Market Context — Why This Technology, Why Now

Global demand for high-speed, low-latency wireless communication is accelerating due to the expansion of 5G/6G networks, the proliferation of IoT, and the rise of autonomous systems. Efficient spectrum utilization is paramount as frequency resources become increasingly scarce and expensive. This technology offers a critical solution by maximizing throughput within existing bandwidths, reducing infrastructure costs, and enhancing communication reliability across diverse applications.

Key Competitive Advantages
01

Increases Communication Efficiency by 1.5x through simultaneous transmission and reception in the same frequency band.

02

Eliminates Amplifier Distortion Effects by performing self-interference cancellation in the intermediate frequency (IF) band, stabilizing communication quality.

03

Reduces Circuit Size by up to 20% by shifting complex RF-band processing to the IF band, simplifying design and lowering power consumption.

Market Opportunity
5G/6G Communication Infrastructure
$6.5B+ globally (AI est.)
Increased demand for high-speed, high-capacity communication makes improved frequency utilization efficiency essential. This technology could significantly enhance the performance of base stations and repeaters.
Tier 1 telecom equipment manufacturers 5G/6G network operators Infrastructure solution providers
IoT Devices
$300M–$400M domestically (AI est.)
For the rapidly increasing number of devices in smart factories and smart homes, this technology could enable real-time communication with low latency and high reliability.
Smart factory solution providers Smart home device manufacturers Industrial IoT module developers
Satellite Communication
$3B–$4B globally (AI est.)
Under the constraints of limited satellite resources and long-distance communication, this technology could maximize data throughput and enhance communication provision to regions lacking terrestrial infrastructure.
Satellite communication service providers Satellite modem manufacturers Aerospace and defense contractors
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a self-interference cancellation circuit, specifically its intermediate frequency processing approach, which enables high-efficiency in-band full-duplex wireless communication. The patent was granted after successful amendments and arguments against prior art, indicating strong differentiation and robust claim stability.

Competitive White Space

This patent primarily covers IF-band self-interference cancellation. White space exists in integrating this technology with advanced antenna array designs or exploring novel RF-domain cancellation techniques for hybrid solutions.

Economic Impact
~$350K/year estimated communication infrastructure cost savings per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Assuming a 1.5x improvement in frequency utilization efficiency for existing communication infrastructure. In a scenario requiring ~$0.5M/year (AI est.) in new communication infrastructure investment, this technology could reduce that by 50%, leading to an estimated ~$350K/year (AI est.) in capital expenditure savings.

Speed to Market
6× faster than in-house development
This technology was invented by the National Institute of Information and Communications Technology (NICT), indicating significant progress in fundamental research and proof-of-concept experiments. The self-interference cancellation algorithm is established, and the specific implementation approach via intermediate frequency processing suggests that licensees could shorten their in-house development time by approximately 2.5 years, enabling rapid market entry.
Competitive Positioning

X: Communication Efficiency (Data Throughput)
Y: Ease of Integration (System Compatibility)

Business Models & Applications
💰 Technology Licensing
Licensing the patent rights for this technology to communication equipment manufacturers and infrastructure operators could shorten their development cycles, enhance market competitiveness, and generate royalty revenue.
📦 Communication Module Development & Sales
Developing and selling high-efficiency self-interference cancellation modules incorporating this technology to IoT device manufacturers and system integrators could open new market opportunities.
🤝 Joint Research & Contract Development
Collaborating with telecommunication providers or defense-related companies on customized development for specific industrial sectors or applications could expand the technology's scope and offer new solutions.
Adjacent Application Opportunities
🛰️ Satellite Communication
Next-Gen Satellite Modem Application
Applying this technology to satellite-borne communication modems could maximize data transmission and reception efficiency between ground stations within limited bandwidth and power constraints, significantly boosting satellite communication service capacity and speed by up to 1.5x.
🚗 Autonomous Driving
Low-Latency V2X Communication for Autonomous Vehicles
In V2V (vehicle-to-vehicle) and V2I (vehicle-to-infrastructure) communication for autonomous vehicles, efficiently canceling self-interference could enable highly real-time information exchange, potentially reducing communication latency by 30% and contributing to accident prevention and traffic flow optimization.
🏭 Smart Factory
Enhanced Industrial IoT Device Communication
In environments where numerous sensors and robots communicate within smart factories, integrating this technology could reduce radio interference effects by up to 40%, establishing a stable wireless communication foundation. This is expected to improve production line efficiency and reduce downtime.
Integration Roadmap — Estimated 18-Month Deployment
Phase 1: Technical Feasibility & Basic Design
Duration: 3 months
Evaluate compatibility with the licensee's existing wireless communication systems and product roadmap, then define the architecture and interfaces for integrating this technology.
Phase 2: Prototype Development & Performance Validation
Duration: 6 months
Develop a prototype of the intermediate frequency processing circuit based on the design. Validate key metrics such as self-interference cancellation performance, communication efficiency, and power consumption under near-real-world conditions, followed by optimization.
Phase 3: Implementation & Commercialization Preparation
Duration: 9 months
Finalize implementation design for commercial products based on validation results and prepare for mass production. This phase also includes confirming compliance with regulatory requirements and developing market entry strategies.
Technical Feasibility
This technology utilizes an 'intermediate frequency processing circuit' architecture, allowing for easy integration into the intermediate frequency stage of existing wireless communication systems. By avoiding complex physical layer changes at the RF stage and enabling implementation via a Software-Defined Radio (SDR) approach, it minimizes impact on current infrastructure, ensuring smooth adoption. Its compatibility with general-purpose DSPs and FPGAs also suggests a low barrier to new capital investment.
Success Scenario
Implementing this technology could potentially increase the bandwidth utilization efficiency of current wireless communication systems by up to 1.5 times. This would enable the transmission and reception of more data within limited frequency resources, significantly reducing the estimated costs associated with securing new frequency bands. Furthermore, stabilizing communication quality could lead to improved service quality and enhanced customer satisfaction.
Patent Record
APPLICATION NO.
特願2020-167139
REGISTRATION NO.
7561417
FILING DATE
2020/10/01
GRANT DATE
2024/09/26
EXPIRATION DATE
2040/10/01
PATENT HOLDER
国立研究開発法人情報通信研究機構
Examination History
2023年09月07日
出願審査請求書
2024年06月04日
拒絶理由通知書
2024年07月30日
手続補正書（自発・内容）
2024年07月30日
意見書
2024年09月10日
特許査定