CN102821475A - User dispatching method and device - Google Patents
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- CN102821475A CN102821475A CN2011101561480A CN201110156148A CN102821475A CN 102821475 A CN102821475 A CN 102821475A CN 2011101561480 A CN2011101561480 A CN 2011101561480A CN 201110156148 A CN201110156148 A CN 201110156148A CN 102821475 A CN102821475 A CN 102821475A
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Abstract
The invention discloses a user dispatching method and a user dispatching device. The user dispatching method comprises the following steps: aiming at each concentrated cooperative cell in a CoMP (coordinated multi-point) cell to respectively determine each to-be-dispatched user in the cooperative cell, obtaining spectrum efficiency respectively corresponding to each determined to-be-dispatched user, and orderly dispatching each to-be-dispatched user according to the corresponding sequence from the high spectrum efficiency to the low spectrum efficiency. With the adoption of the technical scheme of the invention, the problems existing in the prior art that the users at the edge of the cell are hard to dispatch, and the system capacity is relatively low can be solved.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of user scheduling method and device.
Background technology
Multipoint cooperative (CoMP; Coordinated Multi-Point) the transmission point that is meant the separate dispersion in a plurality of geographical position is through different cooperation modes (for example joint transmission mode, Combined Treatment mode, cooperative scheduling mode etc.); User's data transmission of collaborative participation receives quality of signals to improve Cell Edge User.The CoMP technology is the cooperation between the sub-district; Traditional single sub-district-multi-user system framework is expanded to many sub-districts-multi-user system framework; Therefore Cell Edge User can be used as the central user of collaboration region; These users will obtain better service, have blured the difference of Cell Center User and Cell Edge User to a certain extent.
The appearance of CoMP technology has changed Long Term Evolution (LTE; Long Term Evolution) system and senior Long Term Evolution (LTE-A; Long Term Evolution-Advanced) in the system, the same time has only the situation of a sub-district for certain user's service, thereby has increased the covering of high data rate; Improve the throughput of cell edge, increased the throughput of system.
In the prior art, when the user is dispatched, to respectively treating dispatched users in the sub-district; Generally according to by the order of Cell Center User to Cell Edge User; Dispatched users is respectively treated in scheduling successively, that is to say the priority scheduling Cell Center User, and then the dispatching cell edge customer; When the dispatching cell edge customer, can carry out the CoMP transmission as required.
Therefore prior art is dispatched successively and is respectively treated dispatched users according to by the order of Cell Center User to Cell Edge User; Because the band resource of each sub-district is limited, possibly make that therefore Cell Edge User is difficult to obtain scheduling, in addition; The required band resource of Cell Edge User maybe be less than the required band resource of Cell Center User, so when the user is dispatched, if the priority scheduling Cell Center User; The dispatching cell edge customer possibly make that then the capacity of system is lower again.
Summary of the invention
The embodiment of the invention provides a kind of user scheduling method and device, is difficult to obtain scheduling and the lower problem of power system capacity in order to solve the Cell Edge User that exists in the prior art.
Embodiment of the invention technical scheme is following:
A kind of user scheduling method, the method comprising the steps of: to each cooperation cell in the multipoint cooperative CoMP cell set, confirm respectively respectively to treat dispatched users in this cooperation cell; The spectrum efficiency of respectively treating dispatched users difference correspondence that acquisition is determined; According to the spectrum efficiency order from high to low of correspondence, successively to treating that respectively dispatched users dispatches.
A kind of user dispatching device comprises: treat that dispatched users confirms the unit, be used for each cooperation cell to multipoint cooperative CoMP cell set, confirm respectively respectively to treat dispatched users in this cooperation cell; Spectrum efficiency obtains the unit, is used to obtain to treat that dispatched users confirms that the unit determines respectively treats the spectrum efficiency that dispatched users is corresponding respectively; User's scheduling unit is used for the spectrum efficiency order from high to low according to correspondence, successively to treating that respectively dispatched users dispatches.
Beneficial effect of the present invention is following:
In the embodiment of the invention technical scheme; To each cooperation cell in the CoMP cell set; Confirm respectively respectively to treat dispatched users in this cooperation cell; Acquisition is determined respectively treats the spectrum efficiency that dispatched users is corresponding respectively, according to the spectrum efficiency order from high to low of correspondence, successively to treating that respectively dispatched users dispatches.Therefore; Embodiment of the invention technical scheme no longer according to by the order of Cell Center User to Cell Edge User, is dispatched successively and is respectively treated dispatched users, but dispatch successively according to the spectrum efficiency order from high to low of correspondence; The corresponding high user of spectrum efficiency possibly not be a Cell Center User; Therefore possibly be Cell Edge User, can solve Cell Edge User and be difficult to the problem that obtains dispatching, and improve power system capacity.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes a part of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is in the embodiment of the invention, the user scheduling method schematic flow sheet;
Fig. 2 is in the embodiment of the invention, the concrete realization flow sketch map of user scheduling method;
Fig. 3 is in the embodiment of the invention, the user dispatching device structural representation.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 1, in the embodiment of the invention, the user scheduling method schematic flow sheet, its concrete handling process is following:
Step 11 to each cooperation cell in the CoMP cell set, is confirmed respectively respectively to treat dispatched users in this cooperation cell;
Wherein, determine each cooperation cell in the CoMP cell set earlier,, confirm respectively respectively to treat dispatched users in this cooperation cell then to each cooperation cell.
Step 12, the spectrum efficiency of respectively treating dispatched users difference correspondence that obtains to determine;
In the embodiment of the invention, obtain to determine respectively treat dispatched users respectively corresponding spectrum efficiency process can but be not limited to following:
At first the band resource of all cooperation cell in the CoMP cooperation collection is concentrated and considered; To each cooperation cell in the CoMP cell set; Band resource with this cooperation cell is divided into CoMP band resource and non-CoMP band resource respectively, treats dispatched users to each that determine, judges this respectively and treats whether dispatched users is Cell Center User; If judged result is for being; Then do not consider to open CoMP, the frequency band of dispatched users is limited to non-CoMP band resource, in non-CoMP band resource, confirms this and treats the spectrum efficiency of dispatched users; If judged result is then opened CoMP for not, the frequency band of dispatched users is limited to the CoMP band resource, in the CoMP band resource, confirms this and treats the spectrum efficiency of dispatched users.
Wherein, the CoMP band resource of each cooperation cell can be identical, so just guaranteed that Cell Edge User can assign to the same frequency band resource that is used for CoMP.In addition, each cooperation cell also maybe corresponding different CoMP band resource, and the division of CoMP band resource and non-CoMP band resource is that the operating position according to cooperation cell CoMP decides.
When confirming that in non-CoMP band resource this treats the spectrum efficiency of dispatched users, can obtain this channel quality indication (CQI, Channel Quality Indicator) information of treating the dispatched users feedback and order indication (RI, Rank Indication) information earlier; According to the CQI information and the RI information that obtain; Required modulation coding mode (MCS when confirming in the non-CoMP band resource that marks off this user of scheduling; The number of size Modulation and Coding Scheme), Resource Block (RB, Resource Block) and the number of data flow; According to the size of the MCS that determines, the number of RB and the number of data flow, confirm the spectrum efficiency that this treats dispatched users.
When confirming that in the CoMP band resource this treats the spectrum efficiency of dispatched users; Earlier in each cooperation cell from the CoMP cell set; Determine each candidate's cooperation cell, select in candidate's cooperation cell then and satisfy a pre-conditioned defined amount cooperation cell, for example select two cooperation cell; When confirming that the cooperation cell of selecting is dispatched this and treated dispatched users in the CoMP band resource, this treats the spectrum efficiency of dispatched users.Wherein, Above-mentioned pre-conditioned MCS required when adopting the Combined Treatment mode to dispatch this to treat dispatched users for the cooperation cell selected is maximum; And can realize multiple-input and multiple-output (MIMO, Multiple-Input Multiple-Output) transmission in the cooperation cell of selecting.
Step 13 is according to the spectrum efficiency order from high to low of correspondence, successively to treating that respectively dispatched users dispatches.
After obtaining respectively to treat the spectrum efficiency of dispatched users, according to the spectrum efficiency order from high to low of correspondence, sort earlier, according to the order that obtains after the ordering, successively to treating that respectively dispatched users dispatches to respectively treating dispatched users.
If at least two are treated that the corresponding spectrum efficiencies of dispatched users equate, then these spectrum efficiencies of scheduling equate respectively treat dispatched users the time, according to dispatching successively to the order of Cell Edge User by Cell Center User.For example comprise 5 in the collaboration region of CoMP cell set correspondence and treat dispatched users, be respectively user 1, user 2, user 3, user 4 and user 5, user's 1 corresponding spectrum efficiency is P1, and user's 2 corresponding spectrum efficiencies are P2; User's 3 corresponding spectrum efficiencies are P3, and user's 4 corresponding spectrum efficiencies are P4, and user's 5 corresponding spectrum efficiencies are P5, wherein; P1, P2, P3 equate, and P4＞P5＞P1, therefore; When scheduling was respectively treated dispatched users, priority scheduling user 4, and dispatched users 5 then.Because P1, P2, P3 equate, the order when therefore needing to confirm dispatched users 1, user 2 and user 3, wherein user 1 is a Cell Edge User with user 2; User 3 is a Cell Center User; Therefore after dispatched users 5, preferentially user 3 is dispatched, then user of picked at random from user 1 and user 2; The user that priority scheduling selects dispatches another user then.
Can know by above-mentioned processing procedure; In the embodiment of the invention technical scheme; To each cooperation cell in the CoMP cell set, confirm respectively respectively to treat dispatched users in this cooperation cell that what obtain to determine respectively treats the spectrum efficiency that dispatched users is corresponding respectively; According to the spectrum efficiency order from high to low of correspondence, successively to treating that respectively dispatched users dispatches.Therefore; Embodiment of the invention technical scheme no longer according to by the order of Cell Center User to Cell Edge User, is dispatched successively and is respectively treated dispatched users, but dispatch successively according to the spectrum efficiency order from high to low of correspondence; The corresponding high user of spectrum efficiency possibly not be a Cell Center User; Therefore possibly be Cell Edge User, can solve Cell Edge User and be difficult to the problem that obtains dispatching, and improve power system capacity.
Provide more concrete execution mode below.
As shown in Figure 2, in the embodiment of the invention, the concrete realization flow sketch map of user scheduling method, its concrete processing procedure is following:
Step 23, to each cooperation cell in the CoMP cell set, the band resource with this cooperation cell is divided into CoMP band resource and non-CoMP band resource respectively;
Accordingly, the embodiment of the invention also provides a kind of user dispatching device, and its structure is as shown in Figure 3, comprise treating that dispatched users confirms that unit 31, spectrum efficiency obtain unit 32 and user's scheduling unit 33, wherein:
Treat that dispatched users confirms unit 31, be used for each cooperation cell, confirm respectively respectively to treat dispatched users in this cooperation cell to the CoMP cell set;
Spectrum efficiency obtains unit 32, is used to obtain to treat that dispatched users confirms that unit 31 determines respectively treats the spectrum efficiency that dispatched users is corresponding respectively;
User's scheduling unit 33 is used for the spectrum efficiency order from high to low according to correspondence, successively to treating that respectively dispatched users dispatches.
Preferably, spectrum efficiency obtains unit 32 and comprises that specifically resource division subelement, user's judgment sub-unit, first spectrum efficiency confirm that the subelement and second spectrum efficiency confirm subelement, wherein:
The resource division subelement is used for each cooperation cell to the CoMP cell set, and the band resource with this cooperation cell is divided into CoMP band resource and non-CoMP band resource respectively;
User's judgment sub-unit, each that is used for to treating that dispatched users confirms to determine unit 31 treated dispatched users, judges this respectively and treats whether dispatched users is Cell Center User;
First spectrum efficiency is confirmed subelement, is used in the judged result of user's judgment sub-unit in non-CoMP band resource, confirming this and treating the spectrum efficiency of dispatched users when being;
Second spectrum efficiency is confirmed subelement, is used in the judged result of user's judgment sub-unit then in the CoMP band resource, confirming this and treating the spectrum efficiency of dispatched users for not the time.
More preferably, first spectrum efficiency confirms that subelement specifically comprises acquisition module, determination module and the first spectrum efficiency determination module, wherein:
Obtain module, be used in the judged result of user's judgment sub-unit obtaining the CQI information and the RI information of this user feedback when being;
Determination module is used for according to obtaining CQI information and the RI information that module obtains, size, the number of RB and the number of data flow of required MCS when confirming in non-CoMP band resource, to dispatch this user;
The first spectrum efficiency determination module, size, the number of RB and the number of data flow of the MCS that is used for determining according to determination module are confirmed the spectrum efficiency that this treats dispatched users.
More preferably, second spectrum efficiency confirms that subelement specifically comprises the first spectrum efficiency determination module and the second spectrum efficiency determination module, wherein:
Cooperation cell is selected module, is used in the judged result of user's judgment sub-unit in each cooperation cell from the CoMP cell set, selecting and satisfying a pre-conditioned defined amount cooperation cell for not the time;
The second spectrum efficiency determination module, when being used for confirming that cooperation cell that cooperation cell selects module to select is dispatched this and treated dispatched users in the CoMP band resource, this treats the spectrum efficiency of dispatched users.
More preferably, saidly pre-conditionedly be: MCS required when the cooperation cell of selecting adopts the Combined Treatment mode to dispatch this to treat dispatched users is maximum, and can realize the MIMO transmission in the cooperation cell that select.
Preferably, if at least two are treated that the corresponding spectrum efficiency of dispatched users equates, then user's scheduling unit 33 is dispatched the equal dispatched users of respectively treating of spectrum efficiency according to by the order of Cell Center User to Cell Edge User successively.
Above-mentioned explanation illustrates and has described a preferred embodiment of the present invention; But as previously mentioned; Be to be understood that the present invention is not limited to the form that this paper discloses, should do not regard eliminating as, and can be used for various other combinations, modification and environment other embodiment; And can in invention contemplated scope described herein, change through the technology or the knowledge of above-mentioned instruction or association area.And change that those skilled in the art carried out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of accompanying claims of the present invention.
Claims (12)
1. a user scheduling method is characterized in that, comprising:
To each cooperation cell in the multipoint cooperative CoMP cell set, confirm respectively respectively to treat dispatched users in this cooperation cell;
The spectrum efficiency of respectively treating dispatched users difference correspondence that acquisition is determined;
According to the spectrum efficiency order from high to low of correspondence, successively to treating that respectively dispatched users dispatches.
2. the method for claim 1 is characterized in that, the spectrum efficiency of respectively treating dispatched users difference correspondence that obtains to determine specifically comprises:
To each cooperation cell in the CoMP cell set, the band resource with this cooperation cell is divided into CoMP band resource and non-CoMP band resource respectively;
Treat dispatched users to each that determine, carry out respectively:
Judge this and treat whether dispatched users is Cell Center User;
If judged result is for being, then definite this treated the spectrum efficiency of dispatched users in non-CoMP band resource;
If judged result is then confirmed this and is treated the spectrum efficiency of dispatched users for not in the CoMP band resource.
3. method as claimed in claim 2 is characterized in that, in non-CoMP band resource, confirms this and treats the spectrum efficiency of dispatched users, specifically comprises:
Obtain this channel quality indicator (CQI) information of treating the dispatched users feedback and order indication RI information;
According to the CQI information and the RI information that obtain, size, the number of Resource Block RB and the number of data flow of required modulation coding mode MCS when confirming in the non-CoMP band resource that marks off, to dispatch this user;
According to the size of the MCS that determines, the number of RB and the number of data flow, confirm the spectrum efficiency that this treats dispatched users.
4. method as claimed in claim 2 is characterized in that, in the CoMP band resource, confirms this and treats the spectrum efficiency of dispatched users, specifically comprises:
In each cooperation cell from the CoMP cell set, select and satisfy a pre-conditioned defined amount cooperation cell;
When confirming that the cooperation cell of selecting is dispatched this and treated dispatched users in the CoMP band resource, this treats the spectrum efficiency of dispatched users.
5. method as claimed in claim 4 is characterized in that, saidly pre-conditionedly is:
MCS required when the cooperation cell selected adopts the Combined Treatment mode to dispatch this to treat dispatched users is maximum, and can realize multiple-input and multiple-output MIMO transmission in the cooperation cell that select.
6. the method for claim 1 is characterized in that, if at least two are treated that the corresponding spectrum efficiency of dispatched users equates, then according to by the order of Cell Center User to Cell Edge User, successively the equal dispatched users of respectively treating of spectrum efficiency is dispatched.
7. a user dispatching device is characterized in that, comprising:
Treat that dispatched users confirms the unit, be used for each cooperation cell, confirm respectively respectively to treat dispatched users in this cooperation cell to multipoint cooperative CoMP cell set;
Spectrum efficiency obtains the unit, is used to obtain to treat that dispatched users confirms that the unit determines respectively treats the spectrum efficiency that dispatched users is corresponding respectively;
User's scheduling unit is used for the spectrum efficiency order from high to low according to correspondence, successively to treating that respectively dispatched users dispatches.
8. device as claimed in claim 7 is characterized in that, spectrum efficiency obtains the unit and specifically comprises:
The resource division subelement is used for each cooperation cell to the CoMP cell set, and the band resource with this cooperation cell is divided into CoMP band resource and non-CoMP band resource respectively;
User's judgment sub-unit, each that is used for to treating that dispatched users confirms to determine the unit treated dispatched users, judges this respectively and treats whether dispatched users is Cell Center User;
First spectrum efficiency is confirmed subelement, is used in the judged result of user's judgment sub-unit in non-CoMP band resource, confirming this and treating the spectrum efficiency of dispatched users when being;
Second spectrum efficiency is confirmed subelement, is used in the judged result of user's judgment sub-unit then in the CoMP band resource, confirming this and treating the spectrum efficiency of dispatched users for not the time.
9. device as claimed in claim 8 is characterized in that, first spectrum efficiency confirms that subelement specifically comprises:
Obtain module, be used in the judged result of user's judgment sub-unit obtaining this channel quality indicator (CQI) information of treating the dispatched users feedback and order and indicating RI information when being;
Determination module is used for according to obtaining CQI information and the RI information that module obtains, size, the number of Resource Block RB and the number of data flow of required modulation coding mode MCS when confirming in non-CoMP band resource, to dispatch this user;
The first spectrum efficiency determination module, size, the number of RB and the number of data flow of the MCS that is used for determining according to determination module are confirmed the spectrum efficiency that this treats dispatched users.
10. device as claimed in claim 8 is characterized in that, second spectrum efficiency confirms that subelement specifically comprises:
Cooperation cell is selected module, is used in the judged result of user's judgment sub-unit in each cooperation cell from the CoMP cell set, selecting and satisfying a pre-conditioned defined amount cooperation cell for not the time;
The second spectrum efficiency determination module, when being used for confirming that cooperation cell that cooperation cell selects module to select is dispatched this and treated dispatched users in the CoMP band resource, this treats the spectrum efficiency of dispatched users.
11. device as claimed in claim 10 is characterized in that, saidly pre-conditionedly is:
MCS required when the cooperation cell selected adopts the Combined Treatment mode to dispatch this to treat dispatched users is maximum, and can realize multiple-input and multiple-output MIMO transmission in the cooperation cell that select.
12. device as claimed in claim 7; It is characterized in that; If at least two are treated that the corresponding spectrum efficiency of dispatched users equates, then user's scheduling unit is dispatched the equal dispatched users of respectively treating of spectrum efficiency according to by the order of Cell Center User to Cell Edge User successively.
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| CN2011101561480A CN102821475A (en) | 2011-06-10 | 2011-06-10 | User dispatching method and device |
| PCT/CN2012/071479 WO2012167634A1 (en) | 2011-06-10 | 2012-02-22 | Method and appatatus for user scheduling |
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| CN2011101561480A CN102821475A (en) | 2011-06-10 | 2011-06-10 | User dispatching method and device |
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| CN106899993A (en) * | 2017-04-02 | 2017-06-27 | 上海无线通信研究中心 | Network optimized approach and its base station towards extensive MIMO networks |
| CN109076523A (en) * | 2016-04-01 | 2018-12-21 | 华为技术有限公司 | The system and method dispatched and transmitted for distributed loop-opening multi-user multipoint cooperative (CoMP) |
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| WO2012167634A1 (en) | 2012-12-13 |
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