CN106921465A - CQI threshold regulating methods and device - Google Patents
CQI threshold regulating methods and device Download PDFInfo
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- CN106921465A CN106921465A CN201510997818.XA CN201510997818A CN106921465A CN 106921465 A CN106921465 A CN 106921465A CN 201510997818 A CN201510997818 A CN 201510997818A CN 106921465 A CN106921465 A CN 106921465A
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
A kind of CQI threshold regulating methods and device, methods described include：Use the information of the signal quality of corresponding each the CQI gear of sliding window method statistical signal；According to described each corresponding filtering factor of CQI gears, the information to the signal quality of each CQI gear is filtered；Information by the information of the signal quality of filtered each CQI gear respectively with the preset signals quality of respective notch is compared, and obtains comparative result, and it is k-th gear to choose the CQI gears corresponding to the value of maximum absolute value in the comparative result；Respectively according to kth -1, described k-th and+1 comparative result of CQI gears of kth, corresponding adjusting step is calculated；According to the adjusting step and the relation of default adjusting step, the thresholding of k-th CQI gears is correspondingly adjusted.The accuracy of CQI thresholdings adjustment can be improved using such scheme.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of CQI threshold regulating methods and device.
Background technology
In Modern Communication System, user equipment generally needs to report signal quality to indicate (Channel
Quality Indicator, CQI) base station is given, to allow base station according to the CQI, and with reference to modulation
The mode of coding schedule (Modulation and Coding Scheme, MCS) determination data modulation and transmission
Speed.Usual user equipment (User Equipment, UE) is estimated by channel quality, obtains
To such as signal to noise ratio (SIGNAL-NOISE RATIO, SNR) and mutual information (Mutual Information,
) etc. MI the parameter of reflection channel quality, is then compared the parameter value with the threshold value that emulation is obtained
Compared with obtaining final CQI.
Because the performance of UE is depending on several factors such as channel estimation errors and noise estimation errors, and these
Error shows difference under different external condition, so the emulation thresholding of CQI can exist in some cases
With the unmatched situation of receiver performance.
At present, the Block Error Rate that UE lateral roots are obtained according to statistics carries out unified adjustment to the thresholding of CQI gears.
But, make to adjust CQI thresholdings with the aforedescribed process, may cause table tennis Adjustment effect repeatedly occur,
The accuracy of adjustment is low.
The content of the invention
The problem that the present invention is solved is how to improve the accuracy of CQI thresholdings adjustment.
To solve the above problems, the present invention provides a kind of CQI threshold regulating methods, and the CQI is provided with
N number of gear, each gear one thresholding of correspondence, the thresholding of the CQI increases with the rising of gear,
Methods described includes：
Signal is received, and counts total signal quality information of the signal；
When the quantity of the signal is more than preset first threshold value, and total signal quality information more than pre-
If during Second Threshold, the signal quality of corresponding each the CQI gear of the signal is counted using sliding window method
Information；
The information of the signal quality according to each CQI gear, is that described each CQI gear sets right
The filtering factor answered；
According to described each corresponding filtering factor of CQI gears, to the signal matter of each CQI gear
The information of amount is filtered, and obtains the information of the signal quality of filtered each CQI gear；
The information of the signal quality of filtered each CQI gear is default with respective notch respectively
The information of signal quality is compared, and obtains comparative result, chooses maximum absolute value in the comparative result
Value corresponding to CQI gears be k-th gear, k is the order of gear, and N >=k >=1；
Respectively according to kth -1, described k-th and+1 comparative result of CQI gears of kth, calculate
Obtain the first adjusting step corresponding to -1 CQI gear of the kth, k-th CQI gears institute
Corresponding second adjusting step, the 3rd adjusting step corresponding to+1 CQI gear of the kth；
According to first, second and third adjusting step and the relation of default adjusting step, judge whether
It is true to set the state being adjusted to the CQI thresholdings of the kth -1 ,+1 gear of kth and kth；
The state being adjusted according to the CQI thresholdings to the kth -1 ,+1 gear of kth and kth is set
As a result, the thresholding of k-th CQI gears is correspondingly adjusted.
Alternatively, the pass according to first, second and third adjusting step and default adjusting step
System, judges whether to set be adjusted the CQI thresholdings of the kth -1 ,+1 gear of kth and kth
State is true, including：
When first adjusting step is more than the default adjusting step, set to -1 CQI of the kth
The state that the thresholding of gear is adjusted is true；
When second adjusting step is more than the default adjusting step, set to k-th CQI
The state that the thresholding of gear is adjusted is true；
When the 3rd adjusting step is more than the default adjusting step, set to+1 CQI of the kth
The state that the thresholding of gear is adjusted is true.
Alternatively, the basis is adjusted to the CQI thresholdings of the kth -1 ,+1 gear of kth and kth
Whole state sets result, correspondingly adjusts the thresholding of k-th CQI gears, including：
When the state adjusted in the CQI thresholdings of corresponding gear is true, according to the CQI gears from high to low
Order, the step of being adjusted to the thresholding of the CQI is performed successively.
Alternatively, the basis is adjusted to the CQI thresholdings of the kth -1 ,+1 gear of kth and kth
Whole state sets result, correspondingly adjusts the thresholding of k-th CQI gears, including：
When the state that the CQI thresholdings set to+1 gear of the kth are adjusted is true, judge according to institute
The CQI thresholdings of+1 gear of the kth after the adjustment of the 3rd adjusting step are stated, is adjusted with according to described second
Whether the difference of the k-th gear CQI thresholdings after synchronizing adjustment long is more than default 3rd threshold value；
The CQI thresholdings of+1 gear of the kth after adjustment and k-th gear CQI
When the difference of limit is more than three threshold value, by the CQI thresholdings of kth+1 to N number of gear according to described
3rd adjusting step is adjusted；
The CQI thresholdings of+1 gear of the kth after adjustment and k-th gear CQI
When the difference of limit is less than three threshold value, the CQI thresholdings to N number of gear are not adjusted.
Alternatively, the basis is adjusted to the CQI thresholdings of the kth -1 ,+1 gear of kth and kth
Whole state sets result, correspondingly adjusts the thresholding of k-th CQI gears, including：
When set to the state of the CQI thresholdings adjustment of k-th gear is true when, judge that described second adjusts
Step-length it is positive and negative；
When second adjusting step is timing, k-th after being adjusted according to second adjusting step
The CQI thresholdings of gear, with adjusted according to the 3rd adjusting step after CQI of+1 gear of kth
The difference of limit, is worth as a comparison；
When second adjusting step is to bear, k-th after being adjusted according to second adjusting step
The CQI thresholdings of gear, with adjusted according to first adjusting step after CQI of -1 gear of kth
The difference of limit, is worth as a comparison；
When the reduced value is more than default reduced value, and have determined that to -1 gear of the kth+1 and kth
When CQI thresholdings are adjusted, the CQI of k-th gear is adjusted according to second adjusting step
Thresholding；
When the reduced value is more than the default reduced value, and have determined that not to the kth+1 or kth -1
When the CQI thresholdings of individual gear are adjusted, the CQI thresholdings of N number of gear are adjusted according to described second
Synchronizing is long to be adjusted；
The default reduced value is less than when the reduced value is met, and is had determined that to the kth+1 and kth -1
When the CQI thresholdings of individual gear are adjusted, the CQI thresholdings to k-th gear are not adjusted；
When meeting the reduced value less than the default reduced value, and have determined that not to the kth+1 or the
When the CQI thresholdings of k-1 gear are adjusted, if second adjusting step is just, by kth to N
The CQI thresholdings of individual gear are adjusted according to second adjusting step, if second adjusting step
It is negative, the CQI thresholdings of 1 to k gear is adjusted according to second adjusting step.
Alternatively, the basis is to the CQI thresholdings of the kth -1 ,+1 gear of kth and kth
The setting result of no adjustment, correspondingly adjusts the thresholding of k-th CQI gears, including：
When the state that the CQI thresholdings set to -1 gear of kth are adjusted is true, by 1 to kth -1
The CQI thresholdings of individual gear are adjusted according to first adjusting step.
Alternatively, methods described also includes：After the CQI thresholdings to any gear are adjusted, by the tune
The corresponding statistical information of CQI thresholdings and count information after whole are initialized to zero.
Alternatively, the information of the signal quality is Block Error Rate.
Alternatively, the N is 15.
A kind of CQI thresholdings adjusting apparatus are the embodiment of the invention provides, the CQI is provided with N number of gear,
Each gear one thresholding of correspondence, the thresholding of the CQI increases with the rising of gear, described device
Including：
Receiving unit, is suitable to receive signal；
First statistic unit, is suitable to count total signal quality information of the signal；
Second statistic unit, is suitable to quantity when the signal more than preset first threshold value, and described total
When signal quality information is more than default Second Threshold, corresponding each CQI of the signal is counted using sliding window method
The information of the signal quality of gear；
Filtering factor setting unit, is suitable to the information of the signal quality according to each CQI gear, is
Described each CQI gear sets corresponding filtering factor；
Filter unit, is suitable to according to described each corresponding filtering factor of CQI gears, to described each CQI
The information of the signal quality of gear is filtered, and obtains the signal quality of filtered each CQI gear
Information；
Comparing unit, be suitable to by the information of the signal quality of filtered each CQI gear respectively with
The information of the preset signals quality of respective notch is compared, and obtains comparative result；
Unit is chosen, is suitable to choose the CQI gears corresponding to the value of maximum absolute value in the comparative result
It is k-th gear, k is the order of gear, and N >=k >=1；
Computing unit, is suitable to respectively according to kth -1, described k-th and+1 CQI gear of kth
Comparative result, is calculated the first adjusting step corresponding to -1 CQI gear of the kth, the kth
The second adjusting step corresponding to individual CQI gears, the 3rd tune corresponding to+1 CQI gear of the kth
Synchronizing is long；
State set unit, is suitable to according to first, second and third adjusting step and default adjustment step
Relation long, judge whether to set is carried out to the CQI thresholdings of the kth -1 ,+1 gear of kth and kth
The state of adjustment is true；
Adjustment unit, is suitable to be carried out according to the CQI thresholdings to the kth -1 ,+1 gear of kth and kth
The state of adjustment sets result, correspondingly adjusts the thresholding of k-th CQI gears.
Alternatively, the state set unit, including：
First state sets subelement, is suitable to be more than the default adjusting step when first adjusting step
When, it is true to set the state being adjusted to the thresholding of -1 CQI gear of the kth；
Second state sets subelement, is suitable to be more than the default adjusting step when second adjusting step
When, it is true to set the state being adjusted to the thresholding of k-th CQI gears；
The third state sets subelement, is suitable to be more than the default adjusting step when the 3rd adjusting step
When, it is true to set the state being adjusted to the thresholding of+1 CQI gear of the kth.
Alternatively, the adjustment unit, when the state that the CQI thresholdings being suitable in corresponding gear are adjusted is true,
According to the CQI gears from high to low order, perform what the thresholding of the CQI was adjusted successively
Step.
Alternatively, the adjustment unit, including：
First judgment sub-unit, is suitable to the shape adjusted when the CQI thresholdings set to+1 gear of the kth
When state is true, CQI of+1 gear of the kth after being adjusted according to the 3rd adjusting step is judged
Limit, with according to second adjusting step adjust after k-th gear CQI thresholdings difference whether
More than default 3rd threshold value；
First adjustment subelement, be suitable to+1 gear of the kth when the adjustment after CQI thresholdings and
When the difference of k-th gear CQI thresholdings is more than three threshold value, by kth+1 to N number of gear
CQI thresholdings be adjusted according to the 3rd adjusting step, the kth+1 after the adjustment
When the CQI thresholdings of individual gear are less than three threshold value with the difference of k-th gear CQI thresholdings,
The CQI thresholdings to N number of gear are not adjusted.
Alternatively, the adjustment unit, including：
Second judgment sub-unit, it is true to be suitable to when setting to the state of k-th CQI thresholdings adjustment of gear
When, judge the positive and negative of second adjusting step；
Reduced value computation subunit, is suitable to when second adjusting step is timing, will be according to described second
The CQI thresholdings of k-th gear after adjusting step adjustment, after being adjusted according to the 3rd adjusting step
+ 1 gear of kth CQI thresholdings difference, be worth as a comparison, when second adjusting step is negative
When, the CQI thresholdings of k-th gear after being adjusted according to second adjusting step, and according to described
The difference of the CQI thresholdings of -1 gear of kth after the adjustment of the first adjusting step, is worth as a comparison；
Second adjustment subelement, is suitable to be more than default reduced value when the reduced value, and have determined that to described
When the CQI thresholdings of -1 gear of kth+1 and kth are adjusted, adjusted according to second adjusting step
The CQI thresholdings of whole k-th gear, it is when the reduced value is more than the default reduced value and true
When the fixed CQI thresholdings not to -1 gear of the kth+1 or kth are adjusted, by N number of gear
CQI thresholdings be adjusted according to second adjusting step；
3rd adjustment subelement, is suitable to when meeting the reduced value less than the default reduced value, and true
When the fixed CQI thresholdings to -1 gear of the kth+1 and kth are adjusted, not to described k-th
The CQI thresholdings of gear are adjusted, and the default reduced value is less than when the reduced value is met, and true
When the fixed CQI thresholdings not to -1 gear of the kth+1 or kth are adjusted, if second adjustment
Step-length is just, the CQI thresholdings of kth to N number of gear to be adjusted according to second adjusting step,
If second adjusting step is negative, 1 to the k CQI thresholding of gear is adjusted according to described second
Synchronizing is long to be adjusted.
Alternatively, the adjustment unit, including：
4th adjustment subelement, be suitable to be to the state of the CQI thresholdings of -1 gear of kth adjustment when setting
When true, the CQI thresholdings of -1 gear of 1 to kth are adjusted according to first adjusting step.
Alternatively, described device also includes：
Initialization unit, is suitable to after the CQI thresholdings to any gear are adjusted, by the CQI after the adjustment
The corresponding statistical information of thresholding and count information are initialized to zero.
Alternatively, the information of the signal quality is Block Error Rate.
Alternatively, the N is 15.
Compared with prior art, technical scheme has advantages below：
By the way that the information of the signal quality of filtered each CQI gear is default with respective notch respectively
The information of signal quality is compared, and obtains comparative result, chooses maximum absolute value in the comparative result
Value corresponding to CQI gears be k-th gear, then respectively according to kth -1, described k-th
And+1 comparative result of CQI gears of kth, its corresponding adjusting step is accordingly calculated, and judge whether
It is true to set to the state that the CQI thresholdings of the kth -1 ,+1 gear of kth and kth are adjusted, so
Correspondingly adjust the thresholding of k-th CQI gears afterwards, by thus according to it is actually detected to signal matter
The information of amount and the relation of the information of default signal quality, accordingly determine the adjustment of gear CQI thresholdings
Size, it is to avoid directly the thresholding to each gear CQI carries out unified adjustment, can be more targeted
Ground is adjusted to CQI thresholdings, therefore table tennis Adjustment effect that can be repeatedly, improve the adjustment of CQI thresholdings
Accuracy.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of the method for the CQI thresholdings adjustment in the embodiment of the present invention；
Fig. 2 is a kind of structural representation of the CQI thresholdings adjusting apparatus in the embodiment of the present invention；
Fig. 3 is the structural representation of the device of another CQI thresholdings adjustment in the embodiment of the present invention.
Specific embodiment
Because the performance of UE is depending on several factors such as channel estimation errors and noise estimation errors, and these
Error shows difference under different external condition, so the emulation thresholding of CQI can be deposited in some cases
With the unmatched situation of receiver performance.At present, the Block Error Rate that UE lateral roots are obtained according to statistics is to CQI
The thresholding of gear carries out unified adjustment.
But, make to adjust CQI thresholdings with the aforedescribed process, may cause table tennis adjustment effect repeatedly occur
Really, and adjustment accuracy it is low.
To solve the above problems, the method that the embodiment of the invention provides the adjustment of CQI thresholdings, by that will filter
The information of the signal quality of each the CQI gear after ripple respectively with the letter of the preset signals quality of respective notch
Breath is compared, and obtains comparative result, chooses corresponding to the value of maximum absolute value in the comparative result
CQI gears are k-th gear, then respectively according to kth -1, described k-th and+1 CQI of kth
The comparative result of gear, accordingly calculates its corresponding adjusting step, and judge whether to set to the kth -1,
The state that the CQI thresholdings of+1 gear of kth and kth are adjusted is true, is then correspondingly adjusted described
K-th thresholding of CQI gears, by thus according to it is actually detected to signal quality information with it is default
The relation of the information of signal quality, accordingly determines being sized for gear CQI thresholdings, it is to avoid directly right
The thresholding of each gear CQI carries out unified adjustment, and more targetedly CQI thresholdings can be carried out
Adjustment, therefore table tennis Adjustment effect that can be repeatedly, improve the accuracy of CQI thresholdings adjustment.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings
Specific embodiment of the invention is described in detail.
Reference picture 1, in an embodiment of the present invention, can be entered using following method to CQI threshold values
Row adjustment：
In specific implementation, for convenience of description, if CQI is provided with N number of gear, each gear correspondence one
Individual thresholding, the thresholding of the CQI increases with the rising of gear.
S11：Signal is received, and counts total signal quality information of the signal.
In specific implementation, in order to know the quality condition of channel, signal can be received, and count described
Total signal quality information of signal.
In specific implementation, the information of the signal quality can be Block Error Rate.Certainly, the signal matter
The information of amount can also be other can reflect signal quality parameter, those skilled in the art can be with root
According to actual conditions, correspondingly set.The signified design parameter of the information of signal quality, not to this
Invention constitutes any limitation.
In specific implementation, the N can be 15.
S12：When the quantity of the signal is more than preset first threshold value, and total signal quality information is big
When default Second Threshold, the signal matter of corresponding each the CQI gear of the signal is counted using sliding window method
The information of amount.
In specific implementation, when the quantity of the signal is more than preset first threshold value, and total signal
When quality information is more than default Second Threshold, it is possible to use sliding window method counts corresponding each CQI of the signal
The information of the signal quality of gear.So, it is possible on the premise of channel quality is ensured, pass through
According to the actual reception condition of signal, sliding window size is adjusted, to take into account the speed of balanced signal transmission.
S13：The information of the signal quality according to each CQI gear, is described each CQI gear
Corresponding filtering factor is set.
In specific implementation, because the statistics of the information of the signal quality to each CQI gear has in real time
And randomness, in order to improve the degree of accuracy of the information of signal quality, can be according to described each CQI gear
Signal quality information, be targetedly that described each CQI gear sets corresponding filtering factor.
S14：According to described each corresponding filtering factor of CQI gears, to each CQI gear
The information of signal quality is filtered, and obtains the information of the signal quality of filtered each CQI gear.
In specific implementation, it is possible to use the filtering factor obtained in S13, to each CQI gear
The information of signal quality is filtered, and so, can cause to count the quality of the CQI gears for obtaining
Information more smooth.
S15：By the information of the signal quality of filtered each CQI gear respectively with respective notch
The information of preset signals quality is compared, and obtains comparative result, chooses absolute value in the comparative result
CQI gears corresponding to maximum value are k-th gear, and k is the order of gear, and N >=k >=1.
In specific implementation, in order to know the RST of CQI gears, can be described filtered every
Information of the information of the signal quality of individual CQI gears respectively with the preset signals quality of respective notch is compared
Compared with, N number of comparative result is obtained, and from N number of comparative result, choose and described N number of compare knot
CQI gears in fruit corresponding to the value of maximum absolute value, so, just have found the worst CQI of signal
Gear.For convenience of description, it can be assumed that in N number of comparative result corresponding to the value of maximum absolute value
Gear is k-th gear, and k is the order of gear, and N >=k >=1.
S16：Respectively according to kth -1, described k-th and+1 comparative result of CQI gears of kth,
It is calculated the first adjusting step corresponding to -1 CQI gear of the kth, described k-th CQI grades
The second adjusting step corresponding to position, the 3rd adjusting step corresponding to+1 CQI gear of the kth.
In specific implementation, because the gear on each CQI gears periphery is to the CQI thresholdings tool of the gear
Have an impact, therefore after have chosen k-th CQI thresholding of gear as regulating object, its week can be calculated
The degree being adjusted the need for the gear on side, specifically, can be according to -1 CQI gear of kth
Comparative result, is calculated the first adjusting step corresponding to -1 CQI gear of the kth, then root
According to the comparative result of k-th CQI gears, it is calculated corresponding to k-th CQI gears
Second adjusting step, and according to+1 comparative result of CQI gears of the kth, be calculated described
The 3rd adjusting step corresponding to+1 CQI gear of kth.
S17：According to first, second and third adjusting step and the relation of default adjusting step, judge
Whether it is true to set the state being adjusted to the CQI thresholdings of the kth -1 ,+1 gear of kth and kth.
In specific implementation, due to the relation of adjusting step and the default adjusting step of each CQI gear,
The appropriate level of the thresholding of the CQI gears can be reflected, therefore can be according to described first, second and
Three adjusting steps and the relation of default adjusting step, judge whether to set to the kth -1, kth and kth+1
The state that the CQI thresholdings of individual gear are adjusted is true.
In an embodiment of the present invention, when first adjusting step is more than the default adjusting step,
It is true that the state being adjusted to the thresholding of -1 CQI gear of the kth can be set.
In an alternative embodiment of the invention, when second adjusting step is more than the default adjusting step,
It is true that the state being adjusted to the thresholding of k-th CQI gears can be set.
In still another embodiment of the process, when the 3rd adjusting step is more than the default adjusting step,
It is true that the state being adjusted to the thresholding of+1 CQI gear of the kth can be set.
S18：According to the shape that the CQI thresholdings to the kth -1 ,+1 gear of kth and kth are adjusted
State sets result, correspondingly adjusts the thresholding of k-th CQI gears.
In specific implementation, can be according to the CQI thresholdings to the kth -1 ,+1 gear of kth and kth
The state being adjusted sets result, targetedly accordingly adjusts the thresholding of k-th CQI gears,
Such that it is able to obtain suitable CQI thresholdings.
When the state for there are more than one CQI thresholdings to be adjusted is arranged to genuine, one is can specify that
The order of individual thresholding adjustment.In an embodiment of the present invention, the shape for being adjusted in the CQI thresholdings of corresponding gear
When state is true, can successively be performed to the CQI's according to the CQI gears from high to low order
The step of thresholding is adjusted.Such as, if k-th gear is adjusted with the CQI thresholdings of -1 gear of kth
When whole state is true, the step of first carrying out the thresholding corresponding to k-th gear and adjust, hold again afterwards
The step of thresholding corresponding to -1 gear of row kth is adjusted.
In an embodiment of the present invention, when the state that the CQI thresholdings set to+1 gear of kth are adjusted is
It is as follows with the corresponding step that the thresholding of the CQI of+1 gear of the kth is adjusted when true：
It is possible, firstly, to judge the CQI of+1 gear of the kth after being adjusted according to the 3rd adjusting step
Thresholding, be with according to the difference of the k-th gear CQI thresholdings after second adjusting step adjustment
It is no more than default 3rd threshold value, reason for this is that ensureing that gear keeps certain corresponding relation with thresholding,
I.e. gear is higher, and corresponding CQI is bigger.
Then, if the CQI thresholdings of+1 gear of the kth after the adjustment meet and the kth
The difference of individual gear CQI thresholdings is more than the 3rd threshold value, can be by the CQI of kth+1 to N number of gear
Thresholding is adjusted according to the 3rd adjusting step, if+1 shelves of the kth after the adjustment
The CQI thresholdings of position are unsatisfactory for the difference with k-th gear CQI thresholdings less than the 3rd threshold value
During condition, the CQI thresholdings of N number of gear can not be directly adjusted.
In an alternative embodiment of the invention, when setting is to the state of k-th CQI thresholdings adjustment of gear
It is as follows with the corresponding step that the thresholding of the CQI of k-th gear is adjusted when true：
First, it is determined that second adjusting step is positive and negative, then according to second adjusting step just
It is negative, a different definition is done to reduced value.
If for example, second adjusting step is for just, reduced value is to be adjusted according to second adjusting step
The CQI thresholdings of k-th gear after whole, with according to the 3rd adjusting step adjust after kth+1
The difference of the CQI thresholdings of gear；If second adjusting step is negative, the reduced value is according to institute
The CQI thresholdings of k-th gear after the adjustment of the second adjusting step are stated, and according to first adjusting step
The difference of the CQI thresholdings of -1 gear of kth after adjustment.
Then, the reduced value can be compared with the default reduced value for pre-setting, and according to than
Relatively result, it is determined that the specific regulation scheme being adjusted to CQI thresholdings.Such as can be in the reduced value
More than default reduced value, and have determined that the CQI thresholdings of -1 gear of the kth+1 and kth are carried out
In the case of adjustment, the CQI thresholdings of k-th gear are adjusted according to second adjusting step, and
The CQI thresholdings to other gears are not adjusted, and if the reduced value be more than the default reduced value,
And under conditions of meeting and having determined that the CQI thresholdings of -1 gear of the kth+1 or kth are not adjusted,
The CQI thresholdings of N number of gear are adjusted according to second adjusting step.
For example, being less than the default reduced value in the reduced value, and have determined that to the kth+1 and the
When the CQI thresholdings of k-1 gear are adjusted, can not be to the CQI thresholdings of k-th gear
It is adjusted, and when meeting the reduced value less than the default reduced value, and has determined that not to described the
When the CQI thresholdings of -1 gear of k+1 or kth are adjusted, by the side corresponding to second adjusting step
The CQI thresholdings of upward gear are adjusted, as：If second adjusting step is just, just
The CQI thresholdings of kth to N number of gear are adjusted according to second adjusting step, if described
Second adjusting step is negative, 1 to the k CQI thresholding of gear can be adjusted according to described second
Step-length is adjusted.
In still another embodiment of the process, when the state that the CQI thresholdings set to -1 gear of kth are adjusted
When being true, the corresponding step being adjusted with the thresholding of the CQI of -1 gear of the kth is：By the 1st
CQI thresholdings to -1 gear of kth are adjusted according to first adjusting step.
In specific implementation, in order to avoid this CQI thresholdings adjustment process is caused not just to adjustment next time
True influence, can be after the CQI thresholdings adjustment to any gear, by the CQI thresholdings after the adjustment
Corresponding statistical information and count information are initialized to zero.
To cause that those skilled in the art more fully understand and realize the present invention, it is also provided below can be real
The device of existing above-mentioned CQI threshold regulating methods.
As shown in Fig. 2 generally, CQI is provided with N number of gear, each gear one thresholding of correspondence, institute
The thresholding for stating CQI increases with the rising of gear.Described device can include：Receiving unit 201,
First statistic unit 202, the second statistic unit 203, filtering factor setting unit 204, filter unit 205,
Comparing unit 206, selection unit 207, computing unit 208, state set unit 209 and adjustment unit
210, wherein：
The receiving unit 201, is suitable to receive signal；
First statistic unit 202, is suitable to count total signal quality information of the signal；
Second statistic unit 203, is suitable to the quantity when the signal more than preset first threshold value, and institute
When stating total signal quality information more than default Second Threshold, the signal is counted using sliding window method corresponding
The information of the signal quality of each CQI gear；
The filtering factor setting unit 204, is suitable to the signal quality of each CQI gear according to
Information, is that described each CQI gear sets corresponding filtering factor；
The filter unit 205, is suitable to according to described each corresponding filtering factor of CQI gears, to institute
The information for stating the signal quality of each CQI gear is filtered, and obtains filtered each CQI gear
The information of signal quality；
The comparing unit 206, is suitable to the letter of the signal quality of filtered each CQI gear
Cease the information respectively with the preset signals quality of respective notch to be compared, obtain comparative result；
The selection unit 207, is suitable to choose corresponding to the value of maximum absolute value in the comparative result
CQI gears are k-th gear, and k is the order of gear, and N >=k >=1；
The computing unit 208, is suitable to respectively according to kth -1, described k-th and+1 CQI of kth
The comparative result of gear, is calculated the first adjusting step corresponding to -1 CQI gear of the kth,
The second adjusting step corresponding to k-th CQI gears, corresponding to+1 CQI gear of the kth
The 3rd adjusting step；
The state set unit 209, be suitable to according to first, second and third adjusting step with it is default
The relation of adjusting step, judges whether to set to the kth -1, the CQI of+1 gear of kth and kth
The state that thresholding is adjusted is true；
The adjustment unit 210, is suitable to according to the CQI to the kth -1 ,+1 gear of kth and kth
The state that thresholding is adjusted sets result, correspondingly adjusts the thresholding of k-th CQI gears.
The structural representation of another CQI thresholdings adjusting apparatus in the embodiment of the present invention also provided below
Figure, specifically may be referred to Fig. 3, except above-mentioned receiving unit 201, the first statistic unit 202, second
Statistic unit 203, filtering factor setting unit 204, filter unit 205, comparing unit 206, selection
Outside unit 207, computing unit 208, state set unit 209 and adjustment unit 210, described device is also
Can include：Initialization unit 211.
In specific implementation, the initialization unit 211 is suitable to be adjusted when the CQI thresholdings to any gear
After whole, the corresponding statistical information of CQI thresholdings and count information after the adjustment are initialized to zero.
In specific implementation, the state set unit 209 can include：
First state sets subelement 2091, is suitable to be more than the default adjustment when first adjusting step
During step-length, it is true to set the state being adjusted to the thresholding of -1 CQI gear of the kth；
Second state sets subelement 2092, is suitable to be more than the default adjustment when second adjusting step
During step-length, it is true to set the state being adjusted to the thresholding of k-th CQI gears；
The third state sets subelement 2093, is suitable to be more than the default adjustment when the 3rd adjusting step
During step-length, it is true to set the state being adjusted to the thresholding of+1 CQI gear of the kth.
In specific implementation, the adjustment unit 210, what the CQI thresholdings being suitable in corresponding gear were adjusted
When state is true, according to the CQI gears from high to low order, the door to the CQI is performed successively
The step of limit is adjusted.
In specific implementation, the adjustment unit 210 can also include：
First judgment sub-unit 2101, is suitable to the shape adjusted when the CQI thresholdings set to+1 gear of kth
When state is true, CQI of+1 gear of the kth after being adjusted according to the 3rd adjusting step is judged
Limit, with according to second adjusting step adjust after k-th gear CQI thresholdings difference whether
More than default 3rd threshold value；
First adjustment subelement 2102, is suitable to CQI of+1 gear of the kth after adjustment
Limit when being more than three threshold value with the difference of k-th gear CQI thresholdings, by kth+1 to N number of
The CQI thresholdings of gear are adjusted according to the 3rd adjusting step, and after the adjustment described
The k+1 CQI thresholding of gear is less than the 3rd threshold value with the difference of k-th gear CQI thresholdings
When, the CQI thresholdings to N number of gear are not adjusted.
In specific implementation, the adjustment unit 210 can also include：
Second judgment sub-unit 2103, is suitable to when setting is to k-th state of the CQI thresholdings adjustment of gear
When being true, the positive and negative of second adjusting step is judged；
Reduced value computation subunit 2104, is suitable to when second adjusting step is timing, will be according to described
The CQI thresholdings of k-th gear after the adjustment of the second adjusting step, adjust with according to the 3rd adjusting step
The difference of the CQI thresholdings of+1 gear of kth after whole, is worth as a comparison, when second adjusting step
For it is negative when, the CQI thresholdings of k-th gear after being adjusted according to second adjusting step, with according to
The difference of the CQI thresholdings of -1 gear of kth after the first adjusting step adjustment, is worth as a comparison；
Second adjustment subelement 2105, is suitable to be more than default reduced value when the reduced value, and have determined that it is right
When the CQI thresholdings of -1 gear of the kth+1 and kth are adjusted, walked according to the described second adjustment
The CQI thresholdings of adjustment k-th gear long, when the reduced value is more than the default reduced value, and
When having determined that the CQI thresholdings not to -1 gear of the kth+1 or kth are adjusted, will be described N number of
The CQI thresholdings of gear are adjusted according to second adjusting step.
3rd adjustment subelement 2106, is suitable to meet the reduced value less than the default reduced value, and
Have determined that when being adjusted to the CQI thresholdings of -1 gear of the kth+1 and kth, not to the kth
The CQI thresholdings of individual gear are adjusted, and the default reduced value is less than when the reduced value is met, and
It is determined that when the CQI thresholdings to -1 gear of the kth+1 or kth are not adjusted, if described second adjusts
Synchronizing is a length of just, and the CQI thresholdings of kth to N number of gear are adjusted according to second adjusting step
It is whole, if second adjusting step is negative, by the CQI thresholdings of 1 to k gears according to described the
Two adjusting steps are adjusted.
In specific implementation, the adjustment unit 210 can also include：4th adjustment subelement, is suitable to
When the state that the CQI thresholdings set to -1 gear of kth are adjusted is true, by -1 gear of 1 to kth
CQI thresholdings be adjusted according to first adjusting step.
In an embodiment of the present invention, the information of the signal quality can be Block Error Rate.
In an embodiment of the present invention, the N can be 15.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Rapid to can be by program to instruct the hardware of correlation to complete, the program can be stored in can with computer
Read in storage medium, storage medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore guarantor of the invention
Shield scope should be defined by claim limited range.
Claims (18)
1. a kind of CQI threshold regulating methods, the CQI is provided with N number of gear, each gear correspondence one
Thresholding, the thresholding of the CQI increases with the rising of gear, it is characterised in that including：
Signal is received, and counts total signal quality information of the signal；
When the quantity of the signal is more than preset first threshold value, and total signal quality information more than default
During Second Threshold, the signal quality of corresponding each the CQI gear of the signal is counted using sliding window method
Information；
The information of the signal quality according to each CQI gear, is that described each CQI gear sets correspondence
Filtering factor；
According to described each corresponding filtering factor of CQI gears, to the signal quality of each CQI gear
Information be filtered, obtain the information of the signal quality of filtered each CQI gear；
By the information of the signal quality of filtered each CQI gear respectively with the default letter of respective notch
The information of number quality is compared, and obtains comparative result, chooses maximum absolute value in the comparative result
Value corresponding to CQI gears be k-th gear, k is the order of gear, and N >=k >=1；
Respectively according to kth -1, described k-th and+1 comparative result of CQI gears of kth, calculate
To the first adjusting step corresponding to -1 CQI gear of the kth, k-th CQI gears institute
Corresponding second adjusting step, the 3rd adjusting step corresponding to+1 CQI gear of the kth；
According to first, second and third adjusting step and the relation of default adjusting step, judge whether to set
It is true to put the state being adjusted to the CQI thresholdings of the kth -1 ,+1 gear of kth and kth；
The state being adjusted according to the CQI thresholdings to the kth -1 ,+1 gear of kth and kth is set
As a result, the thresholding of k-th CQI gears is correspondingly adjusted.
2. CQI threshold regulating methods according to claim 1, it is characterised in that described according to described
First, the relation of second and third adjusting step and default adjusting step, judges whether to set to described the
The state that k-1, the CQI thresholdings of+1 gear of kth and kth are adjusted is true, including：
When first adjusting step is more than the default adjusting step, set to -1 CQI of the kth
The state that the thresholding of gear is adjusted is true；
When second adjusting step is more than the default adjusting step, set to described k-th CQI grades
The state that the thresholding of position is adjusted is true；
When the 3rd adjusting step is more than the default adjusting step, set to+1 CQI of the kth
The state that the thresholding of gear is adjusted is true.
3. CQI threshold regulating methods according to claim 2, it is characterised in that the basis is to described
The state that kth -1, the CQI thresholdings of+1 gear of kth and kth are adjusted sets result, accordingly
The thresholding of ground adjustment k-th CQI gears, including：
When the state adjusted in the CQI thresholdings of corresponding gear is true, according to the CQI gears from high to low
Sequentially, the step of being adjusted to the thresholding of the CQI is performed successively.
4. CQI threshold regulating methods according to claim 3, it is characterised in that the basis is to described
The state that kth -1, the CQI thresholdings of+1 gear of kth and kth are adjusted sets result, accordingly
The thresholding of ground adjustment k-th CQI gears, including：
When the state that the CQI thresholdings set to+1 gear of the kth are adjusted is true, judge according to described
The CQI thresholdings of+1 gear of the kth after the adjustment of the 3rd adjusting step, adjust with according to described second
Whether the difference of the k-th gear CQI thresholdings after synchronizing adjustment long is more than default 3rd threshold value；
The CQI thresholdings of+1 gear of the kth after adjustment and k-th gear CQI thresholdings
Difference be more than three threshold value when, by the CQI thresholdings of kth+1 to N number of gear according to described
3rd adjusting step is adjusted；
The CQI thresholdings of+1 gear of the kth after adjustment and k-th gear CQI thresholdings
Difference be less than three threshold value when, the CQI thresholdings to N number of gear are not adjusted.
5. CQI threshold regulating methods according to claim 3, it is characterised in that the basis is to described
The state that kth -1, the CQI thresholdings of+1 gear of kth and kth are adjusted sets result, accordingly
The thresholding of ground adjustment k-th CQI gears, including：
When set to the state of the CQI thresholdings adjustment of k-th gear is true when, judge that second adjustment is walked
Long is positive and negative；
When second adjusting step is timing, k-th grade after being adjusted according to second adjusting step
The CQI thresholdings of position, with the CQI according to+1 gear of kth after the 3rd adjusting step adjustment
The difference of thresholding, is worth as a comparison；
When second adjusting step is to bear, k-th grade after being adjusted according to second adjusting step
The CQI thresholdings of position, with adjusted according to first adjusting step after CQI of -1 gear of kth
The difference of limit, is worth as a comparison；
When the reduced value is more than default reduced value, and have determined that to -1 gear of the kth+1 and kth
When CQI thresholdings are adjusted, the CQI of k-th gear is adjusted according to second adjusting step
Thresholding；
When the reduced value is more than the default reduced value, and have determined that not to the kth+1 or kth -1
When the CQI thresholdings of gear are adjusted, by the CQI thresholdings of N number of gear according to described second
Adjusting step is adjusted；
The default reduced value is less than when the reduced value is met, and is had determined that to the kth+1 and kth -1
When the CQI thresholdings of individual gear are adjusted, the CQI thresholdings to k-th gear are not adjusted
It is whole；
The default reduced value is less than when the reduced value is met, and is had determined that not to the kth+1 or kth -1
When the CQI thresholdings of individual gear are adjusted, if second adjusting step is for just, by kth to N number of
The CQI thresholdings of gear are adjusted according to second adjusting step, if second adjusting step
It is negative, the CQI thresholdings of 1 to k gear is adjusted according to second adjusting step.
6. CQI threshold regulating methods according to claim 3, it is characterised in that the basis is to described
Kth -1, the CQI thresholdings of+1 gear of kth and kth are made whether the setting result of adjustment, accordingly
The thresholding of ground adjustment k-th CQI gears, including：
When set to the state of the CQI thresholdings of -1 gear of kth adjustment is true when, by 1 to kth -1
The CQI thresholdings of gear are adjusted according to first adjusting step.
7. CQI threshold regulating methods according to claim 1, it is characterised in that also include：When to appointing
After the CQI thresholdings adjustment of meaning gear, by the corresponding statistical information of CQI thresholdings and meter after the adjustment
Count information initializing to zero.
8. CQI threshold regulating methods according to claim 1, it is characterised in that the signal quality
Information is Block Error Rate.
9. CQI threshold regulating methods according to claim 1, it is characterised in that the N is 15.
10. a kind of CQI thresholdings adjusting apparatus, the CQI is provided with N number of gear, each gear correspondence one
Thresholding, the thresholding of the CQI increases with the rising of gear, it is characterised in that including：
Receiving unit, is suitable to receive signal；
First statistic unit, is suitable to count total signal quality information of the signal；
Second statistic unit, is suitable to the quantity when the signal more than preset first threshold value, and total letter
When number quality information is more than default Second Threshold, using sliding window method count the signal it is corresponding each
The information of the signal quality of CQI gears；
Filtering factor setting unit, is suitable to the information of the signal quality according to each CQI gear, is institute
State each CQI gear and corresponding filtering factor is set；
Filter unit, is suitable to according to described each corresponding filtering factor of CQI gears, to described each CQI
The information of the signal quality of gear is filtered, and obtains the signal quality of filtered each CQI gear
Information；
Comparing unit, be suitable to by the information of the signal quality of filtered each CQI gear respectively with it is right
Answer the information of the preset signals quality of gear to be compared, obtain comparative result；
Unit is chosen, being suitable to choose the CQI gears corresponding to the value of maximum absolute value in the comparative result is
K-th gear, k is the order of gear, and N >=k >=1；
Computing unit, is suitable to respectively according to kth -1, the ratio of described k-th and+1 CQI gear of kth
Relatively result, is calculated the first adjusting step corresponding to -1 CQI gear of the kth, described
The second adjusting step corresponding to k CQI gear, corresponding to+1 CQI gear of the kth
Three adjusting steps；
State set unit, is suitable to according to first, second and third adjusting step and default adjusting step
Relation, judge whether to set and the CQI thresholdings of the kth -1 ,+1 gear of kth and kth entered
The state of row adjustment is true；
Adjustment unit, is suitable to be carried out according to the CQI thresholdings to the kth -1 ,+1 gear of kth and kth
The state of adjustment sets result, correspondingly adjusts the thresholding of k-th CQI gears.
11. CQI thresholdings adjusting apparatus according to claim 10, it is characterised in that the state is set
Unit, including：
First state sets subelement, is suitable to when first adjusting step is more than the default adjusting step,
It is true to set the state being adjusted to the thresholding of -1 CQI gear of the kth；
Second state sets subelement, is suitable to when second adjusting step is more than the default adjusting step,
It is true to set the state being adjusted to the thresholding of k-th CQI gears；
The third state sets subelement, is suitable to when the 3rd adjusting step is more than the default adjusting step,
It is true to set the state being adjusted to the thresholding of+1 CQI gear of the kth.
12. CQI thresholdings adjusting apparatus according to claim 11, it is characterised in that the adjustment unit,
When the state that the CQI thresholdings being suitable in corresponding gear are adjusted is true, according to the CQI gears from up to
Low order, performs the step of being adjusted to the thresholding of the CQI successively.
13. CQI thresholdings adjusting apparatus according to claim 12, it is characterised in that the adjustment unit,
Including：
First judgment sub-unit, is suitable to the state adjusted when the CQI thresholdings set to+1 gear of the kth
When being true, CQI of+1 gear of the kth after being adjusted according to the 3rd adjusting step is judged
Limit, be with according to the difference of the k-th gear CQI thresholdings after second adjusting step adjustment
It is no more than default 3rd threshold value；
First adjustment subelement, is suitable to the CQI thresholdings and institute of+1 gear of the kth after adjustment
When stating k-th difference of gear CQI thresholdings more than three threshold value, by kth+1 to N number of gear
CQI thresholdings be adjusted according to the 3rd adjusting step；And be suitable to after the adjustment
The CQI thresholdings of+1 gear of the kth are less than described with the difference of k-th gear CQI thresholdings
During three threshold values, the CQI thresholdings to N number of gear are not adjusted.
14. CQI thresholdings adjusting apparatus according to claim 12, it is characterised in that the adjustment unit,
Including：
Second judgment sub-unit, be suitable to when set to the state of the CQI thresholdings adjustment of k-th gear is true when,
Judge the positive and negative of second adjusting step；
Reduced value computation subunit, is suitable to, when second adjusting step is timing, to be adjusted according to described second
The CQI thresholdings of k-th gear after synchronizing adjustment long, after being adjusted according to the 3rd adjusting step
+ 1 gear of kth CQI thresholdings difference, be worth as a comparison, when second adjusting step is
When negative, the CQI thresholdings of k-th gear after being adjusted according to second adjusting step, with according to
The difference of the CQI thresholdings of -1 gear of kth after the first adjusting step adjustment, is worth as a comparison；
Second adjustment subelement, is suitable to be more than default reduced value when the reduced value, and has determined that to described the
When the CQI thresholdings of -1 gear of k+1 and kth are adjusted, adjusted according to second adjusting step
The CQI thresholdings of k-th gear, it is when the reduced value is more than the default reduced value and true
When the fixed CQI thresholdings not to -1 gear of the kth+1 or kth are adjusted, by N number of shelves
The CQI thresholdings of position are adjusted according to second adjusting step；
3rd adjustment subelement, is suitable to meet the reduced value less than the default reduced value, and have determined that
When CQI thresholdings to -1 gear of the kth+1 and kth are adjusted, not to described k-th
The CQI thresholdings of gear are adjusted, and the default reduced value is less than when the reduced value is met, and
It is determined that when the CQI thresholdings to -1 gear of the kth+1 or kth are not adjusted, if described second
Adjusting step is just, the CQI thresholdings of kth to N number of gear to be entered according to second adjusting step
Row adjustment, if second adjusting step be negative, by the CQI thresholdings of the individual gears of 1 to k according to
Second adjusting step is adjusted.
15. CQI thresholdings adjusting apparatus according to claim 12, it is characterised in that the adjustment unit,
Including：
4th adjustment subelement, it is true to be suitable to when setting to the state of the CQI thresholdings adjustment of -1 gear of kth
When, the CQI thresholdings of -1 gear of 1 to kth are adjusted according to first adjusting step.
16. CQI thresholdings adjusting apparatus according to claim 10, it is characterised in that also include：
Initialization unit, is suitable to after the CQI thresholdings to any gear are adjusted, by the CQI after the adjustment
The corresponding statistical information of thresholding and count information are initialized to zero.
17. CQI thresholdings adjusting apparatus according to claim 10, it is characterised in that the signal quality
Information be Block Error Rate.
18. CQI thresholdings adjusting apparatus according to claim 10, it is characterised in that the N is 15.
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| CN103873217A (en) * | 2012-12-17 | 2014-06-18 | 展讯通信（上海）有限公司 | Method and device for correcting CQI (channel quality indicator), and user equipment |
| CN104618951A (en) * | 2014-12-29 | 2015-05-13 | 深圳市中兴微电子技术有限公司 | Channel quality indication information adjusting method and device and mobile terminal |
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| WO2009104146A1 (en) * | 2008-02-19 | 2009-08-27 | Nxp B.V. | Uplink feedback in a multimedia broadcast/multicast services (mbms) wireless communications system |
| CN102255717A (en) * | 2010-05-21 | 2011-11-23 | 电信科学技术研究院 | Channel quality indicator CQI information correction method and apparatus thereof |
| CN103873217A (en) * | 2012-12-17 | 2014-06-18 | 展讯通信（上海）有限公司 | Method and device for correcting CQI (channel quality indicator), and user equipment |
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