Internet of Things (IoT) newcomer, Riot Micro is claiming that a radical design approach applying BLE/Wi-Fi architecture has delivered a new cellular IoT solution with cost/power levels that are characteristic of short-range wireless systems. Here Peter Wong, CEO, tells Jeremy Cowan how Riot has reinvented itself as an IoT chipset maker.
Semiconductor start-ups are rare things these days. But Vancouver, Canada-based Riot Micro has made its IoT market debut with what it claims is the industry’s lowest power baseband modem chip for cellular IoT.
The company began life a decade ago working on LTE IP technology to licence to the general market. Then three years ago, in search of faster growth Riot changed direction and brought in Peter Wong as CEO. “We retooled and refinanced,” he tells IoT Now, “grew to about 30 people, and developed a chip for cellular IoT, based on LTE NB1 and eMTC specifications.”
“Why IoT?” we ask.
“Because that’s where the majority of growth was. If you look at other cellular technologies – you know Cat 3, 4 , 5, 6 – as you go higher and higher for the smartphones and tablets of the world it gets harder and harder for a start-up to compete realistically. The key differentiators are integration and powerful processors with Snapdragons etc., and going up against the Qualcomms of the world didn’t make a whole lot of sense,” says Wong.
“When the standards started to evolve for M2M (machine-to-machine communications) it looked like there could be a significant inflexion point where the requirements changed significantly and where processor technology was not the King of the Game. It was about optimising for more performance and lower power, and of course much, much lower cost.”
“Cost being a huge factor in services with low ARPUs (average revenues per user),” IoT Now suggests.
“Exactly. That drove why we formed the team that we did. LTE is a relatively sophisticated protocol and technology relative to other wireless technologies like BLE and WiFi. But when you break it right down and look at NB1 and eMTC we felt there was a ton of simplification you could do technically and implementatikon-wise and speed-wise. When you’re driving 200kbps or even 1Mb you can take certain design approaches that are extremely power-efficient and really help drive the cost down. The memory is an example. We optimised the LTE protocol stack so that it only does NB1 and MTC. We could minimise the amount of memory required. Our protocol stack operates entirely within the memory within our chip.”
So the Riot Micro RM1000 has been built using Bluetooth Low Energy (BLE) and Wi-Fi architecture techniques to deliver a cellular IoT solution with the low power and cost levels of short-range wireless systems. The RM1000 is now being offered to module manufacturers and OEMs designing narrowband IoT (NB-IoT) and eMTC systems that can include automotive, asset management, home automation, industrial, point-of-sale, smart energy, and vending applications.
Asked who the company sees as its key rivals, Peter Wong tells IoT Now it would be […]