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UK Spectrum Policy Forum
Cluster 1 Meeting (Short range devices and Wi-Fi) – 30 September 2014

Murray Niman, Principal Engineer, BAE Systems
Current and Future Spectrum Needs for Short Range Devices

More information at: http://www.techuk.org/about/uk-spectrum-policy-forum

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Tech uk bae-systems-sr_ds

  1. 1. 30-Sep-2014 / GSE/140233© BAE Systems 2014 - All rights reserved 1 Current and Future Spectrum Needs for Short Range Devices - An Industrial Perspective Murray Niman, BAE Systems Advanced Technology Centre T: 01245-242617 E: murray.niman@baesystems.com
  2. 2. 30-Sep-2014 / GSE/140233© BAE Systems 2014 - All rights reserved 2 Introduction Focus: • The other Short Range Devices ! - not 2.4 / 5GHz Wi-Fi • The role/value of these other SRDs is often overlooked Premise: • SRDs deliver the greatest cost/benefit ratio of all spectrum? • SRDs are key enablers for M2M, IoT, Smart Grids, Transport etc • SRDs also drive advances in ad-hoc/mesh networks, security protocols, size/cost reduction etc… Disclaimers: Views expressed are those of the author. Third Party sources/images are acknowledged. BAE Systems accepts no liability for loss or damage suffered by others from errors or inaccuracies in such third party data
  3. 3. 30-Sep-2014 / GSE/140233© BAE Systems 2014 - All rights reserved 3 SRD Experience Work in CEPT (mainly SE24 / SRDMG) has included:- • UHF SRDs (inc for mesh, sensors and smart grids) • 2.3GHz Spectrum Release vs 2.4 GHz Wi-Fi/Bluetooth • 2.4GHz Medical (MBANS) • 4GHz Wireless Avionics (WAIC) • 5GHz Industrial SRDs (and now RLAN studies) • 60GHz Intelligent Transport (as well as 5.9GHz) • 77GHz Transport Radars • Now monitoring new 122GHz, and 200-600GHz (intra-chip) applications
  4. 4. 30-Sep-2014 / GSE/140233© BAE Systems 2014 - All rights reserved 4 Some typical SRD frequencies today • 433 MHz – popular in Europe but suffers from blocking by high power users and restricted bandwidth - not harmonised/preferred for new developments? • 863-868 MHz – extensively used in EU - but issues with new 4G LTE • 920 MHz – (ISM /RFID in USA etc) • 2.4 GHz – Bluetooth/Zigbee etc., but congested (and 2.3GHz LTE concerns) • 2.48-2.5 GHz – Medial apps (MBANS, implants etc) • 5 GHz – 25mW generic at 5725-5875 (with Car-Car ITS nearby) • UWB – Largely a market failure (apart from specialist sensors etc) • 60 GHz – High bandwidth, spectrally efficient, and now appearing • 77 GHz – radar sensors – a new tragedy of the commons? where next…?
  5. 5. 30-Sep-2014 / GSE/140233© BAE Systems 2014 - All rights reserved 5 UHF+ Expansion Original 863 MHz Band seeing enormous expansion from 7 to 20MHz BW:- • 862-863 863-870 870-876 915-921 (Red=new) Benefits: • Globally harmonised RFID (esp for freight, transport, aviation etc) • Planned spectrum for Smart Grids, M2M • Enhanced in-building coverage of UHF Wi-Fi (easier than White Space) Caveats: Will need better ad-hoc protocols, wireless security - and better receiver performance !
  6. 6. 30-Sep-2014 / GSE/140233© BAE Systems 2014 - All rights reserved 6 Case-1: 5GHz for Industry & Economic Growth • Wireless Industrial Automation (WIA) covers indoor car plants to outside oil refineries etc • These all need reliable sensor/comms networks – on a large scale • Accommodates 1000+ device networks • 5725-5825 MHz deliberately chosen to avoid Wi-Fi interference • Spectrum mitigations (inc TPC/DFS) are similar to the 25mW generic limit • Reference: CEPT ECC Report 206
  7. 7. 30-Sep-2014 / GSE/140233© BAE Systems 2014 - All rights reserved 7 Case-2: 77GHz – crowding up? • 24GHz wideband radar now discontinued • 76-77 GHz – Long Range Radar for Cruise Control • 77-81 GHz – Short Range Radar for Safer Braking But now new radar/sensor permutations:- • Fixed infrastructure - roads, tunnels, level crossings • Aircraft wing tips when taxiing • Helicopter low flying / landing inc roadside rescues • CEPT SE24 now has to carefully study/test each new permutation - as it has also had to do for 60GHz apps…
  8. 8. 30-Sep-2014 / GSE/140233© BAE Systems 2014 - All rights reserved 8 Spectrum Demands Existing bands increasingly require: • More selective receivers (now mandated by the new EU-RED) • Less of a laissez-faire approach by regulators • Band planning! – based on compatible power categories etc New spectrum options: • Unused Mobile bands (1900-1920 MHz and 2010-2025 MHz ) • Proposal soon to use these to expand DECT and SRDs (Draft CEPT Report 52) • 122 GHz (60GHz harmonic) for new ISM, hi-res sensors etc • 200-600 GHz range (Netherlands ITU WP1 proposal for non-UWB 100Gb/s Intrachip comms So… Is extra 5GHz Wi-Fi poor use, compared to Industry and Automotive?
  9. 9. 30-Sep-2014 / GSE/140233© BAE Systems 2014 - All rights reserved 9 Conclusions • Short Range Devices crop up everywhere • They provide substantial underlying economic and industrial value, as well as consumer benefit • Often provide critical or safety related apps (medical, transport) etc – despite lack of protected spectrum • Do they sometimes deserve priority over similar items such as RLANs/LTE ?

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