Radio systems like mobile phones and wireless internet connections use as much of the radio spectrum as is necessary.
But the new technology can estimate and cancel out the interference from one’s own transmission, allowing a radio device to transmit and receive on the same channel at the same time.
The scientists from the University of Bristol said their technology could use half as much spectrum compared to the current technology.
But this research in particular, as well as being part of the evolution of 5G mobile, is also relevant to 3G and 4G in mobile devices. Traditionally, a separate filtering component is required for each frequency band, which means that mobile phones can’t support all the frequency channels available around the world.
Different devices are manufactured for different regions of the world and there are currently no 4G phones capable of unrestricted global roaming.
However, by replacing these filters...