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SUSI ANDRIANI [email protected] TIM-99 OVERVIEW Satellite Technology GMPCS Definition Why GMPCS? GMPCS Operator Introducing ACeS What is a satellite ? 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) sun earth moon Satellite Technology What is communications satellites? 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 Satellite Communication System Space segment Fixed Network Mobile Network TT & C Station Gateway Satellite Operation Center Ground segment Satellite Technology Space Station UPLINK Transmitting Earth Station DOWN-LINK Ground Station Receiving Earth Station Satellite Orbits Geostationary Orbit (GEO) 36000 km Medium Earth Orbit (MEO) 5000 - 12.000 km Low Earth Orbit (LEO) 500 - 1500 km non-GSO (LEO, MEO) 500 - 12000 km GSO 36000 km What is GMPCS ? • Defined by the International Telecommunications Union (ITU) as, 'any satellite system (i.e., fixed (FSS) or mobile (MSS), global or regional, geostationary 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) 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 WTPF MEET THE PLAYERS .... • 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 • 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 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 ACeS Future Plan GARUDA 1 operational : August 2000 GARUDA 2 will launch in 2002 to cover Africa & a part of Europe THANK YOU !
