CN102625452A - Bandwidth scheduling method and equipment - Google Patents

Bandwidth scheduling method and equipment Download PDF

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Publication number
CN102625452A
CN102625452A CN2012100633132A CN201210063313A CN102625452A CN 102625452 A CN102625452 A CN 102625452A CN 2012100633132 A CN2012100633132 A CN 2012100633132A CN 201210063313 A CN201210063313 A CN 201210063313A CN 102625452 A CN102625452 A CN 102625452A
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bandwidth
subband
scheduling
amount
equipment
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CN2012100633132A
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李琼
高卓
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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Abstract

The invention discloses a bandwidth scheduling method and equipment. The method comprises the following steps of: determining the scheduled bandwidth Mi; selecting a scheduling bandwidth set for the UE (user equipment) according to the performance information of each sub-band and the bandwidth Mi; and scheduling the UE by use of the sub-band in the scheduling bandwidth set. In the embodiment of the invention, the scheduling bandwidth of the UE can be limited based on the service type of the UE, thus the complexity of the scheduling algorithm is reduced, and the computing complexity of the system is remarkably lowered.

Description

A kind of method and apparatus of bandwidth scheduling
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and apparatus of bandwidth scheduling.
Background technology
User capacity and scheduling bandwidth that LTE (Long Term Evolution, Long Term Evolution) system supports are all bigger, and complex scheduling algorithm brings difficulty can for application and the enforcement of LTE; And in present LTE system, extensively adopted the full bandwidth dispatching method that bandwidth is dispatched.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
Utilizing the full bandwidth dispatching method to UE (User Equipment; When subscriber equipment) carrying out prioritization with scheduling; Need calculate and consider the situation of full bandwidth, particularly for the UE that adopts wave beam formings technology such as TM7, TM8 in descending TD-LTE (Time Division-Long Time Evolution, the time-division Long Term Evolution) system; Also need safeguard the figuration factor of each subband in the full bandwidth, this operand is very large.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus of bandwidth scheduling, to reduce the dispatching algorithm complexity.
In order to achieve the above object, the embodiment of the invention provides a kind of method of bandwidth scheduling, comprising:
Confirm the amount of bandwidth M of scheduling i
Performance information and said amount of bandwidth M according to each subband iBe user equipment (UE) selection scheduling bandwidth aggregation;
Utilize the subband in the said scheduling bandwidth set that said UE is dispatched.
The embodiment of the invention provides a kind of equipment of bandwidth scheduling, comprising:
Determination module is used for definite amount of bandwidth M that dispatches i
Select module, be used for performance information and said amount of bandwidth M according to each subband iBe user equipment (UE) selection scheduling bandwidth aggregation;
Scheduler module is used to utilize the subband in the said scheduling bandwidth set that said UE is dispatched.
Compared with prior art, the embodiment of the invention has the following advantages at least: in the embodiment of the invention, can limit based on the type of service of the UE scheduling bandwidth to UE, thereby reduce the complexity of dispatching algorithm, and system's computational complexity reduces greatly.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow sketch map of a kind of bandwidth scheduling of providing of the embodiment of the invention one;
Fig. 2 is the structural representation of the equipment of a kind of bandwidth scheduling of providing of the embodiment of the invention three.
Embodiment
To combine the accompanying drawing among the present invention below, the technical scheme among the present invention is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
The embodiment of the invention one provides a kind of method of bandwidth scheduling, can limit based on the type of service of the UE scheduling bandwidth to UE, to reduce to be limited the relevant complexity of the corresponding dispatching algorithm of bandwidth and other measuring amount complexities; As shown in Figure 1, this method may further comprise the steps:
Step 101 is confirmed the amount of bandwidth M that dispatches i
In the embodiment of the invention, confirm the amount of bandwidth M of scheduling iSpecifically comprise: the amount of bandwidth M that confirms this UE according to UE corresponding service type iPerhaps, confirm the amount of bandwidth M of this UE according to UE corresponding service type and cell load situation iIt should be noted that the corresponding amount of bandwidth M of UE that type of service i can be set i(with the subband is unit, and the subband size is configurable), and under different cell load situation, M iGet different value.
Mode one can be according to practical experience value maintenance service type and amount of bandwidth M in advance iBetween corresponding relation, based on this, after definite UE corresponding service type, can obtain the amount of bandwidth M of this UE through this corresponding relation of inquiry iFor example, VoIP business and M have been safeguarded in advance iBehind the corresponding relation between=8, be that VoIP is professional, then confirm the amount of bandwidth M of scheduling if learn the type of service of UE iBe 8.
Mode two can be according to practical experience value maintenance service type, cell load situation and amount of bandwidth M in advance iBetween corresponding relation, based on this, after definite UE corresponding service type and cell load situation, can obtain the amount of bandwidth M of this UE through this corresponding relation of inquiry iFor example, when the cell load situation is light for loading, VoIP business and M have been safeguarded in advance iBehind the corresponding relation between=8, be that VoIP is professional if learn the type of service of UE, and the cell load situation is lighter for load, then confirms the amount of bandwidth M of scheduling iBe 8.
Step 102 is according to the performance information and the amount of bandwidth M of each subband iBe UE selection scheduling bandwidth aggregation.
In the embodiment of the invention, according to the performance information and the amount of bandwidth M of each subband iFor UE selection scheduling bandwidth aggregation comprises: the performance information according to each subband sorts to each corresponding subband of UE, and chooses preceding M according to ranking results iIndividual subband is as the scheduling bandwidth set of UE.
Further; According to the performance information of each subband each corresponding subband of UE is sorted and to comprise: according to CQI (the Channel Quality Indicator of each subband; The channel quality indication) value and/or revised MCS (modulation and coding style, modulation coding mode) grade sort to each corresponding subband of UE.
Step 103 utilizes the subband in the scheduling bandwidth set that UE is dispatched.
Concrete, when dispatching algorithm starts,, can in the corresponding given scheduling bandwidth set of this UE, dispatch for each UE.
In the embodiment of the invention, at performance information and amount of bandwidth M according to each subband iAfter UE selection scheduling bandwidth aggregation,, then utilize the subband in the scheduling bandwidth set to calculate the corresponding figuration factor of scheduling bandwidth set if UE need use the wave beam forming factor.
In the embodiment of the invention, at performance information and amount of bandwidth M according to each subband iAfter UE selection scheduling bandwidth aggregation; If UE need (promptly utilize outer PRB (the Physical Resource Block of given scheduling bandwidth set based on the outer subband calculating priority level of scheduling bandwidth set; Physical Resource Block) calculating priority level), then utilizes the CQI value of full bandwidth and preset rollback value calculating priority level value (channel quality that is the relevant parameter broadband capable of using of priority value obtains).
In the embodiment of the invention, at performance information and amount of bandwidth M according to each subband iAfter UE selection scheduling bandwidth aggregation, if UE need be based on the outer subband compute beam figuration factor of scheduling bandwidth set, the then corresponding figuration factor can be considered total figuration factor of remaining bandwidth, and need not provide by subband; Promptly can utilize the average back of channel space matrix of the subband outside the scheduling bandwidth set to decompose the figuration factor that the weights that obtain calculate correspondence.
In sum, in the embodiment of the invention, can limit, thereby reduce the complexity of dispatching algorithm, and system's computational complexity reduces greatly based on the type of service of UE scheduling bandwidth to UE.
Embodiment two
Application scenarios below in conjunction with concrete is elaborated to the embodiment of the invention.In the embodiment of the invention, in the 20M of TD-LTE system, the subband width is 4PRB, and full bandwidth has 25 subbands, and the CQI value of full bandwidth is 20dB; UE1 is professional, the corresponding amount of bandwidth M of VoIP i=8.
Sounding (detection) channel measurement according to this UE1 obtains each subband CQI value, can obtain 25 values altogether; In the embodiment of the invention, need sort from big to small, and choose of the scheduling bandwidth set of preceding 8 corresponding subband for this UE1 to these 25 values; Suppose the corresponding subband sequence number for [1,8,14,7,12,25,20,15], then these subbands [1,8,14,7,12,25,20,15] have been formed this scheduling bandwidth set of UE1.
In the embodiment of the invention,, then need calculate the figuration vector to the corresponding subband of this scheduling bandwidth set [1,8,14,7,12,25,20,15] if this UE1 is in the pattern that TM7 or TM8 etc. need to use the wave beam forming factor.
In the embodiment of the invention, when dispatching algorithm started, for UE1, the subband priority value in the scheduling bandwidth set [1,8,14,7,12,25,20,15] of this UE1 of needs calculating etc. were so that carry out subsequent treatment; With the subband of the final scheduling of UE1 is 1 and 14 to be that example describes.
Preferably, in the embodiment of the invention, also can use the outer PRB of scheduling bandwidth set if consider UE1, then use the CQI value 20dB-5dB=15dB of full bandwidth during the calculating priority level value, wherein 5dB is rollback value (can dispose according to actual needs); In addition, the corresponding figuration factor then uses the average back of channel space matrix of remaining bandwidth [2,3,4,5,6,9,10,11,13,16,17,18,19,21,22,23,24] to decompose the weights that obtain.
The technique scheme that provides through the embodiment of the invention; At least have the following advantages: when adopting existing techniques in realizing; For UE1, when each scheduling, need to calculate the priority value of 25 subbands; If this UE1 is in the pattern that TM7 or TM8 etc. need to use the wave beam forming factor, then also need calculate the pairing figuration vector of each subband; Finally, the subband of this UE1 scheduling still is 1 and 14.Obviously, the technical scheme that the embodiment of the invention provides has bigger advantage on complexity, and system's computational complexity can reduce greatly.
Embodiment three
Based on the inventive concept same with said method, a kind of equipment of bandwidth scheduling also is provided in the embodiment of the invention, as shown in Figure 2, this equipment comprises:
Determination module 11 is used for definite amount of bandwidth M that dispatches i
Select module 12, be used for performance information and said amount of bandwidth M according to each subband iBe user equipment (UE) selection scheduling bandwidth aggregation;
Scheduler module 13 is used to utilize the subband in the said scheduling bandwidth set that said UE is dispatched.
In the embodiment of the invention, said determination module 11 specifically is used for confirming said amount of bandwidth M according to said UE corresponding service type iPerhaps,
Confirm said amount of bandwidth M according to said UE corresponding service type and cell load situation i
In the embodiment of the invention, said selection module 12 specifically is used for according to the performance information of each subband each corresponding subband of said UE being sorted, and chooses preceding M according to ranking results iIndividual subband is as the scheduling bandwidth set of said UE.
In the embodiment of the invention, said selection module 12 is further used for according to the channel quality indicator (CQI) value and/or the revised modulation coding mode MCS grade of each subband each corresponding subband of said UE being sorted.
In the embodiment of the invention, this equipment also comprises: computing module 13, be used for when said UE need use the wave beam forming factor, and then utilize the subband in the said scheduling bandwidth set to calculate the corresponding figuration factor of said scheduling bandwidth set.
In the embodiment of the invention, computing module 13 when being used for the subband calculating priority level outside said UE need gather based on said scheduling bandwidth, then utilizing the CQI value of full bandwidth and presets rollback value calculating priority level value.
In the embodiment of the invention; Computing module 13; When being used for the subband compute beam figuration factor outside said UE need gather based on said scheduling bandwidth, the corresponding figuration factor of weights calculating that the channel space matrix average back decomposition that then utilizes said scheduling bandwidth to gather outer subband obtains.
Wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product is stored in the storage medium; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the sketch map of a preferred embodiment, module in the accompanying drawing or flow process might not be that embodiment of the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosedly be merely several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims (14)

1. A kind of method of bandwidth scheduling is characterized in that, comprising:
Confirm the amount of bandwidth M of scheduling i
Performance information and said amount of bandwidth M according to each subband i Be user equipment (UE) selection scheduling bandwidth aggregation;
utilize the subband in the said scheduling bandwidth set that said UE is dispatched.
2. The method of claim 1 is characterized in that, the amount of bandwidth M of said definite scheduling i , specifically comprise:
Confirm said amount of bandwidth M according to said UE corresponding service type i Perhaps,
Confirm said amount of bandwidth M according to said UE corresponding service type and cell load situation i
3. The method of claim 1 is characterized in that, said performance information and said amount of bandwidth M according to each subband i Be user equipment (UE) selection scheduling bandwidth aggregation, comprise:
Performance information according to each subband sorts to each corresponding subband of said UE, and chooses preceding M according to ranking results i Individual subband is as the scheduling bandwidth set of said UE.
4. Method as claimed in claim 3 is characterized in that, said performance information according to each subband sorts to each corresponding subband of said UE, comprising:
Sort to each corresponding subband of said UE according to the channel quality indicator (CQI) value and/or the revised modulation coding mode MCS grade of each subband .
5. The method of claim 1 is characterized in that, said performance information and said amount of bandwidth M according to each subband i Be user equipment (UE) selection scheduling bandwidth aggregation, also comprise afterwards:
then utilize the subband in the said scheduling bandwidth set to calculate the corresponding figuration factor of said scheduling bandwidth set if said UE need use the wave beam forming factor.
6. The method of claim 1 is characterized in that, said performance information and said amount of bandwidth M according to each subband i Be user equipment (UE) selection scheduling bandwidth aggregation, also comprise afterwards:
are if said UE need then utilize the CQI value of full bandwidth and preset rollback value calculating priority level value based on the outer subband calculating priority level of said scheduling bandwidth set.
7. The method of claim 1 is characterized in that, said performance information and said amount of bandwidth M according to each subband i Be user equipment (UE) selection scheduling bandwidth aggregation, also comprise afterwards:
are if said UE need then utilize the average back of channel space matrix of the subband outside the said scheduling bandwidth set to decompose the figuration factor that the weights that obtain calculate correspondence based on the outer subband compute beam figuration factor of said scheduling bandwidth set.
8. A kind of equipment of bandwidth scheduling is characterized in that, comprising:
Determination module is used for definite amount of bandwidth M that dispatches i
Select module, be used for performance information and said amount of bandwidth M according to each subband i Be user equipment (UE) selection scheduling bandwidth aggregation;
scheduler module is used to utilize the subband in the said scheduling bandwidth set that said UE is dispatched.
9. Equipment as claimed in claim 8 is characterized in that,
Said determination module specifically is used for confirming said amount of bandwidth M according to said UE corresponding service type i Perhaps,
Confirm said amount of bandwidth M according to said UE corresponding service type and cell load situation i
10. Equipment as claimed in claim 8 is characterized in that,
Said selection module specifically is used for according to the performance information of each subband each corresponding subband of said UE being sorted, and chooses preceding M according to ranking results i Individual subband is as the scheduling bandwidth set of said UE.
11. Equipment as claimed in claim 10 is characterized in that,
said selection module is further used for according to the channel quality indicator (CQI) value and/or the revised modulation coding mode MCS grade of each subband each corresponding subband of said UE being sorted.
12. Equipment as claimed in claim 8 is characterized in that, also comprises:
computing module is used for when said UE need use the wave beam forming factor, then utilizes the subband in the said scheduling bandwidth set to calculate the corresponding figuration factor of said scheduling bandwidth set.
13. Equipment as claimed in claim 8 is characterized in that, also comprises:
computing module when being used for the subband calculating priority level outside said UE need gather based on said scheduling bandwidth, then utilizing the CQI value of full bandwidth and presets rollback value calculating priority level value.
14. Equipment as claimed in claim 8 is characterized in that, also comprises:
computing module; When being used for the subband compute beam figuration factor outside said UE need gather based on said scheduling bandwidth, the corresponding figuration factor of weights calculating that the channel space matrix average back decomposition that then utilizes said scheduling bandwidth to gather outer subband obtains.
CN2012100633132A 2012-03-12 2012-03-12 Bandwidth scheduling method and equipment Pending CN102625452A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107872830A (en) * 2016-09-28 2018-04-03 联芯科技有限公司 Calculate the method and apparatus of channel quality instruction
CN110890952A (en) * 2018-09-11 2020-03-17 展讯通信（上海）有限公司 PUCCH resource determination method and apparatus, storage medium, terminal, and base station
CN113194506A (en) * 2016-10-26 2021-07-30 华为技术有限公司 Communication method and device based on variable bandwidth

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CN101778480A (en) * 2010-01-08 2010-07-14 上海华为技术有限公司 Pretreating method, device and system in frequency domain resource scheduling
CN101820685A (en) * 2010-04-15 2010-09-01 新邮通信设备有限公司 Frequency selectivity dispatching method and base station
CN102098785A (en) * 2009-12-14 2011-06-15 中兴通讯股份有限公司 Wireless communication resource allocation method and device
CN102340875A (en) * 2010-07-23 2012-02-01 华为技术有限公司 Method and device for allocating resources

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Publication number Priority date Publication date Assignee Title
CN102098785A (en) * 2009-12-14 2011-06-15 中兴通讯股份有限公司 Wireless communication resource allocation method and device
CN101778480A (en) * 2010-01-08 2010-07-14 上海华为技术有限公司 Pretreating method, device and system in frequency domain resource scheduling
CN101820685A (en) * 2010-04-15 2010-09-01 新邮通信设备有限公司 Frequency selectivity dispatching method and base station
CN102340875A (en) * 2010-07-23 2012-02-01 华为技术有限公司 Method and device for allocating resources

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107872830A (en) * 2016-09-28 2018-04-03 联芯科技有限公司 Calculate the method and apparatus of channel quality instruction
CN113194506A (en) * 2016-10-26 2021-07-30 华为技术有限公司 Communication method and device based on variable bandwidth
CN113194506B (en) * 2016-10-26 2024-01-19 华为技术有限公司 Communication method and device based on variable bandwidth
CN110890952A (en) * 2018-09-11 2020-03-17 展讯通信（上海）有限公司 PUCCH resource determination method and apparatus, storage medium, terminal, and base station
CN110890952B (en) * 2018-09-11 2021-09-14 展讯通信（上海）有限公司 PUCCH resource determination method and apparatus, storage medium, terminal, and base station

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Application publication date: 20120801