Signal processing method and related apparatus

1 . A signal processing method, performed by a network device, wherein the method comprises:

receiving sounding signal information from user equipment, wherein the sounding signal information comprises N pieces of sub-sounding signal information received by N antennas of the network device, and N is an integer greater than or equal to 2;

performing first weighting processing on the sounding signal information based on a first matrix to determine first signal information, wherein the first matrix is an N-dimensional unitary matrix;

determining a channel weight of to-be-sent signal information based on the first signal information and weighting the to-be-sent signal information based on the channel weight to determine N pieces of second signal information;

performing second weighting processing on the N pieces of second signal information based on a second matrix to obtain N pieces of third signal information, wherein the second matrix is an inverse matrix of the first matrix; and

sending the corresponding third signal information using the N antennas of the network device.

2 . The method according to claim 1 , wherein

coverage areas of at least two of the N antennas are different.

3 . The method according to claim 1 , wherein N=2M, M is an integer greater than or equal to 1, and the first matrix is a matrix determined by a Kronecker product obtained by multiplying N matrices

[

1

j

j

1

]

⁢

or

[

1

-

j

-

j

1

]

.

4 . The method according to claim 3 , wherein

when N=2, a mathematical form of the second matrix is

[

1

j

j

1

]

;

when N=4, a mathematical form of the second matrix is;

[

1

j

j

-

1

j

-

1

1

j

j

1

-

1

j

-

1

j

j

1

]

;

 or

when N=8, a mathematical form of the second matrix is

[

1

j

j

-

1

j

-

1

-

1

-

j

j

-

1

-

1

-

j

1

j

j

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1

j

1

-

1

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-

1

j

-

j

-

1

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1

j

-

j

-

1

j

1

-

1

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j

-

1

1

j

-

1

-

j

j

-

1

-

1

-

j

j

-

1

j

-

1

1

j

-

1

j

j

1

-

j

-

1

-

1

j

-

j

-

1

-

1

j

-

1

j

j

1

]

.

5 . The method according to claim 1 , wherein the second signal information is in one-to-one correspondence with the third signal information, and the third signal information is in one-to-one correspondence with the N antennas.

6 . A signal processing apparatus, comprising:

a processor; and

a memory coupled to the processor with computer readable instructions stored thereon, wherein the instructions, when executed by the processor, enable the apparatus to:

receive sounding signal information sent by user equipment, wherein the sounding signal information comprises N pieces of sub-sounding signal information received by N antennas of a network device, and Nis an integer greater than or equal to 2;

perform first weighting processing on the sounding signal information based on a first matrix to determine first signal information, wherein the first matrix is an N-dimensional unitary matrix;

determine a channel weight of to-be-sent signal information based on the first signal information and weight the to-be-sent signal information based on the channel weight to determine N pieces of second signal information;

perform second weighting processing on the N pieces of second signal information based on a second matrix to obtain N pieces of third signal information, wherein the second matrix is an inverse matrix of the first matrix; and

send the corresponding third signal information using the N antennas.

7 . The apparatus according to claim 6 , wherein

coverage areas of at least two of the N antennas are different.

8 . The apparatus according to claim 6 , wherein N=2M, M is an integer greater than or equal to 1, and the first matrix is a matrix determined by a Kronecker product obtained by multiplying N matrices

[

1

j

j

1

]

⁢

or

[

1

-

j

-

j

1

]

.

9 . The apparatus according to claim 8 , wherein

when N=2, a mathematical form of the second matrix is

[

1

j

j

1

]

;

when N=4, a mathematical form of the second matrix is

[

1

j

j

-

1

j

-

1

1

j

j

1

-

1

j

-

1

j

j

1

]

;

 or

when N=8, a mathematical form of the second matrix is

[

1

j

j

-

1

j

-

1

-

1

-

j

j

-

1

-

1

-

j

1

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1

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1

-

1

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1

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j

-

1

-

1

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1

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1

-

1

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1

1

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1

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1

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1

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1

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1

1

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1

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1

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j

-

1

-

1

j

-

j

-

1

-

1

j

-

1

j

j

1

]

.

10 . The apparatus according to claim 6 , wherein the second signal information is in one-to-one correspondence with the third signal information, and the third signal information is in one-to-one correspondence with the N antennas.

11 . A non-transitory computer-readable storage medium, comprising a computer program, wherein, when the computer program runs on a computer, cause the computer to:

receive sounding signal information from user equipment, wherein the sounding signal information comprises N pieces of sub-sounding signal information received by N antennas of a network device, and N is an integer greater than or equal to 2;

perform first weighting processing on the sounding signal information based on a first matrix to determine first signal information, wherein the first matrix is an N-dimensional unitary matrix;

determine a channel weight of to-be-sent signal information based on the first signal information and weighting the to-be-sent signal information based on the channel weight to determine N pieces of second signal information;

perform second weighting processing on the N pieces of second signal information based on a second matrix to obtain N pieces of third signal information, wherein the second matrix is an inverse matrix of the first matrix; and

send the corresponding third signal information using the N antennas of the network device.

12 . The non-transitory computer-readable storage medium according to claim 11 , wherein coverage areas of at least two of the N antennas are different.

13 . The non-transitory computer-readable storage medium according to claim 11 , wherein N=2M, M is an integer greater than or equal to 1, and the first matrix is a matrix determined by a Kronecker product obtained by multiplying N matrices

[

1

j

j

1

]

⁢

or

[

1

-

j

-

j

1

]

.

14 . The non-transitory computer-readable storage medium according to claim 13 , wherein

when N=2, a mathematical form of the second matrix is

[

1

j

j

1

]

;

when N=4, a mathematical form of the second matrix is

[

1

j

j

-

1

j

-

1

1

j

j

1

-

1

j

-

1

j

j

1

]

;

 or

when N=8, a mathematical form of the second matrix is

[

1

j

j

-

1

j

-

1

-

1

-

j

j

-

1

-

1

-

j

1

j

j

-

1

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1

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1

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1

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1

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1

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1

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1

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1

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1

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1

j

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j

-

1

-

1

j

-

1

j

j

1

]

.

15 . The non-transitory computer-readable storage medium according to claim 11 , wherein the second signal information is in one-to-one correspondence with the third signal information, and the third signal information is in one-to-one correspondence with the N antennas.