Dynamic Extensions to the Presence Information Data Format Location Object (PIDF-LO)
RFC 5962
Document | Type |
RFC - Proposed Standard
(September 2010; No errata)
Was draft-singh-geopriv-pidf-lo-dynamic (individual in rai area)
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Authors | Martin Thomson , Vishal Singh , Hannes Tschofenig , Henning Schulzrinne | ||
Last updated | 2015-10-14 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 5962 (Proposed Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Robert Sparks | ||
Send notices to | rbarnes@bbn.com |
Internet Engineering Task Force (IETF) H. Schulzrinne Request for Comments: 5962 V. Singh Category: Standards Track Columbia University ISSN: 2070-1721 H. Tschofenig Nokia Siemens Networks M. Thomson Andrew Corporation September 2010 Dynamic Extensions to the Presence Information Data Format Location Object (PIDF-LO) Abstract The Geopriv Location Object introduced by the Presence Information Data Format - Location Object (PIDF-LO), RFC 4119, defines a basic XML format for carrying geographical information of a presentity. This document defines PIDF-LO extensions to convey information about moving objects. Elements are defined that enable expression of spatial orientation, speed, and heading of the presentity. Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc5962. Schulzrinne, et al. Standards Track [Page 1] RFC 5962 Dynamic Extensions to PIDF-LO September 2010 Copyright Notice Copyright (c) 2010 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction ....................................................2 2. Terminology .....................................................3 3. Dynamic Elements ................................................3 3.1. Angular Measures and Coordinate Reference Systems ..........5 4. Dynamic Feature XML Schema ......................................6 5. Security Considerations .........................................7 6. IANA Considerations .............................................7 6.1. Dynamic Feature Extensions Namespace Registration ..........7 6.2. Dynamic Feature Extensions Schema Registration .............8 7. Acknowledgements ................................................8 8. References ......................................................9 8.1. Normative References .......................................9 8.2. Informative References .....................................9 Appendix A. Earth Centered, Earth Fixed Direction Vectors ........10 1. Introduction The Presence Information Data Format - Location Object (PIDF-LO) (see RFC 4119 [RFC4119]) provides geographical location of a presentity. This corresponds to a physical location at a given instance of time. RFC 5491 [RFC5491] extends PIDF-LO and provides additional guidelines to implementers. This document extends PIDF-LO to convey spatial orientation, speed, and heading of a presentity. The addition of rate-of-change information to the PIDF-LO enables a range of use cases. These use cases either use dynamic information directly or use that information Schulzrinne, et al. Standards Track [Page 2] RFC 5962 Dynamic Extensions to PIDF-LO September 2010 for smoother tracking of a position over time. For example, an application that continuously tracks a presentity could use velocity information to extrapolate positions in between times that location information is measured. A shipping company could directly use speed to monitor delivery truck speed to ensure speed limits are observed. 2. Terminology In this document, the key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" are to be interpreted as described in RFC 2119 [RFC2119]. This document uses the term "presentity", as defined in RFC 2778Show full document text