ISO/IEC 14443-2:2020/Cor 1:2021

Overview

ISO/IEC 14443-2:2020/Cor 1:2021 is a Technical Corrigendum to the international standard ISO/IEC 14443-2:2020, which governs cards and security devices for personal identification, specifically focusing on contactless proximity objects. This corrigendum provides important clarifications and technical updates related to the radio frequency (RF) power and signal interface for contactless communication between Proximity Coupling Devices (PCD) and Proximity Integrated Circuit Cards (PICC). It ensures precise encoding and transmission rules for binary information at various bit rates, enhancing interoperability and communication reliability in RFID and NFC applications.

Key Topics

• Radio Frequency Power and Signal Interface: The document revises the methods by which RF power and signal modulation are managed between PCD and PICC, crucial for efficient communication.
• Bit Rate Coding Enhancements: The corrigendum clarifies bit representation and coding schemes for different bit rates:
  • At 3fc/4 and 3fc/2 bit rates, binary data is transmitted in symbols composed of 3 bits, represented by 8 logic levels.
  • At fc and 2fc bit rates, data is transmitted using 4-bit symbols, represented by 16 logic levels.
• Symbol Construction: Detailed explanations and diagrams (Figures Cor.1 and Cor.2) illustrate how bytes are converted into symbols for transmission.
• Communication End Procedures: Defines the sequence of 8 null periods (NPs) at -180° phase shift generated by the PCD for communication termination, followed by an unmodulated RF carrier signal phase at 0°.
• Reorganization of Subclauses: The corrigendum replaces previous complex subclause 9.1.3.2 with a streamlined version referencing updated sections 8.1.3.3 and 8.1.3.4.

Applications

ISO/IEC 14443-2:2020/Cor 1:2021 is essential for industries and technologies involving:

• Contactless Identification Systems: Enables secure and reliable communication protocols for electronic passports, ID cards, and access control systems.
• Near Field Communication (NFC): Supports the development and standardization of NFC devices used in smartphones and payment systems.
• RFID Contactless Payment Cards: Ensures interoperability and robust data exchange between readers and contactless payment cards.
• Security Devices: Enhances signal integrity for devices used in personal authentication and secure data transactions.
• Public Transportation Ticketing: Provides clear guidelines for contactless smart card communication in fare collection systems.

By adopting these updates, manufacturers and integrators can improve device compatibility, reduce errors in data transmission, and meet international performance standards.

Related Standards

• ISO/IEC 14443-1: General characteristics of contactless proximity cards.
• ISO/IEC 14443-3: Initialization and anticollision protocols.
• ISO/IEC 14443-4: Transmission protocol for data exchange.
• ITU-T Recommendation H.222.0: Multimedia coding standards referenced by this corrigendum.
• ISO/IEC JTC 1 SC 29: Covers coding of audio, picture, multimedia, and hypermedia information relevant for integrated security devices.

Keywords: ISO/IEC 14443-2:2020 Corrigendum, contactless proximity cards, RFID signal interface, NFC communication standards, radio frequency power, bit rate coding, personal identification cards, PCD to PICC transmission, contactless smart card standards, secure contactless communication.