according to claim 2, it is characterised in that described that first power back-off factors and second power back-off factors are obtained according to the back-off scale factor respectively, including

According to the back-off scale factor and equation below, first power back-off factors and second power back-off factors are obtained respectively：

Wherein,^WI represents first power back-off factors, ^ represents second power back-off factors, for the back-off scale factor, gi represents that the large scale of the UE to first communication node declines, represent that the large scale of the UE to second communication node declines, also, it is the integer more than 1.

4th, according to the method in claim 2 or 3, it is characterised in that described that first power back-off factors and second power back-off factors are obtained according to the back-off scale factor respectively, including：

According to the back-off scale factor and equation below, first power back-off factors and second power back-off factors are obtained respectively：

^ K ^ ^

^W PUSCH , + ^j ^WWherein, ^ represents the maximum transmit power of the UE to k PUSCH, k+PUCCH=^MA；Represent the first PUSCH transmit powers；Represent the 2nd PUSCH transmit powers；_PUCCHRepresent the Physical Uplink Control Channel PUCCH transmit powers of the UE；, be first communication node and second communication node number and, also, K_≥2。

5th, the method according to claim 1, it is characterised in that described to be retracted according to first interference value and second interference value to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, including：

First power back-off factors and second power back-off factors are obtained according to first interference value and second interference value respectively； The first PUSCH transmit powers are retracted according to first power back-off factors, and, the 2nd PUSCH transmit powers are retracted according to second power back-off factors.

6th, method according to claim 5, it is characterised in that described that first power back-off factors and second power back-off factors are obtained according to first interference value and second interference value respectively, including：

According to first interference value, second interference value and equation below, institute is obtained respectively

State the first power back-off factors and second power back-off factors： Wherein, A={ 1 ..., K }, be first communication node and second communication node number and, also, >=2, the number of second communication node is -1;

When=1, ^ represents first power back-off factors, represents first interference value；＆ represents that the large scale of the UE to first communication node declines；^pc_MAX represents the maximum transmit power of the UE；Represent the first PUSCH transmit powers；

When ≠ 1, ^ represents corresponding second power back-off factors of second communication node of kth-l, represents corresponding second interference value of second communication node of kth-l；Represent that the large scale of the UE to kth-individual second communication node declines；AMAX represents the maximum transmit power of the UE；^ represents the corresponding 2nd PUSCH transmit powers of second communication node.

7th, the method according to any one of claim 1 to 6, it is characterised in that the auxiliary serving cell includes small cell.

8th, the method according to any one of claim 1 to 7, it is characterised in that the acquisition power back-off parameters include：

Receive the first Power Control signaling that first communication node is sent, wherein, the first Power Control signaling carries first interference value, and, receive the second Power Control signaling that second communication node is sent, wherein, the second Power Control signaling carries second interference value；Or,

The first Power Control signaling that first communication node is sent is received, wherein, described the One Power Control signaling carries the back-off scale factor；Or

The second Power Control signaling that second communication node is sent is received, wherein, the second Power Control signaling carries the back-off scale factor.

9th, a kind of ascending power control method, it is characterised in that methods described includes：First communication node obtains power back-off parameters, wherein,

The power back-off parameters include back-off scale factor, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first power back-off factors are the power back-off factors that user terminal UE is retracted to the first Physical Uplink Shared Channel PUSCH transmit powers, and second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUSCH transmit powers；

Or,

The power back-off parameters include the first interference value, and first interference value is that the UE is sent to the interference that the Physical Resource Block of first communication node is subject to；And

First interference value or the back-off scale factor are sent to the UE, wherein, if first interference value is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the UE retracts according to first interference value and the second interference value to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, second interference value is that the U E that the UE is obtained from second communication node are sent to the interference value that the Physical Resource Block of second communication node is subject to；

Or,

If the back-off scale factor is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the UE retracts according to back-off scale factor to the first PUSCH transmit powers and the 2nd PUSCH transmit powers；Wherein, the first PUSCH transmit powers are the UE in first communication section PUSCH transmit powers on point correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, wherein, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；Or, first communication node is the corresponding communication node of auxiliary serving cell of the UE, and second communication node is the corresponding communication node of main serving cell of the UE.

10th, method according to claim 9, it is characterised in that transmission first interference value or the back-off scale factor include to the UE：

Transmit power control signaling gives the UE, wherein, the Power Control signaling carries first interference value；Or,

Transmit power control signaling gives the UE, wherein, the Power Control signaling carries the back-off scale factor.

11st, the method according to claim 9 or 10, it is characterised in that the auxiliary serving cell includes small cell.

12nd, a kind of ascending power control method, it is characterised in that methods described includes：User terminal UE obtains the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；

If the summation of the first PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, the first PUSCH transmit powers and the 3rd PUSCH transmit powers are retracted according to equation below：

^W ·

Wherein, l≤/≤, be the number of first community, the first community is the cell that is included in the auxiliary serving cell of the UE； 0≤ ≤M ,_MFor the number of second community, the second community is includes in addition to the first community in the auxiliary serving cell of the UE Auxiliary serving cell；Chant, shows the first PUSCH transmit powers；^USCH represents the 3rd PUSCH transmit powers, and the 3rd PUSCH transmit powers are the PUSCH transmit powers on second community correspondence carrier wave；W represents the power back-off factors that the UE is retracted to the first PUSCH transmit powers and the 3rd PUSCH transmit powers；^^ represents the maximum transmit power of the UE；Represent the Physical Uplink Control Channel PUCCH transmit powers of the UE；^PpuscH' the 4th PUSCH transmit powers are represented, the 4th PUSCH transmit powers are the PUSCH transmit powers on first community correspondence carrier wave.

13rd, a kind of ascending power control method, it is characterised in that methods described includes：User terminal UE obtains the number that the second communication node distributes to the Physical Resource Block PRB of the UE, wherein, the number of the PRB be by the first communication node power headroom PHR current according to the UE determine after be sent to second communication node, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The UE obtains PUSCH transmit powers of the UE on second communication node correspondence carrier wave according to the number of the PRB.

14th, method according to claim 13, it is characterised in that the UE is obtained before the number for the PRB that the second communication node distributes to the UE, in addition to：

The UE sends the current PHR of the UE to first communication node, and the PHR is used for the number for determining the PRB.

15th, the method according to claim 13 or 14, it is characterised in that the UE obtains the number that the second communication node distributes to the Physical Resource Block PRB of the UE, including：The Power Control signaling that second communication node is sent is received, wherein, the Power Control signaling carries the number of the RRB.

16th, the method according to any one of claim 13 to 15, it is characterised in that the auxiliary serving cell includes small cell.

17th, a kind of ascending power control method, it is characterised in that methods described includes：First communication node receives the current power headroom of the UE that user terminal UE sends

PHR, wherein, first communication node is the corresponding communication of main serving cell of the UE Node；

First communication node determines that the second communication node distributes to the Physical Resource Block PRB of UE number according to the PHR, wherein, second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The number of the PRB is sent to second communication node by first communication node, so that the number of the PRB is sent to the UE by second communication node, the number of the PRB is used to obtain PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

18th, method according to claim 17, it is characterised in that first communication node determines that the second communication node distributes to the PRB of UE number according to the PHR, including：

First communication node determines that second communication node distributes to the PRB of UE number according to the PHR and equation below：Hide_c= 10( ) _ .- hide wherein, c represents the corresponding carrier wave of second communication node； M_{pusc £}Represent that corresponding second communication node of the carrier wave distributes to UE PRB number； P._PUSai,_£(') represent up target power value, i.e., the up expectation performance number of corresponding second communication node of described carrier wave；^pRepresent descending path loss estimation；^α') represent large scale decline the weight factor ,-^ ^ 2 of=0-^ ^ 1.

19th, the method according to claim 17 or 18, it is characterised in that the number of the PRB is sent to second communication node by first communication node to be included：

First communication node sends a request message to second communication node, the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node into the UE, wherein, the request message carries the number of the PRB.

20th, the method according to any one of claim 17 to 19, it is characterised in that the auxiliary serving cell includes small cell.

21st, a kind of ascending power control method, it is characterised in that methods described includes：Second communication node obtains the physics that second communication node distributes to user terminal U Ε Resource block PRB number, wherein, the number of the PRB is to be determined by the first communication node according to the current power headroom PHR of the UE, wherein, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The number of the PRB is sent to the UE by second communication node, and the number of the PRB is used to obtain PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

22nd, method according to claim 21, it is characterised in that second communication node obtains the number that second communication node distributes to the PRB of the UE, including：The request message that first communication node is sent is received, the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node into the UE, wherein, the request message carries the number of the PRB.

23rd, the method according to claim 21 or 22, it is characterised in that the number of the PRB is sent to the UE by second communication node, including：

Transmit power control signaling gives the UE, and the Power Control signaling carries the number of the RRB.

24th, the method according to any one of claim 21 to 23, it is characterised in that the auxiliary serving cell includes small cell.

25th, a kind of uplink power control device, it is characterised in that described device includes acquiring unit and back-off unit；

The acquiring unit, for obtaining power back-off parameters；

The acquiring unit, it is additionally operable to obtain the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit power of the user equipment (UE) on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, first communication node is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE, the power back-off parameters include back-off scale factor, wherein, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, described first Power back-off factors are the power back-off factors that the UE is retracted to the first PUSCH transmit powers, second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUSCH transmit powers, or, the power back-off parameters include the first interference value and the second interference value, first interference value is that the UE is sent to the interference that the Physical Resource Block of first communication node is subject to, and second interference value is that the U E are sent to the interference that the Physical Resource Block of second communication node is subject to；

The back-off unit, if obtained for the acquiring unit described first

The summation of PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, first interference value and second interference value obtained according to the acquiring unit retracts to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, or, the first PUSCH transmit powers and the 2nd PUSCH transmit powers are retracted according to the back-off scale factor that the acquiring unit is obtained.

26th, device according to claim 25, it is characterised in that the back-off unit includes acquisition module and back-off module；

The acquisition module, for obtaining first power back-off factors and second power back-off factors respectively according to the back-off scale factor；

The back-off module, first power back-off factors for being obtained according to the acquisition module retract to the first PUSCH transmit powers, and, the 2nd PUSCH transmit powers are retracted according to second power back-off factors that the acquisition module is obtained.

27th, device according to claim 26, it is characterised in that the acquisition module specifically for obtaining first power back-off factors and second power back-off factors respectively according to the back-off scale factor as follows：

According to the back-off scale factor and equation below, first power back-off factors and second power back-off factors are obtained respectively：

Wherein,^WI represents first power back-off factors, ^ represents second power back-off factors, for the back-off scale factor, gi represents that the large scale of the UE to first communication node declines, represents that the large scale of UE to second communication node declines Fall, also, be the integer more than 1.

28th, the device according to claim 26 or 27, it is characterised in that the acquisition module specifically for obtaining first power back-off factors and second power back-off factors respectively according to the back-off scale factor as follows：

According to the back-off scale factor and equation below, first power back-off factors and second power back-off factors are obtained respectively：

^WWherein, ^ represents the maximum transmit power of the UE to k PUSf H.k+PpUCCH=CMAX；Represent the first PUSCH transmit powers；^ represents the 2nd PUSCH transmit powers；_PUCCHRepresent the Physical Uplink Control Channel PUCCH transmit powers of the UE；, be first communication node and second communication node number and, also, K_≥2。

29th, device according to claim 25, it is characterised in that the back-off unit includes acquisition module and back-off module；

The acquisition module, for obtaining first power back-off factors and second power back-off factors respectively according to first interference value and second interference value；

The back-off module, first power back-off factors for being obtained according to the acquisition module retract to the first PUSCH transmit powers, and, the 2nd PUSCH transmit powers are retracted according to second power back-off factors that the acquisition module is obtained.

30th, device according to claim 29, characterized in that, the acquisition module specifically for obtaining first power back-off factors and second power back-off factors respectively according to first interference value and second interference value as follows：

According to first interference value, second interference value and equation below, institute is obtained respectively

State the first power back-off factors and second power back-off factors： Wherein, A={ 1 ..., K }, be first communication node and second communication node number and, also, Κ_≥2, the number of second communication node is -1;

When=1, ^ represents first power back-off factors, represents first interference value；＆ represents that the large scale of the UE to first communication node declines；^pc_MAX represents the maximum transmit power of the UE；Represent the first PUSCH transmit powers；

When ≠ 1, ^ represents corresponding second power back-off factors of second communication node of kth-l, represents corresponding second interference value of second communication node of kth-l；Represent that the large scale of the UE to kth-individual second communication node declines；AMAX represents the maximum transmit power of the UE；PPUSCHJ ^ show the corresponding 2nd PUSCH transmit powers of second communication node.

31st, the device according to any one of claim 25 to 30, it is characterised in that the auxiliary serving cell includes small cell.

32nd, the device according to any one of claim 25 to 31, it is characterised in that the acquiring unit specifically for obtaining power back-off parameters as follows：

Receive the first Power Control signaling that first communication node is sent, wherein, the first Power Control signaling carries first interference value, and, receive the second Power Control signaling that second communication node is sent, wherein, the second Power Control signaling carries second interference value；Or,

The first Power Control signaling that first communication node is sent is received, wherein, the first Power Control signaling carries the back-off scale factor；Or

The second Power Control signaling that second communication node is sent is received, wherein, the second Power Control signaling carries the back-off scale factor.

33rd, a kind of uplink power control device, it is characterised in that described device includes acquiring unit and transmitting element；

The acquiring unit, for obtaining power back-off parameters, wherein,

The power back-off parameters include back-off scale factor, the back-off scale factor is the ratio of the first power back-off factors and the second power back-off factors, first power back-off factors are the power back-off factors that user terminal UE is retracted to the first Physical Uplink Shared Channel PUSCH transmit powers, described Second power back-off factors are the power back-off factors that the UE is retracted to the 2nd PUSCH transmit powers；

Or,

The power back-off parameters include the first interference value, and first interference value is that the U E are sent to the interference that the Physical Resource Block of the first communication node is subject to；The transmitting element, for sending first interference value or the back-off scale factor of the acquiring unit acquisition to the UE, wherein, if first interference value is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the UE retracts according to first interference value and the second interference value to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, second interference value is that the UE that the UE is obtained from second communication node is sent to the interference value that the Physical Resource Block of second communication node is subject to；Or, if the back-off scale factor is used for maximum transmit power of the summation more than the UE of the first PUSCH transmit powers and the 2nd PUSCH transmit powers, the UE retracts according to back-off scale factor to the first PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, wherein, first communication node is the corresponding communication node of main serving cell of the UE, second communication node is the corresponding communication node of auxiliary serving cell of the UE；Or, first communication node is the corresponding communication node of auxiliary serving cell of the UE, and second communication node is the corresponding communication node of main serving cell of the UE.

34th, the device according to claim 33, it is characterised in that the transmitting element specifically for sending first interference value or the back-off scale factor of the acquiring unit acquisition to the UE as follows:

Transmit power control signaling gives the UE, wherein, the Power Control signaling carries first interference value；Or,

Transmit power control signaling gives the UE, wherein, the Power Control signaling carries the back-off scale factor. 35th, the device according to claim 33 or 34, it is characterised in that the auxiliary serving cell includes small cell.

36th, a kind of uplink power control device, it is characterised in that described device includes acquiring unit and back-off unit；

The acquiring unit, for obtaining the first Physical Uplink Shared Channel PUSCH transmit powers and the 2nd PUSCH transmit powers, wherein, the first PUSCH transmit powers are PUSCH transmit powers of the user terminal UE on the first communication node correspondence carrier wave, the 2nd PUSCH transmit powers are PUSCH transmit powers of the UE on the second communication node correspondence carrier wave, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；The back-off unit, if obtained for the acquiring unit described first

The summation of PUSCH transmit powers and the 2nd PUSCH transmit powers exceedes the maximum transmit power of the UE, and the first PUSCH transmit powers and the 3rd PUSCH transmit powers are retracted according to equation below：

^W ·

Wherein, l≤/≤, be the number of first community, the first community is the cell that is included in the auxiliary serving cell of the UE； 0≤ ≤ M ,_MFor the number of second community, the second community is the auxiliary serving cell in addition to the first community that is included in the auxiliary serving cell of the UE；Represent the first PUSCH transmit powers；^^^ represents the 3rd PUSCH transmit powers, and the 3rd PUSCH transmit powers are the PUSCH transmit powers on second community correspondence carrier wave；W represents the power back-off factors that the UE is retracted to the first PUSCH transmit powers and the 3rd PUSCH transmit powers；Represent the maximum transmit power of the UE；^ α represent the Physical Uplink Control Channel of the UE

PUCCH transmit powers；^PpuscH' the 4th PUSCH transmit powers are represented, the 4th PUSCH transmit powers are the PUSCH transmit powers on first community correspondence carrier wave.

37th, a kind of uplink power control device, it is characterised in that described device includes obtaining single Member；

The acquiring unit, for obtaining the number that the second communication node distributes to the Physical Resource Block PRB of user equipment (UE), wherein, the number of the PRB be by the first communication node power headroom PHR current according to the UE determine after be sent to second communication node, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the corresponding communication node of auxiliary serving cell of the UE；

The acquiring unit, is additionally operable to the number according to the PRB, obtains Physical Uplink Shared Channel PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

38th, the device according to claim 37, it is characterised in that described device also includes transmitting element；

The transmitting element, for before the number that the acquiring unit obtains the PRB that the second communication node distributes to the UE, the current PHR of the UE to be sent to first communication node, the PHR is used for the number for determining the PRB.

39th, the device according to claim 37 or 38, it is characterised in that the acquiring unit specifically for obtaining the number that the second communication node distributes to the PRB of the UE as follows：

The Power Control signaling that second communication node is sent is received, wherein, the Power Control signaling carries the number of the RRB.

40th, the UE according to any one of claim 37 to 39, it is characterised in that the auxiliary serving cell includes small cell.

41st, a kind of first communication node, it is characterised in that first communication node includes receiving unit, determining unit and transmitting element；

The receiving unit, the current power headroom PHR of the UE for receiving user terminal UE transmissions, wherein, first communication node is the corresponding communication node of main serving cell of the UE；

The determining unit, for the PHR received according to the receiving unit, determine that the second communication node distributes to the Physical Resource Block PRB of UE number, wherein, second communication node is the corresponding communication node of auxiliary serving cell of the UE； The transmitting element, the number of the PRB for the determining unit to be determined is sent to second communication node, so that the number of the PRB is sent to the UE by second communication node, the number of the PRB is used to obtain Physical Uplink Shared Channel PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

42nd, the first communication node according to claim 41, it is characterised in that the determining unit determines that the second communication node distributes to the PRB of UE number specifically for the PHR received as follows according to the receiving unit：

According to the PHR and equation below, determine that second communication node distributes to the PRB of UE number：Hide. = 10(1) - .- hide_H,_c Ο') - _c (j) · PL_cWherein, C represents corresponding carrier wave；^^ represents that the corresponding communication node of the carrier wave distributes to UE PRB number； P._PUSCH£(represent up target power value, i.e., the up expectation performance number of the corresponding communication node of described carrier wave；^PRepresent descending path loss estimation；^α') represent large scale decline weight factor ,=0 or 1 or 2.

43rd, the first communication node according to claim 41 or 42, it is characterised in that the PRB of the transmitting element specifically for as follows determining determining unit number is sent to second communication node：

Second communication node is sent a request message to, the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node into the UE, wherein, the request message carries the number of the PRB.

44th, the first communication node according to any one of claim 41 to 43, it is characterised in that the auxiliary serving cell includes small cell.

45th, a kind of second communication node, it is characterised in that second communication node includes acquiring unit and transmitting element；

The acquiring unit, for obtaining the number that second communication node distributes to user terminal UE Physical Resource Block PRB, wherein, the number of the PRB is to be determined by the first communication node according to the current PHR of the UE, wherein, first communication node is the corresponding communication node of main serving cell of the UE, and second communication node is the UE's The corresponding communication node of auxiliary serving cell；

The transmitting element, the number of the PRB for the acquiring unit to be obtained is sent to the UE, and the number of the PRB is used to obtain Physical Uplink Shared Channel PUSCH transmit powers of the UE on second communication node correspondence carrier wave.

46th, the second communication node according to claim 45, it is characterised in that the acquiring unit specifically for obtaining the number that second communication node distributes to user terminal UE PRB as follows：

The request message that first communication node is sent is received, the request message is used for the auxiliary serving cell for asking to be added to the corresponding cell of second communication node into the UE, wherein, the request message carries the number of the PRB.

47th, the second communication node according to claim 45 or 46, it is characterised in that the PRB of the transmitting element specifically for as follows obtaining acquiring unit number is sent to the UE:

Transmit power control signaling gives the UE, and the Power Control signaling carries the number of the RRB.

48th, the second communication node according to any one of claim 45 to 47, it is characterised in that the auxiliary serving cell includes small cell.