CN102905375A - Resource allocation device - Google Patents
Resource allocation device Download PDFInfo
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- CN102905375A CN102905375A CN2012104057705A CN201210405770A CN102905375A CN 102905375 A CN102905375 A CN 102905375A CN 2012104057705 A CN2012104057705 A CN 2012104057705A CN 201210405770 A CN201210405770 A CN 201210405770A CN 102905375 A CN102905375 A CN 102905375A
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Abstract
The invention aims to provide a resource allocation device. The resource allocation device comprises a CCE (command control equipment) proportion regulation module and a CFI regulation module, wherein the CCE proportion regulation module is used for acquiring CCE utilization ratio of an uplink control channel unit of a subframe and CCE utilization ratio of a downlink control channel unit of the subsframe and regulating the ratio between the unlink CCE and the downlink CCE of the subframe according to the uplink CCE utilization rate and the downlink CCE utilization rate; the CFI regulation module is used for acquiring the average CCE utilization ratio and the average FB (resource block) utilization ratio of the subframe, and regulating the CFI (control format of indicator) according to the average CCE utilization ratio and the average FB (resource block) utilization ratio of the subframe. According to the device provided, through the arrangement of the CFI regulation module, the CFI can be regulated, and through the arrangement of the CCE proportion regulation module, the CCE ratio can be adjusted, so that the resource allocation can adapt to the current practical demand of the system, and the resource utilization ratio of the system is improved.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of device of resource distribution.
Background technology
At the LTE(Long Term Evolution) in the system, a subframe takies 1ms, CFI(control format indication is calculated in the base station at every turn when carrying out the subframe initialization) after the value, determine to distribute under the current system bandwidth CCE(control channel unit of control channel according to the CFI value) resource, then be respectively uplink/downlink control channel according to predetermined up-downgoing CCE ratio and distribute the CCE resource.Wherein, the OFDM symbolic number that control channel takies in each subframe of CFI value representation; Calculate the CFI value and specifically refer to, the cyclic prefix type during set in advance, up-downgoing proportioning, PHICH symbolic number and the uplink/downlink antenna port book of residential quarter are used in the base station, calculate the CFI value according to the regulation of agreement.
In the existing resource allocation method, because it is non-adjustable to calculate the employed parameter of CFI value, and up-downgoing CCE ratio is non-adjustable, so that the CFI value of each subframe is identical, and for the resource that uplink/downlink control channel distributes constant, can't the current actual demand of adaptive system, affect resource utilization.
Summary of the invention
The object of the invention is to, a kind of device of resource distribution is provided, thereby solves the problems of the technologies described above.
Purpose of the present invention realizes in the following manner:
A kind of device of resource distribution comprises:
CCE ratio adjusting module is for ascending control channel unit CCE utilance and the descending CCE utilance of obtaining subframe; According to up CCE utilance and descending CCE utilance, adjust up-downgoing CCE ratio;
The CFI adjusting module is for the average CCE utilance of obtaining subframe and average Resource Block FB utilance; According to average CCE utilance and the average RB utilance of described subframe, adjust control format indication CFI value.
Preferably, described CCE ratio adjusting module also is used for whether needing to adjust up-downgoing CCE ratio according to predetermined rule judgment.
Preferably, described CCE ratio adjusting module also is used for judging whether the timing duration of timer equals CCE dispatching cycle, if equate, then needs to adjust up-downgoing CCE ratio, and the described timer reclocking of zero clearing.
Preferably, described CCE ratio adjusting module specifically is used for, if up CCE utilance and descending CCE utilance be all more than or equal to default CCE utilance threshold value, or up CCE utilance and descending CCE utilance are all less than described CCE utilance threshold value, then up-downgoing CCE constant rate; If up CCE utilance is more than or equal to described CCE utilance threshold value, and described descending CCE utilance then is adjusted into up-downgoing CCE ratio less than described CCE utilance threshold value: (1-CCE utilance threshold value+CCE upstream utilization)/(line efficiency under the CCE+CCE utilance threshold value-CCE upstream utilization); If up CCE utilance is less than described CCE utilance threshold value, and described descending CCE utilance then is adjusted into up-downgoing CCE ratio more than or equal to described CCE utilance threshold value: (line efficiency under CCE upstream utilization+CCE utilance threshold value-CCE)/(line efficiency under 1-CCE utilance threshold value+CCE).
Preferably, described CFI adjusting module also is used for, and according to predetermined rule, judges whether to need to adjust the CFI value.
Preferably, described CFI adjusting module also is used for, calculate CCE utilance and the RB utilance of CFI subframe in dispatching cycle, utilize CCE utilance and RB utilance and the scheduling times of current C FI in dispatching cycle of the common subframe of all scheduling in the CFI adjustment cycle, calculate average CCE utilance and average RB utilance.
Preferably, described CFI adjusting module specifically is used for, obtain successively the CFI CCE quantity that each subframe is used in dispatching cycle and total CCE quantity of distributing to control channel, the ratio that calculates between the two obtains the CCE utilance, obtain RB quantity and total RB quantity that each subframe is used, the ratio that calculates between the two obtains the RB utilance.
Preferably, described CFI adjusting module specifically is used for: if the average CCE utilance of subframe more than or equal to the CCE high threshold, and average RB utilance is less than or equal to the RB thresholding, then the CFI value added 1; If the average CCE utilance of subframe is more than or equal to the CCE high threshold, and on average the RB utilance is greater than the RB thresholding, then the CFI value is constant; If the average CCE utilance of subframe is less than or equal to the CCE low threshold, and average RB utilance then subtracts 1. with the CFI value greater than the RB thresholding
Preferably, this device also comprises memory module, the CFI value after adjusting for preservation and/or the up-downgoing CCE ratio after the adjustment.
The device that the embodiment of the invention provides realizes that by the CFI adjusting module CFI value is adjustable, realizes that by CCE ratio adjusting module the CCE ratio is adjustable, so that the actual demand that resource is distributed and system is current adapts, has improved the resource utilization of system.
Description of drawings
The apparatus structure schematic diagram that Fig. 1 provides for the embodiment of the invention.
Embodiment
Embodiment one
The invention provides a kind of device of resource distribution, its structure as shown in Figure 1, the specific implementation structure comprises:
CCE ratio adjusting module 1001 is for ascending control channel unit CCE utilance and the descending CCE utilance of obtaining subframe; According to up CCE utilance and descending CCE utilance, adjust up-downgoing CCE ratio.
CFI adjusting module 1002 is for the average CCE utilance of obtaining subframe and average Resource Block FB utilance; According to average CCE utilance and the average RB utilance of described subframe, adjust control format indication CFI value.
The device that the embodiment of the invention provides realizes that by the CFI adjusting module CFI value is adjustable, realizes that by CCE ratio adjusting module the CCE ratio is adjustable, so that the actual demand that resource is distributed and system is current adapts, has improved the resource utilization of system.
Embodiment two
On the basis of above-described embodiment one, preferred in the embodiment of the invention two, CCE ratio adjusting module 1001 also is used for whether needing to adjust up-downgoing CCE ratio according to predetermined rule judgment.
So that the processing of device is more flexible.Only when adjusting up-downgoing CCE ratio, just trigger by needs the ratio adjusting operation.
Specifically can judge whether needs adjustment up-downgoing CCE ratio according to the channel feedback situation.
Embodiment three
On the basis of above-described embodiment one, in the embodiment of the invention three, preferred, CCE ratio adjusting module 1001 also is used for judging whether the timing duration of timer equals CCE dispatching cycle, if equate, then need to adjust up-downgoing CCE ratio, and the described timer reclocking of zero clearing.
By embodiment three, so that the processing of device is more flexible, the ratio adjusting operation only just sets out when needs are adjusted up-downgoing CCE ratio.And specifically provided a kind of implementation that judges whether need to adjust up-downgoing CCE ratio.
Embodiment four
In above-described embodiment one～embodiment three on the basis of any one embodiment, among the embodiment four, CCE ratio adjusting module 1001 specifically can be used for, if up CCE utilance and descending CCE utilance are all more than or equal to default CCE utilance threshold value, then up-downgoing CCE constant rate;
Perhaps,
CCE ratio adjusting module 1001 specifically can be used for, if up CCE utilance and descending CCE utilance are all less than described CCE utilance threshold value, then up-downgoing CCE constant rate;
Perhaps,
CCE ratio adjusting module 1001 specifically can be used for, if up CCE utilance is more than or equal to described CCE utilance threshold value, and described descending CCE utilance then is adjusted into up-downgoing CCE ratio less than described CCE utilance threshold value: (1-CCE utilance threshold value+CCE upstream utilization)/(line efficiency under the CCE+CCE utilance threshold value-CCE upstream utilization); If up CCE utilance is less than described CCE utilance threshold value, and described descending CCE utilance then is adjusted into up-downgoing CCE ratio more than or equal to described CCE utilance threshold value: (line efficiency under CCE upstream utilization+CCE utilance threshold value-CCE)/(line efficiency under 1-CCE utilance threshold value+CCE).
Embodiment four has provided a kind of concrete up-downgoing CCE ratio and has adjusted strategy.When needs were adjusted up-downgoing CCE ratio, the device that provides by embodiment four was so that the up-downgoing CCE ratio after adjusting has reflected the real resource demand of current system.
Embodiment five
On the basis of any one embodiment, among the embodiment five, CFI adjusting module 1002 also is used in above-described embodiment one～embodiment three, according to predetermined rule, judges whether to need to adjust the CFI value.
So that the processing of device is more flexible.Only when adjusting the CFI value, just trigger by needs the CFI adjusting operation.
Specifically can judge whether needs adjustment CFI value according to the channel feedback situation.
Embodiment six
In above-described embodiment one～embodiment three on the basis of any one embodiment, among the embodiment five, CFI adjusting module 1002 also is used for, calculate CCE utilance and the RB utilance of CFI subframe in dispatching cycle, utilize CCE utilance and RB utilance and the scheduling times of current C FI in dispatching cycle of the common subframe of all scheduling in the CFI adjustment cycle, calculate average CCE utilance and average RB utilance.
Embodiment seven
On the basis of embodiment six, described CFI adjusting module 1002 specifically is used for, obtain successively the CFI CCE quantity that each subframe is used in dispatching cycle and total CCE quantity of distributing to control channel, the ratio that calculates between the two obtains the CCE utilance, obtain RB quantity and total RB quantity that each subframe is used, the ratio that calculates between the two obtains the RB utilance.
Embodiment eight
In above-described embodiment one～embodiment three on the basis of any one embodiment, among the embodiment eight, described CFI adjusting module 1002 specifically is used for: if the average CCE utilance of subframe more than or equal to the CCE high threshold, and average RB utilance is less than or equal to the RB thresholding, then the CFI value added 1; If the average CCE utilance of subframe is more than or equal to the CCE high threshold, and on average the RB utilance is greater than the RB thresholding, then the CFI value is constant; If the average CCE utilance of subframe is less than or equal to the CCE low threshold, and average RB utilance then subtracts 1. with the CFI value greater than the RB thresholding
Embodiment nine
On the basis of above-described embodiment eight, the device that embodiment nine provides can also comprise memory module, the CFI value after adjusting for preservation and/or the up-downgoing CCE ratio after the adjustment.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (9)
1. the device of a resource distribution is characterized in that, comprising:
CCE ratio adjusting module is for ascending control channel unit CCE utilance and the descending CCE utilance of obtaining subframe; According to up CCE utilance and descending CCE utilance, adjust up-downgoing CCE ratio;
The CFI adjusting module is for the average CCE utilance of obtaining subframe and average Resource Block FB utilance; According to average CCE utilance and the average RB utilance of described subframe, adjust control format indication CFI value.
2. device according to claim 1 is characterized in that, described CCE ratio adjusting module also is used for whether needing to adjust up-downgoing CCE ratio according to predetermined rule judgment.
3. device according to claim 1, it is characterized in that described CCE ratio adjusting module also is used for judging whether the timing duration of timer equals CCE dispatching cycle, if equate, then need to adjust up-downgoing CCE ratio, and the described timer reclocking of zero clearing.
4. the described device of any one according to claim 1～3, it is characterized in that, described CCE ratio adjusting module specifically is used for, if up CCE utilance and descending CCE utilance are all more than or equal to default CCE utilance threshold value, or up CCE utilance and descending CCE utilance are all less than described CCE utilance threshold value, then up-downgoing CCE constant rate; If up CCE utilance is more than or equal to described CCE utilance threshold value, and described descending CCE utilance then is adjusted into up-downgoing CCE ratio less than described CCE utilance threshold value: (1-CCE utilance threshold value+CCE upstream utilization)/(line efficiency under the CCE+CCE utilance threshold value-CCE upstream utilization); If up CCE utilance is less than described CCE utilance threshold value, and described descending CCE utilance then is adjusted into up-downgoing CCE ratio more than or equal to described CCE utilance threshold value: (line efficiency under CCE upstream utilization+CCE utilance threshold value-CCE)/(line efficiency under 1-CCE utilance threshold value+CCE).
5. the described device of any one is characterized in that according to claim 1～3, and described CFI adjusting module also is used for, and according to predetermined rule, judges whether to need to adjust the CFI value.
6. the described device of any one according to claim 1～3, it is characterized in that, described CFI adjusting module also is used for, calculate CCE utilance and the RB utilance of CFI subframe in dispatching cycle, utilize CCE utilance and RB utilance and the scheduling times of current C FI in dispatching cycle of the common subframe of all scheduling in the CFI adjustment cycle, calculate average CCE utilance and average RB utilance.
7. device according to claim 6, it is characterized in that, described CFI adjusting module specifically is used for, obtain successively the CFI CCE quantity that each subframe is used in dispatching cycle and total CCE quantity of distributing to control channel, the ratio that calculates between the two obtains the CCE utilance, obtain RB quantity and total RB quantity that each subframe is used, the ratio that calculates between the two obtains the RB utilance.
8. the described device of any one according to claim 1～3, it is characterized in that, described CFI adjusting module specifically is used for: if the average CCE utilance of subframe more than or equal to the CCE high threshold, and average RB utilance is less than or equal to the RB thresholding, then the CFI value added 1; If the average CCE utilance of subframe is more than or equal to the CCE high threshold, and on average the RB utilance is greater than the RB thresholding, then the CFI value is constant; If the average CCE utilance of subframe is less than or equal to the CCE low threshold, and average RB utilance then subtracts 1. with the CFI value greater than the RB thresholding
9. device according to claim 7 is characterized in that, this device also comprises memory module, the CFI value after adjusting for preservation and/or the up-downgoing CCE ratio after the adjustment.
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| CN2012104057705A CN102905375A (en) | 2012-10-23 | 2012-10-23 | Resource allocation device |
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| CN2012104057705A CN102905375A (en) | 2012-10-23 | 2012-10-23 | Resource allocation device |
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| CN101931600A (en) * | 2009-06-25 | 2010-12-29 | 中兴通讯股份有限公司 | Device and method for dynamically confirming CFI (Control Format Indication) |
| CN102316519A (en) * | 2010-07-07 | 2012-01-11 | 中兴通讯股份有限公司 | Method and device for regulating value of physical control format indicator channel |
| CN102325378A (en) * | 2011-08-31 | 2012-01-18 | 新邮通信设备有限公司 | Method and device for controlling physical downlink control channel (PDCCH) transmission |
| CN102377717A (en) * | 2010-08-18 | 2012-03-14 | 中兴通讯股份有限公司 | System and method for indicating control channel transmission format |
| CN102448179A (en) * | 2012-01-18 | 2012-05-09 | 中兴通讯股份有限公司 | Resource distribution method and eNodeB (evolved Node B) |
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2012
- 2012-10-23 CN CN2012104057705A patent/CN102905375A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931600A (en) * | 2009-06-25 | 2010-12-29 | 中兴通讯股份有限公司 | Device and method for dynamically confirming CFI (Control Format Indication) |
| CN102316519A (en) * | 2010-07-07 | 2012-01-11 | 中兴通讯股份有限公司 | Method and device for regulating value of physical control format indicator channel |
| CN102377717A (en) * | 2010-08-18 | 2012-03-14 | 中兴通讯股份有限公司 | System and method for indicating control channel transmission format |
| CN102325378A (en) * | 2011-08-31 | 2012-01-18 | 新邮通信设备有限公司 | Method and device for controlling physical downlink control channel (PDCCH) transmission |
| CN102448179A (en) * | 2012-01-18 | 2012-05-09 | 中兴通讯股份有限公司 | Resource distribution method and eNodeB (evolved Node B) |
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Application publication date: 20130130 |