mmWave CMOS IC-Based RIS Array and Base Station Collaborative Communication Technology
Technology Introduction:
To enable high-data-rate, low-latency, and wideband communications for B5G/6G systems, millimeter-wave signals must overcome the challenges of signal blockage and limited coverage. ITRI has developed a scalable millimeter-wave CMOS IC-based Reconfigurable Intelligent Surface (RIS) array module. Each array element integrates an in-house developed CMOS RIS chip with power consumption of less than 1 mW for dual-polarized reflection phase control. The module can be configured into RIS arrays of different sizes for various communication scenarios, thereby successfully steering and optimizing signal propagation and extending base station coverage. ITRI has also developed a base station collaborative RIS communication technology. Based on channel state information reported by the user terminal, the base station can dynamically steer the reflected beams of the RIS module. Even while the user is moving, this technology enables reliable communication quality, paving the way for RIS to become a new network element in future 6G networks.
Industrial Applications:
The proposed low-power, dual-polarized CMOS IC RIS array technology enables intelligent control of electromagnetic wave reflections, effectively overcoming the challenges of signal blockage and limited coverage in millimeter-wave communications. It has broad application potential in 6G base stations, smart factories, smart cities, private networks, and high-speed wireless access, enhancing communication quality and coverage.
Industrial Technology Research Institute
ITRI is a world-leading applied technology research institute with more than 6,500 outstanding employees. Its mission is to drive industrial development, create economic value, and enhance social well-being through technology R&D. Founded in 1973, it pioneered in IC development and started to nurture new tech ventures and deliver its R&D results to industries. ITRI has set up and incubated companies such as TSMC, UMC, Taiwan Mask Corp., Epistar Corp., Mirle Automation Corp., and Taiwan Biomaterial Co.
Contact Information
Name：Wei-Yu Li
Tel：03-591-4764
Address：No. 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu County 310401, Taiwan (R.O.C.)
