EPC® Radio-Frequency Identity Generation-2 UHF RFID Standard

This standard defines the physical and logical requirements for a passive-backscatter, Interrogator-talks-first (ITF), radio-frequency identification (RFID) system operating in the 860 MHz – 930 MHz frequency range. Such a system requires interrogators (also known as readers) and Tags (also known as labels or transponders).

This protocol specifies the physical interactions between interrogators and Tags, along with the logical operating procedures and commands between interrogators and Tags.

Main sections:

· Scope

· Conformance

· Normative references

· Terms and definitions

· Symbols, abbreviated terms, and notation

· Protocol requirements

· Battery Assisted Passive (BAP) Interrogator-Talks-First systems (optional)

· Sensor support (optional)

· Annex: (normative) Extensible bit vectors

· Annex: (normative) State-transition tables

· Annex: (normative) Command-response tables

· Annex: (informative) Example slot-count (Q) selection algorithm

· Annex: (informative) Example Tag inventory and access

· Annex: (informative) Calculation of 5-bit and 16-bit cyclic redundancy checks

· Annex: (informative) Multiple- and dense-Interrogator channelised signalling

· Annex: (informative) Interrogator-to-Tag link modulation

· Annex: (normative) Error codes

· Annex: (normative) Slot counter

· Annex: (informative) Example data-flow exchange

· Annex: (informative) Optional tag features

· Annex: (informative) Cryptographic-suite checklist

· Annex: (normative) Application conformance