FINAL INTERNATIONAL ISO/IEC DRAFT STANDARD FDIS 24730-2 ISO/IEC JTC 1 Information technology Real-time Secretariat: ANSI locating systems (RTLS) 一 Voting begins on: 2012-03-19 Part 2: Voting terminates on: Direct Sequence Spread Spectrum 2012-05-19 (DSSS) 2,4 GHz air interface protocol Technologies de I'information - Systemes de localisation en temps réel (RTLS)- Partie 2: Protocole d'interface d'air a 2,4 GHz d'etalement de spectre a séquence directe (Dsss) RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY AREAWAREAND TO PROVIDESUPPORT- ING DOCUMENTATION. THEIREVALUATION Reference number BEING ACCEPTABLE FOR INDUSTRIAL,TECHNO ISO/IEC FDIS 24730-2:2012(E) LOGICAL, COMMERCIAL AND USER PURPOSES DRAFT INTERNATIONAL STANDARDS MAY ON IEC OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE MADE IN @ ISO/IEC 2012 ISO/IEC FDIS 24730-2:2012(E) Copyright notice This Iso document is a Draft International Standard and is copyright-protected by IsO. Except as permitted under the applicable laws of the user's country, neither this iso draft nor any extract from it may be any means, electronic, photocopying, recording or otherwise, without prior written permission being secured 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+41227490947 E-mail [email protected] Web www.iso.org Reproduction may be subject to royalty payments or a licensing agreement. Violators may be prosecuted. @ ISO/IEC 2012 - All rights reserved ensefromIHS Not for Resale ISO/IEC FDIS 24730-2:2012(E) Foreword Commission) form the specialized system for worldwide 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 collaborate 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 drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. 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 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 rights. ISO/IEC 24730-2 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology Subcommittee Sc 31, Automatic identification and data capture techniques. replaces the first edition of iSO/lEC 24730-2:2006, which has been technically revised. ISO/lEC 24730 consists of the following parts, under the general title Information technology- Real-time locating systems (RTLS): Part 1: Application program interface (APl) Part 2: Direct Sequence Spread Spectrum (Dsss) 2,4 GHz air interface 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 Spread 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 repetition frequency Ultra Wide Band (UWB) air interface Part 62: Hi