Technology focus on Multimedia Applications and services

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Technology focus on Multimedia Applications
and services
Market-provensince 1996
Alex Shtein
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Topics for this presentation

• Indentify the main multi-media applications in
  the fixed-line and mobile telecom market
• Provide a description of the main
  media-processing related challenges for each of
  the above applications

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Target Markets applications

• Target markets and applications are divided into
  4 Segments
• Segment 1 Telecom multi-media applications and
  services in IMS/NGN
• Segment 2 IMS/NGN infrastructure
• Segment 3 Enterprise Telephony
• Segment 4 Over-the-top (OTT) rich content
  adaptation and streaming

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Segment 1 Telecom Multi-media applications

• There are 4 main applications in the telecom
  space
• All 4 are relevant for fixed and mobile telephony
• Interactive voice and video response (IVVR),
  implementing
• Mobile banking, Video dating, Adult
  entertainment, etc.
• Wide band telephony
• Video/voice conferencing bridge
• Video mail/messaging

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IVVR

• Main challenges
• Various video content in different formats
  requires transcoding
• from any to any codec
• Support for H.263, MPEG4
• H.264 is becoming dominant
• Handle resolutions of up to VGA/D1 in the input
  (720576)
• Video quality, interoperability and robustness
• Need to be able to optimize video quality
  especially at low bitrates
• Support for in-band I-frame requests (relevant
  RFCs)
• Interoperability with hundreds of mobile and
  fixed phones
• Low latency from key stroke till change of
  appearance on the phone
• Running 3G-324M layer and transcoding layer on
  the same sub-system
• Fast switching of video contents without waiting
  for I-frames
• Support fixed IP and mobile 3G-324M on the same
  platform
• In ATCA, need to support iTDM for TDM transfer
• Support for advanced video features
• Scrolling text, multiple overlays at multiple
  languages
• Logos, bitmaps, lines insertions with
  transparency (Alpha blending)
• 3G-324M over an IP transport for easy interface
  with IP based MSC

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Wideband Telephony

• Main challenges
• High density transcoding for wideband codecs
• For example, AAC-LC needs 10 time more resources
  then G.729
• Wideband codec support
• G.722.2 (WB-AMR), AAC-LC
• G.711.1 will become important
• Wideband conferencing optimize voice quality
• Voice mixer needs to handle wideband inputs at
  various sampling ratesy
• Interoperability and interworking between
  wideband devices and narrow band devices

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Video Conferencing

• Main challenges
• Bridge between various types of endpoints (soft
  clients, desktop, Mobile phones, MS Messenger,
  Skype..) with diverse codecs and resolutions
• Resolutions from SQCIF to VGA
• Resizing from any device to any device
• Support various transport layers (RTP, 3G-324M)
• 3G phones and fixed (RTP) connected to the same
  bridge
• Split screens, multiple layouts from the same
  conference
• Different participants will view different
  layouts in same conference
• Layouts change based on dominant speaker change
• Rich layout support
• Backgrounds and foregrounds
• Drawing lines
• Text overlays for participant identification
• Large amount of participants per conference
• Need to decode dozens of video sources ?
  distributed conference

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Video Mail

• Main challenges
• Record in one format, play in another format
  (transcoding)
• Resolution adjustment, transport adjustment
  (3G-324M?RTP)
• Generate I-frames so that recorded message starts
  with an I-frame
• Diverse resolutions and codecs (from VGA/D1 to
  QCIF phones) ? high quality rescaling
• Audio-video synchronization

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Segment 2 IMS/NGN infrastructure

• There are 3 main IMS/NGN components that are
  involving multi-media processing
• Media gateway (MGW)
• 3G to IP video gateway
• Voice gateway
• Session Boarder Controller (SBC)
• Media server Media resource function (MRF/MRFP)

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IMS Infrastructure Media Gateway

• Main challenges
• Field hardened
• With top class echo canceller, T.38,
  interoperable
• Voice quality at harsh network conditions
• High density
• Need iTDM for ATCA, uTCA
• Low power and low footpring per port
• Rich codec support
• Fixed and mobile codecs
• Narrowband and wideband codecs
• Simultaneous voice and video support
• Voice TDM?RTP
• Video 3G-324M?RTP

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IMS Infrastructure SBC

• Main challenges
• Packet to packet architecture (not the TDM?IP
  based architecture of legacy telephony boards)
• Voice/video transcoding
• Codec A ?? codec B
• RTP framesize A ?? framesize B
• IPv4 ?? IPv6
• Wideband codec ?? narrowband codec
• High density
• Number of concurrent sessions
• Number of new calls per second (CPS)
• Security
• SRTP/AES
• Use the same box for other IMS infrastructure
  (MRF, MGW)

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IMS Infrastructure MRF/MRFP

• Main challenges
• High density and bottleneck-free architecture
  (move away from the TDM based architecture of
  legacy boards)
• High call-per-second (CPS) score. At least 100
  per board for a 10 second call duration.
• Multiple services including voice/video,
  streaming, conferencing
• Support for distributed conferencing at least
  1000 voice participants on the same bridge

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Segment 3 Enterprise telephony

• Next generation IP-PBX
• First generation PBX supported PSTN
• Second generation PBX integrated an external
  VoIP gateway to the PBX
• Third generation PBX was an integration of the
  VoIP and PSTN in one box (IP-PBX)
• Forth generation PBX is an integration of all
  multi-media services into the IP-PBX, including
• Video IVVR
• Video conferencing
• Video mail

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Multi-Media IP-PBX

• Main challenges
• Low cost per port / high functionality
• Integration of VoIP services
• VoIP gateway,
• Fax server, Internet aware fax
• Conferencing bridge,
• Analog modem backup connection,
• Voice mail
• Integration of Multi-media services
• Video mail
• Video conferencing bridge
• Video IVR (IVVR)

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Segment 4 Over The Top (OTT) rich content
adaptation and streaming

• Focused around rich content (video) IP streaming
  to mobile phones and PCs connected to mobile
  internet
• Various applications, including
• LiveTV to mobile
• Mobile Video on demand (VoD)
• Streaming of web content to the mobile
  (web-to-mobile)
• Streaming of web content to mobile internet
  (web-to-web)
• Video Advertisements injection

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Mobile TV Other Streaming Video Services

• Main challenges
• Optimize Video quality, and quality of experience
  (QoE)
• Video streaming with on-the-fly bitrate
  adaptation ? adapt to each devices variable
  network connection quality
• Transcoding/repurposing content from web to
  mobile
• Flash(FLV), H.264 older codecs (VP6, Sorenson)
• RTSP streaming and progressing download
• Enable service personalization
• Advertisement injection
• Logo, scrolling text, transparency (Alpha
  blending)
• Support high resolutions in the Input
• For example YouTube stores content at high
  quality (VGA, D1)
• Support high resolutions in the Output
• Relevant when streaming to laptops connected to
  mobile Internet.
• Requires support for resolutions up to VGA in the
  output
• Cable to mobile
• Support for Mpeg2 Transport stream (MP2TS)
• Support for AAC codec

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Thank You