Granted Patent B2

US 12,255,709 · App. 17/896,909 · Granted Mar 18, 2025

Inventors: Pengcheng Zhang (Xi'an, CN); Xiaojin Zheng (Shanghai, CN)

Assignee: HUAWEI TECHNOLOGIES CO., LTD.

H04B7/0456H01Q1/523H01Q3/40H04B1/583H04B7/0413

Abstract

Claims (581)

1. An antenna system comprising, wherein the antenna system comprises

a bridge network comprising n bridge modules wherein a third port of a 1 st bridge module in the n bridge modules is connected to a second port of an n th bridge module in the n bridge modules, a third port of an i th bridge module in the n bridge modules is connected to a second port of an (i−1) th bridge module in the n bridge modules; and

an antenna module comprising n antennas, wherein fourth ports of the n bridge modules are respectively connected to the n antennas, wherein i is an integer greater than or equal to 2 and less than or equal to n, and wherein n is an integer greater than or equal to 2;

wherein the 1 st bridge module in the n bridge modules performs first weighting processing on a first analog signal input at a first port of the 1 st bridge module and a second analog signal input at a second port of the 1 st bridge module, to obtain a first component and a second component, and the 1 st bridge module outputs the first component at a fourth port of the 1 st bridge module, and inputs, at the third port of the 1 st bridge module, the second component to the second port of the n th bridge module in the n bridge modules, to use the second component as a second analog signal of the second port of the n th bridge module; and

a k th bridge module in the n bridge modules performs first weighting processing on a first analog signal input at a first port of the k th bridge module and a second analog signal input at a second port of the k th bridge module, to obtain a first component and a second component, and the k th bridge module outputs the first component at a fourth port of the k th bridge module, and inputs, at a third port of the k th bridge module, the second component to a second port of a (k−1) th bridge module in the n bridge modules, to use the second component as a second analog signal of the second port of the (k−1) th bridge module, wherein k is an integer greater than 1 and less than or equal to n.

2. The antenna system according to claim 1 , wherein

[

P

0

P

1

P

2

P

3

…

…

P

n

-

1

]

=

Umatrix

*

[

p

⁢

0

p

⁢

1

p

⁢

2

p

⁢

3

…

…

p

n

-

1

]

,

[

P

0

P

1

P

2

P

3

…

…

P

n

-

1

]

is a matrix comprising a sum of output components of fourth ports of all of the n bridge modules, a first weighting matrix is

Umatrix

=

1

2

⁢

(

S

-

D

*

S

(

2

*

S

-

D

*

S

)

)

,

S

=

[

0

1

0

…

…

0

…

…

0

…

…

1

1

0

0

0

]

,

S is an n*n matrix,

D

=

[

e

-

i

⁡

(

2

⁢

πδ

0

)

0

…

0

0

e

-

i

⁡

(

2

⁢

πδ

1

)

…

…

…

…

…

0

0

0

…

e

-

i

⁡

(

2

⁢

πδ

n

-

1

)

]

,

D is an n*n matrix, e −i(x) is a complex exponential function whose base is a natural number e, δ 0 is a wavelength trip corresponding to a line length of a connection line between the second port of the 1 st bridge module of the bridge network and a third port of a bridge module connected to the second port of the 1 st bridge module, δ 1 is a wavelength trip corresponding to a line length of a connection line between a second port of a 2 nd bridge module of the bridge network and a third port of a bridge module connected to the second port of the 2 nd bridge module, δ n−1 is a wavelength trip corresponding to a line length of a connection line between the second port of the n th bridge module of the bridge network and a third port of a bridge module connected to the second port of the n th bridge module, and

[

p

⁢

0

p

⁢

1

p

⁢

2

p

⁢

3

…

…

p

n

-

1

]

is a matrix comprising a first analog signal of a first port of each of the n bridge modules.

3. The antenna system according to claim 1 , wherein the antenna system further comprises a control module, wherein the control module is configured to set a line length of a connection line between the n bridge modules, and wherein the line length of the connection line between the n bridge modules is used to control a proportion value of output signals of first ports of the n bridge modules.

4. The antenna system according to claim 2 , wherein the antenna system further comprises a digital signal processing module and a digital-to-analog conversion module, the digital signal processing module is connected to a first terminal of the digital-to-analog conversion module, and a second terminal of the digital-to-analog conversion module is connected to the bridge network;

wherein the digital signal processing module is configured to perform second weighting processing on a first multi-path digital signal received by the digital signal processing module, to obtain a second multi-path digital signal, wherein the second weighting processing is implemented by using a second weighting matrix, the second weighting matrix is an n*m matrix, n is a quantity of bridge modules comprised in the antenna system, m is a quantity of signals comprised in the first multi-path digital signal, and m is an integer greater than o and less than or equal to n;

wherein the second weighting matrix meets any one of the following conditions:

column vectors of the second weighting matrix are orthogonal;

each column vector of the second weighting matrix is orthogonal to one or more row vectors of the first weighting matrix; or

the second weighting matrix is obtained by performing conjugate transposition on the first weighting matrix; and

wherein the digital-to-analog conversion module is configured to perform digital-to-analog conversion on the second multi-path digital signal, to obtain a first multi-path analog signal, wherein the first multi-path analog signal comprises a first analog signal of a first port of m of the n bridge modules.

5. The antenna system according to claim 4 , wherein the first multi-path digital signal comprises:

m layers of multiple-input multiple-output (MIMO) transmit signals;

signals sent by m users;

signals sent by m cells; or

signals sent in m beam directions.

6. The antenna system according to claim 1 , wherein each bridge module is an intra-band combiner.

7. An antenna system comprising: wherein the antenna system comprises a bridge network, wherein the bridge network comprises n bridge modules, a third port of a 1 st bridge module in the n bridge modules is connected to a second port of an n th bridge module in the n bridge modules, a third port of an i th bridge module in the n bridge modules is connected to a second port of an (i−1) th bridge module in the n bridge modules; and

an antenna module, wherein the antenna module comprises n antennas, wherein fourth ports of the n bridge modules are respectively connected to the n antennas, wherein i is an integer greater than or equal to 2 and less than or equal to n, and wherein n is an integer greater than or equal to 2;

wherein the n th bridge module in the n bridge modules performs third weighting processing on a third analog signal input at a third port of the n th bridge module and a fourth analog signal input by an n th antenna in the n antennas to a fourth port of the n th bridge module, to obtain a third component and a fourth component, and the n th bridge module outputs the third component at a first port of the n th bridge module, and inputs, at the second port of the n th bridge module, the fourth component to the third port of the 1 st bridge module, to use the fourth component as a third analog signal of the third port of the n th bridge module; and

wherein a j th bridge module in the n bridge modules performs third weighting processing on a third analog signal input at a third port of the j th bridge module and a fourth analog signal input by a j th antenna to a fourth port of the j th bridge module, to obtain a third component and a fourth component, and the j th bridge module outputs the third component at a first port of the j th bridge module, and inputs, at a second port of the j th bridge module, the fourth component to a third port of a (j+1) th bridge module, to use the fourth component as a third analog signal of the third port of the (j+1) th bridge module, wherein j is an integer greater than or equal to 1 and less than n.

8. The antenna system according to claim 7 , wherein

[

x

⁢

0

x

⁢

1

x

⁢

2

x

⁢

3

…

…

x

n

-

1

]

=

Umatri

⁢

x

H

*

[

X

0

X

1

X

2

X

3

…

…

X

n

-

1

]

,

[

x

⁢

0

x

⁢

1

x

⁢

2

x

⁢

3

…

…

x

n

-

1

]

is a matrix comprising a sum of output components of first ports of all of the n bridge modules, a third weighting matrix Umatrix H is obtained by performing conjugate transposition on Umatrix

Umatrix

=

1

2

⁢

(

S

-

D

*

S

(

2

*

S

-

D

*

S

)

)

,

S

=

[

0

1

0

…

…

0

…

…

0

…

…

1

1

0

0

0

]

,

S is an n*n matrix,

D

=

[

e

-

i

⁡

(

2

⁢

πδ

0

)

0

…

0

0

e

-

i

⁡

(

2

⁢

πδ

1

)

…

…

…

…

…

0

0

0

…

e

-

i

⁡

(

2

⁢

πδ

n

-

1

)

]

,

D is an n*n matrix, e −i(x) is a complex exponential function whose base is a natural number e, δ 0 is a wavelength trip corresponding to a line length of a connection line between the second port of the 1 st bridge module of the bridge network and a third port of a bridge module connected to the second port of the 1 st bridge module, δ 1 is a wavelength trip corresponding to a line length of a connection line between a second port of a 2 nd bridge module of the bridge network and a third port of a bridge module connected to the second port of the 2 nd bridge module, δ N−1 is a wavelength trip corresponding to a line length of a connection line between the second port of the n th bridge module of the bridge network and a third port of a bridge module connected to the second port of the n th bridge module, and

[

X

0

X

1

X

2

X

3

…

…

X

n

-

1

]

is a matrix comprising a fourth analog signal of a fourth port of each of the n bridge modules.

9. The antenna system according to claim 7 , wherein the antenna system further comprises a control module, wherein the control module is configured to set a line length of a connection line between the n bridge modules, and wherein the line length of the connection line between the n bridge modules is used to control a proportion value of output signals of first ports of the n bridge modules.

10. The antenna system according to claim 8 , wherein the antenna system further comprises a digital signal processing module and a digital-to-analog conversion module, the digital signal processing module is connected to a first terminal of the digital-to-analog conversion module, and a second terminal of the digital-to-analog conversion module is connected to the bridge network;

wherein the digital-to-analog conversion module is configured to receive a second multi-path analog signal sent by the bridge network, and perform digital-to-analog conversion on the second multi-path analog signal, to obtain a third multi-path digital signal; and

wherein the digital signal processing module is configured to perform fourth weighting processing on the third multi-path digital signal, to obtain a fourth multi-path digital signal, wherein the fourth weighting processing is implemented by using a fourth weighting matrix, the fourth weighting matrix is an m*n matrix, m is a quantity of signals comprised in the third multi-path digital signal, and m is an integer greater than o and less than or equal to n; and

the fourth weighting matrix meets any one of the following conditions:

row vectors of the fourth weighting matrix are orthogonal;

each row vector of the fourth weighting matrix is orthogonal to one or more column vectors of the third weighting matrix; or

the fourth weighting matrix is obtained by performing conjugate transposition on the third weighting matrix.

11. The antenna system according to claim 10 , wherein the third multi-path digital signal comprises:

m layers of multiple-input multiple-output (MIMO) receive signals;

signals received by m users;

signals received by m cells; or

signals received in m beam directions.

12. The antenna system according to claim 7 , wherein each bridge module is an intra-band combiner.

13. An access network device, wherein the access network device includes an antenna system comprising:

a bridge network comprising n bridge modules wherein a third port of a 1 st bridge module in the n bridge modules is connected to a second port of an n th bridge module in the n bridge modules, a third port of an i th bridge module in the n bridge modules is connected to a second port of an (i−1) th bridge module in the n bridge modules; and

an antenna module comprising n antennas, wherein fourth ports of the n bridge modules are respectively connected to the n antennas, wherein i is an integer greater than or equal to 2 and less than or equal to n, and wherein n is an integer greater than or equal to 2;

wherein the 1 st bridge module in the n bridge modules performs first weighting processing on a first analog signal input at a first port of the 1 st bridge module and a second analog signal input at a second port of the 1 st bridge module, to obtain a first component and a second component, and the 1 st bridge module outputs the first component at a fourth port of the 1 st bridge module, and inputs, at the third port of the 1 st bridge module, the second component to the second port of the n th bridge module in the n bridge modules, to use the second component as a second analog signal of the second port of the n th bridge module; and

a k th bridge module in the n bridge modules performs first weighting processing on a first analog signal input at a first port of the k th bridge module and a second analog signal input at a second port of the k th bridge module, to obtain a first component and a second component, and the k th bridge module outputs the first component at a fourth port of the k th bridge module, and inputs, at a third port of the k th bridge module, the second component to a second port of a (k−1) th bridge module in the n bridge modules, to use the second component as a second analog signal of the second port of the (k−1) th bridge module, wherein k is an integer greater than 1 and less than or equal to n.

14. The access network device according to claim 13 , wherein

[

P

0

P

1

P

2

P

3

…

…

P

n

-

1

]

=

Umatrix

*

[

p

⁢

0

p

⁢

1

p

⁢

2

p

⁢

3

…

…

p

n

-

1

]

,

[

P

0

P

1

P

2

P

3

…

…

P

n

-

1

]

is a matrix comprising a sum of output components of fourth ports of all of the n bridge modules, a first weighting matrix is

Umatrix

=

1

2

⁢

(

S

-

D

*

S

(

2

*

S

-

D

*

S

)

)

,

S

=

[

0

1

0

…

…

0

…

…

0

…

…

1

1

0

0

0

]

,

is an n*n matrix,

D

=

[

e

-

i

⁡

(

2

⁢

πδ

0

)

0

…

0

0

e

-

i

⁡

(

2

⁢

πδ

1

)

…

…

…

…

…

0

0

0

…

e

-

i

⁡

(

2

⁢

πδ

n

-

1

)

]

,

D is an n*n matrix, e −i(x) is a complex exponential function whose base is a natural number e, δ 0 is a wavelength trip corresponding to a line length of a connection line between the second port of the 1 st bridge module of the bridge network and a third port of a bridge module connected to the second port of the 1 st bridge module, δ 1 is a wavelength trip corresponding to a line length of a connection line between a second port of a 2 nd bridge module of the bridge network and a third port of a bridge module connected to the second port of the 2 nd bridge module, δ n−1 is a wavelength trip corresponding to a line length of a connection line between the second port of the n th bridge module of the bridge network and a third port of a bridge module connected to the second port of the n th bridge module, and

[

p

⁢

0

p

⁢

1

p

⁢

2

p

⁢

3

…

…

p

n

-

1

]

is a matrix comprising a first analog signal of a first port of each of the n bridge modules.

15. The access network device according to claim 13 , wherein the antenna system further comprises a control module, wherein the control module is configured to set a line length of a connection line between the n bridge modules, and wherein the line length of the connection line between the n bridge modules is used to control a proportion value of output signals of first ports of the n bridge modules.

16. The access network device according to claim 14 , wherein the antenna system further comprises a digital signal processing module and a digital-to-analog conversion module, the digital signal processing module is connected to a first terminal of the digital-to-analog conversion module, and a second terminal of the digital-to-analog conversion module is connected to the bridge network;

wherein the digital signal processing module is configured to perform second weighting processing on a first multi-path digital signal received by the digital signal processing module, to obtain a second multi-path digital signal, wherein the second weighting processing is implemented by using a second weighting matrix, the second weighting matrix is an n*m matrix, n is a quantity of bridge modules comprised in the antenna system, m is a quantity of signals comprised in the first multi-path digital signal, and m is an integer greater than o and less than or equal to n;

wherein the second weighting matrix meets any one of the following conditions:

column vectors of the second weighting matrix are orthogonal;

each column vector of the second weighting matrix is orthogonal to one or more row vectors of the first weighting matrix; or

the second weighting matrix is obtained by performing conjugate transposition on the first weighting matrix; and

wherein the digital-to-analog conversion module is configured to perform digital-to-analog conversion on the second multi-path digital signal, to obtain a first multi-path analog signal, wherein the first multi-path analog signal comprises a first analog signal of a first port of m of the n bridge modules.

17. The access network device according to claim 16 , wherein the first multi-path digital signal comprises:

m layers of multiple-input multiple-output (MIMO) transmit signals;

signals sent by m users;

signals sent by m cells; or

signals sent in m beam directions.

18. The access network device according to claim 13 , wherein each bridge module is an intra-band combiner.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (28)