Market Context — Why This Technology, Why Now

The rapid expansion of IoT, AI-driven applications, and edge computing demands unprecedented network capacity and responsiveness. Traditional half-duplex systems struggle with spectral efficiency and latency in increasingly congested airwaves. This technology's ability to double effective bandwidth and maintain stable connections in dynamic environments is vital for supporting smart cities, autonomous vehicles, and advanced industrial automation, where communication reliability directly impacts safety and operational efficiency.

Key Competitive Advantages
01

Ensures stable self-interference cancellation by adaptively using optimized databases, even in dynamic communication environments.

02

Boosts frequency utilization efficiency by up to 1.8x compared to conventional half-duplex systems, enabling simultaneous transmission and reception on the same frequency band.

03

Establishes strong market advantage due to high originality, with only 3 prior art documents, enabling early market share capture.

Market Opportunity
🌐 5G/Beyond 5G Infrastructure
$33.5B–$33.5B globally (AI est.)
Increased data traffic and low-latency demands make improved frequency utilization essential. This technology is applicable to base stations and repeaters, contributing to infrastructure optimization.
Tier 1 telecom infrastructure providers Network equipment manufacturers Mobile network operators
🏭 Industrial IoT & Smart Factory
$3.5B–$3.5B globally (AI est.)
Real-time control of production lines and connection of numerous devices require highly reliable, low-latency wireless communication. This technology provides a stable communication environment.
Industrial automation solution providers Smart factory system integrators IoT device manufacturers
🚗 Autonomous Driving & MaaS
$20B–$20B globally (AI est.)
In environments where millisecond-level delays are unacceptable for vehicle-to-vehicle and vehicle-to-infrastructure communication, the stability and high speed provided by this technology will be crucial.
Automotive OEMs developing autonomous vehicles V2X communication module suppliers Smart city infrastructure developers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a novel method for generating a database to cancel self-interference in full-duplex wireless communication, specifically adapting to environmental fluctuations. The claims were rigorously examined and strengthened through a successful response to office actions, indicating a robust and clearly defined scope of protection.

Competitive White Space

This patent primarily covers software-defined database generation for self-interference cancellation. Opportunities exist for licensees to develop complementary hardware innovations in antenna design or advanced signal processing algorithms for specific full-duplex applications.

Economic Impact
~$2.5M/year estimated communication infrastructure cost reduction per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Assuming a 1.8x improvement in frequency utilization efficiency for a licensee's wireless network, this technology could reduce costs associated with acquiring additional spectrum or infrastructure expansion (estimated at ~$5.0M/year) by approximately 50%. This projects an annual cost reduction of ~$2.5M (AI est.).

Speed to Market
6× faster than in-house development
As a research outcome from the National Institute of Information and Communications Technology (NICT), the fundamental principles of this technology are well-established. The patent details specific database generation algorithms, enabling implementation based on proven data. Since the technology is primarily software-based, it can be readily integrated into existing wireless communication systems, significantly accelerating time-to-market compared to in-house development.
Competitive Positioning

X: Frequency Utilization Efficiency
Y: Communication Stability (Environmental Adaptability)

Business Models & Applications
📶 Communication Infrastructure Provision
Developing and providing base stations and repeaters equipped with this technology could contribute to improving communication providers' frequency efficiency and service quality.
⚙️ Industrial Solutions
Proposing highly reliable, low-latency wireless communication modules and systems utilizing this technology for smart factories and logistics warehouses, contributing to productivity improvements.
🛣️ In-Vehicle Communication Modules
Developing and selling communication modules incorporating this technology to enhance the stability of vehicle-to-vehicle and vehicle-to-infrastructure communication for autonomous vehicles, contributing to improved safety.
Adjacent Application Opportunities
🏥 Medical & Healthcare
High-Reliability Wireless System for Remote Healthcare
Applying this technology to wireless communication for surgical robots and vital sign monitors could enable stable, low-latency transmission of critical data, potentially reducing signal loss by over 90% and enhancing patient safety and operational efficiency in remote healthcare.
🛰️ Satellite Communication & Drones
Backhaul Link for Disaster Relief & Remote Areas
This technology could establish high-efficiency wireless backhaul links for emergency communication during disasters or in remote areas lacking fiber optic networks. Leveraging drones, it could enable rapid network deployment, providing stable data transmission with up to 1.8x greater spectral efficiency for critical operations.
Integration Roadmap — Estimated 18-Month Deployment
Technology Evaluation & Requirements Definition
Duration: 3 months
Evaluate technical compatibility with the licensee's existing systems, identify performance requirements based on use cases, and conduct initial design of database generation parameters.
Prototype Development & Validation
Duration: 6 months
Develop a prototype incorporating this technology and validate self-interference cancellation performance and communication stability under near-real-world conditions. Optimize the database.
Full-Scale Deployment & Optimization
Duration: 9 months
Based on validation results, initiate system deployment and operation in a production environment. Maximize performance through continuous data collection and database tuning.
Technical Feasibility
This technology is centered on database generation for self-interference cancellation and is primarily implementable via software control. It is anticipated that it can be integrated into existing wireless communication systems with minimal changes to antenna configurations or transceiver circuits, primarily through control software updates or the introduction of additional modules. Based on fundamental research by the National Institute of Information and Communications Technology (NICT), its technical feasibility is high.
Success Scenario
Upon adoption, communication providers could more efficiently utilize existing frequency bands, potentially increasing average user communication speeds by 20%. This could mitigate communication quality degradation during peak congestion in 5G/Beyond 5G services, enhancing customer satisfaction while enabling the deployment of new high-value services.
Patent Record
APPLICATION NO.
特願2021-056005
REGISTRATION NO.
7681293
FILING DATE
2021/03/29
GRANT DATE
2025/05/14
EXPIRATION DATE
2041/03/29
PATENT HOLDER
国立研究開発法人情報通信研究機構
Examination History
2024年02月15日
出願審査請求書
2024年12月10日
拒絶理由通知書
2025年02月06日
意見書
2025年02月06日
手続補正書（自発・内容）
2025年04月22日
特許査定