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ETSI update on Radio Frequency Identification

GRSC4(06)12. ETSI update on Radio Frequency Identification. ETSI. Background. ETSI standard EN302 208 published Sep 04 Key features: Mandatory “listen before talk” at a threshold level of –96 dBm Operation in 15 sub-bands of 200 kHz in the band 865.0 – 868.0 MHz

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ETSI update on Radio Frequency Identification

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  1. GRSC4(06)12 ETSI update on Radio Frequency Identification ETSI GSC: Standardization Advancing Global Communications

  2. Background • ETSI standard EN302 208 published Sep 04 • Key features: • Mandatory “listen before talk” at a threshold level of –96 dBm • Operation in 15 sub-bands of 200 kHz in the band 865.0 – 868.0 MHz • Transmit powers up to 2 W e.r.p. for maximum continuous transmission of 4 sec on any single sub-band GSC: Standardization Advancing Global Communications

  3. Code of Practice (ETSI TR 102 436) Purpose of document • Recommendations to installers and system integrators on good installation practice • Useful guide to end users on capabilities of the technology. • Supported by practical tests and installations GSC: Standardization Advancing Global Communications

  4. Main Challenges • Avoidance of unwanted tags • Minimising interference between adjacent lanes • Improving reading performance • Simultaneous operation of multiple interrogators that are in close proximity GSC: Standardization Advancing Global Communications

  5. Portals • Pre-fabricated for ease of installation • Lined with e.m. absorbent material to minimise reflections • Antennas with beamwidths of less than 30 degrees GSC: Standardization Advancing Global Communications

  6. Conclusions from Trial • Feasible to read 91% of tags at high speed and 95% at low speed with 3 portals operating simultaneously on adjacent sub-bands • The portals substantially reduced both the probability of reading unwanted tags and interference between adjacent lanes. • Tx times of 2s at portals should be satisfactory for many dock door applications. GSC: Standardization Advancing Global Communications

  7. Further work • Development of techniques that will permit many interrogators in close proximity to transmit simultaneously • Further improvements to reading performance • In response to EU initiative, consideration of future spectrum requirements to handle mass deployment of RFID at UHF GSC: Standardization Advancing Global Communications

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