ISO/IEC 15962:2022

Overview - ISO/IEC 15962:2022 (RFID data encoding rules & logical memory)

ISO/IEC 15962:2022 defines the data protocol for RFID item management, focusing on how application commands (from the ISO/IEC 15961 series) are encoded, represented and delivered to a tag’s logical memory. The standard treats a Logical Memory as a software equivalent of the physical RFID tag memory addressed by an interrogator, and specifies rules to ensure interoperable encoding, compact storage and reliable transfer of commands and sensory data.

Key topics and technical requirements

• Encoded object identifiers Defines the encoded structure and presentation rules for object identifiers (OID), including mappings consistent with ISO/IEC 8824-1 and URN presentation in the application interface.
• Data compaction rules Specifies compaction and N‑bit encoding methods and the use of extensible bit vectors (EBV) to reduce on‑tag memory usage and over‑the‑air payload size.
• Precursor for encoding syntax Introduces an efficient precursor mechanism to signal extended or alternate syntax features without excessive overhead.
• Formatting and directory handling Defines formatting rules depending on whether directories are used in logical memory maps, and how multiple-record headers and packed objects are represented.
• Application command transfer to Tag Driver Details how application commands (read, write, modify, delete, inventory, lock/erase, etc.) are encoded and dispatched to the Tag Driver and processed by the Data Processor.
• Sensor and sensory information processes Specifies processes and transfer formats for sensory data, including indicators for simple sensors, full-function sensors, and battery-assisted tags.
• Air interface & system information elements Addresses air-interface support, system information elements (AFI, DSFID, physical block size, memory length indicators), data CRC indicators and extended syntax flag bytes.
• Conformance and protocol model Defines conformance classes (encoder/decoder/device) and a layered protocol model for flexible implementations.

Practical applications and who uses this standard

ISO/IEC 15962:2022 is targeted at:

• RFID tag and silicon designers implementing logical memory and on‑tag data formats.
• Middleware and firmware developers building Data Processors, Tag Drivers and application interfaces that encode/decode ISO/IEC 15961 commands.
• System integrators and solution providers for retail, logistics, asset tracking, healthcare and industrial IoT who require interoperable RFID data protocols.
• Standards bodies and test labs validating conformance and interoperability.

By standardizing encoding rules and logical memory functions, ISO/IEC 15962 improves interoperability, reduces over‑the‑air bandwidth and conserves tag memory - essential for scalable RFID deployments.

Related standards

• ISO/IEC 15961-1 - Application layer commands for RFID item management (directly referenced)
• ISO/IEC 8824-1 - Object Identifier (OID) structure referenced for OID presentation

Keywords: ISO/IEC 15962:2022, RFID, data encoding rules, logical memory functions, application commands, Tag Driver, object identifiers, data compaction, RFID protocol.