CN104168635B - A kind of ascending power control method and device - Google Patents
A kind of ascending power control method and device Download PDFInfo
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- CN104168635B CN104168635B CN201410381269.9A CN201410381269A CN104168635B CN 104168635 B CN104168635 B CN 104168635B CN 201410381269 A CN201410381269 A CN 201410381269A CN 104168635 B CN104168635 B CN 104168635B
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Abstract
The embodiment of the invention discloses a kind of ascending power control method and device, it is related to wireless communication field, to suppress interference of the serving cell of terminal in the prior art to neighbor cell.In the embodiment of the present invention, the signal strength for the neighbor cell that terminal that receiving terminal reports measures；The signal strength for the neighbor cell that signal emissive porwer and the terminal according to the neighbor cell is allocated to measure, determines the terminal to the path loss of the neighbor cell；According to the jamming margin of neighbor cell and the path loss determined, the maximum transmission power that terminal is allowed to is determined；The current transmission power of the maximum transmission power and terminal that are allowed to according to terminal, carries out uplink power control, so as to inhibit the serving cell of terminal to the interference of neighbor cell to terminal.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of ascending power control method and device.
Background technology
In LTE (Long Term Evolution, Long Term Evolution) system, uplink power control is wireless resource management
Important part and influence system performance and an important factor for capacity.The main purpose of uplink power control is compensation
Slowly varying, the interference of reduction adjacent area of channel circumstance.
Fig. 1 shows the flow diagram of ascending power control method of the prior art, as shown in Figure 1, current is upper
Row power control algorithm is mainly based upon target SINR (the Signal to Interference plus Noise of uplink
Ratio, Signal to Interference plus Noise Ratio) the transmitting power control of the uplink of UE (User Equipment, terminal) is controlled, it is led
Want process as follows：
Step 11：Base station obtains the actual emission power P of UETXActual reception power with the base station to the UE
Preceive, according to PTXAnd PreceiveDetermine that PL is lost in the up path of the UE to base stationUL, i.e. PLUL=PTX-Preceive, wherein,
PreceiveObtained by base station measurement, PTXPHR (Power Headroom Report, the power headroom reported by UE to base station
Report) in obtain.
Step 12：PL is lost according to the up path determined in base stationULIt is expected to receive work(with the uplink of preconfigured UE
Rate P0, determines uplink target received power Ptarget(R), i.e. Ptarget(R)=P0+ (α -1) × PLUL, wherein, α is path loss
Penalty coefficient, α and P0 pass through RRC (Radio Resource Control, radio resource control) signal deployment by upper strata.
Step 13：Base station is according to the uplink target received power P determinedtarget(R) and on each PRB it is expected what is be subject to
The total jamming power I+N of uplink, determines target SINR, i.e.,Wherein, the uplink interference bag that base station is subject to
Include the expected total jamming power I+N of uplink being subject on thermal noise interference N and external disturbance I, each PRB, and (I+N)=-
174dBm/Hz+10*log (180KHz)+NoiseFigure+IOT (Thr), wherein, NoiseFigure is noise figure, IOT
(Thr) it is the jamming margin of cell.
Step 14：Base station is compared the target SINR determined and the upstream sinr actually measured, according to comparing
As a result uplink power control is carried out.Specifically, base station carries out the target SINR determined and the upstream sinr actually measured
Compare, when the upstream sinr actually measured is more than the target SINR determined, produce the transmitting power control of lower adjusting power
(TPC) command word, for indicating that UE lowers transmission power；When the upstream sinr actually measured is less than or equal to the mesh determined
When marking SINR, the TPC command word of adjusting power in generation, for indicating that UE raises transmission power.
When the total jamming power of uplink that UE is in the fringe region or the serving cell of serving cell is higher, in order to ensure
The target SINR of the serving cell is, it is necessary to constantly raise the actual emission power of UE, when the transmission power of UE is excessive by up-regulation
When, very big interference can be caused to the neighbor cell of the serving cell where the UE.
The content of the invention
An embodiment of the present invention provides a kind of ascending power control method, to suppress the serving cell of terminal to adjacent small
The interference in area.
A kind of ascending power control method, including：
The signal strength for the neighbor cell that the terminal that receiving terminal reports measures；
The signal for the neighbor cell that signal emissive porwer and the terminal according to the neighbor cell is allocated to measure
Intensity, determines the terminal to the path loss of the neighbor cell；
According to the jamming margin of the neighbor cell and the path loss determined, the maximum that the terminal is allowed to is determined
Transmission power；
The current transmission power of the maximum transmission power and the terminal that are allowed to according to the terminal, to the terminal
Carry out uplink power control.
From such scheme as can be seen that the embodiment of the present invention is according to UE to the path loss of neighbor cell and this is adjacent small
The jamming margin IOT (Thr) in area, determines the maximum transmission power of the UE, and according to the maximum transmission power of UE to the upper of UE
Row power is constrained, since the serving cell where take into account UE when carrying out uplink power control produces neighbor cell
Interference caused by influence, it is logical when the total jamming power of uplink that UE be in the edge or the serving cell of serving cell is higher
Cross aforesaid way to constrain the ascending power of UE, reduce what serving cell produced neighbor cell compared with prior art
Uplink interference.
Preferably, the jamming margin according to the neighbor cell and the path loss determined, determine the terminal
The maximum transmission power being allowed to, including：According to the jamming margin of the neighbor cell, in the serving cell for determining the terminal
The maximum uplink interference general power allowed on per Physical Resource Block PRB；It is total according to the maximum uplink interference allowed on every PRB
Power, the number of neighbor cell set in advance, determine the maximum interference work(that the neighbor cell allows on every PRB
Rate；The maximum interference power and the path loss allowed according to the neighbor cell on every PRB, determines the terminal
The maximum transmission power being allowed on every PRB.In this way, measured in A3 metrical informations of the embodiment of the present invention based on terminal
Annoyance level of the serving cell arrived to neighbor cell, it is assumed that in the case that the neighbor cell may be subject to the interference of n cell,
(n is the number of neighbor cell set in advance) determines the maximum transmission power that terminal is allowed to, and dry based on neighbor cell
Disturb tolerance limit and calculate the maximum transmission power that the terminal is allowed to, avoid serving cell from unrestrictedly raising transmission power and to adjacent small
The interference that area produces.
Preferably, the maximum uplink interference general power allowed on every PRB, the formula are determined according to equation below one
One is：
(I+N)=- 174dBm/Hz+10*log (180KHz)+NoiseFigure+IOT (Thr)
Wherein, (I+N) is the maximum uplink interference general power allowed on every PRB, wherein, I is jamming power, and N makes an uproar for heat
Acoustical power, IOT (Thr) are the jamming margin of the neighbor cell, and NoiseFigure is noise figure；According to equation below two
Determine the maximum interference power that the neighbor cell allows on every PRB, the formula two is：P(neibor,receive)=(I
+ N) -10*log (X) wherein, P(neibor,receive)The maximum interference power allowed for the neighbor cell on every PRB, X
For the number of neighbor cell set in advance；Determine that the terminal is allowed to most on every PRB according to equation below three
Big transmission power, the formula three are：PTX(max)=P(neibor,receive)+PLneiborWherein, PTX(max) exist for the terminal
The maximum transmission power being allowed on every PRB, PLneiborFor the path loss.In this way, the embodiment of the present invention is based on eventually
Annoyance level of the serving cell measured in the A3 metrical informations at end to neighbor cell, it is assumed that the neighbor cell may be subject to n
In the case of the interference of a cell, (n is the number of neighbor cell set in advance) determines the emission maximum work(that terminal is allowed to
Rate, and the jamming margin based on neighbor cell calculates the maximum transmission power that the terminal is allowed to, and avoids serving cell unrestricted
The interference raised transmission power and produced to neighbor cell.
Preferably, the maximum transmission power being allowed to according to the terminal and the current transmitting work(of the terminal
Rate, carries out the terminal uplink power control, including：If the current ascending power of the terminal is allowed to more than the terminal
Maximum transmission power, it indicates that the terminal reduces current transmission power；If the current ascending power of the terminal is equal to institute
State the maximum transmission power that terminal is allowed to, it indicates that the terminal keeps current transmission power.In this way, root of the embodiment of the present invention
Calculate the maximum transmission power that the terminal is allowed to according to the jamming margin based on neighbor cell, the transmission power current to terminal into
Row ascending power adjusts, so as to reduce the interference in the whole network.
Preferably, before the signal strength for the neighbor cell that the terminal that receiving terminal reports measures, further
Including：Configure the measurement that the terminal carries out A3 events, and periodic report measurement report；The end that the receiving terminal reports
The signal strength of the neighbor cell measured is held, including：The A3 event measurement reports that the terminal reports are received, obtain the A3
The signal strength for the neighbor cell that the terminal carried in event measurement report measures.In this way, the embodiment of the present invention can be with
The configurating terminal cycle reports A3 measurement reports, realizes the signal strength for the neighbor cell that the reporting measurement of terminal periodic arrives
Process.
A kind of uplink power control device, the device include：
Receiving unit, the signal strength of the neighbor cell measured for the terminal that receiving terminal reports；
Computing unit, for the phase measured according to the signal emissive porwer of the neighbor cell and the terminal is allocated to
The signal strength of adjacent cell, determines the terminal to the path loss of the neighbor cell；According to the interference of the neighbor cell
Tolerance limit and the path loss determined, determine the maximum transmission power that the terminal is allowed to；
Uplink power control unit, it is current for the maximum transmission power being allowed to according to the terminal and the terminal
Transmission power, to the terminal carry out uplink power control.
From such scheme as can be seen that the embodiment of the present invention is according to UE to the path loss of neighbor cell and this is adjacent small
The jamming margin IOT (Thr) in area, determines the maximum transmission power of the UE, and according to the maximum transmission power of UE to the upper of UE
Row power is constrained, since the serving cell where take into account UE when carrying out uplink power control produces neighbor cell
Interference caused by influence, it is logical when the total jamming power of uplink that UE be in the edge or the serving cell of serving cell is higher
Cross aforesaid way to constrain the ascending power of UE, reduce what serving cell produced neighbor cell compared with prior art
Uplink interference.
Preferably, the computing unit is specifically used for：According to the jamming margin of the neighbor cell, the terminal is determined
The maximum uplink interference general power allowed in serving cell on every Physical Resource Block PRB；According to the maximum allowed on every PRB
Uplink interference general power, the number of neighbor cell set in advance, determine that the neighbor cell allows most on every PRB
Big jamming power；The maximum interference power and the path loss allowed according to the neighbor cell on every PRB, determines
The maximum transmission power that the terminal is allowed on every PRB.In this way, A3 measurement letter of the embodiment of the present invention based on terminal
Annoyance level of the serving cell measured in breath to neighbor cell, it is assumed that the neighbor cell may be disturbed be subject to n cell
In the case of, (n is the number of neighbor cell set in advance) determines the maximum transmission power that terminal is allowed to, and based on adjacent
The jamming margin of cell calculates the maximum transmission power that the terminal is allowed to, avoid serving cell unrestrictedly raise transmission power and
The interference produced to neighbor cell.
Preferably, the computing unit is specifically used for：Determined according to equation below one in the maximum often allowed on PRB
Row interference general power, the formula one are：(I+N)=- 174dBm/Hz+10*log (180KHz)+NoiseFigure+IOT
(Thr) wherein, (I+N) is the maximum uplink interference general power allowed on every PRB, wherein, I is jamming power, and N is thermal noise work(
Rate, IOT (Thr) are the jamming margin of the neighbor cell, and NoiseFigure is noise figure；Determined according to equation below two
The maximum interference power that the neighbor cell allows on every PRB, the formula two are：P(neibor,receive)=(I+N)-
10*log (X) wherein, P(neibor,receive)The maximum interference power allowed for the neighbor cell on every PRB, X is institute
State the number of neighbor cell set in advance；Determine that the terminal is allowed to most on every PRB according to equation below three
Big transmission power, the formula three are：PTX(max)=P(neibor,receive)+PLneiborWherein, PTX(max) exist for the terminal
The maximum transmission power being allowed on every PRB, PLneiborFor the path loss.In this way, the embodiment of the present invention is based on eventually
Annoyance level of the serving cell measured in the A3 metrical informations at end to neighbor cell, it is assumed that the neighbor cell may be subject to n
In the case of the interference of a cell, (n is the number of neighbor cell set in advance) determines the emission maximum work(that terminal is allowed to
Rate, and the jamming margin based on neighbor cell calculates the maximum transmission power that the terminal is allowed to, and avoids serving cell unrestricted
The interference raised transmission power and produced to neighbor cell.
Preferably, the uplink power control unit is specifically used for, if the current ascending power of the terminal be more than it is described
The maximum transmission power that terminal is allowed to, it indicates that the terminal reduces current transmission power；If the current uplink of the terminal
Power is equal to the maximum transmission power that the terminal is allowed to, it indicates that the terminal keeps current transmission power.In this way, this hair
Bright embodiment calculates the maximum transmission power that the terminal is allowed to according to the jamming margin based on neighbor cell, current to terminal
Transmission power carries out ascending power adjustment, so as to reduce the interference in the whole network.
Preferably, which further includes：Dispensing unit, the terminal for being reported in receiving terminal measure adjacent
Before the signal strength of cell, the measurement that the terminal carries out A3 events, and periodic report measurement report are configured；It is described to receive list
Member is additionally operable to, and receives the A3 event measurement reports that the terminal reports, obtain carried in the A3 event measurement reports it is described
The signal strength for the neighbor cell that terminal measures.In this way, the embodiment of the present invention can report A3 to measure with the configurating terminal cycle
Report, realizes the process of the signal strength for the neighbor cell that the reporting measurement of terminal periodic arrives.
Brief description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the flow diagram of ascending power control method of the prior art；
Fig. 2 is a kind of flow diagram of ascending power control method provided in an embodiment of the present invention；
Fig. 3 is a kind of structure diagram of uplink power control device provided in an embodiment of the present invention.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing into
One step it is described in detail, it is clear that the described embodiment only a part of embodiment of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
All other embodiment, belongs to the scope of protection of the invention.
The embodiment of the present invention can be applied to LTE system framework, the uplink power control field being particularly suitable in LTE system
Scape.A3 events in the embodiment of the present invention are the Event A3 in LTE handover events, for representing when homogeneous-frequency adjacent-domain quality is higher than
During serving cell quality, when meeting that the event of this condition is reported, source base station (eNodeB) starts with frequency handover request.
Ascending power control method provided in an embodiment of the present invention is based on A3 affair information, is believed by A3 affairs
Breath judges the path loss of terminal position and neighbor cell, and the jamming margin IOT (Thr) also based on neighbor cell is calculated
The maximum transmission power allowed to the terminal by neighbor cell, it is seen then that the embodiment of the present invention utilizes above-mentioned constraints, to uplink
Power is controlled, and is avoided serving cell and is unrestrictedly raised transmission power and disturbed caused by neighbor cell, so as to reduce
Uplink interference between the whole network.
Fig. 2 shows a kind of ascending power control method provided in an embodiment of the present invention, as shown in Fig. 2, below to this hair
Bright embodiment is specifically described.
Step 21：The signal strength for the neighbor cell that the terminal that receiving terminal reports measures.
Preferably, before above-mentioned steps 21, the measurement that the terminal carries out A3 events, and periodic report measurement report are configured
Accuse；The signal strength for the neighbor cell that the terminal that the receiving terminal reports measures, including：The terminal is received to report
A3 event measurement reports, obtain the signal of the neighbor cell that the terminal carried in the A3 event measurement reports measures
Intensity.
During specific implementation, base station configurating terminal reports the A3 events for position measurement, and configurating terminal was carried out on the cycle
Report A3 event measurement reports.Base station receives the A3 event measurement reports that terminal is reported on the serving cell, obtains A3 affairs
The signal strength for the serving cell that the terminal carried in report measures and the signal strength of neighbor cell.It should be noted that
When meeting neighbor cell measurement condition and report condition, terminal just measured for the neighbor cell for meeting above-mentioned condition and
Report.
Step 22：The neighbor cell that signal emissive porwer and the terminal according to the neighbor cell is allocated to measure
Signal strength, determine the terminal to the path loss of the neighbor cell.
During specific implementation, base station can configure the signal emissive porwer of neighbor cell when adjacent section planning configures,
Obtain being allocated to the signal emissive porwer of these neighbor cells.
During specific implementation, during specific implementation, base station can launch the signal of neighbor cell strong when adjacent section planning configures
Degree is configured.The signal emissive porwer of neighbor cell is allocated to according to base station and terminal measures in above-mentioned steps 21
The neighbor cell signal strength, determine terminal to the path loss of the neighbor cell, i.e. PL(neibor)=
RSRP(neibor,eNB)-RSRP(neibor,UE)Wherein, PL(neibor)For the path loss determined, RSRP(neibor,eNB)For base station
It is allocated to the signal emissive porwer of the neighbor cell, RSRP(neibor,UE)The signal strength of the neighbor cell measured for terminal.
Step 23：According to the jamming margin of neighbor cell and the path loss determined, determine that the terminal is allowed to most
Big transmission power.
Preferably, in above-mentioned steps 23, according to the jamming margin of neighbor cell, in the serving cell for determining the terminal
The maximum uplink interference general power allowed on per Physical Resource Block PRB；It is total according to the maximum uplink interference allowed on every PRB
Power, the number of neighbor cell set in advance, determine the maximum interference work(that the neighbor cell allows on every PRB
Rate；The maximum interference power and the path loss allowed according to the neighbor cell on every PRB, determines the terminal
The maximum transmission power being allowed on every PRB.
Preferably, in above-mentioned steps 23, the maximum uplink for determining to allow on every PRB according to equation below one is done
General power is disturbed, the formula one is：(I+N)=- 174dBm/Hz+10*log (180KHz)+NoiseFigure+IOT (Thr) its
In, (I+N) be per the maximum uplink interference general power allowed on PRB, wherein, I is jamming power, and N is thermal noise power, IOT
(Thr) it is the jamming margin of the neighbor cell, NoiseFigure is noise figure；The phase is determined according to equation below two
The maximum interference power that adjacent cell allows on every PRB, the formula two are：P(neibor,receive)=(I+N) -10*log
(X) wherein, P(neibor,receive)The maximum interference power allowed for the neighbor cell on every PRB, X are to preset
Neighbor cell number；According to equation below three determine the terminal described per the maximum transmission power being allowed on PRB,
The formula three is：PTX(max)=P(neibor,receive)+PLneiborWherein, PTX(max) for the terminal described per on PRB
The maximum transmission power being allowed to, PLneiborFor the path loss.
During specific implementation, base station can carry out the jamming margin IOT (Thr) of neighbor cell when adjacent section planning configures
Configuration.According to the jamming margin IOT (Thr) of neighbor cell, determine on every Physical Resource Block PRB to allow in the serving cell of terminal
Maximum uplink interference general power, i.e. (I+N)=- 174dBm/Hz+10*log (180KHz)+NoiseFigure+IOT (Thr)
Wherein, (I+N) is the maximum uplink interference general power allowed on every PRB, and NoiseFigure is noise figure, and in the present invention
NoiseFigure=7 in embodiment, IOT (Thr) are the jamming margin of neighbor cell；Further, it is contemplated that the neighbor cell
It may be disturbed at the same time be subject to multiple cells, then P(neibor,receive)=(I+N) -10*log (X) wherein, P(neibor,receive)For
The maximum interference power that the neighbor cell allows on every PRB, (I+N) are the maximum uplink interference allowed on every PRB
General power, X is the number of neighbor cell set in advance, and the value range of the number of the neighbor cell set in advance is
0~5；Further, the maximum interference power that can be allowed according to the neighbor cell on every PRB and the path
Loss, determines the maximum transmission power that the terminal is allowed on every PRB, i.e. PTX(max)=P(neibor,receive)+
PLneiborWherein, PTX(max) maximum transmission power being allowed to for the terminal on every PRB, PLneiborFor by upper
State the path loss that step 22 is calculated.
Step 24：The current transmission power of the maximum transmission power and the terminal that are allowed to according to the terminal, to the end
End carries out uplink power control.
Preferably, in above-mentioned steps 24, if the current ascending power of the terminal is allowed to most more than the terminal
Big transmission power, it indicates that the terminal reduces current transmission power；If the current ascending power of the terminal is equal to the end
Hold the maximum transmission power being allowed to, it indicates that the terminal keeps current transmission power.
During specific implementation, base station judges the emission maximum that the current ascending power of terminal and the terminal are allowed by neighbor cell
The magnitude relationship of power, is controlled the ascending power of terminal according to judging result, i.e. if terminal it is current ascending power it is small
When the maximum transmission power that the terminal is allowed by neighbor cell, then according to the target SINR based on uplink in the prior art to end
The mode that the ascending power at end is controlled carries out uplink power control；If the current ascending power of terminal is more than the terminal by adjacent small
During the maximum transmission power that area allows, then base station instruction terminal degradation transmission power, specifically, base station can be sent to the terminal
The order of TPC command word δ=- 1, with instruction terminal degradation transmission power；If the current ascending power of terminal is equal to the terminal quilt
During the maximum transmission power that neighbor cell allows, then base station instruction terminal keeps current transmission power, specifically, base station can be to
The terminal sends the order of TPC command word δ=0, and current transmission power is kept with instruction terminal.
The specific cell (to be expressed as small a certain specific cell with assuming that there are 5 cells by the embodiment of the present invention below
Area S) generate interference exemplified by, to carry out uplink power control process be described in detail.
First, base station configures each cell of the BTS management.Base station is by each cell of the BTS management
Signal emissive porwer RSRP(neibor,eNB)15dBm is configured to, by the jamming margin IOT (Thr) of each cell of the BTS management
10dB is configured to, and noise figure NoiseFigure is arranged to 7dB.
Then, the A3 event measurement reports that base station receiving terminal reports, the serving cell that carried terminal measures in report
Signal strength RSRP(neibor,UE)=-80dBm, the signal strength RSRP of the cell S measured(neibor)=-85dBm.
In the embodiment of the present invention, interference of the serving cell to cell S is -85dBm where terminal, it is assumed that also there are 4 to deposit
In the cell of same disturbance, thus, it is supposed that X=5, can so obtain：The path loss of terminal to cell S are PL(neibor)=
RSRP(neibor,eNB)-RSRP(ceibor,UE)=15dB- (- 85dB)=- 100dBm, meanwhile, P(neibor,receive)=(I+N) -10*
Log (X)=- 174dBm/Hz+10*log (180KHz)+7dB+10dB-10*log (5)=- 111dBm so, PTX(max)=
P(neibor,receive)+PLneibor=(- 111dBm)+100dBm=-11dBm
The embodiment of the present invention may determine that the above-mentioned P being calculatedTX(max) with the current transmission power P of terminalTX(i)
Magnitude relationship, carries out uplink power control, i.e., to the terminal：
Work as PTX(max)<PTX(i) when, then uplink power control is carried out to terminal according to the prior art；
Work as PTX(max)>PTX(i) when, then TPC command word δ=- 1 is made；
Work as PTX(max)=PTX(i) when, then TPC command word δ=0 is made.
As it can be seen that the embodiment of the present invention is according to UE to the path loss of neighbor cell and the jamming margin of the neighbor cell
IOT (Thr), determines the maximum transmission power of the UE, and the ascending power of UE is carried out about according to the maximum transmission power of UE
Beam, caused by the interference produced due to the serving cell where take into account UE when carrying out uplink power control neighbor cell
Influence, it is right through the above way when the total jamming power of uplink that UE is in the edge or the serving cell of serving cell is higher
The ascending power of UE is constrained, and reduces the uplink interference that serving cell produces neighbor cell compared with prior art.This
The method that inventive embodiments provide, compared with existing uplink power control algorithm, the current positions of UE are with reference to when producing TPC command word
The uplink that the uplink transmission power of (i.e., it is contemplated that the path loss of UE to neighbor cell) and UE produces neighbor cell is put to do
Situation is disturbed, by being controlled the maximum transmission power of UE so as to the uplink inhibiting adjacent area and the whole network.
Based on identical technical concept, the embodiment of the present invention additionally provides a kind of ascending power that can be applied to above-mentioned flow
Control device.With reference to Fig. 3, which includes：
Receiving unit 31, the signal strength of the neighbor cell measured for the terminal that receiving terminal reports；
Computing unit 32, for according to being allocated to the signal emissive porwer of the neighbor cell and the terminal measures
The signal strength of neighbor cell, determines the terminal to the path loss of the neighbor cell；According to the dry of the neighbor cell
Tolerance limit and the path loss determined are disturbed, determines the maximum transmission power that the terminal is allowed to；
Uplink power control unit 33, works as the maximum transmission power being allowed to according to the terminal and the terminal
Preceding transmission power, uplink power control is carried out to the terminal.
Preferably, the computing unit 32 is specifically used for：According to the jamming margin of the neighbor cell, the terminal is determined
Serving cell in per Physical Resource Block PRB on the maximum uplink interference general power that allows；Allow most according on every PRB
Big uplink interference general power, the number of neighbor cell set in advance, determine what the neighbor cell allowed on every PRB
Maximum interference power；The maximum interference power and the path loss allowed according to the neighbor cell on every PRB, really
The maximum transmission power that the fixed terminal is allowed on every PRB.
Preferably, the computing unit 32 is specifically used for：The maximum for determining to allow on every PRB according to equation below one
Uplink interference general power, the formula one are：(I+N)=- 174dBm/Hz+10*log (180KHz)+NoiseFigure+IOT
(Thr) wherein, (I+N) is the maximum uplink interference general power allowed on every PRB, wherein, I is jamming power, and N is thermal noise work(
Rate, IOT (Thr) are the jamming margin of the neighbor cell, and NoiseFigure is noise figure；Determined according to equation below two
The maximum interference power that the neighbor cell allows on every PRB, the formula two are：P(neibor,receive)=(I+N)-
10*log (X) wherein, P(neibor,receive)The maximum interference power allowed for the neighbor cell on every PRB, X is pre-
The number of the neighbor cell first set；Determine that the maximum that the terminal is allowed on every PRB is sent out according to equation below three
Power is penetrated, the formula three is：PTX(max)=P(neibor,receive)+PLneiborWherein, PTX(max) for the terminal described
The maximum transmission power being allowed on per PRB, PLneiborFor the path loss.
Preferably, the uplink power control unit 33 is specifically used for, if the current ascending power of the terminal is more than institute
State the maximum transmission power that terminal is allowed to, it indicates that the terminal reduces current transmission power；If current upper of the terminal
Row power is equal to the maximum transmission power that the terminal is allowed to, it indicates that the terminal keeps current transmission power.
Preferably, which further includes：Dispensing unit, the terminal for being reported in receiving terminal measure adjacent
Before the signal strength of cell, the measurement that the terminal carries out A3 events, and periodic report measurement report are configured；It is described to receive list
Member 31 is additionally operable to, and is received the A3 event measurement reports that the terminal reports, is obtained the institute carried in the A3 event measurement reports
State the signal strength for the neighbor cell that terminal measures.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or square frame in journey and/or square frame and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices so that
A stream in flow chart can be achieved in the instruction performed by the computer or the processor of other programmable data processing devices
The function of being specified in journey or multiple flows and/or one square frame of block diagram or multiple square frames.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices provides the flow or multiple flows and/or block diagram that are used for realization in flow chart
A square frame or multiple square frames in specify function the step of.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these modification and variations.
Claims (8)
1. a kind of ascending power control method, it is characterised in that this method includes：
The signal strength for the neighbor cell that the terminal that receiving terminal reports measures；
The signal strength for the neighbor cell that signal emissive porwer and the terminal according to the neighbor cell is allocated to measure,
Determine the terminal to the path loss of the neighbor cell；
According to the jamming margin of the neighbor cell and the path loss determined, the emission maximum that the terminal is allowed to is determined
Power；
The current transmission power of the maximum transmission power and the terminal that are allowed to according to the terminal, carries out the terminal
Uplink power control；
Wherein, the jamming margin according to the neighbor cell and the path loss determined, determine that the terminal is allowed to
Maximum transmission power, including：
According to the jamming margin of the neighbor cell, determine on every Physical Resource Block PRB to allow in the serving cell of the terminal
Maximum uplink interference general power；
According to maximum uplink interference general power, the number of neighbor cell set in advance allowed on every PRB, determine described
The maximum interference power that neighbor cell allows on every PRB；
The maximum interference power and the path loss allowed according to the neighbor cell on every PRB, determines the end
Hold the maximum transmission power being allowed on every PRB.
2. the method as described in claim 1, it is characterised in that determine to allow most on every PRB according to equation below one
Big uplink interference general power, the formula one are：
(I+N)=- 174dBm/Hz+10*log (180KHz)+NoiseFigure+IOT (Thr)
Wherein, (I+N) is per the maximum uplink interference general power allowed on PRB, and I is jamming power, and N is thermal noise power, IOT
(Thr) it is the jamming margin of the neighbor cell, NoiseFigure is noise figure；
Determine the neighbor cell in the maximum interference power often allowed on PRB, the formula two according to equation below two
For：
P(neibor,receive)=(I+N) -10*log (X)
Wherein, P(neibor,receive)The maximum interference power allowed for the neighbor cell on every PRB, X are described advance
The number of the neighbor cell of setting；
Determine that the terminal is in the maximum transmission power being often allowed on PRB, the formula three according to equation below three：
PTX(max)=P(neibor,receive)+PLneibor
Wherein, PTX(max) maximum transmission power being allowed to for the terminal on every PRB, PLneiborFor the path
Loss.
3. the method as described in claim 1, it is characterised in that the maximum transmission power being allowed to according to the terminal with
And the transmission power that the terminal is current, uplink power control is carried out to the terminal, including：
If the current ascending power of the terminal is more than the maximum transmission power that the terminal is allowed to, it indicates that the terminal drop
Low current transmission power；
If the current ascending power of the terminal is equal to the maximum transmission power that the terminal is allowed to, it indicates that the terminal is protected
Hold current transmission power.
4. such as the method any one of claim 1-3, it is characterised in that in the terminal measurement that receiving terminal reports
Before the signal strength for the neighbor cell arrived, further comprise：
Configure the measurement that the terminal carries out A3 events, and periodic report measurement report；
The signal strength for the neighbor cell that the terminal that the receiving terminal reports measures, including：
The A3 event measurement reports that the terminal reports are received, the terminal carried in the A3 event measurement reports is obtained and surveys
The signal strength for the neighbor cell measured.
5. a kind of uplink power control device, it is characterised in that the device includes：
Receiving unit, the signal strength of the neighbor cell measured for the terminal that receiving terminal reports；
Computing unit, for according to be allocated to the signal emissive porwer of the neighbor cell and the terminal measure it is adjacent small
The signal strength in area, determines the terminal to the path loss of the neighbor cell；According to the jamming margin of the neighbor cell
With the path loss determined, the maximum transmission power that the terminal is allowed to is determined；
Uplink power control unit, the hair current for the maximum transmission power being allowed to according to the terminal and the terminal
Power is penetrated, uplink power control is carried out to the terminal；
Wherein, the computing unit is specifically used for, and according to the jamming margin of the neighbor cell, determines that the service of the terminal is small
The maximum uplink interference general power allowed in area on every Physical Resource Block PRB；Maximum uplink according to allowing on every PRB is done
General power, the number of neighbor cell set in advance are disturbed, determines the maximum interference that the neighbor cell allows on every PRB
Power；The maximum interference power and the path loss allowed according to the neighbor cell on every PRB, determines the end
Hold the maximum transmission power being allowed on every PRB.
6. device as claimed in claim 5, it is characterised in that the computing unit is specifically used for,
The maximum uplink interference general power for determining to allow on every PRB according to equation below one, the formula one are：
(I+N)=- 174dBm/Hz+10*log (180KHz)+NoiseFigure+IOT (Thr)
Wherein, (I+N) is per the maximum uplink interference general power allowed on PRB, and I is jamming power, and N is thermal noise power, IOT
(Thr) it is the jamming margin of the neighbor cell, NoiseFigure is noise figure；
Determine the neighbor cell in the maximum interference power often allowed on PRB, the formula two according to equation below two
For：
P(neibor,receive)=(I+N) -10*log (X)
Wherein, P(neibor,receive)The maximum interference power allowed for the neighbor cell on every PRB, X are described advance
The number of the neighbor cell of setting；
Determine that the terminal is in the maximum transmission power being often allowed on PRB, the formula three according to equation below three：
PTX(max)=P(neibor,receive)+PLneibor
Wherein, PTX(max) maximum transmission power being allowed to for the terminal on every PRB, PLneiborFor the path
Loss.
7. device as claimed in claim 5, it is characterised in that the uplink power control unit is specifically used for,
If the current ascending power of the terminal is more than the maximum transmission power that the terminal is allowed to, it indicates that the terminal drop
Low current transmission power；If the current ascending power of the terminal is equal to the maximum transmission power that the terminal is allowed to, refer to
Show that the terminal keeps current transmission power.
8. such as the device any one of claim 5-7, it is characterised in that the device further includes：
Dispensing unit, for before the signal strength for the neighbor cell that the terminal that receiving terminal reports measures, configuring
The terminal carries out the measurement of A3 events, and periodic report measurement report；
The receiving unit is additionally operable to, and is received the A3 event measurement reports that the terminal reports, is obtained the A3 affairs report
The signal strength for the neighbor cell that the terminal carried in announcement measures.
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| CN104619001B (en) * | 2014-12-29 | 2018-11-02 | 京信通信系统（中国）有限公司 | Base station ascending power control method and system |
| CN107277834B (en) * | 2016-04-07 | 2019-12-06 | 大唐移动通信设备有限公司 | Method and device for relieving uplink interference |
| WO2019028898A1 (en) * | 2017-08-11 | 2019-02-14 | 华为技术有限公司 | Power control method, network device and terminal device |
| CN109788538B (en) * | 2017-11-14 | 2021-06-22 | 华为技术有限公司 | Communication method and device |
| CN110401967B (en) * | 2018-04-25 | 2022-10-21 | 中国移动通信有限公司研究院 | Information processing method, device, base station and computer storage medium |
| CN111163488A (en) * | 2018-11-07 | 2020-05-15 | 中国移动通信集团四川有限公司 | Method, device and equipment for positioning cell interference source and computer storage medium |
| CN111294815B (en) * | 2018-12-06 | 2022-11-22 | 中国移动通信集团陕西有限公司 | Method and device for determining uplink limitation |
| CN113840363A (en) * | 2020-06-23 | 2021-12-24 | 中兴通讯股份有限公司 | Closed loop power control method, electronic device and storage medium |
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| CN102291811A (en) * | 2011-08-11 | 2011-12-21 | 大唐移动通信设备有限公司 | ULPC (uplink power control) method and device |
| CN103037488A (en) * | 2012-12-07 | 2013-04-10 | 北京北方烽火科技有限公司 | Control method for long term evolution (LTE) uplink power and associated equipment thereof |
| CN103945513A (en) * | 2014-04-01 | 2014-07-23 | 大唐移动通信设备有限公司 | Method and device for controlling power |
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| US7917164B2 (en) * | 2007-01-09 | 2011-03-29 | Alcatel-Lucent Usa Inc. | Reverse link power control |
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| CN102291811A (en) * | 2011-08-11 | 2011-12-21 | 大唐移动通信设备有限公司 | ULPC (uplink power control) method and device |
| CN103037488A (en) * | 2012-12-07 | 2013-04-10 | 北京北方烽火科技有限公司 | Control method for long term evolution (LTE) uplink power and associated equipment thereof |
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