23-11-0012-00-0000

IEEE 802.23 Emergency Services

DCN: 23-11-0012-00-0000

Title: 802 Location Report

Date Submitted: May 06, 2011

Presented at IEEE 802.23 session in Philadelphia, PA

Authors or Source(s):

 G. Scott Henderson, Research In Motion

Abstract: This contribution gives a review of location functionality in current 802.11 and 802.16 standards.

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IEEE 802.21 presentation release statementsThis document has been prepared to assist the IEEE 802.21 Working Group. It is

offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.

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The contributor is familiar with IEEE patent policy, as outlined in Section 6.3 of the IEEE-SA Standards Board Operations Manual <http://standards.ieee.org/guides/opman/sect6.html#6.3> and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/guide.html> 

IEEE 802.23 presentation release statementsThis document has been prepared to assist the IEEE 802.23 Working Group. It is

offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.

The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.23.

The contributor is familiar with IEEE patent policy, as stated in Section 6 of the IEEE-SA Standards Board bylaws <http://standards.ieee.org/guides/bylaws/sect6-7.html#6> and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/faq.pdf> 

IEEE 802.11 Location

• IEEE 802.11k, Radio Resource Measurement of Wireless LANs, Amendment 1 to IEEE 802.11-2007

• Introduces location as an Access Point (AP) function• ‘Location Configuration Information’ (LCI)• Based on IETF RFC 3825 for Geospatial location• Longitude, latitude, altitude and optionally azimuth• Local or remote location

• Bookmarks:• 7.3.2.21.9 LCI Request• 7.3.2.22.9 LCI Response• 11.10.8.6 Location Configuration Information Report

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IEEE 802.11 Location (2)

• IEEE 802.11y, 3650–3700 MHz Operation in USA, amendment 3 to IEEE 802.11-2007

• Special case usage to support coexistence, DFS

• Based on IETF 3825 Geospatial location

• Bookmarks:• 7.3.2.52 DSE Registered Location Element• 11.11.3 Registered STA Operation

• Location in a beacon frame

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IEEE 802.11 Location (3)

• IEEE 802.11v, IEEE 802.11 Wireless Network Management, amendment 8 to IEEE 802.11-2007

• Introduces Civic Address Format based on IETF RFC 4776

• Introduces ‘Location Services’

• Introduces ‘Location Identifier’ to external location server

• Bookmarks:• 5.2.12.10 Location Services• 7.3.2.21.9 LCI Request.

• Adds third party location• 7.3.2.22.9 LCI Response

• Adds third party location• Modifies Azimuth sub element

• 7.3.2.21.13 Location Civic Request• 7.3.2.22.12 Location Civic Response• 7.3.2.21.14 Location Identifier Request• 7.3.2.22.13 Location Identifier Response• 11.10.8.6 LCI Report

• Adds third party location

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IEEE 802.11 Location (4)

• IEEE 802.11u, Interworking with External Networks, amendment 9 to IEEE 802.11-2007

• Introduces ‘Access Network Query Protocol ‘ ANQP (using GAS) to provide hotspot and network information to a STA in a pre-associated state

• Bookmarks:• 5.9 Generic advertisement service (GAS) • 7.3.4 Access Network Query Protocol (ANQP) elements • 7.3.4.11AP Geospatial Location element • 7.3.4.12 AP Civic Location element • 7.3.4.13 AP Location Public Identifier URI element • 11.23.3.1GAS Protocol • 11.23.3.2 ANQP procedures • 11.23.6 Interworking procedures: emergency services

support 23-11-0012-00-0000

IEEE 802.11 Location (5)

• IEEE 802.11af TV White Spaces Operation, amendment 3 to IEEE Std 802.11-2011 (TBC)

• Introduced ‘Registered Location Query Protocol’ RLQP (using GAS) to provide TV White Apace Channel information to a STA in a pre-associated state

• Introduced ‘Registered Location Secure Server’

• Bookmarks:• 8.2.6.1.3 Device Location Information• 8.4.5 Registered Location Query Protocol• 10.14.6.2.2 Note Registered Location Secure Server

• Like IEEE 802.11y, this amendment uses location to support coexistence and operation in a licensed band and is not germane to emergency services.

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IEEE 802.11 Location Summary• IEEE 802.11k introduced Geospatial Location consistent with IETF

RFC3825

• IEEE 802.11y used location to support coexistence in a licensed band. This is not germane to emergency services requirements.

• IEEE 802.11v defines location as relevant to emergency services and introduces Civic Location consistent with IETF RFC 4776. Also defines location request/response for AP and STA, but only for post association.

• IEEE 802.11u extends 802.11v so that location can be supplied by ANQP prior to association. It also modifies 802.11v so that location is mandatory for an emergency call in any regulatory domain that requires location information.

• These mechanism provide location to the STA (EUT) which can then include it as a part of an emergency call. The format specified to forward it to a PSAP is IETF RFC 4119 PIDF-LO for geospatial and IETF RFC 5139 PIDF-LO for civic location.

Note: IEEE 802.11 amendments k, r, y, w, n, p, z, v, u were rolled up into 802.11REVmb/D8.0

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IEEE 802.16 Location

• IEEE 802.16-2009 Air Interface for Broadband Wireless Access Systems

• Location for emergency services is supported by the Location Based Services (LBS) function.

• Uplink Time Delay of Arrival (U-TDOA) ranging system to calculate MS location

• Bookmarks:• 6.3.2.3.59 Location Based Services (LBS-ADV) message• 11.21 LBS-ADV message encodings• 14.2.11 LBS Management• Annex K U-TDOA measurement

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IEEE 802.16 Location (2)

• IEEE 802.16j Multihop Relay Specification, amendment 1 to IEEE 802.16-2009

• For sharing base and relay station locations using WGS84

• Bookmarks:• 6.3.2.3.65 Location information request and response

messages• 11.27 Location information request and response

(MR_LOC-REQ/RSP) messages encodings

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IEEE 802.16 Location (3)

• IEEE 802.16m, Advanced Air Interface, amendment 3 to IEEE 802.16-2009

• WGS 84 datum, as defined in IETF RFC 3825

• Support for enhanced LBS for more accurate MS location

• Bookmarks:• 16.2.3.62 AAI-LBS-ADV Message/Table 756.—AAI-LBS-

ADV Message Field Description• 16.2.3.63 AAI-LBS-IND Message defines message for U-

TDOA• 16.2.18.4.2 Location update process• 16.8 Support for Location Based Services (LBS)

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IEEE 802.16 Summary

• IEEE 802.16-2009 Air Interface for Broadband Wireless Access Systems contained support for LBS and U-TDOA

• IEEE 802.16j Multihop Relay Specification introduced WGS84 for reporting BS and RS location

• IEEE 802.16m, Advanced Air Interface introduced IETF RFC 3825 geospatial format and support for enhanced LBS services

LBS and emergency services are further defined in two WiMAX Forum documents:

• WiMAX Forum® Network Architecture Protocols and Procedures for Location Based Services WMF-T33-110-R015v01 (2009-11-21)

• WiMAX Forum Network Architecture Emergency Services Support WMF-T33-102-R015v02 (2009-11-21)

Location is locally accounted as IETF RFC 3825 for geospatial and IETF RFC 4776 for Civic formats, and is forwarded to the PSAP as IETF RFC 4119 PIDF-LO for geospatial and IETF RFC 5139 PIDF-LO for civic location.

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References• IEEE 802.11-2007 Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications

12 June 2007

• IEEE 802.11k-2008 Radio Resource Measurement of Wireless LANs 12 June 2008

• IEEE 802.11u-2011 Interworking with External Networks 25 February 2011

• IEEE 802.11v-2011 Wireless Network Management 9 February 2011

• IEEE 802.11y-2008 3650–3700 MHz Operation in USA 6 November 2008

• IEEE 802.11af TV White Spaces Operation D1.01

• IEEE 802.16-2009 Air Interface for Broadband Wireless Access Systems 29 May 2009

• IEEE 802.16j- Multihop Relay Specification 12 June 2009

• IEEE 802.16m-2011 Advanced Air Interface

• IETF RFC 3825 Dynamic Host Configuration Protocol Option for Coordinate-based Location Configuration Information July 2004

• IETF RFC 4119 A Presence-based GEOPRIV Location Object Format December 2005

• IETF RFC 4776 Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration Information November 2006

• IETF RFC 5139 Revised Civic Location Format for Presence Information Data Format Location Object (PIDF-LO) February 2008

• MIL-STD-2401, World Geodetic System 1984 (WGS 84), http://www.wgs84.com/

• WiMAX Forum® Network Architecture Protocols and Procedures for Location Based Services WMF-T33-110-R015v01 (2009-11-21)

• WiMAX Forum Network Architecture Emergency Services Support WMF-T33-102-R015v02 (2009-11-21)23-11-0012-0000