ECRIT R. George Internet-Draft Q. Sun Intended status: Standards Track Huawei Technologies Expires: April 28, 2010 H. Schulzrinne Columbia University October 25, 2009 Civic Location Format Extension for Utility and Lamp Post Numbers draft-george-ecrit-lamp-post-01 Status of this Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on April 28, 2010. Copyright Notice Copyright (c) 2009 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 in effect on the date of publication of this document (http://trustee.ietf.org/license-info). Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Abstract This document describes an extension to civic location format and George, et al. Expires April 28, 2010 [Page 1] Internet-Draft Civic Location Format Extension October 2009 adds new element PN (pole number). PN carries pole number information which can identify a civic location. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology Used in This Document . . . . . . . . . . . . . . . 4 3. Additional Civic Address Type . . . . . . . . . . . . . . . . . 4 4. Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5. Security Considerations . . . . . . . . . . . . . . . . . . . . 5 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 5 6.1. CAtype Registry Update . . . . . . . . . . . . . . . . . . 5 7. References . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.1. Normative References . . . . . . . . . . . . . . . . . . . 5 7.2. Informative References . . . . . . . . . . . . . . . . . . 5 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 5 George, et al. Expires April 28, 2010 [Page 2] Internet-Draft Civic Location Format Extension October 2009 1. Introduction In many cities in China, utility and lamp posts carry a unique identifier, which we call a pole number in this document. In some countries, the label on the lamp post also carries the local emergency service number, such as "110", encouraging callers to use the pole number to identify their location. This method is initially provided and implemented in China by Shenzhen police department. (One suspects that this is particularly useful in cities where street naming and numbering systems make it difficult to accurately identify locations.) The pole number is also useful to report broken street lights. The major disadvantage is that callers would have to enter the pole number manually, although it may be possible in the future to simply point a camera phone at the number and have it recognize the number using pattern recognition. In this document, we define an extension of the civic address format [RFC XXXX] to carry such pole number information. The following figure is a diagram for this kind of lamp post number. "110" in the circle is emergency service number or PSAP. _.-----,===. | | (''''') | | `---' | | | | ,---------, | | ,---, |Emergency| | | /|,-.|----->| Number | | | / |110| '---------' | | / |`-'| |_|/ | 2 | ,---------, | | | 1 | |Lamp Post| | | | 2 |----->| Number | |-| | 1 | '---------' | |\ | 0 | | | \ | 1 | | | \ | 4 | | | \|,,,| _ | | ``-..|.| ``--.._ `'--.._ Lamp post with emergency number. George, et al. Expires April 28, 2010 [Page 3] Internet-Draft Civic Location Format Extension October 2009 2. Terminology Used in This Document The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. 3. Additional Civic Address Type [RFC4776] and [RFC5139] provides a full set of parameters that may be used to describe a civic location. Specifically, [RFC4776] lists several civic address types (CAtypes) that require support in the formal PIDF-LO definition that are not in [RFC4119]. The new element, PN (pole number), is used to support Lamp Post number in street addresses. The pole number can consist of any combination of letters and digits. Punctuation characters and embedded spaces are ignored; lower and upper case letters are treated as equivalent. +-----------+--------+-------------------------------+--------------+ | New Field | CAtype | Description | Example | +-----------+--------+-------------------------------+--------------+ | PN | 40 | lamp post number | A12101S | +-----------+--------+-------------------------------+--------------+ Table 1: New Civic PIDF-LO Type 4. Example CN GD Shenzhen Bantian Wuhe Bai Cao Yuan Front Gate Video Rental Store 518129 2121014 George, et al. Expires April 28, 2010 [Page 4] Internet-Draft Civic Location Format Extension October 2009 5. Security Considerations The security considerations of [RFC4119] is relevant to this document. 6. IANA Considerations 6.1. CAtype Registry Update This document updates the civic address type registry established by [RFC4776]. The "PIDF" column of the CAtypes table has been updated to include the types shown in the first column of Table 1. 7. References 7.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. 7.2. Informative References [RFC3693] Cuellar, J., Morris, J., Mulligan, D., Peterson, J., and J. Polk, "Geopriv Requirements", RFC 3693, February 2004. [RFC4119] Peterson, J., "A Presence-based GEOPRIV Location Object Format", RFC 4119, December 2005. [RFC4776] Schulzrinne, H., "Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration Information", RFC 4776, November 2006. [RFC5139] Thomson, M. and J. Winterbottom, "Revised Civic Location Format for Presence Information Data Format Location Object (PIDF-LO)", RFC 5139, February 2008. George, et al. Expires April 28, 2010 [Page 5] Internet-Draft Civic Location Format Extension October 2009 Authors' Addresses Robins George Huawei Technologies Huawei Base, Bantian, Longgang District Shenzhen, Guangdong 518129 P. R. China Phone: +86-755-28788314 Email: robinsg@huawei.com Qian Sun Huawei Technologies Huawei Base, Bantian, Longgang District Shenzhen, Guangdong 518129 P. R. China Phone: +86-755-28787351 Email: sunqian@huawei.com Henning Schulzrinne Columbia University Department of Computer Science 450 Computer Science Building, New York NY, 10027 US Phone: +1 212 939 7004 Email: hgs@cs.columbia.edu URI: http://www.cs.columbia.edu George, et al. Expires April 28, 2010 [Page 6]