Apparatus including DMA and method for optimizing DMA elements thereof

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Optimizing DMA elements in dynamic metasurface antennas addresses the CAPEX and OPEX issues in mMIMO systems by enhancing energy efficiency, data transmission speed, and adaptability, while reducing system complexity and costs.

KR103000665B1Active Publication Date: 2026-08-05FOUND FOR RES & BUSINESS SEOUL NAT UNIV OF SCI & TECH

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Patent Information

Application Number: KR1020250014820
Authority / Receiving Office: KR · KR
Patent Type: Patents
Current Assignee / Owner
Filing Date: 2025-02-06
Publication Date: 2026-08-05
Estimated Expiration: 2045-02-06

Application Information

Patent Timeline

06 Feb 2025

Application

KR1020250014820

05 Aug 2026

Publication

KR103000665B1

IPC: H04B7/0456; H01Q15/00; H04B17/336; H04W24/02

CPC: H04B7/0456; H01Q15/0086; H04B17/336; H04W24/02

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Application Domain

Radio transmission Transmission monitoring

Technology Topics

Parallel computing Computer engineering

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AI Technical Summary

Technical Problem

The high capital expenditures (CAPEX) and operating expenses (OPEX) associated with each antenna having its own RF chain in Massive Multiple-Input Multiple-Output (mMIMO) systems are significant challenges, necessitating the development of alternative antenna architectures like dynamic metasurface antennas (DMAs) to optimize DMA elements.

Method used

A method for optimizing DMA elements in a transmitting device with a dynamic metasurface antenna involves defining a DMA weight matrix, setting an optimization objective function, and calculating optimization coefficients using various spatial modulation control methods to maximize signal-to-noise ratio (SNR) or spectral efficiency, thereby reducing system complexity and costs.

Benefits of technology

This approach maximizes energy efficiency, data transmission speed, and adaptability while minimizing system complexity and operating costs, improving communication stability and signal strength through suitable spatial modulation methods.

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Abstract

The present invention relates to a transmitting device including a dynamic metasurface antenna and a method for optimizing DMA elements therein, wherein a DMA weight matrix for activating DMA elements is defined in correspondence with at least one DMA spatial modulation control method, an optimization objective function for the defined DMA weight matrix is defined according to the DMA spatial modulation control method, and an optimization coefficient for activating DMA elements is calculated using the defined optimization objective function.

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