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ISO/IEC 18000-64 1st Edition, July 15, 2012 Information technology - Radio frequency identification for item management - Part 64: Parameters for air interface communications at 860 MHz to 960 MHz Type D
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO/IEC 18000 defines the air interface for radio
frequency identification (RFID) devices operating in the 860 MHz to
960 MHz Industrial, Scientific, and Medical (ISM) band used in item
management applications. It provides a common technical
specification for RFID devices that can be used by ISO committees
developing RFID application standards. This part of ISO/IEC 18000
is intended to allow for compatibility and to encourage
inter-operability of products for the growing RFID market in the
international marketplace. It defines the forward and return link
parameters for technical attributes including, but not limited to,
operating frequency, operating channel accuracy, occupied channel
bandwidth, maximum effective isotropic radiated power (EIRP),
spurious emissions, modulation, duty cycle, data coding, bit rate,
bit rate accuracy, bit transmission order, and, where appropriate,
operating channels, frequency hop rate, hop sequence, spreading
sequence, and chip rate. It further defines the communications
protocol used in the air interface
This part of ISO/IEC 18000 specifies the physical and logical
requirements for a passive-backscatter, Tag Only Talks After
Listening (TOTAL) RFID system. The system comprises Interrogators,
also known as readers, and tags, also known as labels. An
Interrogator receives information from a tag by transmitting a
continuouswave (CW) RF signal to the tag; the tag responds by
modulating the reflection coefficient of its antenna, thereby
backscattering an information signal to the Interrogator. The
system is TOTAL, meaning that a tag modulates its antenna
reflection coefficient with an information signal upon entering an
Interrogator's field after first listening for Interrogator
modulation in order to determine if the system is ITF or not.
In detail, this part of ISO/IEC 18000 contains Type D.
Type D is TOTAL based on Pulse Position Encoding or Miller M=2
encoded subcarrier.
This part of ISO/IEC 18000 specifies
— physical interactions (the signalling layer of the
communication link) between Interrogators and tags,
— Interrogator and tag operating procedures,
— the collision arbitration scheme used to identify a specific
tag in a multiple-tag environment.