SUSI ANDRIANIandriani@fh-brandenburg.de

TIM-99

OVERVIEW

Satellite Technology GMPCS Definition Why GMPCS? GMPCS Operator Introducing ACeS

moon

earth

sun

Satellite is any object that orbits or revolves around another object (For example : the moon is a satellite of earth,and earth is a satellite of a sun)

What is a satellite ?

satellite as relay station in space send and receive messages from

anywhere on earth messages can be telephone calls,

TV pictures, fax, Internet connections have a wide coverage

What is communications satellites?

Satellite Technology

Satellite Communication System

Mobile Network

Fixed Network

Gateway

TT & C Station

Satellite Operation

Center

Space segment Space segment

Ground segmentGround segment

Satellite Technology

UPLINK DOWN-LINK

Space Station Space Station

Transmitting Earth Station

ReceivingEarth Station Ground Station Ground Station

Geostationary Orbit (GEO) 36000 km Medium Earth Orbit (MEO) 5000 - 12.000 km Low Earth Orbit (LEO) 500 - 1500 km

GSO36000 km

non-GSO (LEO, MEO)500 - 12000 km

Satellite Orbits

What is GMPCS ?

• Defined by the International Telecommunications Union (ITU) as, 'any satellite system (i.e., fixed (FSS) or mobile (MSS), global or regional, geo-stationary or non-geo-stationary, existing or planned) providing telecommunications services directly to the end-users from a constellation of satellites

WHY GMPCS ?

• GMPCS networks will provide a unique technical solution to the limitations associated with terrestrial networks, offering messaging, voice, and data communications accessibility to anyone, anywhere, at anytime.

World Telecommunication Policy Forum (WTPF) (Geneva, 21 - 23 October 1996)

WTPF

5 Opinions 1 The role of GMPCS 2 The shared vision and principles for GMPCS 3 Essential Studies by ITU 4 GMPCS MoU (Memorandum of Understanding) 5 Implementation of GMPCS in Developing Countries

MEET THE PLAYERS ....

• Coverage : global, 10 satellites, MEO (103555 km), operational : 2000, Inmarsat (UK company)

• Coverage : global, 288 satellites, Internet in the Sky, LEO (700 km), operational : 2004, Bill Gates & Craig Mc Graw (US)

• Coverage : regional (Asia Pacific), GEO (35800 km), operational : August 2000 (launched : 12 February 2000), Indonesia

• Coverage : Global, 66 satellites, orbit : LEO (780km) operational : since 1998 --> GMPCS Pioneer

• Coverage : global, 48 satellites, orbit : LEO (14000 km), operational since 1999, US company

INTRODUCING....

ASIA CELLULAR SATELLITE (ACeS)

http://www.aces.co.id

Asia Cellular Satellite

.... Asia’s first Regional Mobile Satellite Telephony System .... allowing users to & from anywhere in ACeS Asian

footprint and around the world ACeS shareholders are :

PT. Pasifik Satelit Nusantara (Indonesia) The Philippines Long Distance Telephone Company (Philippine) Jasmine International of Thailand (Thailand) Lockheed-Martin Global Telecommunications (USA)

ACeS launched ...

ACeS “Garuda 1” successfully launched on 12 February 2000 by International Launch Service (ILS)

Using “Proton” rocket from Baikonur, Kazahkstan

ACeS Network

ACeS Network

ACeS Satellite

GARUDA 1 located at 123 degree East (GEO satellite) 11,000 simultaneous telephone channels & supporting to 2

million subscribers Frequency :

service Link : L-Band (1525 - 1559 MHz Uplink & - 1626.5 - 1660.5 MHz)

Feeder Link : Ext C-Band (6425-6725 MHz up-link & 3700 - 4200 MHz down-link)

Service life : 12 years Communications payload feature two 12-meter antennas 140 satellite spot beams

Coverage

Asia Pacific (China, India, Pakistan, Indonesia, Thailand, Bangladesh, .... )

ACeS subscribers travelling outside the satellite coverage area can roam on GSM worldwide networks

Gateways

..provide interface between ACeS and other telecommunication networks (e.g PSTN and PLMN)

... Located at Jakarta, Taiwan, Thailand & Philippine

12-meter antenna

Satellite Control Facility

...monitor the Garuda satellite ...located at Batam Island,

Indonesia 15.5 meter tracking antenna

for links with the satellite

Handset

Dual Mode (satellite - GSM 900) frequency :

Satellite 1500 - 1600 MHz L-Band GSM : 900 MHz

...made by Ericsson

GARUDA 1 operational : August 2000 GARUDA 2 will launch in 2002 to cover Africa & a part

of Europe

ACeS Future Plan

THANK YOU !