US-12627342-B2 - Method for transmitting Laguerre-Gaussian beams using multi-uniform circular antenna, method for receiving Laguerre-Gaussian beams. and communication system using multi-uniform circular antenna

US12627342B2US 12627342 B2US12627342 B2US 12627342B2US-12627342-B2

Abstract

Proposed is a communication system using a multi-uniform circular antenna. The system may include a transmission apparatus including at least one of transmission-side multi-uniform circular antennas configured to transmit a plurality of Laguerre-Gaussian (LG) beams. The system may also include a reception apparatus including at least one of reception-side multi-uniform circular antennas configured to receive the plurality of LG beams. A number of the at least one of the reception-side multi-uniform circular antennas may be set corresponding to a number of the at least one of the transmission-side multi-uniform circular antennas.

Inventors

Joonhyuk Kang
Seong Hoon Yoo
Sang Uk Park

Assignees

KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Dates

Publication Date: 20260512
Application Date: 20240725
Priority Date: 20231226

Claims (8)

1 . A transmission method using a multi-uniform circular antenna, the transmission method comprising: processing, by at least one of digital beam formers for forming a plurality of Laguerre-Gaussian (LG) beams, baseband precoding; processing, by at least one of quantization analog beam formers, sub-array beam forming and polarization on the plurality of LG beams output from the at least one of the digital beam formers; and transmitting the plurality of LG beams generated by the sub-array beam forming and polarization through at least one of transmission-side multi-uniform circular antennas, wherein the at least one of the digital beam formers is configured to process the baseband precoding for forming the plurality of LG beams, wherein the at least one of the quantization analog beam formers is configured to transmit the plurality of LG beams through the at least one of the transmission-side multi-uniform circular antennas by processing the sub-array beam forming and polarization on the plurality of LG beams output from the at least one of the digital beam formers, and wherein an LG wave equation is modeled in the at least one of the digital beam formers on the basis of a transmission/reception characteristic value of the at least one of the transmission-side multi-uniform circular antennas and at least one of reception-side multi-uniform circular antennas.
2 . The transmission method of claim 1 , wherein the transmission/reception characteristic value is obtained by measuring a distance between the at least one of the transmission-side multi-uniform circular antennas and the at least one of the reception-side multi-uniform circular antennas through a channel estimation method.
3 . A reception method using a multi-uniform circular antenna, the method comprising: receiving a plurality of Laguerre-Gaussian (LG) beams through at least one of reception-side multi-uniform circular antennas; processing, by at least one of quantization analog reception beam formers, polarization on the plurality of LG beams and sub-array reception beam forming on the plurality of LG beams; and processing, by at least one of digital reception beam formers, baseband post-coding on a result of the sub-array reception beam forming, wherein a number of the at least one of the reception-side multi-uniform circular antennas is set corresponding to a number of at least one of transmission-side multi-uniform circular antennas, and a number of the at least one of the quantization analog reception beam formers is set corresponding to the number of the at least one of the reception-side multi-uniform circular antennas, and wherein an LG wave equation is modeled in the at least one of the digital reception beam formers on the basis of a transmission/reception characteristic value of the at least one of the transmission-side multi-uniform circular antennas and the at least one of the reception-side multi-uniform circular antennas.
4 . The reception method of claim 3 , wherein the transmission/reception characteristic value is obtained by measuring a distance between the at least one of the transmission-side multi-uniform circular antennas and the at least one of the reception-side multi-uniform circular antennas through a channel estimation method.
5 . A communication system using a multi-uniform circular antenna, the system comprising: a transmission apparatus including at least one of transmission-side multi-uniform circular antennas configured to transmit a plurality of Laguerre-Gaussian (LG) beams; and a reception apparatus including at least one of reception-side multi-uniform circular antennas configured to receive the plurality of LG beams, wherein a number of the at least one of the reception-side multi-uniform circular antennas is set corresponding to a number of the at least one of the transmission-side multi-uniform circular antennas, wherein the transmission apparatus includes: at least one of digital beam formers configured to process baseband precoding for forming the plurality of LG beams, and at least one of quantization analog beam formers configured to transmit the plurality of LG beams through the at least one of the transmission-side multi-uniform circular antennas by processing sub-array beam forming and polarization on the plurality of LG beams output from the at least one of the digital beam formers, wherein the reception apparatus includes at least one of quantization analog reception beam formers configured to process polarization on the plurality of LG beams and sub-array reception beam forming on the plurality of LG beams; and at least one of digital reception beam formers configured to process baseband post-coding on a result output from the at least one of the quantization analog reception beam formers, wherein a number of the at least one of the quantization analog reception beam formers is set corresponding to the number of the at least one of the reception-side multi-uniform circular antennas, and wherein an LG wave equation is modeled in the at least one of the digital beam formers on the basis of a transmission/reception characteristic value of the at least one of the transmission-side multi-uniform circular antennas and the at least one of the reception-side multi-uniform circular antennas.
6 . The communication system of claim 5 , wherein the transmission/reception characteristic value is configured to be obtained by measuring a distance between the at least one of the transmission-side multi-uniform circular antennas and the at least one of the reception-side multi-uniform circular antennas through a channel estimation method.
7 . The communication system of claim 5 , wherein the LG wave equation is configured to be modeled in the at least one of the digital reception beam formers on the basis of the transmission/reception characteristic value of the at least one of the transmission-side multi-uniform circular antennas and the at least one of the reception-side multi-uniform circular antennas.
8 . The communication system of claim 7 , wherein the transmission/reception characteristic value is configured to be obtained by measuring a distance between the at least one of the transmission-side multi-uniform circular antennas and the at least one of the reception-side multi-uniform circular antennas through a channel estimation method.

Description

STATEMENT REGARDING GOVERNMENT SPONSORED RESEARCH OR DEVELOPMENT This work was supported by Institute of Information & communications Technology Planning & Evaluation (IITP) grant funded by Korea government (MSIT; Ministry of Science and ICT) (No. 2019-0-00500, Development of Spatial Multiplexing Transmission Technology for 6th Generation Mobile Communications, and No. 2020-0-01787, Development of Convergent Communication and Computing Innovation Technology for Superintelligent Services). CROSS-REFERENCE TO RELATED APPLICATION This application claims priority to Korean Patent Application No. 10-2023-0190676, filed on Dec. 26, 2023, the entirety of which is incorporated herein by reference for all purposes. TECHNICAL FIELD The present disclosure relates to a transmission apparatus, a transmission method, and a reception apparatus using a multi-uniform circular antenna (multi-uniform circular array), and a communication system for the transmission apparatus, the transmission method, and the reception apparatus. BACKGROUND A wireless communication system is advancing to a 6th generation (6G) core technology based on a sub-THz band to be able to support more users and more services. SUMMARY One aspect is a communication system that transmits and receives a plurality of Laguerre-Gaussian beams not only using a multi-uniform circular antenna, but also using quantization sub-array beam forming and polarization, a transmission method and apparatus for the communication system, and a reception method and apparatus for the communication system. The aspects of the present disclosure are not limited to those disclosed herein, and other aspects not mentioned herein will be clearly understood by those skilled in the art from the following description. Another aspect is a transmission apparatus using a multi-uniform circular antenna, the apparatus comprising: at least one of transmission-side multi-uniform circular antennas configured to transmit a plurality of Laguerre-Gaussian (LG) beams; at least one of digital beam former configured to process baseband precoding for forming the plurality of LG beams; and at least one of quantization analog beam formers configured to transmit the plurality of LG beams through the at least one of the transmission-side multi-uniform circular antenna by processing sub-array beam forming and polarization on the plurality of LG beams output from the at least one of digital beam formers, wherein a number of the at least one of digital beam formers is set corresponding to a number of the at least one of transmission-side multi-uniform circular antennas and a number of at least one of reception-side multi-uniform circular antennas, and a number of at least one of quantization analog beam formers is set corresponding to the number of the at least one of transmission-side multi-uniform circular antennas. Another aspect is a reception apparatus using a multi-uniform circular antenna, the apparatus comprising: at least one of reception-side multi-uniform circular antennas configured to receive a plurality of Laguerre-Gaussian (LG) beams; at least one of quantization analog reception beam formers configured to process polarization on the plurality of LG beams and sub-array reception beam forming on the plurality of LG beams; and at least one of digital reception beam formers configured to process baseband post-coding on a result output from the at least one of the quantization analog reception beam formers, wherein a number of the at least one of the reception-side multi-uniform circular antennas is set corresponding to a number of at least one of transmission-side multi-uniform circular antennas, and a number of at least one of quantization analog reception beam formers is set corresponding to the number of the at least one of the reception-side multi-uniform circular antennas. Another aspect is a transmission method using a multi-uniform circular antenna, the method comprising: processing, by at least one of digital beam formers for forming a plurality of Laguerre-Gaussian (LG) beams, baseband precoding; processing, by at least one of quantization analog beam formers, sub-array beam forming and polarization on the plurality of LG beams output from the at least one of the digital beam former; and transmitting the plurality of LG beams generated by sub-array beam forming and polarization through at least one of transmission-side multi-uniform circular antennas, wherein a number of the at least one of digital beam formers is set corresponding to a number of the at least one of transmission-side multi-uniform circular antennas and a number of at least one of reception-side multi-uniform circular antennas, and a number of at least one of quantization analog beam formers is set corresponding to the number of the at least one of transmission-side multi-uniform circular antennas. Another aspect is a reception method using a multi-uniform circular antenna, the method comprising: receiving a plurality of L