1 / 38

Emergency Mobile Telecommunication

Emergency Mobile Telecommunication. Dr. Dora Maros PhD Óbuda University Institute of Telecommunication maros.dora @ kvk.uni-obuda.hu. Emergency telecommunication. - emergency calls, civil warning and information/instruction systems

lise
Download Presentation

Emergency Mobile Telecommunication

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Emergency Mobile Telecommunication Dr. Dora Maros PhD Óbuda University Institute of Telecommunication maros.dora@kvk.uni-obuda.hu

  2. Emergencytelecommunication - emergency calls, civil warning and information/instruction systems - recovery of damaged telecommunication network elements - traffic congestion handling The concept covers the telecommunications needs of society's dedicated resources for ensuring public safety:police forces, fire fighting units, ambulance services and other health and medical services, as well as civil defence services.

  3. EU documents Universal Service Directive 2002/22/EC 112 Directive on privacy in electronic communications2002/58/EC User Data (location) European Commission Recommendation 2003/558/ECon the processing of caller location information in electronic communication networks for the purpose of location-enhanced emergency call services E112 Regulations and Standards I. Tampere Convention:An international framework for the provision of telecommunications resources for disaster mitigation and relief between states, between nations and non-governmental organisations.

  4. 2003: Partnership Cooperation Panel for Telecommunication for Disaster Relief and Mitigation (PCP-TDR) 2005: ITU-T Action Plan – Telecommunications for Disaster Relief and Early Warning (TDR/EW) Regulations and Standards II. Location management in IMT-2000 networks: ITU-T Q.1701 ITU-T Q.1711 ITU-T Q.1721 ETSI TS 102 180: Requirements for communication of citizens with authorities/organizations in case of distress (emergency call handling) ETSI TS 102 182: Requirements for communications from authorities to citizen during emergencies ETSI TR 102 444: Suitability of SMS and CBS for Emergency Messaging

  5. Location Based Services • LBS* is when service/information depends on terminal geographical position • LoCation Services(LCS)** in GSM/UMTS standards • Commercial:value-added service (eg. Traffic report) • Internal:support internal network operations (eg. Handover) • Emergency: in case ofemergency calls (112) • Lawful Intercept: supports various legally required or sanctioned services *GSM Association, Permanent Reference Document (PRD) SE 23. Title: Location Based Services, January 2003. **ETSI TS 123 171 V3.11.0 (2004-03) Technical Specification Universal Mobile Telecommunications System (UMTS); Location Services (LCS); Functional description; Stage 2 (UMTS)

  6. Routing info MSISDN GMSC MSC Paging VLR MS/UE BSC/RNC Location Management in case of normal calls Find the called subscriber HLR MSC/VLR identity IMSI record HLR: 1. level LAC VLR: 2. level IMSI record Range of Location Area depends on number of cells and diameter of cells

  7. HLR SMLC MSC VLR MS/UE GMLC LCS client BSC/RNC Location management with LCS BTS/Node B SMLC: Service Mobile Location Centre GMLC: Gateway Mobile Location Centre

  8. HLR Service request Security func. MSC LCS request Send loc. info VLR MS/UE Loc. meas. report LCS info LCS finished Report ACK GMLC LCS client BSC/RNC+ SMLC End connection Terminal based location identification Loc. meas. process

  9. HLR LCS Sevice request Send routing info Security func. MSC Routing info for LCS Determine user loc. LCS request VLR MS/UE LCS request ACK Start meas. GMLC LCS client BSC/RNC+ SMLC Loc. meas. report LCS info Network based location determination Loc. meas. process

  10. Sector antenna Omni antenna CGI CGI CGI +TA CGI +TA+RSL Geographical position measurement methods I.CGI based E-CGI

  11. Reference direction BSC/RNC+ SMLC Geographical position measurement methods II.TDOA, TOA, AOA Base Station antenna T1 Base Station antenna T2 d1 d2 α T3 β d3 TDOA: Time Difference of Arrival TOA: Time of Arrival AOA: Angel of Arrival

  12. BSC/RNC+ SMLC Base Station antenna Geographical position measurement methods III.E-OTD GPS Reference timing LMU Base Station antenna Measurement report Base Station antenna LMU: Location Management Unit E-OTD: Enhanced Observed Time Difference

  13. BSC/RNC+ SMLC Geographical position measurement methods IV.A-GPS Send GPS coordinates GPS position data

  14. A-GPS Accuracy of location determination technologies Accuracy (m) 1000 CGI, ECGI 500 200 TDOA, TOA 100 E-OTD 50 GPS 20 Outdoor Indoor

  15. SMLC (optional) SMLC/ LMU (op.) LMU/SMLC Comparison of location determination technologies • Basic • CGI, ECGI • Data is available in the network • Software upgrade in the network is needed to evaluate location data • It is not possible to change the phone • Cheapest • Enhanced • TDOA, TOA, EOTD • Data is available in the phone/network • Software upgrade in the network is needed to evaluate location data • It is not possible to change the phone’s software (TDOA, TOA) • It is possible to add a new phone software (E-OTD) • Advanced • A-GPS • Data is available in the phone (GPS coord.) • Software upgrade in the network is needed to evaluate location data • It is possible to change the phone (with GPS) • Expensive for the user

  16. Location Data Call Location management in case of emergency calls ETSI TS 102 180: Requirements for communication of citizens with authorities/organizations in case of distress (emergency call handling)

  17. HLR Routing info MSC VLR MS/UE MS/UE MS/UE MS/UE MS/UE MS/UE Send SMS SMSC BSC/RNC Location management in civil warning systems I.SMS BTS/Node B LAC and CGI info

  18. CellBroadcastAlert SEND CB MESSAGE Alertmessage WMNC 2010, Budapest

  19. CGIs, message MS/UE MS/UE MS/UE MS/UE MS/UE MS/UE With CBS Unless CBC CBC LCS client BSC/RNC Operator (CGI, message) Location management in civil warning systems II.CBS e.g Disaster Management Office BTS/Node B Network Management System

  20. Comparision of SMS and CBS warningsystems • SMS • Addressed (one by one) • 100-200 SMS/sec in the network (SMSC capacity) • IMSI is necessary • Only one message is sent • 160 characters • ACK from the phone • Not immediate display • SDCCH, limited capacity • Location information of the user is required • CBS • Not addressed (broadcasted) • To many thouthends of users at the same time (or more) • IMSI is not necessary • Message is sent repeatedly in every 2-32 sec. (GSM), 1 sec (UMTS), different languages • 93 characters • No ACK from the phone • Immediate display • Channel assigned: 920.

  21. CriticalInfrastructure’sinterdependencies

  22. EM-DAT DisasterDatabase

  23. Disasters and damages in 2010

  24. 9/11 2001 NYC • 4 digitalswitching centre, • 500 opticaltransmissionsystem • 1200 channelcall-center, • 17.000 opticalcabelconnections • 4,4milliondatastream • 90.000 messagetrunk Not damaged Small part is damaged Largely damaged Partially collapsed Completely collapsed Verizon building Losses 200.000 speach line 100.000 PBX line 4,4milliondatastream 11 cells Number of affected14.000 business 20.000 individualsubscriber

  25. Mobile traffic, restoration9/11 2001 Mobile traffic on the day of the attack 92 blocked calls from 100 originated calls 1300% increase in the number of calls Originated calls Blocked calls Restoration time Increase fr. band Normal cell capacity Mobile BaseStations Restoration of Base Stations

  26. London 07.07.2005. 9:47 8:56 9:17 8:51

  27. London 07.07.2005. WMNC 2010, Budapest

  28. OutgoingCallsfromHTComto London BT Previousday Blasts day Traffic Originatedcalls Successfulcalls SUBWAYs BUS TV, radio news

  29. Emergencycalls CallstoAmbulance(104) Calls to Police (107) CallstoEmergencyCallCenters(112) Calls to Fire Deputies (105)

  30. Domino Effect Satellite Internet PSTN Mobile networks

  31. Power SupplyProblemsCaused by Disaster Loss of areas in telecom networks First congestion on the roads Some butteries are discharged Mobile diesel generators delivery Diesel generators where available Only occasionally operated telecommunications Need for new staff The workers are exhausted General fuel shortage All the butteries discharged Butteries First traffic problems (no service) Alarms to NOCs time (hours) Electric Power network Off 1 10 100 1000

  32. A Fiction? NO! A network A ABTS Roaming aggreement 112 Emergencycall B network BBTS B

  33. SpectrumEfficiency? WMNC 2010, Budapest

  34. OSA forSpectrumUnitilization • Weconsidertheconcept of opportunisticspectrumaccess (OSA) -- wherebyradiosidentifyunusedportions of licensedspectrum, and utilizethatspectrumwithoutadverseimpactontheprimarylicensees. OSA allowsbothdramaticallyhigherspectrumutilization and near-zerodeploymenttime, with an obvious and significantimpactonbothcivilianand military communications. 

  35. Opportunistic Mobile Networks Wirelessaccess: Bluetooth, Zegbee, WLAN…etc.

  36. Opportunistic Mobile Networks (example ONE simulation)

  37. Opportunistic Mobile Networks (movementmodells)

  38. To be continued….. Thank you for your attention!

More Related