CN102572927B - Method, device and system for base station power distribution - Google Patents
Method, device and system for base station power distribution Download PDFInfo
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- CN102572927B CN102572927B CN201010614666.8A CN201010614666A CN102572927B CN 102572927 B CN102572927 B CN 102572927B CN 201010614666 A CN201010614666 A CN 201010614666A CN 102572927 B CN102572927 B CN 102572927B
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Abstract
The invention discloses a method, a device and a system for base station power distribution, and aims to solve the problem that the turnover is low based on a base station power distribution method and a system of the prior art. The method comprises the following steps that: for each base station in the current system for power distribution, network side equipment determines the link gain of each mobile terminal corresponding to a base station according to the reference signal receiving power (RSRP) reported by the mobile terminal and the reference signal transmission power of the base station, and determines the power which each base station distributes to own each resource block when the throughput of the system is maximum according to the determined link gain of each base station in the system corresponding to each mobile terminal, and informs each base station to distribute corresponding power for own each resource block. In the embodiment of the invention, the power which each base station distributes to each resource block of the base station when the throughput of the system is maximum is determined according to the link gain of each base station in the system corresponding to each mobile terminal, so that the turnover of the system is improved.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to method, Apparatus and system that a kind of base station power distributes.
Background technology
OFDM (Orthogonal Frequency Division Multiplexing, OFDM) technology is as the best transmission technology of wireless system of future generation, improve greatly system spectral efficiency, effectively met the demand of growing amount of information for high-speed transfer speed.But, in frequency resource day by day deficient today, how to utilize existing resource, the throughput that improves base station becomes current study hotspot.
Traditional base station power distribution method is, for the each base station in system, is the identical power of each resource block assignments of this base station.The method realizes fairly simple, but in actual applications, due to the mobile terminal for cell edge, large scale path loss need to be resisted for the larger power of resource block assignments of this mobile terminal in this base station, and for the mobile terminal of center of housing estate, this base station need to be for the less power of the resource block assignments of this mobile terminal be to avoid that other mobile terminals are caused to interference, therefore for the each base station in system, for can causing the throughput of system, the method for the identical power of each resource block assignments of this base station declines.
In the prior art, adopt the method for fix power allocation to improve the throughput of system, be specially, for the each base station in system, the distribution of traffic in the community covering according to this base station, is the default different power of each Resource Block of this base station.But the method lacks enough flexibilities, in the time that the distribution of traffic in community changes, still can make the throughput of system decline.
Summary of the invention
In view of this, method, Apparatus and system that the embodiment of the present invention provides a kind of base station power to distribute, in order to solve based on base station power distribution method of the prior art, the low problem of throughput of system.
The method that a kind of base station power that the embodiment of the present invention provides distributes, comprising:
Network equipment, in the metrical information of the each mobile terminal reporting receiving, for the each base station in current system of carrying out power division, extracts each mobile terminal to Reference Signal Received Power RSRP value that should base station;
According to the reference signal transmission power level of this base station of preserving, and the each mobile terminal extracting is to RSRP value that should base station, determines that each mobile terminal is to link gain that should base station;
According to the link gain of the each base station in the corresponding described system of each mobile terminal of determining, while determining the throughput maximum of described system, each base station is the power of the each resource block assignments of self, and to notify each base station be the each resource block assignments corresponding power of self.
A kind of base station power assigned unit that the embodiment of the present invention provides, comprising:
Receiver module, for receiving the metrical information of each mobile terminal reporting;
Extraction module, for the metrical information at the each mobile terminal reporting receiving, for the each base station in current system of carrying out power division, extracts each mobile terminal to Reference Signal Received Power RSRP value that should base station;
The first determination module, for according to the reference signal transmission power level of this base station of preserving, and the each mobile terminal extracting is to RSRP value that should base station, determines that each mobile terminal is to link gain that should base station;
The second determination module, the link gain of each base station of the corresponding described system of each mobile terminal of determining for basis, while determining the throughput maximum of described system, the power of each resource block assignments that each base station is self;
Notification module is the each resource block assignments corresponding power of self for notifying each base station.
The system that a kind of base station power that the embodiment of the present invention provides distributes, comprising:
Network equipment, for the metrical information at the each mobile terminal reporting receiving, for the each base station in current system of carrying out power division, extract each mobile terminal to Reference Signal Received Power RSRP value that should base station, according to the reference signal transmission power level of this base station of preserving, and the each mobile terminal extracting is to RSRP value that should base station, determine that each mobile terminal is to link gain that should base station, according to the link gain of the each base station in the corresponding described system of each mobile terminal of determining, while determining the throughput maximum of described system, each base station is the power of the each resource block assignments of self, and to notify each base station be the each resource block assignments corresponding power of self,
Mobile terminal, for to described network equipment report measurement information.
A kind of method that the embodiment of the present invention provides base station power to distribute, Apparatus and system, the method network equipment is for the each base station in current system of carrying out power division, according to each mobile terminal reporting to RSRP that should base station, and the reference signal transmitting power of this base station, determine that each mobile terminal is to link gain that should base station, according to the link gain of the each base station in each mobile terminal correspondence system of determining, while determining the throughput maximum of system, each base station is the power of the each resource block assignments of self, and to notify each base station be the each resource block assignments corresponding power of self.Due in the embodiment of the present invention according to the link gain of the each base station in each mobile terminal correspondence system, determine the power of each resource block assignments that when throughput of system is maximum, each base station is self, therefore improved the throughput of system.
Brief description of the drawings
The process that the base station power that Fig. 1 provides for the embodiment of the present invention distributes;
Fig. 2 for the embodiment of the present invention provide taking adopt simulated annealing as example, base station power distribute detailed process;
The base station power assigned unit structural representation that Fig. 3 provides for the embodiment of the present invention;
The system configuration schematic diagram that the base station power that Fig. 4 provides for the embodiment of the present invention distributes.
Embodiment
Method, Apparatus and system that the embodiment of the present invention provides a kind of base station power to distribute, the method network equipment is for the each base station in current system of carrying out power division, according to each mobile terminal reporting to Reference Signal Received Power (Reference Signal Received Power that should base station, RSRP), and the reference signal transmitting power of this base station, determine that each mobile terminal is to link gain that should base station.According to the link gain of each base station in each mobile terminal correspondence system of determining, determine when the throughput of system is maximum, the power of each resource block assignments that each base station is self, and to notify each base station be the each resource block assignments corresponding power of self.Due in the embodiment of the present invention according to the link gain of the each base station in each mobile terminal correspondence system, determine the power of each resource block assignments that when throughput of system is maximum, each base station is self, therefore improved the throughput of system.
The process that the base station power that Fig. 1 provides for the embodiment of the present invention distributes, specifically comprises the following steps:
S101: network equipment, in the metrical information of the each mobile terminal reporting receiving, for the each base station in current system of carrying out power division, extracts each mobile terminal to RSRP value that should base station.
In embodiments of the present invention, the metrical information that network equipment mobile terminal receive reported according to the time interval of setting, this metrical information is the metrical information of the base station of its current affiliated subdistrict of mobile terminal measurement, and the metrical information of the base station of neighbor cell, wherein, network equipment comprises radio network controller or base station.This system comprises at least one base station, and network equipment is for the each base station in current system of carrying out power division, in the metrical information receiving, extracts each mobile terminal to RSRP value that should base station.
S102: according to the reference signal transmission power level of this base station of preserving, and the each mobile terminal extracting is to RSRP value that should base station, determines that each mobile terminal is to link gain that should base station.
Wherein, the process that network equipment obtains the reference signal transmission power level of this base station is, according to the identification information of this base station of carrying in the metrical information of each mobile terminal reporting, search the reference signal transmission power level to base station that should identification information, by the reference signal transmission power level finding, as the reference signal transmission power level of this base station obtaining.
S103: the link gain according to each mobile terminal of determining to the each base station in should system, while determining the throughput maximum of this system, each base station is the power of the each resource block assignments of self, and to notify each base station be the each resource block assignments corresponding power of self.
In said process, network equipment is for the each base station in current system of carrying out power division, determine that each mobile terminal is to link gain that should base station, link gain according to each mobile terminal to the each base station in should system, while determining the throughput maximum of this system, the power of each resource block assignments that each base station is self.Because each mobile terminal is that the metrical information reporting according to the time interval of setting according to each mobile terminal is determined to the link gain of the each base station in should system, therefore the base station power distribution method that the embodiment of the present invention provides can be according to the metrical information receiving, make flexibly each resource block assignments power that the each base station in this system is self, make the throughput maximum of this system, than the method for base station assigns power in prior art, improve the throughput of system.
In embodiments of the present invention, network equipment is for the each base station in current system of carrying out power division, determine that each mobile terminal is specially the process of link gain that should base station, for each mobile terminal, by the reference signal transmission power level of this base station, with the difference of the RSRP value of this mobile terminal respective base station, as this mobile terminal of determining to link gain that should base station.Be pl
i, m=P
rS, i-RSRP
i, m, wherein, pl
i, mfor m mobile terminal under i base station in this system is to link gain that should i base station, P
rS, ifor reference signal transmission power level corresponding to this i base station, RSRP
i, mfor this m mobile terminal is to RSRP value that should i base station.
In embodiments of the present invention, the power of each resource block assignments that network equipment can be self according to the each base station in this system, and the link gain of the corresponding each base station of the each mobile terminal of determining, determine and be specially the throughput of this system,
The power of the each resource block assignments that is self for the each base station in this system, adopts formula
calculate mobile terminal that current time uses this Resource Block signal to noise ratio (Signal to Interference plus Noise Ratio, SINR) on this Resource Block, wherein,
for the t moment, i.e. signal to noise ratio on r Resource Block of j the base station of current time mobile terminal m in this system,
for the power of this j base station this r resource block assignments that be self,
for using this mobile terminal m of r Resource Block of this j base station to link gain that should j base station,
for the power of r the resource block assignments that be this i base station of i base station in this system, wherein r Resource Block of this i base station uses identical carrier frequency with r Resource Block of this j base station,
for this mobile terminal m is to link gain that should i base station,
for other base stations in this system, to the co-channel interference that uses this mobile terminal m of r Resource Block of this j base station to produce, N is the noise power of preserving;
Adopt formula
calculate at t moment this mobile terminal m the throughput on r the Resource Block in this j base station, wherein, the carrier bandwidths that Δ f is each Resource Block;
Adopt formula
calculate the throughput of this system, wherein,
for the mobile terminal m under j base station in this system is in the service condition of r the Resource Block of t moment to this j base station, when this mobile terminal m is in the time that this t moment is used r Resource Block of this j base station,
otherwise
In embodiments of the present invention, network equipment is determined the throughput of this system according to said method, and adopt optimization algorithm to determine when the throughput of this system is maximum, the power of each resource block assignments that the each base station in this system is self, wherein, optimization algorithm comprises simulated annealing, genetic algorithm, Evolutionary Programming Algorithm and other optimization algorithms.
While determining the throughput maximum of this system with employing simulated annealing below, the process of the power of each resource block assignments that the each base station in this system is self.
While adopting simulated annealing to determine the throughput maximum of this system, each base station is that the process of the power of the each resource block assignments of self is specially, link gain according to each mobile terminal of determining to the each base station in should system, and the power of each base station each resource block assignments that is self, determine the first throughput of this system, wherein, for each base station, this base station is the maximum power that the power sum of the each resource block assignments of self is not more than this base station, adjust the power that each base station is the each resource block assignments of self, and the second throughput of definite this system, when the first throughput of this system that judgement is determined is less than this second throughput, using this second throughput as the first throughput, otherwise, poor according to the first throughput and the second throughput, determine that each base station is probability corresponding to power after self each resource block assignments is adjusted, power taking this probability after each resource block assignments is adjusted, determine that each base station is the power of the each resource block assignments of self, the throughput of this system that the power of the each resource block assignments that is self using each base station is corresponding is as the first throughput, in the time that the number of times of adjusting is not less than the first threshold of setting, or, power taking this probability after each resource block assignments is adjusted, determine that each base station is that the power of the each resource block assignments of self is the number of times of the power after non-adjustment, while being not less than the Second Threshold of setting, the power of the each resource block assignments that is self by current each base station, when maximum as the throughput of this system, each base station is the power of the each resource block assignments of self.And, can also pass through repeatedly above-mentioned calculating, while determining each throughput maximum of calculating this system, each base station is the corresponding power of the each resource block assignments of self, for each calculating, while selecting the throughput maximum of this system, the power of each resource block assignments that each base station is self.While employing simulated annealing being determined to the throughput maximum of this system with a specific embodiment below, the power of each resource block assignments that the each base station in this system is self is elaborated.
Annealing temperature initial value T is set, and T is any one number that is greater than 0, and for annealing temperature initial value, T carries out following steps:
A, for the each base station in this system, random is each resource block assignments power of this base station, wherein, for the power sum of each resource block assignments is not more than the maximum power of this base station, link gain according to each mobile terminal of determining to the each base station in should system, and each base station in this system is the power of the each resource block assignments of self at random, determine the first throughput F of this system;
The power of each resource block assignments that in B, set-up procedure A, each base station is self, be specially, for the each base station in this system, the power of the each resource block assignments that is self according to this base station, within the scope of the setting neighborhood of this power, be each Resource Block Random assignment power again;
C, link gain according to each mobile terminal of determining to the each base station in should system, and each base station in this system is the power of the each resource block assignments of self again, determines the second throughput F ' of this system;
D, establish Δ=F-F ', judge whether Δ is less than 0, if be less than, carry out step e, otherwise with probability exp (Δ/T) execution step E, with probability 1-exp (Δ/T) execution step F;
E, using F ' as F, by the power of the each resource block assignments that is self of the each base station after adjusting in step B, be the power of the each resource block assignments of self at random as each base station in steps A, and return to step B;
F, keep F constant, and keep each base station in steps A at random for the power of each resource block assignments of self is constant, return to step B;
G, when detecting that adjusting each base station in step B is that the adjustment number of times of the power of the each resource block assignments of self is while being not less than the first threshold of setting, or, in the time that the number of times of continuous execution step F is not less than the Second Threshold of setting, stop above-mentioned circulation, and export the power of each resource block assignments that current each base station is self, the power of the each resource block assignments that is self by current each base station, when maximum as this throughput of system under this initial value T, the power of each resource block assignments that each base station is self.
When by repeatedly calculating, determine when the throughput of this system is maximum, when the power of each resource block assignments that each base station is self, can adjust initial value T according to the decay factor k arranging, and adopt equally above-mentioned steps A～G repeatedly to calculate, wherein, k is greater than 0 Arbitrary Digit that is less than 1.Adjust the process of T according to k and be specially, establish T ' for the initial value after adjusting, the initial value T ' after adjustment corresponding to this each calculating in repeatedly calculating is not identical, calculates employing formula T '=k for this for the n time in repeatedly calculating
n-1t determines the initial value after the adjustment of calculating for this n time.This process of calculating for the n time in repeatedly calculating, during with above-mentioned this throughput of system maximum of determining under initial value T, each base station is that the process of power of the each resource block assignments of self is basic identical, just in the step D of said process, in the time judging that Δ is not less than 0, the probability of the probability of execution step E and execution step F is different, for example, in the time carrying out calculating for the n time, the initial value T '=k after adjustment
n-1t, in the step D of this n time calculating, if Δ is not less than 0, with probability exp (Δ/(k
n-1t)) execution step E, with probability 1-exp (Δ/(k
n-1t)) execution step F, other steps are constant, just do not repeat one by one here.
In the repeatedly calculating that said method carries out, each calculating can obtain corresponding result of calculation, this result of calculation is the power of each resource block assignments that corresponding each each base station of calculating is self, calculate respectively the throughput of this system corresponding to each result of calculation, in the result of calculation obtaining, select the result of calculation of the throughput maximum of this corresponding system, the power of each resource block assignments that to select each base station of throughput maximum that should system be self, when maximum as the throughput of this system, each base station is the power of the each resource block assignments of self.
For example, suppose that this system comprises s base station altogether, there is r Resource Block each base station, adopting said method to carry out altogether n time calculates, calculating for the first time corresponding initial value is T, decay factor is k, and the initial value calculating for the second time after corresponding adjustment is kT, and the initial value calculating for the third time after corresponding adjustment is k
2t, by that analogy; After carrying out calculating for n time, obtain altogether n result of calculation, be specially, the power of each resource block assignments that the each base station calculating is for the first time self is { P
1,1, P
1,2, L L P
1, s, wherein, P
1, sthe power of each resource block assignments that s base station in this system that represents to calculate is for the first time self, P
1, s={ P
1, s, 1, P
1, s, 2, L L, P
1, s, r, P
1, s, rthe power of r the resource block assignments that s base station in this system that represents to calculate is for the first time self, by that analogy, the power of each resource block assignments that the each base station calculating is for the second time self is { P
2,1, P
2,2, L L P
2, s, the power of each resource block assignments that the each base station calculating is for the third time self is { P
3,1, P
3,2, L L P
3, s; According to the n an obtaining result of calculation, calculate respectively the throughput of this system corresponding to each result of calculation, in n the result of calculation of supposing to obtain, the throughput maximum of this system corresponding to the result of calculation that calculates for the m time,, by this result of calculation calculating for the m time, be about to { P
m, 1, P
m, 2, L L P
m, s, when maximum as the throughput of this system, the power of each resource block assignments that each base station is self.
And the above-mentioned number of times repeatedly calculating can be set as required.For example, in order to be defined as accurately the power of each resource block assignments, make the throughput of this system reach maximum, can increase the above-mentioned number of times repeatedly calculating, and in order to improve while determining that the throughput of this system is maximum, each base station is the efficiency of the power of the each resource block assignments of self, can reduce the above-mentioned number of times repeatedly calculating.
In embodiments of the present invention, in order to ensure that each base station in this system provides the quality of service for mobile terminal, adopting simulated annealing, while determining the throughput maximum of this system, each base station is in the process of power of the each resource block assignments of self, the process of adjusting each base station and be the power of the each resource block assignments of self is specially, the power that each base station is the each resource block assignments of self is set, for each Resource Block of the each base station arranging, according to the power distributing on this Resource Block after arranging, determine the SINR of the mobile terminal that uses this Resource Block, judge whether definite SINR is not less than snr threshold corresponding to this Resource Block that current time is preserved, in the time that definite SINR is not less than snr threshold corresponding to this Resource Block that current time preserves, by the power distributing on this Resource Block after arranging, the power of this resource block assignments that is self as this base station of adjusting, otherwise reset.Below in conjunction with above-mentioned employing simulated annealing, determine the step B of the power of each resource block assignments that when throughput of this system is maximum, each base station is self, be that the process of the power of the each resource block assignments of self is elaborated to adjusting each base station.The process of this adjustment is specially, the power of the each resource block assignments that is self for the each base station in this system, the power of this resource block assignments that is self according to this base station, within the scope of the setting neighborhood of this power, be this Resource Block Random assignment power again, judgement is redistributed after power, use the SINR of the mobile terminal of this Resource Block whether to be less than the snr threshold corresponding to this Resource Block of current preservation, if be not less than, proceed subsequent step, otherwise readjust.
In embodiments of the present invention, provide the quality of service in order further to improve each base station in this system for mobile terminal, snr threshold corresponding to this Resource Block that current time is preserved is specially, according to the metrical information of the mobile terminal reporting of current this Resource Block of use, the mobile terminal that extracts current this Resource Block of use carrying in this metrical information is to Timing Advance that should base station, according to the Timing Advance extracting, determine that the mobile terminal of current this Resource Block of use is to the distance of this base station, according to definite distance, determine the region at the mobile terminal place of current this Resource Block of use, according to definite region, and snr threshold corresponding to each region of preserving, search snr threshold corresponding to this region, by this snr threshold finding, snr threshold corresponding to this Resource Block of preserving as current time.
For example, for the each base station in this system, the coverage of this base station is divided into 3 regions, be respectively: the first area that is less than R1 to the distance of this base station, be greater than to the distance of this base station the second area that R1 is less than R2, and be greater than the 3rd region of R2 to the distance of this base station, wherein R1 is less than R2, preserve the first snr threshold corresponding to this first area, the second snr threshold that second area is corresponding, the 3rd snr threshold that the 3rd region is corresponding, suppose according to the mobile terminal reporting of current this Resource Block of use to Timing Advance that should base station, determine that this mobile terminal is less than R2 to the distance of this base station for being greater than R1, the region of determining this mobile terminal place is second area, by the second corresponding this second area snr threshold, snr threshold corresponding to this Resource Block of preserving as current time.
Fig. 2 for the embodiment of the present invention provide taking adopt simulated annealing as example, base station power distribute detailed process, specifically comprise the following steps:
S201: network equipment, in the metrical information of the each mobile terminal reporting receiving, for the each base station in current system of carrying out power division, extracts each mobile terminal to RSRP value that should base station.
The RSRP value of the mobile terminal reporting that table 1 provides for the embodiment of the present invention.
| The value of reporting | Measuring range | Unit |
| RSRP_00 | RSRP＜-140 | dBm |
| RSRP_01 | -140≤RSRP＜-139 | dBm |
| RSRP_02 | -139≤RSRP＜-138 | dBm |
| ... | ... | ... |
| RSRP_95 | -46≤RSRP＜-45 | dBm |
| RSRP_96 | -45≤RSRP＜-44 | dBm |
| RSRP_97 | -44≤RSRP | dBm |
Table 1
As can be seen from Table 1, when measure be less than-140dBm of RSRP value time, the RSRP value of mobile terminal reporting is 00, when measure be more than or equal to-44dBm of RSRP value time, the RSRP value of mobile terminal reporting is 97, in the time that the RSRP value of measuring is between arrive-44dBm of-140dBm, the every increase of the RSRP value 1dBm of measurement, the RSRP value of mobile terminal reporting is with regard to corresponding increase by 1.
S202: according to the reference signal transmission power level of this base station of preserving, and the each mobile terminal extracting is to RSRP value that should base station, determines that each mobile terminal is to link gain that should base station.
S203: according to the annealing temperature initial value T arranging, for the each base station in this system, random is each resource block assignments power of this base station, wherein, for the power sum of each resource block assignments is not more than the maximum power of this base station, link gain according to each mobile terminal of determining to the each base station in should system, and each base station in this system is the power of the each resource block assignments of self at random, determines the first throughput F of this system.
S204: adjust the power distributing on each Resource Block of each base station, be specially, for the each base station in this system, the power of the each resource block assignments that is self according to this base station, within the scope of the setting neighborhood of this power, again be each Resource Block Random assignment power, link gain according to each mobile terminal of determining to the each base station in should system, and each base station in this system is the power of the each resource block assignments of self again, determine the second throughput F ' of this system.
S205: establish Δ=F-F ', judge whether Δ is less than 0, if be less than, carry out step S206, otherwise carry out step S206 with probability exp (Δ/T), carry out step S207 with probability 1-exp (Δ/T).
S206: using F ' as F, the power of the each resource block assignments that is self by the each base station after adjusting, is the power of the each resource block assignments of self as each base station at random, by the number of times that carries out continuously step S207 clear 0 of preserving.
S207: keep F constant, and keep each base station in step S203 at random for the power of each resource block assignments of self is constant, the number of times that carries out continuously step S207 of preserving is added to 1.
S208: whether the number of times that step S207 is carried out in judgement is continuously not less than the Second Threshold of setting, if be not less than, carries out step S210, otherwise carries out step S209.
S209: whether the adjustment number of times that judges the power distributing on each Resource Block of adjusting each base station is not less than the first threshold of setting, if be not less than, carries out step S210, otherwise returns to step S204.
S210: the power of the each resource block assignments that is self by current each base station, as result of calculation output, and adds 1 by the number of times of the output result of calculation of preservation.
S211: judge that whether the number of times of output result of calculation reaches the number of times of setting, if so, carries out step S212, otherwise carries out step S213.
S212: in the result of calculation of each output, select the result of calculation of the throughput maximum of this corresponding system, when throughput using the result of calculation of selecting as this system is maximum, the power of each resource block assignments that each base station is self.
S213: adjust annealing temperature initial value T according to the decay factor k preserving, the value after adjusting, as the annealing temperature initial value arranging, is returned to step S203.
S214: notifying each base station is the corresponding power of each resource block assignments of self.
Wherein, in step S204, for being the power of each Resource Block Random assignment again, the SINR that meets the mobile terminal that uses this Resource Block is not less than snr threshold corresponding to this Resource Block that current time is preserved.
In said process, network equipment is for the each base station in current system of carrying out power division, determine that each mobile terminal is to link gain that should base station, link gain according to each mobile terminal to the each base station in should system, while determining the throughput maximum of this system, each base station is the power of the each resource block assignments of self, because each mobile terminal is that the metrical information reporting according to the time interval of setting according to each mobile terminal is determined to the link gain of the each base station in should system, therefore the base station power distribution method that the embodiment of the present invention provides can be according to the metrical information receiving, make flexibly each resource block assignments power that the each base station in this system is self, make the throughput maximum of this system, than the method for base station assigns power in prior art, improve the throughput of system.
Fig. 3 is the base station power assigned unit structural representation that the embodiment of the present invention provides, and specifically comprises:
Receiver module 301, for receiving the metrical information of each mobile terminal reporting;
Extraction module 302, for the metrical information at the each mobile terminal reporting receiving, for the each base station in current system of carrying out power division, extracts each mobile terminal to Reference Signal Received Power RSRP value that should base station;
The first determination module 303, for according to the reference signal transmission power level of this base station of preserving, and the each mobile terminal extracting is to RSRP value that should base station, determines that each mobile terminal is to link gain that should base station;
The second determination module 304, the link gain of each base station of the corresponding described system of each mobile terminal of determining for basis, while determining the throughput maximum of described system, the power of each resource block assignments that each base station is self;
Notification module 305 is the each resource block assignments corresponding power of self for notifying each base station.
Described the first determination module 303 specifically for, according to the identification information of this base station of carrying in the metrical information of each mobile terminal reporting, search the reference signal transmission power level to base station that should identification information, by the reference signal transmission power level finding, as the reference signal transmission power level of this base station obtaining.
Described the first determination module 303 specifically for, for each mobile terminal, by the reference signal transmission power level of this base station, with the difference of this mobile terminal to RSRP value that should base station, as this mobile terminal of determining to link gain that should base station.
Described the second determination module 304 specifically for, according to the link gain of the each base station in the corresponding described system of each mobile terminal of determining, and the power of each base station each resource block assignments that is self, determine the first throughput of described system, wherein, for each base station, the power sum of each resource block assignments that this base station is self is not more than the maximum power of this base station.Adjust the power that each base station is the each resource block assignments of self, and the second throughput of definite described system, when the first throughput of the described system that judgement is determined is less than the second throughput, using this second throughput as the first throughput, otherwise, poor according to the first throughput and the second throughput, determine that each base station is probability corresponding to power after self each resource block assignments is adjusted, power taking this probability after each resource block assignments is adjusted, determines that each base station is the power of the each resource block assignments of self.The throughput of the described system that the power of the each resource block assignments that is self using each base station is corresponding is as the first throughput, in the time that the number of times of adjusting is not less than the first threshold of setting, or, power taking this probability after each resource block assignments is adjusted, determine that each base station is that the power of the each resource block assignments of self is the number of times of the power after non-adjustment, while being not less than the Second Threshold of setting, the power of the each resource block assignments that is self by current each base station, when maximum as the throughput of described system, each base station is the power of the each resource block assignments of self.
Described the second determination module 304 also for, by repeatedly calculating, while determining the throughput maximum of each described system of calculating, each base station is the corresponding power of the each resource block assignments of self, for each calculating, while selecting the throughput maximum of described system, the power of each resource block assignments that each base station is self.
Described the second determination module 304 specifically for, the power that each base station is the each resource block assignments of self is set, for each Resource Block of the each base station arranging, according to the power distributing on this Resource Block after arranging, determine the signal to noise ratio SINR of the mobile terminal that uses this Resource Block, judge whether definite SINR is not less than snr threshold corresponding to this Resource Block that current time is preserved, in the time that definite SINR is not less than snr threshold corresponding to this Resource Block that current time preserves, by the power distributing on this Resource Block after arranging, the power of this resource block assignments that is self as this base station of adjusting, otherwise reset.
Described the second determination module 304 specifically for, according to the metrical information of the mobile terminal reporting of current this Resource Block of use, the mobile terminal that extracts current this Resource Block of use carrying in this metrical information is to Timing Advance that should base station, according to the Timing Advance extracting, determine that the mobile terminal of current this Resource Block of use is to the distance of this base station, according to definite distance, determine the region at the mobile terminal place of current this Resource Block of use, according to definite region, and snr threshold corresponding to each region of preserving, search snr threshold corresponding to this region, by this snr threshold finding, snr threshold corresponding to this Resource Block of preserving as current time.
The system configuration schematic diagram that the base station power that Fig. 4 provides for the embodiment of the present invention distributes, specifically comprises:
Network equipment 401, for the metrical information reporting at the each mobile terminal 402 receiving, for the each base station in current system of carrying out power division, extract each mobile terminal 402 to Reference Signal Received Power RSRP value that should base station, according to the reference signal transmission power level of this base station of preserving, and the each mobile terminal 402 extracting is to RSRP value that should base station, determine that each mobile terminal 402 is to link gain that should base station, according to the link gain of the each base station in the corresponding described system of each mobile terminal 402 of determining, while determining the throughput maximum of described system, each base station is the power of the each resource block assignments of self, and to notify each base station be the each resource block assignments corresponding power of self,
Mobile terminal 402, for to described network equipment 401 report measurement informations.
A kind of method that the embodiment of the present invention provides base station power to distribute, Apparatus and system, the method network equipment is for the each base station in current system of carrying out power division, according to each mobile terminal reporting to RSRP that should base station, and the reference signal transmitting power of this base station, determine that each mobile terminal is to link gain that should base station, according to the link gain of the each base station in each mobile terminal correspondence system of determining, while determining the throughput maximum of system, each base station is the power of the each resource block assignments of self, and to notify each base station be the each resource block assignments corresponding power of self.Due in the embodiment of the present invention according to the link gain of the each base station in each mobile terminal correspondence system, determine the power of each resource block assignments that when throughput of system is maximum, each base station is self, therefore improved the throughput of system.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (13)
1. the method that base station power distributes, is characterized in that, comprising:
Network equipment, in the metrical information of the each mobile terminal reporting receiving, for the each base station in current system of carrying out power division, extracts each mobile terminal to Reference Signal Received Power RSRP value that should base station;
According to the reference signal transmission power level of this base station of preserving, and the each mobile terminal extracting is to RSRP value that should base station, determines that each mobile terminal is to link gain that should base station;
According to the link gain of the each base station in the corresponding described system of each mobile terminal of determining, while determining the throughput maximum of described system, each base station is the power of the each resource block assignments of self, and to notify each base station be the each resource block assignments corresponding power of self;
Wherein, while determining the throughput maximum of described system, the power of each resource block assignments that each base station is self comprises:
According to the link gain of the each base station in the corresponding described system of each mobile terminal of determining, and the power of each base station each resource block assignments that is self, determine the first throughput of described system, wherein, for each base station, the power sum of each resource block assignments that this base station is self is not more than the maximum power of this base station;
Adjust the power that each base station is the each resource block assignments of self, and determine the second throughput of described system;
When the first throughput of the described system that judgement is determined is less than the second throughput, using this second throughput as the first throughput, otherwise, poor according to the first throughput and the second throughput, determine that each base station is probability corresponding to power after self each resource block assignments is adjusted, power taking this probability after each resource block assignments is adjusted, determine that each base station is the power of the each resource block assignments of self, the throughput of the described system that the power of the each resource block assignments that is self using each base station is corresponding is as the first throughput;
In the time that the number of times of adjusting is not less than the first threshold of setting, or, power taking this probability after each resource block assignments is adjusted, determine that each base station is that the power of the each resource block assignments of self is the number of times of the power after non-adjustment, while being not less than the Second Threshold of setting, the power of the each resource block assignments that is self by current each base station, when maximum as the throughput of described system, the power of each resource block assignments that each base station is self.
2. the method for claim 1, is characterized in that, the reference signal transmission power level that obtains this base station comprises:
According to the identification information of this base station of carrying in the metrical information of each mobile terminal reporting, search the reference signal transmission power level to base station that should identification information;
By the reference signal transmission power level finding, as the reference signal transmission power level of this base station obtaining.
3. method as claimed in claim 2, is characterized in that, determines that each mobile terminal comprises link gain that should base station:
For each mobile terminal, by the reference signal transmission power level of this base station, with the difference of this mobile terminal to RSRP value that should base station, as this mobile terminal of determining to link gain that should base station.
4. the method for claim 1, is characterized in that, institute's method also comprises:
By repeatedly calculating, while determining the throughput maximum of each described system of calculating, the corresponding power of each resource block assignments that each base station is self;
For each calculating, while selecting the throughput maximum of described system, the power of each resource block assignments that each base station is self.
5. the method for claim 1, is characterized in that, the power of adjusting each base station and be the each resource block assignments of self comprises:
The power that each base station is the each resource block assignments of self is set, for each Resource Block of the each base station arranging, according to the power distributing on this Resource Block after arranging, determines the signal to noise ratio SINR of the mobile terminal that uses this Resource Block;
Judge whether definite SINR is not less than snr threshold corresponding to this Resource Block that current time is preserved;
In the time that definite SINR is not less than snr threshold corresponding to this Resource Block that current time preserves, by the power distributing on this Resource Block after arranging, the power of this resource block assignments that is self as this base station of adjusting, otherwise reset.
6. method as claimed in claim 5, is characterized in that, snr threshold corresponding to this Resource Block that current time is preserved comprises:
According to the metrical information of the mobile terminal reporting of current this Resource Block of use, the mobile terminal that extracts current this Resource Block of use carrying in this metrical information is to Timing Advance that should base station;
According to the Timing Advance extracting, determine that the mobile terminal of current this Resource Block of use is to the distance of this base station;
According to definite distance, determine the region at the mobile terminal place of current this Resource Block of use;
According to definite region, and snr threshold corresponding to each region of preserving, search snr threshold corresponding to this region, by this snr threshold finding, snr threshold corresponding to this Resource Block of preserving as current time.
7. a base station power assigned unit, is characterized in that, comprising:
Receiver module, for receiving the metrical information of each mobile terminal reporting;
Extraction module, for the metrical information at the each mobile terminal reporting receiving, for the each base station in current system of carrying out power division, extracts each mobile terminal to Reference Signal Received Power RSRP value that should base station;
The first determination module, for according to the reference signal transmission power level of this base station of preserving, and the each mobile terminal extracting is to RSRP value that should base station, determines that each mobile terminal is to link gain that should base station;
The second determination module, the link gain of each base station of the corresponding described system of each mobile terminal of determining for basis, while determining the throughput maximum of described system, the power of each resource block assignments that each base station is self;
Notification module is the each resource block assignments corresponding power of self for notifying each base station;
Wherein, described the second determination module specifically for, according to the link gain of the each base station in the corresponding described system of each mobile terminal of determining, and the power of each base station each resource block assignments that is self, determine the first throughput of described system, wherein, for each base station, this base station is the maximum power that the power sum of the each resource block assignments of self is not more than this base station, adjust the power that each base station is the each resource block assignments of self, and the second throughput of definite described system, when the first throughput of the described system that judgement is determined is less than the second throughput, using this second throughput as the first throughput, otherwise, poor according to the first throughput and the second throughput, determine that each base station is probability corresponding to power after self each resource block assignments is adjusted, power taking this probability after each resource block assignments is adjusted, determine that each base station is the power of the each resource block assignments of self, the throughput of the described system that the power of the each resource block assignments that is self using each base station is corresponding is as the first throughput, in the time that the number of times of adjusting is not less than the first threshold of setting, or, power taking this probability after each resource block assignments is adjusted, determine that each base station is that the power of the each resource block assignments of self is the number of times of the power after non-adjustment, while being not less than the Second Threshold of setting, the power of the each resource block assignments that is self by current each base station, when maximum as the throughput of described system, each base station is the power of the each resource block assignments of self.
8. device as claimed in claim 7, it is characterized in that, described the first determination module specifically for, according to the identification information of this base station of carrying in the metrical information of each mobile terminal reporting, search the reference signal transmission power level to base station that should identification information, by the reference signal transmission power level finding, as the reference signal transmission power level of this base station obtaining.
9. device as claimed in claim 8, it is characterized in that, described the first determination module specifically for, for each mobile terminal, by the reference signal transmission power level of this base station, with the difference of this mobile terminal to RSRP value that should base station, as this mobile terminal of determining to link gain that should base station.
10. device as claimed in claim 7, it is characterized in that, described the second determination module also for, by repeatedly calculating, while determining the throughput maximum of each described system of calculating, the corresponding power of each resource block assignments that each base station is self, for each calculating, while selecting the throughput maximum of described system, the power of each resource block assignments that each base station is self.
11. devices as claimed in claim 7, it is characterized in that, described the second determination module specifically for, the power that each base station is the each resource block assignments of self is set, for each Resource Block of the each base station arranging, according to the power distributing on this Resource Block after arranging, determine the signal to noise ratio SINR of the mobile terminal that uses this Resource Block, judge whether definite SINR is not less than snr threshold corresponding to this Resource Block that current time is preserved, in the time that definite SINR is not less than snr threshold corresponding to this Resource Block that current time preserves, by the power distributing on this Resource Block after arranging, the power of this resource block assignments that is self as this base station of adjusting, otherwise reset.
12. devices as claimed in claim 11, it is characterized in that, described the second determination module specifically for, according to the metrical information of the mobile terminal reporting of current this Resource Block of use, the mobile terminal that extracts current this Resource Block of use carrying in this metrical information is to Timing Advance that should base station, according to the Timing Advance extracting, determine that the mobile terminal of current this Resource Block of use is to the distance of this base station, according to definite distance, determine the region at the mobile terminal place of current this Resource Block of use, according to definite region, and snr threshold corresponding to each region of preserving, search snr threshold corresponding to this region, by this snr threshold finding, snr threshold corresponding to this Resource Block of preserving as current time.
13. 1 kinds of systems that base station power distributes, is characterized in that, comprising:
Network equipment, for the metrical information at the each mobile terminal reporting receiving, for the each base station in current system of carrying out power division, extract each mobile terminal to Reference Signal Received Power RSRP value that should base station, according to the reference signal transmission power level of this base station of preserving, and the each mobile terminal extracting is to RSRP value that should base station, determine that each mobile terminal is to link gain that should base station, according to the link gain of the each base station in the corresponding described system of each mobile terminal of determining, while determining the throughput maximum of described system, each base station is the power of the each resource block assignments of self, and to notify each base station be the each resource block assignments corresponding power of self,
Mobile terminal, for to described network equipment report measurement information;
Wherein, described network equipment specifically for:
According to the link gain of the each base station in the corresponding described system of each mobile terminal of determining, and the power of each base station each resource block assignments that is self, determine the first throughput of described system, wherein, for each base station, the power sum of each resource block assignments that this base station is self is not more than the maximum power of this base station;
Adjust the power that each base station is the each resource block assignments of self, and determine the second throughput of described system;
When the first throughput of the described system that judgement is determined is less than the second throughput, using this second throughput as the first throughput, otherwise, poor according to the first throughput and the second throughput, determine that each base station is probability corresponding to power after self each resource block assignments is adjusted, power taking this probability after each resource block assignments is adjusted, determine that each base station is the power of the each resource block assignments of self, the throughput of the described system that the power of the each resource block assignments that is self using each base station is corresponding is as the first throughput;
In the time that the number of times of adjusting is not less than the first threshold of setting, or, power taking this probability after each resource block assignments is adjusted, determine that each base station is that the power of the each resource block assignments of self is the number of times of the power after non-adjustment, while being not less than the Second Threshold of setting, the power of the each resource block assignments that is self by current each base station, when maximum as the throughput of described system, the power of each resource block assignments that each base station is self.
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| CN103957586B (en) * | 2014-04-30 | 2018-01-09 | 京信通信系统（中国）有限公司 | The power regulating method and device of WLAN |
| CN105228234B (en) * | 2014-06-12 | 2019-05-28 | 华为技术有限公司 | Interference control method and equipment, base station |
| US20160286425A1 (en) * | 2015-03-23 | 2016-09-29 | Nokia Solutions And Networks Oy | Method and system for wireless network optimization |
| EP3320630B1 (en) * | 2015-07-08 | 2023-04-05 | Huawei Technologies Co., Ltd. | Calculation of attenuation of the uplink and downlink in a wireless communcation system |
| CN110313194B (en) * | 2017-04-28 | 2022-07-22 | 华为技术有限公司 | Method, equipment and system for sending information and measuring received power |
| CN108282437B (en) * | 2018-01-08 | 2019-12-24 | 西安电子科技大学 | Data detection method based on simulated annealing neural network and interference elimination |
| CN114071580A (en) * | 2021-11-04 | 2022-02-18 | 中国联合网络通信集团有限公司 | Data transmission method and device and electronic equipment |
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| CN201639782U (en) * | 2009-12-30 | 2010-11-17 | 江西省电力公司 | User equipment and wireless communication system for optimizing wireless network resource allocation |
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