CN108076509A - A kind of Wireless MESH network power regulating method, device and equipment - Google Patents
A kind of Wireless MESH network power regulating method, device and equipment Download PDFInfo
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- CN108076509A CN108076509A CN201810134658.XA CN201810134658A CN108076509A CN 108076509 A CN108076509 A CN 108076509A CN 201810134658 A CN201810134658 A CN 201810134658A CN 108076509 A CN108076509 A CN 108076509A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/46—TPC being performed in particular situations in multi hop networks, e.g. wireless relay networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
A kind of Wireless MESH network power regulating method, device and equipment, this method include：Power control target value is determined by handling capacity, and reference signal is sent to receiving node in measurement subframe, the channel quality of receiving node is calculated according to reference signal, and the channel quality for passing through the power control target value and receiving node is adjusted the transmit power of sending node.Therefore, on the premise of current throughput demand is met, interference of the transmission power to other nodes has been reduced to the greatest extent, and has saved electricity and extend operating time.In addition, while power adjustment, the adjustment to the AGC of receiving node is also achieved.
Description
Technical field
The present invention relates to Wireless MESH network field more particularly to a kind of Wireless MESH network power regulating method, devices
And equipment.
Background technology
The multihop network that wireless Mesh netword is made of wireless router.Mainly by wireless routing node, access point and
User node forms.Because it is easy to dispose, the more low characteristic of cost, wireless Mesh netword is originally developed applied to war and oneself
Right disaster etc. needs the scene of rapid deployment communication network, and is applied to solve " last one kilometer " network problem.
But when carrying out Wireless MESH network transmission, transmission power is often uncontrollable, in this way, needing very little
Power when can carry out signal transmission, many useless power will be generated, which not only adds the consumption of electric energy, and
And excessively high can also be generated to the signal transmission between multiple equipment of power is disturbed.
The content of the invention
In view of this, it is real an embodiment of the present invention provides a kind of Wireless MESH network power regulating method device and equipment
Show when being carried out data transmission by Wireless MESH network, on the premise of current throughput demand is met, reduced hair to the greatest extent
Power is penetrated, and then reduces interference of the transmission power to other nodes, electricity is saved and extends operating time.
A kind of Wireless MESH network power regulating method provided in an embodiment of the present invention, including：
In default measurement subframe, sending node sends default reference signal to receiving node；
The reference signal and default reference signal that receiving node foundation receives calculate the channel matter of the receiving node
Measurement；
Within the default time, the channel quality measurements are fed back to the sending node by the receiving node；
The sending node calculates power adjustment according to the channel quality measurements and default power control target value；
The transmission power current according to power adjustment adjustment sending node.
Optionally, the channel quality measurements include：
Reference Signal Received Power, single current channel quality indicated value, double-current channel quality indicated value and channel matrix rank.
Optionally, the sending node calculates power according to the channel quality measurements and default power control target value
Adjusted value, including：
The target power control value includes：First object channel quality indicated value, echo signal interference-to-noise ratio；
The second target channel quality indicated value is determined according to the channel matrix；Wherein, the second destination channel instruction
It is worth for single current channel quality indicated value or double-current channel quality indicated value；
The difference and the second destination channel matter of transmission power when according to current transmission power and sending reference sequences
Amount instruction is worth corresponding Signal Interference and Noise Ratio, calculates thermal compensation signal interference-to-noise ratio；
The disposal of gentle filter is carried out to the thermal compensation signal interference-to-noise ratio, obtains average signal interference-to-noise ratio；
Judge the second target channel quality indicated value and the relation of first object channel quality indicated value；
If the second target channel quality indicated value is equal to the first channel quality indicated value, power adjustment 0；
If the second target channel quality indicated value is more than first object channel quality indicated value, done according to the average signal
Noise is disturbed than the difference of the maximum with the echo signal interference-to-noise ratio and the relation of default first threshold, calculates work(
Rate adjusted value；
If the second target channel quality indicated value is less than first channel quality indicated value, according to the average letter
Number interference-to-noise ratio and the difference of minimum value of the echo signal interference-to-noise ratio and the relation of default second threshold, meter
Calculate power adjustment.
Optionally, further include：
In initialization, the target throughput of system is configured；
According to the target throughput, the power control target value of sending node is determined in default relation table.
Optionally, in default measurement subframe, sending node further includes after receiving node sends reference signal：
Receiving node calculates target automatic gain control value according to reference signal；
Next time slot comes into force the target automatic gain control value.
A kind of Wireless MESH network power adjustment apparatus provided in an embodiment of the present invention, including：
In default measurement subframe, sending node sends default reference signal to receiving node；
First computing unit for receiving node according to the reference signal and default reference signal that receive, calculates institute
State the channel quality measurements of receiving node；
Feedback unit, within the default time, the channel quality measurements to be fed back to institute by the receiving node
State sending node；
Second computing unit, for the sending node according to the channel quality measurements and default power control target
Value calculates power adjustment；
Adjustment unit, for the transmission power current according to power adjustment adjustment sending node.
Optionally, further include：
Dispensing unit, in initialization, configuring the target throughput of system；
Determination unit, for according to the target throughput, the power control of sending node to be determined in default relation table
Desired value.
Optionally, further include：
3rd computing unit for receiving node according to reference signal, calculates target automatic gain control value；
Validation unit comes into force the target automatic gain control value for next time slot.
A kind of Wireless MESH network power adjustment equipment provided in an embodiment of the present invention, including：
Memory and processor；
Wherein, the memory is connected to the processor, for storing what is generated in program and program operation process
Data；
The processor for passing through the program run and stored in the memory, realizes following functions：
In default measurement subframe, sending node sends default reference signal to receiving node；Receiving node foundation connects
The reference signal and default reference signal received calculates the channel quality measurements of the receiving node；In the default time
Interior, the channel quality measurements are fed back to the sending node by the receiving node；The sending node is according to the letter
Road quality measured values and default power control target value calculate power adjustment；Sending node is adjusted according to the power adjustment
Current transmission power.
Optionally, the processor is additionally operable to：
In initialization, the target throughput of system is configured；
According to the target throughput, the power control target value of sending node is determined in default relation table.
Optionally, the processor is additionally operable to：
Receiving node calculates target automatic gain control value according to reference signal；
Next time slot comes into force the target automatic gain control value.
A kind of Wireless MESH network power regulating method provided in an embodiment of the present invention, power control target is determined by handling capacity
Value, in default measurement subframe, sending node sends default reference signal to receiving node；Receiving node foundation receives
Reference signal and default reference signal calculate the channel quality measurements of the receiving node；It is described within the default time
The channel quality measurements are fed back to the sending node by receiving node；The sending node is surveyed according to the channel quality
Magnitude and default power control target value calculate power adjustment；The hair current according to power adjustment adjustment sending node
Penetrate power.Therefore, on the premise of current throughput demand is met, reduce transmission power to the greatest extent, and then reduce transmitting work(
Interference of the rate to other nodes, saves electricity and extends operating time.And while power adjustment, realize and saved to receiving
The adjustment of the AGC of point.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 shows a kind of flow diagram of Wireless MESH network power regulating method provided in an embodiment of the present invention；
Fig. 2 shows the flow diagram for the method for calculating power adjustment；
Fig. 3 shows that a kind of structure of Wireless MESH network power adjustment apparatus provided in an embodiment of the present invention is shown
It is intended to；
Fig. 4 shows a kind of structure chart of Wireless MESH network power adjustment equipment provided in an embodiment of the present invention；
Fig. 5 shows transmission power and AGC Joint regulation power schematic diagrames.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
With reference to figure 1, show that a kind of flow of Wireless MESH network power regulating method provided in an embodiment of the present invention is shown
It is intended to, in the present embodiment, this method includes：
S101：In default measurement subframe, sending node sends default reference signal to receiving node；
In the present embodiment, default measurement subframe is set in system initialization, wherein measurement subframe is appreciated that
For some of system-frame fixes time slot, every fixation time slot, and sending node needs to send reference signal to receiving node.
Wherein, reference signal is pre-set, and sending node and receiving node know the reference signal to be sent
What is.
In addition, before S101 is performed, it is also necessary to determine the power control target value of sending node, wherein the power control mesh
Scale value includes：First object CQItar(English full name：Channel Quality Indicator, Chinese full name:Channel quality refers to
Show) and target SINR (English full name：Signal Interference to Noise Rate, Chinese full name:Signal interference is made an uproar
Acoustic ratio), specifically, further including：
In initialization, the target throughput of system is configured；
According to the target throughput, the power control target value of sending node is determined in default relation table.
In the present embodiment, which is the most energy saving power in the case where ensureing throughput of system.Such as following table one
Shown, CQI, SINR and handling capacity have one-to-one relationship, and wherein handling capacity is corresponded with CQI, and CQI and SINR value are one by one
It is corresponding.In addition, handling capacity can directly correspond to SINR；Wherein SINR value is a value range.
Table one
S102：Receiving node calculates the receiving node according to the reference signal and default reference signal that receive
Channel quality measurements；
In the present embodiment, default reference signal is pre-set, but from sending node by default reference signal
After sending, since the channel quality of receiving node is different, the reference signal that receiving node receives may be different from default ginseng
Examine signal.
Wherein, channel quality measurements include：Reference Signal Received Power (English full name：Reference Signal
Received Power, English abbreviation：RSRP), single current channel quality indicated value CQIsingleTB, double-current channel quality indicated value
CQIdoubleTBWith channel matrix rank (English full name：Rank Indicator, English abbreviation：RI).
S103：Within the default time, the channel quality measurements are fed back to described send and saved by the receiving node
Point；
It illustrates：Due to there is time delay of eating dishes without rice or wine, and it must ensure sending node before next measurement subframe arrives
And decoding, and then power is adjusted according to feedack, receiving node is needed before next measurement subframe, at least in advance four
A subframe is to sending node feedback channel quality measured value.
It is fed back it should be noted that receiving node shifts to an earlier date how many a subframes to sending node, it can be according to actual feelings
Condition is determined.
S104：The sending node calculates power tune according to the channel quality measurements and default power control target value
Whole value；
In the present embodiment, the emission mode that sending node uses may be that single current is also likely to be double-current, different transmitting mould
Formula, corresponding to the value of different CQI, the value of different CQI corresponds to different SINR, also, is also needed for the adjustment of power
Ensure SINR in the range of target SINR, specifically, with reference to figure 2, S104 includes：
S201:The second target channel quality indicated value is determined according to the channel matrix；Wherein, second destination channel
Indicated value is single current channel quality indicated value or double-current channel quality indicated value；
S202:The difference and the second target of transmission power when according to current transmission power and sending reference sequences
The corresponding Signal Interference and Noise Ratio of channel quality indicated value calculates the offset of Signal Interference and Noise Ratio；
In the present embodiment, due to current transmission power compared with send reference sequences when, power may have been carried out
Adjustment, that is to say, that current transmission power and transmission power when sending reference sequences are different, and signal interference noises
The offset of ratio is compared with current power.Also, in the present embodiment, as shown in Table 1 above, channel quality indicated value CQI
It is corresponded with Signal Interference and Noise Ratio SINR, therefore, the second target system channel quality indicated value sent according to receiving node
CQIchooseSignal Interference and Noise Ratio SINR can be determined, specifically, formula below 1 can be passed through) calculate signal interference noise
The offset of ratio：
1) compensation-SINRA_B=SINRA_B+(Pt-Pt-n)；
Wherein, compensation-SINRA_BFor the offset of Signal Interference and Noise Ratio, SINRA_BFor the second target CQLchooseIt is corresponding
Signal Interference and Noise Ratio, PtFor current transmission power, Pt-nTo send transmission power during reference signal, A saves to send
Point, B are receiving node.
S203:The disposal of gentle filter is carried out to the thermal compensation signal interference-to-noise ratio, obtains average signal interference-to-noise ratio；
It illustrates：Formula below 2 can be passed through) calculate average signal interference-to-noise ratio：
2)SINRavg=c*SINRavg+ (1-c) * compensation-SINRA_B；
Wherein, SINRavgTo carry out the average signal interference-to-noise ratio obtained after time domain smothing filtering in compensation SINR, c is
Filter factor, compensation-SINRA_BFor thermal compensation signal interference-to-noise ratio.
S204:Judge the second target channel quality indicated value and the relation of first object channel quality indicated value；
S205:If the second target channel quality indicated value is equal to the first channel quality indicated value, power adjustment 0；
In the present embodiment, if the second target CQLchooseEqual to first object channel quality indicated value CQLsar, then need not
Power is adjusted again.
S206:If the second target channel quality indicated value is more than first object channel quality indicated value, according to described average
The difference of the maximum of Signal Interference and Noise Ratio and the echo signal interference-to-noise ratio and the relation of default first threshold,
Calculate power adjustment；
In the present embodiment, if CQIchoose>CQItar, equation 3 below can be passed through) calculate power adjusted value：
3) DeltaP=max { min [(SINRavg-SINRtar_up),0],-6dB}；
Wherein, CQIchooseFor the second target channel quality indicated value, CQItarFor first object channel quality indicated value,
DeltaP be power adjusted value, SINRavgFor average signal interference-to-noise ratio, SINRtar_upFor echo signal interference-to-noise ratio
Maximum.
In the present embodiment, due to CQIchoose>CQItarWhen, it is necessary to power is turned down, therefore power adjustment should be small
In zero value, but adjust in order to prevent excessive, adjusted value also needs to be limited in certain scope, in the present embodiment can be with
It is arranged to -6dB.Therefore, first threshold can be understood as 0 and -6dB.
S207:If the second target channel quality indicated value is less than first channel quality indicated value, according to described
The difference of the minimum value of average signal interference-to-noise ratio and the echo signal interference-to-noise ratio and default second threshold
Relation calculates power adjustment.
In the present embodiment, if CQIchoose<CQItar, equation 4 below can be passed through) calculate power tune
Whole value,
4) DeltaP=min { max [(SINRtar_low-SINRavg),0],6dB}；
DeltaP be power adjusted value, SINRavgFor average signal interference-to-noise ratio, SINRtar_upIt is done for echo signal
Disturb noise than maximum.
In the present embodiment, due to CQIchoose<CQItarWhen, it is necessary to power is heightened, therefore power adjustment should be big
In zero value, but adjust in order to prevent excessive, adjusted value also needs to be limited in certain scope, in the present embodiment can be with
It is arranged to 6dB.Therefore, second threshold can be understood as 0 and 6dB.
In addition, it should also ensure that less than default maximum for the adjustment of power, therefore, further include：
The difference and reference signal of transmission power when according to current transmission power and sending reference sequences receive work(
Rate calculates transmission power offset；
The disposal of gentle filter is carried out to the transmission power offset, obtains mean power；
Judge whether mean power is more than default power maximum；
If more than, then the mean power and target power are compared, obtain power adjustment；
If being not more than, perform S201~S206 the step of.
S105：The transmission power current according to power adjustment adjustment sending node.
In the present embodiment, work as CQIchoose>CQItarWhen, the power P after adjustmentadjust=max { Pt+DeltaP,Pmin, i.e.,
Power after adjustment cannot be less than the minimum value of default power；Work as CQIchoose<CQItar, the power P after adjustmentadjust=min
{Pt+DeltaP,Pmax, that is, the volume power after adjusting cannot be more than the maximum of default power.
In the present embodiment, due to the adjustment of power, the automatic growth control AGC of receiving node needs to adapt to the tune of power
It is whole, therefore further include：
Receiving node calculates target automatic gain control value according to reference signal；
Next time slot comes into force the target automatic gain control value.
It illustrates：As Fig. 5 shows transmission power and AGC Joint regulation power schematic diagrames.
In the present embodiment, power control target value is determined by handling capacity, and is sent in measurement subframe to receiving node with reference to letter
Number, the channel quality of receiving node is calculated according to reference signal, and passes through the channel quality of the power control target value and receiving node
The transmit power of sending node is adjusted.Therefore, on the premise of current throughput demand is met, transmitting has been reduced to the greatest extent
Interference of the power to other nodes, and save electricity and extend operating time.In addition, while power adjustment, also
Realize the adjustment to the AGC of receiving node.
With reference to figure 3, a kind of Wireless MESH network power adjustment apparatus provided in an embodiment of the present invention is shown, including：
In default measurement subframe 301, sending node sends default reference signal to receiving node；
First computing unit 302 for receiving node according to the reference signal and default reference signal that receive, calculates
The channel quality measurements of the receiving node；
Feedback unit 303, within the default time, the receiving node to feed back to the channel quality measurements
The sending node；
Second computing unit 304, for the sending node according to the channel quality measurements and default power control mesh
Scale value calculates power adjustment；
Adjustment unit 305, for the transmission power current according to power adjustment adjustment sending node.
Optionally, further include：
Dispensing unit, in initialization, configuring the target throughput of system；
Determination unit, for according to the target throughput, the power control of sending node to be determined in default relation table
Desired value.
Optionally, further include：
3rd computing unit for receiving node according to reference signal, calculates target automatic gain control value；
Validation unit comes into force the target automatic gain control value for next time slot.
Optionally, second computing unit is specifically used for：
The target power control value includes：First object channel quality indicated value, echo signal interference-to-noise ratio；
The second target channel quality indicated value is determined according to the channel matrix；Wherein, the second destination channel instruction
It is worth for single current channel quality indicated value or double-current channel quality indicated value；
The difference and the second destination channel matter of transmission power when according to current transmission power and sending reference sequences
Amount instruction is worth corresponding Signal Interference and Noise Ratio, calculates thermal compensation signal interference-to-noise ratio；
The disposal of gentle filter is carried out to the thermal compensation signal interference-to-noise ratio, obtains average signal interference-to-noise ratio；
Judge the second target channel quality indicated value and the relation of first object channel quality indicated value；
If the second target channel quality indicated value is equal to the first channel quality indicated value, power adjustment 0；
If the second target channel quality indicated value is more than first object channel quality indicated value, done according to the average signal
Noise is disturbed than the difference of the maximum with the echo signal interference-to-noise ratio and the relation of default first threshold, calculates work(
Rate adjusted value；
If the second target channel quality indicated value is less than first channel quality indicated value, according to the average letter
Number interference-to-noise ratio and the difference of minimum value of the echo signal interference-to-noise ratio and the relation of default second threshold, meter
Calculate power adjustment.
Device through this embodiment is realized on the premise of current throughput demand is met, and has reduced transmitting to the greatest extent
Interference of the power to other nodes, and save electricity and extend operating time.In addition, while power adjustment, also
Realize the adjustment to the AGC of receiving node.
With reference to figure 4, a kind of structure chart of Wireless MESH network power adjustment equipment provided in an embodiment of the present invention is shown,
Including：
Memory 401 and processor 402；
Wherein, the memory is connected to the processor, for storing what is generated in program and program operation process
Data；
The processor for passing through the program run and stored in the memory, realizes following functions：
In default measurement subframe, sending node sends default reference signal to receiving node；Receiving node foundation connects
The reference signal and default reference signal received calculates the channel quality measurements of the receiving node；In the default time
Interior, the channel quality measurements are fed back to the sending node by the receiving node；The sending node is according to the letter
Road quality measured values and default power control target value calculate power adjustment；Sending node is adjusted according to the power adjustment
Current transmission power.
Optionally, the processor is additionally operable to：
In initialization, the target throughput of system is configured；
According to the target throughput, the power control target value of sending node is determined in default relation table.
Optionally, the processor is additionally operable to：
Receiving node calculates target automatic gain control value according to reference signal；
Next time slot comes into force the target automatic gain control value.
Equipment through this embodiment is realized on the premise of current throughput demand is met, and has reduced transmitting to the greatest extent
Interference of the power to other nodes, and save electricity and extend operating time.In addition, while power adjustment, also
Realize the adjustment to the AGC of receiving node.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation is all difference from other examples, and just to refer each other for identical similar part between each embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (11)
1. a kind of Wireless MESH network power regulating method, which is characterized in that including：
In default measurement subframe, sending node sends default reference signal to receiving node；
Receiving node according to the reference signal and default reference signal received, survey by the channel quality for calculating the receiving node
Magnitude；
Within the default time, the channel quality measurements are fed back to the sending node by the receiving node；
The sending node calculates power adjustment according to the channel quality measurements and default power control target value；
The transmission power current according to power adjustment adjustment sending node.
2. according to the method described in claim 1, it is characterized in that, the channel quality measurements include：
Reference Signal Received Power, single current channel quality indicated value, double-current channel quality indicated value and channel matrix rank.
3. according to the method described in claim 2, it is characterized in that, the sending node according to the channel quality measurements and
Default power control target value calculates power adjustment, including：
The target power control value includes：First object channel quality indicated value, echo signal interference-to-noise ratio；
The second target channel quality indicated value is determined according to the channel matrix；Wherein, the second destination channel indicated value is
Single current channel quality indicated value or double-current channel quality indicated value；
The difference of transmission power when according to current transmission power and sending reference sequences and the second target channel quality refer to
The corresponding Signal Interference and Noise Ratio of indicating value calculates thermal compensation signal interference-to-noise ratio；
The disposal of gentle filter is carried out to the thermal compensation signal interference-to-noise ratio, obtains average signal interference-to-noise ratio；
Judge the second target channel quality indicated value and the relation of first object channel quality indicated value；
If the second target channel quality indicated value is equal to the first channel quality indicated value, power adjustment 0；
If the second target channel quality indicated value is more than first object channel quality indicated value, made an uproar according to average signal interference
The difference of the maximum of acoustic ratio and the echo signal interference-to-noise ratio and the relation of default first threshold calculate power tune
Whole value；
If the second target channel quality indicated value is less than first channel quality indicated value, done according to the average signal
Noise is disturbed than the difference of the minimum value with the echo signal interference-to-noise ratio and the relation of default second threshold, calculates work(
Rate adjusted value.
4. it according to the method described in claim 1, it is characterized in that, further includes：
In initialization, the target throughput of system is configured；
According to the target throughput, the power control target value of sending node is determined in default relation table.
5. according to the method described in claim 1, it is characterized in that, in default measurement subframe, sending node is to receiving node
After sending reference signal, further include：
Receiving node calculates target automatic gain control value according to reference signal；
Next time slot comes into force the target automatic gain control value.
6. a kind of Wireless MESH network power adjustment apparatus, which is characterized in that including：
In default measurement subframe, sending node sends default reference signal to receiving node；
First computing unit for receiving node according to the reference signal that receives and default reference signal, connects described in calculating
Receive the channel quality measurements of node；
Feedback unit, within the default time, the channel quality measurements to be fed back to the hair by the receiving node
Send node；
Second computing unit, for the sending node according to the channel quality measurements and default power control target value, meter
Calculate power adjustment；
Adjustment unit, for the transmission power current according to power adjustment adjustment sending node.
7. device according to claim 6, which is characterized in that further include：
Dispensing unit, in initialization, configuring the target throughput of system；
Determination unit, for according to the target throughput, determining the power control target of sending node in default relation table
Value.
8. device according to claim 6, which is characterized in that further include：
3rd computing unit for receiving node according to reference signal, calculates target automatic gain control value；
Validation unit comes into force the target automatic gain control value for next time slot.
9. a kind of Wireless MESH network power adjustment equipment, which is characterized in that including：
Memory and processor；
Wherein, the memory is connected to the processor, for storing the number generated in program and program operation process
According to；
The processor for passing through the program run and stored in the memory, realizes following functions：
In default measurement subframe, sending node sends default reference signal to receiving node；Receiving node foundation receives
Reference signal and default reference signal, calculate the channel quality measurements of the receiving node；Within the default time, institute
It states receiving node and the channel quality measurements is fed back into the sending node；The sending node is according to the channel quality
Measured value and default power control target value calculate power adjustment；Current according to power adjustment adjustment sending node
Transmission power.
10. equipment according to claim 9, which is characterized in that the processor is additionally operable to：
In initialization, the target throughput of system is configured；
According to the target throughput, the power control target value of sending node is determined in default relation table.
11. equipment according to claim 9, which is characterized in that the processor is additionally operable to：
Receiving node calculates target automatic gain control value according to reference signal；
Next time slot comes into force the target automatic gain control value.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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