1 / 25

Real-time Data Streaming – The Next Generation

FORUM ON NEXT GENERATION STANDARDIZATION (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. Contents. Application Challenges Security

ryder
Download Presentation

Real-time Data Streaming – The Next Generation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. FORUM ON NEXT GENERATION STANDARDIZATION (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

  2. Contents • Application • Challenges • Security • Standardization and Standards Adaptation

  3. Applications • Mobile Television • Information dissemination • Weather, traffic, airline schedule,stock, emergency warnings • Telemetry data collection forremote monitoring / surveillance

  4. Convergence at all Layers Broadband Network Living Room - IPTV Seamless Session Transfer Mobile Network On the Move – Mobile TV

  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. 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. Streaming / Unicast SGSN GGSN Content Streams Core Network SGSN As many number of streams, end-to-end, as number recipients

  8. Multicast /Broadcast SGSN GGSN Content Streams Core Network SGSN Single stream per content, end-to-end

  9. Out-of-band Broadcast Broadcast Channel Broadcast Network Content Transmitter Cellular Network (GSM/GPRS/3G) BTS / Node B Reverse / Interactivity Channel Interaction Processing and Subscriber Management / Charging System Interface

  10. Choice of Technology

  11. Choice of Technology Source: Ericsson Presentation Material

  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. 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. MBMS over 3G LTE Ref: 3GPP TS 36.300 • 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

  15. DVB-H Network Content Ingest IP Encapsulator Broadcast Backhaul Network Transmitter DVB-H Service Manager Interaction Manager Cellular PS Network Subscriber Management & Charging System

  16. Interactivity for DVB-H Broadcast Channel (One way flow) DVB-H Service Manager DVB-H Service Manager • Cellular PS Channel • Interactions • On-demand content • Push content Adopted from Nokia Presentation Material

  17. Comparison of Media Broadcast Technologies Compiled from published literature and Internet

  18. Mobile TV Standard Adaptation

  19. Security • Subscription • Authentication & Authorization • Encryption of content • Key Management System

  20. MBMS Security Architecture • Traffic Protection • Streaming using RTP/SRTP • Data downloads using FLUTE Ref: 3GPP 33.246 • User Authentication & Authorization • Using HTTP Digest • User Authentication & Authorization • GAA / GBA used for key agreement • Distribution through MIKEY

  21. Service Purchase & Protection(SPP) for DVB-H Device Based SIM based

  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. OSF Approach Control Word (CW) KDA KMS Device Agent Encoder + Scrambler IPE Modulator ECMsEMMs CA Applet CA Control System ECM: Entitlement Control Message EMM: Entitlement Management Message KMS: Key Management System Adopted from Irdeto Presentation Material

  24. OMA BCAST Approach Encoder + Scrambler BCAST Client IPE Modulator STKM BCAST SIM LTKM BCAST Server STKM: Short-term Key Message LTKM: Long-term Key Message Adopted from Irdeto Presentation Material

  25. Conclusion • Challenge for standardization to achieve global interoperability • Challenge for the operators is to select the right technology mix to delight the customer

More Related