Signal Processing Method and Related Apparatus

Abstract

An antenna includes: a dielectric plate provided with a first surface and a second surface; a ground plane located on the first surface; and an antenna unit. A size of the antenna unit is a preset length, the antenna unit includes at least three antenna elements in a ring arrangement, and each antenna element includes a first patch, a second patch, and a third patch that are located on the second surface, and three conductive portions that penetrate through the first surface and the second surface. A first conductive portion is electrically connected between a feeding portion and the first patch to form a monopole, a second conductive portion is electrically connected between the ground plane and the second patch to form a first parasitic body, a third conductive portion is electrically connected between the ground plane and the third patch to form a second parasitic body, and the first parasitic body and the second parasitic body are located on both sides of the monopole and are configured to isolate adjacent antenna elements in the ring arrangement.

Description

Claims

1. An antenna, comprising: a dielectric plate comprising a first surface and a second surface;a ground plane on the first surface; andan antenna circuit, wherein a size of the antenna circuit is a preset length, the antenna circuit comprises at least three antenna elements in a ring arrangement, and each antenna element of the at least three antenna elements comprises a first patch, a second patch, and a third patch that are located on the second surface, three conductive portions that penetrate through the first surface and the second surface, and a feeding portion connected to the first surface, wherein in each antenna element the first conductive portion is electrically connected between the feeding portion and the first patch of the respective antenna element to form a monopole, a second conductive portion is electrically connected between the ground plane and the second patch of the respective antenna element to form a first parasitic body, a third conductive portion is electrically connected between the ground plane and the third patch of the respective antenna element to form a second parasitic body, and the first parasitic body and the second parasitic body are located on both sides of the monopole of the respective antenna element and are configured to isolate adjacent antenna elements in the ring arrangement.

2. The antenna according to claim 1, wherein the preset length is half a wavelength.

3. The antenna according to claim 1, wherein either of the first parasitic body or the second parasitic body is located between monopoles of the adjacent antenna elements in the at least three antenna elements.

4. The antenna according to claim 1, wherein the first patch, the second patch, and the third patch of at least one antenna element of the at least three antenna elements are electrically connected; or gaps are among the first patch, the second patch, and the third patch of at least one antenna element of the at least three antenna elements.

5. The antenna according to claim 1, wherein a gap or an electrical connection is between the second patch of at least one antenna element of the at least three antenna elements and a third patch of an adjacent antenna element.

6. The antenna according to claim 5, wherein the second patch of the at least one antenna element of the at least three antenna elements and the third patch of the adjacent antenna element are electrically connected to at least two conductive portions, and the at least two conductive portions are electrically connected to the ground plane.

7. The antenna according to claim 1, wherein a conductive portion corresponding to the second patch of the at least three antenna elements is a conductive portion corresponding to the third patch of the adjacent antenna element.

8. The antenna according to claim 1, wherein the ring arrangement comprises a first ring arrangement and a second ring arrangement, and the first ring arrangement is obtained by rotating the second ring arrangement by a preset angle at a geometric center of the antenna.

9. An apparatus, comprising: a processor; andat least one memory storing a program that is executable by the processor, the program including instructions for: sending a first reference signal;receiving first indication information sent by a receiving end device, wherein the first indication information indicates a first precoding matrix, and the first precoding matrix is determined based on the first reference signal;determining a second precoding matrix based on the first indication information; andsending data precoded based on the second precoding matrix to the receiving end device;wherein sending the first reference signal comprises: sending a second reference signal on a first virtual port of the apparatus;receiving a third reference signal that is sent by the receiving end device to the apparatus on a first virtual port of the receiving end device, wherein the first virtual port of the receiving end device is determined based on first angle of arrival information, and the first angle of arrival information is determined by the receiving end device based on the second reference signal;determining second angle of arrival information based on the third reference signal; andsending the first reference signal to the receiving end device on a second virtual port of the apparatus based on the second angle of arrival information.

10. The apparatus according to claim 9, wherein sending the first reference signal to the receiving end device on the second virtual port of the apparatus based on the second angle of arrival information comprises: determining a third precoding matrix based on the second angle of arrival information, wherein the third precoding matrix is a precoding matrix of antenna elements in a first antenna circuit of the apparatus, the third precoding matrix comprises a matrix with n rows and m columns, n is a quantity of antenna elements in the first antenna circuit of the apparatus, and m is a quantity of second virtual ports in the first antenna circuit of the apparatus; andsending the first reference signal to the receiving end device on virtual ports indicated by the m columns in the third precoding matrix.

11. The apparatus according to claim 10, wherein: the second angle of arrival information is greater than or equal to a first threshold, and the third precoding matrix is used to generate first polarization and second polarization, or the third precoding matrix is used to generate first polarization and third polarization;the second angle of arrival information is greater than or equal to a second threshold and the second angle of arrival information is less than a first threshold, and the third precoding matrix is a used to generate first polarization, second polarization, and third polarization; orthe second angle of arrival information is less than a second threshold, and the third precoding matrix is used to generate second polarization and third polarization.

12. The apparatus according to claim 9, wherein: the second precoding matrix is determined based on the first precoding matrix and the third precoding matrix, and the second precoding matrix is a precoding matrix of an antenna of the apparatus.

13. The apparatus according to claim 9, wherein: the first precoding matrix comprises a matrix with e rows and f columns, wherein e is a quantity of second virtual ports of x antenna circuits of the apparatus, f is a quantity of data streams transmitted through the second virtual ports of the x antenna circuits of the apparatus, and the x antenna circuits are configured to send the first reference signal.

14. The apparatus according to claim 9, wherein: the second precoding matrix comprises a matrix with i rows and j columns, wherein i is a quantity of all antenna elements in the x antenna circuits of the apparatus, and j is a quantity of data streams transmitted by all antenna elements in the x antenna circuits of the apparatus.

15. The apparatus according to claim 9, wherein the first precoding matrix is 100000010000001000000100000010000001,the third precoding matrix is1111−1−11j−j1−jj,and the second precoding matrix is1110001−1−10001j−j0001−jj0000001110001−1−10001j−j0001−jj,wherein 1 in any row of the first precoding matrix indicates to transmit, on a second virtual port corresponding to 1 in any row, a data stream in a column in which 1 in any row is located by using an excitation signal whose amplitude is 1 and phase is 0°; in the third precoding matrix, 1 indicates an excitation signal whose amplitude is 1 and phase is 0°, -1 indicates an excitation signal whose amplitude is 1 and phase is 180°, j indicates an excitation signal whose amplitude is 1 and phase is 90°, and -j indicates an excitation signal whose amplitude is 1 and phase is -90°.

16. An apparatus, comprising: a processor; andat least one memory storing a program that is executable by the processor, the program including instructions for: receiving a first reference signal;determining first indication information based on the first reference signal, wherein the first indication information indicates a first precoding matrix;sending the first indication information to a transmitting end device; andreceiving data that is precoded based on a second precoding matrix and that is sent by the transmitting end device, wherein the second precoding matrix is determined based on the first indication information; andwherein receiving the first reference signal comprises: receiving a second reference signal sent by the transmitting end device on a first virtual port of the transmitting end device;determining first angle of arrival information based on the second reference signal;sending a third reference signal to the transmitting end device on a first virtual port of the apparatus based on the first angle of arrival information; andreceiving the first reference signal that is sent by the transmitting end device to the apparatus on a second virtual port of the transmitting end device, wherein the second virtual port of the transmitting end device is determined based on second angle of arrival information, and the second angle of arrival information is determined by the transmitting end device based on the third reference signal.

17. The apparatus according to claim 16, wherein sending the third reference signal to the transmitting end device on the first virtual port of the apparatus based on the first angle of arrival information comprises: determining a fourth precoding matrix based on the first angle of arrival information, wherein the fourth precoding matrix is a precoding matrix of antenna elements in a first antenna circuit of the apparatus, the fourth precoding matrix comprises a matrix with p rows and q columns, p is a quantity of antenna elements in the first antenna circuit of the apparatus, and q is a quantity of first virtual ports in the first antenna circuit of the apparatus; andsending the third reference signal to the transmitting end device on virtual ports indicated by the q columns in the fourth precoding matrix.

18. The apparatus according to claim 17, wherein: the first angle of arrival information is greater than or equal to a first threshold, and the fourth precoding matrix is used to generate first polarization and second polarization, or the fourth precoding matrix is used to generate first polarization and third polarization.

19. The apparatus according to claim 17, wherein: the first angle of arrival information is greater than or equal to a second threshold and the first angle of arrival information is less than a first threshold, and the fourth precoding matrix is used to generate first polarization, second polarization, and third polarization.

20. The apparatus according to claim 17, wherein: the first angle of arrival information is less than a second threshold, and the fourth precoding matrix is used to generate second polarization and third polarization.