CN103718635B - A kind of method of scheduling user's set and base station - Google Patents

A kind of method of scheduling user's set and base station Download PDF

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Publication number
CN103718635B
CN103718635B CN201380000275.9A CN201380000275A CN103718635B CN 103718635 B CN103718635 B CN 103718635B CN 201380000275 A CN201380000275 A CN 201380000275A CN 103718635 B CN103718635 B CN 103718635B
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cell
user equipment
cells
serving cell
noise power
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CN103718635A (en
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李琦
辛嘉鹏
李小捷
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a kind of method of scheduling user's set and base station, it is related to communication technical field, in technical scheme provided by the invention, so that base station side is it is determined that during MCS, it can both consider other cells in measurement set of cells to interference caused by the down channel of serving cell, the channel estimation that base station side itself is carried out according to uplink channel information to down channel can be combined again, so as to improve accuracy of the base station to dispatching user facility.

Description

A kind of method of scheduling user's set and base station
Technical field
The present invention relates to communication technical field, more particularly to a kind of method of scheduling user's set and base station.
Background technology
Long Term Evolution (Long Term Evolution, LTE) system can support FDD (Frequency Division Duplexing, FDD) and two kinds of standards of time division duplex (Time Division Duplexing, TDD), supporting In TDD LTE-TDD systems, up-downgoing takes identical frequency range, by timing separation uplink and downlink, that is to say, that this is One feature of system is exactly up-downgoing channel occupancy identical frequency range, it is therefore contemplated that up-downgoing channel is approximately uniform, This is called " up-downgoing reciprocity ".According to this feature, in LTE-TDD systems, UE refers to according to certain rule emission detection Signal (Sounding Reference Signal, SRS) signal comes " detecting " up channel, evolved node B (evolved Node B, eNB) can is to SRS progress channel estimations, so as to obtain the information of up channel, and according to up channel Information determines the situation of down channel.In order to preferably estimate down channel, it is anti-that base station side also needs to user equipment Present channel quality instruction (Channel Quality Indicator, CQI).User equipment is when calculating CQI, it is necessary to false in advance Determine the transmission means of the downlink data of base station side, CQI is then calculated and to base station feedback according to the transmission means of hypothesis.Base station exists After the CQI for receiving user equipment transmission, calculated according to these CQI, and be user equipment distribution money according to result of calculation Source, realize the scheduling to user equipment.
During realizing that base station is scheduled to user equipment, base station side actually uses the transmission means of downlink data Can be different from the transmission means that user equipment is assumed, so resulting in base station side can enter according to the CQI of inaccuracy to down channel Row mistake estimation, so as to have impact on the distribution accuracy of transmission resource of base station, and then causes the efficiency of base station scheduling user equipment Reduce or the situation of the wasting of resources occurs.
The content of the invention
Embodiments of the invention provide method and the base station of a kind of scheduling user's set, improve base station to dispatching user facility Accuracy.
To reach above-mentioned purpose, embodiments of the invention adopt the following technical scheme that：
In a first aspect, the invention provides a kind of method of scheduling user's set, including：
The uplink channel information for treating each user equipment in the serving cell of scheduling user's set is obtained, wherein, the clothes Business cell belongs to measurement set of cells, and the measurement set of cells also includes at least one cooperation cell；
According to the uplink channel information and the schedule information of at least one cooperation cell, it is determined that the tune needed for scheduling Encoding scheme MCS processed；
According to the MCS, scheduling user's set allocation of transmission resources is treated to be described.
With reference in a first aspect, in the first possible implementation, all minizones in the measurement set of cells With dispatching sequence, and
If at least one cooperation cell includes scheduled cell dispatching sequence before the serving cell, described The schedule information of scheduled cell is included on each subband of the scheduled cell, the transmitting of the last scheduling user's set Weights and transmission power；And/or
If at least one cooperation cell includes unscheduled cell dispatching sequence after the serving cell, described The schedule information of unscheduled cell is included on each subband of the unscheduled cell, the transmitting of the last scheduling user's set Power.
With reference in a first aspect, or first aspect the first possible implementation, in second of possible implementation In, the uplink channel information is
The detection that all cells in the measurement set of cells are launched each user equipment in the serving cell Reference signal SRS measures what is obtained.
With reference in a first aspect, or first aspect the first or second of possible implementation, it is possible at the third In implementation, the MCS determined needed for scheduling, including：
According to the uplink channel information and the schedule information of at least one cooperation cell, each user is determined The descending channel information of equipment, the descending channel information of each user equipment include the user equipment on each subband Signal to Interference plus Noise Ratio；
According to the descending channel information of each user equipment, it is determined that the user of pre-scheduling sets on each subband It is standby；
Signal to Interference plus Noise Ratio on first subband is merged into processing, wherein the user of the pre-scheduling on first subband sets It is standby to treat scheduling user's set to be described；
According to the Signal to Interference plus Noise Ratio after merging, the MCS is determined.
With reference to the third possible implementation of first aspect, in the 4th kind of possible implementation, the determination On each subband after the user equipment of pre-scheduling, in addition to：
Determine that the serving cell dispatches the emission value and hair of the user equipment of the pre-scheduling on each subband Penetrate power；
Identified emission value and/or transmission power are sent at least one cooperation in measurement set of cells Cell it is part or all of.
It is described by institute in the 5th kind of possible implementation with reference to the 4th kind of possible implementation of first aspect The emission value and/or transmission power of determination send to measurement set of cells at least one cooperation cell part or It is whole, including：
If there is one or more unscheduled cells of the dispatching sequence after the serving cell, the serving cell Identified emission value and transmission power are sent to all unscheduled cells；Or
If there is one or more unscheduled cells of the dispatching sequence after the serving cell, the serving cell Identified emission value and transmission power are sent to the unscheduled cell followed by dispatching sequence；Or
If there is no unscheduled cell of the dispatching sequence after the serving cell, the serving cell will be determined Transmission power send to all cooperation cells.
With reference to the 3rd of first aspect the or the 4th or the 5th kind of possible implementation, in the 6th kind of possible implementation In, the descending channel information for determining each user equipment includes：
Corresponding interference noise power matrix is established respectively for each user equipment, and the interference noise power matrix is used for Represent the interference noise power as corresponding to the cell in measurement set of cells is sent to all downstream data flows of user equipment；
According to the scheduling of the interference noise power matrix, the uplink channel information and at least one cooperation cell Information is calculated, and respectively obtains the cell corresponding to each user equipment in transmitting set of cells in each of the serving cell Signal to Interference plus Noise Ratio corresponding to the downstream data flow launched respectively to user equipment on height band, and generate descending channel information.
With reference to the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation, described is every Individual user equipment establishes corresponding interference noise power matrix respectively to be included：
Receive the CQI information that each user equipment is sent；
Calculated, obtained on the virtual downstream data flow of each user equipment feedback by institute according to the CQI information State interference noise power caused by the outer cell of measurement set of cells；
To on the virtual downstream data flow that is fed back in each user equipment, as caused by cell outside the measurement set of cells Interference noise power carries out average value processing, and will obtain the average of interference noise power as all descending in the serving cell Interference noise power in data flow；
According to the interference noise power on all downstream data flows in the serving cell, built respectively for each user equipment Interference noise power matrix corresponding to vertical.
With reference to the 6th kind of possible implementation of first aspect, in the 8th kind of possible implementation, described is every Individual user equipment establishes corresponding interference noise power matrix respectively to be included：
Receive the CQI information that each user equipment is sent；
Calculated, obtained on the virtual downstream data flow of each user equipment feedback by institute according to the CQI information State interference noise power caused by the outer cell of measurement set of cells；
When the virtual downstream data flow of user equipment feedback is identical with the quantity of the downstream data flow in the serving cell When, by each virtual downstream data flow of user equipment feedback as caused by cell outside the measurement set of cells interference noise Power is defined as on each downstream data flow in the serving cell interference as caused by cell outside the measurement set of cells Noise power；
According to being done as caused by cell outside the measurement set of cells on all downstream data flows in the serving cell Noise power is disturbed, corresponding interference noise power matrix is established respectively for each user equipment.
With reference to the 6th kind of possible implementation of first aspect, in the 9th kind of possible implementation, described is every Individual user equipment establishes corresponding interference noise power matrix respectively to be included：
Obtain being done as caused by cell in the measurement set of cells on all downstream data flows in the serving cell Disturb noise power；
According on all downstream data flows in interference proportionality coefficient and the serving cell that gets by the measurement Interference noise power is calculated caused by cell in set of cells, is obtained in the serving cell on all downstream data flows The interference noise power as caused by cell outside the measurement set of cells；
According to being done as caused by cell outside the measurement set of cells on all downstream data flows in the serving cell Noise power is disturbed, corresponding interference noise power matrix is established respectively for each user equipment.
Second aspect, the invention provides a kind of base station, including：
Acquiring unit, the up channel letter of each user equipment in the serving cell of scheduling user's set is treated for obtaining Breath, wherein, the serving cell belongs to measurement set of cells, and the measurement set of cells is also small including at least one cooperation Area；
First determining unit, for the uplink channel information that is obtained according to the acquiring unit and described at least one The schedule information of cooperation cell, it is determined that the Modulation and Coding Scheme MCS needed for scheduling；
Allocation unit, for the MCS determined according to first determining unit, scheduling user's set point is treated to be described With transfer resource.
With reference to second aspect, in the first possible implementation, all minizones in the measurement set of cells With dispatching sequence, and
If at least one cooperation cell includes scheduled cell dispatching sequence before the serving cell, described The schedule information of scheduled cell is included on each subband of the scheduled cell, the transmitting of the last scheduling user's set Weights and transmission power；And/or
If at least one cooperation cell includes unscheduled cell dispatching sequence after the serving cell, described The schedule information of unscheduled cell is included on each subband of the unscheduled cell, the transmitting of the last scheduling user's set Power.
With reference to the first possible implementation of second aspect, or second aspect, in second of possible implementation In, the uplink channel information is that all cells in the measurement set of cells are set to each user in the serving cell The detection reference signal SRS that preparation is penetrated measures what is obtained.
With reference to second aspect, or the first or second of possible implementation of second aspect, it is possible at the third In implementation, first determining unit includes：
First determining module, for the uplink channel information that is obtained according to the acquiring unit and described at least one The schedule information of cooperation cell, determines the descending channel information of each user equipment, each user equipment it is descending Channel information includes the user equipment Signal to Interference plus Noise Ratio on each subband；
Second determining module, for the down channel of each user equipment determined according to first determining module Information, it is determined that on each subband pre-scheduling user equipment；
Merging module, for the first subband in the Signal to Interference plus Noise Ratio in each subband for determining first determining module Signal to Interference plus Noise Ratio merge processing, wherein the user equipment for the pre-scheduling that second determining module determines is waited to dispatch to be described The subband of user equipment is first subband；
The Signal to Interference plus Noise Ratio for handling and obtaining is merged according to the merging module, determines the MCS.
With reference to the third possible implementation of second aspect, in the 4th kind of possible implementation, the base station Also include：
Second determining unit, the user equipment of the pre-scheduling is dispatched for determining the serving cell on each subband Emission value and transmission power；
Transmitting element, for emission value and/or transmission power determined by second determining unit to be sent to survey Measure the part or all of of at least one cooperation cell in set of cells.
With reference to the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation, the transmission Unit is used for when dispatching sequence be present in one or more unscheduled cells after the serving cell, by identified hair Penetrate weights and transmission power is sent to all unscheduled cells；
Or the transmitting element be used for exist dispatching sequence after the serving cell one or more do not adjust When spending cell, identified emission value and transmission power are sent to the unscheduled cell followed by dispatching sequence；
Or the transmitting element is used in the unscheduled cell in the absence of dispatching sequence after the serving cell When, identified transmission power is sent to all cooperation cells.
With reference to the 3rd of second aspect the or the 4th or the 5th kind of possible implementation, in the 6th kind of possible implementation In, first determining module includes：
Matrix setting up submodule, it is described for establishing corresponding interference noise power matrix respectively for each user equipment Interference noise power matrix is used to represent all downstream data flows for being sent to user equipment by the cell in measurement set of cells Corresponding interference noise power；
Calculating sub module, for the interference noise power matrix, described established according to the matrix setting up submodule Uplink channel information and the schedule information of at least one cooperation cell are calculated, and it is corresponding to respectively obtain each user equipment Transmitting set of cells in cell on each subband of the serving cell respectively to user equipment launch downlink data Signal to Interference plus Noise Ratio corresponding to stream, and generate descending channel information.
With reference to the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation, the matrix Setting up submodule is used to receive the CQI information that each user equipment is sent；Calculated, obtained according to the CQI information As interference noise work(caused by cell outside the measurement set of cells on the virtual downstream data flow of each user equipment feedback Rate；To on the virtual downstream data flow that is fed back in each user equipment, the interference as caused by cell outside the measurement set of cells Noise power carries out average value processing, and will obtain the average of interference noise power as all downlink datas in the serving cell Interference noise power on stream；According to the interference noise power on all downstream data flows in the serving cell, used to be each Family equipment establishes corresponding interference noise power matrix respectively.
With reference to the 6th kind of possible implementation of second aspect, in the 8th kind of possible implementation, the matrix Setting up submodule is used to receive the CQI information that each user equipment is sent；Calculated, obtained according to the CQI information As interference noise work(caused by cell outside the measurement set of cells on the virtual downstream data flow of each user equipment feedback Rate；, will when the virtual downstream data flow of user equipment feedback is identical with the quantity of the downstream data flow in the serving cell On each virtual downstream data flow of user equipment feedback as caused by cell outside the measurement set of cells interference noise power It is defined as on each downstream data flow in the serving cell interference noise as caused by cell outside the measurement set of cells Power；Made an uproar according to being disturbed as caused by cell outside the measurement set of cells on all downstream data flows in the serving cell Acoustical power, corresponding interference noise power matrix is established respectively for each user equipment.
With reference to the 6th kind of possible implementation of second aspect, in the 9th kind of possible implementation, the matrix Setting up submodule is used to obtain in the serving cell being produced by cell in the measurement set of cells on all downstream data flows Raw interference noise power；According on all downstream data flows in interference proportionality coefficient and the serving cell that gets by Interference noise power caused by cell is calculated in the measurement set of cells, obtains all lower line numbers in the serving cell According on stream as interference noise power caused by cell outside the measurement set of cells；According to all descending in the serving cell In data flow as interference noise power caused by cell outside the measurement set of cells, established respectively pair for each user equipment The interference noise power matrix answered.
In a kind of method of scheduling user's set provided in an embodiment of the present invention and base station, by using the up letter Road information and the schedule information of at least one cooperation cell, to determine the descending channel information of each user equipment, Base station side is allowd both to consider other cells in measurement set of cells to being disturbed caused by the down channel of serving cell, The channel estimation that is carried out according to uplink channel information to down channel of base station side itself can be combined again, can improve base station to The accuracy of family equipment scheduling, the down channel estimated information that is only reported by user equipment side is avoided to determine that MCS may go out Existing mistake.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the method flow diagram for the scheduling user's set that a prior art related to the present invention provides；
Fig. 2 is a kind of method flow diagram of scheduling user's set provided in an embodiment of the present invention；
Fig. 3 is the method flow diagram of another scheduling user's set provided in an embodiment of the present invention；
Fig. 4 is the method flow diagram of another scheduling user's set provided in an embodiment of the present invention；
Fig. 5 is the method flow diagram of another scheduling user's set provided in an embodiment of the present invention；
Fig. 6 is the method flow diagram of another scheduling user's set provided in an embodiment of the present invention；
Fig. 7 is the method flow diagram of another scheduling user's set provided in an embodiment of the present invention；
Fig. 8 is the method flow diagram of another scheduling user's set provided in an embodiment of the present invention；
Fig. 9 is the method flow diagram of another scheduling user's set provided in an embodiment of the present invention；
Figure 10 is a kind of composition frame chart of base station provided in an embodiment of the present invention；
Figure 11 is the composition frame chart of another base station provided in an embodiment of the present invention；
Figure 12 is the composition frame chart of another base station provided in an embodiment of the present invention；
Figure 13 is the composition frame chart of another base station provided in an embodiment of the present invention；
Figure 14 is the composition frame chart of another base station provided in an embodiment of the present invention；
Figure 15 is the composition frame chart of another base station provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
Measurement set of cells involved in following examples is explained first and launches the implication of set of cells.Measurement The SRS that cell in set of cells can launch user equipment is received and handled, and can interact metrical information.Under Assume to treat that the measurement set of cells of scheduling user's set includes M cell in text, collection is combined into μM, measure the cell in set of cells Numbering is m=1,2 ..., M.
Measure the maintenance of set of cells：The method that fixed allocation can be used, for example, treating that the service of scheduling user's set is small Several cells composition measurement cell set on area periphery；It can also believe according to the reference for each cell for treating scheduling user's set feedback Number receiving power (Reference Signal Receiving Power, RSRP), according to | RSRP1-RSRPj| ＜ Thr are selected M measurement collection cell, wherein RSRP1It is the RSRP of serving cell, RSRPjIt is the RSRP of other cells, Thr is thresholding.Certainly, The maintaining method of other measurement set of cells can also be used, is not enumerated here.
The implication of transmitting set of cells is explained again：Cell in transmitting set of cells is to treat that scheduling user's set is combined Launch downlink data, and it is inevitable in set of cells is measured to launch the cell in set of cells.The method for combining transmitting is more, and one As be divided into coherent transmitting and the major class of noncoherent transmission two.Coherent transmitting needs to launch the cell interactive channel information in set of cells To calculate emission value；Noncoherent transmission only needs each cell individually to calculate emission value.Hereinafter assume target UE transmitting Set of cells is T cell (T≤M), and transmitting set of cells is μT。
Fig. 1 is refer to, it is a kind of schematic diagram of existing scheduling user's set method.As shown in figure 1, in existing dispatching party In method, each independently it is scheduled between each cell, using the base station where cell 1 as executive agent, its specific scheduling process It is as follows：
101：According to Modulation and Coding Scheme (modulation coding corresponding to the CQI calculating that user equipment feeds back Scheme, MCS), to adapt to the channel circumstance of Radio Link.
102：For user equipment allocation of transmission resources；, can be according to the MCS and historic transmission of user equipment when distribution Gait synthesis determines the transfer resource of user equipment, such as can also use poll with adoption rate fair algorithm (PF) (RR) algorithm carrys out the transfer resource of distributing user equipment.
103：Launch data on the assigned resource for user equipment；, can basis after distributing resource for user equipment MCS determines transport block size (TBS), then according to the transport block size of determination, launches data for user equipment, wherein, transmission Block size is to ensure the data volume that customer equipment data can transmit in the case of certain error rate.
Also include cell 2 in Fig. 1 to cell N process step, the process step of each cell with the phase of cell 1 Together, will not be repeated here.
As described in the background section, because the CQI of current user equipment feedback can not accurately embody down channel Fine or not situation, therefore existing dispatching method can not accurately calculate transport block size.When transmission block is too small, although error rate Reduce, but waste transfer resource；When transmission block is excessive, error rate lifting is will result in, efficiency of transmission reduces.Therefore can be right Systematic function brings certain loss.
Further, since each cell is independently scheduled, it is impossible to disturbed condition during this scheduled transmission data is obtained, because This cannot relatively accurately calculate Signal to Interference plus Noise Ratio (the Signal to of this scheduling user's set Interference plus Noise Ratio, SINR, hereinafter referred to as Signal to Interference plus Noise Ratio), may be inaccurate so as to MCS calculating, And then influence the accuracy of scheduling.
In view of above technical problem, the embodiment of the present invention provides a kind of method of scheduling user's set, measures cell set Each cell in conjunction is scheduled according to certain order, and each cell determines the user equipment and tune dispatched on its subband Spend after information, schedule information is shared into other cells, so that the cell followed by scheduling more accurately determines transmitting Disturbed condition during data, and then MCS is determined, improve the accuracy of scheduling.
Specifically, Fig. 2 is refer to, it is a kind of schematic diagram of scheduling user's set method provided in an embodiment of the present invention. In the embodiment, measurement set of cells includes cell 1 to cell N, and its dispatching sequence is from cell 1 to cell N, is dispatched successively, It is to be referred to as to complete measurement set of cells one wheel scheduling that all cells, which complete scheduling,.As shown in Fig. 2 with the base where cell 1 Stand for executive agent, its scheduling process it is as follows：
201：According to the uplink channel information of each user equipment in the cell 1 being currently scheduled and measurement cell set The last schedule information being scheduled of other cells (other cells i.e. in addition to the cell being currently scheduled) in conjunction, really MCS needed for degree of setting the tone.
Wherein, the last schedule information being scheduled is to be used in upper wheel scheduling corresponding to cell 2 to cell N Schedule information.
Wherein, the uplink channel information can be up channel matrix, can be obtained by SRS channel estimation.Example Such as, all cells measured in set of cells are carried out to the SRS that each user equipment in the cell that is currently scheduled is launched Measurement, obtains the uplink channel information of each user equipment.
202：Schedule information is sent to other cells in measurement set of cells.
It should be noted that the present embodiment does not limit sending method, can be the mode of delivering, such as cell 1 will scheduling Information is sent to cell 2, and the schedule information of cell 1 and cell 2 is sent to cell 3 by cell 2, is carried out successively, until cell N-1 Cell 1 to cell N-1 schedule information is sent to cell N, and cell N completes the schedule information of whole cells to be sent out after scheduling See off, dispatch and use for next round.Can also be in the scheduling of each wheel measurement set of cells, each completion is dispatched small Schedule information is sent to the cell for not completing scheduling by area, such as schedule information is sent to cell 2 to cell N, cell by cell 1 Schedule information is sent to cell 3 to cell N by 2, and last cell N completes to send schedule information after scheduling, and its is medium and small Area 2 can also dispatch for next round to the schedule information that cell N is sent and use.It is, of course, also possible to using other manner, such as often Schedule information is delivered every one, any restrictions are not done in this implementation.
Method flow as shown in Figure 2 includes a kind of embodiment in above-mentioned delivering mode.
203：According to the MCS of determination, for the user equipment allocation of transmission resources of its scheduling.
204：Launch data on the assigned resource for user equipment.
It should be noted that the order between above step 202 and step 203 or 204 does not do any restrictions, can be simultaneously Carry out, can also carry out, can also be run between step 203 and 204, the present embodiment is not appointed after step 203 or 204 What is limited.
Referring to Fig. 2, in each scheduling, cell 1 to cell N repeats above step, completes each to the tune of user equipment Degree.Wherein, in step 201, needed for schedule information determination scheduling of the cell 1 in wheel scheduling in cell 2 to cell N MCS；Cell 2 is according to the uplink channel information of each user equipment in it, the schedule information in the scheduling of the epicycle of cell 1, Yi Ji little Schedule information in area 3 to wheel scheduling on cell N determines the MCS needed for scheduling；The like, cell N is according to cell 1 to cell Schedule information in the scheduling of N-1 epicycles determines the MCS needed for scheduling.
It should be noted that cell 1 can be arranged according to predefined order or rule to cell N dispatching sequence Sequence, such as every time in a fixed order, or every time according to order of poll etc..
Above example considers influence of other cells to the down channel of serving cell, and it is right to combine base station side itself The estimation of down channel, accuracy of the base station to dispatching user facility can be improved, avoids what is only reported by user equipment side Down channel estimated information determines mistake that MCS is likely to occur.
Please continue to refer to Fig. 3, it is a kind of flow chart of the method for scheduling user's set provided in an embodiment of the present invention, such as Shown in Fig. 3, it can be realized by the base station side in LTE-TDD system group network frameworks, this method includes：
301st, the uplink channel information for treating each user equipment in the serving cell of scheduling user's set is obtained.
Wherein, the serving cell belongs to measurement set of cells, and the measurement set of cells also includes at least one association Make cell.
The embodiment of the step is the base station control all cells measured in set of cells to the service The SRS of each user equipment transmitting in cell is measured, and obtains the uplink channel information of each user equipment.
Wherein, it is described to measure the set that set of cells is multiple cells composition including the serving cell, this hair μ is used in bright embodimentMIt is identified.The mode of foundation can be the method using fixed allocation, i.e., described serving cell periphery Several cells composition measurement set of cells or according to it is described treat scheduling user's set feedback each cell RSRP (Reference Signal Receiving Power, Reference Signal Received Power), according to | RSRP1-RSRPj| ＜ Thr are selected Go out M measurement collection cell, wherein RSRP1It is the RSRP of the serving cell, RSRPjIt is the RSRP of other cells, Thr is default Threshold value.Here the embodiment of the present invention provide only two kinds of possible implementations, and mode can also be established using others Measurement set of cells is established, the embodiment of the present invention is not limited to this.Also, for small in same measurement set of cells Area, base station accordingly Allotment Serial Number or label can be all identified.Wherein, cooperation cell is assistance services in measurement set of cells Cell carries out channel measurement, and the cell that can interact metrical information and serving cell.
What deserves to be explained is, for belonging to for the cell in same measurement set of cells, base station is sequentially completed herein After being scheduled to all cells in the measurement set of cells, just it can be assumed that for base station in the measurement set of cells All cells complete a wheel dispatching user facility processing, the hereinafter referred to as dispatch deal to measuring set of cells.Therefore, for surveying It is can have scheduled cell and unscheduled in same measurement set of cells for the same wheel dispatch deal for measuring set of cells Cell.In a measurement set of cells for the user equipment of the cell serves in measurement set of cells, Mei Geyong Family equipment both corresponds to a transmitting set of cells, uses μTTo be identified, it is same to launch the cell in set of cells User equipment joint transmitting downlink data, and it is inevitable in set of cells is measured to launch the cell in set of cells.
302nd, according to the uplink channel information and the schedule information of at least one cooperation cell, it is determined that needed for scheduling Modulation and Coding Scheme (MCS).
Wherein, it can be seen from the associated description of step 301, all minizones in the measurement set of cells have scheduling Sequentially, and if at least one cooperation cell include scheduled cell dispatching sequence before the serving cell, this is Dispatching the schedule information of cell is included on each subband of the scheduled cell, the Launch Right of the last scheduling user's set Value and transmission power；If the cooperation cell includes unscheduled cell dispatching sequence after the serving cell, this is not Dispatching the schedule information of cell is included on each subband of the unscheduled cell, the transmitting work(of the last scheduling user's set Rate.
303rd, according to the MCS, to treat scheduling user's set allocation of transmission resources.
In a kind of method of scheduling user's set provided in an embodiment of the present invention, base station is set by obtaining user to be dispatched The uplink channel information of standby place serving cell, and the schedule information of other cells in current measurement set of cells is combined, To calculate MCS, scheduling user's set allocation of downlink transfer resource is then treated to be described based on MCS again.Compared in the prior art, The transmission means of base station side actual use downlink data can be different from the transmission means that user equipment is assumed, and cause base station side meeting This problem of wrong estimation is carried out to down channel according to the CQI of inaccuracy, the present invention passes through such process step so that Base station side can again may be used both in view of other cells in measurement set of cells to interference caused by the down channel of serving cell With the channel estimation carried out with reference to base station side itself according to uplink channel information to down channel, base station can be improved user is set The accuracy of standby scheduling.
Further, as shown in figure 4, the embodiments of the invention provide a kind of specific implementation of above-mentioned steps 302, bag Include：
3021st, according to the uplink channel information and the schedule information of at least one cooperation cell, determine described every The descending channel information of individual user equipment, the descending channel information of each user equipment include the user equipment in each height The Signal to Interference plus Noise Ratio taken.
Wherein, the associated description of the schedule information of at least one cooperation cell and the associated description phase in step 302 Together.
3022nd, according to the descending channel information of each user equipment, it is determined that the pre-scheduling on each subband User equipment.
3023rd, the Signal to Interference plus Noise Ratio on the first subband is merged into processing, wherein on first subband pre-scheduling use Family equipment treats scheduling user's set to be described.That is, son scheduling user's set will be treated described in the serving cell pre-scheduling used The Signal to Interference plus Noise Ratio taken merges processing.
3024th, according to the Signal to Interference plus Noise Ratio after merging, the MCS is determined.
In the present embodiment, believed by using the scheduling of the uplink channel information and at least one cooperation cell Breath, to determine the descending channel information of each user equipment, and then it will treat that scheduling is used described in the serving cell pre-scheduling The Signal to Interference plus Noise Ratio on subband that family equipment uses merges processing, to according to the Signal to Interference plus Noise Ratio after merging, it is determined that described MCS so that base station side can be both in view of other cells in measurement set of cells to caused by the down channel of serving cell Interference, the channel estimation that base station side itself is carried out according to uplink channel information to down channel can be combined again, can improve base The accuracy stood to dispatching user facility, the down channel estimated information that is only reported by user equipment side is avoided to determine MCS The mistake being likely to occur.
Further, after above-mentioned steps 3022 are completed, as shown in figure 5, the method for above-mentioned scheduling user's set is also wrapped Include：
3025th, determine the serving cell dispatched on each subband the emission value of the user equipment of the pre-scheduling with And transmission power.
3026th, by identified emission value and/or transmission power send to measurement set of cells in described at least one Individual cooperation cell it is part or all of.
In this way, dispatching sequence can be supplied to exist the schedule information (including emission value and transmission power) of serving cell Cooperation cell behind, to ensure the correct scheduling of cooperation cell；Furthermore it is also possible to provide transmit power to next round tune Cooperation cell of the dispatching sequence before serving cell in degree, to ensure the correct scheduling of cooperation cell.It is of course also possible to adopt Otherwise, for example, schedule information is temporarily stored into base station, when cooperation cell is scheduled, from serving cell ask with Schedule information needed for obtaining.
Specifically, the embodiment of the present invention provides following three kinds of implementations for the specific implementation of above-mentioned steps 3026, tool Body includes：
The first implementation：It is one or more unscheduled small after the serving cell if there is dispatching sequence Area, the serving cell send identified emission value and transmission power to all unscheduled cells.
Second of implementation：It is one or more unscheduled small after the serving cell if there is dispatching sequence Area, the serving cell send identified emission value and transmission power to unscheduled small followed by dispatching sequence Area.
The third implementation：It is described if there is no unscheduled cell of the dispatching sequence after the serving cell Serving cell sends identified transmission power to all cooperation cells.
In second of implementation, because the serving cell only sends out identified emission value and transmission power The unscheduled cell followed by dispatching sequence is delivered to, then is needed after the unscheduled cell after its completion scheduling, by it Emission value and transmission power determined by itself, and the emission value of the serving cell and transmission power are sent to it Unscheduled cell afterwards；Or the emission value and transmission power of the serving cell required for other unscheduled cells can be with Actively made requests on during dispatching user facility is each carried out to the serving cell.
In the third implementation, with reference to the associated description of above-mentioned steps 302, technical side provided in an embodiment of the present invention Case can be on each subband according to scheduled cell, the emission value and transmission power of the last scheduling user's set And/or on each subband of unscheduled cell, the transmission power of the last scheduling user's set, therefore in the third realization During mode, the serving cell only can also send the transmission power determined to all cooperation cells.
Further, the embodiment of the present invention there is provided herein the specific implementation of the step 3021, as shown in fig. 6, Including：
401st, corresponding interference noise power matrix is established respectively for each user equipment.
Wherein, the interference noise power matrix is used to represent to be sent to user equipment by the cell in measurement set of cells All downstream data flows corresponding to interference noise power.Its expression-form can be
Wherein,For in subband sb downstream data flow stxOn made an uproar by the caused interference in measurement set of cells Acoustical power.
402nd, according to the interference noise power matrix, the uplink channel information and at least one cooperation cell Schedule information, respectively obtain each height of the cell corresponding to each user equipment in transmitting set of cells in the serving cell Signal to Interference plus Noise Ratio corresponding to the downstream data flow launched respectively to user equipment is taken, and generates descending channel information.
Each subband of the cell in the transmitting set of cells in the serving cell is being calculated respectively to each user Corresponding to the downstream data flow of equipment transmitting during Signal to Interference plus Noise Ratio, technical scheme provided in an embodiment of the present invention is arranged to successively to every Individual user equipment calculates respectively.
It is directed to for a user equipment, the embodiment of the present invention can be provided based on MRC (Max Ratio Combine) equalization algorithm and the computational methods based on IRC (Interference Repress Combine) equalization algorithm.
For MRC equalization algorithms, the cell in the transmitting set of cells is calculated in each of the serving cell Subband to Signal to Interference plus Noise Ratio corresponding to the downstream data flow of a special user equipment transmitting, can refer to below equation respectively：
Wherein,
WhereinFor unscheduled cell m it is previous by during base station scheduling in subband sb transmission power, TM, numTo be unscheduled Cell m transmitting antenna number.It is that cell m takes the emission value matrix on subband sb in the special user equipment.W1 sb StxIt is classified asRepresent cell 1 in downstream data flow ss of the subband sb to transmittingtxEmission value vector.
For IRC equalization algorithms, the serving cell is calculated in each subband of the serving cell respectively to one Signal to Interference plus Noise Ratio corresponding to the downstream data flow of individual special user equipment transmitting, can refer to below equation：
Wherein,For α stxIndividual diagonal entry.
Further what deserves to be explained is, the embodiment of the present invention there is provided herein several specific implementation sides of the step 401 Formula, as shown in Fig. 7,8,9.
Method as shown in Figure 7 includes：
A4011, receive the CQI information that each user equipment is sent.
Wherein, the CQI information is that user equipment is surveyed to the down channel of each cell in measurement set of cells After amount, it is assumed that a kind of transmission means that base station side may use, and base station side is determined according to the transmission means of this hypothesis The virtual downstream data flow that may be used, and calculate corresponding CQI information.Circular is known in the art technology, this Inventive embodiments will not be repeated here.
A4012, calculated according to the CQI information, obtain the virtual downstream data flow in each user equipment feedback On as interference noise power caused by cell outside the measurement set of cells.
What deserves to be explained is due in the different editions of LTE standard, vacation that CQI information that user equipment is sent is based on If different, therefore, the embodiment of the present invention each provides the method for calculating interference noise information by CQI accordingly herein.Also, In subsequent embodiment, correspond to stream S by what user equipment was sentfbCQI be designated as
WhenIt is the noise that the down-bound pilot frequency signal of a cell calculates with the total interference noise power of other cells During than obtaining, then on this condition, when user equipment is fed back in a manner of transmitting diversityWhen, now Sfb=1, user The interference noise power as caused by cell outside the measurement set of cells can refer to one on the virtual downstream data flow of equipment feedback Lower formula：
Wherein,It is cell c CRS VAM (Virtual Antenna Mapping) matrix.It is basisMapping obtains virtual downstream data flow sfbSignal to noise ratio on sb.TC, numIt is base station c number of transmission antennas. It is that cell m takes the emission value matrix on subband sb in target UE.It is that cell m is treating scheduling user's set occupancy subband Last time transmission power on sb.
When treating that scheduling user's set feeds back in the closed loop modeWhen, now Sfb>=1, user equipment feeds back virtual The interference noise power as caused by cell outside the measurement set of cells can refer to formula on downstream data flow：
Wherein,It is the virtual downstream data flow s that user equipment feeds back to cell cfbPMI on sb (Precoding Matrix Index) precoding vector.
WhenIt is the signal to noise ratio that the down-bound pilot frequency signal of a cell calculates with the interference noise power outside measurement collection When obtaining, then on this condition, when user equipment is fed back in a manner of transmitting diversityWhen, now Sfb=1, Yong Hushe The interference noise power as caused by cell outside the measurement set of cells can refer on the virtual downstream data flow of standby feedback Formula：
When user equipment is fed back with TM8 closed loop modesWhen, now Sfb>=1, user equipment feeds back virtual descending The interference noise power as caused by cell outside the measurement set of cells can refer to formula in data flow：
WhereinIt is the stream s that user equipment feeds back to cell cfbPMI (Precoding Matrix on sb Index) precoding vector.
When user equipment is fed back with TM9 closed loop modesWhen, now Sfb>=1, user equipment feeds back virtual descending The interference noise power as caused by cell outside the measurement set of cells can refer to formula in data flow：
Wherein,It is mesh cell c CSI-RS VAM matrixes, typically
A4013, on the virtual downstream data flow that is fed back in each user equipment, by cell outside the measurement set of cells Caused interference noise power carries out average value processing, and will obtain the average of interference noise power as institute in the serving cell There is the interference noise power on downstream data flow.
The embodiment of the present invention provides a kind of computational methods herein, with reference to below equation：
Wherein, sfbTo treat the virtual downstream data flow of scheduling user's set feedback.
A4014, according to the interference noise power on all downstream data flows in the serving cell, be each user equipment Interference noise power matrix corresponding to establishing respectively.
Method as shown in Figure 8 includes：
B4011, receive the CQI information that each user equipment is sent.
B4012, calculated according to the CQI information, obtain the virtual downstream data flow in each user equipment feedback On as interference noise power caused by cell outside the measurement set of cells.
Step B4012 implementation method can refer to A4012 specific descriptions.
B4013, the number when the downstream data flow in the virtual downstream data flow and the serving cell of user equipment feedback When measuring identical, it will be done on each virtual downstream data flow of user equipment feedback as caused by cell outside the measurement set of cells Noise power is disturbed to be defined as on each downstream data flow in the serving cell being produced by cell outside the measurement set of cells Interference noise power.
The step for corresponding expression formula be
B4014, according on all downstream data flows in the serving cell by it is described measurement set of cells outside cell produce Raw interference noise power, corresponding interference noise power matrix is established respectively for each user equipment.
Made an uproar what deserves to be explained is method flow as shown in Figure 7 and Figure 8 is construction interference provided in an embodiment of the present invention Two kinds of preferred embodiments of acoustical power matrix.Whether using as shown in Figure 7 and Figure 8 method flow can according to be actually needed into Row judges.Taken for example, house can be carried out according to product implementation complexity；It can also be judged according to the size of measurement set of cells, If (M ＞ MThr) ＆ (M-T ＞ IThr) need not then calculate, it is on the contrary then calculate, the optional M of in generalThr=3, IThr=2.Wherein, M is It is the line number in the case where being sent in measuring set of cells to a specific user equipment joint to measure the number of cells T in set of cells According to number of cells.
If the CQI for needing not refer to user equipment feedback is calculated, will directly can divide for each user equipment Not Jian Li corresponding to interference noise power arranged in matrix be 0 matrix.
Method as shown in Figure 9 includes：
C4011, obtain being produced by cell in the measurement set of cells on all downstream data flows in the serving cell Raw interference noise power.
C4012, according on all downstream data flows in interference proportionality coefficient and the serving cell that gets by institute State interference noise power caused by cell in measurement set of cells to be calculated, obtain all downlink datas in the serving cell The interference noise power as caused by cell outside the measurement set of cells on stream.
C4012 specific implementation can pass throughTo realize, whereinFor the interference in measurement collection Power matrix, i.e.,β represents that measurement collection is outer for interference proportionality coefficient The ratio of interference and interference in measurement collection, typically a constant.
C4013, according on all downstream data flows in the serving cell by it is described measurement set of cells outside cell produce Raw interference noise power, corresponding interference noise power matrix is established respectively for each user equipment.
Method flow as shown in Figure 7, Figure 8 and Figure 9 provided in an embodiment of the present invention so that base station side is waited to adjust to be described When spending user equipment allocation of downlink transfer resource, also it is contemplated that user equipment is estimated the quality of down channel, further Ground provides accuracy.
Another embodiment of the present invention provides a kind of base station, the method that all base station sides as shown in Fig. 2 to Fig. 9 can be achieved Flow.
As shown in Figure 10, the base station includes：
Acquiring unit 51, the up channel letter of each user equipment in the serving cell of scheduling user's set is treated for obtaining Breath, wherein, the serving cell belongs to measurement set of cells, and the measurement set of cells is also small including at least one cooperation Area.
First determining unit 52, for the uplink channel information that is obtained according to the acquiring unit 51 and it is described at least The schedule information of one cooperation cell, it is determined that the Modulation and Coding Scheme MCS needed for scheduling.
Allocation unit 53, for the MCS determined according to first determining unit 52, set for the user to be dispatched Standby allocation of transmission resources.
Wherein, all minizones in the measurement set of cells have dispatching sequence, and
If at least one cooperation cell includes scheduled cell dispatching sequence before the serving cell, described The schedule information of scheduled cell is included on each subband of the scheduled cell, the transmitting of the last scheduling user's set Weights and transmission power；And/or
If at least one cooperation cell includes unscheduled cell dispatching sequence after the serving cell, described The schedule information of unscheduled cell is included on each subband of the unscheduled cell, the transmitting of the last scheduling user's set Power.
Optionally, the acquiring unit 51 is used to control all cells in the measurement set of cells to the service The detection reference signal SRS of each user equipment transmitting in cell is measured, and obtains the up channel of each user equipment Information.
Optionally, as shown in figure 11, first determining unit 52 includes：
First determining module 521, for the uplink channel information that is obtained according to the acquiring unit 51 and it is described extremely The schedule information of a few cooperation cell, determine the descending channel information of each user equipment, each user equipment Descending channel information include the user equipment Signal to Interference plus Noise Ratio on each subband；
Second determining module 522, under each user equipment for being determined according to first determining module 521 Row channel information, it is determined that on each subband pre-scheduling user equipment.
Merging module 523, for the first son in the Signal to Interference plus Noise Ratio in each subband of first determining module 521 determination The Signal to Interference plus Noise Ratio taken merges processing, wherein the user equipment for the pre-scheduling that second determining module 522 determines is institute State and treat that the subband of scheduling user's set is first subband；
3rd determining module 524, obtained Signal to Interference plus Noise Ratio is handled for being merged according to the merging module 523, really The fixed MCS.
Optionally, as shown in figure 12, the base station also includes：
Second determining unit 54, the user that the pre-scheduling is dispatched for determining the serving cell on each subband set Standby emission value and transmission power.
Transmitting element 55, for emission value determined by second determining unit 54 and/or transmission power to be sent To measurement set of cells at least one cooperation cell it is part or all of.
Optionally, the transmitting element 55 is used for one or more of dispatching sequence after the serving cell being present During individual unscheduled cell, identified emission value and transmission power are sent to all unscheduled cells.
Or the transmitting element 55 is used for one or more of the dispatching sequence after the serving cell being present not When dispatching cell, identified emission value and transmission power are sent to the unscheduled cell followed by dispatching sequence.
Or the transmitting element 55 is used in the unscheduled cell in the absence of dispatching sequence after the serving cell When, identified transmission power is sent to all cooperation cells.
Optionally, as shown in figure 13, first determining module 521 includes：
Matrix setting up submodule 5211, for establishing corresponding interference noise power matrix respectively for each user equipment, The interference noise power matrix is used to represent all lower line numbers for being sent to user equipment by the cell in measurement set of cells According to interference noise power corresponding to stream.
Calculating sub module 5212, for the interference noise power square established according to the matrix setting up submodule 5211 Battle array, the uplink channel information and the schedule information of at least one cooperation cell are calculated, and respectively obtain each user What the cell corresponding to equipment in transmitting set of cells was launched to user equipment respectively on each subband of the serving cell Signal to Interference plus Noise Ratio corresponding to downstream data flow, and generate descending channel information.
Optionally, the matrix setting up submodule 5211 is used to receive the CQI information that each user equipment is sent； Calculated, obtained small by the measurement on the virtual downstream data flow of each user equipment feedback according to the CQI information Gather interference noise power caused by outer cell in area；To on the virtual downstream data flow that is fed back in each user equipment, by described Interference noise power caused by measuring the outer cell of set of cells carries out average value processing, and the average for obtaining interference noise power is made For the interference noise power on all downstream data flows in the serving cell；According to all downlink datas in the serving cell Interference noise power on stream, corresponding interference noise power matrix is established respectively for each user equipment.
Optionally, the matrix setting up submodule 5211 is used to receive the CQI information that each user equipment is sent； Calculated, obtained small by the measurement on the virtual downstream data flow of each user equipment feedback according to the CQI information Gather interference noise power caused by outer cell in area；When in the virtual downstream data flow and the serving cell of user equipment feedback Downstream data flow quantity it is identical when, by each virtual downstream data flow of user equipment feedback by the measurement cell set Interference noise power caused by closing outer cell is defined as on each downstream data flow in the serving cell small by the measurement Gather interference noise power caused by outer cell in area；According on all downstream data flows in the serving cell by the measurement Interference noise power caused by the outer cell of set of cells, corresponding interference noise power square is established respectively for each user equipment Battle array.
Optionally, the matrix setting up submodule 5211 is used to obtain all downstream data flows in the serving cell As interference noise power caused by cell in the measurement set of cells；According to interference proportionality coefficient and the clothes got The interference noise power as caused by cell in the measurement set of cells in business cell on all downstream data flows is calculated, Obtain the interference noise work(as caused by cell outside the measurement set of cells on all downstream data flows in the serving cell Rate；According to the interference noise as caused by cell outside the measurement set of cells in the serving cell on all downstream data flows Power, corresponding interference noise power matrix is established respectively for each user equipment.
In a kind of base station provided in an embodiment of the present invention, treated by obtaining scheduling user's set place serving cell it is upper Row channel information, and the schedule information of other cells in current measurement set of cells is combined, to calculate MCS, then it is based on again MCS treats scheduling user's set allocation of downlink transfer resource to be described.Compared in the prior art, base station side actually uses lower line number According to transmission means can be different from the transmission means that user equipment is assumed, and cause base station side can be according to inaccurate CQI under Row channel carries out this problem of wrong estimation, and the present invention can both consider other by such process step, base station side Influence of the cell to serving cell, base station side itself can be combined again and is estimated, can improve standard of the base station to dispatching user facility True property.
The embodiment of the present invention additionally provides a kind of base station, as shown in figure 14, including at least one central processing unit 61 and deposits Reservoir 62, the memory 62 are configured with code, and the central processing unit 61 can read the code stored in memory 62 and use To realize the method flow as shown in Fig. 2 to Fig. 9.The central processing unit 61 and the memory 62 are led to by bus Letter.
Wherein, the central processing unit 61, which is used to obtain, treats each user equipment in the serving cell of scheduling user's set Uplink channel information, wherein, the serving cell belongs to measurement set of cells, and the measurement set of cells also includes at least one Individual cooperation cell；According to the uplink channel information and the schedule information of at least one cooperation cell, it is determined that needed for scheduling Modulation and Coding Scheme MCS；According to the MCS, scheduling user's set allocation of transmission resources is treated to be described.
The memory 62 is additionally operable to store uplink channel information, the schedule information of at least one cooperation cell, modulation volume Code scheme MCS, it is the transfer resource for treating scheduling user's set distribution.
Wherein, all minizones in the measurement set of cells have dispatching sequence, and
If at least one cooperation cell includes scheduled cell dispatching sequence before the serving cell, described The schedule information of scheduled cell is included on each subband of the scheduled cell, the transmitting of the last scheduling user's set Weights and transmission power；And/or
If at least one cooperation cell includes unscheduled cell dispatching sequence after the serving cell, described The schedule information of unscheduled cell is included on each subband of the unscheduled cell, the transmitting of the last scheduling user's set Power.
Optionally, the uplink channel information is all cells measured in set of cells to the serving cell The detection reference signal SRS of interior each user equipment transmitting measures what is obtained.
Optionally, the central processing unit 61 is specifically used for according to the uplink channel information and at least one association Make the schedule information of cell, determine the descending channel information of each user equipment, the descending letter of each user equipment Road information includes the user equipment Signal to Interference plus Noise Ratio on each subband；Believed according to the down channel of each user equipment Breath, it is determined that on each subband pre-scheduling user equipment；Signal to Interference plus Noise Ratio on first subband is merged into processing, its Described in the user equipment of pre-scheduling on the first subband treat scheduling user's set to be described；According to the Signal to Interference plus Noise Ratio after merging, Determine the MCS.
The memory 61 is additionally operable to be stored in the user equipment of pre-scheduling on each subband.
Optionally, as shown in figure 15, the base station also includes emitter 63.
The central processing unit 61 is specifically used for determining that the serving cell dispatches the pre-scheduling on each subband The emission value and transmission power of user equipment.
The emitter 63, for identified emission value and/or transmission power to be sent to measurement set of cells At least one cooperation cell it is part or all of.
Optionally, the emitter 63 be specifically used for exist dispatching sequence one after the serving cell or During multiple unscheduled cells, identified emission value and transmission power are sent to all unscheduled cells；
And be used for, will when dispatching sequence be present in one or more unscheduled cells after the serving cell Identified emission value and transmission power are sent to the unscheduled cell followed by dispatching sequence；
And be used for, when in the absence of dispatching sequence in the unscheduled cell after the serving cell, by determined by Transmission power is sent to all cooperation cells.
The memory 61 is additionally operable to identified emission value and transmission power.
Optionally, the central processing unit 61 is additionally operable to establish corresponding interference noise work(respectively for each user equipment Rate matrix, the interference noise power matrix are used to represent to be sent to all of user equipment by the cell in measurement set of cells Interference noise power corresponding to downstream data flow；According to the interference noise power matrix, the uplink channel information and described The schedule information of at least one cooperation cell is calculated, and is respectively obtained corresponding to each user equipment in transmitting set of cells Signal to Interference plus Noise Ratio corresponding to the downstream data flow that cell is launched to user equipment respectively on each subband of the serving cell, and Generate descending channel information.
The memory 61, it is additionally operable to store interference noise power matrix.
Optionally, the central processing unit 61 is specifically used for receiving the CQI information that each user equipment is sent；Root Calculated, obtained on the virtual downstream data flow of each user equipment feedback by the measurement cell according to the CQI information Interference noise power caused by the outer cell of set；To on the virtual downstream data flow that is fed back in each user equipment, by the survey Interference noise power caused by measuring the outer cell of set of cells carries out average value processing, and will obtain the average of interference noise power as Interference noise power in the serving cell on all downstream data flows；According to all downstream data flows in the serving cell On interference noise power, for each user equipment establish respectively corresponding to interference noise power matrix.
Optionally, the central processing unit 61 is specifically used for receiving the CQI information that each user equipment is sent；
Calculated, obtained on the virtual downstream data flow of each user equipment feedback by institute according to the CQI information State interference noise power caused by the outer cell of measurement set of cells；Virtual downstream data flow and the clothes when user equipment feedback When the quantity of downstream data flow in cell of being engaged in is identical, by each virtual downstream data flow of user equipment feedback by the survey Interference noise power caused by the outer cell of amount set of cells is defined as on each downstream data flow in the serving cell by institute State interference noise power caused by the outer cell of measurement set of cells；According on all downstream data flows in the serving cell by Interference noise power caused by the outer cell of the measurement set of cells, corresponding interference noise is established for each user equipment respectively Power matrix.
Optionally, the central processing unit 61 is specifically used for obtaining in the serving cell on all downstream data flows The interference noise power as caused by cell in the measurement set of cells；According to interference proportionality coefficient and the service got The interference noise power as caused by cell in the measurement set of cells in cell on all downstream data flows is calculated, and is obtained The interference noise power as caused by cell outside the measurement set of cells in the serving cell on all downstream data flows； According to the interference noise work(as caused by cell outside the measurement set of cells in the serving cell on all downstream data flows Rate, corresponding interference noise power matrix is established respectively for each user equipment.
A kind of base station provided in an embodiment of the present invention, the up channel that scheduling user's set can be treated by itself are carried out Measurement, uplink channel information is obtained, and with reference to current the first schedule information for measuring the scheduled cell in set of cells and not The second schedule information of cell is dispatched, to calculate the Signal to Interference plus Noise Ratio for treating downstream data flow corresponding to scheduling user's set, so Treat that scheduling user's set distributes based on the Signal to Interference plus Noise Ratio for treating downstream data flow corresponding to scheduling user's set to be described again afterwards Downlink transfer resource.Compared in the prior art, the transmission means of base station side actual use downlink data can be false with user equipment If transmission means it is different, and cause base station side to carry out this of wrong estimation to down channel according to the CQI of inaccuracy and ask Topic, the present invention pass through such process step so that base station side can both consider other cells pair in measurement set of cells Disturb caused by the down channel of serving cell, down channel can be entered according to uplink channel information with reference to base station side itself again Capable channel estimation, accuracy of the base station to dispatching user facility can be improved.
Also, in order to further improve accuracy, the CQI information that base station can be combined with user equipment feedback is entered to advance The processing of one step.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can borrow Software is helped to add the mode of required common hardware to realize, naturally it is also possible to which by hardware, but the former is more preferably in many cases Embodiment.Based on such understanding, portion that technical scheme substantially contributes to prior art in other words Dividing can be embodied in the form of software product, and the computer software product is stored in the storage medium that can be read, and such as be counted The floppy disk of calculation machine, hard disk or CD etc., including some instructions to cause a computer equipment (can be personal computer, Server, or network equipment etc.) perform method described in each embodiment of the present invention.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (20)

  1. A kind of 1. method of scheduling user's set, it is characterised in that including：
    The uplink channel information for treating each user equipment in the serving cell of scheduling user's set is obtained, wherein, the service is small Area belongs to measurement set of cells, and the measurement set of cells also includes at least one cooperation cell, the measurement set of cells Interior all minizones have dispatching sequence；
    The schedule information sent according to the uplink channel information and at least one cooperation cell in addition to the serving cell, It is determined that the Modulation and Coding Scheme MCS needed for scheduling；
    According to the MCS, scheduling user's set allocation of transmission resources is treated to be described.
  2. 2. according to the method for claim 1, it is characterised in that
    If at least one cooperation cell includes scheduled cell dispatching sequence before the serving cell, described modulated Spending the schedule information of cell is included on each subband of the scheduled cell, the emission value of the last scheduling user's set And transmission power；And/or
    If at least one cooperation cell includes unscheduled cell dispatching sequence after the serving cell, described not adjust Spending the schedule information of cell is included on each subband of the unscheduled cell, the transmitting work(of the last scheduling user's set Rate.
  3. 3. method according to claim 1 or 2, it is characterised in that the uplink channel information is the measurement cell set The detection reference signal SRS that all cells in conjunction are launched each user equipment in the serving cell measures to obtain 's.
  4. 4. according to the method for claim 1, it is characterised in that the MCS determined needed for scheduling, including：
    According to the uplink channel information and the schedule information of at least one cooperation cell, each user equipment is determined Descending channel information, the descending channel information of each user equipment does including letter of the user equipment on each subband Make an uproar ratio；
    According to the descending channel information of each user equipment, it is determined that on each subband pre-scheduling user equipment；
    Signal to Interference plus Noise Ratio on first subband is merged into processing, wherein the user equipment of pre-scheduling is institute on first subband State and treat scheduling user's set；
    According to the Signal to Interference plus Noise Ratio after merging, the MCS is determined.
  5. 5. according to the method for claim 4, it is characterised in that the user of determination pre-scheduling on each subband After equipment, in addition to：
    Determine that the serving cell dispatches the emission value and transmitting work(of the user equipment of the pre-scheduling on each subband Rate；
    Identified emission value and/or transmission power are sent at least one cooperation cell in measurement set of cells It is part or all of.
  6. 6. according to the method for claim 5, it is characterised in that described by identified emission value and/or transmission power The part or all of of at least one cooperation cell extremely in measurement set of cells is sent, including：
    If there is one or more unscheduled cells of the dispatching sequence after the serving cell, the serving cell is by institute The emission value and transmission power of determination are sent to all unscheduled cells；Or
    If there is one or more unscheduled cells of the dispatching sequence after the serving cell, the serving cell is by institute The emission value and transmission power of determination are sent to the unscheduled cell followed by dispatching sequence；Or
    If there is no unscheduled cell of the dispatching sequence after the serving cell, the serving cell is by identified hair Power is penetrated to send to all cooperation cells.
  7. 7. according to the method described in any one of claim 4 to 6, it is characterised in that described to determine the descending of each user equipment Channel information includes：
    Corresponding interference noise power matrix is established respectively for each user equipment, and the interference noise power matrix is used to represent The interference noise power as corresponding to the cell in measurement set of cells is sent to all downstream data flows of user equipment；
    According to the schedule information of the interference noise power matrix, the uplink channel information and at least one cooperation cell Calculated, respectively obtain each height of the cell corresponding to each user equipment in transmitting set of cells in the serving cell Signal to Interference plus Noise Ratio corresponding to the downstream data flow launched respectively to user equipment is taken, and generates descending channel information.
  8. 8. according to the method for claim 7, it is characterised in that described to establish corresponding interference respectively for each user equipment Noise power matrix includes：
    Receive the CQI information that each user equipment is sent；
    Calculated, obtained on the virtual downstream data flow of each user equipment feedback by the survey according to the CQI information Measure interference noise power caused by the outer cell of set of cells；
    To on the virtual downstream data flow that is fed back in each user equipment, the interference as caused by cell outside the measurement set of cells Noise power carries out average value processing, and will obtain the average of interference noise power as all downlink datas in the serving cell Interference noise power on stream；
    According to the interference noise power on all downstream data flows in the serving cell, established respectively pair for each user equipment The interference noise power matrix answered.
  9. 9. according to the method for claim 7, it is characterised in that described to establish corresponding interference respectively for each user equipment Noise power matrix includes：
    Receive the CQI information that each user equipment is sent；
    Calculated, obtained on the virtual downstream data flow of each user equipment feedback by the survey according to the CQI information Measure interference noise power caused by the outer cell of set of cells；
    , will when the virtual downstream data flow of user equipment feedback is identical with the quantity of the downstream data flow in the serving cell On each virtual downstream data flow of user equipment feedback as caused by cell outside the measurement set of cells interference noise power It is defined as on each downstream data flow in the serving cell interference noise as caused by cell outside the measurement set of cells Power；
    Made an uproar according to being disturbed as caused by cell outside the measurement set of cells on all downstream data flows in the serving cell Acoustical power, corresponding interference noise power matrix is established respectively for each user equipment.
  10. 10. according to the method for claim 7, it is characterised in that described to establish corresponding do respectively for each user equipment Disturbing noise power matrix includes：
    Disturbing as caused by cell in the measurement set of cells on all downstream data flows in the serving cell is obtained to make an uproar Acoustical power；
    According on all downstream data flows in interference proportionality coefficient and the serving cell that gets by the measurement cell Interference noise power is calculated caused by cell in set, obtain in the serving cell on all downstream data flows by institute State interference noise power caused by the outer cell of measurement set of cells；
    Made an uproar according to being disturbed as caused by cell outside the measurement set of cells on all downstream data flows in the serving cell Acoustical power, corresponding interference noise power matrix is established respectively for each user equipment.
  11. A kind of 11. base station, it is characterised in that including：
    Acquiring unit, the uplink channel information of each user equipment in the serving cell of scheduling user's set is treated for obtaining, its In, the serving cell belongs to measurement set of cells, and the measurement set of cells also includes at least one cooperation cell, described All minizones in measurement set of cells have dispatching sequence；
    First determining unit, for the uplink channel information that is obtained according to the acquiring unit and except the serving cell it The schedule information that outer at least one cooperation cell is sent, it is determined that the Modulation and Coding Scheme MCS needed for scheduling；
    Allocation unit, for the MCS determined according to first determining unit, treat that scheduling user's set distribution passes to be described Defeated resource.
  12. 12. base station according to claim 11, it is characterised in that
    If at least one cooperation cell includes scheduled cell dispatching sequence before the serving cell, described modulated Spending the schedule information of cell is included on each subband of the scheduled cell, the emission value of the last scheduling user's set And transmission power；And/or
    If at least one cooperation cell includes unscheduled cell dispatching sequence after the serving cell, described not adjust Spending the schedule information of cell is included on each subband of the unscheduled cell, the transmitting work(of the last scheduling user's set Rate.
  13. 13. the base station according to claim 11 or 12, it is characterised in that the uplink channel information is the measurement cell The detection reference signal SRS that all cells in set are launched each user equipment in the serving cell is measured Arrive.
  14. 14. base station according to claim 11, it is characterised in that first determining unit includes：
    First determining module, for the uplink channel information obtained according to the acquiring unit and at least one cooperation The schedule information of cell, determine the descending channel information of each user equipment, the down channel of each user equipment Information includes the user equipment Signal to Interference plus Noise Ratio on each subband；
    Second determining module, the down channel of each user equipment for being determined according to first determining module are believed Breath, it is determined that on each subband pre-scheduling user equipment；
    Merging module, for the letter on the first subband in the Signal to Interference plus Noise Ratio on each subband for determining first determining module It is dry to make an uproar than merging processing, wherein the user equipment for the pre-scheduling that second determining module determines is the user to be dispatched The subband of equipment is first subband；
    3rd determining module, obtained Signal to Interference plus Noise Ratio is handled for being merged according to the merging module, determines the MCS.
  15. 15. base station according to claim 14, it is characterised in that the base station also includes：
    Second determining unit, the hair of the user equipment of the pre-scheduling is dispatched for determining the serving cell on each subband Penetrate weights and transmission power；
    Transmitting element, emission value and/or transmission power for second determining unit to be determined are sent to measurement cell At least one cooperation cell in set it is part or all of.
  16. 16. base station according to claim 15, it is characterised in that the transmitting element is used for dispatching sequence being present in institute When stating one or more unscheduled cells after serving cell, identified emission value and transmission power are sent to institute There is unscheduled cell；
    Or the transmitting element is used for dispatching sequence to be present one or more unscheduled small after the serving cell Qu Shi, identified emission value and transmission power are sent to the unscheduled cell followed by dispatching sequence；
    , will or the transmitting element is used for when in the absence of dispatching sequence in the unscheduled cell after the serving cell Identified transmission power is sent to all cooperation cells.
  17. 17. according to the base station described in any one of claim 14 to 16, it is characterised in that first determining module includes：
    Matrix setting up submodule, for establishing corresponding interference noise power matrix, the interference respectively for each user equipment All downstream data flows that noise power matrix is used to represent to be sent to user equipment by the cell in measurement set of cells are corresponding Interference noise power；
    Calculating sub module, for the interference noise power matrix, described up established according to the matrix setting up submodule The schedule information of channel information and at least one cooperation cell is calculated, and is respectively obtained and is sent out corresponding to each user equipment Penetrate the downstream data flow pair that the cell in set of cells is launched to user equipment respectively on each subband of the serving cell The Signal to Interference plus Noise Ratio answered, and generate descending channel information.
  18. 18. base station according to claim 17, it is characterised in that the matrix setting up submodule is described each for receiving The CQI information that user equipment is sent；Calculated according to the CQI information, obtain each user equipment feedback it is virtual under As interference noise power caused by cell outside the measurement set of cells in row data flow；To the void fed back in each user equipment Intend on downstream data flow, the interference noise power progress average value processing as caused by cell outside the measurement set of cells, and will To interference noise power average as the interference noise power on all downstream data flows in the serving cell；According to described Interference noise power in serving cell on all downstream data flows, corresponding interference noise is established respectively for each user equipment Power matrix.
  19. 19. base station according to claim 17, it is characterised in that the matrix setting up submodule is described each for receiving The CQI information that user equipment is sent；Calculated according to the CQI information, obtain each user equipment feedback it is virtual under As interference noise power caused by cell outside the measurement set of cells in row data flow；When user equipment feedback it is virtual descending When data flow is identical with the quantity of the downstream data flow in the serving cell, by each virtually lower line number of user equipment feedback According to stream it is upper as it is described measure cell outside set of cells caused by interference noise power be defined as under each in the serving cell As interference noise power caused by cell outside the measurement set of cells in row data flow；Under all in the serving cell The interference noise power as caused by cell outside the measurement set of cells in row data flow, is established respectively for each user equipment Corresponding interference noise power matrix.
  20. 20. base station according to claim 17, it is characterised in that the matrix setting up submodule is used to obtain the service The interference noise power as caused by cell in the measurement set of cells in cell on all downstream data flows；According to interference ratio Being produced by cell in the measurement set of cells on all downstream data flows in example coefficient and the serving cell got Interference noise power calculated, obtain in the serving cell on all downstream data flows by the measurement set of cells Interference noise power caused by outer cell；According on all downstream data flows in the serving cell by the measurement cell set Interference noise power caused by outer cell is closed, corresponding interference noise power matrix is established respectively for each user equipment.
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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3214884B1 (en) * 2014-10-27 2019-06-19 Huawei Technologies Co., Ltd. Method and device for adaptive modulation and coding
US10182426B2 (en) * 2015-03-13 2019-01-15 Qualcomm Incorporated Scheduling of downlink transmissions based on exchanges of pre-scheduling and scheduling messages
CN107006019B (en) * 2015-03-25 2019-10-25 华为技术有限公司 A kind of data transmission method and device
CN106160803A (en) * 2015-03-30 2016-11-23 北京信威通信技术股份有限公司 The methods, devices and systems of descending channel information are obtained based on channel reciprocity
CN107395332B (en) * 2016-05-16 2020-01-10 华为技术有限公司 CQI determination method, user equipment and base station
CN111130605B (en) * 2018-10-30 2021-06-04 大唐移动通信设备有限公司 Method and device for distributing transmitting power
CN112104581A (en) * 2019-06-17 2020-12-18 中国电信股份有限公司 Modulation-demodulation method, modulation-demodulation device and computer-readable storage medium
CN113972934B (en) * 2020-07-22 2023-09-08 华为技术有限公司 Data transmission method, device and system and readable storage medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101867938A (en) * 2009-04-20 2010-10-20 大唐移动通信设备有限公司 Method and device for configuring uplink reference signal of multipoint cooperative transmission
CN102036393A (en) * 2009-09-28 2011-04-27 大唐移动通信设备有限公司 Method and equipment for determining multi-cell channel information
CN102149130A (en) * 2011-04-22 2011-08-10 电信科学技术研究院 Method, device and system for reporting channel quality indicator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101616442B (en) * 2008-06-23 2012-12-12 华为技术有限公司 Method for transmitting uplink data and terminal device
KR101036686B1 (en) * 2008-12-31 2011-05-24 주식회사 세아네트웍스 Method and apparatus for controlling of data packet scheduling in wireless communication system
KR101522645B1 (en) * 2009-02-25 2015-05-22 삼성전자주식회사 Apparatus and method for scheduling rate in wireless communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101867938A (en) * 2009-04-20 2010-10-20 大唐移动通信设备有限公司 Method and device for configuring uplink reference signal of multipoint cooperative transmission
CN102036393A (en) * 2009-09-28 2011-04-27 大唐移动通信设备有限公司 Method and equipment for determining multi-cell channel information
CN102149130A (en) * 2011-04-22 2011-08-10 电信科学技术研究院 Method, device and system for reporting channel quality indicator

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