By David Burns
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October 8, 2020
Terragraph technology was developed by Facebook Connectivity, a division of the social media corporation, whose mission is to bring more people online to a faster internet. Facebook Connectivity develops solutions and technologies, working closely with connectivity ecosystem partners such as service providers, equipment manufacturers and nonprofits to overcome the accessibility and affordability challenges facing global internet connectivity. Terragraph promises low cost broadband delivery at speeds of over one gigabit, with the potential for over 10 gigabits using license-exempt fixed wireless access (FWA) in the UK by the end of 2020. Members of the UK Wireless Internet Service Providers Association (UKWISPA), have met with Facebook executives and officials from equipment makers Siklu, Radwin and Cambium to discuss service launches. They want to use this for license-exempt fixed wireless access (FWA) in the UK later this year. Siklu, Radwin and Cambium Networks are all set to ship products this year, UKWISPA added. Facebook has been working on Terragraph for about five years and has conducted pilot trials with service providers in several countries using prototype equipment. Over the last couple of years, Facebook has worked closely with Qualcomm to develop this technology and has licensed it free of cost to a range of global equipment manufacturers. Facebook’s vision here is to create a robust, self-sustaining, standard (802.11AY) based ecosystem around Terragraph. This has enabled a range of UKWISPA members to release products in 2020, while others, such as MikroTik and IgniteNet, have been encouraged to commit to joining the community. David Burns, chairman of UKWISPA, told Networking+ that the general rule with networking performance is to introduce the fastest speeds possible, “so gigabit speed is a very reasonable goal today” subject to affordability. “Enterprises invest heavily in communications systems of many types and spend surprising amounts of capital and time investing in bandwidth management methods such as quality of service (QoS),” he said. “Investing in QoS is an admission that the enterprise has insufficient capacity at the right place at the right time. For example, ensuring vital voice services operate smoothly and cleanly at all times is an obvious imperative. But what if this is at the expense of other time and bandwidth sensitive applications that support remote workers?” Burns added that VPNs and remote desktop services “are also very sensitive to the jitter and latency” typified by over-contended networks “and most QoS techniques crudely reserve minimum data commitment rates”. He continued: “As more workers spend more time out of the office and as more internal and external meetings become online meetings, fast networks will become more important than having desks, chairs and an office to keep them. In the end, gigabit internet connectivity will be far more valuable and cost a lot less than the empty desks abandoned by home workers.” “Facebook recognised that new applications require high speed connectivity and, with data consumption growing at an ever-increasing rate, the demand for broadband cannot be currently met with existing last mile technologies,” added Neeraj Bhatia, product manager at Facebook Connectivity. “With Terragraph, Facebook is creating a robust ecosystem to address this gap and serve under-connected communities faster and at much lower cost to service providers and end consumers. We have helped assemble a technology stack with a range of OEM partners, assisted with the specification of IEEE 802.11ay standards, and built an open ecosystem to realise the potential for mm wave technology.” “Terragraph uses the wide spectrum available in 60 GHz frequency band to deliver multi-gigabit speeds and uses a unique mesh solution, based on OpenR, to overcome line-of-sight (LOS) challenges to achieve high network availability and reliability.” Burns said, “This method perfectly complements fibre build out,” where the Terragraph mesh fills gaps that would be expensive to install otherwise.