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Colombo, Sri Lanka, 7-10 April 2009 Real-time Data Streaming – The Next Generation Pradeep de Almeida Chief Technology Officer Dialog Telekom PLC, Sri.

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Presentation on theme: "Colombo, Sri Lanka, 7-10 April 2009 Real-time Data Streaming – The Next Generation Pradeep de Almeida Chief Technology Officer Dialog Telekom PLC, Sri."— Presentation transcript:

1 Colombo, Sri Lanka, 7-10 April 2009 Real-time Data Streaming – The Next Generation Pradeep de Almeida Chief Technology Officer Dialog Telekom PLC, Sri Lanka pradeepdea@dialog.lk FORUM ON NEXT GENERATION STANDARDIZATION (Colombo, Sri Lanka, 7-10 April 2009)

2 Colombo, Sri Lanka, 7-10 April 2009 2 Contents Application Challenges Security Standardization and Standards Adaptation

3 Colombo, Sri Lanka, 7-10 April 2009 3 Applications Mobile Television Information dissemination Weather, traffic, airline schedule, stock, emergency warnings Telemetry data collection for remote monitoring / surveillance

4 Colombo, Sri Lanka, 7-10 April 2009 4 Convergence at all Layers Mobile Network Broadband Network Living Room - IPTV On the Move – Mobile TV Seamless Session Transfer

5 Colombo, Sri Lanka, 7-10 April 2009 5 Streaming Content Delivery to Mobile and Portable Devices Core Network IP Core Network supports real-time traffic in Unicast, Multicast and Broadcast modes Challenge is in the Access Network Bandwidth / Capacity Quality of Service Service and Content Security

6 Colombo, Sri Lanka, 7-10 April 2009 6 Access Network In-band Streaming over GERAN / UTRAN (Unicast) Multimedia Broadcast / Multicast Service over UTRAN (MBMS) Out-of-band Broadcasting Technologues DVB-H MediaFLO 1 Seg (extension of ISDB-T) T-DMB / S-DMB Unidirectional content flow Uses cellular network for reverse channel / interactivity

7 Colombo, Sri Lanka, 7-10 April 2009 7 Streaming / Unicast Core Network SGSN GGSN As many number of streams, end-to-end, as number recipients Content Streams

8 Colombo, Sri Lanka, 7-10 April 2009 8 Multicast /Broadcast Core Network SGSN GGSN Single stream per content, end-to-end Content Streams

9 Colombo, Sri Lanka, 7-10 April 2009 9 Broadcast Network Transmitter Out-of-band Broadcast Reverse / Interactivity Channel BTS / Node B Cellular Network (GSM/GPRS/3G) Content Broadcast Channel Interaction Processing and Subscriber Management / Charging System Interface

10 Colombo, Sri Lanka, 7-10 April 2009 10 Choice of Technology Mode /TechnologyTypical ApplicationsMerit Profile Streaming (GPRS LTE) On-demand Media retrieval Real-time P2P Datacasting Taxing on the cellular access network Less costly Roaming possible Reliable delivery through FLUTE & file-repair procedure for data casting (MBMS only) MBMS (3G LTE) Media delivery (short duration – push) P2P and P2MP Datacasting Broadcast Technologies (DVB-H, MediaFLO, 1 Seg, T/S-DMB) Media delivery (long duration / continuous) Infotainment No capacity impact on cellular network Requires an overlay broadcast network No roaming

11 Colombo, Sri Lanka, 7-10 April 2009 11 Choice of Technology Source: Ericsson Presentation Material

12 Colombo, Sri Lanka, 7-10 April 2009 12 Multimedia Broadcast Multicast Service (MBMS) MBMS defined in 3GPP as a point-to-multipoint (PTM) downlink bearer service for IP data in the PS domain offering high speed data rates up to 256 kbit/s MBMS Features and Services Efficient use of Radio & Core Network Resources PTM Broacasting and Multicasting Capability Different QoS for each Media Session Error protection (ex. interference, cell changes etc.) Synchronization between media sessions Service Interworking (MBMS with e.g. MMS etc) Streaming over RTP / SRTP Download over FLUTE

13 Colombo, Sri Lanka, 7-10 April 2009 13 MBMS over 2G/3G UMTS/HSDPA Elements needing upgrades SGSN / GGSN UTRAN / GERAN User Equipment New Network Elements BM-SC (Broadcast Multicast Service Centre) Existing Network Limitations Per user GTP tunnels for multicast content Inefficient use of radio resources Cell broadcast – low bit rate services only Enhancements from MBMS New multicast transport channel defined PTM transport over HSDPA Intelligent switching to and from PTP PTM modes Ref: 3GPP TS 23.246

14 Colombo, Sri Lanka, 7-10 April 2009 14 MBMS over 3G LTE Improvements offered by eMBMS Better performance from OFDM SFNs Combining from synchronized cells Increased throughput from higher data rates Reduced interference, increased receive power Carrier sharing for broadcast/multicast and unicast is more practical 7kHz sub-carrier defined for eMBMS Ref: 3GPP TS 36.300

15 Colombo, Sri Lanka, 7-10 April 2009 15 DVB-H Network DVB-H Service Manager Content Ingest Interaction Manager Subscriber Management & Charging System Transmitter IP Encapsulator Broadcast Backhaul Network Cellular PS Network

16 Colombo, Sri Lanka, 7-10 April 2009 16 Interactivity for DVB-H DVB-H Service Manager DVB-H Service Manager Broadcast Channel (One way flow) Cellular PS Channel Interactions On-demand content Push content Adopted from Nokia Presentation Material

17 Colombo, Sri Lanka, 7-10 April 2009 17 Comparison of Media Broadcast Technologies MBMSDVB-HDVB-SH MediaFL O1 Seg / ISDB-T T-DMBS-DMB StandardOpen / 3GPPOpen / DVB.org Proprietary / Qualcomm Open / ARIB (Japan) Open / South Korea Frequency2 GHzVHF, UHFVHF, UHF, L- band, S-band VHF, UHFUHFVHF, UHFS-band, Ku- band Channel Bandwidth 5 MHz5,6,7,8 MHz1.7,5,6,7,8 MHz 6 MHz432 kHz1.538 MHz25 MHz Spectral Efficiency 0.15~0.3 bps/Hz 0.45~1.86 bps/Hz 0.49~2.15 bps/Hz 0.47~1.87 bps/Hz 0.2~1.2 bps/Hz ModulationWCDMAOFDMCOFDM, TDM / COFDM OFDM Error Correction Turbo, Raptor code Convolutional, Reed- Solomon Turbo, Convolutional Turbo, Reed- Solomon Convolutional, Reed- Solomon Data rate in real scenario Up to 1.5 Mbps Up to 15 Mbps 17.2 MbpsUp to 15 Mbps 416 kbpsUp to 1.4 Mbps Compiled from published literature and Internet

18 Colombo, Sri Lanka, 7-10 April 2009 18 Mobile TV Standard Adaptation

19 Colombo, Sri Lanka, 7-10 April 2009 19 Security Subscription Authentication & Authorization Encryption of content Key Management System

20 Colombo, Sri Lanka, 7-10 April 2009 20 MBMS Security Architecture User Authentication & Authorization Using HTTP Digest User Authentication & Authorization GAA / GBA used for key agreement Distribution through MIKEY Traffic Protection Streaming using RTP/SRTP Data downloads using FLUTE Ref: 3GPP 33.246

21 Colombo, Sri Lanka, 7-10 April 2009 21 Service Purchase & Protection (SPP) for DVB-H Device Based SIM based

22 Colombo, Sri Lanka, 7-10 April 2009 22 SIM Based Security OSF is driven by the broadcast industry Standards specified by DVB.org Based on conventional Conditional Access System (CAS) for digital television broadcasting Keys are broadcasted over broadcast media The Key Management System (KMS) is vendor specific OMA BCAST is driven by the telco industry OMA (Open Mobile Alliance) specified KMS is specified Keys are delivered over cellular mobile network

23 Colombo, Sri Lanka, 7-10 April 2009 23 OSF Approach CA Control System IPEModulator Control Word (CW) ECMs EMMs Encoder + Scrambler CA Applet KMS Device Agent KDA ECM: Entitlement Control Message EMM: Entitlement Management Message KMS: Key Management System Adopted from Irdeto Presentation Material

24 Colombo, Sri Lanka, 7-10 April 2009 24 OMA BCAST Approach BCAST Server IPEModulator Encoder + Scrambler BCAST Client BCAST SIM STKM LTKM STKM: Short-term Key Message LTKM: Long-term Key Message Adopted from Irdeto Presentation Material

25 Colombo, Sri Lanka, 7-10 April 2009 25 Conclusion Challenge for standardization to achieve global interoperability Challenge for the operators is to select the right technology mix to delight the customer

26 Colombo, Sri Lanka, 7-10 April 2009 26 MBMSDVB-HDVB-SHMediaFLO1 Seg / ISDB-T T-DMBS-DMB StandardOpen / 3GPPOpen / DVB.org Proprietary / Qualcomm Open / ARIB (Japan) Open / South Korea Frequency2 GHzVHF, UHFVHF, UHF, L- band, S-band VHF, UHFUHFVHF, UHFS-band, Ku- band Channel Bandwidth 5 MHz5,6,7,8 MHz1.7,5,6,7,8 MHz 6 MHz432 kHz1.538 MHz25 MHz Spectral Efficiency 0.15~0.3 bps/Hz 0.45~1.86 bps/Hz 0.49~2.15 bps/Hz 0.47~1.87 bps/Hz 0.2~1.2 bps/Hz ModulationWCDMAOFDMCOFDM, TDM / COFDM OFDM ConstellationQPSKQPSK, 16QAM, 64QAM QPSK, 8PSK, 16APSK, 16 QAM QPSK, 16QAMQPSKDQPSK, 16QAM, 64QAM DQPSK Code RateVariable (with Channel condition) ½, 2/3, ¾, 5/6, 7/8, 4/5 1/5, 2/9, ¼, 2/7, 1/3, 2/5, 1/2, 1/3 ½, 1/3, 2/32/3½, 1/3, ¼, 2/3, 4/9, 8/9 ½, 2/3, ¾, 5/6, 7/8 Guard Interval n/a1/4, 1/8, 1/16, 1/32 ¼, 1/8, 1/16, 1/32 1/81/8, ¼, 1/16, 1/32 1/4 CodingTurbo, Raptor code Convolutional, Reed-Solomon Turbo, Convolutional Turbo, Reed- Solomon Convolutional, Reed-Solomon Max Data Rate 1.5 Mbps23.75 Mbps17.2 Mbps24 Mbps416 kbps 0.28 Mbps – 1.787 Mbps 1.8 Mbps Data rate in real scenario Up to 1.5 Mbps Up to 15 Mbps17.2 MbpsUp to 15 MbpsUp to 1.4 Mbps Single Service Data Rate 0~256 kbps0~10 Mbps12 kbps ~ 1 Mbps 268~384kbps8 kbps ~ 1.8 Mbps 256 kbps Maximum distance to transmitter 500m ~ 2 kmUp to 40 kmN/AUp to 25 kmUp to 90 kmN/A Reception at 120 km/h Yes Seamless Handover Yes N/AYes N/A


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