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ZTE Corporation, a global provider of ICT solutions, has successfully conducted application verification of 5G-A reconfigurable intelligent surface (RIS) in collaboration with China Mobile Research Institute and China Mobile’s Zhejiang Branch. This verification was carried out at the cycling stadium for the 19th Asian Games in Hangzhou.

As the telecommunication service partner for the Asian Games, China Mobile is responsible for providing network assurance. However, the increasing demand for high-quality network coverage in stadiums, especially for HD live broadcasts, has posed challenges for operators. They must find ways to reduce network construction difficulties and investment costs while maintaining network quality.

By utilizing intelligent dynamic coordination technology, ZTE, China Mobile Research Institute, and China Mobile’s Zhejiang Branch achieved beam scanning and user tracing with the 5G-A RIS. This technology improves signal coverage quality and user rate, meeting the large-capacity service requirements of the Asian Games stadium. Additionally, it lays the foundation for future network development, enabling higher speeds, communication, and supporting network evolution.

RIS, a multi-antenna technology derived from electromagnetic metamaterials, is considered a key technology in the 5G-A and 6G phases. It optimizes base station signal propagation and beam control, enhancing 5G signal quality and expanding base station coverage. With its low costs and low power consumption, RIS has significant potential for future network development.

The dynamic RIS applied in the cycling stadium introduces coordination technologies between the base station and RIS, utilizing automatic angle optimization proposed by China Mobile Research Institute for beam control. This solution further enhances base station coverage and ensures high-quality user experience in mobile scenarios, paving the way for RIS applications.

Notable improvements were observed after deploying the dynamic RIS in the cycling stadium. The maximum Reference Signal Receiving Power (RSRP) increased by 20dB, and the uplink and downlink user rates improved significantly. Additionally, the RIS reflection beam closely tracks users as they move around the stadium, maintaining signal strength and user rate in real-time.

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