2. C00-20001204-015_LGE_Mobile Video Title : Unequal Protected Video Coding Abstract : This contribution presents a robust dual-priority video partitioning method suitable for twin-class unequal protected video transmission over wireless channels. Source :B.K YiY.J Song LGE Inc. LGE Inc. bkyi@lginfocomm.com yjsong@lginfocomm.combkyi@lginfocomm.comyjsong@lginfocomm.com Date : December 04, 2000 Recommendation : Discussion for 1xEV-DV Notice © 2000 LGE Incorporated. All rights reserved. The information contained in this contribution is provided for the sole purpose of promoting discussion within the 3GPP2 and its Organization Partners and is not binding on the contributor. The contributor reserves the right to add to, amend, or withdraw the statements contained herein. LGE Incorporated grants a free, irrevocable license to 3GPP2 and its Organization Partners to incorporate text or other copyrightable material contained in the contribution and any modifications thereof in the creation of 3GPP2 publications; to copyright and sell in Organizational Partner ’ s name any Organizational Partner ’ s standards publication even though it may include portions of the contribution; and at the Organization Partner ’ s sole discretion to permit others to reproduce in whole or in part such contributions or the resulting Organizational Partner ’ s standards publication.The contributor may hold one or more patents or copyrights that cover information contained in this contribution. A license will be made available to applicants under reasonable terms and conditions that are demonstrably free of any unfair discrimination. Nothing contained herein shall be construed as conferring by implication, estoppel, or otherwise any license or right under any patent, whether or not the use of information herein necessarily employs an invention of any existing or later issued patent, or copyright. The contributor reserves the right to use all material submitted in this contribution for his own purposes, including republication and distribution to others.

3. C00-20001204-015_LGE_Mobile Video 3G SYSTEMS n n Better quality and coverage n n More power and greater bandwidth n n Deployment in diverse environments. These make video transmission possible for a number of applications such as video conferencing, emergency medical services, and site surveys.

4. C00-20001204-015_LGE_Mobile Video CDMA-2000 n Supports chip rates of Nx1.2288 Mcps N= 1,3,6,9, 12 (N=1 for IS-95)N= 1,3,6,9, 12 (N=1 for IS-95) N>1N>1 1.25 MHz 3 dB N=1 Chip rate=1.2288 Mcps Chip rate=3.6864 Mcps 5 MHz N=3

5. C00-20001204-015_LGE_Mobile Video CDMA-2000 Demo

6. C00-20001204-015_LGE_Mobile Video MOBILE VIDEO As most video compression standards have been developed for relatively error free environments, they cannot be directly transferred to a hostile mobile domain. key issues 1. Protecting highly error sensitive video information against multipath fading effects 2. Compatibility with the existing standards

7. C00-20001204-015_LGE_Mobile Video UNEQUAL ERROR PROTECTION n Depending on the perceptional significance as well as error sensitivity of the source, its data can be partitioned into a number of priority classes. Each partitioned data can then be transported within with a differing level of error protection.

8. C00-20001204-015_LGE_Mobile Video Multi-Priority Transmission Model Our main focus has been to develop multi-priority transmission systems for digital video applications. n Transmission Systems: Wideband CDMA (W-CDMA) Wideband CDMA (W-CDMA) CDMA-2000CDMA-2000 HCSD & GPRSHCSD & GPRS n Video coding standards: ITU-T H.263ITU-T H.263 MPEG-2MPEG-2

9. C00-20001204-015_LGE_Mobile Video Video Partitioning DataSplitterDataSplitter WCDMA Channel DataAssem. H.263VideoEncoderH.263VideoEncoder BS R = Bitrate (fixed) S = Splitting Percentage Rate CODEC INDEPENDENT H.263VideoDecoderH.263VideoDecoder MS MUX DEMUX

10. C00-20001204-015_LGE_Mobile Video Post Encoder Stream-1 Stream-2 EntropyDecoder H.263Videostream AdaptiveSplitterAdaptiveSplitter BufferManagementControlBufferManagementControl BufferBuffer BufferBuffer

11. C00-20001204-015_LGE_Mobile Video Pre-Decoder Stream-1 Stream-2 ErrorDetection&Re-synch.ErrorDetection&Re-synch. ErrorConcealmentErrorConcealment BufferBuffer BufferBuffer Cutoff_valueExtractorCutoff_valueExtractor HeaderExtractorHeaderExtractor Timing&AlignmentTiming&Alignment LegalH.263Videostream HeaderExtractorHeaderExtractor

12. Audio & Video Multiplexing The audio and video must be synchronized within certain limits to provide “lip-synch” which is the synchronization of the speaker's lips with the words being heard by the end user). Multiplexing audio and video in circuit switching can be accomplished with greater flexibility compared with packet switching.

13. C00-20001204-015_LGE_Mobile Video Priority Multiplexing n n It would be more desirable for audio to have a higher priority than video. n n Since our technology is based on generating two streams for CBR video, the audio is multiplexed with the higher priority video. n n Based on ITU-T H.234 videophone terminal, a 6.3 kb/s speech coder specified in G.723.1, will be used.

14. C00-20001204-015_LGE_Mobile Video UN-Equal Error Protection

15. C00-20001204-015_LGE_Mobile Video