DVB-RCS for emergency services Taiwan Case

Transcription

1 DVB-RCS for emergency services Taiwan Case 1st Satlabs DVB-RCS Symposium 8th - 9th September 2005 ESA/ESTEC - Noordwijk Netherlands July 2005

2 Taiwan NFA program Page 2 Taiwan National Fire Agency (NFA) selected Alcatel in September 2004 to deliver a satellite communication network for hazard prevention NFA program includes delivery of Satellite Hubs (based on A9780 DVB-RCS Gateway Product) Satellite Terminals (A9780 DVB-RCS Terminal Product) Satellite capacity for the Satcom network Field Command Vehicles (FCV) A terrestrial communication network Applications including voice, visio-conference and video-streaming

3 NFA satellite network configuration Page 3 NFA program main objective is to interconnect via a satellite it s Head Quarters with 20 primary fixed stations at national level (L1) 11 secondary fixed stations at regional level (L2) 29 tertiary fixed stations at local level (L3) 12 stations on FCV All of these offices and vehicles are spread over TAIWAN Main motivation for NFA to use a satellite-based solution was The potential destruction of terrestrial communication infrastructure in case of disaster The need to move quickly broadband communication means in areas potentially not equipped with terrestrial networks

4 NFA satellite network configuration National Level (Broadband stations) Taipei Page 4 2 DRC Centers in TAIPEI (HQ) National Bureau (ministry) (L2) Taichung Hualien County/City Head Office (L1) Regional offices (L3) Command Vehicle Tainan Taitung Kaohsiung

5 Main Satcom network features Page 5 The Satcom network supports non-real time and real time services with assured quality of service Data Telephony Visio-conference Video streaming The Satcom network is able to quickly switch between different operation scenarios Normal period : Level 1 Crisis period : Level 2 Crisis period : Level 3 Application of a given scenario leads to the activation of additional services and of a specific frequency plan (providing more or less data throughput)

6 Main Satcom network features con t Page 6 The Satcom network provides a high availability Network includes two Hubs in geographical redundancy Main Hub is fully redundant Back-up Hub is non-redundant In case of switching between Hubs, the network is again operational in less than 2 hours The Satcom network is interconnected with terrestrial infrastructures Microwave data network PSTN

7 Overall Network Architecture Page 7 PSTN IDU OmniPCX OXO A9780 DVB-RCS Satellite Terminal A9780 DVB-RCS Gateway Omni PCX OXE PSTN For local call IDU Satellite Access Network OmniPCX OXO A9780 DVB-RCS Satellite Terminal A9780 DVB-RCS Gateway End User PC Internet IAD Eth Hub IDU Field Command Vehicle MicroWave

8 IP Data Service Page 8 L1,L2,L3 stations STAR DRC HQ Existing Data network + Internet Access Data Network and Internet Existing Data Network + Internet Access Existing Microwave Network RF Existing Microwave Network Emergency vehicles IP data service characteristics Data service is operational whatever is the operation scenario IP data rate increase, for some stations, during crisis period Protocols: TCP/IP Data service topology: star Integration with existing Microwave network

9 Telephony Service Page 9 L1,L2,L3 stations DRC HQ Existing PABX Platform PSTN FULL MESH RF Existing Microwave Network Possibly Existing PSTN interconnection Emergency vehicles Telephony service characteristics Existing Microwave Network Telephony service includes voice and fax Telephony service is operational whatever is the operation scenario Simultaneous calls towards different stations is possible Telephony service is based on VoIP technology Protocols: G723 for compression, H323 & SIP for signaling Telephony service topology: mesh Integration with existing PABX, PSTN and Microwave networks

10 Video-Conference Service Page 10 L1,L2 stations DRC HQ STAR TO HUB or POINT TO POINT RF Emergency vehicles Video-conference service characteristics Video-conference service is activated in level 3 crisis scenario Video-conference service is based on IP technology Protocols: H263 for compression, H323 for signaling Video-conference service topology: point to multi-point MCU is located in the HQ

11 Video Streaming Service Page 11 L1 stations DRC HQ POINT TO POINT to HUB Radio Solution + IP encoding RF Emergency vehicles Radio Solution + IP encoding Video streaming service characteristics Video streaming service is activated in level 2 crisis scenario TV cameras transmit images to the stations using radio links Stations code and transmit the images Video-streaming service is based on IP technology Protocols: MPEG-4 at 2 Mbit/s Video streaming service topology: point to point towards the HQ

12 Stations Communication Capabilities Page 12 HQ Existing trunk lines for130 voice lines + 20 FAX lines Visio conference : multi session capability (up to 16 sites attending with) 2 video channels 2 satellite phones with a total traffic of 128Kbps (type Inmarsat) L1 STATIONS Capability of 6 voice channels + 2 FAX lines Visio conference : one session capability Data : 2 Mbps capability 1 transmission/reception channel for MPEG4 real time image transmission 2 channels reserved for satellite phones with a total traffic of 128Kbps (type Inmarsat) L2 STATIONS Capability of 4 voice lines + 2 FAX lines Visio conference : 1session capability

13 Stations Communication Capabilities con t Page 13 Data : 1 Mbps capability 1 satellite phone channel (type Inmarsat) L3 STATIONS Capability of 2 voice lines + 1 FAX line Data : 512/64 Kbps capability Field command vehicles Capability of 20 voice channels : 16 from VHF/UHF + 4 phone lines + 2 FAX (shared with phone lines) - Voice toward the PSTN & PBX Visio conference : one session capability Data: 1 Mbps capability Video capability : 1 Video streaming from helicopter or close cameras VHF/UHF/HF communication equipment 1 satellite phone channel (type Inmarsat)

14 DVB-RCS Benefits for NFA Program Page 14 DVB-RCS technology brings to NFA the following benefits The capability to federate various services within the same network Using the IP protocol for all services With QoS mechanisms to manage priorities between the services The optimization of the satellite bandwidth required for the network traffic Satellite resources for a given service are only allocated for the service period and can after that be used by other services The ability to take into account several operational scenarios with different network resource sizing and to quickly switch between scenarios An attractive equipment cost, DVB-RCS Terminals being much less costly than traditional mesh Terminals solutions (such as TDMA ones)

15 Program Status Page 15 Contract awarded to Alcatel TAISEL in September 2004 Turn key system (including Satellite resource providing) Satellite Access Segment is organized around Alcatel 9780 DVB-RCS product (Satellite Hubs and Terminals) Voice services are mainly offered through Alcatel OmniPCX products Shipping of first Hubs and Terminals: April 2005 Planned to be operational (phase 1) by Q4 2005

16 Page 16 Any question? Please contact : <renaud.vogeleisen@alcatelaleniaspace.com>