HF UHF ISO180003 180006

1
HF / UHFISO18000-3 / 18000-6

• protocolsharmonization

2
Agenda

• Technical description overview
• Performances
• Write speed scenario
• Read speed scenario
• Conclusion

3
Technical description overview
4
Concepts

• Introduce a new HF protocol as ISO18000-3 Mode3
  based on
• Re-use the ISO18000-6C UHF protocol and memory
  mapping into the HF technology
• Why
• Harmonization of RFID solutions regardless the
  frequency technology
• Share same commands
• Share same memory mapping
• Share same protection
• Share same protocol capability
• Increase the data rate compared to existing
  ISO18000-3 proposals
• Re-use asynchronous link for reader to tag
  protocol
• Use synchronous link for tag to reader protocol

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ISO18000-3 AMD proposal technical description

• RF Layer Forward link
• Bit modulation
• Asynchronous protocol using ASK pulse modulation
  bit based on the Gen2 UHF Tari value
• Data 0 1 x Tari
• Data 1 (1.5 to 2) x Tari
• Tari 8µs Min to 25µs Max
• PW (0.525 x Tari) Max to (Max(0.265 x Tari,
  4µs)) Min
• ASK modulation index 10 Min to 30 Max

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ISO18000-3 AMD proposal technical description
7
ISO18000-3 AMD proposal technical description

• RF Layer Return link
• Bit modulation
• HF carrier synchronized Manchester bit coding
  using a single sub carrier or FM0.
• Logic 0 is sub-carrier pulses followed by
  un-modulated time.
• Logic 1 is un-modulated time followed by
  sub-carrier pulses.
• The parameter M allows selecting the number of
  sub-carrier pulses used to back-scatter the tag
  answer. The following table summarize the pulses
  number depending on the M value

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ISO18000-3 AMD proposal technical description
9
ISO18000-3 AMD proposal technical description

• Protocol
• Query command changes
• The Query command uses the same parameters as
  specified in the ISO18000-6C protocol. The
  functions of the following parameters are adapted
  to the HF tag answer
• DR carrier frequency
• DR 0 the sub-carrier 423KHz (Fc/32)
• DR 1 the sub-carrier 847KHz (Fc/16)

• M - data rate coding
• 00 FM0
• 01 1 sub-carrier pulses
• 10 2 sub-carrier pulses
• 11 4 sub-carrier pulses
• Session
• 00 session 0
• 01 session 1
• 10 session 2 (optional)
• 11 session 3 (optional)
• TRext
• 0 no pilot tone
• 1 pilot tine
• Query response
• 16 Bit RND CRC-5

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ISO18000-3 AMD proposal technical description

• Timing
• T1 75.5µs (1024/Fc) 32/Fc
• T2 151µs (2048/Fc) Min to 1184µs (16192/Fc) Max
• T3min Tsof_tag
• T4min T1 T3min

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PerformancesWrite speed
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Performances Programming speed

• State how many tags can be programmed per minute
  based on the following algorithm
• tag singulation (inventory sequence)
• write EPC code (96-bit), verification and lock,
  (assume no cover coding)
• read 64-bit Tag ID
• Target 80ms
• Wish list 33ms

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ISO18000-3 AMD proposals actual write speed

• Write speed was measured using existing
  ISO18000-6C tags and readers, but setting the
  HF proposals data rates
• These measurements were performed with Skyetek M9
  v1.1 with customized firmware, operating at 924
  MHz against ISO18000-6C tags
• Settings
• M 0 (FM0) at 425.75kHz (DR0 -gt 13560.00kHz /
  32)
• SOF 3 periods 7.08uS ( 3 TPri, TPri 1/LF
  1 / 425750 2.36uS )
• EOF 2 periods 4.72uS ( 2 TPri)
• NVM programming time 20ms

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Write detailed operations

• Singulation
• Write Block 1 (EPC code 1 /2)
• Verify
• Write Block 2 (EPC code 2 /2)
• Verify
• Lock (simulated by 2 word write to user memory)
• Read 64-bit Tag ID

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Singulation
16
Write Block 1 (EPC code 1 /2) verify
17
Write Block 2 (EPCcode 2 /2) verify
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Lock (simulated by 2 word write to user memory)
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Read 64-bit Tag ID
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Scope traces
Green - receiver
Yellow - transmitter
Memory programming time (3 x 20ms 60ms) -
block1 - block2 - lock -
21
Write detailed operations

• Singulation 3.19 ms
• Write Block 1 Verify 22.29 ms
• Write Block 2 Verify 22.29 ms
• Lock 20.83 ms
• Read 64-bit Tag ID 1.04 ms
• Total 69.44 ms

Note that accuracy is /- 2 ms due to resolution
error
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Considerations

• Pure programming time
• 20ms x 3 60ms
• Protocol time consumption (typical)
• 69.44ms 60ms 9.44ms
• Projected ISO18000-3 Mode 3 typical write
  operation
• With 12ms tPROG (block)
• 9.44 ms (3x12)ms 45.44ms ? allows to program
  up to 20 tags per second
• With 7ms tPROG (block)
• 9.44 ms (3x7)ms 30.44ms ? allows to program
  up to 30 tags per second
• Note Inter-Tag Time is estimated/recommended at
  10 ms (including tag power up and host-target
  communications)

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PerformancesRead speed
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Read speed calculation base

• The read speed was calculated based on actual UHF
  ISO18000-6C
• measurements (see the below test setup picture)
  using a FEIG reader
• Configuration
• Inventory of 100 Tags
• 96-bit EPC code
• Static
• 1,5m reading distance

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Read speed detailed operation

• All reader commands and Tag responses were
  captured in a data base
• Reader commands
• Query, QueryRep, QueryAdjust, ACK, NAK
• Tag response
• RN16, No_RN16, Coll_RN16, 96-bit EPC
• HF specific timings were incorporated in all
  recorded sequences

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Read speed results (tags per second)
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Read speed performance - conclusion

• 800 Tags per second maximum speed _at_ 100k/847k
  bps
• 530 tags per second read speed without
  shielding_at_ 42k/847k bps
• Enables to have at least a read rate of about 200
  tags per second on the existing Readers
  infrastructure with _at_ 42k/53k bps

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Memory mapping
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ISO18000-3 AMD proposals memory mapping

• Re-use ISO18000-6C memory mapping concept which
  separate
• System data into the reserved bank
• Item Identifier into the EPC bank
• Tag identifier into the TID bank
• Traceability data into the user bank

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Reader architecture perspective
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Conclusion
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Key benefits / high performance solution

• Increases HF protocols speed
• Enables high-speed tunnel readers
• Enables dual-frequency readers
• De-tuned tags capable (solution can be adapted to
  various End-Users configurations)
• High capacitance capable (full range of tag sizes)

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Key benefits / low cost solution

• Intrinsically low cost tag ICs
• cost-effective RF Front-End, same IC cost
  structure as ISO18000-6C
• Enables very low cost reader hardware
• No technology step required versus the existing
  HF and UHF infrastructures
• Low cost dual-frequency readers (common digital
  core)

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Key benefits / Industry commitment

• Time to market
• this is not a new standard for the solution
  providers
• Re-use UHF existing protocol
• Re-use HF bit modulation scheme of ISO18000-3
  Mode 1
• Various flavors will rapidly be available
• Will immediately be a widely supported standard
• Price competition
• Compatible with solution providers (coming from
  both the UHF and from the HF world) existing
  manufacturing processes

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Key benefits / Convergence

• ISO18000-3 and ISO18000-6 standards convergence
• Enables a frequency agnostic product
  classification
• Frequency agnostic End-Users requirements
• Pallet-level and Item-level solutions convergence
• Minimize industry efforts duplication

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Key benefits migration paths

• Clear migration path for the End-Users existing
  infrastructures
• HF infrastructures
• UHF infrastructures
• From Items to consumers
• This product architecture enables future
  interoperability with NFC, which will give
  consumers access to item information