BS ISO/IEC 18000-4:2018定义了射频识别（RFID）设备运行的空中接口 在项目管理应用中使用的2,45 GHz工业、科学和医疗（ISM）频段。 本文档提供了可供用户使用的RFID设备的通用技术规范 ISO委员会正在制定RFID应用标准。本文件旨在考虑 兼容性，并鼓励产品的互操作性，以适应全球不断增长的RFID市场 国际市场。本文件定义了技术规范的正向和反向链接参数 属性，包括但不限于工作频率、工作信道精度、占用 信道带宽、最大等效各向同性辐射功率（EIRP）、杂散发射、， 调制、占空比、数据编码、比特率、比特率精度、比特传输顺序和位置 适当的操作信道、频率跳变率、跳变序列、扩频序列和码片速率。 本文件进一步定义了空中接口中使用的通信协议。交叉引用:ISO/IEC/IEEE 8802-15-4:2018IEEE 802.15.4:2006ISO/IEC 7816-6ISO/IEC 19762ISO/IEC 15963ISO/IEC/TR 18047-4ISO/IEC 646ISO 14816ISO 668ISO 17712ETSI EN 300 440-2ISO 6346ISO 18185ARIB STD-T81ARIB STD-1ISO 830ISO/IEC 15962ANSI MH10。8.4ISO 17363ISO/IEC 18000-62ISO/IEC 15961- 1 RIB STD-29ISO/IEC 29167（所有部分）ETSI EN 300 440-1购买时可用的所有现行修订版均包含在本文件的购买中。

BS ISO/IEC 18000-4:2018 defines the air interface for radio frequency identification (RFID) devices operating in 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 by ISO committees developing 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. This document defines the forward and return link parameters for technical attributes including, but not limited to, operating frequency, operating channel accuracy, occupied channel bandwidth, maximum equivalent isotropically 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. This document further defines the communications protocol used in the air interface.Cross References:ISO/IEC/IEEE 8802-15-4:2018IEEE 802.15.4:2006ISO/IEC 7816-6ISO/IEC 19762ISO/IEC 15963ISO/IEC/TR 18047-4ISO/IEC 646ISO 14816ISO 668ISO 17712ETSI EN 300 440-2ISO 6346ISO 18185ARIB STD-T81ARIB STD-1ISO 830ISO/IEC 15962ANSI MH10.8.4ISO 17363ISO/IEC 18000-62ISO/IEC 15961-1ARIB STD-29ISO/IEC 29167 (all parts)ETSI EN 300 440-1All current amendments available at time of purchase are included with the purchase of this document.