BS ISO IEC 24730-22-2012 Information technology Real-time locating systems (RTLS) Direct Sequence Spread Spectrum (DSSS) 2 4 GHz air interface protocol Transmitters opera.pdf
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1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO/IEC 24730-22:2012 Information technology - Real- time locating systems (RTLS) Part 22: Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol: T r a n s
2、m i t t e r s o p e r a t i n g w i t h m u l t i p l e spread codes and employing a QPSK data encoding and Walsh offset QPSK (WOQPSK) spreading schemeBS ISO/IEC 24730-22:2012 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO/IEC 24730-22:2012. Together with BS
3、 ISO/IEC 24730-2:2012 and BS ISO/ IEC 24730-21:2012, it supersedes BS ISO/IEC 24730-2:2006 which is withdrawn.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 commit
4、tee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012 ISBN 978 0 580 74408 2 ICS 35.0
5、40 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2012. Amendments issued since publication Date Text affectedBS ISO/IEC 24730-22:2012Reference number
6、ISO/IEC 24730-22:2012(E) ISO/IEC 2012INTERNATIONAL STANDARD ISO/IEC 24730-22 First edition 2012-06-01 Information technology Real-time locating systems (RTLS) Part 22: Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol: Transmitters operating with multiple spread codes and employi
7、ng a QPSK data encoding and Walsh offset QPSK (WOQPSK) spreading scheme Technologies de linformation Systmes de localisation en temps rel (RTLS) Partie 22: Protocole dinterface dair 2,4 GHz dtalement de spectre squence directe (DSSS): metteurs fonctionnant avec des codes dtalement multiples et utili
8、sant un codage de donnes QPSK et un schma BS ISO/IEC 24730-22:2012 ISO/IEC 24730-22:2012(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 mechanical, incl
9、uding 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.iso.org Publis
10、hed in Switzerland ii ISO/IEC 2012 All rights reservedBS ISO/IEC 24730-22:2012 ISO/IEC 24730-22:2012(E) ISO/IEC 2012 All rights reserved iiiContents Page Foreword iv Introduction . v 1 Scope 1 2 Normative references 1 3 Terms and definitions . 2 4 Symbols and abbreviated terms 4 5 Requirements . 4 5
11、.1 Frequency range 4 5.2 2,4 GHz spread spectrum air interface attributes 4 5.3 Compliance requirements 5 5.4 Manufacturer tag ID . 5 5.5 Physical layer parameters 5 6 Mandatory air interface protocol specification 7 6.1 General . 7 6.2 Physical layer specification . 9 Annex A (informative) Reader s
12、ynchronization by the RTLS reference tag 17 Bibliography 19 BS ISO/IEC 24730-22:2012 ISO/IEC 24730-22:2012(E) iv ISO/IEC 2012 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for w
13、orldwide standardization. National bodies that are members of 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 collaborat
14、e in fields of mutual interest. Other international organizations, 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
15、drafted in accordance with the rules given in the ISO/IEC Directives, 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 I
16、nternational Standard requires approval by at least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent right
17、s. ISO/IEC 24730-22 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 31, Automatic identification and data capture techniques. This first edition of ISO/IEC 24730-22, together with ISO/IEC 24730-2 and ISO/IEC 24730-21, cancels and replaces the first ed
18、ition of ISO/IEC 24730-2:2006, which has been technically revised. ISO/IEC 24730 consists of the following parts, under the general title Information technology Real-time locating systems (RTLS): Part 1: Application program interface (API) Part 2: Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air i
19、nterface protocol Part 5: Chirp spread spectrum (CSS) at 2,4 GHz air interface Part 21: Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol: Transmitters operating with a single spread code and employing a DBPSK data encoding and BPSK spreading scheme Part 22: Direct Sequence Sprea
20、d Spectrum (DSSS) 2,4 GHz air interface protocol: Transmitters operating with multiple spread codes and employing a QPSK data encoding and Walsh offset QPSK (WOQPSK) spreading scheme The following parts are under preparation: Part 6: Ultra Wide Band Air Interface protocol Part 61: Low rate pulse rep
21、etition frequency Ultra Wide Band (UWB) air interface Part 62: High rate pulse repetition frequency Ultra Wide Band (UWB) air interface BS ISO/IEC 24730-22:2012 ISO/IEC 24730-22:2012(E) ISO/IEC 2012 All rights reserved vIntroduction ISO/IEC 24730 defines a single application program interface (API)
22、for real-time locating systems (RTLs) for use in asset management and is intended to allow for compatibility and to encourage interoperability of products for the growing RTLS market. ISO/IEC 24730 also defines three air interface protocols, as follows: ISO/IEC 24730-2, based on a direct sequence sp
23、read spectrum (DSSS), ISO/IEC 24730-5, based on a chirp spread spectrum (CSS) technique, and ISO/IEC 24730-6 Ultra Wide Band Air Interface protocol. This part of ISO/IEC 24730, the direct sequence spread spectrum (DSSS) 2,4 GHz air interface protocol, establishes a technical standard for real-time l
24、ocating systems that operate at an internationally available 2,4 GHz frequency band and is intended to provide approximate location with frequent updates (for example, several times a minute). In order to be compliant with this part of ISO/IEC 24730 compliance with ISO/IEC 24730-1 is also required.
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