信息技术.物资管理用射频识别.第63部分:860 MHz至960 MHz C型空中接口通信参数

[中文适用范围]： 本文件定义了用于物品管理应用的射频识别 (RFID) 设备空中接口，该设备工作在 860 MHz 至 960 MHz 的工业、科学和医疗 (ISM) 频段。它提供了 RFID 设备的通用技术规范，可用于制定 RFID 应用标准。本文件旨在提高兼容性，并促进产品间的互操作性，以适应国际市场上日益增长的 RFID 市场。 [外文原描述]： This document 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 to develop RFID application standards. This document 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 document specifies the physical and logical requirements for a passive-backscatter, Interrogator-Talks-First (ITF) systems. The system comprises Interrogators, also known as readers, and tags, also known as labels. An Interrogator receives information from a tag by transmitting a continuous-wave (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 ITF, i.e. a tag modulates its antenna reflection coefficient with an information signal only after being directed to do so by an Interrogator. This document specifies — physical interactions (the signalling layer of the communication link) between Interrogators and tags; — logical operating procedures and commands between Interrogators and Tags; — the collision arbitration scheme used to identify a specific tag in a multiple-tag environment; — optional security commands that allow the use of crypto suites of ISO/IEC 29167.