CN105991273B - Method and device for distributing data to be scheduled - Google Patents
Method and device for distributing data to be scheduled Download PDFInfo
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- CN105991273B CN105991273B CN201510083451.0A CN201510083451A CN105991273B CN 105991273 B CN105991273 B CN 105991273B CN 201510083451 A CN201510083451 A CN 201510083451A CN 105991273 B CN105991273 B CN 105991273B
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- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
Abstract
The embodiment of the invention discloses a method and a device for distributing data to be scheduled, wherein the distribution method comprises the following steps: when the current allocation period is reached, acquiring data to be scheduled of the terminal; acquiring bandwidth information and channel quality information of each component carrier aggregated by the terminal; wherein the total number of the component carriers aggregated by the terminal is at least one; and allocating the data to be scheduled of the terminal to each component carrier aggregated by the terminal according to the bandwidth information and the channel quality information of each component carrier aggregated by the terminal and a preset allocation rule.
Description
Technical Field
The present invention relates to wireless communication technologies, and in particular, to a method and an apparatus for allocating data to be scheduled.
Background
The carrier aggregation technology is a core technology in Long Term Evolution (LTE-a) of mobile communication, and aggregates multiple carriers into a large transmission bandwidth, so that a terminal with carrier aggregation capability can have resources of multiple component carriers available. So that data may be transmitted or received simultaneously on one or more component carriers.
A Buffer State Report (BSR) provides data to be scheduled in a Buffer of a terminal to a serving base station, and in an LTE system, after a scheduler acquires the BSR, the scheduler allocates the data to be scheduled only on one carrier. At present, in an LTE-a system, there is no method for allocating data to be scheduled of a terminal among multiple component carriers in carrier aggregation.
Disclosure of Invention
In order to solve the foregoing technical problems, embodiments of the present invention desirably provide a method and an apparatus for allocating data to be scheduled, so that the data to be scheduled in a terminal buffer can be effectively allocated among component carriers, and the effect of simultaneous reception and simultaneous transmission of data on the component carriers by a terminal is achieved.
The technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for allocating data to be scheduled, where the method includes:
when the current allocation period is reached, acquiring data to be scheduled of the terminal;
acquiring bandwidth information and channel quality information of each component carrier aggregated by the terminal; wherein the total number of the component carriers aggregated by the terminal is at least one;
and allocating the data to be scheduled of the terminal to each component carrier aggregated by the terminal according to the bandwidth information and the channel quality information of each component carrier aggregated by the terminal and a preset allocation rule.
Further, the allocating the data to be scheduled of the terminal to the component carriers aggregated by the terminal according to the bandwidth information and the channel quality information of the component carriers aggregated by the terminal and a preset allocation rule specifically includes:
obtaining data BSR _ CC to be scheduled of the terminal to which the ith component carrier of the terminal aggregation is distributed according to the following formulai：
Wherein ceil (·) represents the smallest integer greater than or equal to ·; BSR-UE is the size of data to be scheduled of the terminal; w _ BW _ CCiA bandwidth of an ith component carrier aggregated for the terminal; w _ CQ _ CCiA weight corresponding to channel quality information of an ith component carrier aggregated for the terminal; w _ BW _ CCaA bandwidth of an a-th component carrier aggregated for the terminal; w _ CQ _ CCaA weight corresponding to channel quality information of an a-th component carrier aggregated for the terminal; and N is the total number of the component carriers aggregated by the terminal.
Further, when any component carrier aggregated by the terminal is not scheduled or the channel quality information of any component carrier aggregated by the terminal is judged to be invalid according to a preset invalidation judgment strategy, weights corresponding to the channel quality information of all the component carriers aggregated by the terminal are equal.
Further, the weight corresponding to the channel quality information of the ith component carrier aggregated by the terminal includes: and the channel quality indicator CQI or the modulation and coding strategy MCS or the spectrum efficiency SE of the ith component carrier aggregated by the terminal.
Further, the acquiring data to be scheduled of the terminal includes:
receiving a Buffer Status Report (BSR) sent by the terminal;
and analyzing the BSR to obtain the data to be scheduled in the terminal buffer area.
In a second aspect, an embodiment of the present invention provides an apparatus for allocating data to be scheduled, where the apparatus includes: a first acquisition unit, a second acquisition unit, and an allocation unit, wherein,
the first obtaining unit is used for obtaining data to be scheduled of the terminal when the current allocation period is reached;
the second obtaining unit is configured to obtain bandwidth information and channel quality information of each component carrier aggregated by the terminal; wherein the total number of the component carriers aggregated by the terminal is at least one;
the allocating unit is configured to allocate the data to be scheduled of the terminal to each component carrier aggregated by the terminal according to the bandwidth information and the channel quality information of each component carrier aggregated by the terminal and a preset allocation rule.
Further, the allocating unit is specifically configured to obtain, according to the following formula, to-be-scheduled data BSR _ CC of the terminal to which the ith component carrier of the terminal aggregation is allocatedi：
Wherein ceil (·) represents the smallest integer greater than or equal to ·; BSR-UE is the size of data to be scheduled of the terminal; w _ BW _ CCiA bandwidth of an ith component carrier aggregated for the terminal; w _ CQ _ CCiA weight corresponding to channel quality information of an ith component carrier aggregated for the terminal; w _ BW _ CCaA bandwidth of an a-th component carrier aggregated for the terminal; w _ CQ _ CCaA weight corresponding to channel quality information of an a-th component carrier aggregated for the terminal; and N is the total number of the component carriers aggregated by the terminal.
Further, when any component carrier aggregated by the terminal is not scheduled or the channel quality information of any component carrier aggregated by the terminal is judged to be invalid according to a preset invalidation judgment strategy, weights corresponding to the channel quality information of all the component carriers aggregated by the terminal are equal.
Further, the weight corresponding to the channel quality information of the ith component carrier aggregated by the terminal includes: and the channel quality indicator CQI or the modulation and coding strategy MCS or the spectrum efficiency SE of the ith component carrier aggregated by the terminal.
Further, the first obtaining unit comprises a receiving module and an analyzing module, wherein,
the receiving module is configured to receive a buffer status report BSR sent by the terminal;
and the analysis module is used for analyzing the BSR to acquire the data to be scheduled in the terminal buffer.
The embodiment of the invention provides a method and a device for distributing data to be scheduled, which are used for distributing the data to be scheduled according to bandwidth information and channel quality information of each component carrier aggregated by a terminal, so that the data to be scheduled in a terminal buffer area can be effectively distributed among the component carriers, and the effect of receiving and sending the data on the component carriers simultaneously by the terminal is realized.
Drawings
Fig. 1 is a schematic flow chart of a method for allocating data to be scheduled according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an apparatus for allocating data to be scheduled according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another apparatus for allocating data to be scheduled according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, it shows a flow of a method for allocating data to be scheduled according to an embodiment of the present invention, where the method may be applied to an apparatus that allocates data to be scheduled of a terminal to component carriers aggregated by the terminal, and the method may include:
s101: when the current allocation period is reached, acquiring data to be scheduled of the terminal;
it should be noted that the allocation period can be manually set, and the specific implementation can be managed by a timer. If the period of BSR allocation is set to be 1s, that is, 1s, the allocation process of the data to be scheduled described in this embodiment is performed once. And when the current time reaches the distribution period of the BSR, starting to distribute the data to be scheduled.
For example, the obtaining of the data to be scheduled of the terminal may specifically include:
receiving a Buffer State Report (BSR) sent by a terminal;
and analyzing the BSR to obtain data to be scheduled in a terminal buffer.
It should be noted that the BSR may be a downlink BSR or an uplink BSR, and therefore, the data to be scheduled of the terminal may be data that the terminal needs to transmit in an uplink buffer or data that the terminal needs to receive in a downlink buffer. Therefore, the embodiment can realize that the uplink and downlink data of the terminal are distributed on each component carrier, thereby realizing the effect that the terminal receives and transmits the data on each component carrier simultaneously.
S102: acquiring bandwidth information and channel quality information of each component carrier aggregated by a terminal; wherein, the total number of the component carriers aggregated by the terminal is at least one;
s103: allocating data to be scheduled of the terminal to each component carrier aggregated by the terminal according to bandwidth information and channel quality information of each component carrier aggregated by the terminal and a preset allocation rule;
exemplarily, step S103 may specifically include: obtaining data BSR _ CC to be scheduled of the terminal to which the ith component carrier of the terminal aggregation is distributed by formula (1)i：
Wherein ceil (·) represents the smallest integer greater than or equal to ·; data to be scheduled with BSR-UE as terminal is largeSmall; w _ BW _ CCiA bandwidth of an ith component carrier aggregated for the terminal; w _ CQ _ CCiWeight corresponding to the channel quality information of the ith component carrier aggregated by the terminal; w _ BW _ CCaA bandwidth of an a-th component carrier aggregated for the terminal; w _ CQ _ CCaWeight corresponding to the channel quality information of the a-th component carrier aggregated for the terminal; and N is the total number of the component carriers aggregated by the terminal.
Preferably, the weight corresponding to the Channel Quality information of the ith component carrier aggregated by the terminal may be represented by a Channel Quality Indicator (CQI) or a Modulation and Coding Scheme (MCS) or a Spectral Efficiency (SE) of the ith component carrier aggregated by the terminal; in the embodiment of the present invention, the CQI of the component carrier is used as the weight corresponding to the channel quality information for explanation, and it can be understood that other channel quality information representation forms of the component carrier may also be applied to the technical solution of the embodiment of the present invention, and are not described herein again.
It should be noted that, when any component carrier aggregated by the terminal is not scheduled or the channel quality information of any component carrier aggregated by the terminal is determined to be invalid according to a preset invalidation determination policy, weights corresponding to the channel quality information of all component carriers aggregated by the terminal are equal; in this embodiment, the weights corresponding to the channel quality information of all component carriers at this time are all represented by 1.
In this embodiment, the preset failure determination policy may be that the channel quality information of any component carrier is determined to be failed if the component carrier is not scheduled again within a preset time interval after the channel quality information of the component carrier is scheduled; in this embodiment, the preset time interval may be 80 ms.
The following two specific cases are explained in detail with reference to the technical solutions of the above embodiments:
the first condition is as follows: setting the size of data to be scheduled BSR-UE in a buffer area represented by a terminal BSR to be 15000 bits, aggregating 3 Component Carriers (CC) by the terminal, and respectively marking the data to be scheduled BSR-UE as CC1，CC2And CC3(ii) a Wherein, CC1Bandwidth W _ BW _ CC of1＝10MHz，CC2Bandwidth W _ BW _ CC of2＝10MHz，CC3Bandwidth W _ BW _ CC3When the channel quality information on CC2 is set to be invalid at 10MHz, the weight W _ CQ _ CC corresponding to the channel quality information of each CC is the same, and is denoted by 1 in this embodiment. The size of the data to be scheduled, which is allocated to each CC, can be obtained according to equation (1):
case two: setting the size of data to be scheduled BSR-UE in a buffer area represented by a terminal BSR to be 15000 bits, aggregating 3 CCs for the terminal, and respectively marking the CCs as CCs1，CC2And CC3(ii) a Wherein, CC1Bandwidth W _ BW _ CC of1＝10MHz，CC2Bandwidth W _ BW _ CC of2＝15MHz，CC3Bandwidth W _ BW _ CC3Set up CC with CQI as the weight corresponding to the channel quality information at 20MHz1CQI-5, CC2CQI-10, CC3CQI over 12. Therefore, according to equation (1), the size of the data to be scheduled, which is allocated to each CC, can be obtained as follows:
CC1is/are as follows
CC2Is/are as follows
CC3Is/are as follows
As can be seen from the above description of the two cases, in the technical scheme of this embodiment, in the process of allocating the data to be scheduled, the bandwidth information and the channel quality of each CC are considered in combination, so that the data to be scheduled in the terminal buffer can be effectively allocated among each component carrier.
The method for allocating the data to be scheduled, provided by the embodiment of the present invention, allocates the data to be scheduled according to the bandwidth information and the channel quality information of each component carrier aggregated by the terminal, so that the data to be scheduled in the terminal buffer can be effectively allocated among the component carriers, and the effect of simultaneous reception and simultaneous transmission of the data on the component carriers by the terminal is achieved.
Based on the same technical concept as the foregoing embodiment, referring to fig. 2, an allocating apparatus 20 for data to be scheduled according to an embodiment of the present invention is shown, where the allocating apparatus 20 may include: a first acquisition unit 201, a second acquisition unit 202, and an allocation unit 203, wherein,
a first obtaining unit 201, configured to obtain data to be scheduled of a terminal when a current allocation period arrives;
a second obtaining unit 202, configured to obtain bandwidth information and channel quality information of each component carrier aggregated by the terminal; wherein, the total number of the component carriers aggregated by the terminal is at least one;
an allocating unit 203, configured to allocate data to be scheduled of the terminal to each component carrier aggregated by the terminal according to the bandwidth information and the channel quality information of each component carrier aggregated by the terminal and a preset allocation rule.
Exemplarily, the allocating unit 203 is specifically configured to obtain the data to be scheduled BSR _ CC of the terminal to which the ith component carrier of the terminal aggregation is allocated by equation (2)i：
Wherein ceil (·) represents the smallest integer greater than or equal to ·; BSR-UE is the size of data to be scheduled of the terminal; w _ BW _ CCiA bandwidth of an ith component carrier aggregated for the terminal; w _ CQ _ CCiWeight corresponding to the channel quality information of the ith component carrier aggregated by the terminal; w _ BW _ CCaA bandwidth of an a-th component carrier aggregated for the terminal; w _ CQ _ CCaWeight corresponding to the channel quality information of the a-th component carrier aggregated for the terminal; n is the total number of the component carriers aggregated by the terminal。
Further, when any component carrier aggregated by the terminal is not scheduled or the channel quality information of any component carrier aggregated by the terminal is determined to be invalid according to a preset invalidation determination strategy, the weights corresponding to the channel quality information of all the component carriers aggregated by the terminal are equal.
Further, the weight corresponding to the channel quality information of the ith component carrier aggregated by the terminal includes: and the channel quality indicator CQI or the modulation and coding strategy MCS or the spectrum efficiency SE of the ith component carrier aggregated by the terminal.
Illustratively, referring to fig. 3, the first obtaining unit 201 may include a receiving module 2011 and a parsing module 2012, wherein,
a receiving module 2011, configured to receive a buffer status report BSR sent by a terminal;
the parsing module 2012 is configured to parse the BSR to obtain data to be scheduled in the terminal buffer.
The apparatus 20 for allocating data to be scheduled according to the embodiment of the present invention allocates data to be scheduled according to bandwidth information and channel quality information of each component carrier aggregated by a terminal, so that the data to be scheduled in a terminal buffer can be effectively allocated among the component carriers, and the effect of simultaneous reception and simultaneous transmission of data on the component carriers by the terminal is achieved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (8)
1. A method for allocating data to be scheduled, the method comprising:
when the current allocation period is reached, acquiring data to be scheduled of the terminal;
acquiring bandwidth information and channel quality information of each component carrier aggregated by the terminal; wherein the total number of the component carriers aggregated by the terminal is at least one;
obtaining data to be scheduled of the terminal to which each component carrier is allocated according to bandwidth information and channel quality information of each component carrier aggregated by the terminal and a preset allocation rule, and allocating the data to be scheduled of the terminal to each component carrier aggregated by the terminal; the allocating, according to the bandwidth information and the channel quality information of each component carrier aggregated by the terminal and a preset allocation rule, data to be scheduled of the terminal to each component carrier aggregated by the terminal specifically includes:
obtaining data BSR _ CC to be scheduled of the terminal to which the ith component carrier of the terminal aggregation is distributed according to the following formulai：
Wherein ceil (·) represents the smallest integer greater than or equal to ·; BSR-UE is the size of data to be scheduled of the terminal; w _ BW _ CCiA bandwidth of an ith component carrier aggregated for the terminal; w _ CQ _ CCiA weight corresponding to channel quality information of an ith component carrier aggregated for the terminal; w _ BW _ CCaA bandwidth of an a-th component carrier aggregated for the terminal; w _ CQ _ CCaA weight corresponding to channel quality information of an a-th component carrier aggregated for the terminal; and N is the total number of the component carriers aggregated by the terminal.
2. The allocation method according to claim 1, wherein when any component carrier aggregated by the terminal is not scheduled or the channel quality information of any component carrier aggregated by the terminal is determined to be invalid according to a preset invalidation determination policy, the weights corresponding to the channel quality information of all component carriers aggregated by the terminal are all equal.
3. The allocation method according to claim 1, wherein the weight corresponding to the channel quality information of the ith component carrier aggregated by the terminal comprises: and the channel quality indicator CQI or the modulation and coding strategy MCS or the spectrum efficiency SE of the ith component carrier aggregated by the terminal.
4. The allocation method according to claim 1, wherein the obtaining data to be scheduled of the terminal comprises:
receiving a Buffer Status Report (BSR) sent by the terminal;
and analyzing the BSR to obtain the data to be scheduled in the terminal buffer area.
5. An apparatus for allocating data to be scheduled, the apparatus comprising: a first acquisition unit, a second acquisition unit, and an allocation unit, wherein,
the first obtaining unit is used for obtaining data to be scheduled of the terminal when the current allocation period is reached;
the second obtaining unit is configured to obtain bandwidth information and channel quality information of each component carrier aggregated by the terminal; wherein the total number of the component carriers aggregated by the terminal is at least one;
the allocation unit is configured to obtain data to be scheduled of the terminal to which each component carrier is allocated according to bandwidth information and channel quality information of each component carrier aggregated by the terminal and a preset allocation rule, and allocate the data to be scheduled of the terminal to each component carrier aggregated by the terminal; the allocating unit is specifically configured to obtain, according to the following formula, to-be-scheduled data BSR _ CC of the terminal to which the ith component carrier of the terminal aggregation is allocatedi：
Wherein ceil (·) represents the smallest integer greater than or equal to ·; BSR-UE is the size of data to be scheduled of the terminal; w _ BW _ CCiA bandwidth of an ith component carrier aggregated for the terminal; w _ CQ _ CCiA weight corresponding to channel quality information of an ith component carrier aggregated for the terminal; w _ BW _ CCaA bandwidth of an a-th component carrier aggregated for the terminal; w _ CQ _ CCaA weight corresponding to channel quality information of an a-th component carrier aggregated for the terminal; n isThe total number of component carriers aggregated by the terminal.
6. The apparatus according to claim 5, wherein when any component carrier aggregated by the terminal is not scheduled or the channel quality information of any component carrier aggregated by the terminal is determined to be invalid according to a preset invalidation determination policy, the weights corresponding to the channel quality information of all component carriers aggregated by the terminal are all equal.
7. The apparatus according to claim 5, wherein the weight corresponding to the channel quality information of the ith component carrier aggregated by the terminal comprises: and the channel quality indicator CQI or the modulation and coding strategy MCS or the spectrum efficiency SE of the ith component carrier aggregated by the terminal.
8. The distribution device according to claim 5, characterized in that said first acquisition unit comprises a reception module and an analysis module, wherein,
the receiving module is configured to receive a buffer status report BSR sent by the terminal;
and the analysis module is used for analyzing the BSR to acquire the data to be scheduled in the terminal buffer.
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| PCT/CN2015/093342 WO2016127670A1 (en) | 2015-02-13 | 2015-10-30 | Allocation method and apparatus for to-be-scheduled data |
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| CN102256366B (en) * | 2011-06-27 | 2015-04-08 | 北京邮电大学 | Multi-user multiple input multiple output (MIMO) resource scheduling method under carrier aggregation scene |
| CN102300330B (en) * | 2011-08-05 | 2014-05-14 | 郑侃 | Downlink resource scheduling method |
| US9337966B2 (en) * | 2012-07-25 | 2016-05-10 | Nec Corporation | Carrier aggregation |
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| CN101808364A (en) * | 2009-02-12 | 2010-08-18 | 大唐移动通信设备有限公司 | Carrier aggregation system business transmission method and equipment |
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| CN103222320A (en) * | 2011-11-17 | 2013-07-24 | 华为技术有限公司 | Carrier aggregation scheduling device, carrier aggregation scheduling method, and base station |
| CN103139918A (en) * | 2011-11-30 | 2013-06-05 | 华为技术有限公司 | Method, device and system of achieving data scheduling |
| WO2013172618A1 (en) * | 2012-05-14 | 2013-11-21 | 삼성전자 주식회사 | Method and device for processing buffer state report in wireless communication system using inter-enb carrier aggregation technology |
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