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Emergency call positioning

Emergency call positioning. Miikka Poikselkä Seminar on Networking Business at Helsinki University of Technology 3.11.2004 Espoo. Content. Definitions and introduction Regulatory status Solution description Impact the industry players. Definitions.

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Emergency call positioning

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  1. Emergency call positioning Miikka Poikselkä Seminar on Networking Business at Helsinki University of Technology 3.11.2004 Espoo

  2. Content • Definitions and introduction • Regulatory status • Solution description • Impact the industry players

  3. Definitions • emergency call means a service, recognised as such by the Member State, that provides immediate and rapid assistance in situations where there is a direct risk to life or limb, individual or public health or safety, to private or public property, or the environment but not necessarily limited to these situations. • location information means in a public mobile network the data processed indicating the geographic position of a user's mobile terminal and in a public fixed network the data about the physical address of the termination point. • Emergency call positioning here means a mechanism to deliver user’s location information to an emergence centre. Note: First two definitions are inherited from EU’s recommendation.

  4. Regulatory status in European Union • In July 2003 European Union released commission’s recommendation on the processing of caller location in case of emergency call. • Wireless operators are requested to forward (push) the best available location of the caller to public safety answering point. • For the intermediate period, it is acceptable that wireless operators make location information available on request only (pull). • This should apply to roaming users as well. • Fixed public telephone network operators should make available the installation address of the line from which the emergency call is made. • Location information should identify the originating network as well. • Public safety answering points should be able to retrieve an updated location information during the call or after the call. • European Union member states are requested to submit their implementation status by end of 2004.

  5. Regulatory status in the United States • Federal Communications Commission (FCC), requested already 1994 that mobile radio service providers have to provide caller’s location information for emergence service providers. • E911 First Report and Order (1996) contains two phase approach to an emergency call positioning. • In the phase Ithe location of the cell site or base station receiving a 911 call is requested to be delivered to the designated 911 Public Safety Answering Point. • In the phase II, more accurate automatic location information of a caller is required. The accuracy of the required location information depends on whether a handset-based location technology or Network-based Location Technology is used. • For network-based technologies: 100 meters for 67 percent of calls, 300 meters for 95 percent of calls • For handset-based technologies: 50 meters for 67 percent of calls, 150 meters for 95 percent of calls

  6. GMLC 8. Emergency centre 3. 7. 5. 4. 2. 6. 1. RAN MSC Pull model GMLC 5. Emergency centre 6. 3. 2. Push model 4. 1. RAN MSC Emergency call positioning in CS network Legend Positioning request Session setup

  7. GMLC P-CSCF S-CSCF RAN Emergency centre a) b) GPRS core PSTN / PLMN CS interworking functions Legend Positioning request Session setup When a PDP context for media is activated SGSN initiates location procedures IMS emergency call positioning –push model Note: Animated slides

  8. GMLC P-CSCF S-CSCF RAN Emergency centre a) b) GPRS core PSTN / PLMN CS interworking functions Legend Positioning request Session setup IMS emergency call positioning –pull model Note: Animated slides

  9. Database 2. Database look-up Emergency centre 1. Emergency call 3. Emergency call with location information Switch Push model Database 3. Database look-up Emergency centre 1. Emergency call 2. Emergency call Switch Pull model Emergency call positioning in the fixed network

  10. Main impacts to different players End-user Operator • technology not visible • overall safety increases • may have impact to device price • may boost location services in general • No choice to avoid this requirement • None revenue generating service • increases costs in terms of • Investment • Network usage Vendor Emergency centre • Additional implementation efforts • Country specific implementations may be required • May boost introduction of GPS enabled terminals • Upgrades to emergency centres may in several steps… (pull, push, introduction of IP based technology)

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