DIGITAL INDUSTRY SOLUTIONS: CELLULAR IOT NB-IOT OCTOBER, 2021 – what has gone wrong, and when will it go right? (ARE WE THERE YET... ON THE ROAD TO MASSIVE IOT?) by James Blackman Editor, Enterprise IoT Insights F E AT U R E R E P O R T Cellular IoT deployments GSMA GSA NB-IoT 106 120 LTE-M 53 55 Both 52 54 FOREWORD M Annual IoT shipments (millions) 300 250 200 150 100 50 0 2021 2023 2025 Legacy M2M – 2G / 3G 3GPP LPWA – NB-IoT / LTE-M Broadband IoT – 4G / 5G Non-3GPP LPWA Source: Berg Insight 2 assive IoT? What a joke. Of all the over-hyped tech trends, was there ever one like IoT? Ericsson and Cisco said a decade ago, lest we forget, that this market would reach 50 billion connected devices by 2020 – by last year. The Swedish vendor’s latest review says there were about a quarter of that number (12.4 billion; see box, page 3) in circulation at the end of 2020, and there will be about half (26.4 billion) in five years, by 2026. Which does not sound that bad, actually – into double-digit billions, at least, after a decade of technical trial-and-error, plus financial recession, geopolitical crisis, and global pandemic (see pages 16-18). Except that the contribution from the cellular market, putting most of the pressure on the crank-arm of the hype machine, is a fraction of that total – 1.7 billion in 2020 (a little over a seventh), rising to 5.8 billion in 2026 (a little under a third). Yes, the telecoms industry’s share and contribution is growing; but its success so far – and even its advances in the mid-term – hardly justifies all the big talk. And what these numbers tell us, actually, is that massive IoT will be a short-range IoT market for a long while, yet – with Bluetooth, Zigbee, and various other low(ish)-power IEEE 802.15.4 technologies seeing the lion’s share (78-85 percent) of the action in the period. Nordic Semiconductor is a short-range specialist, which has moved in recent years into the cellular game; Svein-Egil Nielsen, its chief technology officer, remarks: “I’ve never seen any other industry like telecoms – I mean, it was talking about 5G five years before it had anything. And the hype around 5G has been so intense it probably undermined cellular IoT rollout. But we all thought IoT would come earlier. There is no question about that. All the projections are probably two or three years delayed. We have all been asking, when is it going to take off?” Only two or three years? More than that, surely? But the thing about this joke of F E AT U R E R E P O R T massive IoT is no one is laughing, because no one has given up on it. Because everyone is still too busy trying to make it work. For the cellular industry, that means getting NB-IoT (and, to a lesser extent, LTE-M) to fly, at last – by finally untangling the mess around integration, interoperability, roaming, and billing that have made it the punchline in the comedy. Cellular IoT networks exist in most markets (see map, page 2) – 159, says the GSMA; 175, says the GSA. The former says cellular IoT will reach 3.2 billion connections by 2024. The Ericsson forecast (box, page 3) says long-range IoT is growing at twice the rate of short-range IoT (23 percent, versus 12 percent), and the engine of its growth is cellular IoT, standardized in 4G-LTE and 5G-NR as NBIoT and LTE-M, which will contribute about half of cellular IoT volumes in 2026. Quite where non-cellular low-power wide-area (LPWA) tech like LoRaWAN and Sigfox feature in Ericsson’s figures is unclear (they are either ignored, or grossly under-estimated). Berg Insight agrees (box, page 2) that NBIoT and LTE-M will grow in influence, starting from now, and be the dominant force in long-range IoT by 2025. (It also suggests their non-cellular equivalents will show a decent turn-of-pace in the period.) These pages tell how NB-IoT – as, arguably, the significant force in cellular IoT – is shaping up; that it has been waylaid by technical issues and strategic foul-ups, but that it will not be denied. About the structure of this report. The NBIoT story is told here in five parts, from five interviews with five industry types. The first two are with hardware providers; the last two are with airtime providers; these explain the challenges with NB-IoT in two episodes, about hardware and airtime. The middle interview is with an analyst, and provides context about the enterprise sector. The narrative also unfolds in two list-style articles, each with 10 entries scattered through the pages. These present 10 key NB-IoT deployments, covering everything from metering to tracking, and 10 key NB-IoT challenges, drawing points from the main interviews. The report can be read page-by-page, or section-by-section. Cellular LPWA share of IoT – less than 10% in 2026 T he latest ‘mobility report’ from Ericsson says IoT momentum is gathering around newer cellular tech, including NB-IoT and LTE-M. Some of the terminology gets confusing, but the message is IoT traffic on legacy 2G and 3G networks, much of it from a pre-IoT machine-to-machine (M2M) era, is being matched finally by the rush over 4G and 5G, as the price of hardware reduces, the variety of apps multiplies, and business cases get clearer. Ericsson forecasts there will be over 26.4 billion IoT connections in 2026. The lion’s share (20.6 billion; almost fourfifths) of these are on short-range IoT tech, like Wi-Fi and Bluetooth; cellular IoT will account for 5.4 billion by the end of the period, it says. Massive IoT connections on NB-IoT and LTE-M will increase by almost 80 percent during 2021 to reach close to 330 million; these will comprise 46 percent of all cellular IoT connections in 2026 (about 2.48 billion out of 5.4 billion). By 2026, 44 percent (2.16 billion) of cellular IoT connections will count as ‘broadband IoT’ in Ericsson’s terminology, on either 4G or 5G. The rest (about 10 percent) will be on old 2G and 3G networks. Ericsson said 5G is extending to more IoT devices through the end of 2021, including to cameras, virtual reality headsets, and unmanned aerial vehicles (UAVs / drones), and into more sensitive time-critical communications in 2022. But 4G will remain the dominant cellular IoT technology in 2026, it said. Support for time-critical communications, with ultra-reliable low-latency (URLLC) aspects in Releases 16 and 17 of the 5G standard – for remote control of robots, cloud robotics, cloud gaming, and, notably for Industry 4.0, with the introduction of time-sensitive networking (TSN) for niche industrial automation – will comprise a minor share of the broadband IoT count. Cumulative IoT connections (billions) 2020 2026 CAGR Long-range IoT 1.7 5.8 23% – Cellular IoT 1.6 5.4 23% Short-range IoT 10.7 20.6 12% Total 12.4 26.4 13% Cellular IoT connections (billions) 5 4 3 2 1 0 2020 2022 Massive IoT – NB-IoT / LTE-M Broadband / Critical IoT – 4G / 5G 2024 2026 Legacy M2M – 2G / 3G Source: Ericsson 3 F E AT U R E R E P O R T PART 1 | Between a rock and a hard place – how NB-IoT escaped the long shadow of 5G... ... and 2G and LTE-M; IoT hardware maker Sequans says NB-IoT is a story of missed opportunities, only now coming to a proper climax T he problem with NB-IoT, says Sequans, is it has been over-hyped and undervalued by the operator community, which brought it to life five years ago to counter the perceived threat from non-cellular low-power wide-area (LPWA) equivalents, most notably LoRaWAN and Sigfox. Reports of its demise are greatly exaggerated, the market says, but there is no question its growth has been stunted, and its story has been hard to watch. Jeremy Gosteau, senior director of IoT product marketing at the firm, says NB-IoT was caught between a rock and a hard place, between the novelty of anything-goes 5G and the legacy of anywhere-goes 2G and 3G. More than this, NB-IoT was wrong-footed by LTE-M (Cat-M), its cellular-based sister-tech, developed by a different camp, and originally geared for different ends (see box, page 6). He comments: “5G came so quickly after Release 13 [of LTE-M and NB-IoT], so that operators deployed one or the other differently in each region – in North America, Europe, China. And all the marketing and technical rush to deploy 5G stopped some of the investment to bring LTE-M and NB-IoT to the right technical maturity. So it has taken time. But the technology is right, and the pricing is 4 right – at least from a hardware perspective.” PINCER MOVEMENT “The marketing and technical rush to deploy 5G stopped some of the investment to bring LTE-M and NB-IoT to the right technical maturity... {And} LTE-M has complicated the picture.” Jeremy Gosteau, Senior Director, IoT Product Marketing, Sequans We will come back to the issues of pricing, as well as to roaming and interoperability; we should stick, for now, with the pincer movement that has forced NB-IoT into the shadows, and which has been appended and sharpened by its enforced competition with LTE-M alongside. “LTE-M has complicated the picture. These two technologies came out at the same time – one pushed by China, the other by the western RAN vendors and operators,” says Gosteau. “There was a huge overlap in terms of airtime costs, and not much distinction – even though they are different technologies, to serve different use cases. The market missed the chance to distinguish NB-IoT’s value. I mean, NB-IoT is fundamentally different. It works in the guard band (see page 5), which is free spectrum for operators – it is like the SMS of 2G, transmitting P2P information for free, with no impact on legacy LTE capacity.” He goes on: “Operators could have come up with dedicated data plans for the guard bands. There is nearly no cost for them – they have to pay-for and monetise upgrades to their base stations, but that is pretty much F E AT U R E R E P O R T KEY NB-IOT DEPLOYMENTS – #1 | WATER METERS, CHINA China Telecom + Shenzhen Water Group (2017/18) T N B-IoT uses a 200 KHz frequency band, which corresponds to one resource block in GSM and LTE transmissions. NB-IoT can be deployed in three ways: in standalone operation, guard-band operation, and inband operation. Standalone operation describes a deployment where NB-IoT is used exclusively within a spectrum holding, whether in a private or public arrangement. This implementation gives the best performance. The world’s first standalone private NBIoT network launched in Florida in 2019, using a sliver of 700 MHz. The Upper 700 MHz A Block is a 1 MHz paired (2 MHz IN-BAND NB-IoT LTE carrier GUARD BAND NB-IoT LTE carrier OWN BAND (STANDALONE) NB-IoT he classic NB-IoT study, perhaps; certainly the first for water metering, and the model for everything with NB-IoT metering that has come after. The city of Shenzhen, home to Huawei, is ranked among the most water-scarce cities in China, the story goes, and was (some time ago) sliding into a water deficit of 694 million cubic metres per year. Shenzhen Water Group worked with China Telecom and Huawei on an NBIoT connected water network to better manage its reserves. The initial scope was to collect data from 1,200 NB-IoT meters and monitor pipes to 4,500 people. As with all oldworld utility networks, staff had previously gone to households to measure, assess, and resolve issues; the task was labour intensive, inefficient, and costly. China Telecom’s NB-IoT network, at 800 MHz, provides the coverage and penetration from around 500 compatible base stations. Its cloud management platform issues alerts on “data pressure” (water pressure?) at different nodes; comparing readouts allows the utility to find leaks and take action. NB-IoT recorded higher data accuracy and wider coverage (20dB gain over existing tech) for underground meters, said China Telecom. The project “set the pace for full utilization of NB-IoT in China’s water industry,” said a GSMA writeup, proclaiming as well the project established “new benchmarks, applications, and business models” for the wider IoT market. Three NB-IoT deployment models – and a warning GSM carrier total, split evenly between the downlink and uplink channels) block of spectrum, licensed by the FCC in the US. NB-IoT is suited to its paired structure, noted Puloli, the San Francisco-based startup which has launched the network. Puloli has developed a custom channel and band plan, targeting utilities and other critical infrastructure industries. It claims a distance of up to 25 miles from its tower sites, making it “one of the most capital efficient” ways to connect industrial assets. But every other NB-IoT network launched so far has been deployed by telecoms operators using the LTE guard band, a buffer between strips of spectrum carrying mobile broadband services. All of these utilise the unused resource blocks within an LTE carrier’s guard band, which impacts performance. The justification is cellular IoT networks will be ringfenced from spectrum refarming by using the guard band. But guard bands serve a purpose: they are intended as narrow, unused pieces of spectrum between wider-frequency radio bands to stop interference between GSM and LTE carriers. The signal-to-noise ratio increases for NB-IoT if it co-exists with noise roll-off from other channels, and performance suffers – and misses the kind of advertised levels typically claimed by operators. “It is a great example of how this industry can be misleading,” comments one sage industry source. The third implementation mode, inband operation, utilises, resource blocks within an LTE carrier that are otherwise used for mobile broadband resources. This method impacts both NB-IoT and LTE performance, as it bundles the former directly into the latter’s channels. 5 F E AT U R E R E P O R T it. They could have thought to distinguish between high-end LPWA LTE-M and low-end LPWA NB-IoT – for all kinds of LoRa-like apps, like trackers, sensors, smoke detectors, garbage collectors, smart parking, and so on.” “Customers come to us, asking to get the price down to $3, to go into Europe and Asia. But they want GPS, which is another buck, and connectivity, which is another $10... [And] in the end, the hardware costs aren’t that significant. So, yes, it has been frustrating.” DEAL BREAKER The subtext is hardware companies have held up their ends of the bargain, by forcing down module costs to around $5 for single-mode units, while the operator set, in its distraction and confusion, is putting LTE-M airtime costs, for a hot-blooded tech that barely makes the ‘low-power’ grade, against a lizard-like standard running a cold-blooded pulse for battery-powered sensors. NB-IoT was supposed to be ‘the little train that could’; tickets have been sold like it is an inter-city locomotive. Has it been frustrating? “Yes,” says Gosteau. “Because customers come to us, asking to get the price to $2 or $3, to go into Europe, South America, Asia. But they want GPS, which is another buck, and connectivity, which is another $10 – and it gets to the point where they ask why we’ve worked so hard to get the hardware costs down. Because in the end, the hardware is not that significant as a proportion of the total cost. So, yes, it has been frustrating. But that is what it is, and it is also the role we play in the ecosystem – to educate customers, talk to operators, and find a way to through.” Invariably, the China story gets told (and retold on pages 10-14); that 90 percent (or 85 or 95 percent?) of the market is there, while the rest of the world dithers over NB-IoT or LTE-M. Sequans has run the numbers, taking its own measure from various analysts, and reckons around 100 million LPWA units have been sold in China this year (2020/21). “China is really where the action is, as it stands – the rest of the world, all together, only accounts for about five million NB-IoT units,” says Gosteau. He says the China market for LPWA network connections splits roughly 60/40 between NB-IoT and Cat-1. The latter is a forebear of LTE-M (Cat-M1), spun out as the first LTE-based IoT standard, being rapidly displaced by a more efficient brood. It has a headstart, and yet NB-IoT has kept pace, and more so, since the turn of the 6 Jeremy Gosteau, Senior Director, IoT Product Marketing, Sequans Cellular IoT tech comparison NB-IoT Cat-NB1 LTE-M Cat-NB2 Rel. 13, 2016 Rel. 14, 2017 180 kHz 180 kHz Half Half 20, 23 dBm 14, 20, 23 dBm ~127 kbps ~26 kbps ~159 kbps ~62 kbps <10s Data Data OTDOA, E-CID Cell ID 1,000,000 200,000 15km 15km 1 0-15 years 1 0-15 years Limited / Idle Full / Connected 3GPP Release Channel bandwidth Duplex mode Transmit power Downlink rate Uplink rate Latency Voice / Data Positioning Cell capacity Max range Battery life Mobility Cat-M1 Cat-M2 Rel. 13, 2016 1.4 MHz Full / Half 20, 23 dBm 1 Mpbs 1 Mpbs 10-15ms Voice + Data 1,000,000 10km ~1 0 years Full / Connected Rel. 14, 2017 5 MHz Full / Half 20, 23 dBm 2.4 Mbps 2.6 Mbps n/a Voice + Data OTDOA, E-CID 10km ~1 0 years Full / Connected Faceoff – the above compares Release 13 and 14 versions of NB-IoT and LTE-M, which commentators suggest are aligning in service of mMTC; the tell-tale is the introduction of ‘live’ mobility in NB2 for asset tracking, but other technical metrics suggest LTE-M and NB-IoT will continue to be distinctive. Note, this table is curated from various (often contradictory) sources, as a best-effort tally of their respective capabilities. Source: various F E AT U R E R E P O R T How do NB-IoT and LTE-M fit into mMTC in 5G NR? The holy trinity of I 5G service classes n case of doubt, NB-IoT and LTE-M are not 5G technologies. There is a misconception about this, that they represent either the new 5G NR componentry for massive machine-type (mMTC) – to go alongside, effectively, consumer and industrial versions of 5G to serve the other service classes in a holy trinity of 5G NR variants (eMBB and URLLC; see right) – or else they are to be superseded by incoming 5G NR standards for low-power mMTC. The first of these statements is wrong, and the second is true in ways, but meaningless – and wrong, ultimately. Adarsh Krishnan at ABI research puts the record straight on the first. “They are 4G technologies; the 5G standard is backwards compatible so they operate natively in the 5G core. That is what they mean when they say NB-IoT is a 5G technology. But it is mostly marketing.” Right; and what about their role now and in the future in the mMTC field, as defined in 5G NR? Let’s go back, briefly, to the beginning. IOT REQUIREMENTS The International Telecoms Union (ITU) said five years ago that a new mMTC standard, started in Release 13, was required to serve the explosion of IoT services with cellular tech. These requirements were five-fold, and have come to underpin the core character of sundry LPWA tech. The terms remain that mMTC networks enable battery life of 10 years, penetration of 164 dB, throughput of 160 bits per second, coverage density to support of up to a million devices per square kilometre, round-trip latencies of less than 10 seconds, payloads of 20 bytes, and – crucially for massive scale – ultra-low cost hardware. A sixth requirement was also defined: that mMTC - Massive IoT / LPWA Smart cities Smart logistics Smart metering LTE-M use 15 kHz sub-carriers, as per LTE, and 5G NR defines any sub-carrier in a doubling sequence from 15 kHz to 240 kHz. NB-IoT and LTE-M have a similar structure in the time domain, too. In IoT, a slot is specified as 0.5 ms, a sub-frame is 1ms, and a frame is 10ms; in 5G NR, the sub-frame and frame are consistent with LTE timings, and the slot affords more flexibility anyway. There is no conflict here. CORE NETWORKS But there is more work in the core network and system level. TDD mode, important in 5G NR, has been defined already for NB-IoT and LTE-M, prior to Release 16. The problem is the 5G core is geared towards eMBB, which URLLC eMBB puts the highest priority on throughout, and contradicts the requirements of - Critical comms - Broadband comms mMTC, prioritizing power-limiting funcAutonomous vehicles Immersive video Smart grid AR / VR apps tions such as high latency, power save Factory automation 3D video mode (PSM), and extended discontinuous reception (eDRX). These last two are problematic for roaming, as well (see NB-IoT Challenge #2), but are being addressed so 5G mMTC should support new features, includ- networks support both eMBB and mMTC. Gus Vos, chief engineer at Sierra Wireless, ing positioning, mobility (see box, page 6; NB-IoT Challenge #7), multicast comms, and writes: “3G UMTS and 4G LTE use different time-division duplexing (TDD), where the core networks, which creates complexity and up/downlink are in different time slots in the costs, [which has] driven operators to depsame band. NB-IoT and LTE-M are delivering recate 3G to get to a single core. The same on these terms, through Releases 13 and 14. is not true [of LTE]... designed to operate inThe max transmission power for NB-IoT has band [with] an NR system.” And so, we find, been fixed at 14 dBm, and techniques like mMTC, this cornerstone of 5G (with eMBB wake-up signalling and early data transmis- and URLLC), has been set down already in sions have been wrapped into NB2. Release LTE with NB-IoT and LTE-M, but will be made 16 sets out the template for NB-IoT and LTE-M stronger with the arrival of new 5G NR systo co-exist in 5G NR; the GSMA rules: “Today, tems. Says Vos: “5G will offer new capabilities... but for IoT, the revolution –with LTE-M NB-IoT and LTE-M are part of the 5G family.” In the physical layer, their coexistence with and NB-IoT – is already here [and] future 5G NR is already worked out: NB-IoT and proofed.” 7 F E AT U R E R E P O R T year. “It is a good trend because Cat-1 is a mature technology, not intended to go as-massive. So NB-IoT is following in the path of Cat 1, which is still growing today.” The numbers, he explains, are for single-mode units, without alternative cellular fallback (to 2G, 3G, or regular 4G-LTE). “They would be different with fallback, I’m sure,” he says. “Sixty percent of the Cat-1 market is in China, today, just because of the non-selection of LTE-M – and because not all apps can be addressed with NB-IoT. The rest is elsewhere.” The lesson from China is about airtime pricing, he says. “China produced really good data plans, enough to motivate NB-IoT deployments nationally. That hasn’t been the case elsewhere. The thing is the technology is good, and it could be great, already, if enterprises were able to pay 10 bucks all-in – for the hardware, connectivity, SIM – and just build it, deploy it, and forget about it, so it works for five or 10 years with no recurring costs. But that hasn’t been the way, so far; data plans are still too expensive.” Global 2G and 3G sunset times Source: GSMA 2G 3G Brazil Canada Mexico US Claro Bell Telcel AT&T 12/2023 Closed 12/2024 Closed 12/2025 12/2022 12/2026 02/2022 China India Japan Korea Unicom Airtel NTT SK Ongoing 12/2023 No service Korea Ongoing Closed 03/2026 SK Germany Nordics Spain UK Vodafone Telia Vodafone EE 12/2025 12/2025 12/2025 12/2025 Closed 12/2025 No info 12/2022 America Asia Europe KEY NB-IOT CHALLENGES – #1 | ROAMING COVERAGE I oT roaming is being sorted, we hear. But it has been a long road, and there is hard-going ahead. Part of the problem is just with coverage; NB-IoT is running at about twice the rate of LTE-M in terms of deployments (see page 2), but there is still not enough of it on the international scene for truly global IoT solutions – without considerable planning and negotiation. “Availability is still patchy,” says Adarsh Krishnan at ABI Research. The importance of roaming with NB-IoT, generally preferred for static sensor installations, is not immediately clear. LTE-M offers active handover between masts; NB-IoT does not, at least in its Cat-NB1 form. But even occasional inter-country handshakes between sensors and masts offer valuable readouts about the status of goods. More importantly, global manufac- 8 turers, offering the kind of contracts that will come to underpin massive IoT, want to build once – in anonymous factories – and deploy everywhere, provisioning devices market-by-market in easy cloud platforms. Proper global roaming – as well as iSIM functionality (NB-IoT Challenge # 5), and probably incoming Cat-NB2 capabilities (#7) – is urgently required. More networks and more roaming deals are required. “The tech is global, but the deployments are regional,” says Svein-Egil Nielsen at Nordic Semiconductor. Vodafone agrees; but it emphasizes the ground already covered, not the road to go. “We have finally established a common playing field – before everyone was just in their own sandpits. We are all going the same way; that is the maturity we now see with NB-IoT.” But Gosteau’s view is not a downer, actually. NB-IoT is not dead, anymore than IoT is dead, he says; it is just expectations of NB-IoT are conflated with expectations of IoT. And IoT is a hard nut to crack – or its cracking has fragmented so far that it is a challenge to put it together again. As a cautionary tale about the distance between hype and reality, even in telecoms, it is hard to beat. IOT STANDARDS But the NB-IoT market has reasserted some buoyancy. Roaming is being sorted, acknowledges Gosteau; airtime pricing has improved (NB-IoT Challenge #3). He is optimistic, invariably, promoting a dual-band NB-IoT / LTE-M strategy for his company to global markets. No, IoT is not about to get ‘massive’, yet, he says; it is a slow burn, rather than a pyrotechnic explosion, which will perhaps grow out of a bonfire of telco vanities. But the cellular-side is filled with opportunity. And, the message is, NB-IoT is finding its way out of the dark, as the 5G and 2G shadows retreat, and its value gets clearer. “I see positive things for NB-IoT,” says Gosteau. “2G and 3G are ‘sunsetting’ in many countries and regions in the next five years (see box). And there is no other choice for massive IoT. There is no NR provision for low-power IoT. All the 5G data rates address eMBB and URLLC (see page 7). For mMTC, it is about extending LTE-M and NB-IoT. Release 17 and 18 introduce RedCap and e-RedCap for down-to-10 Mbps applications. But for the few-hundred kbps-types of apps, which is the target for LTE-M and NB-IoT, there is no equivalent. So LTE-M and NB-IoT will extend – and will do so also because of the non-promise of LoRaWAN and Sigfox.” Ouch, on that last point. Actually, Gosteau is complementary about rival non-cellular tech, at least for private industrial and parochial national setups. But the final irony is the industry’s blurring of NB-IoT and LTE-M in the early days is being made real in the standardisation process (NB-IoT Challenge #7). “Where these technologies have been quite distinct, they become increasingly aligned with CatNB2. They are getting closer; the distinction is narrowing all the time.” F E AT U R E R E P O R T Connect, manage and monetize your fleet with BICS global IoT solutions Transform your transportation business and tap into the power of IoT. 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Contact us to find out more. bics.com/services/global-iot/ 9 F E AT U R E R E P O R T PART 2 | ‘No one is making money’ – the China NB-IoT story is a cautionary tale, say some The China model is supposed to be the blueprint for massive NB-IoT; not so, says Nordic Semiconductor – not if you want to make money L et us take a different look at the China story. Its model for NB-IoT – state-sponsored incentives, flat-rated airtime pricing, commoditization of hardware – is not all it is cracked up to be, reckon some. Market stats, from various analyst groups, suggest the lion’s share (let’s settle on 90 percent) of the NB-IoT market, today, exists in China. “Yes, and zero percent of the profits,” responds Svein-Egil Nielsen, chief technology officer at Nordic Semiconductor. “No one is making money in China,” he says. Nielsen has a justifiable reputation in the market as a straight talker. The Chinese example, he says, should be considered like a cautionary tale, for NB-IoT hardware providers in particular. The temptation to show it to the rest of the world as the blueprint to make NB-IoT add up for enterprises is wrong-headed, he says. “That is the learning from China – that no one has made any money.” He explains: “Which you shouldn’t copy, ever. China commoditized NB-IoT to the extent profit vanished from the market. The incentives and specifications that went into the NB-IoT market in China mean every water meter looks the same. They are 10 KEY NB-IOT DEPLOYMENTS – #2 | PARKING SENSORS, GERMANY Deutsche Telekom + City of Hamburg (2018) H ardly massive IoT, but Deutsche Telekom’s NB-IoT deployment in a Hamburg car park was one of the earliest in Europe, from back when the whole ‘smart city’ concept still anchored most of the IoT conversation – before its constituent parts gained momentum to cut loose of their moorings and go under their own steam. Still, back in 2018, this looked like a proper city-IoT deal, for 11,000 NB-IoT sensors and an app to provide data about their availability. The project was originally green-lighted because Hamburg was to host the ITS World Congress in 2021 – this year. As it goes, Covid-19 has abated enough that the 2021 event will go ahead, and car spaces will be scarce. So maybe the city’s NB-IoT network will get a proper workout. Deutsche Telekom has had a hand in similar NB-IoT initiatives in Bonn (earlier, in 2017), Dortmund, Moers, Duisburg, and Darmstadt. The message is smart parking in Germany is contributing decent IoT numbers, probably, and that ‘smart cities’ are a thing, actually. F E AT U R E R E P O R T 11 F E AT U R E R E P O R T building to the same spec – they should be with this standard, and perform like this and this, and be pin-compatible. So you can plug-in modules from any vendor. “That doesn’t do anything but drive commoditization. In the end, the only difference [between NB-IoT modules] is the price. So China went very quickly to zero profits, and very low cost and very little value. So I don’t think China is a good example of how to do things. Maybe it made sense in China, which just wanted to get the price down on water meters. Maybe that was the thing to do. But the market hasn’t come out of it any more robust or innovative.” KEY NB-IOT CHALLENGES – #2 | INTEROPERABILITY FIXES T CHINESE WHISPERS Which runs somewhat contrary to our conversation with rival chipmaker Sequans, which says China effectively broke the technology, in a good way. It innovated not only with flat-rate data plans, even rolling them in with module costs to establish singular lifetime pricing (“10 bucks all-in – for hardware and connectivity”), but with brand new IoT applications, often by virtue of the rock-bottom pricing. For the end-user market, and for the technology at large, the China story worked, the message from Sequans goes. By contrast, Nielsen says China went too soon and too fast; he suggests other major cellular markets – Europe, and North America to a lesser extent – are now bringing the noise, even if they are late to the party, as always, and the likes of Sigfox and LoRaWAN have had the floor largely to themselves. “They might have thought about the business case, but they just made it an unattractive place to do business,” he reflects. As one commentator noted last week, in response to this article’s publication online, the government in China directed IoT with the goal to build a connected society for the future, and not to drive profitable business in the near term. As another observed, Nordic Semiconductor offers the “most expensive combi-module on the market”, and “China is known for its low prices” – and Qualcomm and others are making money in China. 12 Apps – smart metering and bike rentals (above) have dominated NB-IoT cases in China; Telia in Norway has led the developing smart-farming charge with NB-IoT trackers for sheep (below; see NB-IoT Deployments #3, right) he point above (#1), that NBIoT is a global tech (regionally deployed), is not exactly true. Technical discrepancies between deployments impact interoperability, and therefore global availability – roaming between markets and, even, roaming on disjointed network infrastructure in-market. In general, cellular roaming is well standardized by the GSMA. But certain NB-IoT features complicate the picture: specifically, two functions designed to conserve battery power. These functions, power saving mode (PSM) and extended discontinuous reception (eDRX), enable an NB-IoT device to turn off its radio whilst remaining registered to the network, and deactivate from listening to the network. But neither function is aligned across NB-IoT in LTE. Operators configure their timers differently in order to orchestrate power consumption (sleep/hibernate) for dominant apps in their markets. This conflict poses problems when devices roam between networks, and there is no easy way around. “There are challenges to deploy devices with simple configurations of PSM and eDRX across multiple countries – it requires some compromise by the enterprise. So there remains complexity, and I don’t know how it will be resolved– it is very much about the radio configuration,” comments Luc Vidal-Madjar, in charge of IoT and M2M at BICS. There is more; an IoT device in PSM or eDRX mode cannot be contacted from the network side, impacting crucial eSIM and iSIM functionality (#5) in NBIoT, potentially even deactivating the SIM function. As such, the module is often required to house a second radio, normally 2G, for initial contact and further provisioning. F E AT U R E R E P O R T KEY NB-IOT DEPLOYMENTS – #3 | SHEEP TRACKERS, NORWAY “If you want to do water meters in China with NB-IoT, you’re not going to make any money... [And] we don’t want to do a pin-compatible product that competes with a manufacturer that doesn’t report profits to shareholders.” Telia + Nortrace (‘17) A Svein-Egil Nielsen, Chief Technology Officer, Nordic Semiconductor DRAGGING HEELS But, still; the message, generally, is different – that Europe, and everywhere else, has dragged its heels on NB-IoT. The case put forward by Sequans, and others besides, is that hardware providers in these parts have held up their ends of the bargain, and innovated to bring costs down (to around $5 per module), and to integrate dual-mode connectivity with LTE-M as well (for about $7) to patch-up scanty global cellular IoT coverage. And that the carriers have had their heads turned by 5G, and brains scrambled by LTE-M; that they have categorically failed to distinguish NB-IoT as a technology and tailor pricing for the kinds of rock-bottom sensor applications it supports. Until now, anyway; the likes of BICS and Vodafone claim to have it cracked (see pages 20-23, 24-26). Nielsen shares the same frustration; that hardware makers have done most of the donkey work on NB-IoT. But his bigger point about the China story also stands; the race to the bottom is not just about straight cost, but the ability to draw value and drive demand – and for supply firms to leverage premiums by distinguishing their products. That is how the business of innovation should work, Nielsen seems to say; otherwise it is just a commodity market – which sure seems sudden for a ‘disruptive’ tech (see pages 1618) supposed to inspire a revolution of new industrial value. What he actually says, very plainly, is that business is business, and Nordic Semiconductor is not prepared to do bad business in China. “If you want to go after water meters in China with NB-IoT, you are not going to make any money. And as a publicly traded company in Norway, that precludes us entering that market. We don’t want to do a pin-compatible product that competes with a manufacturer that doesn’t need to report profits to shareholders.” At the same time, he is defensive of the European delay with NB-IoT, at least the notion the market in general has ‘dragged its heels’. “There is this thing that Europeans have a different mindset somehow, but I am not sure they are dragging their feet necessarily; it is just that things take time,” he reasons. “The thing is people want to make money. Which is somehow forgotten. And that applies to carriers, and it applies to vendors like ourselves.” nother entry that features more because of the ground it broke than the sensors it connected (see #2 and #10). But this one is fun, even if just for the imagery you can stick in a news article (see page 12), and covers an important IoT sector: smart agriculture. Telia worked with start-up Nortrace to connect 1,000 sheep to its NB-IoT network somewhere outside of Stavanger in Norway, some time back in 2017. It had already launched a smart-farming service in late 2016 to monitor irrigation in fields. But tracking was new for NB-IoT, compared to static monitoring. The tracker, called Shiip (for tracking ships, as well as sheep?), is a collar with an NB-IoT/GPS combi-unit, plus other sensors. It was installed to bounce a signal off an NB-IoT base station in the Rogaland countryside, and back to the cloud and down to a smartphone app – to give the farmer data about the position and well-being of the flock. It was only a pilot, but others have followed. Telstra talks about NB-IoT for agricultural change – “a network that makes the future possible for regional and rural Australia”. Cisco is presenting NB-IoT as part of a curious ‘5G’ mashup, also including LoRaWAN and Wi-Fi, to track 2,000 cows in Somerset in the UK as part of the 5G RuralFirst scheme. Logic says Vodafone is handling the NB-IoT leg, on the grounds it is doing the same for coastal monitoring in another 5G RuralFirst trial (#10). Meanwhile, Telia has gone on to more massive IoT-things, including connecting at least 100,000 garbage bins in Norway, and two million electric meters with the main power utilities in Sweden (#9). 13 F E AT U R E R E P O R T KEY NB-IOT CHALLENGES – #3 | COST CALCULATIONS KEY NB-IOT DEPLOYMENTS – #4 | ELECTRIC BIKES, CHINA China Mobile + City of Zhengzhou (‘19) N Collaboration – Vodafone, via its new grandcentrix business, is working with Nordic on bespoke NB-IoT bundles T his appears, from the meta-narrative in this report, to have been remedied (see pages 24-32); but rather like with roaming, the solution has only just revealed itself and there is work for the industry to observe the picture. Meanwhile, the rival non-cellular IoT market has been hammering out TCO terms with enterprises since the middle of last year, at least. Better late than never; but the pace of cellular invites more lostground to LoRaWAN and Sigfox. But, in these pages, Nordic Semiconductor, an IoT chipmaker in the IoT module game, and Vodafone Business, a tierone carrier apparently untroubled by 5G hype, settle on a ballpark fee for NB-IoT. Vodafone has started bidding at €12.99 for 10 years; its ‘grandcentrix’ dev-house in Cologne is bundling airtime into bespoke NB-IoT solutions for enterprises, and its outlook has shifted 180 degrees on IoT, compared with old airtime sales. The philosophy, which still sounds like marketing, is the same co-creation shtick that is supposed to bridge the IT/OT divide in Industry 4.0 – that enterprises are ‘partners’ and not just ‘customers’ anymore. But this new consultancy approach is 14 “There are all kinds of practical issues with NB-IoT, still. But $50 over 10 years makes sense to the customer, and makes sense to the industry.” only novel to operators; most of the IoT industry has been discussing the minutiae of TCO for some time. Which is why Nordic, with the kind of red line on profit margins that stops it from entering China (see pages 1-13), is the one in this exercise to quote an easy TCO figure – $50 for hardware, airtime, and application. Hardware pricing is important; the lower it goes the more that gets connected. But understanding the value IoT delivers is more important. As hardware prices fall in China, they have stabilised everywhere else, at a level that works for all sides – for enterprise users, airtime providers, hardware makers, and solution developers. “There are all kinds of practical issues with it, but $50 for 10 years makes sense to the customer, and to the industry,” says Nordic. Progress is good, then; the challenge is for the wider market to grasp the nettle. ot the first NB-IoT use case that comes to mind, perhaps, and not the one (water meters) that has made all the running in China, but an important one – and, it turns out, the “largest-scale NBIoT application for a single service in the world”, according to the GSMA. This solution, devised by China Mobile and Huawei for the Zhengzhou Public Security Bureau received the ‘best smart cities innovation in Asia’ award at MWC Asia in 2019. We don’t like writing about industry awards much, but this one stands out amid all the back slapping. China has more battery powered bikes that anywhere else. And lots of bikes means lots of traffic problems. GSMA-quoted stats claim 70 percent of thefts, 30 percent of traffic accidents, and nine percent of fires in 2017 were caused by electric bikes in Zhengzhou, in China’s Henan province. The NB-IoT unit from China Mobile and Huawei incorporates GPS / BeiDou positioning, and offers anti-theft tracking, fire warning, and power alarms. “The success created a blueprint for other transportation applications,” says GSMA. It adds: “For operators, the system can reuse LTE resources to reduce deployment costs, while developing a large number of IoT users, and creating new revenue-generating services. For city authorities, it provides a crucial tool to defeat theft and fire... and improve urban traffic capacity. For [bikers], it increases the riding efficiency, safety, and security.” – D OW OA TN OL OU CK T I CL DIGITAL FACTORY SOLUTIONS: PRIVATE 5G F E AT U R E R E P O R T Where and how will mobile operators manage private 5G enterprise networks? PRIVATE 5G ENTERPRISE AUGUST 2021 by James Blackman Editor, Enterprise IoT Insights NOCs 15 F E AT U R E R E P O R T PART 3 | Disruptive NB-IoT is a hard sell for anxious enterprises – the real challenge for IoT Ten years of financial recession, geopolitical tension, and global pandemic has made IoT a fraught gamble for wary enterprises H e-said / she-said; a last look at the finger-pointing between the rank and file in the NB-IoT sector, and a chance to zoom-out to assess the wider state of ‘things’. This inter-market bitching is futile, and wrong anyway, says Adarsh Krishnan, research director at ABI Research. If we are to play the blame game, to explain away the deathly pace of NB-IoT takeup outside of China, then there is a third party to consider: the enterprises themselves. They are just not ready, reckons Krishnan. Their anxiety is already sky-high, and rising – through 10 years of financial recession and geopolitical trade crises, before Covid-19 forced the global economy into lockdown. The pandemic has only made them more wary of ‘disruptive’ tech, he argues. The real challenge for ‘massive IoT’, and for those pushing NB-IoT as the springboard for it, is to make the technology un-risky, un-scary – un-disruptive. Krishnan comments: “[The delay] is because of the enterprises – not really the hardware vendors or airtime suppliers. Most of the technology issues, 80-90 percent, have been solved. It is more about demand, and how enterprises want to implement the technology. That is what’s taking longer. Be- 16 KEY NB-IOT CHALLENGES – #4 | CHIP SHORTAGES T he impact of the global chip crisis, has been widely reported on the automotive and electronics sectors. But the IoT market has been damaged, as well. “Oh, it’s terrible, across everything. We are so under-served on wafers; we could have sold a lot, lot more this year,” reflects Svein-Egil Nielsen, tech chief at Nordic Semiconductor. The diminishing supply is exacerbated by spiralling demand, as Covid-19 has obliged society to track everything from vaccine shipments to social distancing. Satellite firm Inmarsat says 84 percent of global companies are accelerating IoT because of Covid-19; IoT consultancy Eseye says Covid-19 has impacted the IoT plans of 98 percent of US and UK enterprises. But the chips are down. For Nordic, which claims the disjunct will not to be easily resolved. “The delay is enormous. We could have shipped so much more. It will be a terrible year next year, as well.” cause the whole of the last decade has been uncertain – with financial recession, geopolitical issues, now this pandemic, and all these chip supply issues. “These have caused anxiety. The supply side can keep churning out great solutions, which can help in lots of ways. But unless enterprises are confident of their own businesses, and certain of their revenues, then they won’t invest to implement them. Unless they have to. And they will be cautious for the next 12-18 months, just to see how the market bounces back [post-pandemic], and how revenues stabilise, before they start to invest in new technology.” STRAIGHT FIGHTS A quick recap of the discussion so far. For hardware vendors and solution providers, the fault lies with the carrier community (outside China), which has had its head turned by 5G and brain scrambled by LTE-M. For their money, operators have failed to get to grips with NB-IoT. The response from the other side is that industrial revolution just takes time. As Vodafone says on pages 24-26, it is an OEM-driven market, after all. The implication from Vodafone is its fresh supply of dirt-cheap NB-IoT in 50-odd territo- F E AT U R E R E P O R T ries is decently timed to meet rising demand in Europe and North America. Most of the issues – roaming, billing, interoperability – have been fixed, says this counter-narrative. And if we are point-scoring, then who says $5 for hardware goes far enough? Those are not Vodafone’s words, to be clear; but they are out there, somewhere, whispered on the wind of industrial change. In a straight fight, on hardware availability and pricing, does NB-IoT really promise a knockout against Sigfox, and particularly against LoRaWAN, yet? And, what about a match-up on current-draw, frequency modulation, and developer ecosystems? But, then, massive IoT is a multi-dimensional headwreck of a market, where suppliers align uneasily behind warring technologies, growing increasingly paranoid and agitated as they wait for the penny to drop. Krishnan comments: “One side points fingers about the billing and the roaming, and the other side says the hardware still isn’t cheap enough – especially when LoRaWAN and Sigfox are talking about less than $5, and even $1.” There’s the whisper. Where does his sympathy lie? He probably doesn’t have much, just because it is not his job to; but as Krishnan looks at the market, does he understand one side more than the other? “For me, it is the fault of neither side,” he responds, diplomatically, perhaps. GRIM ANCHORAGE “These are brilliant technologies, which enable lots of use cases. But there remains uncertainty about how they pay back. That is the reason the IoT market has not grown as quickly as expected. ” Adarsh Krishnan, Research Director, ABI Research He gets stuck into his argument that a wild 10-year storm has, conversely, created a grim anchorage for tech buyers and a dead calm for tech vendors, and that NB-IoT has simply struggled to catch a sail. There are exceptions, he notes, in industries like energy and healthcare, but the general rule is disruptive tech is hard sell for anxious businesses. He says: “These are brilliant technologies, which enable lots of use cases. But there remains uncertainty about how they pay back – not just in five and 10 years, but in a shorter time. That is the reason the IoT market has not grown as quickly as expected. Its value is clear. This evolution from traditional systems to IoT-enabled systems is inevitable; the focus on sustainability, for enterprises and their products and services, won’t work without tech-backed systems. “So the viability of IoT is clear, too. The question is about how you implement it Tech with benefits – LPWA network connections by app 3.5bn Commercial fleet 3bn 2.5bn Asset tracking 2bn Industrial / environmental 1.5bn Enterprises – asset tracking will dominate the wider LPWA section of the IoT market in the next years, says ABI; growing more than three-fold in 2022-24, and by two thirds in 2024-26. Vodafone, below, talks up NB-IoT capabilities case-by-case. APPLICATIONS BENEFITS Gas meters Battery life, non-continuous throughput; propagation Battery life, non-continuous throughput; propagation Water meters Battery life; cheap install; low / non-continuous throughput life; periodic Smoke / fire alarms Battery device testing Battery life; Garbage sensors network coverage life; Environment sensors Battery network coverage Parking monitors 1bn Buildings & security 0.5bn 0 Smart metering 2020 2022 2024 2026 Source: ABI Research Source: Vodafone 17 F E AT U R E R E P O R T Uncertainty– enterprises are interested in IoT, but wary after a decade of recession and geopolitical crisis (Image: 123rf) more efficiently. Which is where the challenge is: how do you transition to these systems, without disruption? Because IoT is described as ‘disruptive technology’. But the market cannot let it disrupt business and derail enterprises. It has to bring rapid gains. Because enterprises have faced great uncertainty, most of the last decade. They do not want another tech-driven uncertainty.” He adds: “The question is how to make digital change more seamless – so it is as least-disruptive as possible. These technologies are quite radical in how they change a business. But you don’t want this change to bring problems as well. That is the balance to strike in the implementation, and what the industry is trying to solve. Tech providers have been pushing their solutions, but not necessarily hearing what enterprises want and fear.” KEY NB-IOT DEPLOYMENTS – #5 | SMOKE DETECTORS, CHINA China Unicom + Taihe Ann (2018/19) A nother golden oldie from China’s mad-paced IoT adventures, and a seminal deal in the history of NBIoT; this one involves China Unicom and Huawei (of course), plus smoke alarm maker Taihe Ann, IoT module manufacturer Lierda, and systems integrator Dabang. The five deployed 170,000 NB-IoT connected smoke alarms in rental homes in the Yuhang district of Hangzhou in China’s Zhejiang province. The logic, like with most IoT jobs, is to get a jump on infrastructure management – and, in the case of remotely monitored detectors, operating as “automated sentries”, on disaster scenarios. The sensors, fitted with 3000mAh batteries and slated to last for three-to-five years, notify a cloud management platform and activate related devices, such as alarms, as the density of smoke or gas goes over a predetermined threshold. The platform 18 can be organised to alert building owners or managers, as well as emergency services, via voice and text messages. As they are battery powered, per the NB-IoT prescription for low-powered IoT, they are well suited to old areas of cities where buildings are densely packed and sensors are hard to fit. Taihe Ann is selling NB-IoT smoke alarms off-the-shelf with radios and airtime from Huawei and China Unicom; China Unicom is supplying the units via its enterprise channels for a monthly rental fee. The deployment has reduced the cost of fire monitoring and fire fighting, and improved response times, said China Unicom. The 170,000-strong deployment was supposed to be extended across the whole city of Hangzhou; but an update on the project has not been easy to find. Either way, the project has worked as a harbinger for similar deployments. Huawei – involved in most China deals (Image: 123rf) China Telecom has partnered with Sunsea AIoT to install 500,000 general-purpose ‘smart-city’ NB-IoT sensors across 37 square kilometres in the Jing’an district in Shanghai to detect smoke and gas (and water pressure in fire hydrants). China Mobile has installed 100,000 NB-IoT alarms for sensing temperature, smoke, gas, and fire. F E AT U R E R E P O R T If You Want to Build the World’s Most Advanced and Powerful IoT Devices Start with the world’s most advanced and powerful cellular IoT connectivity solution. 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Contact us today at sales@sequans.com, or visit us online at sequans.com/monarch-2-gm02s-module. 19 F E AT U R E R E P O R T PART 4 | Massive IoT starts to come online – as roaming and billing finally get sorted A handful of MVNOs like Belgian firm BICS have taken the challenge of IoT roaming as an opportunity – and shown the rest how to do it L et’s give the floor over to the other side, to hear in turn from international cellular provider BICS, an old telco familiar that has reinvented itself as a virtual operator for global IoT, and UK-headquartered Vodafone, arguably the staunchest carrier champion of NB-IoT from the get-go – and the one, apparently, making most progress with it (see pages 24-26). We should start with BICS, just because its raison d’etre in IoT is to solve the issues no one else has. At the start of 2021, the Belgium-based firm offered IoT roaming in 30 markets in total, via either NB-IoT or LTE-M. Today, late 2021, BICS has 12 NB-IoT deals and 30 30 LTE-M tie-ups. But it perceives a late second wind for cellular narrowband, blowing through the global IoT market. It is now signing new deals for NB-IoT roaming at a faster rate than for LTE-M. It has a loose target of “more than 20” NB-IoT arrangements by year-end (two months away, at writing). This reflects the global picture; there were, at last count, twice as many NB-IoT networks as LTE-M networks (106 versus 53, according to the GSMA). Significantly, only Mexico shows up on GSMA maps as a single-mode LTE-M market; everywhere else is 20 doing NB-IoT as well, or NB-IoT on its own. Importantly, issues with network interoperability and airtime billing, as well as with roaming, have been dealt with, says BICS. The valedictory shouts that went up early last year, from tech rivals and telco critics, when NTT and DISH ditched NB-IoT in Japan and the US, going backwards on major infrastructure gambles, now sound like faroff cries, maybe. These episodes say more, perhaps, about the short-term priorities of the protagonists than the long-term prospects of the technology, or of the so-called ‘massive IoT’ movement at large. FINALLY POISED “The market needs NB-IoT for massive scale... Even if it has taken some time, it is starting to progress for a number of reasons – there are now more NB-IoT networks, and more roaming between them.” Luc Vidal-Madjar, Head of M2M and IoT, BICS For everyone in this report, in fact, NB-IoT is poised finally to drive the kind of ‘massive’ scale the IoT market has promised for years. For BICS, which offers cellular roaming of various sorts via 700 mobile operators in 30 countries, NB-IoT is the growth engine for the company – without comparison. About 20 percent of the SIMs it sells today go into modules that support NB-IoT, from virtually nothing a year ago. “This has [all] happened this year; last year, [the percentage] was really very small,” says Luc Vidal-Madjar, head of M2M and IoT F E AT U R E R E P O R T Enterprise IoT – we have it covered. Through our Making Industry Smarter, Digital Factory Solutions, Digital Industry Solutions, and Talking About Industrial Revolution report series, Enterprise IoT Insights brings in-depth coverage and analysis of the key trends driving digital change. Click cover images to load reports. DIGITAL FACTORY SOLUTIONS: PRIVATE 5G TALKING ABOUT (INDUSTRIAL) REVOLUTION TALKING ABOUT (INDUSTRIAL) REVOLUTION DIGITAL FACTORY SOLUTIONS: INDUSTRIAL 5G TALKING ABOUT (INDUSTRIAL) REVOLUTION APRIL 2021 Where and how will mobile operators manage private 5G enterprise networks? Conversations with industry about STATE of ‘THINGS’ in SMART IoTin PRIVATE 5G HEALTHCARE AUGUST 2021 ENTERPRISE by James Blackman Editor, Enterprise IoT Insights NOCs The trouble with M AY 2 0 2 1 The J U LY 2 0 2 1 MANUFACTURING – connected healthcare got a boost with Covid-19 – but access to healthcare innovation hinges on by Sean Kinney access to broadband – how enterprises are grasping for and grappling with industrial IoT by James Blackman Editor, Enterprise IoT Insights APRIL 2021 INDUSTRIAL 5G SLAs – industrial 5G network performance, and the new turf war over the supply and management of 5G in Industry 4.0 by James Blackman Editor, Enterprise IoT Insights DIGITAL INDUSTRY SOLUTIONS: SHORT + LONG RANGE IOT DIGITAL FACTORY SOLUTIONS: AUGMENTED REALITY Better together JULY 2020 Challenges SHORT & ONG with DIGITAL CHANGE IN HEALTHCARE RANGE DECEMBER 2020 – from low-level IoT sensing to bigbang 5G and AI; and how Covid-19 has turned the market both on and off IOT – the sudden clamour for hybrid IoT and why two IoT technologies are better than one by James Blackman Editor, Enterprise IoT Insights by James Blackman DIGITAL FACTORY SOLUTIONS: ANALYTICS AND AI MAKING INDUSTRY SMARTER: METALS & MINING DIGGING WITH DECEMBER 2019 by James Blackman SEPTEMBER 2019 how connecivity, analytics and automation are transforming the mining industry AI – ON THE LINE how advanced analytics and artificial intelligence are transforming the how production line by James Blackman KEEPING THE LIGHTS ON – WITH GREEN Smart grids and smart meters – how IoT is bringing order and intelligence to distributed energy systems Report sponsor - and the rise of the workers How augmented reality is transforming production, and raising the influence of workers in the robot age as a PLATFORM – for smart buildings and smart cities, and how use cases, strategies and solutions compare LTE &5G how incoming cellular technologies will transform smart manufacturing Editor, Enterprise IoT Insights Digital Factory Solutions by James Blackman Editor, Enterprise IoT Insights MAKING INDUSTRY SMARTER: PORTS & SHIPPING iot SMA R T POR T S LPWA connectivity Automation and intelligence with private LTE / 5G networks and public network slices a matchup between LoRaWAN and Sigfox in the blue corner and NB-IoT and LTE-M in the red Digital Industry Solutions July 2019 in IoT – who is winning what? by James Blackman Editor, Enterprise IoT Insights iot industrial by James Blackman iot Report sponsor MAY 2019 Editor, Enterprise IoT Insights SMART LIGHTING report series DIGITAL FACTORY SOLUTIONS: connectivity by James Blackman DIGITAL INDUSTRY SOLUTIONS: SMART LIGHTING MAKING INDUSTRY SMARTER: SUPPLY CHAIN & LOGISTICS The promise of smart farming and the challenge of CONNECTING AGRICULTURE INDUSTRIAL AR APRIL 2020 by James Blackman Editor, Enterprise IoT Insights Editor, Enterprise IoT Insights MAKING INDUSTRY SMARTER: AGRICULTURE & FARMING JUNE 2019 POWER Editor, Enterprise IoT Insights by James Blackman MAY 2019 MAKING INDUSTRY SMARTER: ENERGY & POWER by James Blackman Editor, Enterprise IoT Insights OCTOBER 2019 Editor, Enterprise IoT Insights Editor, Enterprise IoT Insights Editor, Enterprise IoT Insights JULY 2019 DATA CROSS NG THE from ‘co-creation’ to ‘co-configuration’ – and the challenge to bring industrial IoT to scale Making Industry Smarter by Juan Pedro Tomas MARCH 2020 by James Blackman, editor, Enterprise IoT Insights Editor, Enterprise IoT Insights IT OT D VIDE iot – where are cities with IoT, 5G and AI, and where are all the ‘lessons learned’? Editor, Enterprise IoT Insights MAKING INDUSTRY SMARTER: HEALTHCARE DIGITAL FACTORY SOLUTIONS: AGILE INNOVATION SMART CITIES REPORT SERIES FEBRUARY 2019 MARCH 2019 FROM SUPPLY CHAIN TO DEMAND CHAIN how IoT and AI are enabling the supply chain to flex to changing demand by James Blackman Editor, Enterprise IoT Insights AI & IOT - AT THE when to bring CUTTING industrial intelligence EDGE closer to the action REPORT SPONSOR by James Blackman Editor, Enterprise IoT Insights enterpriseiotinsights.com/channels/reports Talking About Industrial Revolution iot 21 F E AT U R E R E P O R T at BICS. He zooms out, and offers some context, explaining the shift with NB-IoT. “The market needs NB-IoT for massive IoT. And even if it has taken some time, it is starting to progress for a number of reasons, mainly just because the technology is more mature. There are now more NB-IoT networks, and more roaming between them.” For the record, another 20 percent of SIMs from BICS go into LTE-M capable modules, and the rest into standard cellular fare. Interestingly – and contrastingly with chipmakers Sequans and Nordic Semiconductor, promoting dual-mode NB-IoT/LTE-M units – Vidal-Madjar reckons there is not much hardware crossover between these two technologies; enterprises are choosing one or the other for global IoT deployments, he says. “It is very rare to have modules that do both… If the enterprise wants as much global coverage as possible with a single module, then that is a way forward. That Roaming– global NB-IoT is opening up (Image: 123rf) is correct. But so far as we see, enterprises are making the choice between them; they don’t combine both. That is the choice we see,” he explains. It probably reflects more on BICS’ distribution channels; certainly Sequans and Nordic maintain their dual-mode strategies are appropriate and correct. Either way, some of the angst in the cellular IoT market has eased; the message is NB-IoT is starting to bubble up. Speaking on a BICS-hosted webinar at the end of 2020, US electronics distributor Avnet said 70 percent of “cellular requests” from IoT solutions vendors had clauses about NB-IoT. The big operators are starting to sign sizable deals; at least one, Vodafone, is talking about multi-million sized volume-deployments, across markets (see pages 24-26). No other LPWA technology has ever reached such a scale in single contract deployments, and massive IoT will never make good on its grand promise without them – and without such deals falling, suddenly, KEY NB-IOT CHALLENGES – #5 | INTEGRATED SIMS N B-IoT limitations give innovators pause,” writes Ireland-based SIM specialist Kigen, relation off UK chip design firm Arm. “For almost any business, battery life of 10+ years and the ability to support deployments on a global scale means frequent carrier changes – [which] requires a physical switch of SIM card. The alternative: you’re stuck with the same operator’s coverage blackspots and costs for the device’s lifecycle. The possible solution: remote SIM provisioning (RSP).” RSP is the only way the IoT industry is going to “break the scale barrier”, as Vodafone puts it. The GSMA spec’ for RSP enables remote management of operator profiles in embedded SIM and integrated SIM (eSIM and iSIM) functions. “Successful scaling of IoT requires the integration of RSP and NBIoT,” notes Kigen. But NB-IoT is not ready; continuing issues with roaming and billing 22 (#1 and #3) are holding up multi-market deployments, anyway. More profoundly, NBIoT does not support the necessary functions to deliver the SIM profile over-the-air. Remote provisioning is conducted via the SM-SR (subscription manager / secure routing) function using a connectivity ‘bootstrap’; as it stands, the ‘bootstrap’ has to be carried on standard cellular tech. As well, the ‘bootstrap’ activates a ‘handshake’ via SMS, which is also unsupported in NB-IoT. Any IoT device that excludes SMS in order to reduce complexity – by ejecting a 2G radio, for example – precludes the option of RSP, and over-the-air upgrades. Not ideal. The workaround is to include for an SMS-capable technology such as 2G to allow fallback for RSP related operations. This is how Kigen is getting around the problem, including with a proprietary iSIM (ahead of its standardization), moving the SIM into the permanent hardware array. Kigen is engaged with Altair (Sony Semiconductor) and Vodafone on the Bayer project (see, deployment #10), notably. Again, progress is being made, but it is interminably slow. Integrated– SIMs in the hardware array F E AT U R E R E P O R T like dominoes. The sense is the run is about to topple. Vidal-Madjar comments: “We are convinced NB-IoT will play a fundamental role to drive massive IoT. Many use cases need extremely long battery life, which NBIoT brings – especially large-scale IoT deployments with no power access.” TECHNICALLY COMPLICATED Global IoT roaming is the thing that will make IoT massive, says BICS. Of course it does; it is hawking a global IoT SIM, connecting to NB-IoT or LTE-M, plus traditional cellular for fall-back machine-to-machine comms. But the market agrees, as well, and recognises the work by smaller MVNO-style providers, such as BICS, to offer backend integration between carrier infrastructure – on top of wider international roaming. Vidal-Madjar reflects: “Mobile operators have worked at roaming, and reinvented the business model for billing. It has taken time. But it now works; things are moving. International connectivity is important for IoT to take off. Because IoT will only be successful if it is simple for the enterprises to deploy in global markets. They want one SIM card that works everywhere.” He explains: “Roaming is technically complicated; additional core network elements have to be interconnected. It is also commercially complicated, because traditional inter-operator billing charges per-megabyte of data, and NB-IoT carries only kilobytes of data – so that model won’t fly.” Generally, billing is better; BICS is offering a monthly NBIoT subscription for less than $1 per month for the top-end plan, or a single downpayment for the life of the product. But its message about simplicity will sustain it longer, even as the likes of Vodafone broker far-away roaming and rock-bottom billing. “We have simplified global IoT deployments for enterprises, so they don’t need a local partner in every country. They don’t need to do local integration with each operator in each different country. But it is more than just that; because we are making global deployments manageable. Connectivity is one part, but it needs to be as simple as possible, as easy as possible – everywhere.” KEY NB-IOT DEPLOYMENTS – #6 | STREET LIGHTS, CHINA China Mobile + City of Gaoyou (2018/19) T his one goes back a couple of years, like most of the China entries, but also goes somewhere different: into the smart street-lighting space, the traditional reserve of proprietary IEEE 802.15.4 technologies, but is slowly migrating towards cellular (and non-cellular) standards. Of these, NB-IoT appears to be a prime candidate to pick up business, as China Mobile has demonstrated in Gaoyou, a county-level city under the administration of Yangzhou, in China’s Jiangsu province. In truth, the China Mobile deployment in Gaoyou followed similar projects by its country rival China Telecom, which had already installed 280 NB-IoT controlled street lamps in pre-commercial trials in 2018 in (we think) Chongqing in China’s Sichuan province, variously in Xiajing province, and in the new smart-city development of Xiong’an in Baoding in Hebei province. But China Mobile, with a deal with the Yangzhou Gaoyou government, has released more info about its project. It says the test case showed NB-IoT worked, by connecting individual nodes in the light poles or ‘loop controls’ for clusters of lamps to a cloud management platform, to reduce operational costs and also to establish a platform for further smart-city sensors. It noted, NB-IoT coverage tends to be good in cities, where cellular networks have been densified to cope with busy populations, and connectivity for lighting controls is therefore reliable. And in case you missed it – because it has been written about in these pages extensively – smart street-lighting is arguably the clearest smart-anything business case of them all. Remote-controlled streetlights enable city authorities and Gaoyou –bright NB-IoT lights, big IoT city energy utilities to dim lighting in dynamic fashion, with the seasons and the weather, as well as for local events. They also introduce live monitoring of performance, and a means to run preventative maintenance. All of which drives down energy and labour costs, in the end. The maths is simple, actually. When the hefty energy savings from the upgrade to LED fixture is added-in, the calculation even reveals a way to bankroll other smartcity apps with softer ROIs, which can be attached to new NB-IoT sensor platforms in lamp poles. The outlook, then, for NB-IoT connected street-lights is good. There is no word, we can find, on how many lights China Mobile has connected in Gaoyou, but it has expanded and repeated the project, it implies. “The city is in a position to expand their intelligent city services and begin getting a fuller picture of the status of various locations as needed. The pilots deployed in various locations have taught China Mobile that NB-IoT is a clear contender to connect large numbers of streetlights and sensors in the future.” 23 F E AT U R E R E P O R T PART 5 | Did IoT just get massive? Vodafone’s multi-million multi-market NB-IoT deal Vodafone says it has just signed the biggest ever NB-IoT deal outside China – a veritable ‘scale breaker’, it says. Is this the tipping point? A nd so to Vodafone, and the biggest single contract in the history of NBIoT, we think; confirmation that IoT – and specifically the sub-segment of the market sprung with NB-IoT – has hit the big time, at last. Almost; maybe just. Because the UK-based operator is about to announce the biggest ever IoT airtime supply deal outside of China, stretching to millions of NB-IoT connections. Vodafone has rock-bottom airtime fees, at €12.99 for 10 years (a fraction of BICS’ topend global IoT fees, at least), and enough coverage, in 55 markets and counting, to make NB-IoT massive, finally, it says. The contract, with an unnamed manufacturer, outguns the biggest non-China deals so far on equivalent low-power wide-area (LPWA) tech, including LoRaWAN and Sigfox, which have struggled to break the million-mark on connection volumes. It is the news a large chunk of the broader tech industry, making bets on ‘massive IoT’ as a platform for digital change, has been waiting for. (And, worth mentioning, in light of NB-IoT’s travails in the shadow of 5G, and its confused portrayal even as a 5G technology; it has nothing to do with 5G, just a cobbled-together LTE spinoff that has been 24 “The various strings are coming together – the networks are stronger, roaming is in place, devices are rolling off the production line… It is exciting because it breaks the scale barrier.” Phil Skipper, Group Head of IoT Strategy and Business Development, Vodafone Business made into a laughing stock by twitchy market watchers.) But the news is not in, quite yet. Vodafone is playing its cards close to its chest; there is no mention, for now, of the identity of its OEM partner, nor of the nature or remit of the deal; a formal announcement is pending. But it is multi-market and multi-million, it says, with IoT units going ready-connect- ed, rather than bootstrapped for remote provisioning, into 20-odd markets in Europe, and wherever Vodafone has op-cos or roaming mates, potentially. Phil Skipper, group head of IoT strategy and business development at Vodafone Business, says the ball of snakes that has so far strangled cellular IoT – mainly around billing, roaming, interoperability – has been F E AT U R E R E P O R T unravelled, finally. “This was never going to be a quick game,” he remarks. It is the same message from BICS, and the same almost-message from most others in this report. Skipper says: “We are just now starting to see those first large OEMs coming to market. And there is one, which I can’t say much about, which is big – it is multi-million connections. This is what we are seeing now; that the various strings are coming together – the networks are stronger, roaming is in place, devices are rolling off the production line… For us, it is exciting because it breaks the scale barrier. That’s how we see this.” STRAIGHTISH COURSE Skipper steps outside of the ring when asked about the verbal right-hook from hardware vendors, swinging in the direction of airtime suppliers, because of their perceived dithering on roaming, billing, and everything else. Vodafone’s trajectory with NB-IoT has gone along a straight-ish course, he says, and has timed just about with the late market demand stirred up by the other side. “It has taken a long time because it is the first network to be built only for IoT. And because you have to roll the network out, which takes an amount of time, and, more than that, you have to roll it out so it delivers the performance the technology promises – in terms of deep penetration and long battery life. The other reason is the OEMs have been required to design NB-IoT into their products – which take time to go from the drawing board to production.” He adds: “People forget it is an OEM driven market, and the OEMs are only interested if there is interoperability. So our focus, as the IoT business in Vodafone, has been to build the roaming footprint. You go to an OEM, and say to use NB-IoT, and they want to know which countries it works in. And our answer, now, is that it works across 55 networks – that we have 180-190 networks in the world, and we are already past 25 percent with NB-IoT.” The ‘scale-breaking’ deal with the unnamed OEM is a European affair, it might be noted, extended through roaming across 20 KEY NB-IOT CHALLENGES – #6 | MACHINE LEARNING KEY NB-IOT DEPLOYMENTS – #7 | WATER METERS, UK Vodafone + SES Water (2020/21) W T he problem with NB-IoT is it is limited; data rates top-out at 200 kbps (downlink) and payloads peak at 1600 bytes per message. And if you want 10 years of battery, you can’t go higher than 200 bytes per day. Which presents challenges for network transmission and power consumption. As such, the discipline for IoT is to run processing at the ‘edge’, where the action is. For low-power IoT, the only option is to embed compute in the module, as miniaturised ML, or ‘tinyML’. This way, the process of ‘inferencing’ insights on cloud-trained ML models happens in the device, and much of the two-way traffic to the cloud is stopped. Only the anomalies – the events driving the action – are sent over the air, to enable centralised control of devices, and further train the ML engine. Meanwhile, the network is unburdened, helping to manage airtime costs and conserve battery. The tinyML movement is gathering pace; Nordic is working with US based tinyML specialist Edge Impulse to embed ML into its IoT portfolio, including into its Bluetooth-based nRF52/3 series and cellular-based nRF9160 (see pic) products. ater metering is the archetypal NB-IoT app, behind a number of deployments in China. In Europe, Vodafone has signed a 10-year water metering deal with UK-based SES Water to install NB-IoT sensors into a smart water distribution network with a view to cut leakage by 15 percent over five years and by more than half by 2045. The project covers parts of Surrey, Kent, West Sussex, and London. No figures have been given for the number of meters to be connected to NB-IoT, but SES Water manages water supply to around 300,000 homes. The pair are installing digital meters, sensors, and acoustic loggers on underground mains water pipes, to connect over Vodafone’s NB-IoT network. The acoustic loggers ‘listen’ for escaping water in the distribution network to determine when and where leaks occur. Data is collected and transmitted across the system; SES Water is alerted in the event of any leaks, low pressure, or other network abnormalities. Meters readings provide insight into customer demand patterns, also, enabling SES Water to help customers to better manage their own water usage, reduce bills, and troubleshoot leaks before they cause damage. Vodafone is working in the same way with South East Water and United Utilities in the UK to detect leaks in underground pipes and other infrastructure. It is estimated three billion litres of water is lost to leaks everyday in the UK, equivalent to 1,268 Olympic swimming pools, the company said. 25 F E AT U R E R E P O R T countries. Skipper makes an interesting response to a jumbled question about how a vendor market trying to break-in new technology perceives ROI, and whether, in the end, Vodafone’s €12.99 deal for 10 years of NB-IoT airtime comes from a realisation that low-power IoT needs to be sold in the early days almost like a loss-leader. He explains: “You can see where we’ve come from; we’ve said, ‘Right, €1.29 per year is the entry point, where it makes sense for us and it makes sense for customers. You have to think about the enabling price – €12.99 over 10 years. Because all of these myriad IoT applications only work if they get started, and we think the get-started price is €1.29 per year. The value [for the customer] is in what they do with it. “The value for us is to take a smaller slice of a larger number of devices. But you have to enable that large volume of devices to enter the market. And the price is about right now, for the modules and the connectivity. We are heading down into the bottom of the pyramid, and to serve that segment you have to make sure you connect at a price point that supports the customer’s business case – almost rather than ours. Because then they can scale.” The €12.99 prepay plans, called IoT Easy Connect, cover LTE-M and 2G, as well as NBIoT, in most countries in Europe, and allow for 750MB of data and 250 SMS messages over the 10-year life of the contract. They are available online, and are geared more towards IoT developers, and hobbyists; larger-scale airtime contracts are negotiated individually, flexing four ways effectively between traffic volumes, power usage, connection volumes, and price. Skipper says: “If someone turned up on the doorstep and wanted to buy five million, then we‘d have a different conversation. But the basic mechanism is in place. That is the trick. It is not just about how much you charge, but the flexibility to charge any way the customer wants – prepayment, post-payment, or rolled into the hardware… But with IoT, there has always been a limit to how low you go, and this opens up a new part of the market.” 26 KEY NB-IOT CHALLENGES – #7 | CROSSOVER STANDARDS T he point that the cellular industry missed the chance to distinguish NB-IoT and LTE-M in the early days, dampening the potential change-impact of the former by conflating it with the latter, seems profound. The notion gathers more meaning with the development of the standards, and particularly with the slow introduction of Cat-NB2, the second-generation version of NB-IoT (Cat-NB1), which brings certain low-power advances, most notably better mobility. The jeopardy is the blurring with LTE-M becomes a technical reality, and not just a strategic fudge. NB2, standardized in 3GPP Release 14, introduces NB-IoT cell roaming (handover) when devices are connected, as well as when they are idle. It also supports higher data rates (127 / 159 kbps for the downlink / uplink, compared with closer 26 / 62 kbps with NB1), enhanced positioning with observed time-of-arrival (OTDOA) and cell-identity (E-CID), plus multi-carrier mode, multicast transmissions, and new frequency bands. In theory, the new capabilities will drive new use cases, but the question about how to communicate the value of twin technologies arises once again. The question goes to everyone: to operators considering whether to deploy NB-IoT adjacent to LTE-M (and vice versa), and how to differentiate their associated commercial offers; to hardware makers and solution developers asking whether to stick-or-twist on single / dual-mode solutions, and how to eke-out more efficient products; and to enterprises struggling already in an overly-fragmented market. The conundrum is well captured by Svein-Egil Nielsen, the outspoken tech chief at Nordic Semiconductor. “Same shit, different wrapping,” he says. “You know, there is something in that. Increasingly, operators are choosing to deploy both technologies in the same markets – because they somehow serve slightly different use cases, and because they don’t really understand the market either, and because they don’t want to miss any opportunities. But I still think you can solve some of the same problems with both technologies. We see more dual opportunities, even in these markets where they are deploying both technologies.” Dual-mode – the Monarch cellular IoT platform covers the bases, whether geographical, or technical F E AT U R E R E P O R T nRF9160 cellular IoT System-in-Package Most compact, complete and energy-efficient cellular IoT solution on the market Tailored for logistics and asset tracking Certified for global operation Integrated LTE-M/NB-IoT modem and GPS SIM and eSIM support Dedicated application processor and memory 64 MHz Arm Cortex-M33 Arm TrustZone CryptoCell START DEVELOPING TODAY nordicsemi.com/nRF9160 27 F E AT U R E R E P O R T KEY NB-IOT DEPLOYMENTS – #8 | ELECTRIC METERS, SAUDI Zain + Saudi Electric Company (2020/21) Q AFTERWORD L et us consider, again, this issue of billing. Because it seems like airtime costs, and not hardware costs, are the biggest philosophical barrier for the cellular market to get a handle on massive IoT. Hardware fees will go down as shipment volumes go up, invariably, as the China story has demonstrated. The technical barriers of roaming and interoperability are being dealt with, albeit more slowly than expected, and in sometimes interminable fashion. But billing is the gateway function for NBIoT connections to multiply, even as technical functionality is still being put right. Billing remains the blocker for the cellular industry to drive new IoT traffic, and build new IoT applications, whether attached to parochial installations or international deployments. In the end, multi-market business will be simpler when the technical hurdles go away, but nothing will get written at all if the price is not right to begin with. And the good news is the picture for NB-IoT airtime billing looks far clearer than a year ago, and even six months ago. Even 28 Nordic Semiconductor, producing the kind of top-end dual-mode IoT units that preclude it from rubbing up against the bottom feeders in the Chinese market, is happy enough with the state of ‘things’, in late 2021, going into 2022. “The carriers could have done better. But their pricing models are starting to make sense; that is for sure.” But Svein-Egil Nielsen, the company’s chief technology officer, also wants to move the conversation on, as well. Blame is a losing game, he suggests, which only seeks to grapples with the past when the future is obscure. Working with BICS-style MVNOs iBASIS and Arkessa on airtime, and taking its cues from the developer community at the coal face of IoT, Nielsen wants to talk instead about the total cost of ownership (TCO) (see NB-IoT Challenge #3). “We discuss TCO for the 10 year life of the solutions, to include cellular IoT airtime and certification, and all the services on top. That is important, and takes the focus away from the hardware – and reveals, actually, that the hardware is the least of the problems. Because better hardware functionality uite possibly the biggest NBIoT deal of them; the Saudi Electricity Company (SEC) claims to have installed 10 million smart electricity meters in 12 months. How many of these are NBIoT connected remains unclear; Spanish smart energy devices maker ZIV, owned by Saudi outfit Alfanar, says it has supplied 550,000 to the cause, offering dual-mode power-line (PLC) and NB-IoT connectivity. Whether or not it is the same deal, ABI Research suggested the Saudi government has legislated to bring 10 million NB-IoT based electric smart meters online in due course. “The Saudi government has plans to use NB-IoT for electric meters as well – which will see about 10 million endpoints come online in the next few years,” said Adarsh Krishnan, research director at the firm. The ZIV design features a “sealed holster designed to also host a pluggable LTE Cat-1 module, it said. SEC launched its digital change project in late 2019, with smart metering at the heart of it. The new system automates the reading and billing process, allowing customers to interrogate and manage their energy consumption in “almost real time”. Of note, the 10-million swap-out of analogue meters was carried out through the height of the Covid-19 pandemic, in 2020/21. Zain’s involvement is unconfirmed; but it is the chief NB-IoT operator in the kingdom, and has been active with Nokia for some years to roll out NB-IoT. It is included in the header just for the sake of consistently – to keep with the operator-led format. F E AT U R E R E P O R T KEY NB-IOT CHALLENGES – #8 | HARDWARE CERTIFICATIONS A nything to add? The question goes to Svein-Egil Nielsen, at the end of our conversation (pages 10-13). Yes, it turns out; Nielsen has a beef about hardware certifications, as the last (maybe) roadblock for massive IoT. “One of the things is this problem of scale, [and the task] to build solutions that are easy, and the biggest obstacle to that is the carriers. They treat every IoT device like a mobile phone, and run it through the ringer with these extremely complicated certification processes,” he says. “They have not delivered on their promise to make cellular IoT an easy solution to deploy. Some carriers want to test everything. Which is absurd because we are running the same checks [with everyone else]. “The carriers have not made it easy. They want to test everything – which is absurd because we are running the same checks [with everyone]. There is no end to it.” You change the firmware, and you have to go back to run millions of tests that you’ve already done elsewhere. There is no end to it. They come from a world where a handful of phones are introduced each year. They have big labs full of guys in white frocks; it is like they have to justify their jobs.” He goes on: “They have come a long way with roaming and billing, but those are historical issues. The problem with certification is still not solved. It is way too cumbersome for us as a company. They have not simplified the process for IoT products; it is not fast enough. The Global Certification Forum (GCF) should have taken care of this – to say, if you pass here, then you pass everywhere. Some carriers are happy with that approach, but a whole pack of them insist on doing things their own way. It makes no sense.” We’re glad we asked; is there anything else to add? Yes, actually... KEY NB-IOT CHALLENGES – #9 | PATENT LICENSES S o, what else? Patent licensing is troublesome, too, says Nielsen at Nordic – another legacy of the old world, turning each year on a ... handful of bigger-ticket devices, that does not transfer easily to the new one, where an unknowable range of different devices will be connected for an unknowable range of applications. “That is the last thing that is holding this back,” he says. While licensing of cellular standard essential patents (SEPs) is well established for phones and base stations, the industry is still working out how to charge for usage of these technologies in various different IoT applications, including cars, domestic appliances, industrial robots, and remote “There isn’t an easy way to do it – a single place to go. We don’t mind where you go, so long as you can go somewhere. Because the whole process takes a lot of time.” meters. In particular, litigation has bogged down SEP licensing in vehicles, with disputes about where in the supply chain licensing should occur – from chip, to module, to telematic control unit (TCU), to the vehicle, itself. The confusion has delayed payments of fair, reasonable, and non-discriminatory (FRAND) royalty charges in many cases; the massive IoT movement has been grossly impeded, says Nielsen. “To apply an LTE standard, you have to pay some patent fees to someone – and in the mobile space that is invariably Ericsson, Nokia, Qualcomm, and a few others. They send an invoice, and you have to pay – and it has been that way for 20 years,” he says. But the IoT sector is disjointed and complex, and the same methodology does not work. A similar solution to the certification problem (above) is required, where a universal fee can be applied and the minutiae of SEP management is simplified. “There isn’t an established system to do it in an easy way – a single place to go. We don’t mind where you go, so long as you can go somewhere. Because the whole process, as it is, takes a lot of time.” 29 F E AT U R E R E P O R T KEY NB-IOT CHALLENGES – #9 | ELECTRIC METERS, SWEDEN Telia + Ellevio (‘20) T Metering – Saudi firm Alfanar is providing dual-mode NB-IoT and PLC electric meters for Saudi Electric Company (see right) reduces the on-air traffic, for instance, and affords a way to better manage the TCO,” he says. On this last point, Nordic Semiconductor has a developing line in miniaturised machine learning (tinyML) to embed analytics in power-constrained IoT modules (see NBIoT Challenge #6). The long-and-short of it, literally, is more inferencing can be done at the edge, on the device itself, and less in the cloud – so the twin burdens on the transmission network and device battery are reduced (although there is a power tradeoff with the onboard processing, as well). PLAYING CATCHUP But talk about TCO is the same conversation the non-cellular brigade, pushing LoRaWAN and Sigfox (and other technologies), has been having with enterprises for 12 months, at least. The logic, very clearly, says enterprises do not want to discuss, or even know, the individual price of hardware, airtime, applications, and everything else that goes into the IoT stack; they just want to know how to drive efficiency and business. It has just taken the mobile operators, used to the two-stage sale of handsets and 30 airtime, longer to see the business of digital change from the other side. Again, Vodafone, of tier-one operators, appears like it is leading the negotiation “For us, NB-IoT and LTE-M and 4G and 5G, plus satellite – that is the whole connectivity stack. We are trying to make it as easy as possible for customers to connect in the most appropriate way for their applications.” Phil Skipper, the director of IoT strategy and development, says NB-IoT has never played second (or third, or fourth) fiddle at Vodafone – to the point it has been drowned out by all the 5G-noise, as others in these pages have suggested. “The right tool for the right job,” is how the UK business describes NB-IoT, recently doubling its NBIoT cell coverage to cover 98 percent of the UK geography. Skipper says: “My department only does IoT; we are looking only at what IoT customers want to buy from us. Which is why we have this balance between 5G and NB-IoT, and everything else – they are all valuable assets, and we will use them all. People think you have to have NB-IoT or LTE-M or 5G – like it is or-or-or. For us, the aim of the game is to complete the set, and we are elia has a headline deal with system integrator ONE Nordic to connect approximately 900,000 electricity meters for electricity distributor Ellevio, which supplies power to 35 municipalities in Sweden. Telia was the first in the Nordic region to launch NB-IoT, in late 2017; the 10-year deal is its largest NB-IoT contract “to date”. Rollout started early last year, and will run through 2023. Ellevio has noted the “broader and deeper coverage” afforded by NB-IoT – “ideal for rural and deep indoor locations,” it says. But for Telia, which worked with country-mate Ericsson on its NB-IoT network, the new contract is only a part of the metering puzzle in Sweden. It is also working with integrators Sagemcom and Landis+Gyr on deals to supply utilities E.ON and Kraftringen in Sweden. Ericsson says it is “converting and managing” more than two million of the 5.4 million electric meters in Sweden with cellular. The Kraftringen deal is for “more than” one million, says Ericsson; the deal with E.ON should take Telia well beyond two million meters in Sweden. Ericsson’s review of Telia’s work with NB-IoT in the utilities space is a good read. It says: “Telia was able to show the TCO has become less than PLC and RF Mesh for last mile connectivity... It is rare in any industry to see the pace of adoption currently underway. Just two years ago, meter vendors were not building products designed for massive IoT. Normally, a revolution like this takes five to 10 years. Now, demand is outpacing supply and vendors are racing to make smart meters a part of the smart grid.” F E AT U R E R E P O R T “We have this balance between 5G and NB-IoT, and everything else – they are all valuable assets. People think you have to have NB-IoT or LTE-M or 5G – like it is or-or-or. The aim is to complete the set, and we are now rolling out LTE-M as well.” Phil Skipper, Group Head of IoT Strategy and Business Development, Vodafone Business now rolling out LTE-M as well.” The fact 2G is being retired (‘sunset’/’sunsetted’; see page 8) in global markets – the US is already pulling the shutters down; Europe is working generally towards a 2025 deadline; Asia Pacific is a couple of years behind – (and 3G is defunct in many countries, already) will make the old M2M market more discerning. Necessarily so, says Skipper, because IoT, running the gamut from low-power NB-IoT to high-fidelity 5G, makes exacting demands of network performance. “When we only had 2G, everything was on 2G. For IoT, the gap to 5G between what you get and what you need – and what it costs and what you can afford –is massive. The gap with 4G is big, too; with 2G, it is not LIFETIME VALUE So the negotiation with enterprises is more sympathetic, and the market dynamics are turning the right way. Maybe the carriers timed it right all along; maybe it is just that their excuses, at least when articulated by Vodafone, are well argued. It is interesting, on the billing issue to run the maths on the back of an envelope; a tally of hardware and airtime fees quoted in these pages, plus something for the service, gets us close to Nielsen’s estimated TCO for cellular IoT. “Working with our airtime partners, and talking with enterprises, we think you can get to $40-$50 over a 10 year lifetime for the TCO on a cellular IoT solution,” he says. Which seems to be where we are on NB-IoT pricing; the calculation shakes out like so: Covered – Vodafone says the rise of NB-IoT and LTE-M, and the fall at the same time of 2G and 3G in the next years, will leave the IoT space better served; these twin low-power made-for-IoT technologies will drive low-cost monitoring and tracking solutions, while 4G-LTE and 5G-NR will bring higher grade performance for powerful broadband and critical enterprise services. Cellular LPWA (NB-IoT) Cellular NR (5G) LOW PERFORMANCE HIGH IoT access tech – the complete set so huge. But when 2G disappears, we will have NB-IoT and LTE-M, and 4G and 5G. We will be left with this new strata of connectivity, which better reflects the full range of contemporary enterprise use cases,” he says. “Because you have to make sure what you’re offering really fits the application – that you’re not sticking shots into pint glasses. It’s more horses and more courses. Which is why we look at this, and see cellular IoT growing fast. You’d be surprised; our existing NB-IoT portfolio is pretty big to start with, but we are also seeing it move into new spaces.” 1 LOCAL-AREA 2 WIDE-AREA / DEEP COVERAGE Cellular LTE (4G) 1 Non-cell, local-area (Wi-Fi, BLE, Zigbee) Cellular LPWA (LTE-M) 2 Non-cellular LPWA (Sigfox, LoRa) Source: Ericsson KEY NB-IOT CHALLENGES – #10 | AIRTIME MANAGEMENT T he last (!) challenge for cellular IoT, so far as Sequans is concerned, is at the app-level, riding above the hardware and connectivity. The France-based firm is producing dual-mode LTE-M and NBIoT chips; it says operators missed the chance to distinguish between these technologies by selecting one or the other for deployment. Even as operators have started “doubling-down” lately on both, they are better served, says Sequans, with dual-mode hardware. Ideally, they should be able to switch between LTE-M and NB-IoT remotely, as well, suggests Jeremy Gosteau, in charge of IoT marketing at the firm. But there is a problem, as discussed (#5), remote SIM provisioning (RSP) using cellular IoT based eSIM / iSIM technology remains in development. The process currently requires a ‘bootstrap’ companion, typically 2G, to provision the unit in the first place, and remotely switching radio tech mid-stream is problematic. Nevertheless, the game for hardware providers is to come up with the software tools to enable visibility and control of the carrier technology for developers and enterprises. “The goal is to get something that makes it transparent for customers to use either of them – so the investment to use LTE-M or NBIoT is zero. They will just have their own application, to deploy on either technology, depending on where they want to deploy. It remains a challenge for the wider industry to make iSIM for NB-IoT a reality. But it falls to the hardware makers to bring transparency about the use of LTE-M or NB-IoT – to accelerate adoption of the technology.” He adds: “That is pretty much it in terms of challenges for cellular IoT.” 31 F E AT U R E R E P O R T $5-$10 (to be safe) for hardware (says Sequans) plus $15-odd (converted to dollars) for airtime (says Vodafone), plus fees for service analytics and management – equals something like $50 for the life of an NB-IoT product (says Nordic Semiconductor). MASSIVE ALREADY? Fifty bucks, 10 years, all-in; surely, that is ‘massive IoT’ written right there? Surely you could put a tracker on most things for that? “Yes; that’s the exciting part,” responds Nielsen. “Because the principle works that customers will pay $10 per year to track sheep, or dogs, or cars, or whatever. There is no problem justifying those kinds of costs.” So why the delay? Why the finger pointing? Why all the fuss? Skipper rejoins: “That is the question: why the fuss? Because everyone talks about ARPU, and all the rest of it – but we are in a different space now, trying to match the way we sell to the way customers want to buy – which is the way our customers sell to their customers. It is a different view.” Note, the use of first-person plural; is he speaking for the rest of the market, too? Are AT&T and Deutsche Telekom broadly in line? Is massive IoT about to come crashing? “Well, it’s not necessarily crashing, but it is aligning. This growth in roaming agreements is really the key to it.” Roaming always gets the credit, and roaming cracks the ‘scale barrier’; but the issues with interoperability, even between networking gear in single markets, and billing, and the attendant shift in understanding, have been more primal. Really, NB-IoT has only really worked at all until now because of the foresight of the likes of BICS (and 1NCE, Arkessa, iBASIS, and a few others). And really, billing, the last of these, is the only thing to have been completely sorted. So what’s the fuss? Do we really think ‘massive IoT’ is so easy, so suddenly? Of course we don’t. Because roaming, actually, is not finished, and interoperability remains. The philosophy might be sound, and a breakthrough in negotiations even, but the same gnarly technical issues abound – for a while longer, yet. 32 KEY NB-IOT DEPLOYMENTS – #10 | ASSET TRACKING, GERMANY Vodafone + Bayer (2020/21) T he big one, in ways – until the next one, of course; this deal between pharmaceutical firm Bayer and Vodafone is the first to exploit integrated SIM (iSIM) functionality, as well as some inter-market roaming. The working arrangement – also with Arm sister-company Kigen, chip manufacturer Altair Semiconductor (Sony) and module maker Murata – focuses on a printable NB-IoT based tracking label, priced at a couple of euros, for monitoring Bayer’s products through the supply chain. The smart label uses a proprietary version of iSIM, as a layout on printable silicon, along with a printable battery, microprocessor, antenna, modem, plus a couple of sensors. Vodafone provided the reference, Arm issued the blueprint, Altair designed the chip, and Murata designed the module. Bayer, which retains the IP rights and corralled the parties together, prints the tracker, like any other stick-on label, and slaps it on everything that goes out of its warehouses. The label connects to the cellular network when it is torn or cut on opening. The new solution can be configured for LTE-M, or even straight cellular; NB-IoT has been pre-selected in the Bayer design to reduce power consumption and extend battery life, which is put at 18-24 months,. Vodafone has a ‘bootstrap’ deal with Kigen to provide the initial connectivity on iSIM-based IoT devices, as well as fallback in case of outages. The unit’s reporting schedule has been optimised to conserve power. After tearing and provisioning, the label reports periodically – “once per day to tell you it’s around, and to report events after that”. The rota is kept to daily transmissions until the product moves out of Label – innovative, cheap, and (possibly?) green storage, and onto the road, where cellular positioning provides a fix on the cargo. An accelerometer and temperature sensor are engaged, also, in case the goods are damaged in transit, and to trigger a response in distribution. Reporting slows, again, on arrival, in storage at the other end. Usefully, an alert is issued when the package is opened, and the seal is broken, for a second time. This indicates the product has been put to use, and provides Bayer with additional data for inventory management and production scheduling. Bayer is using the label for tracking distribution of its agricultural products, notably chemical compounds or seed packs, initially. The label is green(ish), as well. The battery is alkaline, rather than lithium-based, and so “dissolvable”; the same for the other printed components, bar the chip, which can be easily retrieved. The group are also looking into using biodegradable plastics, made from fish scales, for the substrate. F E AT U R E R E P O R T KEY NB-IOT CHALLENGES – #11 | COMPETITOR ECOSYSTEM ‘NB-IoT could be stopped anytime’ – the cries from the opposite corner A nother round; one for the road? Why not? None of the other entries in this list mention the competitor landscape, which is noisy and wild, and quite ready to say the cellular industry has messed up with NB-IoT. Because, on one hand, the cellular IoT stats are starting to look decent: 175 operators have launched NBIoT (120) or LTE-M (55) networks so far, says GSA; 518 devices support one or the other, or both, including 432 NB-IoT Cat-NB-1 (362) and Cat-NB2 (71) devices, and 371 LTE-M (Cat-M) units. But on the other, a part of the crowd remains unmoved; their non-cellular tech is better in just about every way, they whoop and holler. Plus, they brandish exhibit A in the take-down; that NTT in Japan and DISH in the US have both bailed on NB-IoT. It is a sure sign that NB-IoT is doomed, they protest. Singapore-based IoT operator and development house UnaBiz is one of the more vocal protagonists in this sporting play, both in the stands and down in the dugout. Sigfox has its problems, it observes, but it is the best technology out of them all, remarks Henri Bong, the company’s founder and chief. “Sigfox has work to do to open the technology up, and find new ways to do business. But I can tell you we have designed with Sigfox, LoRa, NB-IoT, and LTE-M, and in terms of technology and TCO (total cost of ownership) – the most important thing for the customer – Sigfox is the lowest. It is the lowest as well in terms of energy consumption and natural autonomy; it is by far the most optimized, because the sensor doesn’t connect [before transmitting] – it sends the message without asking. The Sigfox protocol has been “Sigfox is better optimized and more affordable, but there will be cases that need more bandwidth and security, and will naturally migrate to cellular – to LTE-M and NBIo, if NB-IoT still exists. And I strongly believe NB-IoT could be stopped anytime soon.” Henri Bong, Co-Founder and Chief Executive, UnaBiz designed to be very efficient in terms of TCO.” BEST SOLUTION But is that enough? Besides the tech, is Sigfox a better solution? Bong responds, and twists the knife on NB-IoT: “I’m not really saying that. It is better optimized and more affordable, but there will be cases that need more bandwidth and security, which will naturally migrate towards cellular, and onto LTE-M and NB-IoT – if NB-IoT still exists. And I strongly believe NB-IoT could be stopped anytime soon. But, yes, people will go to LTE-M if they want more bandwidth.” It is the kind of thing that gets said a lot in the (new) Wild West of wide-area IoT. But Bong has earned the right to be heard; he knows the market, and the challenges 33 F E AT U R E R E P O R T in the telecoms market subscribe to; that LoRaWAN and Sigfox, whatever their claims, have been required to build infrastructure from scratch, and are way short of global coverage – in every corner of every market. and opportunities for each side. UnaBiz, established as a regional Sigfox operator, has a couple of supply contracts at the top-end of the current IoT scale; most notably, it worked with NICIGAS in Japan on a deal for 850,000 gas meters. Another, with Australian keg rental provider Konvoy, via local Sigfox operators Thinxtra, is worth around 20,000 connections, and set to scale larger. But its ambition is bigger; it has $25 million in its pocket, from a recent Series B round, to go with the $10 million it raised from KDDI and others in 2018, and wants to establish itself as a production house for the broader low-power wide-area (LPWA) market. DEVELOPER ECOSYSTEM The theory is interesting; the one thing the non-cellular LPWA brigade has in its favour is its noisy dynamism. A LoRaWAN shindig, for instance – all close collaboration, can-do optimism, coffee breath – strikes a very different tone to the well-heeled glamour shows put on by the telecoms set. Most of the mobile industry’s troubles – network roaming, technical interoperability, enterprise value, co-creation – have been grappled with at these sessions for years, and most of the major IoT innovations around efficiency and value have come from their delegates. This is the faceoff, ultimately, for all the coaches and fans in the NB-IoT end. The strength of the opposition is in its number, variety, flexibility, and initiative. Bong wants to bottle this scattered dynamism into a single brew, and issue it to his team in the break in order to unify and fortify its combative constituents against the slow-moving old galacticos across the way. “The problem is Sigfox and LoRa are fighting for nothing – for a pie that is getting smaller [in percentage terms] everyday, because of the cellular world,” he explains. “And suddenly these two camps have realized what is in front of them – all the cellular world, all of these giants of the industry, lined up against them, just a bunch of small disruptors promoting ultra low-cost IoT. So we hope – I hope – for some synergies. Because I can see them.” But we should consider the opposite view, which most commentators 34 DEVELOPER ECOSYSTEM Vision – UnaBiz chief Bong has presided over large-scale Sigfox deals with NICIGAS in Japan (below) and keg rental company Konvoy in Australia (bottom), and wants to unite the non-cellular side against the NB-IoT brigade Even their large-scale successes, hovering around the million-mark, are parochial affairs, compared to the kind of multi-market massive IoT contracts mobile operators are supposed to be lining up. What about NTT and DISH; were their decisions in 2020 to shut-down their NB-IoT networks and writeoff their NB-IoT investments just freak strategic reversals? Or is there something in the air? Adarsh Krishnan at ABI Research says not to put much store in them. He comments: “They were just business decisions – NB-IoT wasn’t doing much for NTT, and DISH wanted to focus on its 5G portfolio. But that is all. We haven’t seen it anywhere else; what we have seen, instead, is this emphasis on LTE-M as a longer-term play for enterprises to migrate away from 2G and 3G, and on NB-IoT as this massive IoT technology for all kinds of new use cases. That is really what we are seeing at the moment, even if there are a few stumbling blocks still.” What about the buzzy threat down the flanks from these jinky LoRaWAN and Sigfox wingers? Have the mobile operators left the ‘gate’ open, while they do up their shoelaces and pick fluff from their belly buttons? Is an upset on the cards? “No, no,” responds Jeremy Gosteau, from Sequans, rejoining the conversation to shut it down at last. “That won’t happen. We see customers who started with LoRa and Sigfox because they thought they would deliver; but many of these IoT applications require large geographical footprints, and so they have felt deceived.” He adds: “They are good technologies, no question. But they are really more suited to small areas, for campus installations and factory use cases – for a bunch of buildings, yes, but not for national and international projects. So there is no back door for non-cellular technology. And I don’t think the delay has really benefited them.” Powerful stuff, albeit from a partisan crowd. F E AT U R E R E P O R T ABOUT THE SPONSOR BICS is a global communications provider enabling international connectivity and mobility for people, applications, and things. Nordic Semiconductor is a fabless semiconductor company headquartered in Trondheim, Norway. The company specializes in ultra-low power performance wireless system on a chip and connectivity devices for the 2.4 GHz ISM band, with power consumption and cost being the main focus areas. Sequans is a leading developer and provider of 5G and 4G chips and modules for massive, broadband, and critical IoT. For 5G/4G massive IoT applications, Sequans provides a comprehensive product portfolio based on its Monarch LTE-M/NB-IoT and Calliope Cat 1 chip platforms, featuring industry leading low power consumption and global deployment capability. For 5G/4G broadband and critical IoT applications, Sequans offers a product portfolio based on its Cassiopeia Cat 4/Cat 6 4G and high-end Taurus 5G chip platforms, optimized for low-cost residential, enterprise, and industrial applications. 35 2 0 2 1 E D I TO R I A L C A L E N DA R O C TO B E R 2 0 2 1 Enterprise IoT Insights | Talking About Industrial Revolution | Conversations with industry about IoT in commercial real estate (CRE) RCR Wireless | Need guaranteed leads? Thought leadership? Incremental content? Marketing opportunities? 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