CN106559168A - In coordinate multipoint communication, cqi CQI determines system and method - Google Patents
In coordinate multipoint communication, cqi CQI determines system and method Download PDFInfo
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- CN106559168A CN106559168A CN201510624690.2A CN201510624690A CN106559168A CN 106559168 A CN106559168 A CN 106559168A CN 201510624690 A CN201510624690 A CN 201510624690A CN 106559168 A CN106559168 A CN 106559168A
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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
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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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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Abstract
The invention provides CQI determines system and method in a kind of coordinate multipoint communication, in the case where down-bound pilot frequency signal expense need not be increased, to realize that UE reports accurately CQI to base station in coordinate multipoint communication.The inventive method includes：UE receives the schedule information that base station sends, the schedule information includes the first information, the first information is used to indicate that UE measures CQI instantaneous values, reports CQI instantaneous values in the n-th+K subframe in n-th subframe, the n is positive integer, the K is preset value, and n-th subframe is that base station carries out multipoint cooperative and sends the subframe that CoMP mode dispatchings are located to UE；UE is in n-th subframe measurement CQI instantaneous value, and reports CQI instantaneous value to base station in the n-th+K subframe.
Description
Technical field
The present invention relates to cqi CQI in the communications field, more particularly to a kind of communication of coordinate multipoint
Determine system and method, a kind of user equipment and a kind of base station.
Background technology
In Long Term Evolution (Long Term Evolution, LTE) system by using identical networking technology come
The availability of frequency spectrum is improved, this requires descending interference control technology is introduced between co-frequency cell, and down collaboration is more
Point sends (Downlink Coordinated Multiple Points Transmission, DL CoMP) technology
Introduce as a kind of descending co-channel interference control technology, by running time-frequency resource, the work(of coordinating the multiple cells of configuration
Rate resource, spatial domain resource, can solve cell between co-frequency cell under the stronger network environment of descending interference
Edge customer downstream spectrum efficiency and descending throughput are limited to the problem disturbed between neighbor cell, so as to be lifted
Cell Edge User throughput, improves high speed business covering.
From in implementation, DL CoMP technologies include four kinds of patterns, respectively joint transmission (Joint
Transmit, JT) pattern, dynamic node power zero setting (Dynamic Point Blanking, DPB) mould
Formula, dynamic node select (Dynamic Piont Selection, DPS) pattern and cooperative beam figuration
(Coordinated Beamforming, CBF) pattern.It is for these four DL CoMP patterns, existing
The user equipment (User Equipment, UE) of R8/R9/R10 is based on cell reference signals (cell-specific
Reference signal, CRS) or channel condition information measuring reference signals (Channel State Information
Reference Signal, CSI-RS) carry out cqi (Channel Quality Indicator, CQI)
Measurement, measures CQI as UE is not based on the corresponding CoMP patterns of UE, causes UE accurately measure
CQI under the corresponding CoMP patterns of UE.Third generation collaborative project
A kind of transmission mode is proposed in (3rd Generation Partnership Project, 3GPP) R11 agreements
TM10, the transmission mode is by increasing many sets channel condition information (Channel State information, CSI)
Measurement configures to strengthen the measurements of the CQI under DL CoMP several modes, although can be surveyed by the transmission mode
CQI under amount part DL CoMP, but the expense of pilot signal can be greatly increased.
In sum, as the UE of existing R8/R9/R10 cannot be accurately measured under the corresponding CoMP patterns of UE
CQI, the UE of existing R11/R12 can measure the CQI under the DL CoMP of part, but descending leading of increasing
Frequency signal overhead is excessive, therefore in the case where increasing down-bound pilot frequency signal expense, UE is without normal direction base
Station reports accurately CQI.
The content of the invention
The invention provides in a kind of communication of coordinate multipoint cqi CQI determine system and method, one
User equipment and a kind of base station are planted, it is in the case where down-bound pilot frequency signal expense need not be increased, real
In existing coordinate multipoint communication, UE reports accurately CQI to base station.
In a first aspect, cqi CQI in a kind of coordinate multipoint communication provided in an embodiment of the present invention
Determine method, including：
User equipment (UE) receives the schedule information that base station sends, and the schedule information includes the first information, and this
One information is used to indicate that UE measures CQI instantaneous values, reports CQI in the n-th+K subframe in n-th subframe
Instantaneous value, n is positive integer, and K is preset value, and n-th subframe carries out multipoint cooperative for base station and send out to UE
The subframe for sending CoMP mode dispatchings to be located；
UE is in n-th subframe measurement CQI instantaneous value, and reports CQI to base station in the n-th+K subframe
Instantaneous value.
So, UE is UE based on the corresponding COMP of n-th subframe to the CQI instantaneous values that base station reports
Pattern measurement is obtained, the CQI instantaneous values COMP patterns holding corresponding with n-th subframe of UE measurements
Unanimously, and UE is by the way of CQI is reported aperiodic, therefore, it is possible to realize that UE reports to base station
Accurately CQI under the corresponding COMP patterns of n subframe UE.
With reference in a first aspect, in the first possible implementation, schedule information also includes the second information,
Second information is the scheduling bandwidth that base station carries out CoMP mode dispatchings in n-th subframe to UE；
UE measures CQI instantaneous values in n-th subframe, including：
CQI instantaneous values of the UE under n-th subframe measurement scheduling bandwidth.
So, the second information indicates that UE measures the Measurement bandwidth of CQI instantaneous values, and the Measurement bandwidth is base station
The scheduling bandwidth of CoMP mode dispatchings, and then UE are carried out to UE according to the second information in n-th subframe
The Measurement bandwidth of instruction carries out CQI instantaneous values.
With reference to the first possible implementation of first aspect, in second possible realization of first aspect
In mode, schedule information also includes the 3rd information, and the 3rd information is used to indicate that UE is carried out in n-th subframe
The transmitting and scheduling of wave beam forming BF patterns；
CQI instantaneous values of the UE under n-th subframe measurement scheduling bandwidth, including：
Demodulated reference signal DMRS on scheduling bandwidths of the UE in n-th subframe measurement based on BF patterns
CQI instantaneous values.
So, the 3rd information indicates that UE measures the sub-carrier positions of CQI instantaneous values, and the sub-carrier positions are
DMRS on the scheduling bandwidth of BF patterns, and then UE enters according to the sub-carrier positions that the 3rd information is indicated
Row CQI instantaneous values.
With reference in a first aspect, in the third possible implementation, UE is in n-th subframe measurement CQI
Instantaneous value, including：
CQI instantaneous values of the UE under n-th subframe measuring system full bandwidth.
With reference to the third possible implementation of first aspect, in the 4th kind of possible realization of first aspect
In mode, schedule information also includes the 3rd information, and the 3rd information is used to indicate that UE is carried out in n-th subframe
The transmitting and scheduling of wave beam forming BF patterns；
CQI instantaneous values of the UE under n-th subframe measuring system full bandwidth, including：
Cell reference signals CRS on system full bandwidths of the UE in n-th subframe measurement based on BF patterns
CQI instantaneous values.
So, the 3rd information indicates that UE measures the sub-carrier positions of CQI instantaneous values, and the sub-carrier positions are
CRS on the system full bandwidth of BF patterns, and then UE enters according to the sub-carrier positions that the second information is indicated
Row CQI instantaneous values.
In the mode of above two UE measurement CQI instantaneous values, the measurement band that the first UE is indicated in base station
CQI instantaneous values are measured on width, second UE acquiescence measures CQI instantaneous values on system full bandwidth.Relatively
In second metering system, the first metering system reduces Measurement bandwidth scope so that the CQI of measurement
Instantaneous value is more accurate, while with the diminution of Measurement bandwidth scope, reducing measurement expense.
Second aspect, cqi CQI in a kind of coordinate multipoint communication provided in an embodiment of the present invention
Determine method, including：
Base station sends schedule information to user equipment (UE), and schedule information includes the first information, and the first information is used
Measure CQI instantaneous values, CQI instantaneous values reported in the n-th+K subframe in n-th subframe in instruction UE,
N is positive integer, and K is preset value, and n-th subframe carries out multipoint cooperative for base station and send CoMP to UE
The subframe that mode dispatching is located；
Base station receives the CQI instantaneous values that UE is reported in the n-th+K subframe.
So, it is UE based on the corresponding COMP of n-th subframe that base station receives the CQI instantaneous values that report of UE
Pattern measurement is obtained, the CQI instantaneous values COMP patterns holding corresponding with n-th subframe of UE measurements
Unanimously, and UE is by the way of CQI is reported aperiodic, therefore, it is possible to realize base station determine n-th it is sub
Accurately CQI under the corresponding COMP patterns of frame UE.And then the CQI that base station can be reported using UE
Instantaneous value is scheduled the selection of modulation coding mode (Modulation and coding scheme, MCS),
So that the MCS of selection is matched with the channel of n-th subframe, the handling capacity of user is maximized.Base station
Other subframes (corresponding CoMP patterns of other subframes can be carried out using the CQI instantaneous values that UE is reported
It is identical with the corresponding CoMP patterns of n-th subframe) on MCS select, so as to strengthen UE measurement CQI
Precision while, lifted edge customer handling capacity.
With reference to second aspect, in the first possible implementation, schedule information also includes the second information,
Second information is the scheduling bandwidth that base station carries out CoMP mode dispatchings in n-th subframe to UE.
So, by the second information, base station indicates that UE measures the Measurement bandwidth of CQI instantaneous values, the measurement band
A width of base station carries out the scheduling bandwidth of CoMP mode dispatchings in n-th subframe to UE, and then UE can be with
CQI instantaneous values are carried out according to the Measurement bandwidth that the second information is indicated.
With reference to the first possible implementation of second aspect or second aspect, at second of second aspect
In possible implementation, schedule information also includes the 3rd information, and the 3rd information is used to indicate UE n-th
Individual subframe carries out the transmitting and scheduling of wave beam forming BF patterns.
So, by the 3rd information, base station indicates that UE measures the sub-carrier positions of CQI instantaneous values, the sub- load
Ripple position is the CRS on the system full bandwidth of the DMRS or BF patterns on the scheduling bandwidth of BF patterns,
And then UE carries out CQI instantaneous values according to the sub-carrier positions that the 3rd information is indicated.
The third aspect, a kind of user equipment (UE) provided in an embodiment of the present invention, including：
Receiving unit, for receiving the schedule information of base station transmission, schedule information includes the first information, first
Information is used to indicate that UE measures CQI instantaneous values, reports CQI in the n-th+K subframe in n-th subframe
Instantaneous value, n is positive integer, and K is preset value, and n-th subframe carries out multipoint cooperative for base station and send out to UE
The subframe for sending CoMP mode dispatchings to be located；
Processing unit, for the schedule information received according to receiving unit, in n-th subframe measurement CQI
Instantaneous value；
Transmitting element, for the schedule information received according to receiving unit, in the n-th+K subframe on base station
The CQI instantaneous values that report processing unit measurement is obtained.
With reference to the third aspect, in the first possible implementation, schedule information also includes the second information,
Second information is the scheduling bandwidth that base station carries out CoMP mode dispatchings in n-th subframe to UE；
Processing unit specifically for：
CQI instantaneous values under n-th subframe measurement scheduling bandwidth.
With reference to the first possible implementation of the third aspect, in second possible realization of the third aspect
In mode, schedule information also includes the 3rd information, and the 3rd information is used to indicate that UE is carried out in n-th subframe
The transmitting and scheduling of wave beam forming BF patterns；
During CQI instantaneous value of the processing unit under n-th subframe measurement scheduling bandwidth, specifically for：
The CQI of demodulated reference signal DMRS on scheduling bandwidth of n-th subframe measurement based on BF patterns
Instantaneous value.
With reference to the third aspect, in the third possible implementation, processing unit specifically for：
CQI instantaneous values under n-th subframe measuring system full bandwidth.
With reference to the third possible implementation of the third aspect, in the 4th kind of possible realization of the third aspect
In mode, schedule information also includes the 3rd information, and the 3rd information is used to indicate that UE is carried out in n-th subframe
The transmitting and scheduling of wave beam forming BF patterns；
During CQI instantaneous value of the processing unit under n-th subframe measuring system full bandwidth, specifically for：
The CQI of cell reference signals CRS on system full bandwidth of n-th subframe measurement based on BF patterns
Instantaneous value.
Fourth aspect, a kind of base station provided in an embodiment of the present invention, including：
Processing unit, for determining schedule information, schedule information includes the first information, and the first information is used to refer to
Showing, user equipment (UE) measures CQI instantaneous values, CQI winks reported in the n-th+K subframe in n-th subframe
Duration, n is positive integer, and K is preset value, and n-th subframe carries out multipoint cooperative transmission to UE for base station
The subframe that CoMP mode dispatchings are located；
Transmitting element, for the schedule information determined to UE transmission processes unit；
Receiving unit, for receiving the CQI instantaneous values that UE is reported in the n-th+K subframe.
With reference to fourth aspect, in the first possible implementation, schedule information also includes the second information,
Second information is the scheduling bandwidth that base station carries out CoMP mode dispatchings in n-th subframe to UE.
With reference to the first possible implementation of fourth aspect or fourth aspect, at second of fourth aspect
In possible implementation, schedule information also includes the 3rd information, and the 3rd information is used to indicate UE n-th
Individual subframe carries out the transmitting and scheduling of wave beam forming BF patterns.
In terms of 5th, cqi CQI in a kind of coordinate multipoint communication provided in an embodiment of the present invention
Determine system, including user equipment (UE) and base station,
UE is included if the first of the third aspect, the third aspect is to arbitrary in the 4th kind of possible implementation
Described UE；
Base station is included if the first of fourth aspect, fourth aspect is to arbitrary in second possible implementation
Described base station.
In technical scheme provided in an embodiment of the present invention, base station sends schedule information to UE；UE is according to the tune
The instruction of degree information, measures the CQI instantaneous values of n-th subframe, by the way of reporting aperiodic, i.e., the
CQI instantaneous value of the n+K subframe to base station reporting measurement, n-th subframe carry out CoMP mould to UE for base station
The subframe that formula scheduling is located, as the CQI instantaneous values are UE based on the corresponding COMP patterns of n-th subframe
Measurement is obtained, and the CQI instantaneous values of UE measurements COMP patterns corresponding with n-th subframe are consistent,
Therefore technical scheme provided in an embodiment of the present invention can realize that UE reports n-th subframe UE correspondence to base station
COMP patterns under accurately CQI.
Description of the drawings
Fig. 1 (a) is a kind of transmission schematic diagram of DPS patterns provided in an embodiment of the present invention；
Fig. 1 (b) is a kind of transmission schematic diagram of DPB patterns provided in an embodiment of the present invention；
Fig. 1 (c) is a kind of transmission schematic diagram of JT patterns provided in an embodiment of the present invention；
Fig. 1 (d) is a kind of transmission schematic diagram of CBF patterns provided in an embodiment of the present invention；
Fig. 2 determines method flow schematic diagram for CQI in a kind of coordinate multipoint communication provided in an embodiment of the present invention；
Fig. 3 determines method flow schematic diagram for CQI in a kind of coordinate multipoint communication provided in an embodiment of the present invention；
Fig. 4 determines base station and UE in method for CQI in a kind of coordinate multipoint communication provided in an embodiment of the present invention
Between interactive schematic diagram；
Fig. 5 determines base station and UE in method for CQI in a kind of coordinate multipoint communication provided in an embodiment of the present invention
Between interactive schematic diagram；
Fig. 6 is a kind of structural representation of UE provided in an embodiment of the present invention；
Fig. 7 is a kind of structural representation of base station provided in an embodiment of the present invention；
Fig. 8 is the structural representation that CQI determines system during a kind of coordinate multipoint provided in an embodiment of the present invention communicates
Figure；
Fig. 9 is a kind of structural representation of UE provided in an embodiment of the present invention；
Figure 10 is a kind of structural representation of base station provided in an embodiment of the present invention.
Specific 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 clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that obtained, belong to the scope of protection of the invention.
During the embodiment of the present invention provides a kind of coordinate multipoint communication, cqi CQI determines method and dress
Put, in the case where down-bound pilot frequency signal expense need not be increased, realize coordinate multipoint communication in UE to
Base station reports accurately CQI.Wherein, method and apparatus be based on same inventive concept, due to method and
The principle of device solve problem is similar, therefore the enforcement of apparatus and method can repeat part not with cross-reference
Repeat again.
Technical scheme provided in an embodiment of the present invention is related to down collaboration multiple spot and sends DL CoMP technologies,
By using identical networking technology improving the availability of frequency spectrum in LTE system, this is required between co-frequency cell
Descending interference control technology is introduced, DL CoMP technologies are introduced as a kind of descending co-channel interference control technology,
By coordinating to configure the running time-frequency resource of multiple cells, power resource, spatial domain resource, can be between co-frequency cell
Under the stronger network environment of descending interference, solve Cell Edge User downstream spectrum efficiency and descending throughput is received
It is limited to the problem disturbed between neighbor cell, so as to lift Cell Edge User throughput, improves high speed business and cover
Lid.
From in implementation, DL CoMP technologies include four kinds of patterns, respectively joint transmission JT pattern,
Dynamic node power zero setting DPB patterns, dynamic node select DPS patterns and cooperative beam figuration CBF moulds
Formula.
Wherein, Fig. 1 (a) show the transmission schematic diagram of DPS patterns, and in DPS patterns, UE is from CoMP
In collaboration set, the top-quality cell of selection signal carries out physical down link sharing channel (Physical
Downlink Shared Channel, PDSCH) transmission, the cell for carrying out PDSCH transmission with UE can be with
In each subframe up conversion.Fig. 1 (b) show the transmission schematic diagram of DPB patterns, in DPB patterns,
When one cell is carried out data transmission with UE, other cells in CoMP collaboration sets keep mourning in silence, to reduce
Other cells produce interference to the UE.Fig. 1 (c) show the transmission schematic diagram of JT patterns, in JT patterns,
UE carries out PDSCH transmission with multiple cells (cell portion of CoMP collaboration sets or whole cells), to carry
High UE receives the quality of signal.Fig. 1 (d) show the transmission schematic diagram of CBF patterns, in CBF patterns,
In a cell being merely present in CoMP collaboration sets to be transmitted to the data of UE, in CoMP collaboration sets
Multiple cells together decide on and how to dispatch and how to carry out wave beam forming, to efficiently control in collaboration region
The interference produced by UE.
Above-mentioned four kinds of patterns can be divided into two big class according to cooperative mode difference, the first kind is Combined Treatment
(Joint Processing, JP) pattern, including JT patterns, DPB patterns and DPS, Equations of The Second Kind are cooperation
Scheduling (Coordinated Scheduling, CS) pattern, including CBF patterns.
Base station carries out the scheduling of CoMP patterns in n-th subframe to UE, and the CoMP patterns can be JT moulds
A kind of pattern in formula, DPB patterns, DPS patterns and CBF patterns, UE need to measure and report n-th
CQI under the corresponding CoMP patterns of subframe, base station is scheduled modulating-coding side using the CQI that UE is reported
The selection of formula (Modulation and coding scheme, MCS) so that the MCS of selection is sub with n-th
The channel of frame matches, and maximizes the handling capacity of user.
In a kind of coordinate multipoint communication provided in an embodiment of the present invention, cqi CQI determines method, base
Stand schedule information is sent to UE；Instructions of the UE according to the schedule information, the CQI for measuring n-th subframe are instantaneous
Value, by the way of reporting aperiodic, i.e., CQI instantaneous values from the n-th+K subframes to base station reporting measurement,
N-th subframe carries out the subframe at CoMP mode dispatchings place for base station to UE, as the CQI instantaneous values are
UE is obtained based on the corresponding COMP patterns measurement of n-th subframe, the CQI instantaneous values and n-th of UE measurements
The corresponding COMP patterns of individual subframe are consistent, therefore technical scheme provided in an embodiment of the present invention can be real
Existing UE reports under the corresponding COMP patterns of n-th subframe UE accurately CQI to base station.
Embodiment one
As shown in Fig. 2 in UE sides, the embodiment of the present invention provides channel quality in a kind of coordinate multipoint communication
Index CQI determines method, including：
S201, UE receive the schedule information that base station sends, and the schedule information includes the first information, and this first
Information is used to indicate that UE reports CQI winks in n-th subframe measurement CQI instantaneous values, the n-th+K subframe
Duration, n is positive integer, and K is preset value, and n-th subframe carries out multipoint cooperative transmission to UE for base station
The subframe that CoMP mode dispatchings are located；
S202, UE are in n-th subframe measurement CQI instantaneous value, and report to base station in the n-th+K subframe
CQI instantaneous values.
In the present embodiment, UE receives the scheduling of the CoMP patterns of base station, the CoMP in n-th subframe
Pattern can be a kind of pattern in JT patterns, DPB patterns, DPS patterns and CBF patterns.Base station is true
The method of the CQI of fixed n-th subframe is as shown in Fig. 2 mainly include：UE receives the scheduling that base station sends
Information, UE measure CQI instantaneous value in n-th subframe according to the schedule information, and in the n-th+K son
Frame reports the CQI instantaneous values to base station.
Base station may carry out the scheduling of different CoMP patterns in different subframes to UE, in the present embodiment
CQI instantaneous values n-th subframe of correspondence of UE measurements, it is ensured that the CQI instantaneous values and other subframes
CQI instantaneous values are separate, as CQI instantaneous values are UE corresponding based on n-th subframe UE
CoMP patterns measurements is arrived, therefore UE can be realized on base station by the technical scheme of the present embodiment
Report under the corresponding COMP patterns of n-th subframe UE accurately CQI.
CQI instantaneous values, i.e. UE are reported in the n-th+K subframe by the way of reporting aperiodic in the present embodiment
The CQI instantaneous values of n-th subframe are reported to base station.Defined in existing LTE protocol, CQI reporting schemes have week
Phase reports and reports CQI and aperiodic two kinds of CQI, wherein, periodic report CQI refers to UE using the time-division that networks
The fixed physical uplink control channel (Physical Uplink Control CHannel, PUCCH) matched somebody with somebody
Resource carries out periodically reporting CQI, reports aperiodic CQI to refer to that UE is reported in n-th subframe triggering aperiodic
Ask, report CQI using PUSCH in the n-th+K subframe.Due to not bright in periodic report CQI modes
The CQI for really reporting is measured in which subframe, rather than specify that aperiodic in periodic report CQI modes
The CQI for reporting is reported aperiodic in triggering so that the CQI for reporting aperiodic
It is consistent with the COMP mode dispatchings that the base station in the subframe of measurement CQI is carried out to UE.Therefore, in order to realize
The CoMP mode dispatchings that the CQI that UE is reported is carried out to UE with n-th subframe base station are consistent, in the present embodiment
By the way of CQI is reported aperiodic.
In the present embodiment, UE is in n-th subframe measurement CQI instantaneous value, sub at n-th based on base station
The scheduling of the CoMP patterns for carrying out, UE on Measurement bandwidth measures useful signal intensity respectively and interference is made an uproar
Acoustic signal intensity, wherein, useful signal intensity is that multiple useful signals that UE is measured on Measurement bandwidth are strong
The meansigma methodss of degree, interfering noise signal intensity are multiple interfering noise signals that UE is measured on Measurement bandwidth
The meansigma methodss of intensity；UE signal calculated and interference plus noise ratio (Signalto Interference plus
NoiseRatio, SINR), SINR=useful signals intensity/interfering noise signal intensity；UE is according to SINR
Determine that the corresponding CQI of SINR, the CQI are UE and measure in n-th subframe with the corresponding relation of CQI
CQI instantaneous values.
Base station carries out the scheduling of different CoMP patterns, the useful letter of UE measurements in different subframes to UE
Number intensity is different with interfering noise signal intensity, therefore the calculated SINR of UE are different, and then SINR
Corresponding CQI is also different.For example：As shown in Fig. 1 (a), base station is carried out to UE in n-th subframe
The scheduling of DPS patterns, when transfer point (Transmission Point, TP) 1 carries out PDSCH biographies with UE
When defeated, UE measurement useful signal intensity be S1, interfering noise signal intensity be I2+N, n-th subframe
The corresponding SINR1=S1/ of CQI instantaneous values (I2+N)；When TP2 carries out PDSCH transmission with UE,
The useful signal intensity of UE measurements is S2, interfering noise signal intensity is I1+N, the CQI of n-th subframe
The corresponding SINR2=S2/ of instantaneous value (I1+N).As shown in Fig. 1 (b), base station is in n-th subframe to UE
The scheduling of DPB patterns is carried out, when TP2 mourns in silence, the useful signal intensity of UE measurements is S1, interference
Noise signal strength is N, the corresponding SINR3=S1/N of CQI instantaneous values of n-th subframe.Such as Fig. 1 (c)
Shown, base station carries out the scheduling of JT patterns in n-th subframe to UE, when TP1 and TP2 is simultaneously to UE
When sending useful signal, the useful signal intensity that UE is measured is S1+S2, interfering noise signal intensity is N,
The corresponding SINR4=of CQI instantaneous values (the S1+S2)/N of n-th subframe.Wherein, S1 is received for UE
To the useful signal of TP1, S2 receives the useful signal of TP2 for UE, and I1 receives TP1 for UE
Interference signal, I2 receives the interference signal of TP2 for UE, and N is noise.
In the present embodiment, UE can have following two ways in n-th subframe measurement CQI instantaneous value：
Mode one：When the second information is also included in the schedule information that UE is received, second information exists for base station
When n-th subframe carries out the scheduling bandwidth of CoMP mode dispatchings to UE, UE is measured in n-th subframe
CQI instantaneous values under the scheduling bandwidth of UE correspondence CoMP patterns.Using the scheduling bandwidth as UE
Measurement bandwidth during n subframe measurement CQI instantaneous value.
Illustrate, with UE the corresponding CoMP patterns of n-th subframe scheduling bandwidth as 40 resources
As a example by block (Resource Block, RB), it is assumed that it is strong that UE measures a useful signal on each RB
Degree and an interfering noise signal intensity, altogether measurement obtain 40 useful signal intensity and 40 interference noises
Signal intensity, calculates the meansigma methodss of the meansigma methodss and interfering noise signal intensity of useful signal intensity respectively, then
The meansigma methodss of the meansigma methodss of useful signal intensity and interfering noise signal intensity are done into business and obtains SINR, and then
Determine n-th subframe UE correspondence CoMP pattern that the corresponding CQI of SINR, the CQI are UE measurements
Scheduling bandwidth under CQI instantaneous values.UE measures the grain of useful signal intensity and interfering noise signal intensity
Degree can also be the subcarrier of RB.
Optionally, when the 3rd information is also included in the schedule information that UE is received, the 3rd information is used to indicate
UE when n-th subframe carries out the transmitting and scheduling of wave beam forming (Beamforming, BF) pattern, UE
Demodulated reference signal (the Demodulation on scheduling bandwidth of n-th subframe measurement based on BF patterns
Reference Symbol, DMRS) CQI instantaneous values.
Under normal circumstances, when the CoMP mode dispatchings that base station is carried out to UE are JT mode dispatchings, UE enters
The transmitting and scheduling of row BF patterns；Base station to the CoMP mode dispatchings that UE is carried out are in addition to JT patterns its
When his Three models are dispatched, UE carries out BF patterns or multiple-input and multiple-output (multple input multiple
Output, MIMO) pattern transmitting and scheduling.
When UE carries out the transmitting and scheduling of BF patterns, the corresponding subcarrier of BF patterns include DMRS and
Cell reference signals (Cell Reference signals, CRS)；When UE carries out the transmission of MIMO mode
During scheduling, the corresponding subcarrier of BF patterns only includes DMRS.If schedule information include the second information and
3rd information, then the sub-carrier positions of UE measurements CQI instantaneous values are DMRS.
Mode two：UE gives tacit consent to the CQI instantaneous values under n-th subframe measuring system full bandwidth, will be
Measurement bandwidth of the system full bandwidth as UE in n-th subframe measurement CQI instantaneous value.
Illustrate, so that system full bandwidth is as 100RB as an example, it is assumed that UE measures one on each RB
Useful signal intensity and an interfering noise signal intensity, altogether measurement obtain 100 useful signal intensity and
100 interfering noise signal intensity, the meansigma methodss and interfering noise signal for calculating useful signal intensity respectively are strong
The meansigma methodss of degree, then the meansigma methodss of the meansigma methodss of useful signal intensity and interfering noise signal intensity are done into business obtain
To SINR, and then determine that the corresponding CQI of SINR, the CQI are n-th sub-frame system of UE measurements
CQI instantaneous values under full bandwidth.The granularity of UE measurement useful signal intensity and interfering noise signal intensity is also
It can be the subcarrier of RB.
Optionally, when the schedule information that UE is received includes the 3rd information, the 3rd information is used to indicate UE
When n-th subframe carries out the transmitting and scheduling of BF patterns, UE is in n-th subframe measurement based on BF patterns
The CQI instantaneous values of the CRS of lower system full bandwidth, the i.e. sub-carrier positions of UE measurement CQI instantaneous values exist
In CRS.
In above two mode, it is corresponding that the CQI instantaneous values that UE is measured are all based on n-th subframe UE
CoMP patterns.It is preferred that UE measurements are in n-th subframe UE correspondence CoMP pattern in mode one
CQI instantaneous values under scheduling bandwidth, relative to mode two, mode one reduces Measurement bandwidth scope so that
The CQI instantaneous values of measurement are more accurate, while with the diminution of Measurement bandwidth scope, reducing measurement expense.
In the present embodiment, UE reports CQI instantaneous values, i.e. UE to exist to base station by the way of reporting aperiodic
After n-th subframe measurement CQI instantaneous value, the CQI instantaneous values are not reported to base station immediately, and be to wait for K
Individual subframe, i.e., just report the CQI instantaneous values to base station in the n-th+K subframe.For FDD
The value of (Frequency division duplex, FDD) system K is 4, time division duplex (Time division
Duplex, TDD) in system under proportioning 0-6 the value of K as shown in following table one.
Table one
In the present embodiment, UE can be with reference to the triggering Downlink Control Information (Downlink that reports aperiodic
Control Information, DCI) channel condition information in format fields (Channel State information,
CSI) (request) is asked to indicate to report CQI instantaneous values to base station.CSI request in DCI format field
Value implication is as follows：
CSI request values are 00, represent that UE does not trigger CQI aperiodic and reports；
CSI request values are 01, represent that only UE is just triggered aperiodic under the scene of single Serving cell
CQI is reported；
CSI request values are 10 or 11, represent that only UE just triggers non-under the scene of multiple Serving cells
Cycle, CQI was reported.
To be further ensured that the accuracy of CQI measurements, to pin in above-mentioned DCI format field in the present embodiment
The CSI request value implications of the scene of single Serving cell are further defined, it is specific as follows：
When CSI request values are 10, UE is triggered on aperiodic under the scene of single or multiple Serving cells
Report CQI.If the schedule information that UE is received includes the second information, second information is that base station is sub at n-th
Frame carries out the scheduling bandwidth of CoMP mode dispatchings to UE, then UE measurements are in n-th subframe UE correspondence CoMP
CQI instantaneous values under the scheduling bandwidth of pattern；Otherwise, UE is given tacit consent in n-th subframe measuring system full bandwidth
Under CQI instantaneous values.
When CSI request values are 11, UE is triggered on aperiodic under the scene of single or multiple Serving cells
Report CQI.If the schedule information that UE is received includes the second information and the 3rd information, second information is base station
The scheduling bandwidth of CoMP mode dispatchings is carried out to UE in n-th subframe, the 3rd information is used to indicate that UE exists
N-th subframe carries out the transmitting and scheduling of BF patterns, then UE measures the scheduling band in BF patterns in n-th subframe
The CQI instantaneous values of DMRS on width；Otherwise, the CQI of UE CRS on n-th subframe measuring system full bandwidth
Instantaneous value.
As shown in figure 3, corresponding with UE sides, in base station side, it is many that the embodiment of the present invention provides a kind of cooperation
In point communication, cqi CQI determines method, including：
S301, base station send schedule information to UE, and the schedule information includes the first information, the first information
For indicating that UE measures CQI instantaneous values, reports CQI instantaneous in the n-th+K subframe in n-th subframe
Value, n is positive integer, and K is preset value, and n-th subframe is that base station carries out multipoint cooperative transmission CoMP to UE
The subframe that mode dispatching is located；
S302, base station receive the CQI instantaneous values that UE is reported in the n-th+K subframe.
In the present embodiment, base station can also include the second information and/or the 3rd letter to the schedule information that UE sends
Breath, the second information are the scheduling bandwidth that base station carries out CoMP mode dispatchings in n-th subframe to UE, the
Three information are used to indicate the transmitting and scheduling that UE carries out BF patterns in n-th subframe.UE receives the scheduling
Concrete operations after information can be found in UE sides embodiment, and here is omitted.
Technical scheme with reference to shown in Fig. 2 and Fig. 3, illustrates a kind of cooperation provided in an embodiment of the present invention
In multi-point, cqi CQI determines method：
As shown in figure 4, base station is right in subframe #3D (subframe #3D represents No. 3 descending sub frames, below in the same manner)
UE carries out the scheduling of DPB patterns, and base station sends schedule information to UE, indicates UE in son in the schedule information
Frame #3D measures CQI instantaneous values and reports the CQI instantaneous value to base station in subframe #7U.UE is according to the tune
Degree information performs operation, i.e. UE and measures CQI instantaneous values and in subframe #7U on base station in subframe #3D
Report the CQI instantaneous values.
In DPB pattern transmitting procedures, TP1 sends useful signal to UE, and TP2 will not send interference signal,
The corresponding SINR3=S1/N of CQI instantaneous values that then UE is measured, and before the SINR3 cannot participate in subframe #3D
The CQI filtering of subframe, therefore the corresponding CQI instantaneous values of SINR3 of UE measurements afterwards and the UE in subframe #3D
Corresponding CoMP patterns are consistent.Optionally, in other subframes (being different from subframe #3D) base station to UE
When being also carried out the scheduling of DPB patterns, the CQI instantaneous values of subframe #3D that base station can be reported using UE are carried out
The selection of MCS in other subframes, so as to, while the precision of UE measurement CQI is strengthened, lifting edge and use
The handling capacity at family.
As shown in figure 5, base station carries out the scheduling of JT patterns in subframe #3D to UE, base station sends to UE and dispatches
Information, indicates in the schedule information that UE measures CQI instantaneous values and in subframe #7U to base in subframe #3D
Station reports the CQI instantaneous values.UE performs operation, i.e. UE according to the schedule information and measures CQI in subframe #3D
Instantaneous value and the CQI instantaneous value is reported to base station in subframe #7U.
In JT pattern transmitting procedures, TP1 and TP2 can send useful signal to UE, then the CQI of UE measurements
The corresponding SINR4=of instantaneous value (S1+S2)/N, and the SINR4 cannot participate in the subframe in front and back of subframe #3D
CQI filtering, therefore UE measurement the corresponding CQI instantaneous values of SINR4 with subframe #3D UE it is corresponding
CoMP patterns are consistent.Optionally, in other subframes (being different from subframe #3D), base station is also carried out to UE
During the scheduling of JT patterns, the CQI instantaneous values of subframe #3D that base station can be reported using UE carry out other subframes
Upper MCS is selected, so as to, while the precision of UE measurement CQI is strengthened, lift the handling capacity of edge customer.
By cqi CQI determination sides in a kind of coordinate multipoint communication provided in an embodiment of the present invention
Method, base station send schedule information to UE；Instructions of the UE according to the schedule information, measures n-th subframe
CQI instantaneous values, by the way of reporting aperiodic, i.e., CQI from the n-th+K subframes to base station reporting measurement
Instantaneous value, n-th subframe carry out the subframe at CoMP mode dispatchings place for base station to UE, due to the CQI
Instantaneous value is UE to be obtained based on the corresponding COMP patterns measurement of n-th subframe, and the CQI of UE measurements is instantaneous
Value COMP patterns corresponding with n-th subframe are consistent, therefore technical side provided in an embodiment of the present invention
Case can realize that UE reports under the corresponding COMP patterns of n-th subframe UE accurately CQI to base station.
Embodiment two
Based on above example, present invention also offers a kind of UE, the UE can be corresponding using Fig. 2
The method that embodiment is provided, refering to shown in Fig. 6, the UE 600 includes：Receiving unit 601, process are single
Unit 602 and transmitting element 603.
Receiving unit 601, for receiving the schedule information of base station transmission, schedule information includes the first information,
The first information is used to indicate that UE measures CQI instantaneous values, reports in the n-th+K subframe in n-th subframe
CQI instantaneous values, n is positive integer, and K is preset value, and n-th subframe carries out multiple spot association to UE for base station
Make to send the subframe that CoMP mode dispatchings are located；
Processing unit 602, for the schedule information received according to receiving unit 601, surveys in n-th subframe
Amount CQI instantaneous values；
Transmitting element 603, for the schedule information received according to receiving unit 601, in the n-th+K subframe
Processing unit 602 is reported to measure the CQI instantaneous values for obtaining to base station.
Optionally, schedule information also includes the second information, and the second information is for base station in n-th subframe to UE
Carry out the scheduling bandwidth of CoMP mode dispatchings；
Processing unit 602 n-th subframe measure CQI instantaneous values when, specifically for：
CQI instantaneous values under n-th subframe measurement scheduling bandwidth.
Optionally, schedule information also includes the 3rd information, and the 3rd information is used to indicate UE in n-th subframe
Carry out the transmitting and scheduling of wave beam forming BF patterns；
During CQI instantaneous value of the processing unit 602 under n-th subframe measurement scheduling bandwidth, specifically for：
The CQI of demodulated reference signal DMRS on scheduling bandwidth of n-th subframe measurement based on BF patterns
Instantaneous value.
Optionally, processing unit 602 n-th subframe measure CQI instantaneous values when, specifically for：
CQI instantaneous values under n-th subframe measuring system full bandwidth.
Optionally, schedule information also includes the 3rd information, and the 3rd information is used to indicate UE in n-th subframe
Carry out the transmitting and scheduling of wave beam forming BF patterns；
During CQI instantaneous value of the processing unit 602 under n-th subframe measuring system full bandwidth, specifically for：
The CQI of cell reference signals CRS on system full bandwidth of n-th subframe measurement based on BF patterns
Instantaneous value.
Based on above example, present invention also offers a kind of base station, the base station can be corresponding using Fig. 3
The method that embodiment is provided, refering to shown in Fig. 7, the base station 700 includes：Processing unit 701, transmission are single
Unit 702 and receiving unit 703.
Processing unit 701, for determining schedule information, schedule information includes the first information, and the first information is used
Measure CQI instantaneous values, CQI reported in the n-th+K subframe in n-th subframe in instruction user equipment UE
Instantaneous value, n is positive integer, and K is preset value, and n-th subframe carries out multipoint cooperative for base station and send out to UE
The subframe for sending CoMP mode dispatchings to be located；
Transmitting element 702, for the schedule information determined to UE transmission processes unit 701；
Receiving unit 703, for receiving the CQI instantaneous values that UE is reported in the n-th+K subframe.
Optionally, schedule information also includes the second information, and the second information is for base station in n-th subframe to UE
Carry out the scheduling bandwidth of CoMP mode dispatchings.
Optionally, schedule information also includes the 3rd information, and the 3rd information is used to indicate UE in n-th subframe
Carry out the transmitting and scheduling of wave beam forming BF patterns.
Based on above example, present invention also offers cqi CQI in a kind of communication of coordinate multipoint
Determine system, refering to shown in Fig. 8, the system 800 includes UE 801 and base station 802, wherein, the UE
To be and the UE identical equipment shown in Fig. 6, the base station is can be and the base station phase shown in Fig. 7
Same equipment.
It should be noted that being schematic to the division of unit in the embodiment of the present invention, only one kind is patrolled
Collect function to divide, when actually realizing, there can be other dividing mode.In addition, in each embodiment of the application
In each functional unit can be integrated in a processing unit in, or the independent physics of unit deposit
, it is also possible to two or more units are integrated in a unit.Above-mentioned integrated unit can both be adopted
Realized with the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If integrated unit using in the form of SFU software functional unit is realized and as independent production marketing or is made
Used time, can be stored in a computer read/write memory medium.Based on such understanding, the application's
Part that technical scheme is substantially contributed to prior art in other words or the whole of the technical scheme or
Part can be embodied in the form of software product, and the computer software product is stored in a storage medium
In, use including some instructions so that computer equipment (can be personal computer, server, or
Person's network equipment etc.) or processor (processor) perform whole or the portion of the application each embodiment method
Step by step.And aforesaid storage medium includes：USB flash disk, portable hard drive, read only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD
Etc. it is various can be with the medium of store program codes.
Based on above example, present invention also offers a kind of UE, the UE can adopt the corresponding realities of Fig. 2
The method that example offer is provided, can be and the UE identical equipment shown in Fig. 6.Refering to shown in Fig. 9, the UE
900 include：Transceiver 901, processor 902, bus 903 and memorizer 904, wherein：
Transceiver 901, processor 902 and memorizer 904 are connected with each other by bus 903；Bus 903
It can be Peripheral Component Interconnect standard (peripheral component interconnect, abbreviation PCI) bus
Or EISA (extended industry standard architecture, abbreviation EISA) bus
Deng.Bus can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, in Fig. 9 only
Represented with a thick line, it is not intended that only one bus or a type of bus.
Transceiver 901, for receiving the schedule information of base station transmission, schedule information includes the first information, the
One information is used to indicate that UE measures CQI instantaneous values, reports CQI in the n-th+K subframe in n-th subframe
Instantaneous value, n is positive integer, and K is preset value, and n-th subframe carries out multipoint cooperative for base station and send out to UE
The subframe for sending CoMP mode dispatchings to be located；
Processor 902, for the schedule information received according to transceiver 901, in n-th subframe measurement CQI
Instantaneous value；
Transceiver 901, is additionally operable to according to the schedule information for receiving, and reports place to base station in the n-th+K subframe
The CQI instantaneous values that the reason measurement of device 902 is obtained.
Optionally, schedule information also includes the second information, and the second information is for base station in n-th subframe to UE
Carry out the scheduling bandwidth of CoMP mode dispatchings；
Processor 902 in n-th subframe measurement CQI instantaneous values, specifically for：
CQI instantaneous values under n-th subframe measurement scheduling bandwidth.
Optionally, schedule information also includes the 3rd information, and the 3rd information is used to indicate UE in n-th subframe
Carry out the transmitting and scheduling of wave beam forming BF patterns；
During CQI instantaneous value of the processor 902 under n-th subframe measurement scheduling bandwidth, specifically for：
The CQI of demodulated reference signal DMRS on scheduling bandwidth of n-th subframe measurement based on BF patterns
Instantaneous value.
Optionally, processor 902 is in n-th subframe measurement CQI instantaneous values, specifically for：
CQI instantaneous values under n-th subframe measuring system full bandwidth.
Optionally, schedule information also includes the 3rd information, and the 3rd information is used to indicate UE in n-th subframe
Carry out the transmitting and scheduling of wave beam forming BF patterns；
During CQI instantaneous value of the processor 902 under n-th subframe measuring system full bandwidth, specifically for：
The CQI of cell reference signals CRS on system full bandwidth of n-th subframe measurement based on BF patterns
Instantaneous value.
The UE 900 also includes memorizer 904, for depositing program etc..Specifically, program can include
Program code, the program code include computer-managed instruction.Memorizer 904 may be deposited comprising random access memory
Reservoir (random access memory, RAM), it is also possible to also including nonvolatile memory
(non-volatile memory), for example, at least one disk memory.Processor 902 performs memorizer
904 application programs deposited, in realizing as above coordinate multipoint communication, CQI determines method.
Based on above example, present invention also offers a kind of base station, the base station can adopt the corresponding realities of Fig. 3
The method that example offer is provided, can be and the base station identical equipment shown in Fig. 7.Refering to shown in Figure 10, it is somebody's turn to do
Base station 1000 includes：Processor 1001, transceiver 1002, bus 1003 and memorizer 1004, its
In：
Processor 1001, transceiver 1002 and memorizer 1004 are connected with each other by bus 1003；Always
Line 1003 can be pci bus or eisa bus etc..Bus can be divided into address bus, data/address bus,
Controlling bus etc..For ease of representing, only represented with a thick line in Figure 10, it is not intended that only one
Bus or a type of bus.
Processor 1001, for determining schedule information, schedule information includes the first information, and the first information is used for
Instruction user equipment UE measures CQI instantaneous values, reports CQI in the n-th+K subframe in n-th subframe
Instantaneous value, n is positive integer, and K is preset value, and n-th subframe carries out multipoint cooperative for base station and send out to UE
The subframe for sending CoMP mode dispatchings to be located；
Transceiver 1002, for the schedule information determined to UE transmission processes device 1001；Receive UE to exist
The CQI instantaneous values that n-th+K subframe is reported.
Optionally, schedule information also includes the second information, and the second information is for base station in n-th subframe to UE
Carry out the scheduling bandwidth of CoMP mode dispatchings.
Optionally, schedule information also includes the 3rd information, and the 3rd information is used to indicate UE in n-th subframe
Carry out the transmitting and scheduling of wave beam forming BF patterns.
The base station 1000 also includes memorizer 1004, for depositing program etc..Specifically, program can be wrapped
Program code is included, the program code includes computer-managed instruction.Memorizer 1004 may include RAM,
It is likely to also include nonvolatile memory, for example, at least one disk memory.Processor 1001 is performed
The application program deposited by memorizer 1004, in realizing as above coordinate multipoint communication, CQI determines method.
In technical scheme provided in an embodiment of the present invention, base station sends schedule information to UE；UE is according to the tune
The instruction of degree information, measures the CQI instantaneous values of n-th subframe, by the way of reporting aperiodic, i.e., the
CQI instantaneous value of the n+K subframe to base station reporting measurement, n-th subframe carry out CoMP mould to UE for base station
The subframe that formula scheduling is located, as the CQI instantaneous values are UE based on the corresponding COMP patterns of n-th subframe
Measurement is obtained, and the CQI instantaneous values of UE measurements COMP patterns corresponding with n-th subframe are consistent,
Therefore technical scheme provided in an embodiment of the present invention can realize that UE reports n-th subframe UE correspondence to base station
COMP patterns under accurately CQI.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or knot
The form of the embodiment in terms of conjunction software and hardware.And, the present invention can be using wherein wrapping at one or more
Computer-usable storage medium containing computer usable program code (including but not limited to disk memory,
CD-ROM, optical memory etc.) on the form of computer program implemented.
The present invention be with reference to method according to embodiments of the present invention, equipment (system), and computer program produce
The flow chart and/or block diagram of product is describing.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or square frame and flow chart and/or the flow process in block diagram and/
Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedded
The processor of formula datatron or other programmable data processing devices is producing a machine so that by calculating
The instruction of the computing device of machine or other programmable data processing devices is produced for realizing in flow chart one
The device of the function of specifying in individual flow process or one square frame of multiple flow processs and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in and computer or other programmable datas process can be guided to set
In the standby computer-readable memory for working in a specific way so that be stored in the computer-readable memory
In instruction produce and include the manufacture of command device, the command device realization in one flow process of flow chart or
The function of specifying in one square frame of multiple flow processs and/or block diagram or multiple square frames.
These computer program instructions can be also loaded in computer or other programmable data processing devices, made
Obtain and series of operation steps is performed on computer or other programmable devices to produce computer implemented place
Reason, so as to the instruction performed on computer or other programmable devices is provided for realizing in flow chart one
The step of function of specifying in flow process or one square frame of multiple flow processs and/or block diagram or multiple square frames.
, but those skilled in the art once know base although preferred embodiments of the present invention have been described
This creative concept, then can make other change and modification to these embodiments.So, appended right will
Ask and be intended to be construed to include preferred embodiment and fall into the had altered of the scope of the invention and change.
Obviously, those skilled in the art can carry out various changes and modification and not take off to the embodiment of the present invention
From the scope of the embodiment of the present invention.So, if these modifications of the embodiment of the present invention and modification belong to this
Within the scope of bright claim and its equivalent technologies, then the present invention is also intended to exist comprising these changes and modification
It is interior.
Claims (17)
1. in a kind of coordinate multipoint communication, cqi CQI determines method, it is characterised in that include：
User equipment (UE) receives the schedule information that base station sends, and the schedule information includes the first information, institute
The first information is stated for indicating the UE in n-th subframe measurement CQI instantaneous values, in the n-th+K
Individual subframe reports the CQI instantaneous values, and the n is positive integer, and the K is preset value, and described n-th
Individual subframe is the subframe that the base station carries out that to the UE multipoint cooperative sends CoMP mode dispatchings place；
The UE measures CQI instantaneous values in n-th subframe, and the n-th+K subframes to
The base station reports the CQI instantaneous values.
2. the method for claim 1, it is characterised in that the schedule information is also including the second letter
Breath, second information to the UE carry out CoMP pattern tune in n-th subframe for the base station
The scheduling bandwidth of degree；
The UE measures CQI instantaneous values in n-th subframe, including：
The UE measures the CQI instantaneous values under the scheduling bandwidth in n-th subframe.
3. method as claimed in claim 2, it is characterised in that the schedule information is also including the 3rd letter
Breath, the 3rd information are used to indicate that the UE carries out wave beam forming BF patterns in n-th subframe
Transmitting and scheduling；
The UE measures the CQI instantaneous values under the scheduling bandwidth in n-th subframe, including：
Demodulation reference on scheduling bandwidths of the UE in n-th subframe measurement based on the BF patterns
The CQI instantaneous values of signal DMRS.
4. the method for claim 1, it is characterised in that the UE is in n-th subframe
Measurement CQI instantaneous values, including：
CQI instantaneous values of the UE under n-th subframe measuring system full bandwidth.
5. method as claimed in claim 4, it is characterised in that the schedule information is also including the 3rd letter
Breath, the 3rd information are used to indicate that the UE carries out wave beam forming BF patterns in n-th subframe
Transmitting and scheduling；
CQI instantaneous values of the UE under n-th subframe measuring system full bandwidth, including：
Cell ginseng on system full bandwidths of the UE in n-th subframe measurement based on the BF patterns
Examine the CQI instantaneous values of signal CRS.
6. in a kind of coordinate multipoint communication, cqi CQI determines method, it is characterised in that include：
Base station sends schedule information to user equipment (UE), and the schedule information includes the first information, and described the
One information is used to indicate the UE in n-th subframe measurement CQI instantaneous values, in the n-th+K subframe
Report the CQI instantaneous values, the n is positive integer, the K is preset value, n-th subframe is
The base station carries out multipoint cooperative and sends the subframe that CoMP mode dispatchings are located to the UE；
The base station receives the CQI instantaneous values that the UE is reported in the n-th+K subframe.
7. method as claimed in claim 6, it is characterised in that the schedule information is also including the second letter
Breath, second information to the UE carry out CoMP pattern tune in n-th subframe for the base station
The scheduling bandwidth of degree.
8. method as claimed in claims 6 or 7, it is characterised in that the schedule information also includes the
Three information, the 3rd information are used to indicate that the UE carries out wave beam forming BF in n-th subframe
The transmitting and scheduling of pattern.
9. a kind of user equipment (UE), it is characterised in that include：
Receiving unit, for receiving the schedule information of base station transmission, the schedule information includes the first information,
The first information is used to indicate the UE in n-th subframe measurement CQI instantaneous values, in the n-th+K
Individual subframe reports the CQI instantaneous values, and the n is positive integer, and the K is preset value, and described n-th
Individual subframe is the subframe that the base station carries out that to the UE multipoint cooperative sends CoMP mode dispatchings place；
Processing unit, it is for the schedule information received according to the receiving unit, sub at described n-th
Frame measures CQI instantaneous values；
Transmitting element, for the schedule information received according to the receiving unit, at the n-th+K
Subframe reports the CQI instantaneous values that the processing unit measurement obtains to the base station.
10. UE as claimed in claim 9, it is characterised in that the schedule information is also including the second letter
Breath, second information to the UE carry out CoMP pattern tune in n-th subframe for the base station
The scheduling bandwidth of degree；
The processing unit specifically for：
The CQI instantaneous values under the scheduling bandwidth are measured in n-th subframe.
11. UE as claimed in claim 10, it is characterised in that the schedule information is also including the 3rd letter
Breath, the 3rd information are used to indicate that the UE carries out wave beam forming BF patterns in n-th subframe
Transmitting and scheduling；
When the processing unit measures the CQI instantaneous values under the scheduling bandwidth in n-th subframe, tool
Body is used for：
The demodulated reference signal on scheduling bandwidth of n-th subframe measurement based on the BF patterns
The CQI instantaneous values of DMRS.
12. UE as claimed in claim 9, it is characterised in that the processing unit specifically for：
CQI instantaneous values under n-th subframe measuring system full bandwidth.
13. UE as claimed in claim 12, it is characterised in that the schedule information is also including the 3rd letter
Breath, the 3rd information are used to indicate that the UE carries out wave beam forming BF patterns in n-th subframe
Transmitting and scheduling；
During CQI instantaneous value of the processing unit under n-th subframe measuring system full bandwidth, specifically
For：
The cell reference signals on system full bandwidth of n-th subframe measurement based on the BF patterns
The CQI instantaneous values of CRS.
14. a kind of base stations, it is characterised in that include：
Processing unit, for determining schedule information, the schedule information includes the first information, first letter
Cease for instruction user equipment UE in n-th subframe measurement CQI instantaneous values, in the n-th+K subframe
Report the CQI instantaneous values, the n is positive integer, the K is preset value, n-th subframe is
The base station carries out multipoint cooperative and sends the subframe that CoMP mode dispatchings are located to the UE；
Transmitting element, for sending the schedule information that the processing unit determines to the UE；
Receiving unit, for receiving the CQI instantaneous values that the UE is reported in the n-th+K subframe.
15. base stations as claimed in claim 14, it is characterised in that the schedule information also includes second
Information, second information carry out CoMP pattern to the UE in n-th subframe for the base station
The scheduling bandwidth of scheduling.
16. base stations as described in claims 14 or 15, it is characterised in that the schedule information also includes
3rd information, the 3rd information are used to indicate that the UE carries out wave beam forming BF in n-th subframe
The transmitting and scheduling of pattern.
In a kind of 17. coordinate multipoint communications, cqi CQI determines system, including user equipment (UE)
And base station, it is characterised in that：
The UE includes the UE as described in claim 9 to 13 is arbitrary；
The base station includes the base station as described in claim 14 to 16 is arbitrary.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510624690.2A CN106559168B (en) | 2015-09-25 | 2015-09-25 | Channel quality indicator CQI determines system and method in cooperative multi-point communication |
| PCT/CN2016/087771 WO2017049981A1 (en) | 2015-09-25 | 2016-06-29 | Channel quality indicator determination system and method in coordinated multi-point communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510624690.2A CN106559168B (en) | 2015-09-25 | 2015-09-25 | Channel quality indicator CQI determines system and method in cooperative multi-point communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106559168A true CN106559168A (en) | 2017-04-05 |
| CN106559168B CN106559168B (en) | 2019-11-05 |
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| CN110049571A (en) * | 2018-01-16 | 2019-07-23 | 中国移动通信有限公司研究院 | A kind of channel quality transmission method, terminal and base station |
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| CN110049571A (en) * | 2018-01-16 | 2019-07-23 | 中国移动通信有限公司研究院 | A kind of channel quality transmission method, terminal and base station |
| CN110049571B (en) * | 2018-01-16 | 2022-10-21 | 中国移动通信有限公司研究院 | Channel quality transmission method, terminal and base station |
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| WO2017049981A1 (en) | 2017-03-30 |
| CN106559168B (en) | 2019-11-05 |
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