CN102118868B - Cell resources in cooperative measurement set during multipoint cooperative transmission mapping method and system - Google Patents
Cell resources in cooperative measurement set during multipoint cooperative transmission mapping method and system Download PDFInfo
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- CN102118868B CN102118868B CN200910266658.6A CN200910266658A CN102118868B CN 102118868 B CN102118868 B CN 102118868B CN 200910266658 A CN200910266658 A CN 200910266658A CN 102118868 B CN102118868 B CN 102118868B
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Abstract
The invention provides cell resources in cooperative measurement set during multipoint cooperative transmission mapping method and system, the method comprises: during Target cell transmitting channel state information reference signals in cooperation measuring assembly, the portion of time frequency resources of other community in the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding sends data in described cooperation measuring assembly.Other community described refers to all communities in described cooperation measuring assembly except Target cell, or, be cell portion in the community in described cooperation measuring assembly except Target cell.The present invention maintains the orthogonal design of the CSI-RS of different districts, the estimated quality that mobile terminal estimates cooperation cell channel state information reference signals can be improved by not sending data on the resource element of cooperation cell channel state information reference signals, by sending data on the resource element position of cooperation cell channel state information reference signals, can improve throughput of system.
Description
Technical field
The present invention relates to wireless communication system, relate to cell resources in cooperative measurement set during multipoint cooperative transmission mapping method and system particularly.
Background technology
In order to improve the throughput of community, carry out the interference coordination of minizone, new generation of wireless communication system is as advanced long-term evolution system (Long-Term Evolution advance, be called for short LTE-Advance), senior international wireless communication system (International Mobile Telecommunication advance, be called for short IMT-Advance) etc. all introduce cooperation transmission technology between network level (Coordinate MultipointTransmission and Reception is called for short COMP).
At third generation partner program (3rd Generation Partnership Project, be called for short 3GPP) define two kinds of pilot tones of LTE-Advanced system in LTE56 meeting, i.e. channel state information reference signals (Channel State Information-Reference Signals, be called for short CSI-RS) and demodulated reference signal (Demodulation Reference Signals, be called for short DMRS), wherein specify that channel state information reference signals is cell-specific (cell-specific), and channel state information reference signals distributes more sparse relative to demodulation pilot frequency on running time-frequency resource.The channel state information reference signals of LTE-Advanced system can not only support that mobile terminal measures the channel on the every root antenna port in this community, and in order to support that COMP technology can also measure the CSI-RS of each community in measuring assembly.In order to measurement result is more accurate to try one's best close to real channel, the CSI-RS of each community should quadrature arrangement.
In order to improve the measurement quality of channel measurement, motion is had to propose in prior art, when certain Target cell transmitting channel state information reference signals, other communities of measuring assembly do not send any signal on the running time-frequency resource of this Target cell transmitting channel state information reference signals, and this mode obviously reduces throughput of system.
Summary of the invention
The technical problem to be solved in the present invention is to provide cell resources in cooperative measurement set during multipoint cooperative transmission mapping method and system, improves the message transmission rate of system.
In order to solve the problem, the invention provides cell resources in cooperative measurement set during multipoint cooperative transmission mapping method, comprise: during Target cell transmitting channel state information reference signals in cooperation measuring assembly, the portion of time frequency resources of other community in the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding sends data in described cooperation measuring assembly.
Further, said method also has following characteristics:
During Target cell transmitting channel state information reference signals in described cooperation measuring assembly, in described cooperation measuring assembly, other community only sends data at the part physical Resource Block of running time-frequency resource corresponding to the channel state information reference signals of described Target cell.
Further, said method also has following characteristics:
In cooperation measuring assembly other community only in the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding odd number index Physical Resource Block on send the data of this community, or, in cooperation measuring assembly other community only in the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding even number index Physical Resource Block on send the data of this community.
Further, said method also has following characteristics:
When taking multiple OFDM symbol in the Physical Resource Block of the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding, in cooperation measuring assembly, other community resource element that only part OFDM symbol is corresponding in the Physical Resource Block of running time-frequency resource corresponding to the channel state information reference signals of described Target cell sends the data of this community.
Further, said method also has following characteristics:
When taking multiple resource element in the Physical Resource Block that each path channels state information reference signals of described Target cell is corresponding, in cooperation measuring assembly, other community only in the Physical Resource Block that each path channels state information reference signals of described Target cell is corresponding, part resource element sends data.
Further, said method also has following characteristics:
Cooperation measuring assembly in Target cell transmitting channel state information reference signals time, when in the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding, on part resource element, other community does not send data, other community described during transmitting channel state information reference signals, sends after carrying out power amplification to this channel state information reference signals on the resource element adjacent with described part resource element.
Further, said method also has following characteristics:
Described cooperation measuring assembly is that community is exclusive.
Further, said method also has following characteristics:
Other community described refers to all communities in described cooperation measuring assembly except Target cell, or, be cell portion in the community in described cooperation measuring assembly except Target cell.
In order to solve the problem, present invention also offers cell resources in cooperative measurement set during multipoint cooperative transmission mapped system, comprise base station, described base station, the portion of time frequency resources in the running time-frequency resource that the Target cell transmitting channel state information reference signals in cooperation set is corresponding sends data.
Further, said system also has following characteristics:
Described base station, also sends data for the part physical Resource Block only at running time-frequency resource corresponding to the channel state information reference signals of described Target cell; Concrete, only in the running time-frequency resource that the described channel state information reference signals of described Target cell is corresponding odd number index Resource Block on or even number index Resource Block on send the data of this community.
Further, said system also has following characteristics:
Described base station, when taking multiple OFDM symbol in the Physical Resource Block also for running time-frequency resource corresponding to the channel state information reference signals of Target cell, the resource element that only part OFDM symbol is corresponding in the Physical Resource Block of running time-frequency resource corresponding to the channel state information reference signals of described Target cell sends the data of this community.
Further, said system also has following characteristics:
Described base station, time also for taking multiple resource element in Physical Resource Block corresponding to each the path channels state information reference signals in described Target cell, only part resource element sends the data of this community in the Physical Resource Block that each path channels state information reference signals of described Target cell is corresponding.
Further, said system also has following characteristics:
Described base station, when also part resource element not sending the data of this community in the running time-frequency resource that the described channel state information reference signals in described Target cell is corresponding, on the resource element adjacent with described part resource element during transmitting channel state information reference signals, send after power amplification is carried out to this channel state information reference signals.
Further, said system also has following characteristics:
Described cooperation measuring assembly is that community is exclusive.
In order to improve the channel estimation quality of channel state information reference signals, according to the present invention, propose the method for resource mapping when considering channel state information reference signals re-used across cells.Terminal can utilize measures actual interference with the channel state information reference signals of the data overlap of cooperation cell, utilizes the RE only sending CSI-RS to improve the estimated quality of cooperation cell channel state information reference signals.
By means of the present invention, maintain the orthogonal design of the CSI-RS of different districts, the estimated quality that mobile terminal estimates cooperation cell channel state information reference signals can be improved by not sending data on the resource element of cooperation cell channel state information reference signals, can by sending data on the resource element position of cooperation cell channel state information reference signals, rational estimation interference, compare the method all not sending out data on the resource element of neighbor cell transmitting channel state information reference signals, can throughput of system be improved.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the method that local resource maps in cell cooperative measuring assembly of cooperating in embodiment in measuring assembly;
Fig. 2 is the example schematic diagram of the method for resource mapping in embodiment;
Fig. 3 (a), Fig. 3 (b) are the schematic diagrames of the method for resource mapping in embodiment one;
Fig. 4 (a), Fig. 4 (b), Fig. 4 (c), Fig. 4 (d) are the schematic diagrames of the method for resource mapping in embodiment two;
Fig. 5 (a), Fig. 5 (b), Fig. 5 (c), Fig. 5 (d) are the schematic diagrames of the method for resource mapping in embodiment three;
Fig. 6 is the example schematic diagram of launching after supporting CSI-RS power amplification in embodiment.
Fig. 7 is the example schematic diagram of the method for resource mapping in specific embodiment.
Embodiment
In the present invention, cell resources in cooperative measurement set during multipoint cooperative transmission mapped system, comprises base station, controls by base station the transmission of each cell data in cooperation measuring assembly.
Described base station, the portion of time frequency resources in the running time-frequency resource that the Target cell transmitting channel state information reference signals in cooperation set is corresponding sends data.
In one embodiment, described base station, sends data for the part physical Resource Block only at running time-frequency resource corresponding to the channel state information reference signals of described Target cell; Concrete, only in the running time-frequency resource that the described channel state information reference signals of described Target cell is corresponding odd number index Resource Block on or even number index Resource Block on send the data of this community.
In another embodiment, described base station, when taking multiple OFDM symbol in the Physical Resource Block for running time-frequency resource corresponding to the channel state information reference signals of Target cell, the resource element that only part OFDM symbol is corresponding in the Physical Resource Block of running time-frequency resource corresponding to the channel state information reference signals of described Target cell sends the data of this community.
In another embodiment, described base station, during for taking multiple resource element in the Physical Resource Block that each the path channels state information reference signals in described Target cell is corresponding, only part resource element sends the data of this community in the Physical Resource Block that each path channels state information reference signals of described Target cell is corresponding.
When the present invention relates to signal power amplifieroperation, described base station, when also part resource element not sending the data of this community in the running time-frequency resource that the described channel state information reference signals in described Target cell is corresponding, on the resource element adjacent with described part resource element during transmitting channel state information reference signals, send after power amplification is carried out to this channel state information reference signals.
As shown in Figure 1, the method that community in measuring assembly sends data that cooperates in embodiment comprises: during Target cell transmitting channel state information reference signals in cooperation measuring assembly, in described cooperation measuring assembly, the portion of time frequency resources of other community in the running time-frequency resource that the described channel state information reference signals of described Target cell is corresponding sends data, in the running time-frequency resource that described channel state information reference signals is corresponding, other running time-frequency resource does not send any signal, and described cooperation measuring assembly is that community is exclusive, namely the cooperation measuring assembly needing data to dodge for all users in allocated resource Shang Gai community is identical.
In the present invention, in cooperation measuring assembly, other community refers to all communities in described cooperation measuring assembly except Target cell, or, be cell portion in the community in described cooperation measuring assembly except Target cell.
Schematic diagram as shown in Figure 2.
Such as, comprise community 1, community 2 and community 3 in cooperation measuring assembly.Subframe 0 is the resource of community 1 for transmitting channel state information reference signals.When community 1 is in subframe 0 during transmitting channel state information reference signals, community 2 and community 3 send data (in figure, namely the latticed part of subframe 0 correspondence represents the part resource element of subframe 0) on the part resource element of subframe 0, and other resource element does not send signal (in figure, namely the white space part of subframe 0 correspondence represents other resource element in subframe 0).Terminal can utilize measures actual interference with the channel state information reference signals of the cooperation cell of data overlap, the resource element only sending CSI-RS is utilized to improve the estimated quality of cooperation cell channel state information reference signals, compare the method all not sending out data on the corresponding resource element of neighbor cell transmitting channel state information reference signals, can throughput of system be improved.
Embodiment one:
Cooperation measuring assembly in Target cell transmitting channel state information reference signals time, other community only sends data at the part physical Resource Block of running time-frequency resource corresponding to the channel state information reference signals of described Target cell in described cooperation measuring assembly, and other Physical Resource Block does not send any data.
The selection of part physical Resource Block can be distinguished with the parity types of call number.Concrete, cooperation measuring assembly in Target cell transmitting channel state information reference signals time, in cooperation measuring assembly other community only in the running time-frequency resource that the described channel state information reference signals of described Target cell is corresponding odd number index Resource Block on send the data of this community, the Resource Block of even number index does not send any signal, comprises the data of this community.Or, cooperation measuring assembly in Target cell transmitting channel state information reference signals time, in cooperation measuring assembly other community only in the running time-frequency resource that the described channel state information reference signals of described Target cell is corresponding even number index Resource Block on send the data of this community, the Resource Block of odd number index does not send any signal, comprises the data of this community.
As shown in Figure 3 a, community 1, community 2, community 3 is comprised in cooperation measuring assembly time long.Community 1 sends CSI-RS in a certain subframe, and community 2, in this sub-frame resources, odd number index Resource Block sends data, and even number index Resource Block does not send data; Community 3, in this sub-frame resources, even number index Resource Block sends data, and odd number index Resource Block does not send data.The Resource Block that in figure, grid is filled represents that community sends the Resource Block of data, and blank Resource Block represents that community does not send the Resource Block of data.
Except above-mentioned with except the mode of odd even index differentiation, can also be one group with three Resource Block, the resource that community 1 sends CSI-RS is divided into multiple groups.The Resource Block in community 2 and community 3 centre position in each Resource Block group sends data, two Resource Block often organizing non-intermediate positions do not send data.As shown in Figure 3 b.Certainly, can also be the Resource Block in community 2 and community 3 centre position in each Resource Block group does not send data, two Resource Block often organizing non-intermediate positions send data.After the expansion of this thinking, 3 can also be more than or equal to X(X) individual Resource Block is one group, the resource that community 1 sends CSI-RS is divided into multiple groups, the Resource Block of community 2 and community 3 same position in each Resource Block group sends data, the Resource Block of other position does not send data.
Embodiment two:
When taking multiple resource element in the Physical Resource Block that each path channels state information reference signals of Target cell is corresponding, in cooperation measuring assembly, other community only in the Physical Resource Block that each path channels state information reference signals of described Target cell is corresponding, part resource element sends data, and other resource element of this Physical Resource Block does not send any signal.
Generally, 2 resource elements are taken in the Physical Resource Block that each path channels state information reference signals of Target cell is corresponding.
Such as, when running time-frequency resource corresponding to each path channels state information reference signals of Target cell comprises two resource elements in each Physical Resource Block, in cooperation measuring assembly, the resource element of other community in each Physical Resource Block of running time-frequency resource corresponding to the described channel state information reference signals of described Target cell sends the data of this community, another resource element does not send data.
Assuming that cooperation measuring assembly comprises community 1, community 2, community 3, community 4.
Shown in Fig. 4 a is the mapping pattern of 8 tunnels (namely represent 8 antenna ports) channel state information reference signals of a Resource Block small area 1, the channel state information reference signals resource of community 1 comprises in figure the resource element R0 to R7 having point-like to fill, and namely R0 represents two resource elements that the 1st path channels state information reference signals is corresponding.When community 1 sends CSI-RS on this Resource Block, a resource element of other community every path channels state information reference signals in this Resource Block in cooperation measuring assembly sends the data of this community, another corresponding resource element does not send any signal of this community.As shown in Figure 4 b, the community 2 in cooperation measuring assembly, community 3, the resource element that community 4 has oblique line to fill in fig. 4b does not send any signal.
Shown in Fig. 4 c is the mapping pattern of 4 tunnels (namely represent 8 antenna ports) channel state information reference signals of a Resource Block small area 1, the channel state information reference signals resource of community 1 comprises in figure the resource element R0 to R3 having point-like to fill, and namely R0 represents two resource elements that the 1st path channels state information reference signals is corresponding.When community 1 sends CSI-RS on this Resource Block, a resource element of other community every path channels state information reference signals in this Resource Block in cooperation measuring assembly sends the data of this community, another corresponding resource element does not send any signal of this community.As shown in figure 4d, the community 2 in cooperation measuring assembly, community 3, the resource element that community 4 has oblique line to fill in figure 4d does not send any signal.
In the present embodiment, when taking multiple OFDM symbol in the Physical Resource Block of the running time-frequency resource that the channel state information reference signals of Target cell is corresponding, in cooperation measuring assembly, other community resource element that only part OFDM symbol is corresponding in the Physical Resource Block of running time-frequency resource corresponding to the channel state information reference signals of described Target cell sends the data of this community.
Generally, 2 OFDM symbols are taken in the Physical Resource Block of the running time-frequency resource that the channel state information reference signals of Target cell is corresponding.Such as, in Fig. 4 d, community 1 takies the resource element in the 6th OFDM symbol and the 11st OFDM symbol in this Resource Block.Each resource element that community 2,3,4 the 6th OFDM symbol in this Resource Block is corresponding sends data, the 11st resource element that OFDM symbol is corresponding does not send data.
Embodiment three:
In embodiment three, implementation method is identical with embodiment two, but the mapping pattern of the channel state information reference signals of community 1 Resource Block is different.
As shown in Figure 5 a, the mapping pattern of 8 tunnels (namely representing 8 antenna ports) channel state information reference signals of shown is a Resource Block small area 1, the channel state information reference signals resource of community 1 comprises in figure the resource element R0 to R7 having point-like to fill, frequency domain interval and the time interval of the mapping pattern channel state information reference signals of each cooperation cell are constant, and the orthogonal sequence of particular location or pilot tone can be different.When community 1 sends CSI-RS on this Resource Block, a resource element of other community every path channels state information reference signals in this Resource Block in cooperation measuring assembly sends the data of this community, another corresponding resource element does not send any signal of this community.As shown in Figure 5 b, the community 2 in cooperation measuring assembly, community 3, the resource element that community 4 has oblique line to fill in figure 5b does not send any signal.
Shown in Fig. 5 c is the mapping pattern of 4 tunnels (namely represent 8 antenna ports) channel state information reference signals of a Resource Block small area 1, and the channel state information reference signals resource of community 1 comprises in figure the resource element R0 to R3 having point-like to fill.The channel state information reference signals of each cooperation cell can carry out the horizontal shift of frequency domain, and mapping pattern is slightly different.As fig 5d, the community 2 in cooperation measuring assembly, community 3, the resource element that community 4 has oblique line to fill in figure 5d does not send any signal.
In the present invention, the implementation sent after also supporting that power amplification is carried out to CSI-RS.Cooperation measuring assembly in Target cell transmitting channel state information reference signals time, when in the running time-frequency resource that the described channel state information reference signals of described Target cell is corresponding, on part resource element, other community does not send data, other community described during transmitting channel state information reference signals, sends after carrying out power amplification to this channel state information reference signals on the resource element adjacent with described part resource element.
Assuming that the community transmitting channel state information reference signals in a subframe in cooperation measuring assembly.As shown in Figure 6.The resource element that in figure, 145 degree of oblique lines are filled represent carry out power amplification after the resource element that transmits, the resource element of 45 degree of oblique line fillings represents the resource element transmitted not carrying out power amplification, and the resource element that grid is filled represents the resource element being not used in and sending data.
Community 1, the 1st of the 6th symbol the, 5,8,12 subcarriers sends the R1(first via CSI-RS of community 1), R2, R3, R0; At the 2nd of the 6th symbol, 9 subcarriers do not send any signal, and the transmitted power of this RE " is lent " the 5th, 12 subcarriers, namely the 5th, the CSI-RS on 12 subcarriers carries out power amplification, 1st, the CSI-RS on 8 subcarriers keeps original transmitting power; At the 2nd, 4,9 of the 11 symbol, 11 subcarriers send the R3 of the CSI-RS of community 1, R0, R1, R2, the 5th, 12 subcarriers of the 11 symbol do not send any signal, and the transmitted power of this RE " is lent " the 2nd, 9 subcarriers, namely the 2nd, the CSI-RS on 9 subcarriers carries out power amplification, 4th, the CSI-RS on 11 subcarriers keeps original transmitting power.
Community 2 in cooperation measuring assembly is at the 2nd, 4,9 of the 6th symbol, 11 subcarriers send the R3 of the CSI-RS of community 2, R0, R1, R2, at the 5th of the 6th symbol, 12 subcarriers does not send any signal, and the transmitted power of this RE " is lent " the 2nd, 9 subcarriers, namely the 2nd, the CSI-RS on 9 subcarriers carries out power amplification, 4th, the CSI-RS on 11 subcarriers keeps original transmitting power; At the 1st, 5,8 of the 11 symbol, 12 subcarriers send the R1 of the CSI-RS of community 1, R2, R3, R0, the 2nd, 9 subcarriers of the 11 symbol do not send any signal, and the transmitted power of this RE " is lent " the 5th, 12 subcarriers, namely the 5th, the CSI-RS on 12 subcarriers carries out power amplification, 1st, the CSI-RS on 8 subcarriers keeps original transmitting power.
Said method, when a community transmitting channel measuring state information reference signal, the correspondence position of other community physical resource does not send any signal, and the power of this blank resource element " is lent " adjacent resource element for transmitting channel state information reference signals, to the power amplification of this channel state information reference signals.
The cooperation measuring assembly of the present invention's definition, can in certain specific sub-frame, or only a part of cooperation cell is carried out data to the channel measurement pilot frequency that Target cell sends and dodged on specific RB, the channel measurement pilot frequency that other cooperation cell send Target cell in other subframe or RB carries out data and dodges.The all cooperation measuring assembly in such as community is community 1, community 2, community 3, community 4, community 5, as shown in Figure 7, the Resource Block that in figure, half grid is filled represents that community sends data in the corresponding physical resource upper part resource of Target cell channel measurement pilot frequency, part resource do not send data Resource Block, the Resource Block that white is filled represents that community sends the Resource Block of data.
When sending CSI-RS in Target cell, in cooperation measuring assembly, in other community, cell portion can send part in the corresponding physics resource location of CSI-RS and send data in Target cell, and part does not send data, concrete:
In the subframe 0 of the radio frames of even number index, when community 1 sends CSI-RS, community 2 and community 3 send part in the corresponding physics resource location of CSI-RS and send data in community 1, part does not send data; Community 4 and community 5 send in the corresponding physics resource location of CSI-RS in community 1 and still all send data.
In the subframe 0 of the radio frames of odd number index, when community 1 sends CSI-RS, community 1, community 4 and community 5 send part in the corresponding physics resource location of CSI-RS and send data in community 1, part does not send data; Community 2 and community 3 send in the corresponding physics resource location of CSI-RS in community 1 and still all send data.
When sending CSI-RS in Target cell, in cooperation measuring assembly, in other community, all communities all can send part in the corresponding physics resource location of CSI-RS and send data in Target cell, and part does not send data, concrete:
When community 3 sends CSI-RS, in cooperation measuring assembly, other community and community 1, community 2, community 4 and Jun community, community 53 send part in the corresponding physics resource location of CSI-RS and send data, and part does not send data.
Certainly, when sending CSI-RS in Target cell, in cooperation measuring assembly, all communities can also send in the corresponding physics resource location of CSI-RS in Target cell and all send data or all do not send any data in other community.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. cell resources in cooperative measurement set during multipoint cooperative transmission mapping method, is characterized in that,
Cooperation measuring assembly in Target cell transmitting channel state information reference signals time, in described cooperation measuring assembly, the portion of time frequency resources of other community in the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding sends data, other running time-frequency resource in the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding does not send data.
2. the method for claim 1, is characterized in that,
During Target cell transmitting channel state information reference signals in described cooperation measuring assembly, in described cooperation measuring assembly, other community only sends data at the part physical Resource Block of running time-frequency resource corresponding to the channel state information reference signals of described Target cell.
3. method as claimed in claim 2, is characterized in that,
In cooperation measuring assembly other community only in the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding odd number index Physical Resource Block on send the data of this community, or,
In cooperation measuring assembly other community only in the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding even number index Physical Resource Block on send the data of this community.
4. the method for claim 1, is characterized in that,
When taking multiple OFDM symbol in the Physical Resource Block of the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding, in cooperation measuring assembly, other community resource element that only part OFDM symbol is corresponding in the Physical Resource Block of running time-frequency resource corresponding to the channel state information reference signals of described Target cell sends the data of this community.
5. the method for claim 1, is characterized in that,
When taking multiple resource element in the Physical Resource Block that each path channels state information reference signals of described Target cell is corresponding, in cooperation measuring assembly, other community only in the Physical Resource Block that each path channels state information reference signals of described Target cell is corresponding, part resource element sends data.
6. the method as described in claim 1,2,3,4 or 5, is characterized in that,
Cooperation measuring assembly in Target cell transmitting channel state information reference signals time, when in the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding, on part resource element, other community does not send data, other community described during transmitting channel state information reference signals, sends after carrying out power amplification to this channel state information reference signals on the resource element adjacent with described part resource element.
7. the method as described in claim 1,2,3,4 or 5, is characterized in that,
Described cooperation measuring assembly is that community is exclusive.
8. the method as described in claim 1,2,3,4 or 5, is characterized in that,
Other community described refers to all communities in described cooperation measuring assembly except Target cell, or, be cell portion in the community in described cooperation measuring assembly except Target cell.
9. cell resources in cooperative measurement set during multipoint cooperative transmission mapped system, comprises base station, it is characterized in that,
Described base station, portion of time frequency resources in the running time-frequency resource that the Target cell transmitting channel state information reference signals in cooperation measuring assembly is corresponding sends data, other running time-frequency resource in the running time-frequency resource that the channel state information reference signals of described Target cell is corresponding does not send data.
10. system as claimed in claim 9, is characterized in that,
Described base station, also sends data for the part physical Resource Block only at running time-frequency resource corresponding to the channel state information reference signals of described Target cell; Concrete, only in the running time-frequency resource that the described channel state information reference signals of described Target cell is corresponding odd number index Resource Block on or even number index Resource Block on send the data of this community.
11. systems as claimed in claim 9, is characterized in that,
Described base station, when taking multiple OFDM symbol in the Physical Resource Block also for running time-frequency resource corresponding to the channel state information reference signals of Target cell, the resource element that only part OFDM symbol is corresponding in the Physical Resource Block of running time-frequency resource corresponding to the channel state information reference signals of described Target cell sends the data of this community.
12. systems as claimed in claim 9, is characterized in that,
Described base station, time also for taking multiple resource element in Physical Resource Block corresponding to each the path channels state information reference signals in described Target cell, only part resource element sends the data of this community in the Physical Resource Block that each path channels state information reference signals of described Target cell is corresponding.
13. systems as described in claim 9,10,11 or 12, is characterized in that,
Described base station, when also part resource element not sending the data of this community in the running time-frequency resource that the described channel state information reference signals in described Target cell is corresponding, on the resource element adjacent with described part resource element during transmitting channel state information reference signals, send after power amplification is carried out to this channel state information reference signals.
14. systems as described in claim 9,10,11 or 12, is characterized in that,
Described cooperation measuring assembly is that community is exclusive.
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| CN200910266658.6A CN102118868B (en) | 2009-12-31 | 2009-12-31 | Cell resources in cooperative measurement set during multipoint cooperative transmission mapping method and system |
| PCT/CN2010/078155 WO2011079642A1 (en) | 2009-12-31 | 2010-10-27 | Method, system and base station for mapping cell resources |
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| CN200910266658.6A CN102118868B (en) | 2009-12-31 | 2009-12-31 | Cell resources in cooperative measurement set during multipoint cooperative transmission mapping method and system |
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| CN102932111B (en) * | 2011-08-10 | 2017-04-12 | 中兴通讯股份有限公司 | Reporting method and device for wireless channel state indicator |
| CN103067118A (en) * | 2011-10-18 | 2013-04-24 | 华为技术有限公司 | Method for realizing data transmission and apparatus thereof |
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