ISO TR 20527-2022 pdf free download – Intelligent transport systems — Interoperability between interoperable fare management (IFM) systems and near field communication (NFC) mobile devices
4 Abbreviated terms
GCF Global Certification Forum
GSMA GSM Association
IFM interoperable fare management
JRE East Japan Railway Company
NFC near field communication
PT public transport
5 General considerations
5.1 Interoperability across different specifications
Globally, four different standards or specifications for the contactless interface cover most of the deployed public transport fare management systems:
a) ISO/IEC 14443 series;
b) ISO/IEC 18092;
c) EMV Contactless Interface Specification [9] ;
d) NFC Forum specifications (Analog, Digital, Activity) [2]–[6] .
NFC mobile devices are designed for the global market. Adaptations for single markets or technologies are typically not supported by the mobile industry. In order to take advantage of the existing global public transport fare management infrastructures, the NFC interface of mobile devices supports interoperability with all the previously mentioned contactless specifications.
5.2 Need for continuous, synchronized maintenance The standards or specifications mentioned in 5.1 are owned and maintained by individual bodies and working parties. In order to guarantee interoperability for current and future versions, the responsible bodies establish continuous working relationships that support alignment and synchronization before any changes are released. Liaisons which established harmonization of contactless specification releases are in place between the bodies that maintain the NFC Forum specifications, the ISO/IEC TS 24192 series, ISO/IEC 18092 and the EMV Contactless Interface Specification, as well as the related communication signal interfaces. The continuous working relationships between these specification bodies ensures future-proofed interoperability between PT devices and NFC mobile devices.
5.3 Relevance of certification Public transport fare management systems which employ a variety of devices from different suppliers use specific measures to ensure technical interoperability of the contactless interfaces. This applies all the more if NFC mobile devices, which are external to the interoperable fare management system manager, will be used as a customer medium or as access devices to customer media:
a) To achieve technical interoperability, the contactless interfaces of the relevant devices conform with the same specifications or alternatively with specifications which are harmonized.
b) Practical experience shows that conformity to the necessary specifications can be reliably achieved if the devices pass specific testing. In that situation, test cases for these specifications and a neutral, trustworthy body that monitors testing and certifies the conformity to the requested specification can be used as a basis to establish conformity successfully.
6 Description of the solution for interoperability
6.1 Approach The market-relevant standards and specifications for contactless proximity interfaces are implementing requirements from different markets or applications and are maintained by dedicated standardization or industry bodies. Deviations between particular parameters of these standards or different concepts for testing are justified by different device or application requirements. Current standards and specifications and the responsible bodies will keep their role in their markets. Therefore, it was recognized that a complete harmonization of these standards would not be practical. Instead, the approach focused on establishing technical interoperability between the relevant standards and specifications by harmonization of just those parameters that are necessary for technical interoperability. The specifications and test concepts for the contactless proximity presented in Table 1 were included in this process.ISO TR 20527 pdf download.