satellites & ground wireless broadband infrastructure for public safety workshop on broadband...
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Satellites & ground wireless broadband infrastructure for public safety
Workshop on Broadband Wireless Ad-Hoc Networks and Services12th - 13th September 2002
ETSI, Sophia Antipolis, France
Prepared by :Alain Claverie ([email protected])
Laurent Bouscary
Dinh Phuoc Vo
September 12-13, 20022
Toward the broadband for public safety
• What is the role of telecommunications within all global crisis & disaster relief activities ?
• What are the satellite contributions?
• Which consequences on the MESA project?
September 12-13, 20023
MESA within the global scope
Decision maker
On the field
Operations
September 12-13, 20024
PMR/Satellite cells
PMR Cell
Satellite cell deployed on risk area
Fast deployment of networks
• New wideband wireless network deployment will take years!
• Satellite allows immediate deployment on critical areas
September 12-13, 20025
No technological challenge!
• Example of GSM cells via satellite deployed in 3 months in Mauritania
TimbedraTintane
But an economical challenge!
• Example of GSM cells deployed in Germany during the Elbe 2002 flooding with EveryCom
September 12-13, 20026
Mesa / Satellite integration benefit
Use Existing satelliteINTELSAT, EUTELSAT, ARABSAT,...
PMR• Global solution • Support data, voice & video• Robustness• Group calls• Emergency calls
Satellite solution• Support full duplex video, voice
and data• Fast deployment • Single hop (voice) • Backup of dedicated networks• Reach any area
September 12-13, 20027
International missions
• Benefits of satellite coverage– Turkey, Algeria, Greece …
• Possibility of several cells • Access to the world wide
public network
WHEN • Relief / Humanitarian
forces deployed need contacts with their headquarter
Example with Eutelsat W3
September 12-13, 20028
International Charter Space and Major Disasters
• What is the Charter? – An initiative meant to develop a
coordinated global response of space resources in times of natural or technological disaster.
• Members– European Space Agency Centre national d'études spatiales
Canadian Space Agency National Oceanic and Atmospheric Administration Indian Space Research Organisation
• What space resources are currently available through the Charter?
– The remote sensing satellites RADARSAT-1, SPOT, ERS-2, IRS, POES and GOES. • How to transmit on the field?
September 12-13, 20029
Broadcast of Meteo informations
200 Meteo France > 400 end users stations
• A key issue for crisis & disaster relief
September 12-13, 200210
Get relevant information on stressed conditions
• Have a GLOBAL view of the disaster– Satellite, Aircraft imagery – Information from the field
(video, high resolution image)
• But it is not quite effective today– Delay to get images (at least
24h)
September 12-13, 200211
Integration in the operations management
Group 1Group 2
High speed link
Complementarities of the satellite :
• Backup of existing networks
• Broadband communication (video)
VL OFF
HR image
September 12-13, 200212
Connection between terrestrial, radio and satellite networks
Mobile centreRegional centre
Experts
TETRAPOL networks
Main centre
Terrestrial
Satellite
Radio
September 12-13, 200213
Improvement of existing services to end users: Corporate communications services
Lan interconnection, Multicast data services,Telephony / video conference services (VoIP), Internet / intranet services
Communication services to SOHOs, SMEs, Teleworkers, Home Users New services to end users:
Meshed VPN communication services Extension of the existing broadcast services to interactive services Services for institutional users
Satellite technology: on board switching (WeB)
• Two types of services on one platform – Access to public and private
networks (inc. Internet backbone)
– Mesh network
Accessmission
Mesh RCSTs
Mesh mission
GatewaysAccess RCSTs INTERNET
DVB-S
DVB-RCSDVB-SDVB-RCS
DVB-S
DVB-RCS
September 12-13, 200214
Geo MobilePoint to point communication services
• Types of Services:– Remote connection to other terrestrial networks.– Connection between two users within the satellite
networkMobile Terminals
Mobile Terminals
Service Gateway for S-Band mission
Nomadic Terminals
S-Band Mission
S-Band LinkFeeder Link
Improvement of services (compared with systems already deployed (Inmarsat, Thuraya) Increased spectrum availability for MSS services through use of S-band spectrum Increased ability to serve traffic hot spots Higher data rates for similar size terminals or smaller size terminals (down to palmtop)
New functionalities to satellite operators / service providers Secures S-band spectrum for MSS services
September 12-13, 200215
Optical link (Silex follow on)
• Types of services:– Vice-versa: the provision of
information from the ground to these aircrafts in real time
– The relay of data (typ. High data rate video) from an aircraft to the ground through a geostationary payload (Intersatellite link + feeder link)
Operational introduction of new services Operational concept already validated in orbit: a data link between Spot 4 and Artemis can
be established using a laser beam as signal carrier Real time data collection and transfer Very high bit rate applications (several hundred of Mbit/s) at quasi-error free quality
RF Link
Optical Link
GEO
September 12-13, 200216
Satellite roadmap
Status Expected in orbit date opportunities
WeB system
1999
0102
beginning of the WeB-Artes 3 phase1 program, funding by ESA
WeB phase 2
2006 first broadband regenerative payload for commercial operator
Geo Mobile
9900
00now
0102
01 04
S-UMTS study with ESA
Participation to ASMS-TF with ESA and EC
Advance mobile satellite system study with ESA
Inmarsat programme (F1/F2/F3)
2007 commercial or ESA satellite
Silex follow on 2001 First optical links between Spot4 and Artemis
2003
2007
Artemis in GEO orbit
ESA relay
September 12-13, 200217
Satellite benefits
• Fast deployment of networks – When non existing or damaged terrestrial infrastructure
• Availability and reliability of the satellite– Look at capacity to preempt satellite transponder
• A very broad coverage, with as low as 3 satellites to cover all Earth
• Open system– Support most of communication application (satellite delay)
• Broadband communication – Video, images, voice, teleconference, data
• Secure communications– Compatibility with encryption techniques
September 12-13, 200218
Way forward for integration of the space component in MESA project
• Terrestrial and satellite networks development should be coherent
• Today, main topics are:– Allocated frequency band and associated coordination constraints– Air interfaces, for compatibility with user terminals– Connectivity requirements– Resources management– Network architecture, centralised or not– Network protocols to be supported– Applications requirements (real time)
An integrated MESA standardisation process including the space segment will guarantee a full interoperability with other elements of the MESA infrastructure