CN107465484A - A kind of Adaptive Modulation and Coding AMC methods of adjustment and system - Google Patents
A kind of Adaptive Modulation and Coding AMC methods of adjustment and system Download PDFInfo
- Publication number
- CN107465484A CN107465484A CN201610391255.4A CN201610391255A CN107465484A CN 107465484 A CN107465484 A CN 107465484A CN 201610391255 A CN201610391255 A CN 201610391255A CN 107465484 A CN107465484 A CN 107465484A
- Authority
- CN
- China
- Prior art keywords
- channel quality
- amc
- difference
- weighted factor
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
- H04L1/0021—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach in which the algorithm uses adaptive thresholds
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
Abstract
The invention provides a kind of Adaptive Modulation and Coding AMC methods of adjustment and system, wherein, methods described includes：Obtain the channel quality of the present channel of terminal；According to the channel quality of the present channel difference with the first channel quality thresholds, second channel quality threshold and the 3rd channel quality thresholds respectively, weighted factor is determined；Correction result and the weighted factor are accumulated according to history AMC, determine AMC correction values；Terminal data is scheduled according to the AMC correction values of determination.Solves the amendment cumulative amount for not being adapted dynamically AMC existing for existing AMC adjustable strategies by the present invention, particularly when user moves, caused by the scene after AMC amendment cumulative amounts and movement mismatches the problem of AMC deviations.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of Adaptive Modulation and Coding AMC methods of adjustment and system.
Background technology
In mobile communication system, be usually taken with AMC (Adaptive Modulation and Coding, adaptively
Modulating-coding) technology come according to channel circumstance adjust modulating-coding grade MCS (Modulation and Coding Scheme,
Modulation and coding strategy, key technology of the AMC technologies as GSM, using various scenes are spread all over, influence user's sense
Know.
One principle of AMC technologies is：When terminal is mobile, channel circumstance changes, amendment knot is accumulated based on history AMC
Fruit adjusts business.By common channel quality at present it is good, in, exemplified by poor three scenes, existing AMC adjustable strategies are directed to
Well, the user in, under poor three channel circumstances is using same standard and adjustment principle：For example, user is from being almost moved to
, can be by user in the AMC amendment accumulations that not good enough AMC amendment accumulations are applied directly to when user is moved to better during point；Again
Or user from it is better be moved to not good enough when, better AMC amendments accumulation can be applied directly to when user is moved to not good enough
In AMC amendment accumulations.
It can be seen that existing AMC adjustable strategies are the problem of presence：AMC amendment cumulative amount is not adapted dynamically, particularly
When user moves, AMC offset issues caused by AMC amendment cumulative amounts mismatch with the scene after movement.
The content of the invention
The present invention provides a kind of Adaptive Modulation and Coding AMC methods of adjustment and system, to solve existing AMC adjustable strategies
The existing amendment cumulative amount for not being adapted dynamically AMC, particularly when user moves, after AMC amendment cumulative amounts and movement
Caused by scene mismatches the problem of AMC deviations.
In order to solve the above problems, the invention discloses a kind of Adaptive Modulation and Coding AMC methods of adjustment, including：
Obtain the channel quality of the present channel of terminal；
According to the channel quality of the present channel respectively with the first channel quality thresholds, second channel quality threshold and
The difference of three channel quality thresholds, determines weighted factor；
Correction result and the weighted factor are accumulated according to history AMC, determine AMC correction values；
Terminal data is scheduled according to the AMC correction values of determination.
Correspondingly, the invention also discloses a kind of Adaptive Modulation and Coding AMC to adjust system, including：
Acquisition module, the channel quality of the present channel for obtaining terminal；
First determining module, for according to the channel quality of the present channel respectively with the first channel quality thresholds,
The difference of two channel quality thresholds and the 3rd channel quality thresholds, determines weighted factor；
Second determining module, for accumulating correction result and the weighted factor according to history AMC, determine AMC correction values；
Scheduler module, terminal data is scheduled for the AMC correction values according to determination.
Compared with prior art, the present invention includes advantages below：
, can be according to the channel quality of present channel the invention discloses a kind of Adaptive Modulation and Coding AMC Adjusted Options
With the difference of the first channel quality thresholds, second channel quality threshold and the 3rd channel quality thresholds, it is determined that in each channel matter
Weighted factor corresponding under environment is measured, and then according to the weighted factor of determination to the history corresponding to each channel quality environment
AMC accumulation correction results are modified, and obtain final AMC correction values, and carry out business tune using obtained AMC correction values
Degree.It can be seen that in the present invention, when the channel quality of present channel is different or changes, the result of AMC correction values is that dynamic becomes
Change, in other words, by present invention determine that AMC correction values can be moved according to the channel quality of the present channel where terminal
State adjusts, so that the scene after the AMC correction values that adjustment obtains move with terminal matches, ensures the accuracy of AMC adjustment.
Brief description of the drawings
Fig. 1 is a kind of step flow chart of Adaptive Modulation and Coding AMC methods of adjustment in the embodiment of the present invention one；
Fig. 2 is a kind of step flow chart of Adaptive Modulation and Coding AMC methods of adjustment in the embodiment of the present invention two；
Fig. 3 is a kind of step flow chart of Adaptive Modulation and Coding AMC methods of adjustment in the embodiment of the present invention three；
Fig. 4 is a kind of structured flowchart of Adaptive Modulation and Coding AMC adjustment system in the embodiment of the present invention four；
Fig. 5 is a kind of structured flowchart of preferable Adaptive Modulation and Coding AMC adjustment systems in the embodiment of the present invention four；
Fig. 6 is a kind of structural representation of first determination sub-module in the embodiment of the present invention four；
Fig. 7 is a kind of structural representation of second determination sub-module in the embodiment of the present invention four；
Fig. 8 is a kind of structural representation of 3rd determination sub-module in the embodiment of the present invention four.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Embodiment one
Reference picture 1, show a kind of step flow of Adaptive Modulation and Coding AMC methods of adjustment in the embodiment of the present invention one
Figure.In the present embodiment, the Adaptive Modulation and Coding AMC methods of adjustment include：
Step 102, the channel quality of the present channel of terminal is obtained.
In the present embodiment, the channel quality where terminal can be directly reported by terminal base station or
Base station is obtained by measurement, for example, (Reference Signal Receiving Power, reference signal receive work(to RSRP
Rate), the parameter such as SINR (Signal to Interference plus Noise Ratio, Signal to Interference plus Noise Ratio) it is equal
The channel quality of the present channel where terminal is may be used to indicate, the present embodiment is not restricted to this.
Step 104, according to the channel quality of the present channel respectively with the first channel quality thresholds, second channel quality
The difference of thresholding and the 3rd channel quality thresholds, determines weighted factor.
In the present embodiment, multiple channel quality thresholds can be set, according to the channel quality of present channel and each letter
The difference result of road quality threshold determines weighted factor.For example, in the present embodiment, can be according to the channel matter of present channel
Corresponding second channel when corresponding first channel quality thresholds, midpoint (in channel quality) when amount is with better (channel quality is excellent)
The differences of quality threshold and corresponding 3rd channel quality thresholds when not good enough (bad channel quality) is determined in each channel quality
Weighted factor corresponding to lower.It should be noted that channel quality it is excellent, in, difference judgement can be sentenced according to existing channel quality
Disconnected rule and channel quality level division rule determine that the present embodiment is not restricted to this.In addition, also can also be according to actual feelings
Condition, determined such as the grade classification situation according to actual channel quality corresponding to multiple channel quality thresholds.
Step 106, correction result and the weighted factor are accumulated according to history AMC, determines AMC correction values.
In the present embodiment, history AMC accumulation correction results can be carried out according to the weighted factor of determination further excellent
Change, obtain one closer to the AMC correction values for realizing channel quality standard requirement, and then according to the AMC correction values to terminal
Data are scheduled.
Step 108, terminal data is scheduled according to the AMC correction values of determination.
In the present embodiment, terminal data can be scheduled according to the AMC correction values of determination, can effectively adapted to
Switching of the terminal in different business scene, avoid due to history AMC accumulations correction result caused by the continuous movement of terminal
Inaccuracy, the problem of AMC deviations after the switching of caused scene.
In summary, a kind of Adaptive Modulation and Coding AMC methods of adjustment described in the present embodiment, can be according to present channel
Channel quality and the first channel quality thresholds, second channel quality threshold and the 3rd channel quality thresholds difference, it is determined that
Corresponding weighted factor under each channel quality environment, and then according to the weighted factor of determination to each channel quality environment institute
Corresponding history AMC accumulations correction result is modified, and obtains final AMC correction values, and enter using obtained AMC correction values
Row traffic scheduling.It can be seen that in the present embodiment, when the channel quality of present channel is different or changes, the knot of AMC correction values
Fruit is dynamic change, and in other words, the AMC correction values determined by the present embodiment can be according to the present channel where terminal
Channel quality dynamic adjust so that the obtained AMC correction values of adjustment match with the scene after terminal movement, ensure AMC tune
Whole accuracy.
Embodiment two
Reference picture 2, show a kind of step flow of Adaptive Modulation and Coding AMC methods of adjustment in the embodiment of the present invention two
Figure.In the present embodiment, the Adaptive Modulation and Coding AMC methods of adjustment include：
Step 202, the channel quality of the present channel of terminal is obtained.
Step 204, according to the channel quality of the present channel respectively with the first channel quality thresholds, second channel quality
The difference of thresholding and the 3rd channel quality thresholds, determines weighted factor.
In the present embodiment, illustrated by taking thresholding corresponding to three standard channel qualities as an example, other multiple standard letters
Road quality determines that the situation of weighted factor is referred to the flow of three standard channel qualities of the present embodiment, and the present embodiment is not another
One explanation.
Wherein, three standard channel qualities are respectively following three rank；The first excellent channel quality of channel quality, channel
3rd channel quality of second channel quality and bad channel quality in quality.The standard channel quality of above three rank is corresponding
Thresholding be respectively：First channel quality thresholds, second channel quality threshold and the 3rd channel quality thresholds.Need what is illustrated
It is that first channel quality thresholds, second channel quality threshold and the 3rd channel quality thresholds can be according to simulation result
Determining or that technical staff determines according to practical experience, the present embodiment is not restricted to this.Specifically, Ke Yigen
According to the channel quality of the present channel and the difference of the first channel quality thresholds, the first weighted factor is determined；And according to institute
The channel quality of present channel and the difference of second channel quality threshold are stated, determines the second weighted factor；And worked as according to described
The difference of the channel quality of preceding channel and the 3rd channel quality thresholds, determine the 3rd weighted factor.
Separately below to the first weighted factor.The specific determination flow of second weighted factor and the 3rd weighted factor is said
It is bright：
1st, the first weighted factor is determined
It is in the present embodiment, described according to the channel quality of the present channel and the difference of the first channel quality thresholds,
The first weighted factor is determined, can specifically be included：
When the channel quality of the present channel and the difference of first channel quality thresholds are more than the first difference threshold
When, determine the first sub- weighted factor.
When the difference of channel quality and first channel quality thresholds of the present channel be more than the second difference threshold,
During less than or equal to first difference threshold, the second sub- weighted factor is determined.
When the channel quality of the present channel and the difference of first channel quality thresholds are less than or equal to described second
During difference threshold, the 3rd sub- weighted factor is determined.
Therefore in the present embodiment, when channel quality and first channel quality thresholds of the present channel
Difference when meeting various criterion, the specific value of the first weighted factor can be different, can be the first sub- weighted factor,
Any value in second sub- weighted factor and the 3rd sub- weighted factor.It is, of course, also possible to difference standard is entered according to actual conditions
The finer division of row, the present embodiment are not restricted to this.Wherein, first difference threshold is more than the second difference door
Limit.
2nd, the second weighted factor is determined
In the present embodiment, the channel quality according to the present channel and the difference of second channel quality threshold,
The second weighted factor is determined, can specifically be included：
When the channel quality of the present channel and the difference of the second channel quality threshold are more than the 3rd difference threshold
When, determine the 4th sub- weighted factor.
When the difference of channel quality and the second channel quality threshold of the present channel be more than the 4th difference threshold,
During less than or equal to three difference threshold, the 5th sub- weighted factor is determined.
When the channel quality of the present channel and the difference of the second channel quality threshold are less than or equal to the described 4th
During difference threshold, the 6th sub- weighted factor is determined.
Therefore in the present embodiment, when channel quality and the second channel quality threshold of the present channel
Difference when meeting various criterion, the specific value of the second weighted factor can be different, can be the 4th sub- weighted factor,
Any value in 5th sub- weighted factor and the 6th sub- weighted factor.It is, of course, also possible to difference standard is entered according to actual conditions
The finer division of row, the present embodiment are not restricted to this.Wherein, the 3rd difference threshold is more than the 4th difference door
Limit.
3rd, the 3rd weighted factor is determined
It is in the present embodiment, described according to the channel quality of the present channel and the difference of the 3rd channel quality thresholds,
The 3rd weighted factor is determined, can specifically be included：
When the channel quality of the present channel and the difference of the 3rd channel quality thresholds are more than the 5th difference threshold
When, determine the 7th sub- weighted factor.
When the difference of channel quality and the 3rd channel quality thresholds of the present channel be more than the 6th difference threshold,
During less than or equal to five difference threshold, the 8th sub- weighted factor is determined.
When the channel quality of the present channel and the difference of the 3rd channel quality thresholds are less than or equal to the described 6th
During difference threshold, the 9th sub- weighted factor is determined.
Therefore in the present embodiment, when channel quality and the 3rd channel quality thresholds of the present channel
Difference when meeting various criterion, the specific value of the 3rd weighted factor can be different, can be the 7th sub- weighted factor,
Any value in 8th sub- weighted factor and the 9th sub- weighted factor.It is, of course, also possible to difference standard is entered according to actual conditions
The finer division of row, the present embodiment are not restricted to this.Wherein, the 5th difference threshold is more than the 6th difference door
Limit.
Step 206, correction result and the weighted factor are accumulated according to history AMC, determines AMC correction values.
In the present embodiment, the history AMC accumulations correction result includes：First AMC accumulations correction result, the 2nd AMC
Accumulate correction result and the 3rd AMC accumulation correction results；Wherein, the first AMC accumulations correction result can be above-mentioned channel
Accumulation correction result corresponding to Functionality, quality and appealing design, the 2nd AMC accumulation correction results can be that corresponding accumulation is repaiied in above-mentioned channel quality
Positive result, the 3rd AMC accumulation correction results can be accumulation correction result corresponding to above-mentioned bad channel quality, that is, the first AMC
Accumulate corresponding first weighted factor of correction result, corresponding second weighted factor of the 2nd AMC accumulation correction results, the 3rd AMC accumulations
Corresponding 3rd weighted factor of correction result.
Wherein, correction result and the weighted factor are being accumulated according to history AMC, specifically can be with when determining AMC correction values
Including following three kinds of situations：
Correction result and the first sub- weighted factor determined or the second sub- weighted factor or the 3rd are accumulated according to history AMC
Sub- weighted factor, determine AMC correction values.
Correction result and the 4th sub- weighted factor determined or the 5th sub- weighted factor or the 6th are accumulated according to history AMC
Sub- weighted factor, determine AMC correction values.
Correction result and the 7th sub- weighted factor determined or the 8th sub- weighted factor or the 9th are accumulated according to history AMC
Sub- weighted factor, determine AMC correction values
Specifically, the step 206 can include：
Sub-step 2062, product, the institute of the first AMC accumulation correction results and first weighted factor are determined respectively
State the product of the 2nd AMC accumulation correction result and second weighted factor, the 3rd AMC accumulation correction results and described the
The product of three weighted factors, obtain corresponding first result of product, the second result of product and the 3rd result of product.
As described above, in the present embodiment, the first AMC accumulation correction results can correspond to the first weighted factor (described the
The value of one weighted factor can be the first sub- weighted factor, the second sub- weighted factor and the 3rd son determined according to actual conditions
One of them in weighted factor), the 2nd AMC accumulation correction results can correspond to the second weighted factor (second weighting because
The value of son can be the 4th sub- weighted factor, the 5th sub- weighted factor and the 6th sub- weighted factor determined according to actual conditions
In one of them), the 3rd AMC accumulation correction result can correspond to the 3rd weighted factor (value of the 3rd weighted factor
Can be determined according to actual conditions the 7th sub- weighted factor, in the 8th sub- weighted factor and the 9th sub- weighted factor wherein
One).Certainly, its corresponding situation is not limited to that any one appropriate corresponded manner is that the present embodiment is protected
Scheme.
For example, the first result of product=and the first AMC accumulation correction result the first weighted factor of *, the second result of product=the
Two AMC accumulate correction result the second weighted factors of *, the AMC of the 3rd result of product=the 3rd accumulation correction results * the 3rd weight because
Son.
Sub-step 2064, using first result of product, the second result of product and the 3rd result of product and as described in
AMC correction values.
For example, AMC correction values=first the+the three result of product of the+the second result of product of result of product.
Step 208, terminal data is scheduled according to the AMC correction values of determination.
In the present embodiment, terminal data can be scheduled according to the AMC correction values of determination, can effectively adapted to
Switching of the terminal in different business scene, avoid due to history AMC accumulations correction result caused by the continuous movement of terminal
Inaccuracy, the problem of AMC deviations after the switching of caused scene.
In summary, a kind of Adaptive Modulation and Coding AMC methods of adjustment described in the present embodiment, can be according to present channel
Channel quality and the first channel quality thresholds, second channel quality threshold and the 3rd channel quality thresholds difference, it is determined that
Corresponding weighted factor under each channel quality environment, and then according to the weighted factor of determination to each channel quality environment institute
Corresponding history AMC accumulations correction result is modified, and obtains final AMC correction values, and enter using obtained AMC correction values
Row traffic scheduling.It can be seen that in the present embodiment, when the channel quality of present channel is different or changes, the knot of AMC correction values
Fruit is dynamic change, and in other words, the AMC correction values determined by the present embodiment can be according to the present channel where terminal
Channel quality dynamic adjust so that the obtained AMC correction values of adjustment match with the scene after terminal movement, ensure AMC tune
Whole accuracy.
Embodiment three
With reference to above-described embodiment, the present embodiment is with an instantiation to the Adaptive Modulation and Coding AMC methods of adjustment
Illustrate.
In the present embodiment, can by channel quality for it is excellent, in, that history AMC corresponding to difference accumulates correction result is fixed respectively
Justice is：AMC1, AMC2 and AMC3；AMC correction values to be calculated are defined as AMC0；By the first weighted factor, second weighting because
Son and the 3rd weighted factor are respectively defined as Func1, Func2 and Func3；By channel quality for it is excellent, in, difference corresponding to channel matter
Amount thresholding is respectively defined as：R1, R2 and R3.Wherein, AMC0=Func1*AMC1+Func2*AMC2+Func3*AMC3.
Reference picture 3, show a kind of step flow of Adaptive Modulation and Coding AMC methods of adjustment in the embodiment of the present invention three
Figure.AMC0 specific calculation process can be as follows：
Step 302, the present channel quality of terminal is obtained.
Step 304, according to the present channel quality, determine respectively channel quality for it is excellent, in, it is poor when corresponding weighting because
Sub- Func1, Func2 and Func3.
Wherein：
Func1 determination mode can be as follows：
If ((present channel quality-R1)>N1)
Func1=0.01；
Else if (present channel quality-R1)>N2)
Func1=0.5；
Else
Func1=1.
Wherein, N1 and N2 is respectively default constant difference threshold.
Func2 determination mode can be as follows：
If ((present channel quality-midpoint channel quality)>M1)
Func2=0.05；
Else if (present channel quality-midpoint channel quality)>M2)
Func2=0.7；
Else
Func2=1.
Wherein, M1 and M2 is respectively default constant difference threshold.
Func3 determination mode can be as follows：
If ((present channel quality-not good enough channel quality)>P1)
Func3=0.01；
Else if (present channel quality-not good enough channel quality)>P2)
Func3=0.6；
Else
Func3=1.
Wherein, P1 and P2 is default constant difference threshold.
Step 306, AMC0 is determined.
In the present embodiment, AMC0=Func1*AMC1+Func2*AMC2+Func2*AMC3；Wherein, Func1, Func2
The occurrence of the determination of above-mentioned steps 204 is referred to Func3 value.
In summary, a kind of Adaptive Modulation and Coding AMC methods of adjustment described in the present embodiment, can be according to present channel
Channel quality and the first channel quality thresholds, second channel quality threshold and the 3rd channel quality thresholds difference, it is determined that
Corresponding weighted factor under each channel quality environment, and then according to the weighted factor of determination to each channel quality environment institute
Corresponding history AMC accumulations correction result is modified, and obtains final AMC correction values, and enter using obtained AMC correction values
Row traffic scheduling.It can be seen that in the present embodiment, when the channel quality of present channel is different or changes, the knot of AMC correction values
Fruit is dynamic change, and in other words, the AMC correction values determined by the present embodiment can be according to the present channel where terminal
Channel quality dynamic adjust so that the obtained AMC correction values of adjustment match with the scene after terminal movement, ensure AMC tune
Whole accuracy.
It should be noted that for foregoing embodiment of the method, in order to be briefly described, therefore it is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement, because according to
According to the present invention, some steps can use other orders or carry out simultaneously.Secondly, those skilled in the art should also know,
Embodiment described in this description belongs to preferred embodiment, and involved action is not necessarily essential to the invention.
Example IV
Based on the same inventive concept of above method embodiment, reference picture 4, show in the embodiment of the present invention four it is a kind of from
Adapt to the structured flowchart of modulating-coding AMC adjustment systems.In the present embodiment, the Adaptive Modulation and Coding AMC adjustment system,
Including：
Acquisition module 402, the channel quality of the present channel for obtaining terminal.
First determining module 404, for according to the channel quality of the present channel respectively with the first channel quality thresholds,
The difference of second channel quality threshold and the 3rd channel quality thresholds, determines weighted factor.
Second determining module 406, for accumulating correction result and the weighted factor according to history AMC, determine that AMC is corrected
Value.
Scheduler module 408, terminal data is scheduled for the AMC correction values according to determination.
In a preferred scheme of the present embodiment, reference picture 5, show a kind of preferable adaptive in the embodiment of the present invention four
Answer the structured flowchart of modulating-coding AMC adjustment systems.
Preferably, first determining module 404 can specifically include：First determination sub-module 4042, for according to institute
The channel quality of present channel and the difference of the first channel quality thresholds are stated, determines the first weighted factor；Second determination sub-module
4044, for the channel quality according to the present channel and the difference of second channel quality threshold, determine the second weighted factor；
3rd determination sub-module 4046, for the channel quality according to the present channel and the difference of the 3rd channel quality thresholds, really
Fixed 3rd weighted factor.
One is preferable, reference picture 6, shows a kind of structural representation of first determination sub-module in the embodiment of the present invention four
Figure.Preferably, first determination sub-module 4042 can specifically include：First determination subelement 40422, for working as described
When the channel quality of preceding channel and the difference of first channel quality thresholds are more than the first difference threshold, the first son weighting is determined
The factor；Second determination subelement 40424, for the channel quality in the present channel and first channel quality thresholds
Difference be more than the second difference threshold, less than or equal to first difference threshold when, determine the second sub- weighted factor；3rd determines son
Unit 40426, for being less than or equal to institute in the channel quality of the present channel and the difference of first channel quality thresholds
When stating the second difference threshold, the 3rd sub- weighted factor is determined；Wherein, first difference threshold is more than the second difference door
Limit.
Correspondingly, second determining module 406, specifically can be used for accumulating correction result and determination according to history AMC
The first sub- weighted factor or the second sub- weighted factor or the 3rd sub- weighted factor, determine AMC correction values.
It is another preferable, reference picture 7, show a kind of structural representation of second determination sub-module in the embodiment of the present invention four
Figure.Preferably, second determination sub-module 4044 can specifically include：4th determination subelement 40442, for working as described
When the channel quality of preceding channel and the difference of the second channel quality threshold are more than three difference thresholds, the 4th son weighting is determined
The factor；5th determination subelement 40444, for the channel quality in the present channel and the second channel quality threshold
Difference be more than the 4th difference threshold, less than or equal to three difference threshold when, determine the 5th sub- weighted factor；6th determines son
Unit 40446, for being less than or equal to institute in the channel quality of the present channel and the difference of the second channel quality threshold
When stating four difference thresholds, the 6th sub- weighted factor is determined；Wherein, the 3rd difference threshold is more than the 4th difference door
Limit.
Correspondingly, second determining module 406, specifically can be used for accumulating correction result and determination according to history AMC
The 4th sub- weighted factor or the 5th sub- weighted factor or the 6th sub- weighted factor, determine AMC correction values.
It is another preferable, reference picture 8, show a kind of structural representation of 3rd determination sub-module in the embodiment of the present invention four
Figure.Preferably, the 3rd determination sub-module 4046 can specifically include：7th determination subelement 40462, for working as described
When the channel quality of preceding channel and the difference of the 3rd channel quality thresholds are more than five difference thresholds, the 7th son weighting is determined
The factor；8th determination subelement 40464, for the channel quality in the present channel and the 3rd channel quality thresholds
Difference be more than the 6th difference threshold, less than or equal to five difference threshold when, determine the 8th sub- weighted factor；9th determines son
Unit 40466, for being less than or equal to institute in the channel quality of the present channel and the difference of the 3rd channel quality thresholds
When stating six difference thresholds, the 9th sub- weighted factor is determined；Wherein, the 5th difference threshold is more than the 6th difference door
Limit.
Correspondingly, second determining module 406, specifically can be used for accumulating correction result and determination according to history AMC
The 7th sub- weighted factor or the 8th sub- weighted factor or the 9th sub- weighted factor, determine AMC correction values.
It should be noted that in the present embodiment, the history AMC accumulations correction result includes but are not limited to：First
AMC accumulations correction result, the 2nd AMC accumulation correction results and the 3rd AMC accumulation correction results.Correspondingly, described second determine
Module 406 can specifically include：4th determination sub-module 4062, for determine respectively the first AMC accumulation correction result with
The product of first weighted factor, the product of the 2nd AMC accumulation correction result and second weighted factor, described the
Three AMC accumulate the product of correction result and the 3rd weighted factor, obtain corresponding first result of product, the second result of product
With the 3rd result of product；5th determination sub-module 4064, for first result of product, the second result of product and the 3rd to be multiplied
Product result and be used as the AMC correction values.
In summary, a kind of Adaptive Modulation and Coding AMC adjustment systems described in the present embodiment, can be according to present channel
Channel quality and the first channel quality thresholds, second channel quality threshold and the 3rd channel quality thresholds difference, it is determined that
Corresponding weighted factor under each channel quality environment, and then according to the weighted factor of determination to each channel quality environment institute
Corresponding history AMC accumulations correction result is modified, and obtains final AMC correction values, and enter using obtained AMC correction values
Row traffic scheduling.It can be seen that in the present embodiment, when the channel quality of present channel is different or changes, the knot of AMC correction values
Fruit is dynamic change, and in other words, the AMC correction values determined by the present embodiment can be according to the present channel where terminal
Channel quality dynamic adjust so that the obtained AMC correction values of adjustment match with the scene after terminal movement, ensure AMC tune
Whole accuracy.
For device embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, it is related
Part illustrates referring to the part of embodiment of the method.
Each embodiment in this specification is described by the way of progressive, what each embodiment stressed be with
The difference of other embodiment, between each embodiment identical similar part mutually referring to.
Detailed Jie has been carried out to a kind of Adaptive Modulation and Coding AMC methods of adjustment provided by the present invention and system above
Continue, specific case used herein is set forth to the principle and embodiment of the present invention, and the explanation of above example is only
It is the method and its core concept for being used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to this hair
Bright thought, there will be changes in specific embodiments and applications, in summary, this specification content should not manage
Solve as limitation of the present invention.
Claims (12)
- A kind of 1. Adaptive Modulation and Coding AMC methods of adjustment, it is characterised in that including：Obtain the channel quality of the present channel of terminal；Believed respectively with the first channel quality thresholds, second channel quality threshold and the 3rd according to the channel quality of the present channel The difference of road quality threshold, determines weighted factor；Correction result and the weighted factor are accumulated according to history AMC, determine AMC correction values；Terminal data is scheduled according to the AMC correction values of determination.
- 2. according to the method for claim 1, it is characterised in that the channel quality according to the present channel respectively with The difference of first channel quality thresholds, second channel quality threshold and the 3rd channel quality thresholds, determines weighted factor；Including：According to the channel quality of the present channel and the difference of the first channel quality thresholds, the first weighted factor is determined；According to the channel quality of the present channel and the difference of second channel quality threshold, the second weighted factor is determined；According to the channel quality of the present channel and the difference of the 3rd channel quality thresholds, the 3rd weighted factor is determined.
- 3. according to the method for claim 2, it is characterised in that described according to the channel quality of the present channel and first The difference of channel quality thresholds, the first weighted factor is determined, including：When the channel quality of the present channel and the difference of first channel quality thresholds are more than the first difference threshold, really Fixed first sub- weighted factor；When the difference of channel quality and first channel quality thresholds of the present channel is more than the second difference threshold, is less than During equal to first difference threshold, the second sub- weighted factor is determined；When the channel quality of the present channel and the difference of first channel quality thresholds are less than or equal to second difference During thresholding, the 3rd sub- weighted factor is determined；Wherein, first difference threshold is more than second difference threshold；Correspondingly, it is described that correction result and the weighted factor are accumulated according to history AMC, AMC correction values are determined, including：Correction result and the first sub- weighted factor determined or the second sub- weighted factor are accumulated according to history AMC or the 3rd son adds Weight factor, determine AMC correction values.
- 4. according to the method for claim 2, it is characterised in that described according to the channel quality of the present channel and second The difference of channel quality thresholds, the second weighted factor is determined, including：When the channel quality of the present channel and the difference of the second channel quality threshold are more than three difference thresholds, really Fixed 4th sub- weighted factor；When the difference of channel quality and the second channel quality threshold of the present channel is more than the 4th difference threshold, is less than During equal to three difference threshold, the 5th sub- weighted factor is determined；When the channel quality of the present channel and the difference of the second channel quality threshold are less than or equal to the 4th difference During thresholding, the 6th sub- weighted factor is determined；Wherein, the 3rd difference threshold is more than the 4th difference threshold；Correspondingly, it is described that correction result and the weighted factor are accumulated according to history AMC, AMC correction values are determined, including：Correction result and the 4th sub- weighted factor determined or the 5th sub- weighted factor are accumulated according to history AMC or the 6th son adds Weight factor, determine AMC correction values.
- 5. according to the method for claim 2, it is characterised in that described according to the channel quality of the present channel and the 3rd The difference of channel quality thresholds, the 3rd weighted factor is determined, including：When the channel quality of the present channel and the difference of the 3rd channel quality thresholds are more than five difference thresholds, really Fixed 7th sub- weighted factor；When the difference of channel quality and the 3rd channel quality thresholds of the present channel is more than the 6th difference threshold, is less than During equal to five difference threshold, the 8th sub- weighted factor is determined；When the channel quality of the present channel and the difference of the 3rd channel quality thresholds are less than or equal to the 6th difference During thresholding, the 9th sub- weighted factor is determined；Wherein, the 5th difference threshold is more than the 6th difference threshold；Correspondingly, it is described that correction result and the weighted factor are accumulated according to history AMC, AMC correction values are determined, including：Correction result and the 7th sub- weighted factor determined or the 8th sub- weighted factor are accumulated according to history AMC or the 9th son adds Weight factor, determine AMC correction values.
- 6. according to the method described in claim any one of 2-5, it is characterised in that the history AMC accumulations correction result includes： First AMC accumulations correction result, the 2nd AMC accumulation correction results and the 3rd AMC accumulation correction results；Wherein, it is described that correction result and the weighted factor are accumulated according to history AMC, AMC correction values are determined, including：Determine that the product of the first AMC accumulation correction results and first weighted factor, the 2nd AMC are accumulated and repaiied respectively The product of positive result and second weighted factor, the 3rd AMC accumulation correction results multiply with the 3rd weighted factor Product, obtain corresponding first result of product, the second result of product and the 3rd result of product；Using first result of product, the second result of product and the 3rd result of product and as the AMC correction values.
- 7. a kind of Adaptive Modulation and Coding AMC adjusts system, it is characterised in that including：Acquisition module, the channel quality of the present channel for obtaining terminal；First determining module, for being believed respectively with the first channel quality thresholds, second according to the channel quality of the present channel The difference of road quality threshold and the 3rd channel quality thresholds, determines weighted factor；Second determining module, for accumulating correction result and the weighted factor according to history AMC, determine AMC correction values；Scheduler module, terminal data is scheduled for the AMC correction values according to determination.
- 8. system according to claim 7, it is characterised in that first determining module, including：First determination sub-module, for the channel quality according to the present channel and the difference of the first channel quality thresholds, really Fixed first weighted factor；Second determination sub-module, for the difference of the channel quality according to the present channel and second channel quality threshold, really Fixed second weighted factor；3rd determination sub-module, for the channel quality according to the present channel and the difference of the 3rd channel quality thresholds, really Fixed 3rd weighted factor.
- 9. system according to claim 8, it is characterised in that first determination sub-module, including：First determination subelement is big for the channel quality and the difference of first channel quality thresholds in the present channel When the first difference threshold, the first sub- weighted factor is determined；Second determination subelement is big for the channel quality and the difference of first channel quality thresholds in the present channel In the second difference threshold, less than or equal to first difference threshold when, determine the second sub- weighted factor；3rd determination subelement is small for the channel quality and the difference of first channel quality thresholds in the present channel When equal to second difference threshold, the 3rd sub- weighted factor is determined；Wherein, first difference threshold is more than second difference threshold；Correspondingly, second determining module, for according to history AMC accumulate correction result and determine first son weighting because Son or the second sub- weighted factor or the 3rd sub- weighted factor, determine AMC correction values.
- 10. system according to claim 8, it is characterised in that second determination sub-module, including：4th determination subelement is big for the channel quality and the difference of the second channel quality threshold in the present channel When three difference thresholds, the 4th sub- weighted factor is determined；5th determination subelement is big for the channel quality and the difference of the second channel quality threshold in the present channel In the 4th difference threshold, less than or equal to three difference threshold when, determine the 5th sub- weighted factor；6th determination subelement is small for the channel quality and the difference of the second channel quality threshold in the present channel When equal to four difference threshold, the 6th sub- weighted factor is determined；Wherein, the 3rd difference threshold is more than the 4th difference threshold；Correspondingly, second determining module, for according to history AMC accumulate correction result and determine the 4th son weighting because Son or the 5th sub- weighted factor or the 6th sub- weighted factor, determine AMC correction values.
- 11. system according to claim 8, it is characterised in that the 3rd determination sub-module, including：7th determination subelement is big for the channel quality and the difference of the 3rd channel quality thresholds in the present channel When five difference thresholds, the 7th sub- weighted factor is determined；8th determination subelement is big for the channel quality and the difference of the 3rd channel quality thresholds in the present channel In the 6th difference threshold, less than or equal to five difference threshold when, determine the 8th sub- weighted factor；9th determination subelement is small for the channel quality and the difference of the 3rd channel quality thresholds in the present channel When equal to six difference threshold, the 9th sub- weighted factor is determined；Wherein, the 5th difference threshold is more than the 6th difference threshold；Correspondingly, second determining module, for according to history AMC accumulate correction result and determine the 7th son weighting because Son or the 8th sub- weighted factor or the 9th sub- weighted factor, determine AMC correction values.
- 12. according to the system described in claim any one of 8-11, it is characterised in that the history AMC accumulates correction result bag Include：First AMC accumulations correction result, the 2nd AMC accumulation correction results and the 3rd AMC accumulation correction results；Wherein, second determining module, including：4th determination sub-module, for determining multiplying for the first AMC accumulation correction result and first weighted factor respectively The product of long-pending, described 2nd AMC accumulation correction result and second weighted factor, the 3rd AMC accumulation correction results with The product of 3rd weighted factor, obtain corresponding first result of product, the second result of product and the 3rd result of product；5th determination sub-module, for using first result of product, the second result of product and the 3rd result of product and as The AMC correction values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391255.4A CN107465484B (en) | 2016-06-03 | 2016-06-03 | A kind of Adaptive Modulation and Coding AMC method of adjustment and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391255.4A CN107465484B (en) | 2016-06-03 | 2016-06-03 | A kind of Adaptive Modulation and Coding AMC method of adjustment and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107465484A true CN107465484A (en) | 2017-12-12 |
| CN107465484B CN107465484B (en) | 2019-11-22 |
Family
ID=60545781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610391255.4A Active CN107465484B (en) | 2016-06-03 | 2016-06-03 | A kind of Adaptive Modulation and Coding AMC method of adjustment and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107465484B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873687A (en) * | 2009-04-23 | 2010-10-27 | 大唐移动通信设备有限公司 | Power control method and device of high-speed physical downlink shared channel (HS-PDSCH) |
| CN101990288A (en) * | 2009-08-04 | 2011-03-23 | 中兴通讯股份有限公司 | Power adjustment method and base station of orthogonal frequency division multiplexing (OFDM) system |
| CN102104442A (en) * | 2009-12-17 | 2011-06-22 | 中兴通讯股份有限公司 | Channel quality indicator correction method and device |
| CN102377513A (en) * | 2010-08-24 | 2012-03-14 | 中兴通讯股份有限公司 | Adaptive modulation and coding method and device |
| CN102761397A (en) * | 2011-04-25 | 2012-10-31 | 中国移动通信集团重庆有限公司 | CQI regulation method, device and system |
| KR101264769B1 (en) * | 2009-12-17 | 2013-05-20 | 한국전자통신연구원 | Power controlled adaptive modulation and coding scheme in the satellite communications system |
| CN104320856A (en) * | 2014-10-20 | 2015-01-28 | 大唐移动通信设备有限公司 | DRX (Discontinuous Reception) state terminal scheduling method and apparatus |
| CN109245849A (en) * | 2017-07-11 | 2019-01-18 | 中国移动通信有限公司研究院 | modulation coding method, device, base station and computer readable storage medium |
-
2016
- 2016-06-03 CN CN201610391255.4A patent/CN107465484B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873687A (en) * | 2009-04-23 | 2010-10-27 | 大唐移动通信设备有限公司 | Power control method and device of high-speed physical downlink shared channel (HS-PDSCH) |
| CN101990288A (en) * | 2009-08-04 | 2011-03-23 | 中兴通讯股份有限公司 | Power adjustment method and base station of orthogonal frequency division multiplexing (OFDM) system |
| CN102104442A (en) * | 2009-12-17 | 2011-06-22 | 中兴通讯股份有限公司 | Channel quality indicator correction method and device |
| KR101264769B1 (en) * | 2009-12-17 | 2013-05-20 | 한국전자통신연구원 | Power controlled adaptive modulation and coding scheme in the satellite communications system |
| CN102377513A (en) * | 2010-08-24 | 2012-03-14 | 中兴通讯股份有限公司 | Adaptive modulation and coding method and device |
| CN102761397A (en) * | 2011-04-25 | 2012-10-31 | 中国移动通信集团重庆有限公司 | CQI regulation method, device and system |
| CN104320856A (en) * | 2014-10-20 | 2015-01-28 | 大唐移动通信设备有限公司 | DRX (Discontinuous Reception) state terminal scheduling method and apparatus |
| CN109245849A (en) * | 2017-07-11 | 2019-01-18 | 中国移动通信有限公司研究院 | modulation coding method, device, base station and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107465484B (en) | 2019-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103997743B (en) | Resource allocation methods based on available capacity in a kind of cognitive radio system | |
| CN110198180B (en) | Link self-adaptive adjustment method, device and computer readable storage medium | |
| JP2011507387A (en) | Modulation and coding scheme selection method based on adaptive channel quality value | |
| CN101399630A (en) | Adaptive modulation coding method and apparatus | |
| CN105323770A (en) | Expansion estimation method and expansion estimation device of wireless communication system | |
| CN107920031A (en) | Access bandwidth self-adapting regulation method and device | |
| US20180026741A1 (en) | Wireless communication control method and device | |
| CN104486042A (en) | Method and system for switching multi-input and multi-output modes of LTE system | |
| CN105517181A (en) | Carrier wave resource processing method and device of unauthorized carrier waves and transmission node | |
| CN103546244A (en) | Adaptive modulation encoding method and device | |
| CN105228234A (en) | Interference control method and equipment, base station | |
| US7447145B2 (en) | Data communication device selecting modulation method with an appropriate threshold value in adaptive modulation | |
| CN104468025A (en) | Channel quality indicator selecting method and device | |
| CN104640227A (en) | Downlink resource scheduling method for hybrid service in LTE (long term evolution) system | |
| CN107465484A (en) | A kind of Adaptive Modulation and Coding AMC methods of adjustment and system | |
| Abiko et al. | Proposal of allocating radio resources to multiple slices in 5G using deep reinforcement learning | |
| CN102594512B (en) | Continuous quality improvement (CQI) forecasting method based on channel reciprocity compensation and base station | |
| CN105430730B (en) | Determine the method, apparatus and system and network access device of transmission power collection | |
| CN106797657B (en) | Signal transmission method and device | |
| CN101729474B (en) | Channel quality index feedback method and receiver | |
| CN103167522B (en) | Method for performing spectrum sensing and equipment | |
| CN106487475B (en) | CQI acquisition methods and device | |
| CN111212009B (en) | Spectrum efficiency enhancing method and system | |
| CN104468052B (en) | The selection method of channel quality indication (CQI) information | |
| CN115730676A (en) | Adaptive code modulation method, device, electronic equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |