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 (Alain.Claverie@astrium-space.com)

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