6G technology breakthrough: High-speed transmission, automatically switching to 'premium' frequencies

Chinese scientists announced a breakthrough in 6G technology by developing an ultra-wideband system capable of high-speed wireless transmission and adjustable frequency.

Chinese scientists announced a breakthrough in ultra-wideband photonic-electronic integration technology for 6G wireless communications.

By leveraging hybrid photonics-electronics integration, a joint research team from PKU and the City University of Hong Kong (China) has successfully developed an ultra-wideband system capable of high-speed, frequency-tunable wireless transmission – a world -first achievement that is expected to enhance the reliability and efficiency of future 6G networks.

As the next generation of wireless communications, 6G requires high-speed transmission across multiple frequency bands in various scenarios. However, conventional electronic hardware is often limited to specific frequency bands due to differences in design, structure, and materials, making it difficult to achieve cross-band or full-spectrum operations.

To address this challenge, the team spent four years developing an ultra-wideband photonic-electronic integrated system that supports high-speed transmission at any frequency from 0.5 GHz to 115 GHz – a world-leading capability for full-spectrum compatibility.

The system also has flexible tuning capabilities, allowing automatic switching to safe frequencies when interference occurs.

"This technology is like building a super-wide highway, where electronic signals are the vehicles and bandwidth is the lanes," explained Wang Xingjun, deputy head of the School of Electronics at PKU.

Previously, signals were concentrated in one or two lanes, but now there are multiple lanes, according to Mr. Wang. If one lane is blocked, the signal can switch flexibly to another lane, ensuring faster and smoother communication.

Experiments have demonstrated the system is capable of achieving wireless transmission speeds exceeding 100 Gbps, enough to simultaneously transmit 1,000 8K ultra-high-definition videos , meeting the peak speed requirements of 6G while maintaining consistent performance across the entire frequency band.

The team is now working to improve the level of system integration to develop smart optoelectronic modules that can adapt to a variety of systems, with the goal of minimizing size, weight, and power consumption.

According to Mr. Wang, the future 6G network will feature ubiquitous wireless connectivity. When enhanced with artificial intelligence (AI) algorithms, the new system can enable more intelligent and flexible networks, capable of real-time data transmission, precise environmental sensing, and automatic interference avoidance, ensuring safer and more efficient communication in complex situations.

The research team's findings were published online in the journal Nature on August 27.

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Source: https://tuoitre.vn/dot-pha-cong-nghe-6g-truyen-dan-toc-do-cao-tu-dong-chuyen-sang-tan-so-xin-20250829070520445.htm