Information technology — Radio frequency identification for item management — Part 4: Parameters for air interface communications at 2,45 GHz (ISO/IEC 18000-4:2018)
This document defines the air interface for radio frequency identification (RFID) devices operatingin the 2,45 GHz industrial, scientific, and medical (ISM) band used in item management applications.This document provides a common technical specification for RFID devices that can be used byISO committees developing RFID application standards. This document is intended to allow forcompatibility and to encourage inter-operability of products for the growing RFID market in theinternational marketplace. This document defines the forward and return link parameters for technicalattributes including, but not limited to, operating frequency, operating channel accuracy, occupiedchannel bandwidth, maximum equivalent isotropically radiated power (EIRP), spurious emissions,modulation, duty cycle, data coding, bit rate, bit rate accuracy, bit transmission order, and whereappropriate, operating channels, frequency hop rate, hop sequence, spreading sequence, and chip rate.This document further defines the communications protocol used in the air interface.This document contains four modes. Mode 1 is an interrogator talks first with passive tag. Mode 2 is a tagtalks first with battery-assisted passive tag. Mode 3 is a globally available, ubiquitous network supporting(but not limited to) the logistics and transportation industry agnostic to any device, commercial orotherwise, requiring global availability. Mode 4 is a configurable data rate active RFID system. It providesthe functions of long range objects identification and environmental sense, and it is intended to realizethe low cost device and low power consumption, long range identification, fast and reliable tags access.The detailed technical differences between the modes are shown in the parameter tables.
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