SIST-TS ETSI/TS 102 164 V1.1.1:2005

Services and Protocols for Advanced Networks (SPAN); Emergency Location Protocols

This standard specifies the protocol needed for mobile operators and Emergency number Service operators based on Location Interoperabilioty Forum (LIF) specification.

Storitve in protokoli za napredna omrežja (SPAN) – Lokacijski protokoli v nuji

General Information

• Status: Published
• Publication Date: 31-Dec-2004
• ICS: 33.040.40 - Data communication networks
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2005
• Due Date: 01-Jan-2005
• Completion Date: 01-Jan-2005
• Ref Project: ETSI TS 102 164 V1.1.1 (2003-04) - Services and Protocols for Advanced Networks (SPAN); Emergency Location Protocols

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TS ETSI/TS 102 164 V1.1.1:2005
01-januar-2005
Storitve in protokoli za napredna omrežja (SPAN) – Lokacijski protokoli v nuji
Services and Protocols for Advanced Networks (SPAN); Emergency Location Protocols
Ta slovenski standard je istoveten z: ETSI TS 102 164 V1.1.1 (2003-04)
ICS:
33.040.40 Podatkovna komunikacijska Data communication
omrežja networks
SIST-TS ETSI/TS 102 164 V1.1.1:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS ETSI/TS 102 164 V1.1.1:2005

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SIST-TS ETSI/TS 102 164 V1.1.1:2005

ETSI TS 102 164 V1.1.1 (2003-04)
Technical Specification


Service and Protocols for Advanced Networks (SPAN);
Emergency Location Protocols

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 2 ETSI TS 102 164 V1.1.1 (2003-04)



Reference
DTS/SPAN-130322
Keywords
location, mobile, protocol
ETSI
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ETSI

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SIST-TS ETSI/TS 102 164 V1.1.1:2005
 3 ETSI TS 102 164 V1.1.1 (2003-04)
Contents
Intellectual Property Rights.4
Foreword.4
1 Scope.5
2 References.5
3 Abbreviations.5
4 MLP Lite 112 .5
5 Name and address data.6
6 Emergency Location Immediate service (LIF defined service) .7
6.1 Emergency Location Immediate request (subset of LIF defined request).8
6.2 Emergency Location Immediate answer - Valid response (subset of LIF defined response).8
7 Emergency Location Reporting service (LIF defined service) .10
7.1 Emergency Location report (subset of LIF defined request).11
8 Emergency Location - Error responses (subset of LIF defined response).13
8.1 Generic error response.13
8.2 Position error response .13
9 Result codes (LIF defined).13
10 Proposed additional functionality - Position fix type.15
10.1 Background.15
10.2 Issue.15
10.3 Proposed solution.15
10.4 Proposed action.16
11 Proposed additional functionality - HTTP 1.1 pipelining .16
11.1 Background.16
11.2 Issue.16
11.3 Proposed solution.17
11.3.1 HTTP 1.1 non conformance.17
11.3.2 Utilize a transaction ID .17
11.4 Proposed action.17
12 European petroleum survey group .17
12.1 Background.17
12.2 EPSG geodetic parameters .17
12.3 EPSG guidance notes.18
12.4 EPSG Geodesy Parameters V 6.3.18
Annex A (informative): Bibliography.19
History .20

ETSI

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SIST-TS ETSI/TS 102 164 V1.1.1:2005
 4 ETSI TS 102 164 V1.1.1 (2003-04)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
All published ETSI deliverables shall include information which directs the reader to the above source of information.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Services and Protocols for
Advanced Networks (SPAN).
ETSI

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 5 ETSI TS 102 164 V1.1.1 (2003-04)
1 Scope
The present document specifies the protocol that is used by the Local Emergency Operator to obtain the location
information that is registered on the Mobile Operator Location Server.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
[1] EPSG geodesy parameters Version 6.3, February 2002.
NOTE: http://www.epsg.org/.
3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
APSG Americas Petroleum Survey Group
EMTEL EMergency TELecommunication services
EPSG European Petroleum Survey Group
ISO International Standards Organization
LCS Local Contact Service
LIF Location Interoperability Forum
MLP Mobile Location Protocol
POSC Petrotechnical Open Software Corporation
QOP Quality Of Position
4 MLP Lite 112
A subset of the Location Interoperability Forum (LIF) Mobile Location Protocol (MLP) Version 3.0.0 (6 June 2002)
sufficient for mobile operators and emergency number service operators to implement an initial service where the
emergency number operator can request the location of a phone from the mobile operator and receive either a valid
response or an error response in reply.
ETSI

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 6 ETSI TS 102 164 V1.1.1 (2003-04)


request (MLP)
Emergency
Wireless
Operator
Netw ork
application
response (MLP)
Mobile Operator
Loc ation Server

It is anticipated that after initial implementation, some Mobile Operators will implement the functionality to initiate a
position fix on the origination of a call to 112 by the user and push the resulting location information to the Emergency
Operator


Emergency
Wireless
Operator
Netw ork
application
report (MLP)
Mobile Operator
Loc ation Server

Please see full LIF specification at http://www.openmobilealliance.org/tech/lif for further details and information.
Note that in this implementation of the LIF MLP protocol:
• ALL compulsory LIF elements are compulsory.
• Some optional LIF elements are compulsory.
5 Name and address data
The LIF MLP standard does not include Name and Address type fields but does include an extension mechanism to
allow additional elements to be added.
A Name and Address extension is included in this specification to enable fixed line operators to adopt the same protocol
as mobile operators to provide location information to emergency services:
• Potential data sources to populate these fields include:
- installation address for fixed lines phones;
- addresses "reverse geocoded" from latitude, longitude position of mobile handset;
- location of pico cells within buildings.
Note that the referenced extension (and therefore the structure and elements within this extension) could be different for
different countries, different operators and different emergency services.
I.e. if required the name and address fields and field formats could be defined differently to suit different countries,
different operators or different emergency services.
ETSI

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 7 ETSI TS 102 164 V1.1.1 (2003-04)
6 Emergency Location Immediate service (LIF defined
service)
The emergency location immediate service is used by the Emergency Operator to retrieve the position of a mobile
subscriber that has initiated an emergency call from the Mobile Operator.
The response to the service is required immediately.
The service consists of the following messages:
• Emergency Location Immediate Request.
• Emergency Location Immediate Answer.
The following message flow encapsulates this service:
Emergency Mobile
Operator Operator
LCS Client Location Server
emergency location immediate request
emergency location immediate answer

Request and Answer implemented as:
Emergency Mobile
Operator Operator
Location Server
LCS Client
HTTP POST (Service Initiation(hdr, body))
HTTP Response (Service Result(hdr?, body))

ETSI

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 8 ETSI TS 102 164 V1.1.1 (2003-04)
6.1 Emergency Location Immediate request (subset of LIF
defined request)
XML Code Notes

"MLP_SVC_INIT_300.DTD">
Service initiation for MLP Version 3.0.0
   Header for MLP Version 3.0.0
     Who is requesting this location fix
      aaaa….a
Emergency operator registered user name for login
      aaaa…a> Emergency operator password for login
    
  
  > Emergency Location Immediate Request for MLP
Version 3.0.0
     Identifier of device to be located
       ccpppppppppp Identifier is a MSISDN formatted as Country Code + Phone
Number (GSM/3GPP should conform to TS 123 003)
    
  

6.2 Emergency Location Immediate answer - Valid response
(subset of LIF defined response)
XML Code Notes

"MLP_SVC_RESULT_300.DTD" [
   DTD defining the National Regulatory Organization
    Name and Address extension
'http://www.oftel.gov.uk/UK999_MLP_address_extension.dtd'>
(note this is an example of a dtd)
   %extension;
  ]>
Service result for MLP Version 3.0.0
   Emergency Location Immediate Answer for MLP
Version 3.0.0
     Name and address data elements as defined by
the referenced DTD above
      aaaaa…a Registered Customer Name
      aaaaa.a Address of current location
      aaaaa.a Notes -
      aaaaa.a All elements could be defined as optional
      etc Elements could be defined differently
      etc> This is only an example of how to include
additional fields
      aaaaa.a
      aaaaa….a Post Code
    
     Position answer
       cccpppppppppp Position is for this MSISDN (formatted as Country
Code + Phone Number) (GSM/3GPP should
conform to TS 123 003)
       Position description
Local Date and Time of phone when position was
        yyyymmddhhmmss
measured.

ETSI

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 9 ETSI TS 102 164 V1.1.1 (2003-04)
XML Code Notes
         Shape of uncertainty area
           It is an ellipse!

North
angle
semiMajor
Axis
semiMinor
Axis

Note that circle can be described by making semiMajor
axis = semiMinor axis

Default WGS84 Coordinate Reference System is defined
by LIF to be 4326 by the EPSG authority. (see clause 12)
             Coordinate of the centre of the ellipse
               addd.ddd Latitude in decimal degrees prefixed with N or S
               addd.ddd Longitude in decimal degrees prefixed with E or W
            
             nnn.nn Angle in degrees of rotation of the ellipse measured
clockwise from north
             nnnnn
Length of semiMajor axis in metres
             nnnnn
Length of semiMinor axis in metres
             aaaaaa Unit for (Required LIF parameter but default unit
is degrees!)
             Optional - default unit is meter
nnnnn
          
        
Optional - Altitude of phone if available (in respect to
         ±nnn
coordinate ellipsoid NOT actual height)
         nnnn Optional - speed in meters/sec if available
         nnnn Optional - Direction phone is moving if available
         nnn LIF optional but required by 112service - Indicates the
probability as a percentage that the phone is located
within the position area defined
      
    
  


ETSI

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SIST-TS ETSI/TS 102 164 V1.1.1:2005
 10 ETSI TS 102 164 V1.1.1 (2003-04)
7 Emergency Location Reporting service (LIF defined
service)
The emergency location reporting service is used by the Mobile Operator to push the position of a mobile subscriber
that has initiated an emergency call to the Emergency Operator. (NB without a request from the Emergency Operator)
NOTE: Report triggered by the user either originating or releasing a call to 112.
The service consists of the following messages:
• Emergency Location Report.
The following message flow encapsulates this service:
Emergency Mobile
Operator Operator
LCS Client Location Server
emergency location report

Request and Answer implemented as:
Emergency Mobile
Operator Operator
Location Server
LCS Client
HTTP POST (Service Result(hdr, body))
HTTP Response (Status_Code)

ETSI

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SIST-TS ETSI/TS 102 164 V1.1.1:2005
 11 ETSI TS 102 164 V1.1.1 (2003-04)
7.1 Emergency Location report (subset of LIF defined request)
XML Code Notes

   to the DTD defining the National Regulatory
Organization
    'http://www.oftel.gov.uk/UK999_MLP_address_extension.dtd'> Name and Address extension
   %extension; (note this is an example of a dtd)
  ]>
Service result for MLP Version 3.0.0
   Emergency Location Report for MLP Version
3.0.0
     What triggered this pushed report - Either
emergency service user originated the
emergency call (EME_ORG) or released the
emergency call (EME_REL)
     Name and address data elements as defined
by the referenced DTD above

      aaaaa…a Registered Customer Name
      aaaaa.a Address of current location
      aaaaa.a
...