阅读说明：本技术 一种信道估计方法和装置 (Channel estimation method and device ) 是由 王潇涵 金黄平 任翔 韩玮 毕晓艳 于 2019-01-08 设计创作，主要内容包括：本申请实施例公开了一种信道估计方法和装置,涉及通信技术领域,有助于降低指示开销。该方法可以包括：生成并发送指示信息,指示信息用于指示M个N维预编码向量,每个预编码向量应用于M个频带中的一个频带,M个N维预编码向量构成一个空频矩阵,空频矩阵由多个空频分量矩阵加权合并生成；空频矩阵是一个M×N维空频向量或者X×Y的空频矩阵,其中X和Y分别为M和N之中的一个和另一个,M≥1,N≥2,M和N均是整数。(The embodiment of the application discloses a channel estimation method and a channel estimation device, relates to the technical field of communication, and is beneficial to reducing indication overhead. The method can comprise the following steps: generating and sending indication information, wherein the indication information is used for indicating M N-dimensional precoding vectors, each precoding vector is applied to one frequency band of the M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, and the space-frequency matrix is generated by weighting and combining a plurality of space-frequency component matrixes; the space-frequency matrix is an M multiplied by N dimensional space-frequency vector or an X multiplied by Y space-frequency matrix, wherein X and Y are respectively one and the other of M and N, M is more than or equal to 1, N is more than or equal to 2, and M and N are integers.)

A method of channel estimation, comprising:

generating indication information, wherein the indication information is used for indicating M N-dimensional precoding vectors, each precoding vector is applied to one frequency band of M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, the space-frequency matrix is generated by weighting and combining a plurality of space-frequency component matrixes, the space-frequency matrix is an M multiplied by N-dimensional space-frequency vector or an X multiplied by Y space-frequency matrix, X and Y are respectively one and the other of M and N, M is more than or equal to 1, N is more than or equal to 2, and M and N are integers;

and sending the indication information.

A method of channel estimation, comprising:

receiving indication information, wherein the indication information is used for indicating M N-dimensional precoding vectors, each precoding vector is applied to one frequency band of M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, the space-frequency matrix is generated by weighting and combining a plurality of space-frequency component matrixes, the space-frequency matrix is an M multiplied by N-dimensional space-frequency vector or an X multiplied by Y space-frequency matrix, X and Y are respectively one and the other of M and N, M is more than or equal to 1, N is more than or equal to 2, and M and N are integers;

and determining the M N-dimensional precoding vectors according to the indication information.

A channel estimation device, comprising:

the device comprises a processing unit and a processing unit, wherein the processing unit is used for generating indication information, the indication information is used for indicating M N-dimensional precoding vectors, each precoding vector is applied to one frequency band of M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, the space-frequency matrix is generated by weighting and combining a plurality of space-frequency component matrixes, the space-frequency matrix is an M multiplied by N-dimensional space-frequency vector or an X multiplied by Y space-frequency matrix, X and Y are respectively one and the other of M and N, M is not less than 1, N is not less than 2, and M and N are integers;

and the transceiving unit is used for sending the indication information.

A channel estimation device, comprising:

a transceiving unit, configured to receive indication information, where the indication information is used to indicate M N-dimensional precoding vectors, each precoding vector is applied to one frequency band of the M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, and the space-frequency matrix is generated by weighting and combining a plurality of space-frequency component matrices, where the space-frequency matrix is an M × N-dimensional space-frequency vector or an X × Y space-frequency matrix, where X and Y are one and the other of M and N, respectively, M is greater than or equal to 1, N is greater than or equal to 2, and M and N are integers;

and the processing unit is used for determining the M N-dimensional precoding vectors according to the indication information.

The method or apparatus of any one of claims 1 to 4, wherein each space-frequency component matrix is selected from a set of space-frequency component matrices, or is generated by a weighted combination of a plurality of space-frequency basis matrices selected from a set of space-frequency basis matrices.

The method or apparatus of claim 5,

if each space-frequency component matrix is selected from a set of space-frequency component matrices, the indication information is specifically used to indicate: the plurality of matrices of space-frequency components, and a weight for each matrix of space-frequency components in the plurality of matrices of space-frequency components;

or, if each space-frequency component matrix is generated by weighting and combining a plurality of space-frequency basis matrices selected from a set of space-frequency basis matrices, the indication information is specifically used to indicate: a plurality of space-frequency basis matrixes corresponding to each space-frequency component matrix in the plurality of space-frequency component matrixes and weight information; wherein the weight information includes: weights of the plurality of space-frequency basis matrices, and weights of the space-frequency component matrices; or the weight information includes: and the weights of the plurality of space-frequency basic matrixes are respectively multiplied by the weights of the space-frequency component matrixes to obtain weights.

The method or apparatus of any of claims 1 to 4, wherein the space-frequency matrix is an X X Y space-frequency matrix, each of the plurality of space-frequency component matrices being constructed based on two vectors, wherein the two vectors are constructed based on one and the other of an N-dimensional space-frequency component vector and an M-dimensional frequency-domain component vector, respectively.

The method or apparatus of any of claims 1 to 4, wherein the space-frequency matrix is an M x N-dimensional space-frequency vector, the plurality of space-frequency component matrices are in particular a plurality of space-frequency component vectors, each space-frequency component vector of the plurality of space-frequency component vectors being a kronecker product of two vectors, wherein one vector of the two vectors is constructed based on an N-dimensional space-frequency component vector and the other vector is constructed based on an M-dimensional frequency-domain component vector.

The method or apparatus of claim 7 or 8,

each spatial component vector is selected from a spatial component vector set, or is generated by weighting and combining a plurality of spatial basis vectors selected from a spatial basis vector set;

each frequency-domain component vector is selected from a set of frequency-domain component vectors, or generated by a weighted combination of a plurality of frequency-domain basis vectors selected from a set of frequency-domain basis vectors.

The method or apparatus of claim 9,

if each spatial component vector is selected from a set of spatial component vectors, and each frequency domain component vector is selected from a set of frequency domain component vectors, the indication information is specifically used to indicate: the space-frequency component vector and the frequency-domain component vector corresponding to each space-frequency component matrix in the plurality of space-frequency component matrices, and the weight of the space-frequency component matrix;

or, if each spatial component vector is selected from a set of spatial component vectors, and each frequency domain component vector is generated by weighting and combining a plurality of frequency domain basis vectors, the indication information is specifically used to indicate: the space-frequency component vector and the frequency-domain basis vectors corresponding to each of the plurality of space-frequency component matrices, and weight information; the weight information includes: weights of the plurality of frequency domain basis vectors and weights of the space-frequency component matrix; or the weight information includes: the weights of the frequency domain basis vectors are respectively multiplied by the weight of the space-frequency component matrix to obtain weights;

or, if each spatial component vector is generated by weighting and combining a plurality of spatial basis vectors, and each frequency domain component vector is selected from a set of frequency domain component vectors, the indication information is specifically used to indicate: the frequency domain component vector and the space domain base vectors corresponding to each space-frequency component matrix in the plurality of space-frequency component matrices, and weight information; the weight information includes: weights of the plurality of space-domain basis vectors and weights of the space-frequency component matrix; or the weight information includes: the weights of the space-domain basis vectors are respectively multiplied by the weight of the space-frequency component matrix to obtain weights;

or, if each spatial component vector is generated by weighting and combining a plurality of spatial basis vectors, and each frequency domain component vector is generated by weighting and combining a plurality of frequency domain basis vectors, the indication information is specifically used to indicate: a plurality of space domain basis vectors and a plurality of frequency domain basis vectors corresponding to each space-frequency component matrix in the plurality of space-frequency component matrices, and weight information; the weight information includes: weights of the plurality of space-frequency basis vectors, weights of the plurality of frequency-domain basis vectors, and weights of the space-frequency component matrix; or the weight information includes: the weights of the plurality of space domain basis vectors are respectively multiplied by the weight of the space-frequency component matrix to obtain weights and the weights of the plurality of frequency domain basis vectors; or the weight information includes: the weights of the plurality of frequency domain basis vectors are respectively multiplied by the weight of the space-frequency component matrix to obtain weights, and the weights of the plurality of space domain basis vectors are obtained.

The method or apparatus of any one of claims 5 to 10, wherein the indication information includes at least one piece of sub information, each piece of sub information in the at least one piece of sub information is used to indicate the at least one piece of information indicated by the indication information, a transmission period of at least two pieces of sub information is different, or a transmission period of all pieces of sub information is the same.

The method or apparatus of any of claims 9 to 11,

when each space-frequency component vector is generated by weighting and combining a plurality of space-frequency base vectors, each space-frequency component matrix in the plurality of space-frequency component matrices corresponds to the same group of space-frequency base vectors;

and/or when each frequency domain component vector is generated by weighting and combining a plurality of frequency domain basis vectors, each space-frequency component matrix in the plurality of space-frequency component matrices corresponds to the same set of frequency domain basis vectors.

The method or apparatus of claim 9 or 10, wherein the frequency domain basis vectors of the set of frequency domain basis vectors are column vectors of a discrete fourier transform, DFT, matrix or column vectors of a unitary matrix of a singular value decomposition, SVD.

A channel estimation device, comprising: memory for storing a computer program and a processor for invoking the computer program such that the method of any one of claims 1, 2, 5-13 is performed.

A computer-readable storage medium, comprising a computer program which, when run on a computer, causes the method of any one of claims 1, 2, 5-13 to be performed.

A processor, comprising:

at least one circuit, configured to generate indication information, where the indication information is used to indicate M N-dimensional precoding vectors, each precoding vector is applied to one frequency band of the M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, and the space-frequency matrix is generated by weighting and combining a plurality of space-frequency component matrices, where the space-frequency matrix is an M × N-dimensional space-frequency vector or an X × Y space-frequency matrix, where X and Y are one and the other of M and N, respectively, M is greater than or equal to 1, N is greater than or equal to 2, and M and N are integers;

at least one circuit for transmitting the indication information via a transmitter.

A processor, comprising:

at least one circuit, configured to receive indication information through a receiver, where the indication information is used to indicate M N-dimensional precoding vectors, each precoding vector is applied to one frequency band of M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, and the space-frequency matrix is generated by weighting and combining a plurality of space-frequency component matrices, where the space-frequency matrix is an M × N-dimensional space-frequency vector or an X × Y space-frequency matrix, where X and Y are one and the other of M and N, respectively, M is greater than or equal to 1, N is greater than or equal to 2, and M and N are integers;

at least one circuit configured to determine the M N-dimensional precoding vectors based on the indication information.

A processing device, characterized in that the processing device comprises a transmitter and a processor;

the processor is configured to generate indication information, where the indication information is used to indicate M N-dimensional precoding vectors, each precoding vector is applied to one frequency band of M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, and the space-frequency matrix is generated by weighting and combining a plurality of space-frequency component matrices, where the space-frequency matrix is an M × N-dimensional space-frequency vector or an X × Y space-frequency matrix, where X and Y are respectively one and the other of M and N, M is greater than or equal to 1, N is greater than or equal to 2, and M and N are integers;

the processor is further configured to transmit, by the transmitter, the indication information.

A processing device, characterized in that the processing device comprises a receiver and a processor;

the processor is configured to receive indication information through the receiver, where the indication information is used to indicate M N-dimensional precoding vectors, each precoding vector is applied to one frequency band of the M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, and the space-frequency matrix is generated by weighting and combining a plurality of space-frequency component matrices, where the space-frequency matrix is an M × N-dimensional space-frequency vector or an X × Y space-frequency matrix, where X and Y are one and the other of M and N, respectively, M is greater than or equal to 1, N is greater than or equal to 2, and M and N are integers;

the processor is further configured to determine the M N-dimensional precoding vectors according to the indication information.

A computer program product, which, when run on a computer, causes the method of any one of claims 1, 2, 5 to 13 to be performed.

A communication chip having instructions stored therein, which when run on a network device or terminal, cause the network device or terminal to perform the method of any one of claims 1, 2, 5-13.