White space radio, which promises low-power connectivity for the Internet of Things, took a step towards reality today, with the arrival of the first chip to implement the “Weightless” specification.
The transceiver chip, made by Cambridge company Neul, uses “white space” radio – the unused portions of TV broadcast spectrum – and was announced today by the Weightless Special Interest Group (SIG}.
The Neul chip can tune across the entire UHF TV spectrum (470 – 790MHz), so it can use portions of spectrum which are not engaged in that particular location, due to the pattern of TV broadcast transmitters. It requires little power, and is designed for low data rate applications such as smart electric meters – the devices employing machine-to-machine (M2M) communication, which serve as the building blocks for “the Internet of things”.
Samples of Neul’s “Iceni” chip are now available for testing, but the design may be revised, warned Webb. The weightless specification might also be implemented by other vendors, since it is an open standard.
“Neul will not be the only supplier of chipsets and Iceni will not be the fastest, cheapest or most powerful of the Weightless chips that emerge in due course,” he said. “But it is the first, and that is special.”
If all goes according to plan, there could be five to ten billion white space devices shipped per year, as household appliances, vehicles, street furniture and other “things” go online using the technology. “This is a market that is bigger than cellular, and one that will support as many as a dozen major silicon vendors,” said James Collier, CEO of Neul. “The Weightless SIG already has silicon companies as members, and we expect a number of them to develop their own silicon.”
Weightless hopes that in volume, chips will be transformative: “A chipset cost of less than US$2 in volume and battery life in excess of ten years from a single primary cell as well as substantively lower network costs will enable the tens of billions of connected machines that we are forecasting over the next decade.”
Neul launched Weightless as a concept in June 2011, and the SIG was nnounced in November 2012.
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