Researchers have recently set a new record for wireless speed that may influence the future of 6G technology.

      Researchers achieved 112Gbps on a 560GHz wireless connection, indicating potential for faster backhaul before 6G devices hit the market.

      A team from Tokushima University has reached wireless speeds that surpass the capabilities of current mobile networks. They managed to demonstrate a wireless connection of 112Gbps in the 560GHz band by utilizing soliton microcombs to produce a more stable terahertz signal intended for future 6G systems.

      For now, the focus is not on faster smartphones but rather on the underlying infrastructure that manages data between network locations. The capacity for backhaul can influence whether the expected speeds of 6G can be realized or if they become limited by congested network connections. Thus, this represents a significant advancement in 6G speed that is worth monitoring, even if it won't be visible to consumers in the immediate future.

      Why is this achievement significant?

      The 112Gbps speed is bolstered by the 560GHz frequency. The team transmitted a single-channel wireless signal far beyond the point where traditional electronic equipment encounters reduced output power and increased signal noise.

      This frequency range resides in the terahertz spectrum, which researchers are investigating to create wider data pathways for 6G. Previous communication systems operating at these frequencies typically achieved speeds ranging from a few to several dozen gigabits per second. This recent test has exceeded the 100Gbps threshold in the 420GHz range, elevating the work to a more advanced stage.

      How was the signal kept clear?

      At these high frequencies, achieving speed relies heavily on control as much as on bandwidth. Factors like phase noise and limited output power can complicate maintaining stable wireless transmission, particularly when transmitting higher volumes of data through a single channel.

      Tokushima University’s setup employs a compact fiber-coupled microresonator, minimizing the need for exact optical alignment. Additionally, it features temperature control to enhance the consistency of optical resonance behavior. While these aspects may seem minor, they are crucial engineering advancements that differentiate showy lab results from practical, sustained operations.

      When will real networks get closer?

      It’s important not to interpret this finding as an imminent smartphone upgrade. The researchers still face challenges in further reducing phase noise, supporting higher-order modulation, enhancing terahertz output power, and improving transmission distances through superior antenna design.

      The initial application of this technology is likely to be in mobile backhaul or photonic-wireless network links. Although this is less visible than the launch of new 6G smartphones, it plays a vital role in the network's operation. Before 6G can provide high speeds to consumer devices, the supporting infrastructure must be able to transmit data more efficiently.