1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO/IEC 18000-61:2012 Information technology Radio frequency identification for item management Part 61: Parameters for air interface communications at 860 MHz to 960 MHz T
2、ype A BS ISO/IEC 18000-61:2012 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO/IEC 18000-61:2012. Together with BS ISO/IEC 18000-6:2013, BS ISO/IEC 18000-62:2012, BS ISO/IEC 18000-63:2012, and BS ISO/IEC 18000-64:2012, it supersedes BS ISO/IEC 18000-6:2010, w
3、hich is withdrawn. The UK participation in its preparation was entrusted to Technical Committee IST/34, Automatic identification and data capture techniques. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to includ
4、e all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013. ISBN 978 0 580 75345 9 ICS 35.040 Compliance with a British Standard cannot confer immunity from legal obligations. This B
5、ritish Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2013. Amendments issued since publication Date Text affectedBS ISO/IEC 18000-61:2012Reference number ISO/IEC 18000-61:2012(E) ISO/IEC 2012INTERNATIONAL STANDARD ISO/IEC 18000-61 First edit
6、ion 2012-07-15Information technology Radio frequency identification for item management Part 61: Parameters for air interface communications at 860 MHz to 960 MHz Type A Technologies de linformation Identification par radiofrquence (RFID) pour la gestion dobjets Partie 61: Paramtres de communication
7、s dune interface radio entre 860 MHz et 960 MHz, Type A BS ISO/IEC 18000-61:2012 ISO/IEC 18000-61:2012(E) COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or me
8、chanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.
9、iso.org Published in Switzerland ii ISO/IEC 2012 All rights reservedBS ISO/IEC 18000-61:2012 ISO/IEC 18000-61:2012(E) ISO/IEC 2012 All rights reserved iiiContents Page Foreword . v Introduction vi 1 Scope 1 2 Conformance . 2 2.1 Claiming conformance 2 2.2 Interrogator conformance and obligations . 2
10、 2.3 Tag conformance and obligations . 2 3 Normative references 3 4 Terms, definitions, symbols and abbreviated terms . 3 4.1 Terms and definitions . 3 4.2 Symbols 4 4.3 Abbreviated terms . 4 5 Overview . 5 5.1 Parameter tables 5 6 Type A . 9 6.1 Physical layer and data coding 9 6.1.1 Interrogator p
11、ower-up waveform . 9 6.1.2 Interrogator power-down 10 6.1.3 Frequency hopping carrier rise and fall times . 11 6.1.4 FM0 return link . 12 6.1.5 PIE (Pulse interval encoding) forward link . 15 6.2 Data elements 20 6.2.1 Unique identifier (Tag ID) 20 6.2.2 Sub-UID. 20 6.2.3 Application family identifi
12、er . 21 6.2.4 Data storage format identifier (DSFID) 21 6.3 Protocol elements . 22 6.3.1 Tag memory organisation 22 6.3.2 Support of battery assisted passive (BAP) tags 22 6.3.3 Block lock status . 22 6.3.4 Tag signature . 23 6.4 Protocol description 23 6.4.1 Protocol concept . 23 6.4.2 Command form
13、at . 24 6.4.3 Command flags 25 6.4.4 Round size . 26 6.4.5 Command code definition and structure 26 6.4.6 Command classes . 26 6.4.7 Command codes and CRC . 28 6.4.8 Response format . 31 6.4.9 Tag states . 33 6.4.10 Collision arbitration . 34 6.4.11 General explanation of the collision arbitration m
14、echanism 34 6.5 Timing specifications 36 6.5.1 Timing specifications general 36 6.5.2 Tag state storage . 36 6.5.3 Forward link to return link handover . 37 6.5.4 Return link to forward link handover . 37 6.5.5 Acknowledgement time window 37 BS ISO/IEC 18000-61:2012 ISO/IEC 18000-61:2012(E) iv ISO/I
15、EC 2012 All rights reserved6.6 Command format examples 39 6.7 Mandatory commands .39 6.7.1 Mandatory commands general .39 6.7.2 Next_slot .39 6.7.3 Standby_round .41 6.7.4 Reset_to_ready 42 6.7.5 Init_round_all .43 6.8 Optional commands 45 6.8.1 Optional commands general 45 6.8.2 Init_round .46 6.8.
16、3 Close_slot .47 6.8.4 New_round .48 6.8.5 Select (by SUID) .50 6.8.6 Read_blocks .51 6.8.7 Get_system_information .55 6.8.8 Begin_round .58 6.8.9 Write_single_block 60 6.8.10 Write_multiple_blocks .62 6.8.11 Lock_blocks .64 6.8.12 Write_AFI 66 6.8.13 Lock_AFI .68 6.8.14 Write_DSFID command .70 6.8.
17、15 Lock_DSFID 72 6.8.16 Get_blocks_lock_status 74 6.8.17 Init_Fast_Slots .76 6.9 Custom commands79 6.10 Proprietary commands 80 Annex A (informative) Calculation of 5-bit and 16-bit cyclic redundancy checks 81 A.1 Example CRC-5 encoder/decoder 81 A.2 Example CRC-16 encoder/decoder 82 Bibliography 83
18、 BS ISO/IEC 18000-61:2012 ISO/IEC 18000-61:2012(E) ISO/IEC 2012 All rights reserved vForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members o
19、f ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organiza
20、tions, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Di
21、rectives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of
22、the national bodies casting a vote. ISO/IEC 18000-61 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 31, Automatic identification and data capture techniques. ISO/IEC 18000 consists of the following parts, under the general title Information technolog
23、y Radio frequency identification for item management: Part 1: Reference architecture and definition of parameters to be standardized Part 2: Parameters for air interface communications below 135 kHz Part 3: Parameters for air interface communications at 13,56 MHz Part 4: Parameters for air interface
24、 communications at 2,45 GHz Part 6: Parameters for air interface communications at 860 MHz to 960 MHz General Part 61: Parameters for air interface communications at 860 MHz to 960 MHz Type A Part 62: Parameters for air interface communications at 860 MHz to 960 MHz Type B Part 63: Parameters for ai
25、r interface communications at 860 MHz to 960 MHz Type C Part 64: Parameters for air interface communications at 860 MHz to 960 MHz Type D Part 7: Parameters for active air interface communications at 433 MHz BS ISO/IEC 18000-61:2012 ISO/IEC 18000-61:2012(E) vi ISO/IEC 2012 All rights reservedIntrodu
26、ction This part of ISO/IEC 18000 describes a passive backscatter radio frequency identification (RFID) system that supports the following system capabilities: identification and communication with multiple tags in the field; selection of a subgroup of tags for identification or with which to communi
27、cate; reading from and writing to or rewriting data many times to individual tags; user-controlled permanently lockable memory; data integrity protection; Interrogator-to-tag communications link with error detection; tag-to-Interrogator communications link with error detection; support for both pass
28、ive back-scatter tags with or without batteries. This part of ISO/IEC 18000 specifies the physical and logical requirements for a passive-backscatter, RFID system operating in the 860 MHz to 960 MHz frequency range. The system comprises Interrogators, also known as readers, and tags, also known as l
29、abels. An Interrogator transmits information to a tag by modulating an RF signal in the 860 MHz to 960 MHz frequency range. The tag receives both information and operating energy from this RF signal. Passive tags are those which receive all of their operating energy from the Interrogators RF wavefor
30、m. If tags maintain a battery then they may operate using some passive principles; however, they do not necessarily get all their operating energy from the Interrogators RF waveform. An Interrogator receives information from a tag by transmitting a continuous-wave (CW) RF signal to the tag; the tag
31、responds by modulating the reflection coefficient of its antenna, thereby backscattering an information signal to the Interrogator. The system is Interrogator-Talks-First (ITF), meaning that a tag modulates its antenna reflection coefficient with an information signal only after being directed to do
32、 so by an Interrogator. Interrogators and tags are not required to talk simultaneously; rather, communications are half-duplex, meaning that Interrogators talk and tags listen, or vice versa. The International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC)
33、 draw attention to the fact that it is claimed that compliance with this document may involve the use of patents concerning radio frequency identification technology. ISO and IEC take no position concerning the evidence, validity and scope of these patent rights. The holders of these patent rights h
34、ave assured ISO and IEC that they are willing to negotiate licences under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statements of the holders of these patent rights are registered with ISO and IEC. BS ISO/IEC 18000-61:2012 ISO/I
35、EC 18000-61:2012(E) ISO/IEC 2012 All rights reserved viiInformation on the declared patents may be obtained from: Contact details Patent Holder Legal Name: Impinj, Inc. Contact for license application Name the tag responds by modulating the reflection coefficient of its antenna, thereby backscatteri
36、ng an information signal to the Interrogator. The system is ITF, meaning that a tag modulates its antenna reflection coefficient with an information signal only after being directed to do so by an Interrogator. In detail, this part of ISO/IEC 18000 contains Type A. Type A is ITF. Type A uses Pulse-I
37、nterval Encoding (PIE) in the forward link and an adaptive ALOHA collision-arbitration algorithm. 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 and commands, the co
38、llision arbitration scheme used to identify a specific tag in a multiple-tag environment. BS ISO/IEC 18000-61:2012 ISO/IEC 18000-61:2012(E) 2 ISO/IEC 2012 All rights reserved2 Conformance 2.1 Claiming conformance To claim conformance with this part of ISO/IEC 18000, an Interrogator or tag shall comp
39、ly with all relevant clauses of this part of ISO/IEC 18000, except those marked as “optional”. The Interrogator or tag shall also operate within local radio regulations, which can further restrict operation. Relevant conformance test methods are provided in ISO/IEC TR 18047-6. Conformance can also r
40、equire a license from the owner of any intellectual property utilized by said device. 2.2 Interrogator conformance and obligations To conform to this part of ISO/IEC 18000, an Interrogator shall support Type A implement the mandatory commands defined in this part of ISO/IEC 18000; modulate/transmit
41、and receive/demodulate a sufficient set of the electrical signals defined in the signalling layer of this part of ISO/IEC 18000 to communicate with conformant tags; and operate within the applicable local regulations. To conform to this part of ISO/IEC 18000, an Interrogator may implement any subset
42、 of the optional commands defined in this part of ISO/IEC 18000, and implement any proprietary and/or custom commands in conformance with this part of ISO/IEC 18000. To conform to this part of ISO/IEC 18000, the Interrogator shall not implement any command that conflicts with this part of ISO/IEC 18
43、000 or any of the parts 62, 63 and 64, or require the use of an optional, proprietary, or custom command to meet the requirements of this part of ISO/IEC 18000. 2.3 Tag conformance and obligations To conform to this part of ISO/IEC 18000, a tag shall: support Type A; operate over the frequency range
44、 from 860 MHz to 960 MHz, inclusive; implement the mandatory commands defined in this part of ISO/IEC 18000 for the supported types; modulate a backscatter signal only after receiving the requisite command from an Interrogator; and conform to local radio regulations. To conform to this part of ISO/IEC 18000, a tag may implement any subset of the optional commands defined in this part of ISO/IEC 18000; and implement any proprietary and/or custom commands as defined in 6.9 and 6.10.
