Alternating PICC and PCD support

Songdo, September 2011

Prepared by: ACS, Bundesdruckerei, Infineon

WG8 N 1836

TF2 N 705

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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Defines two devices

PCD Proximity Coupling Device

PICC Proximity Card or Object

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ISO/IEC 14443

PCD shall poll for Type A and Type B PICCs

PICC shall respond to Type A or Type B commands

PCD PICC

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 needs19.09.2011 Page 4

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ISO/IEC 14443 – Extended Proximity Device (EPD)

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

PCD Mode

PICC Mode

Scenarios Scenario 1: EPD in automatic mode alternation

Set date Page 6

t

A B

Start

tPICC1 tPCD tPCDtPICC2

tPICCi > tPCD

tPICCi ≠ tPICCj

PCD Mode

PICC Mode

A B

Check for external RF field

RF Off

RF On

Scenarios Scenario 2: EPD and PICC

Set date Page 7

t

A B

tPICC1 tPCD tPICC2

PCD Mode

PICC Mode

RF Off

RF On

PICC

t

PICC present

Cmd

Resp

Scenarios Scenario 3: EPD and PCD

Set date Page 8

t

tPICC1 tPICC2

PCD Mode

PICC Mode

RF Off

RF On

PCD

tRF Off

RF On

Resp

CmdA

Scenarios Scenario 4: EPD and EPD

Set date Page 9

t

tPICC1

PCD Mode

PICC Mode

RF Off

RF On

tRF Off

RF OnCmd

PCD Mode

PICC Mode

tPICC1

A B Cmd

Resp

A

tPICC2

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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