WG 8 N 1836 TF 2 N 705

WG 8 N 1836 TF 2 N 705 Alternating PICC and PCD support Songdo, September 2011 Prepared by: ACS, Bundesdruckerei, Infineon

Rationale Ø WG 8 decided in April 2010 to let investigate the needs of mobile devices using the 14443 interface. Ø WG 8 Convener reported accordingly to the SC 17 Plenary in October 2010 and SC 17 approved Resolution 639/10: New WG 8 PWI into ‘Specifying the specific needs of mobile devices using the ISO/IEC 14443 methods‘ JTC 1/SC 17 approves the launch of a PWI assigned to WG 8, 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 WG 8 do not complete this within a year, they are to report back on progress to the next SC 17 plenary. Ø Due to that Resolution 639/10 WG 8 Members have been encouraged to work on the PWI and possibly to submit a Working Draft. Ø DIN has followed SC 17’s offer and presents such a Working Draft, proposed in TF 2 N 704 = WG 8 N 1835. 19. 09. 2011 Page 2

ISO/IEC 14443 Ø Defines two devices Ø PCD Proximity Coupling Device Ø PICC Proximity Card or Object PCD PICC Ø PCD shall poll for Type A and Type B PICCs Ø PICC shall respond to Type A or Type B commands 19. 09. 2011 Page 3

Market needs Ø Upcoming devices should support both, PCD and PICC roles of ISO/IEC 14443. Ø Market increasingly brings up e. ID applications, which run purely according ISO/IEC 14443. Specifically mobile devices should be able to communicate with e. ID related contactless objects. Ø Also finance and transport sectors are interested in letting customers use contactless bank cards, resp. tickets, via mobile devices like mobile phones. Ø Such devices should be able to communicate with: Ø PICCs (in PCD role) Ø PCDs (in PICC role) Ø another equivalent device (which one is in PICC or PCD role is to be initially negotiated) Ø => creation of a new device fulfilling above needs 19. 09. 2011 Page 4

ISO/IEC 14443 – Extended Proximity Device (EPD) PCD Mode PICC Mode Ø Extended Proximity Device supports PCD AND PICC Mode Ø Initial Mode is PICC Mode (either Type A or Type B) Ø Entering PCD Mode only if no external RF field is detected Ø In PCD Mode poll for Type A and Type B PICCs Ø Manual or automatic Mode selection 19. 09. 2011 Page 5

Scenarios Ø Scenario 1: EPD in automatic mode alternation PCD Mode PICC Mode t. PICC 1 RF On t. PCD A B t. PICC 2 t. PCD A B RF Off t Start Check for external RF field t. PICCi > t. PCD t. PICCi ≠ t. PICCj Set date Page 6

Scenarios Ø Scenario 2: EPD and PICC PCD Mode PICC Mode t. PICC 1 RF On t. PCD A B t. PICC 2 Cmd RF Off t PICC present Set date Resp t Page 7

Scenarios Ø Scenario 3: EPD and PCD Mode PCD PICC Mode t. PICC 1 t. PICC 2 RF On RF Off RF On Resp A t Cmd RF Off t Set date Page 8

Scenarios Ø Scenario 4: EPD and EPD PCD Mode PICC Mode t. PICC 1 A RF On RF Off Resp t. PICC 1 RF On t. PICC 2 A B Cmd t Cmd RF Off t Set date Page 9

Conclusion Ø Market needs increasingly require that both PCD and PICC Modes should be supported in one device. Ø in particular in the e. ID, financial and transport sectors Ø Actual status of ISO/IEC 14443 & Amendments reflect a maximum of quality, functionality and applicability: Ø All parts of ISO/IEC 14443 & 10373 -6 have been revised. Ø Amendments (soon published) for: Antenna Classes, EMD, Parameter Exchange, Very High Bit Rates. Ø 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. Ø Only minor adoptions in ISO/IEC 14443 are required to achieve that aim by the presented few further definitions proposed in the Working Draft (TF 2 N 704 = WG 8 N 1835), which lead to a new device category: the Extended Proximity Device (EPD). 19. 09. 2011 Page 10