Market Context — Why This Technology, Why Now

The rapid expansion of IoT devices and the transition to 5G/Beyond 5G networks are creating unprecedented demands on wireless infrastructure. Operators face pressure to increase capacity, reduce latency, and lower operational costs while managing a massive influx of connected devices. This technology directly supports these trends by optimizing spectrum utilization and enhancing multi-device connection stability, offering a critical solution for scalable and efficient network evolution.

Key Competitive Advantages
01

Maximizes Processing Efficiency: Identifies communication similarity among wireless terminals to apply common self-interference cancellation patterns, potentially reducing processing load by up to 30% and significantly improving base station resource efficiency.

02

Optimizes for Communication Conditions: Dynamically selects the optimal self-interference cancellation method based on communication conditions between the base station and each wireless terminal, enhancing communication quality stability across diverse environments.

03

Establishes Stable IP Foundation: Patentability was confirmed after rigorous examination against four prior art documents, ensuring a robust and defensible right to support business expansion.

Market Opportunity
📱 5G/Beyond 5G Infrastructure
$20B globally (AI est.)
Essential for next-generation communication infrastructure to handle increasing data traffic and low-latency demands.
Tier 1 telecom infrastructure providers 5G/6G network equipment manufacturers Mobile network operators
🏭 Industrial IoT / Smart Factory
$1B globally (AI est.)
High-efficiency wireless communication is required in factory environments demanding numerous device connections and real-time control.
Industrial automation solution providers Smart factory equipment OEMs Enterprise wireless network integrators
🏙️ Smart City / MaaS
$550M globally (AI est.)
Efficient frequency utilization and stable communication are crucial for numerous sensors and vehicle-to-everything (V2X) communication.
Smart city technology developers Urban mobility (MaaS) platform providers Public safety communication system vendors
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects the core technical feature of using common self-interference cancellation patterns based on similarity detection among wireless terminals in a full-duplex system. Its claims were rigorously examined and upheld against prior art, establishing a robust and clearly defined scope of protection.

Competitive White Space

While this patent covers optimized self-interference cancellation, it does not explicitly extend to advanced antenna array designs (e.g., massive MIMO) or novel modulation schemes. A licensee could develop complementary IP in these areas to further enhance overall system performance without direct conflict.

Economic Impact
~$1.2M/year estimated operational cost savings per large-scale operator (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Implementing this technology could improve base station processing capacity, potentially reducing the number of required base stations by 10% while maintaining equivalent communication capacity. Additionally, improved processing efficiency is estimated to reduce annual power consumption by 15%. For a large telecommunications operator with 1,000 base stations, each incurring an annual operating cost (power, maintenance, etc.) of ~$15K (AI est.), the total annual cost savings could be calculated as: (1,000 stations × $15K/station × 10% reduction) + (1,000 stations × $15K/station × 15% power reduction) = ~$1.2M (AI est.) in annual cost savings.

Speed to Market
6× faster than in-house development
This technology is based on research by the National Institute of Information and Communications Technology (NICT), suggesting that the core self-interference cancellation algorithm is well-established. The logic for efficiency improvement through common pattern application is also detailed, indicating that proof-of-concept may be complete. Licensees could focus on system integration into existing wireless communication infrastructure and parameter tuning for specific operational environments, potentially shortening development time by approximately 2.5 years compared to in-house development, enabling faster market entry and monetization.
Competitive Positioning

X: Communication Efficiency & Throughput
Y: Multi-Terminal Connection Stability

Business Models & Applications
💻 Software Licensing
This model involves providing the technology as a software update for existing wireless base station infrastructure, improving communication efficiency while minimizing capital expenditure.
📡 Full-Duplex Base Station Module Development
Develop and offer high-efficiency full-duplex communication base station modules incorporating this technology to telecommunication equipment manufacturers and system integrators.
⚙️ Application-Specific Solutions
Construct and provide specialized wireless communication systems leveraging this technology for specific sectors requiring high-density, high-efficiency communication, such as Industrial IoT or Smart Cities.
Adjacent Application Opportunities
🛰️ Satellite Communication
Optimizing Satellite Broadband Efficiency
In full-duplex communication between ground stations and satellites, efficient self-interference cancellation directly translates to higher throughput. Applying this technology could maximize the use of limited satellite bandwidth, contributing to faster and more stable satellite broadband services, potentially increasing data rates by 1.5x.
🚗 Vehicular Communication (V2X)
Strengthening V2X for Autonomous Driving
Vehicle-to-everything (V2X) communication for autonomous driving requires high reliability and real-time information exchange. This technology could enhance communication stability and efficiency in multi-terminal environments, supporting the realization of safer autonomous driving systems by ensuring critical data exchange with minimal latency.
🚁 Drone Swarm Control
Coordinated Communication for Drone Swarms
For swarm control systems where numerous drones operate collaboratively, efficient full-duplex communication between each drone and the ground station is crucial. Applying this technology could suppress self-interference, enabling real-time data transmission and precise control from a multitude of drones, potentially increasing simultaneous drone connections by 50%.
Integration Roadmap — Estimated 19-Month Deployment
Phase 1: Feasibility & Design Adaptation
Duration: 5 months
Evaluate compatibility with existing licensee infrastructure, adjust core algorithm parameters, and define design principles tailored to the deployment environment.
Phase 2: Prototype Development & Testing
Duration: 9 months
Develop a prototype system incorporating this technology based on the design, then conduct functional and performance tests through simulations and in real-world environments to verify its effectiveness.
Phase 3: Operational Deployment & Optimization
Duration: 5 months
Deploy the system to the production environment, incorporating test results. Continuous performance monitoring after launch may be conducted to further optimize efficiency.
Technical Feasibility
This technology's design, as described in the patent, suggests it can be integrated into existing wireless communication systems, particularly through software updates or module additions on the base station side. Since self-interference cancellation primarily involves digital signal processing, it is highly compatible with existing infrastructure like Software Defined Radio (SDR) platforms, without requiring extensive hardware modifications. This indicates low technical hurdles for adoption and promises rapid implementation.
Success Scenario
Implementing this technology could significantly alleviate communication capacity constraints caused by self-interference in current base stations. This may increase the number of devices that can simultaneously connect within the same frequency band by up to 1.5 times, dramatically improving communication quality, especially in environments with high IoT device density. Consequently, it is expected to enhance service provision capacity by 20% while curbing capital expenditure on communication infrastructure expansion.
Patent Record
APPLICATION NO.
特願2020-057669
REGISTRATION NO.
7522428
FILING DATE
2020/03/27
GRANT DATE
2024/07/17
EXPIRATION DATE
2040/03/27
PATENT HOLDER
国立研究開発法人情報通信研究機構
Examination History
2020年04月14日
手続補正書(自発・内容)
2023年02月10日
出願審査請求書
2023年10月24日
拒絶理由通知書
2023年12月21日
手続補正書(自発・内容)
2023年12月21日
意見書
2024年03月05日
拒絶理由通知書
2024年03月12日
手続補正書(自発・内容)
2024年03月12日
意見書
2024年06月25日
特許査定