UK Spectrum Policy Forum Paul Deedman, Manager, Spectrum Management, Inmarsat Global Ltd Overview of Mobile Satellite Spectrum usage See more at: http://www.techuk.org/about/uk-spectrum-policy-forum All Rights Reserved

1. © Inmarsat
Overview of Mobile Satellite
Spectrum usage
Paul Deedman (paul.deedman@inmarsat.com)
22 May 2014

2. © Inmarsat
Inmarsat brief history
The industry leader for more than 30 years
90 92 94 96 98 2000 04 06 081979
Founded
as an IGO
82
1st
maritime
service
1st aero
service
1st land
mobile
service
Company
privatisation
High-speed
data services
Land
mobile
broadband
London Stock
Exchange listing
Maritime
& aero
broadband
Satellite phone
services
Launch of
Inmarsat-2
satellites
Launch of
Inmarsat-3
satellites
Launch of
Inmarsat-4
satellites
Global
broadband
coverage
09 2010
IsatPhone Pro
global handheld
Contract signed for
I-5 Global Xpress
Ka-band
constellation
Alphasat I-XL
contract signed
201202
Acquisition begins of Stratos,
Segovia and Ship Equip
Launch of
XpressLink
2

3. © Inmarsat
L-band Satellite fleet
3 3 1 (launch 2013)
Service links in L-band (1525-1559 MHz and 1626.5-1660.5 MHz)
Alphasat adds extended L-band (1518-1525 MHz and 1668-1675 MHz)
Feeder links and TT&C in FSS in C-band

4. © Inmarsat
Inmarsat-4 spot beam coverage
4

5. © Inmarsat
Our network services
Voice and broadband data communications
Broadband data
> 580kbps
Simultaneous voice
Portfolio of
guaranteed
on-demand IP
streaming rates
Portable, fixed and
vehicular
Broadband data
up to 432kbps
per channel
Simultaneous voice
Guaranteed data
rates up to 224kbps
GPRS and UMTS
compatible
SwiftBroadbandFleetBroadbandBGAN
Broadband data
up to 492kbps
Simultaneous voice
Guaranteed data
rates up to 256kbps
Accessible through
a compact antenna
Non-SOLAS voice
distress
5

6. © Inmarsat
IsatPhone Pro
Inmarsat global handheld satellite phone
Service launched in June 2010
Offers satellite telephony, voicemail, SMS text
and email messaging, GPS location data
Longest battery life in the market
Only global handheld to support Bluetooth
Competitively priced handset and airtime
Full range of accessories and docking stations
6

7. © Inmarsat
Europasat (S-band)
[Overview of system and summary
of EU selection process to be
added]
Inmarsat and Solaris successful in EC managed European selection
process
Each operation has access to 2x15 MHz of spectrum
May include a “complementary ground component” (CGC)
Inmarsat developing an aeronautical CGC, for provision of passenger
connectivity

8. © Inmarsat
Global XpressTM
US$1.2 billion global broadband network
Download speeds of up to 50 Mbps to 60 cm
antenna
Upload speeds around 5 Mbps for 60 cm
antenna
Boeing contracted to build four Inmarsat-5
satellites
First launch 2013, with global coverage in 2014
Each satellite to carry 89 Ka-band beams
Plus steerable spot beam capacity (HCP)
Lifetime of 15 years
Complements our L-band services
8

9. © Inmarsat
Global Xpress Spectrum
9
Global payload
User Uplink: 29.5 -30.0 GHz
User Downlink: 19.7 - 20.2 GHz
Feeder Uplink: 28.0 - 29.5 GHz
Feeder Downlink: 18.2 - 19.7 GHz
HCP Payload
User Uplink: 29.0 - 29.5 GHz
User Downlink: 19.2 - 19.7 GHz
Feeder Uplink: 27.5 - 28.0 GHz
Feeder Downlink: 17.7 - 18.2 GHz
Why Ka-band?
2.5 GHz of available spectrum – 5 times the availability at Ku
Includes 2x500 MHz of spectrum exclusive to satellite
Fewer operational satellites – simplify coordination

10. © Inmarsat
Global Xpress User Terminals
10
Uses adaptive coding and modulation to maintain link in rain-fade
Data rates for 60 cm antenna: 5 Mbit/s uplink, 50 Mbit/s downlink
for 60 cm
Larger and smaller terminals with higher or lower datarates)
1m 60cm Class A Class B Fixed Transportable COTM Manpack
Antenna Size (cm) 100 60 17x70 30 >100 TBD TBD <70
Antenna Structure reflector reflector asymmetric symmetric reflector reflector asymmetric Flat panel/reflector
Maritime Aero Land-based
© Inmarsat

11. © Inmarsat
Other Mobile Satellite Systems
Orbcomm – M2M applications, narrow band - 137/400 MHz
Globalsar/Iridium – LEO voice and data – 1.6/2.4 GHz bands
Regional GSO operators Thuraya, ACES, Optus, Lightsquared,
MexSat, JRANSA - 1.5/1.6 GHz bands (shared with Inmarsat)
Echostar/Solaris – the second S-band operator in Europe. 2.0/2.1
GHz
Airbus Defence and Space – government services – 7/8 GHz
bands
Various FSS operators in C-band/Ku-band/Ka-band – providing
mobile services in FSS networks (ESVs, AMSS)

12. © Inmarsat
Contributions to social and economic value
Government Services
- Defence (Army, Navy, Air Force)
- Customs and Border protection
- Anti-piracy
- Unmanned Aircraft
Disaster Relief
- ITU/United Nations
- International Red Cross
- Télécoms Sans Frontières
Media (TV, Radio and print media
reporting from the scene)
- BBC
- CNN
- Reuters
Critical Infrastructure
- Mining, Oil, Gas exploration
Supporting international maritime
trade
- The shipping industry now carries more
than 90% of the word’s trade and has
tripled in tonnage since 1970
Safety Critical Service
- Part of GMDSS for maritime safety
- Provider of aircraft safety services
(AMS(R)S)
UK Economic Benefits
- Inmarsat plc Revenue US$1.3bn,
operating profit US$ 238m (2013)
- A globally successful company in the UK

13. © Inmarsat
Sector trends
L-band GSO systems
- steady growth
- satellites being replaced
- possible use of ATC in North America
- continuing need for high reliability (safety) and modest bandwidth
applications.
L-band and S-band LEO systems
- satellites being replaced, will extend life by >15 years
- greater emphasis on data over voice
Development of S-band in Europe, including CGC
Ka-band mobile systems for high bandwidth applications

14. © Inmarsat
Expected changes to technology and spectrum
Driven by demand for mobile broadband, particularly locations hard to
reach by terrestrial means
Need for higher data rates, and reduced cost per bit to users
Leads to increasing efficient use of lower frequency spectrum (e.g. use
of:
- multi-spotbeam/high gain satellite antenna (22m unfurlable antenna now in
operation),
- use of complementary ground components
Terminal technology allows highly stable mobile platforms (e.g. pointing
accuracy within 0.2 deg, on a ship or aircraft)...
...means small terminals, consistent with conventional FSS VSATs...
...and that opens up the FSS bands for mobility, in particular the Ka-
band

15. © Inmarsat
Longer-term (10-20 years) technology and
spectrum needs and options
Spectrum aspects:
Satellite spectrum must be well harmonised internationally
Therefore fully reliant on the ITU frequency allocations and
administrations respecting those allocations
For mobile satellite use, sharing with terrestrial use is often impractical,
and that may require administrations to refrain from authorising
terrestrial use in some bands
Technology:
Expect to see more satellites in Ka-band, and additional frequency
bands used for mobility