Method and device for transmitting a plurality of data symbols
First Claim
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1. A method for transmitting a plurality of data symbols using a plurality of transmit antennas and a plurality of transmission resources comprising:
- generating a plurality of transmission symbols from the plurality of data symbols; and
associating each transmission symbol with one of the plurality of transmit antennas and one of the plurality of transmission resources;
wherein the transmission symbols are generated and associated with the transmit antennas and transmission resources such that the transmission symbols are written in the form of a first matrix with a sub-vector in a first dimension for each of the plurality of antennas and a sub-vector in a second dimension for each of the plurality of the transmission resources, such that each component of the matrix holds the transmission symbol that is transmitted using the antenna corresponding to sub-vector in the first dimension in which the component is positioned and using the transmission resource corresponding to the sub-vector in the second dimension in which the component is positioned, and the first matrix is represented as a combination of a second matrix and a third matrix, andwherein for each of the second matrix and the third matrix, each component of the matrix is equal to one of the data symbols or the complex conjugate of a data symbol to be transmitted multiplied by a weighting factor and the matrix is divisible into sub-matrices of dimension at least 2×
2 such that, for each two sub-matrices having only column sub-vectors of the same columns or row sub-vectors of the same rows, at least one component of one of the two sub-matrices differs from the corresponding component of the other of the two sub-matrices at least in the phase or the absolute value of the weighting factor.
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Abstract
A method for transmitting a plurality of data symbols using a plurality of transmit antennas and a plurality of transmission resources is described, in which transmission symbols are generated and associated with the transmit antennas and transmission resources in such a way, such that if this association is represented in the form of a matrix, this matrix can be represented as the combination of two matrices comprising as components the data symbols multiplied with at least partially different weighting factors.
63 Citations
24 Claims
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1. A method for transmitting a plurality of data symbols using a plurality of transmit antennas and a plurality of transmission resources comprising:
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generating a plurality of transmission symbols from the plurality of data symbols; and associating each transmission symbol with one of the plurality of transmit antennas and one of the plurality of transmission resources; wherein the transmission symbols are generated and associated with the transmit antennas and transmission resources such that the transmission symbols are written in the form of a first matrix with a sub-vector in a first dimension for each of the plurality of antennas and a sub-vector in a second dimension for each of the plurality of the transmission resources, such that each component of the matrix holds the transmission symbol that is transmitted using the antenna corresponding to sub-vector in the first dimension in which the component is positioned and using the transmission resource corresponding to the sub-vector in the second dimension in which the component is positioned, and the first matrix is represented as a combination of a second matrix and a third matrix, and wherein for each of the second matrix and the third matrix, each component of the matrix is equal to one of the data symbols or the complex conjugate of a data symbol to be transmitted multiplied by a weighting factor and the matrix is divisible into sub-matrices of dimension at least 2×
2 such that, for each two sub-matrices having only column sub-vectors of the same columns or row sub-vectors of the same rows, at least one component of one of the two sub-matrices differs from the corresponding component of the other of the two sub-matrices at least in the phase or the absolute value of the weighting factor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A non-transitory computer readable medium having stored thereon a computer program having a program code, which, when executed by a computer, makes the computer perform a method for transmitting a plurality of data symbols using a plurality of transmit antennas and a plurality of transmission resources comprising:
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generating a plurality of transmission symbols from the plurality of data symbols; and associating each transmission symbol with one of the plurality of transmit antennas and one of the plurality of transmission resources, wherein the transmission symbols are generated and associated with the transmit antennas and transmission resources such that the transmission symbols are written in the form of a first matrix with a sub-vector in a first dimension for each of the plurality of antennas and a sub-vector in a second dimension for each of the plurality of the transmission resources, such that each component of the matrix holds the transmission symbol that is transmitted using the antenna corresponding to sub-vector in the first dimension in which the component is positioned and using the transmission resource corresponding to the sub-vector in the second dimension in which the component is positioned, and the first matrix is represented as a combination of a second matrix and a third matrix, and wherein for each of the second matrix and the third matrix, each component of the matrix is equal to one of the data symbols or the complex conjugate of a data symbol to be transmitted multiplied by a weighting factor and the matrix is divisible into sub-matrices of dimension at least 2×
2 such that, for each two sub-matrices having only column sub-vectors of the same columns or row sub-vectors of the same rows, at least one component of one of the two sub-matrices differs from the corresponding component of the other of the two sub-matrices in at least the phase or the absolute value of the weighting factor.
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24. A method for transmitting a plurality of data symbols using a plurality of transmit antennas, a plurality of transmission resources, and a plurality of receiving antennas comprising:
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generating a plurality of transmission symbols from the plurality of data symbols; and associating each transmission symbol with one of the plurality of transmit antennas and one of the plurality of transmission resources, wherein the transmission symbols are generated and associated with the transmit antennas and transmission resources such that the transmission symbols are written in the form of a first matrix with a sub-vector in a first dimension for each of the plurality of antennas and a sub-vector in a second dimension for each of the plurality of the transmission resources, such that each component of the matrix holds the transmission symbol that is transmitted using the antenna corresponding to sub-vector in the first dimension in which the component is positioned and using the transmission resource corresponding to the sub-vector in the second dimension in which the component is positioned, the first matrix is represented as a combination of two multi antenna precoding matrices for a transmission system with the same number of transmit antennas as in the plurality of transmit antennas and with less receiving antennas as in the number of receiving antennas.
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Specification