WG8 N 1836 TF2 N 705

Alternating PICC and PCD support

Songdo, September 2011 Prepared by: ACS, Bundesdruckerei, Infineon

Rationale

 WG8 decided in April 2010 to let investigate the needs of mobile devices using the 14443 interface.

 WG8 Convener reported accordingly to the SC17 Plenary in October 2010 and SC17 approved Resolution 639/10:

New WG8 PWI into ‘Specifying the specific needs of mobile devices using the ISO/IEC 14443 methods‘ JTC1/SC17 approves the launch of a PWI assigned to WG8, into ‘Specifying the specific needs of mobile devices using the ISO/IEC 14443 methods’, with a view to developing an NP and accompanying working draft. If WG8 do not complete this within a year, they are to report back on progress to the next SC17 plenary.

 Due to that Resolution 639/10 WG8 Members have been encouraged to work on the PWI and possibly to submit a Working Draft.

 DIN has followed SC17’s offer and presents such a Working Draft, proposed in TF2 N 704 = WG8 N 1835.

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ISO/IEC 14443

 Defines two devices  PCD  PICC Proximity Coupling Device Proximity Card or Object PCD PICC  PCD shall poll for Type A and Type B PICCs  PICC shall respond to Type A or Type B commands 19.09.2011

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Market needs

 Upcoming devices should support both, PCD and PICC roles of ISO/IEC 14443.  Market increasingly brings up eID applications, which run purely according ISO/IEC 14443. Specifically mobile devices should be able to communicate with eID related contactless objects.

 Also finance and transport sectors are interested in letting customers use contactless bank cards, resp. tickets, via mobile devices like mobile phones.  Such devices should be able to communicate with:  PICCs (in PCD role)  PCDs (in PICC role)  another equivalent device (which one is in PICC or PCD role is to be initially negotiated)  => creation of a new device fulfilling above needs 19.09.2011

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ISO/IEC 14443 – Extended Proximity Device (EPD)

EPD

PCD Mode PICC Mode  Extended Proximity Device supports PCD AND PICC Mode  Initial Mode is PICC Mode (either Type A or Type B)  Entering PCD Mode only if no external RF field is detected  In PCD Mode poll for Type A and Type B PICCs  Manual or automatic Mode selection 19.09.2011

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Scenarios

 Scenario 1: EPD in automatic mode alternation

EPD

PCD Mode PICC Mode tPICC1 tPCD Start RF On RF Off

A B

Check for external RF field tPICC2 tPCD

A B tPICCi > tPCD tPICCi ≠ tPICCj

Set date t Page 6

Scenarios

 Scenario 2: EPD and PICC

EPD

PCD Mode PICC Mode tPICC1 RF On RF Off tPCD

A B Cmd

PICC present Resp PICC tPICC2 Set date t t Page 7

Scenarios

 Scenario 3: EPD and PCD

EPD

PCD Mode PICC Mode tPICC1 RF On RF Off tPICC2 RF On RF Off Set date

A Cmd

PCD Resp t t Page 8

Scenarios

 Scenario 4: EPD and EPD

EPD 1

PCD Mode PICC Mode tPICC1 RF On RF Off tPICC1 RF On RF Off

A B Cmd

Resp

Cmd EPD 2

PCD Mode PICC Mode tPICC2

A

Set date t t Page 9

Conclusion

 Market needs increasingly require that both PCD and PICC Modes should be supported in one device.

 in particular in the eID, financial and transport sectors  Actual status of ISO/IEC 14443 & Amendments reflect a maximum of quality, functionality and applicability:  All parts of ISO/IEC 14443 & 10373-6 have been revised.

 Amendments (soon published) for: Antenna Classes, EMD, Parameter Exchange, Very High Bit Rates.

 Time has come to make available the much attractive 14443 interface to those devices which determine our daily life at a high degree, i.e. mobile phones.  Only minor adoptions in ISO/IEC 14443 are required to achieve that aim by the presented few further definitions proposed in the Working Draft (TF2 N 704 = WG8 N 1835), which lead to a new device category: the Extended Proximity Device (EPD).

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