CN104023405A - Data transmission method, device and system - Google Patents

Data transmission method, device and system Download PDF

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Publication number
CN104023405A
CN104023405A CN201410280349.5A CN201410280349A CN104023405A CN 104023405 A CN104023405 A CN 104023405A CN 201410280349 A CN201410280349 A CN 201410280349A CN 104023405 A CN104023405 A CN 104023405A
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data
piece
channel
terminal
base station
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CN104023405B (en
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赵慧
杨居沃
王文博
吴斌
周小平
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Institute of Microelectronics of CAS
Beijing University of Posts and Telecommunications
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Institute of Microelectronics of CAS
Beijing University of Posts and Telecommunications
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Abstract

The invention discloses a data transmission method, device and system. The problem that in the prior art, a blind interference alignment treatment method is low in adaptability is solved. According to the method, channel dependences of a first terminal and a second terminal are identical on three resource blocks; a first base station and a second base station repeatedly transmit first data on the third resource block; the first terminal obtains the first data according to a signal received on the third resource block; the second terminal determines a first differential value which is obtained by subtracting the signal received on the third resource block from a signal received on the second resource block; according to the first differential value and a signal received on the first resource block, second data and third data are obtained. Through the method, people only need to select the two terminals identical in channel dependence for pairing, the blind interference alignment method is adopted for receiving the data, and because the number of the terminals identical in channel dependence is large, the method can effectively improve the adaptability of the blind interference alignment treatment method.

Description

A kind of data transmission method, Apparatus and system
Technical field
The application relates to communication technical field, relates in particular to a kind of data transmission method, Apparatus and system.
Background technology
At present; in order to improve the utilance of frequency resource; conventionally (frequency duplex factor as one is less frequency duplex factor as one can be reduced to 1; multiplex distance is less; namely use the distance between the community of same frequency resources less); make neighbor cell use identical frequency resource, this also can bring and between neighbor cell, occur the serious problem interfering with each other.
In order to reduce the phase mutual interference between neighbor cell, conventionally adopt following three kinds of methods:
The first, interference randomization method.The method is mainly that different pseudo noise codes is planned in different districts, while sending data, adopt corresponding pseudo noise code to carry out scrambling, or different interlacing patterns is planned in different districts, interference signal from other communities is carried out to randomization at time-frequency domain, make receiving terminal the interference signal of other communities can be approximately to white noise processing in the time receiving useful signal.
The second, interference coordination or avoiding method.The running time-frequency resource that the main Shi Duige of the method community is used limits, and avoids neighbor cell to use identical running time-frequency resource, to reduce presence of intercell interference, comprises soft-frequency reuse and compensation power control etc.
The third, interference elimination method.The method is mainly to adopt multipoint cooperative, the differentiation in time domain, frequency domain, He Ma territory, spatial domain is carried out in base station to interference signal, receiving terminal adopts Digital Signal Processing to remove the interference signal component receiving in signal, comprises that joint transmission, cooperative beam are shaped, auxiliary interference elimination and Restrainable algorithms etc. Network Based.
But, because the phase mutual interference between neighbor cell is mainly the interference of the signal Dui Zhe community of adjacent cell transmission, and the signal that adjacent cell sends is not white noise after all, signal in cell edge its power Yu Zhe community is suitable, therefore, adopt first method can reduce signal to noise ratio, anti-jamming effectiveness is not good.And second method neighbor cell can not be used identical running time-frequency resource, therefore reduce the utilance of frequency resource.The third method, due to needs multipoint cooperative, therefore needs to share between neighbor cell the information of many necessity, has increased overhead.
In order to improve signal to noise ratio, improve the utilance of frequency resource, reduce overhead, available technology adopting blind interference registration process method is eliminated the interference of minizone.Illustrate blind interference registration process method of the prior art below.
Suppose that base station 1 and base station 2 are base stations of adjacent Liang Ge community, for identical three the time/frequency source block O1 of these two base station assigns, O2, O3, wherein, O1 is different from O2 frequency domain and time domain is identical, O2 is identical with O3 frequency domain and time domain is adjacent, : be at the same time in the each terminal in the signal cover of base station 1 and base station 2, select two terminals that meet specified requirements, these two terminals meet: the channel of terminal 1 on O1 has strong correlation with the channel on O2, but the channel on O2 is uncorrelated with the channel on O3, the channel of terminal 2 on O2 has strong correlation with the channel on O3, but the channel on O1 is uncorrelated with the channel on O2.
Suppose that the channel of terminal 1 on O1 and O2 is H 1[1], the channel on O3 is H 1[2]; The channel of terminal 2 on O1 is H 2[1], the channel on O2 and O3 is H 2[2]: base station 1 sends data to two terminals respectively on O1 and O3 with on O2, send base station 2 sends data to two terminals respectively on O1 and O3 with on O2, send wherein, represent the data that need to be received by terminal j that sent by base station i, the signal that terminal 1 and terminal 2 receive on O1, O2, O3 as shown in Figure 1.
Fig. 1 is the reception signal schematic representation of terminal 1 and terminal 2 in blind interference registration process method of the prior art, and in Fig. 1, transverse axis represents time domain, and the longitudinal axis represents frequency domain, and the signal that terminal 1 receives on O1 is the signal receiving on O2 is Y 1 ( O 2 ) = H 1 [ 1 ] ( x 1 1 + x 1 2 ) + H 1 [ 1 ] ( x 2 1 + x 2 2 ) , The signal receiving on O3 is Y 1 ( O 3 ) = H 1 [ 2 ] ( x 1 1 + x 1 2 ) ; The signal that terminal 2 receives on O1 is the signal receiving on O2 is Y 2 ( O 2 ) = H 2 [ 2 ] ( x 1 1 + x 1 2 ) + H 2 [ 2 ] ( x 2 1 + x 2 2 ) , The signal receiving on O3 is Y 2 ( O 3 ) = H 2 [ 2 ] ( x 1 1 + x 1 2 ) .
Thereby, for terminal 1, the signal Y receiving on O2 by it 1(O2) subtract the signal Y that it receives on O1 1(O1) can obtain equation again by this equation and its signal Y receiving on O3 1(O3) simultaneous Y 1 ( O 2 ) - Y 1 ( O 1 ) = H 1 [ 1 ] ( x 1 1 + x 1 2 ) Y 1 ( O 3 ) = H 1 [ 2 ] ( x 1 1 + x 1 2 ) Can solve the useful signal of terminal 1 with
Similarly, for terminal 2, the signal Y receiving on O2 by it 2(O2) subtract the signal Y that it receives on O3 2(O3) can obtain equation again by this equation and its signal Y receiving on O1 2(O1) simultaneous Y 2 ( O 2 ) - Y 2 ( O 3 ) = H 2 [ 2 ] ( x 2 1 + x 2 2 ) Y 2 ( O 1 ) = H 2 [ 1 ] ( x 2 1 + x 2 2 ) Can solve the useful signal of terminal 2 with
But, although above-mentioned blind interference registration process method of the prior art can improve signal to noise ratio and frequency efficiency, under the prerequisite of reduction overhead, realize the elimination of presence of intercell interference, but, the prerequisite that realizes this blind interference registration process method is can select two terminals that meet specified requirements (, with O1, O2, just in time contrary two terminals of the correlation of O3, as above the terminal 1 in example and terminal 2), this prerequisite is the range of application of the blind interference registration process method of restriction prior art greatly, also be, the applicability of the blind interference registration process method of prior art is lower.
Continuing above example describes for example; need to select and just in time contrary terminal 1 and terminal 2 of the correlation of O1, O2, O3; for terminal 1; need it to be in the wireless environment that frequency domain is smooth; but its translational speed is very fast; for terminal 2, need it to be in the more wireless environment of multipath, but its translational speed is very slow.But, in actual applications, two terminals so simultaneously serviced probability are very low, therefore, while adopting the blind interference registration process method of prior art in practical application, often be difficult to select two terminals of terminal 1 and terminal 2 in as above example, thereby limited the range of application of blind interference registration process method.
Summary of the invention
The embodiment of the present application provides a kind of data transmission method, Apparatus and system, in order to solve the lower problem of applicability of blind interference registration process method of the prior art.
A kind of data transmission method for uplink that the embodiment of the present application provides, be the first base station three Resource Block identical with the second base station assigns, wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent, and described method comprises:
Selection meets first terminal and second terminal of specified requirements, wherein, the channel of described first terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described first terminal on Secondary resource piece is relevant to the channel on information resources piece, the channel of described the second terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of described the second terminal on Secondary resource piece is relevant to the channel on information resources piece;
Described the first base station sends the first data to first terminal and the second terminal on information resources piece, sends the first data and the second data sum on Secondary resource piece, sends the second data on first resource piece;
Described the second base station sends the first data to first terminal and the second terminal on information resources piece, sends the first data and the 3rd data sum on Secondary resource piece, sends the 3rd data on first resource piece;
Wherein, described the first data are data that described first terminal will receive, and described the second data and described the 3rd data are data that described the second terminal will receive.
A kind of data receive method that the embodiment of the present application provides, first terminal and the second terminal are at first resource piece, Secondary resource piece, on information resources piece, receive the signal that the first base station and the second base station send, wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent, the channel of described first terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described first terminal on Secondary resource piece is relevant to the channel on information resources piece, the channel of described the second terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described the second terminal on Secondary resource piece is relevant to the channel on information resources piece, what on described information resources piece, carry is the first data of described the first base station transmission and the first data that described the second base station sends, what on described Secondary resource piece, carry is the first data of described the first base station transmission and the first data and the 3rd data sum of the second data sum and described the second base station transmission, and what on described first resource piece, carry is the second data of described the first base station transmission and the 3rd data that described the second base station sends, wherein, described the first data are data that described first terminal will receive, and described the second data and described the 3rd data are data that described the second terminal will receive, and described method comprises:
Described first terminal is according to described first terminal from the channel on information resources piece, and the signal that receives on information resources piece of described first terminal, obtains the first data;
Described the second terminal determines that described the second terminal subtracts the first difference of the signal receiving on information resources piece from the signal receiving on Secondary resource piece;
The signal that described the second terminal receives from the channel on first resource piece and Secondary resource piece, described the first difference, described the second terminal according to described the second terminal on first resource piece, obtains the second data and the 3rd data.
A kind of data Transmission system that the embodiment of the present application provides, comprise the first base station and the second base station, for described the first base station three Resource Block identical with described the second base station assigns, wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent, and described system comprises:
Described the first base station or described the second base station selected first terminal and the second terminal that meets specified requirements, wherein, the channel of described first terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described first terminal on Secondary resource piece is relevant to the channel on information resources piece, the channel of described the second terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of described the second terminal on Secondary resource piece is relevant to the channel on information resources piece;
Described the first base station is used for, and on information resources piece, sends the first data to first terminal and the second terminal, sends the first data and the second data sum on Secondary resource piece, sends the second data on first resource piece;
Described the second base station is used for, and on information resources piece, sends the first data to first terminal and the second terminal, sends the first data and the 3rd data sum on Secondary resource piece, sends the 3rd data on first resource piece;
Wherein, described the first data are data that described first terminal will receive, and described the second data and described the 3rd data are data that described the second terminal will receive.
A kind of base station that the embodiment of the present application provides, described base station is used three Resource Block to send data, and wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent, and described base station comprises:
Select module, for selecting to meet first terminal and second terminal of specified requirements, wherein, the channel of described first terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described first terminal on Secondary resource piece is relevant to the channel on information resources piece, the channel of described the second terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of described the second terminal on Secondary resource piece is relevant to the channel on information resources piece;
Sending module for send the first data to first terminal and the second terminal on information resources piece, sends the first data and the second data sum on Secondary resource piece, sends the second data on first resource piece;
Wherein, the 3rd data that described first resource piece also sends for carrying another base station, the first data and the 3rd data sum that described Secondary resource piece also sends for carrying described another base station, the first data that described information resources piece also sends for carrying described another base station, described the first data are data that described first terminal will receive, and described the second data and described the 3rd data are data that described the second terminal will receive.
A kind of data sink that the embodiment of the present application provides, on first resource piece, Secondary resource piece, information resources piece, receive the signal that the first base station and the second base station send, wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent, the channel of described device on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of described device on Secondary resource piece is relevant to the channel on information resources piece; What on described information resources piece, carry is the first data of described the first base station transmission and the first data that described the second base station sends, what on described Secondary resource piece, carry is the first data of described the first base station transmission and the first data and the 3rd data sum of the second data sum and described the second base station transmission, and what on described first resource piece, carry is the second data of described the first base station transmission and the 3rd data that described the second base station sends; Wherein, described the first data are data that described device will receive, or described the second data and described the 3rd data are data that described device will receive, and described device comprises:
Receiver module, the signal sending on first resource piece, Secondary resource piece and information resources piece for receiving the first base station and the second base station;
Parsing module, for when described the first data be described device to receive data time, the channel according to described device on information resources piece, and the signal that receives on information resources piece of described receiver module, obtain the first data; Or, when described the second data and described the 3rd data be described device to receive data time, determine that signal that described receiver module receives on Secondary resource piece subtracts the first difference of the signal receiving on information resources piece, the signal that channel according to described device on first resource piece and Secondary resource piece, described the first difference, described receiver module receive on first resource piece, obtains the second data and the 3rd data.
The embodiment of the present application provides a kind of data transmission method, Apparatus and system, the method the first base station and the second base station are used three identical Resource Block, first terminal is identical with the channel relevancy of the second terminal on these three Resource Block, the first base station sends the first data on information resources piece, on Secondary resource piece, send the first data and the second data sum, on first resource piece, send the second data, the second base station sends the first data on information resources piece, on Secondary resource piece, send the first data and the 3rd data sum, on first resource piece, send the 3rd data, first terminal is according to signal acquisition the first data that receive from the channel on information resources piece and on information resources piece, the second terminal is determined the first difference that subtracts the signal receiving on Secondary resource piece from the signal receiving on information resources piece, according to from the channel on first resource piece and Secondary resource piece, described the first difference, the signal receiving on first resource piece, obtain the second data and the 3rd data.Pass through said method, only need to select two terminals that channel relevancy is identical matches, and adopt blind interference alignment schemes to receive data, because the quantity of the identical terminal of channel relevancy in practical application is much larger than the quantity of the contrary terminal of channel relevancy, therefore, said method can effectively improve the applicability of blind interference registration process method.
Brief description of the drawings
Accompanying drawing described herein is used to provide further understanding of the present application, forms the application's a part, and the application's schematic description and description is used for explaining the application, does not form the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the reception signal schematic representation of terminal 1 and terminal 2 in blind interference registration process method of the prior art;
The data transmission procedure that Fig. 2 provides for the embodiment of the present application;
The DRP data reception process that Fig. 3 provides for the embodiment of the present application;
The data Transmission system structural representation that Fig. 4 provides for the embodiment of the present application;
The architecture of base station schematic diagram that Fig. 5 provides for the embodiment of the present application;
The data sink structural representation that Fig. 6 provides for the embodiment of the present application.
Embodiment
Owing to will using blind interference registration process method in prior art, precondition is exactly just in time contrary two terminals of correlation of selecting the channel on three Resource Block, and the probability that such terminal occurs in outdoor scene application scenarios is lower simultaneously, therefore reduce the applicability of blind interference registration process method.The embodiment of the present application has been improved blind interference registration process method of the prior art, as long as two identical terminals of the correlation that makes it select the channel on three Resource Block just can be used, thereby can effectively improve the applicability of blind interference registration process method.
For making the application's object, technical scheme and advantage clearer, below in conjunction with the application's specific embodiment and corresponding accompanying drawing, present techniques scheme is clearly and completely described.Obviously, described embodiment is only some embodiments of the present application, instead of whole embodiment.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the application's protection.
In the improved blind interference registration process method providing in the embodiment of the present application, still need two base stations (hereinafter referred to as the first base station and the second base station) to combine transmission data, and receive data by two terminals (hereinafter referred to as first terminal and the second terminal), wherein, be the first base station three Resource Block identical with the second base station assigns in advance, first resource piece O1 is different from the frequency domain of Secondary resource piece O2, time domain is identical, Secondary resource piece O2 is identical with the frequency domain of information resources piece O3, time domain is adjacent, the method that the first base station and the second base station send data to first terminal and the second terminal as shown in Figure 2.
Fig. 2 is the data transmission procedure that the embodiment of the present application provides, and specifically comprises the following steps:
S201: first terminal and the second terminal of selecting to meet specified requirements.
Wherein, the channel of first terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of first terminal on Secondary resource piece is relevant to the channel on information resources piece, the channel of the second terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of the second terminal on Secondary resource piece is relevant to the channel on information resources piece.Also, in the embodiment of the present application, the correlation of first terminal and the second terminal channel on three Resource Block is identical.And for same terminal, if the channel of this terminal on certain Resource Block is relevant to the channel on another Resource Block, the channel of this terminal on this Resource Block is identical with the channel on another Resource Block.
In the embodiment of the present application, can be by the first base station or the second base station selected first terminal and the second terminal that goes out to meet above-mentioned specified requirements, concrete, the first terminal and the second terminal that meet above-mentioned specified requirements in the each terminal in the signal cover in this first base station and the second base station, are selected at the same time in the first base station or the second base station.
S202: the first base station sends the first data to first terminal and the second terminal on information resources piece sends the first data and the second data sum on Secondary resource piece, sends the second data on first resource piece.
S203: the second base station sends the first data to first terminal and the second terminal on information resources piece sends the first data and the 3rd data sum on Secondary resource piece, sends the 3rd data on first resource piece.
Wherein, the execution sequence of step S202 and S203 in no particular order, can be carried out simultaneously.
In the embodiment of the present application, the first data are data that first terminal will receive, and the second data and the 3rd data are data that the second terminal will receive.That is to say, for first terminal, the first base station and the second base station be actually on information resources piece, repeat sent its first required data twice to first terminal.As shown in table 1.
Table 1
From table 1, that the first base station and the second base station send at information resources piece O3 is all first required data x of first terminal 1, be equivalent to repeat to have sent twice, and for the second required data of the second terminal with the 3rd data do not repeat to send.
Accordingly, based on above-mentioned data transmission method for uplink, the method that first terminal and the second terminal receive the data that the first base station and the second base station send as shown in Figure 3.
Fig. 3 is the DRP data reception process that the embodiment of the present application provides, and specifically comprises the following steps:
S301: first terminal is according to first terminal from the channel on information resources piece, and the signal that receives on information resources piece of first terminal, obtains the first data.
For first terminal, the first base station on information resources piece is designated as to the channel of first terminal on information resources piece, the second base station is designated as to the channel of first terminal the signal that first terminal receives on information resources piece is therefore, first terminal arrives the channel of first terminal according to the first base station on information resources piece and on information resources piece the second base station to the channel of first terminal it is solvable equation thereby obtain the first data x 1.Wherein, the channel of first terminal on information resources piece comprises: on information resources piece, the first base station is to the channel of first terminal with the channel of the second base station on information resources piece to first terminal
S302: the second terminal determines that the second terminal subtracts the first difference of the signal receiving on information resources piece from the signal receiving on Secondary resource piece.
S303: the signal that the second terminal receives from the channel on first resource piece and Secondary resource piece, the first difference, the second terminal according to the second terminal on first resource piece, obtains the second data and the 3rd data.
For the second terminal, the first base station on first resource piece is designated as to the channel of the second terminal on first resource piece, the second base station is designated as to the channel of the second terminal on Secondary resource piece and information resources piece, the first base station is designated as to the channel of the second terminal on Secondary resource piece and information resources piece, the second base station is designated as to the channel of the second terminal also,, because the channel of the second terminal on Secondary resource piece is relevant to the channel on information resources piece, therefore the channel of the second terminal on Secondary resource piece is identical with the channel on information resources piece.:
The signal that the second terminal receives on Secondary resource piece is the signal that the second terminal receives on information resources piece is , in step S302, the first difference that the second terminal is determined is the signal that this first difference and the second terminal receive on first resource piece Y 2 ( O 1 ) = H 2 1 [ 1 ] x 2 1 + H 2 2 [ 1 ] x 2 2 Simultaneous can obtain equation group Y 2 ( O 2 ) - Y 2 ( O 3 ) = H 2 1 [ 2 ] x 2 1 + H 2 2 [ 2 ] x 2 2 Y 2 ( O 1 ) = H 2 1 [ 1 ] x 2 1 + H 2 2 [ 1 ] x 2 2 , Thereby, the second terminal basis and the first difference Y 2(O2)-Y 2(O3) the signal Y, receiving on first resource piece 2(O1), get final product solving equations Y 2 ( O 2 ) - Y 2 ( O 3 ) = H 2 1 [ 2 ] x 2 1 + H 2 2 [ 2 ] x 2 2 Y 2 ( O 1 ) = H 2 1 [ 1 ] x 2 1 + H 2 2 [ 1 ] x 2 2 , And then acquisition the second data with the 3rd data wherein, the channel of the second terminal on first resource piece comprises: on first resource piece, the first base station is to the channel of the second terminal with the second base station on first resource piece to the channel of the second terminal the second terminal comprises from the channel on Secondary resource piece: on Secondary resource piece, the first base station is to the channel of the second terminal with the second base station on Secondary resource piece to the channel of the second terminal the second terminal comprises from the channel on information resources piece: on information resources piece, the first base station is to the channel of the second terminal with the second base station on information resources piece to the channel of the second terminal
Wherein, first terminal is received and resolves execution moment of the first data and the second terminal and received and resolved by step S302, S303 the execution moment order in no particular order of the second data and the 3rd data by step S301.
Visible, by above-mentioned data transmission method for uplink as shown in Figure 2 and corresponding data receive method as shown in Figure 3, base station can be chosen in two identical terminals of correlation of three channels on Resource Block, and adopt above-mentioned improved blind interference registration process method to carry out the transmission of data, because the quantity of the terminal that in practical application scene, channel relevancy is identical is much larger than the quantity of the contrary terminal of channel relevancy, therefore, said method can effectively improve the applicability of blind interference registration process method.
Further, due in practical application scene, the signal that first terminal and the second terminal receive on three resources are fast can be subject to the impact of noise, therefore, for first terminal, the first data of the signal acquisition only receiving on information resources piece according to it may be inaccurate, therefore, in the embodiment of the present application, first terminal can be first according to this first terminal from the channel on information resources piece, and the signal that receives on information resources piece of first terminal, obtain the first alternative data, also be, the first data that the signal receiving on information resources piece according to it is obtained are temporarily as the first alternative data, determine that again first terminal subtracts the second difference of the signal receiving on information resources piece from the signal receiving on Secondary resource piece, according to first terminal from the channel on first resource piece and Secondary resource piece, the second difference, the signal that first terminal receives on first resource piece, obtain the second data and the 3rd data, according to first terminal from the signal receiving on Secondary resource piece, first terminal is from the second data and described the 3rd data of the channel on Secondary resource piece and acquisition, obtain the second alternative data, finally according to the first alternative data and second alternative data acquisition the first data.
Concrete, the signal that first terminal receives on information resources piece according to it channel and channel solve an equation and obtained x 1=x 1' after, by the value x obtaining 1' as the first alternative data.
The first base station on Secondary resource piece and information resources piece is designated as to the channel of first terminal the second base station on Secondary resource piece and information resources piece is designated as to the channel of first terminal also,, because the channel of first terminal on Secondary resource piece is relevant to the channel on information resources piece, therefore the channel of first terminal on Secondary resource piece is identical with the channel on information resources piece.:
The signal that first terminal receives on Secondary resource piece according to first terminal and the signal receiving on information resources are fast Y 1 ( O 3 ) = H 1 1 [ 2 ] x 1 + H 1 2 [ 2 ] x 1 Determine the second difference Y 1 ( O 2 ) - Y 1 ( O 3 ) = H 1 1 [ 2 ] x 2 1 + H 1 2 [ 2 ] x 2 2 , The signal receiving on first resource piece with first terminal again simultaneous can obtain equation group Y 1 ( O 2 ) - Y 1 ( O 3 ) = H 1 1 [ 2 ] x 2 1 + H 1 2 [ 2 ] x 2 2 Y 1 ( O 1 ) = H 1 1 [ 1 ] x 2 1 + H 1 2 [ 1 ] x 2 2 , First terminal is according to channel channel channel channel and the second difference Y 1(O2)-Y 1(O3) the signal Y, receiving on first resource piece 1(O1), get final product solving equations Y 1 ( O 2 ) - Y 1 ( O 3 ) = H 1 1 [ 2 ] x 2 1 + H 1 2 [ 2 ] x 2 2 Y 1 ( O 1 ) = H 1 1 [ 1 ] x 2 1 + H 1 2 [ 1 ] x 2 2 Obtain the second data with the 3rd data obtain the second data with the 3rd data after, first terminal can be according to formula Y 1 ( O 2 ) - H 1 1 [ 2 ] x 2 1 - H 1 2 [ 2 ] x 2 2 = H 1 1 [ 2 ] x 1 + H 1 2 [ 2 ] x 1 Solve x 1=x 1", by x 1" as the second alternative data.Wherein, the channel of first terminal on first resource piece comprises: on first resource piece, the first base station is to the channel of first terminal with the channel of the second base station on first resource piece to first terminal first terminal comprises from the channel on Secondary resource piece: on Secondary resource piece, the first base station is to the channel of first terminal with the channel of the second base station on Secondary resource piece to first terminal
Finally, first terminal is according to the first alternative data x obtaining 1' and the second alternative data x 1", obtain the first data x 1.Concrete, first terminal can be to the first alternative data x 1' and the second alternative data x 1" carry out verification, and alternative data correct check results are defined as to the first data.If the check results of the first alternative data and the second alternative data is correctly, can be optional one as the first data, if the first alternative data and the second alternative data only have a check results for correct, be that correct alternative data are as the first data using check results, if the check results of the first alternative data and the second alternative data is mistake, first terminal receives the first data failure, can ask base station to retransmit the first data.
Further, the above-mentioned improved blind interference registration process method providing due to the embodiment of the present application is terminal quantity based on the channel relevancy on three resources are fast is identical in practical application scene much larger than the quantity of the contrary terminal of channel relevancy, and in practical application scene, inevitably there will be the situation of two terminals that channel relevancy is contrary, therefore, in order further to improve data transmission quality, in the embodiment of the present application, improved blind interference registration process method and blind interference registration process method of the prior art that base station also can be used the embodiment of the present application to provide simultaneously, , two terminals are selected according to the channel information of terminal to report in base station, if the channel relevancy of two terminals selecting on three Resource Block is identical, the improved blind interference registration process method transmission data that use the embodiment of the present application to provide, if the channel relevancy of two terminals selecting on three resources are fast is contrary, can use blind interference registration process method transmission data of the prior art.
The data transmission method providing for the embodiment of the present application above, based on same thinking, the application also provides a kind of data Transmission system, a kind of base station and a kind of data sink, as shown in Fig. 4, Fig. 5, Fig. 6.
Fig. 4 is the data Transmission system structural representation that the embodiment of the present application provides, and specifically comprises:
The first base station 401 and the second base station 402, for described the first base station 401 and described the second base station 402 distributing three identical Resource Block, wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, and Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent;
First terminal and second terminal of specified requirements selected to meet in described the first base station 401 or described the second base station 402, wherein, the channel of described first terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described first terminal on Secondary resource piece is relevant to the channel on information resources piece, the channel of described the second terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of described the second terminal on Secondary resource piece is relevant to the channel on information resources piece;
Described the first base station 401 for, on information resources piece, send the first data to first terminal and the second terminal, on Secondary resource piece, send the first data and the second data sum, on first resource piece, send the second data;
Described the second base station 402 for, on information resources piece, send the first data to first terminal and the second terminal, on Secondary resource piece, send the first data and the 3rd data sum, on first resource piece, send the 3rd data;
Wherein, described the first data are data that described first terminal will receive, and described the second data and described the 3rd data are data that described the second terminal will receive.
Fig. 5 is the architecture of base station schematic diagram that the embodiment of the present application provides, and specifically comprises:
Described base station is used three Resource Block to send data, and wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, and Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent;
Select module 501, for selecting to meet first terminal and second terminal of specified requirements, wherein, the channel of described first terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described first terminal on Secondary resource piece is relevant to the channel on information resources piece, the channel of described the second terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of described the second terminal on Secondary resource piece is relevant to the channel on information resources piece;
Sending module 502 for send the first data to first terminal and the second terminal on information resources piece, sends the first data and the second data sum on Secondary resource piece, sends the second data on first resource piece;
Wherein, the 3rd data that described first resource piece also sends for carrying another base station, the first data and the 3rd data sum that described Secondary resource piece also sends for carrying described another base station, the first data that described information resources piece also sends for carrying described another base station, described the first data are data that described first terminal will receive, and described the second data and described the 3rd data are data that described the second terminal will receive.
Fig. 6 is the data sink structural representation that the embodiment of the present application provides, and specifically comprises:
On first resource piece, Secondary resource piece, information resources piece, receive the signal that the first base station and the second base station send, wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent, the channel of described device on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of described device on Secondary resource piece is relevant to the channel on information resources piece; What on described information resources piece, carry is the first data of described the first base station transmission and the first data that described the second base station sends, what on described Secondary resource piece, carry is the first data of described the first base station transmission and the first data and the 3rd data sum of the second data sum and described the second base station transmission, and what on described first resource piece, carry is the second data of described the first base station transmission and the 3rd data that described the second base station sends; Wherein, described the first data are data that described device will receive, or described the second data and described the 3rd data are data that described device will receive;
Receiver module 601, the signal sending on first resource piece, Secondary resource piece and information resources piece for receiving the first base station and the second base station;
Parsing module 602, for when described the first data be described device to receive data time, the channel according to described device on information resources piece, and the signal that receives on information resources piece of described receiver module 601, obtain the first data; Or, when described the second data and described the 3rd data be described device to receive data time, determine that signal that described receiver module 601 receives on Secondary resource piece subtracts the first difference of the signal receiving on information resources piece, the signal that channel according to described device on first resource piece and Secondary resource piece, described the first difference, described receiver module 601 receive on first resource piece, obtains the second data and the 3rd data.
Described parsing module 602 specifically for, when described the first data be described device to receive data time, channel according to described device on information resources piece, and the signal that receives on information resources piece of described receiver module 601, obtain the first alternative data, determine that signal that described receiver module 601 receives on Secondary resource piece subtracts the second difference of the signal receiving on information resources piece, channel according to described device on first resource piece and Secondary resource piece, described the second difference, the signal that described receiver module 601 receives on first resource piece, obtain the second data and the 3rd data, the signal receiving on Secondary resource piece according to described receiver module 601, the channel of described device on Secondary resource piece and described the second data and described the 3rd data of acquisition, obtain the second alternative data, according to described the first alternative data and described second alternative data acquisition the first data.
Described parsing module 602 specifically for, according to formula obtain the first alternative data x 1=x 1', wherein, Y 1(O3) represent the signal that described receiver module 601 receives on information resources piece, O3 represents information resources piece, x 1represent the first data, be illustrated in the channel to described device of the first base station on information resources piece, be illustrated in the channel to described device of the second base station on information resources piece, x 1' represent by formula the x solving 1value be the first alternative data x 1', the channel of described device on information resources piece comprises: on information resources piece the first base station to the channel of described device and on information resources piece the second base station to the channel of described device; According to formula Y 1 ( O 2 ) - Y 1 ( O 3 ) = H 1 1 [ 2 ] x 2 1 + H 1 2 [ 2 ] x 2 2 Y 1 ( O 1 ) = H 1 1 [ 1 ] x 2 1 + H 1 2 [ 1 ] x 2 2 Obtain the second data with the 3rd data wherein, Y 1(O2) represent the signal that described receiver module 601 receives on Secondary resource piece, Y 1 ( O 2 ) = H 1 1 [ 2 ] ( x 2 1 + x 1 ) + H 1 2 [ 2 ] ( x 2 2 + x 1 ) , O2 represents Secondary resource piece, be illustrated in the channel to described device of the first base station on Secondary resource piece, be illustrated in the channel to described device of the second base station on Secondary resource piece, Y 1(O1) represent the signal that described receiver module 601 receives on first resource piece, O1 represents first resource piece, be illustrated in the channel to described device of the first base station on first resource piece, be shown in the channel to described device of the second base station on first resource piece; The channel of described device on first resource piece comprises: on first resource piece the first base station to the channel of described device and on first resource piece the second base station to the channel of described device; The channel of described device on Secondary resource piece comprises: on Secondary resource piece the first base station to the channel of described device and on Secondary resource piece the second base station to the channel of described device; The channel of described device on Secondary resource piece is identical with the channel of described device on information resources piece; According to formula Y 1 ( O 2 ) - H 1 1 [ 2 ] x 2 1 - H 1 2 [ 2 ] x 2 2 = H 1 1 [ 2 ] x 1 + H 1 2 [ 2 ] x 1 Obtain the second alternative data x 1=x 1", wherein, x 1" represent by formula Y 1 ( O 2 ) - H 1 1 [ 2 ] x 2 1 - H 1 2 [ 2 ] x 2 2 = H 1 1 [ 2 ] x 1 + H 1 2 [ 2 ] x 1 The x solving 1value be the second alternative data x 1".
Described parsing module 602 specifically for, when described the second data and described the 3rd data be described device to receive data time, according to formula Y 1 ( O 2 ) - Y 1 ( O 3 ) = H 1 1 [ 2 ] x 2 1 + H 1 2 [ 2 ] x 2 2 Y 1 ( O 1 ) = H 1 1 [ 1 ] x 2 1 + H 1 2 [ 1 ] x 2 2 Obtain the second data with the 3rd data wherein, Y 1(O3) represent the signal that described receiver module 601 receives on information resources piece, O3 represents information resources piece, y 2(O2) represent the signal that described receiver module 601 receives on Secondary resource piece, Y 1 ( O 2 ) = H 1 1 [ 2 ] ( x 2 1 + x 1 ) + H 1 2 [ 2 ] ( x 2 2 + x 1 ) , O2 represents Secondary resource piece, Y 1(O1) represent the signal that described receiver module 601 receives on first resource piece, O1 represents first resource piece, x 1represent the first data, be illustrated in the channel to described device of the first base station on information resources piece, be illustrated in the channel to described device of the second base station on information resources piece, on Secondary resource piece, the first base station is identical to the channel of described device with the first base station on information resources piece to the channel of described device, on Secondary resource piece, the second base station is identical to the channel of described device with the second base station on information resources piece to the channel of described device be illustrated in the channel to described device of the first base station on first resource piece, be shown in the channel to described device of the second base station on first resource piece; The channel of described device on first resource piece comprises: on first resource piece the first base station to the channel of described device and on first resource piece the second base station to the channel of described device; The channel of described device on Secondary resource piece comprises: on Secondary resource piece the first base station to the channel of described device and on Secondary resource piece the second base station to the channel of described device; The channel of described device on information resources piece comprises: on information resources piece the first base station to the channel of described device and on information resources piece the second base station to the channel of described device.
Concrete above-mentioned data sink as shown in Figure 6 can be arranged in terminal.
The embodiment of the present application provides a kind of data transmission method, Apparatus and system, the method the first base station and the second base station are used three identical Resource Block, first terminal is identical with the channel relevancy of the second terminal on these three Resource Block, the first base station sends the first data on information resources piece, on Secondary resource piece, send the first data and the second data sum, on first resource piece, send the second data, the second base station sends the first data on information resources piece, on Secondary resource piece, send the first data and the 3rd data sum, on first resource piece, send the 3rd data, first terminal is according to signal acquisition the first data that receive from the channel on information resources piece and on information resources piece, the second terminal is determined the first difference that subtracts the signal receiving on Secondary resource piece from the signal receiving on information resources piece, according to from the channel on first resource piece and Secondary resource piece, described the first difference, the signal receiving on first resource piece, obtain the second data and the 3rd data.Pass through said method, only need to select two terminals that channel relevancy is identical matches, and adopt blind interference alignment schemes to receive data, because the quantity of the identical terminal of channel relevancy in practical application is much larger than the quantity of the contrary terminal of channel relevancy, therefore, said method can effectively improve the applicability of blind interference registration process method.
In a typical configuration, computing equipment comprises one or more processors (CPU), input/output interface, network interface and internal memory.
Internal memory may comprise the volatile memory in computer-readable medium, and the forms such as random access memory (RAM) and/or Nonvolatile memory, as read-only memory (ROM) or flash memory (flash RAM).Internal memory is the example of computer-readable medium.
Computer-readable medium comprises that permanent and impermanency, removable and non-removable media can realize information storage by any method or technology.Information can be module or other data of computer-readable instruction, data structure, program.The example of the storage medium of computer comprises, but be not limited to phase transition internal memory (PRAM), static RAM (SRAM), dynamic random access memory (DRAM), the random access memory (RAM) of other types, read-only memory (ROM), Electrically Erasable Read Only Memory (EEPROM), fast flash memory bank or other memory techniques, read-only optical disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette tape, the storage of tape magnetic rigid disk or other magnetic storage apparatus or any other non-transmission medium, can be used for the information that storage can be accessed by computing equipment.According to defining herein, computer-readable medium does not comprise temporary computer readable media (transitory media), as data-signal and the carrier wave of modulation.
Also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, commodity or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, commodity or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, commodity or the equipment that comprises described key element and also have other identical element.
The embodiment that it will be understood by those skilled in the art that the application can be provided as method, system or computer program.Therefore, the application can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the application can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The embodiment that the foregoing is only the application, is not limited to the application.To those skilled in the art, the application can have various modifications and variations.Any amendment of doing within all spirit in the application and principle, be equal to replacement, improvement etc., within all should being included in the application's claim scope.

Claims (11)

1. a data transmission method for uplink is the first base station three Resource Block identical with the second base station assigns, wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent, it is characterized in that, comprising:
Selection meets first terminal and second terminal of specified requirements, wherein, the channel of described first terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described first terminal on Secondary resource piece is relevant to the channel on information resources piece, the channel of described the second terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of described the second terminal on Secondary resource piece is relevant to the channel on information resources piece;
Described the first base station sends the first data to first terminal and the second terminal on information resources piece, sends the first data and the second data sum on Secondary resource piece, sends the second data on first resource piece;
Described the second base station sends the first data to first terminal and the second terminal on information resources piece, sends the first data and the 3rd data sum on Secondary resource piece, sends the 3rd data on first resource piece;
Wherein, described the first data are data that described first terminal will receive, and described the second data and described the 3rd data are data that described the second terminal will receive.
2. a data receive method, first terminal and the second terminal are at first resource piece, Secondary resource piece, on information resources piece, receive the signal that the first base station and the second base station send, wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent, it is characterized in that, the channel of described first terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described first terminal on Secondary resource piece is relevant to the channel on information resources piece, the channel of described the second terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described the second terminal on Secondary resource piece is relevant to the channel on information resources piece, what on described information resources piece, carry is the first data of described the first base station transmission and the first data that described the second base station sends, what on described Secondary resource piece, carry is the first data of described the first base station transmission and the first data and the 3rd data sum of the second data sum and described the second base station transmission, and what on described first resource piece, carry is the second data of described the first base station transmission and the 3rd data that described the second base station sends, wherein, described the first data are data that described first terminal will receive, and described the second data and described the 3rd data are data that described the second terminal will receive, and described method comprises:
Described first terminal is the channel on information resources piece according to described first terminal, and the signal that receives on information resources piece of described first terminal, obtains the first data;
Described the second terminal determines that described the second terminal subtracts the first difference of the signal receiving on information resources piece from the signal receiving on Secondary resource piece;
Described the second terminal signal that the channel on first resource piece and Secondary resource piece, described the first difference, described the second terminal receive on first resource piece according to described the second terminal, obtains the second data and the 3rd data.
3. method as claimed in claim 2, is characterized in that, described first terminal is the channel on information resources piece according to described first terminal, and the signal that receives on information resources piece of described first terminal, obtains the first data, specifically comprises:
Described first terminal is the channel on information resources piece according to described first terminal, and the signal that receives on information resources piece of described first terminal, obtains the first alternative data;
Described first terminal determines that described first terminal subtracts the second difference of the signal receiving on information resources piece from the signal receiving on Secondary resource piece;
The described first terminal signal that the channel on first resource piece and Secondary resource piece, described the second difference, described first terminal receive on first resource piece according to described first terminal, obtains the second data and the 3rd data;
Described first terminal, according to described the second data and described the 3rd data of the described first terminal channel on Secondary resource piece and acquisition from the signal receiving on Secondary resource piece, described first terminal, obtains the second alternative data;
According to described the first alternative data and described second alternative data acquisition the first data.
4. method as claimed in claim 3, is characterized in that, obtains the first alternative data, specifically comprises:
Described first terminal is according to formula obtain the first alternative data x 1=x 1', wherein, Y 1(O3) represent the signal that first terminal receives on information resources piece, O3 represents information resources piece, x 1represent the first data, be illustrated in the channel of the above first base station of information resources piece to first terminal, be illustrated in the channel of the above second base station of information resources piece to first terminal, x 1' represent by formula the x solving 1value be the first alternative data x 1', described first terminal comprises from the channel on information resources piece: in the above first base station of information resources piece to the channel of first terminal and in the above second base station of information resources piece the channel to first terminal;
Described first terminal obtains the second data and the 3rd data, specifically comprises:
Described first terminal is according to formula Y 1 ( O 2 ) - Y 1 ( O 3 ) = H 1 1 [ 2 ] x 2 1 + H 1 2 [ 2 ] x 2 2 Y 1 ( O 1 ) = H 1 1 [ 1 ] x 2 1 + H 1 2 [ 1 ] x 2 2 Obtain the second data with the 3rd data wherein, Y 1(O2) represent the signal that first terminal receives on Secondary resource piece, Y 1 ( O 2 ) = H 1 1 [ 2 ] ( x 2 1 + x 1 ) + H 1 2 [ 2 ] ( x 2 2 + x 1 ) , O2 represents Secondary resource piece, be illustrated in the channel of the above first base station of Secondary resource piece to first terminal, be illustrated in the channel of the above second base station of Secondary resource piece to first terminal, Y 1(O1) represent the signal that first terminal receives on first resource piece, O1 represents first resource piece, be illustrated in the channel of the above first base station of first resource piece to first terminal, be shown in the channel of the above second base station of first resource piece to first terminal;
Described first terminal comprises from the channel on first resource piece: in the above first base station of first resource piece to the channel of first terminal and in the above second base station of first resource piece the channel to first terminal;
Described first terminal comprises from the channel on Secondary resource piece: in the above first base station of Secondary resource piece to the channel of first terminal and in the above second base station of Secondary resource piece the channel to first terminal;
The channel of described first terminal on Secondary resource piece is identical with the channel of described first terminal on information resources piece;
Obtain the second alternative data, specifically comprise:
Described first terminal is according to formula Y 1 ( O 2 ) - H 1 1 [ 2 ] x 2 1 - H 1 2 [ 2 ] x 2 2 = H 1 1 [ 2 ] x 1 + H 1 2 [ 2 ] x 1 Obtain the second alternative data x 1=x 1", wherein, x 1" represent by formula Y 1 ( O 2 ) - H 1 1 [ 2 ] x 2 1 - H 1 2 [ 2 ] x 2 2 = H 1 1 [ 2 ] x 1 + H 1 2 [ 2 ] x 1 The x solving 1value be the second alternative data x 1".
5. method as claimed in claim 2, is characterized in that, described the second terminal obtains the second data and the 3rd data, specifically comprises:
Described the second terminal is according to formula Y 2 ( O 2 ) - Y 2 ( O 3 ) = H 2 1 [ 2 ] x 2 1 + H 2 2 [ 2 ] x 2 2 Y 2 ( O 1 ) = H 2 1 [ 1 ] x 2 1 + H 2 2 [ 1 ] x 2 2 Obtain the second data with the 3rd data wherein, Y 2(O3) represent the signal that the second terminal receives on information resources piece, O3 represents information resources piece, y 2(O2) represent the signal that the second terminal receives on Secondary resource piece, o2 represents Secondary resource piece, Y 2(O1) represent the signal that the second terminal receives on first resource piece, O1 represents first resource piece, x 1represent the first data, be illustrated in the channel of the above first base station of information resources piece to the second terminal, be illustrated in the channel of the above second base station of information resources piece to the second terminal, in the above first base station of Secondary resource piece to the channel of the second terminal with identical to the channel of the second terminal in the above first base station of information resources piece, in the above second base station of Secondary resource piece to the channel of the second terminal with identical to the channel of the second terminal in the above second base station of information resources piece be illustrated in the channel of the above first base station of first resource piece to the second terminal, be shown in the channel of the above second base station of first resource piece to the second terminal;
Described the second terminal comprises from the channel on first resource piece: in the above first base station of first resource piece to the channel of the second terminal and in the above second base station of first resource piece the channel to the second terminal;
Described the second terminal comprises from the channel on Secondary resource piece: in the above first base station of Secondary resource piece to the channel of the second terminal and in the above second base station of Secondary resource piece the channel to the second terminal;
Described the second terminal comprises from the channel on information resources piece: in the above first base station of information resources piece to the channel of the second terminal and in the above second base station of information resources piece the channel to the second terminal.
6. a data Transmission system, comprise the first base station and the second base station, for described the first base station three Resource Block identical with described the second base station assigns, wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent, it is characterized in that, comprising:
Described the first base station or described the second base station selected first terminal and the second terminal that meets specified requirements, wherein, the channel of described first terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described first terminal on Secondary resource piece is relevant to the channel on information resources piece, the channel of described the second terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of described the second terminal on Secondary resource piece is relevant to the channel on information resources piece;
Described the first base station is used for, and on information resources piece, sends the first data to first terminal and the second terminal, sends the first data and the second data sum on Secondary resource piece, sends the second data on first resource piece;
Described the second base station is used for, and on information resources piece, sends the first data to first terminal and the second terminal, sends the first data and the 3rd data sum on Secondary resource piece, sends the 3rd data on first resource piece;
Wherein, described the first data are data that described first terminal will receive, and described the second data and described the 3rd data are data that described the second terminal will receive.
7. a base station, described base station is used three Resource Block to send data, and wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, and Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent, it is characterized in that, and described base station comprises:
Select module, for selecting to meet first terminal and second terminal of specified requirements, wherein, the channel of described first terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, the channel of described first terminal on Secondary resource piece is relevant to the channel on information resources piece, the channel of described the second terminal on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of described the second terminal on Secondary resource piece is relevant to the channel on information resources piece;
Sending module for send the first data to first terminal and the second terminal on information resources piece, sends the first data and the second data sum on Secondary resource piece, sends the second data on first resource piece;
Wherein, the 3rd data that described first resource piece also sends for carrying another base station, the first data and the 3rd data sum that described Secondary resource piece also sends for carrying described another base station, the first data that described information resources piece also sends for carrying described another base station, described the first data are data that described first terminal will receive, and described the second data and described the 3rd data are data that described the second terminal will receive.
8. a data sink, on first resource piece, Secondary resource piece, information resources piece, receive the signal that the first base station and the second base station send, wherein, first resource piece is different from the frequency domain of Secondary resource piece, time domain is identical, Secondary resource piece is identical with the frequency domain of information resources piece, time domain is adjacent, it is characterized in that, the channel of described device on first resource piece is uncorrelated with the channel on Secondary resource piece, and the channel of described device on Secondary resource piece is relevant to the channel on information resources piece; What on described information resources piece, carry is the first data of described the first base station transmission and the first data that described the second base station sends, what on described Secondary resource piece, carry is the first data of described the first base station transmission and the first data and the 3rd data sum of the second data sum and described the second base station transmission, and what on described first resource piece, carry is the second data of described the first base station transmission and the 3rd data that described the second base station sends; Wherein, described the first data are data that described device will receive, or described the second data and described the 3rd data are data that described device will receive, and described device comprises:
Receiver module, the signal sending on first resource piece, Secondary resource piece and information resources piece for receiving the first base station and the second base station;
Parsing module, for when described the first data be described device to receive data time, the channel according to described device on information resources piece, and the signal that receives on information resources piece of described receiver module, obtain the first data; Or, when described the second data and described the 3rd data be described device to receive data time, determine that signal that described receiver module receives on Secondary resource piece subtracts the first difference of the signal receiving on information resources piece, the signal that channel according to described device on first resource piece and Secondary resource piece, described the first difference, described receiver module receive on first resource piece, obtains the second data and the 3rd data.
9. device as claimed in claim 8, it is characterized in that, described parsing module specifically for, when described the first data be described device to receive data time, channel according to described device on information resources piece, and the signal that receives on information resources piece of described receiver module, obtain the first alternative data, determine that signal that described receiver module receives on Secondary resource piece subtracts the second difference of the signal receiving on information resources piece, channel according to described device on first resource piece and Secondary resource piece, described the second difference, the signal that described receiver module receives on first resource piece, obtain the second data and the 3rd data, the signal receiving on Secondary resource piece according to described receiver module, the channel of described device on Secondary resource piece and described the second data and described the 3rd data of acquisition, obtain the second alternative data, according to described the first alternative data and described second alternative data acquisition the first data.
10. device as claimed in claim 9, is characterized in that, described parsing module specifically for, according to formula obtain the first alternative data x 1=x 1', wherein, Y 1(O3) represent the signal that described receiver module receives on information resources piece, O3 represents information resources piece, x 1represent the first data, be illustrated in the channel of the above first base station of information resources piece to described device, be illustrated in the channel of the above second base station of information resources piece to described device, x 1' represent by formula the x solving 1value be the first alternative data x 1', the channel of described device on information resources piece comprises: in the above first base station of information resources piece to the channel of described device and in the above second base station of information resources piece to the channel of described device; According to formula Y 1 ( O 2 ) - Y 1 ( O 3 ) = H 1 1 [ 2 ] x 2 1 + H 1 2 [ 2 ] x 2 2 Y 1 ( O 1 ) = H 1 1 [ 1 ] x 2 1 + H 1 2 [ 1 ] x 2 2 Obtain the second data with the 3rd data wherein, Y 1(O2) represent the signal that described receiver module receives on Secondary resource piece, Y 1 ( O 2 ) = H 1 1 [ 2 ] ( x 2 1 + x 1 ) + H 1 2 [ 2 ] ( x 2 2 + x 1 ) , O2 represents Secondary resource piece, be illustrated in the channel of the above first base station of Secondary resource piece to described device, be illustrated in the channel of the above second base station of Secondary resource piece to described device, Y 1(O1) represent the signal that described receiver module receives on first resource piece, O1 represents first resource piece, be illustrated in the channel of the above first base station of first resource piece to described device, be shown in the channel of the above second base station of first resource piece to described device; The channel of described device on first resource piece comprises: in the above first base station of first resource piece to the channel of described device and in the above second base station of first resource piece to the channel of described device; The channel of described device on Secondary resource piece comprises: in the above first base station of Secondary resource piece to the channel of described device and in the above second base station of Secondary resource piece to the channel of described device; The channel of described device on Secondary resource piece is identical with the channel of described device on information resources piece; According to formula Y 1 ( O 2 ) - H 1 1 [ 2 ] x 2 1 - H 1 2 [ 2 ] x 2 2 = H 1 1 [ 2 ] x 1 + H 1 2 [ 2 ] x 1 Obtain the second alternative data x 1=x 1", wherein, x 1" represent by formula Y 1 ( O 2 ) - H 1 1 [ 2 ] x 2 1 - H 1 2 [ 2 ] x 2 2 = H 1 1 [ 2 ] x 1 + H 1 2 [ 2 ] x 1 The x solving 1value be the second alternative data x 1".
11. devices as claimed in claim 8, is characterized in that, described parsing module specifically for, when described the second data and described the 3rd data be described device to receive data time, according to formula Y 1 ( O 2 ) - Y 1 ( O 3 ) = H 1 1 [ 2 ] x 2 1 + H 1 2 [ 2 ] x 2 2 Y 1 ( O 1 ) = H 1 1 [ 1 ] x 2 1 + H 1 2 [ 1 ] x 2 2 Obtain the second data with the 3rd data wherein, Y 1(O3) represent the signal that described receiver module receives on information resources piece, O3 represents information resources piece, y 2(O2) represent the signal that described receiver module receives on Secondary resource piece, o2 represents Secondary resource piece, Y 1(O1) represent the signal that described receiver module receives on first resource piece, O1 represents first resource piece, x 1represent the first data, be illustrated in the channel of the above first base station of information resources piece to described device, be illustrated in the channel of the above second base station of information resources piece to described device, identical with the channel that arrives described device in the above first base station of information resources piece to the channel of described device in the above first base station of Secondary resource piece, identical with the channel that arrives described device in the above second base station of information resources piece to the channel of described device in the above second base station of Secondary resource piece be illustrated in the channel of the above first base station of first resource piece to described device, be shown in the channel of the above second base station of first resource piece to described device; The channel of described device on first resource piece comprises: in the above first base station of first resource piece to the channel of described device and in the above second base station of first resource piece to the channel of described device; The channel of described device on Secondary resource piece comprises: in the above first base station of Secondary resource piece to the channel of described device and in the above second base station of Secondary resource piece to the channel of described device; The channel of described device on information resources piece comprises: in the above first base station of information resources piece to the channel of described device and in the above second base station of information resources piece to the channel of described device.
CN201410280349.5A 2014-06-20 2014-06-20 A kind of data transmission method, apparatus and system Active CN104023405B (en)

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