RFID Update Presentation to RFID Workshop John Falck Chairman ETSI-ERM-TG34.
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RFID Update Presentation to RFID Workshop John Falck Chairman ETSI-ERM- TG34
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Transcript of RFID Update Presentation to RFID Workshop John Falck Chairman ETSI-ERM-TG34.
RFID Update
Presentation to RFID Workshop
John Falck
Chairman ETSI-ERM-TG34
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Overview
Inductive <135 kHz - access, animals
HF 13.56 MHz – mass transportation
433 MHz – long range battery tags
UHF 865 to 868 MHz – logistics
uWave 2.45 GHz – industrial
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Standards
With the exception of UHF all other bands operate under generic standards: EN 300 330 En 300 220 EN 300 440
In recent years UHF band has attracted most interest. ERM_TG34 formed to handle special needs of RFID at UHF
Presentation will focus on UHF band
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EN 302 208
Work started in 2002
Initial input suggested < 30 interrogators per site
Using available technology standard proposed 10 channels at 2 W e.r.p.
Interoperability achieved using LBT and AFA
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Market reaction
Publication of standard raised interest of major retailers in RFID
Their requirements very different from original market input (i.e. 200 interrogators per site operating simultaneously)
Radical re-think necessary
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Resolution
Manufacturers and end users worked together within TG34 to develop a satisfactory solution
Series of tests performed culminating in a major trial
Proven techniques incorporated in a new version of the standard to be published in February 2008
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ETSI tests at DCTests at Varena
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Main changes to EN 302 208
Specification of 4-channel plan
Removal of mandatory requirement for LBT
No restriction on antenna beamwidth below 500 mW e.r.p.
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4 channel plan
Interrogatorsignal
Tagresponse
1 2 3 4 115 6 7 8 9 10 1412 1513 Channels
865 MHz 868 MHz
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Features of revised standard
Permits simultaneous operation of many co-located interrogators
Improves tag reading performance
Permits use of inductive antennas for item level tagging
Reduces costs and complexity
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General benefits
No new hardware design necessary – implemented by firmware upgrade
Very spectrum efficient – attractive where only limited spectrum available
Sharing possible with other devices e.g. SRDs
Considerable interest from other regions – particularly Far East
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Code of Practice
ObjectivesComplements EN 302 208Guidance to installers and system
integrators Inform end users
Revised version of TR 102 436 to be published in first quarter of 2008
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Item level tagging
European trial has started
Further refinement in progress
Verify commercial benefits
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Item level trial
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ETSI Plugtests
Further Plugtests planned for June 2008
Will focus on interoperabilityTags supplied by different vendors Interrogators supplied by different vendors
Will validate interoperability In laboratory environmentPassing through portalsOn conveyorsAt item level
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Additional spectrum
Need to plan now for spectrum requirements for next 15 years
Considerations:Global harmonisationLarge number of different applicationsNeed for higher data rates and greater range Increased functionality (e.g. sensor tags)
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Proposals
Propose two categoriesBase level systemsHigh performance systems
Main growth in base level systems
Need to consider global harmonisation – particularly for logistics
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Candidate new spectrum
840 MHz 860 MHz 880 MHz 900 MHz 920 MHz 940 MHz 960 MHz
Candidate new spectrum
Europe
Americas
Japan
Australia, SA, Korea, Others
China
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870 – 876 MHz
SRDs 25 mW, DC of x%or LBT with AFA
2W RFID in200 kHz channels
870 871 873 874872
872.9 873.5
876 MHz875
874.1 874.7
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915 – 921 MHz
in 400 kHzchannels
4 W e.r.p.
915MHz fc=916MHz
fc=917.33MHz
fc=918.67MHz
fc=920MHz
921MHz
1.33MHz 1.33MHz 1.33MHz
Low powertag response
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Next steps
Obtain agreement to SRDoc within ETSI
Secure favourable outcome to compatibility study within ECC
Revise standard to include additional frequency bands
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Summary
New version of standard will meet market needs in Europe for next 5 years
Over next 15 years additional spectrum required to;accommodate expansion of RFIDprovide additional functionality
For global applications important to align frequencies with other Regions
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Thank you for your attention
Contact details:-
John Falck
Tel: +44 (0)1353 665309
e-mail: [email protected]
