China has developed a new 6G communication technology that allows walls, building surfaces, and even underground structures to improve wireless signals while also acting as intelligent sensors.
The innovation is called Distributed Integrated Sensing and Communication Metasurface (DISACM). It received a Gold Award at the International Exhibition of Inventions Geneva.
The technology was created by researchers at Southeast University in Nanjing. The project is led by Professor Cheng Qiang and Academician Cui Tiejun, who is widely known for his work on information metamaterials. Their research focuses on making wireless communication systems smarter and more efficient.
Unlike traditional wireless networks, DISACM does more than simply transmit data. It strengthens communication signals while simultaneously monitoring the surrounding environment. This dual-purpose design helps reduce equipment needs and improves overall network efficiency.
How 6G Metasurface Tech Works
The system uses intelligent reconfigurable surfaces, which are specially designed electromagnetic materials installed on walls and other structures. These surfaces act like smart mirrors for wireless signals. Instead of allowing signals to scatter or become blocked, they redirect them toward areas with weak coverage.
In today’s wireless networks, walls, pillars, and large objects often block radio signals. These obstacles create dead zones where mobile devices receive weak connections. DISACM changes that by controlling how electromagnetic waves bounce off surfaces.
The technology also performs environmental sensing while improving communication. As wireless signals reflect from moving people or objects, they change in small but measurable ways. The system analyzes these changes to determine the location, movement, and speed of nearby targets in real time.
READ ALSO: TU Berlin’s SpaceBox Battery Project Aims to Transform Satellite Power Storage
This means one system performs the work of both a communication network and a sensing platform. Traditional systems often require separate devices for wireless coverage and monitoring. DISACM combines both functions into a single integrated solution.
Better Wireless Coverage
Researchers tested the technology in several practical environments. In one smart city demonstration, they installed 10 DISACM modules on the exterior of a building. These modules worked together to improve signal coverage across previously weak areas.
The tests showed that the reference signal received power (RSRP) increased by 10 to 20 dB in wireless dead zones. A higher RSRP indicates that mobile devices receive stronger, more reliable signals. The improved coverage also supported wireless data speeds of up to 400 megabits per second.
During the same test, the system monitored environmental activity without using separate sensors. It counted people moving through the area while maintaining communication performance. This combination makes the technology useful for future smart city management.
The researchers also tested DISACM inside underground mine tunnels. Such environments are difficult for wireless communication because thick rock and confined spaces block radio signals. Reliable communication is also important for worker safety and emergency response.
Modules placed along tunnel walls and equipment significantly improved network performance. Signal strength in blind areas increased by around 20 decibels. The system also tracked locations with an accuracy of less than 10 centimeters.
Such precise positioning helps operators monitor workers, equipment, and changing conditions inside underground facilities. Faster, more reliable communication also supports emergency operations when quick responses are needed. Combining both capabilities reduces installation costs by eliminating the need for separate monitoring systems.
The technology also has potential uses inside airports, factories, warehouses, hospitals, transportation hubs, and large commercial buildings. These locations often experience signal interference because of complex layouts and heavy infrastructure. Smart electromagnetic surfaces can improve both wireless coverage and operational awareness.
WATCH ALSO: Tesla’s Optimus humanoid robot was recently serving popcorn in the United States
The research builds on earlier work by Academician Cui Tiejun. In 2014, his team introduced the concept of information metamaterials, which use digital methods to control electromagnetic waves. That work set a new direction for the design of intelligent wireless environments.
The International Exhibition of Inventions Geneva has recognized new technologies from around the world since its founding in 1973. It remains one of the world’s largest and longest-running invention exhibitions. At this year’s event, Southeast University received 29 awards, including four Gold Medals with Special Distinction, 13 Gold Medals, nine Silver Medals, and three Bronze Medals.
As countries continue developing future 6G networks, technologies like DISACM demonstrate how communication systems are expanding beyond simple data transmission.
By combining stronger wireless connectivity with real-time environmental sensing, intelligent surfaces can help build smarter cities, safer industrial facilities, and more connected infrastructure for the next generation of digital networks.
