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Connecting 50 Billion Devices – the Wide-area Network Perspective
 

Connecting 50 Billion Devices – the Wide-area Network Perspective

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By John Haine, uBlox, 7 Nov 2013

By John Haine, uBlox, 7 Nov 2013
More presentations from Cambridge Wireless from this event at: http://www.cambridgewireless.co.uk/crmapp/EventResource.aspx?objid=43214

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    Connecting 50 Billion Devices – the Wide-area Network Perspective Connecting 50 Billion Devices – the Wide-area Network Perspective Presentation Transcript

    • locate, communicate, accelerate Connecting 50 Billion Devices – the Wide-area Network Perspective John Haine 7 Nov 2013
    • locate, communicate, accelerate Standards Connecting 50 Billion Devices – the Wide-area Network Perspective John Haine 7 Nov 2013
    • u-blox at a glance • Swiss high-tech company • • • • Founded in 1997 Listed on SIX since 2007 Fabless silicon & electronic product supplier R&D in Switzerland, Italy, Belgium, Finland, UK, Ireland, USA, Pakistan • Core technologies • • GPS, GLONASS,GALILEO, Compass and QZSS positioning (“GNSS”) 2G, 3G, 4G wireless communications • Products • • • • GPS/GNSS chips and modules Wireless modules Commercial, off-the-shelf products Positioning and wireless services • Market focus • • • • Slide 3 Industrial – durable solutions for professional electronics Automotive – robust, automotive grade products Consumer – mass market solutions Global sales © u-blox AG
    • IoT or M2M? Slide 4 © u-blox AG
    • The M2M universe – the supply-side view Slide 5 © u-blox AG
    • The M2M universe – the supply-side view …then there is “Dark Matter”! Slide 6 © u-blox AG
    • IoT is for everyone… Slide 7 © u-blox AG
    • Unpredictable growth as machines get smarter & connected Source: Thanki/ICSS 2013 Slide 8 © u-blox AG
    • WANTED: Ubiquitous, Pervasive, Reliable, Secure, Economical, & Scalable communications…. Slide 9 © u-blox AG
    • One network for the Internet of Things… Ubiquitous Low power • A utility, available everywhere Pervasive • Terminal can operate for “10 years on 2 AA cells” • Cover hard-to-reach locations Secure • Little or no “rf engineering” • Protect access and data transfer Reliable • Support Critical Infrastructure & Services • Data “just gets through” • Link- and application-layer ARQ Narrow-band, high latency • Generally small, infrequent messages • Occasional need for high-priority “alarm / action” messages • Firmware download Slide 10 © u-blox AG Economical • Low cost modem - disposable? • Very low cost service Scalable • To reach “50 billion devices”
    • Today’s wide-area network standards GSM 3G / HSPA • Well-established • Generally inferior coverage to GSM (but being rolled out at 900 MHz) • Relatively low tariffs (with the right carrier deal) • Low-cost modem modules (in volume) • Reasonably low power, can’t support 10-year target • Generally good coverage (for 850/900 MHz networks) • Reasonable link budget, but could give better penetration into locations such as manholes - needs another 20 dB! • Most wide-area M2M applications use GSM today • Operators want to turn off GSM networks! Slide 11 © u-blox AG • Supports broadband – but unnecessary for most applications • Virtually all chipsets support GSM too • Modem is significantly more expensive than GSM (NB high royalty costs) • Higher power consumption than GSM • Growing market share because of concerns over GSM longevity • But maybe 3G will be turned off first?
    • Today’s wide-area network standards LTE • Relatively early stage rollout • Bands <1GHz available for coverage • Designed mainly for mobile broadband – not needed for most IoT applications • Modem cost significantly greater than 3G • Higher power consumption than 3G • Coverage equivalent to 2G / 3G for the same bandwidth • “The future of cellular” – will be rolled out in all bands eventually to replace 2G & 3G, driven by explosive smartphone & tablet growth • Not a good fit to most “IoT” requirements Slide 12 © u-blox AG
    • The ideal network for the IoT • Operate below 1 GHz for best coverage • Use licensed spectrum for QoS (probably means cellular spectrum) • Coexist with existing network infrastructure • Trade-off bandwidth and latency for coverage and low power consumption • Standardised – economy of scale • Scalable to support billions of devices • Enable significantly lower terminal cost than GSM in equivalent volume • Significantly better link budget than GSM by ~20 dB • Enable low power terminals to meet the “10 year on 2 AA” target Slide 13 © u-blox AG
    • Cellular for the IoT? • New broadband M2M applications (e.g. interactive signage) BANDWIDTH LTE ≥CAT 3 ~100 Mbps HSPA EGPRS • Higher bandwidth / longevity • Today’s workhorse, growing legacy problem COST ???? VOLUME • No standardised solution
    • Evolution of LTE for “MTC”* in 3GPP • New UE category defined to fill the EGPRS niche BANDWIDTH LTE ≥CAT 3 ~100 Mbps “Category 0” UE type • Simplified protocols to reduce complexity, cost, power consumption • Target to have equivalent bit-rate & cost to EGPRS modem • Work item for Release 12 • Unlikely to fully meet IoT cost & performance needs COST ???? • Possibility of further evolution in Release 13? *MTC = Machine Type Communications
    • Slide 16 © u-blox AG
    • Timescale Slide 17 © u-blox AG
    • Timescale Slide 18 © u-blox AG
    • Proprietary specifications Sigfox Telensa • UHF ISM band • Based on well-proven Plextek 2way UNB air interface in UHF ISM band • Low power, “ultra narrow band” (UNB) • Mainly for short, infrequent uplink messages • Targeted at street lighting control • Limited capability for acknowledged transmission • Long range, low bandwidth • Widely deployed in UK • Very low cost modem claimed • Fully acknowledged, secure & reliable • Specification now in ETSI ISG • Very low cost terminals Slide 19 © u-blox AG
    • Proprietary (?) specifications Weightless • General purpose air interface designed for the IoT • Initial target TV white-space spectrum, now also looking at other bands (including licensed?) • Flexible bandwidth & latency • Enables very long battery life • Initial chipset launched by Neul Ltd, claim very low cost in volume • Open specification managed by industry SIG Slide 20 © u-blox AG
    • The IoT network “niche” • IoT needs a ubiquitous, pervasive, low-cost, low-energy, secure & reliable network to enable its growth • GSM is the de-facto choice today, but has significant shortcomings • Longevity / legacy • Coverage • Cost • UE energy consumption • 3GPP LTE standardisation for MTC is slow and today aims only to replace EGPRS • Proprietary / “industry-standard” specifications are emerging, but spectrum is an issue • Will the networks delay the development of the Internet of Things? Slide 21 © u-blox AG