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3GPP2 Circuit-Switched Video Conferencing & Packet-Switched Video Telephony Services Overview

3GPP2 Circuit-Switched Video Conferencing & Packet-Switched Video Telephony Services Overview. Scott Droste Chair, TSG-C WG1 Applications & Services Motorola ( scott.droste@motorola.com ). 04 December 2006 Maui, HI USA. Presentation Overview.

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3GPP2 Circuit-Switched Video Conferencing & Packet-Switched Video Telephony Services Overview

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  1. 3GPP2 Circuit-Switched Video Conferencing & Packet-Switched Video Telephony Services Overview Scott DrosteChair, TSG-C WG1 Applications & ServicesMotorola (scott.droste@motorola.com) 04 December 2006 Maui, HI USA

  2. Presentation Overview • Development of video conferencing and telephony specifications within 3GPP2 • 3GPP2 Circuit-Switched Video Conferencing Service – C.S0042-0 • 3GPP2 Packet Switched Video Telephony Services (PSVT/MCS) – C.P0055-0

  3. Video Conferencing & Telephony Specification Development within 3GPP2

  4. TSG-C WG1 Structure 3GPP2 video conferencing and telephony service specifications developed by TSG-C SWG1.2

  5. 3GPP2 Video Conferencing and Telephony Specifications

  6. 3GPP2 Development Timeline

  7. 3GPP2 Circuit-Switched Video Conferencing ServiceC.S0042-0

  8. CS Video Conferencing Overview • C.S0042-0 defines video conferencing SO 57 & 58 at 32 and 64 kbps, respectively, over the air interface (carried in RLP) • ITU-T H.324 (Terminal for Low Bitrate Multimedia Communication) with Annex C used for video conferencing • ITU-T H.245 (Control Protocol for Multimedia Communication) version 7 (or greater) used for capability negotiation between terminals • ITU-T H.223 (Multiplexing Protocol for Low Bitrate Multimedia Communication)with Annex A & B used formultiplexing video, audio,and application layercontrol data

  9. CS Video Conferencing Service Configuration Attributes

  10. CS Video Conferencing Protocol Stack Video Conferencing Call Setup and Bearer Protocol Stack

  11. CS Video Conferencing Codec Support

  12. CS Video Conferencing Call Setup

  13. CS Video ConferencingAdditional Capabilities • Supports video conferencing with 3GPP-324M terminals • SO 58 (64 kbps service) invoked over cdma2000 channel • IWF acts as gateway for video conferencing negotiation and control messages and EVRC to 3GPP-AMR speech transcoding

  14. 3GPP2 Packet Switched Video Telephony Services (PSVT/MCS) C.P0055-0

  15. Packet Switched Video Teleconferencing (PSVT) Overview • C.P0055-0 defines support for one-to-one conversational video services on 3GPP2 networks between: • Two mobile terminals • A mobile terminal and a video terminal on the Internet • Defines minimum requirements to ensure interoperability within 3GPP2 networks as well as optional capabilities and feature support to enable interoperability across other networks and technologies • Uses IETF AVPF packet loss feedback for providing dynamic error resiliency for video. Feedback enables encoder to adaptively insert redundancy (intra-refresh) in the video stream as needed to stop propagation of packet loss errors • Defines FlowProfileID parameter for SDP to enable more efficient negotiation of RAN QoS resources. Allows the two terminals to better coordinate E2E QoS. • Defines optimized procedures for establishing RAN QoS when multiple codecs are supported in the terminals. • Support defined for 3GPP2 IMS and 3GPP2 non-IMS networks

  16. PSVT Network Reference Model Network Reference Model for Non-roaming Mobile-to-Mobile PSVT Call

  17. PSVT IMS Network Reference Model Network Reference Model for Non-roaming Mobile-to-Mobile PSVT Call over IMS

  18. PSVT RAN and PDSN Protocol Stacks Protocol Stack when HDLC framing is applied Protocol Stack when segment-based framing is applied

  19. PS Video Telephony Codec Support Other speech codecs, although not specified by C.P0055-0, are allowed and supported through SIP SDP negotiation between endpoints

  20. PSVT Protocol Stacks over IP

  21. PSVT Feature Initialization • Feature Initialization occurs prior to PSVT call origination or termination. • Initialization tasks: • Configure & activate QoS for transporting SIP traffic • Configure QoS for transporting voice & video traffic • Configure QoS for transporting RTCP packets for voice & video streams. • Negotiate ROHC parameters for compressing the voice and video traffic • SIP Proxy or IMS core network P-CSCF registration

  22. PSVT Call Setup

  23. PSVT Call Release

  24. PSVT In-Call Media Management C.P0055-0 defines SIP-based mechanisms for: • Adding Bi-Directional Video to a VoIP Call • Removing Bi-Directional Video from a PSVT Call • User-Initiated Removal of Video from a PSVT Call • Network-Initiated Removal of Video from a PSVT Call

  25. PSVT Supplementary Services & Functions C.P0055-0 defines support for the following optional services & functions: • PSVT Voice Retry • Retry PSVT Call Origination as VoIP • Retry PSVT Call Reception as VoIP • Retry PSVT Call Origination as 1x Circuit-Switched Voice • Retry PSVT Call Reception as 1x Circuit-Switched Voice • Video/Media on Hold

  26. C.P0055-0 PSVT Development Status • C.P0055-0 V&V Comment Resolution occurring this meeting cycle • Anticipate TSG-C approval for publication at end of this meeting or in January 2007

  27. Thank You For more information, please contact: WG1 – Applications & Services Scott Droste (scott.droste@motorola.com) SWG1.2 – Multimedia Services Keith Miller (keith.miller@nokia.com)

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