Next Generation Access Technologies


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Originally presented by Hitachi at the 2009 Broadband Properties Summit in Dallas, Texas.

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Next Generation Access Technologies

  1. 1. Next Generation Access Technologies Broadband Properties Summit April 28, 2009
  2. 2. <ul><li>High Speed Data: What you’re doing today, but more of it </li></ul><ul><ul><li>100Mbps bi-directional already standard in Asia </li></ul></ul><ul><ul><li>50Mbps tiers already available in North America </li></ul></ul><ul><ul><li>Rising popularity of user-generated video </li></ul></ul><ul><ul><li>Increased resolution of digital photography (photo sharing) </li></ul></ul><ul><ul><li>Remote services (backup, on-line applications, etc.) </li></ul></ul><ul><ul><li>Video conferencing and video streaming </li></ul></ul>Why do we need Next Generation Access Technologies?
  3. 3. <ul><li>Video: IPTV </li></ul><ul><ul><li>Successfully deployed throughout Europe </li></ul></ul><ul><ul><li>Gaining acceptance in North America </li></ul></ul><ul><ul><li>Multiple HD TVs in the home </li></ul></ul><ul><ul><li>More HD channels, more long tail content </li></ul></ul><ul><ul><li>More unicast demand (VoD, Network PVR) </li></ul></ul><ul><ul><li>HD Picture-in-Picture and trick modes create two to three times the bandwidth demand </li></ul></ul><ul><ul><li>Interactive television applications (e.g. Blu-Ray 2.0) </li></ul></ul>Why do we need Next Generation Access Technologies?
  4. 4. <ul><li>New Applications </li></ul><ul><ul><li>3 dimensional television technologies have been demonstrated (double the HD bandwidth requirement - minimum) </li></ul></ul><ul><ul><li>Multi-channel DVR chipsets have already been demonstrated: Every Channel DVR (EV/DVR) </li></ul></ul><ul><ul><ul><li>Up to 100+ HD channels simultaneously </li></ul></ul></ul><ul><ul><li>Applications not yet imagined </li></ul></ul>Why do we need Next Generation Access Technologies?
  5. 5. <ul><li>In the future, homes will require several Mbps to Gbps of bandwidth </li></ul><ul><li>The only medium that can meet this demand is fiber optics </li></ul><ul><li>Fiber access technologies are mature and are advancing in speed regularly </li></ul><ul><li>The biggest question is not “Why?”, but “When?” </li></ul>It’s Going to be Fiber
  6. 6. 10G Passive Optical Networks <ul><li>The standards bodies have agreed that 10G PON is the next step in PON evolution </li></ul><ul><ul><li>Capitalizes on existing Ethernet and SONET technologies </li></ul></ul><ul><ul><li>Allows bursts in excess of 2.4Gbps </li></ul></ul><ul><ul><li>More efficient use of multicast/broadcast bandwidth </li></ul></ul><ul><ul><li>Smaller/lower power potential than multi-wavelength solutions </li></ul></ul><ul><li>Both major standards bodies are working to ensure compatibility with existing PON </li></ul><ul><ul><li>New wavelength plans do not overlap with existing plans </li></ul></ul><ul><ul><li>Current ONTs can already implement wavelength blocking based on early IEEE and FSAN work </li></ul></ul>
  7. 7. PON: Standards Bodies <ul><li>From the folks that brought you EPON </li></ul><ul><li>Data-centric </li></ul><ul><li>Generally focus on physical layer and engineering design </li></ul><ul><li>Produce workable standards quickly </li></ul><ul><li>Largely an equipment / chip vendor community </li></ul><ul><li>From the folks that brought you GPON </li></ul><ul><li>Telecommunications focus </li></ul><ul><li>Attempt to standardize all of the layers from physical through management </li></ul><ul><li>Produce thorough standards slowly </li></ul><ul><li>Driven by the carriers with vendor participation </li></ul>IEEE FSAN / ITU
  8. 8. <ul><li>Status </li></ul><ul><ul><li>Physical layer complete (wavelengths, etc.) </li></ul></ul><ul><ul><li>Remaining sections largely complete </li></ul></ul><ul><ul><li>Chipsets available in early form now, final form in early 2010 </li></ul></ul><ul><li>Speed </li></ul><ul><ul><li>10Gbps downstream </li></ul></ul><ul><ul><li>1Gbps or 10Gbps upstream </li></ul></ul>IEEE NG PON (802.3av)
  9. 9. <ul><li>Status: </li></ul><ul><ul><li>Progress being made on the physical and coding layers </li></ul></ul><ul><ul><li>Much of the higher layers still being debates </li></ul></ul><ul><ul><li>Standardization expected to complete in 2010 or early 2011 </li></ul></ul><ul><li>Speed: </li></ul><ul><ul><li>10G downstream </li></ul></ul><ul><ul><li>1.25G, 2.5G, and 10G upstream options </li></ul></ul>ITU NG PON (FSAN NGA1)
  10. 10. WDM PON <ul><li>Popular in Korea, some initial forays into the U.S. </li></ul><ul><li>Business case in the U.S. is as a logical point-to-point for enterprise customers </li></ul><ul><li>WDM PON is not currently being considered by either the IEEE or FSAN/ITU NGA1 </li></ul>
  11. 11. WDM PON <ul><li>Multiple downstream wavelengths: one to every ONT or to groups of ONTs </li></ul><ul><li>One or more upstream wavelengths: shared or per ONT </li></ul><ul><li>A logical point-to-point network </li></ul>OLT Optics Tx Tx Tx Tx Wavelength Splitter Field Optics ONT  D1  U1 ONT ONT  D3  U3 ONT  D32  U32 CO Rx Rx Rx Rx
  12. 12. When? <ul><li>The standards bodies are focusing on the access line </li></ul><ul><li>Other technological advances will be required upstream </li></ul><ul><ul><li>Interface card capacities increased by a factor of 4 </li></ul></ul><ul><ul><li>Backplane capacity increased by an order of magnitude </li></ul></ul><ul><ul><li>Switch chip capacity hugely increased </li></ul></ul><ul><ul><li>Upstream interfaces migrate from GbE to multiple 10GbEs per CO / switch </li></ul></ul><ul><ul><li>Faster processing, memory, QoS marking, etc. </li></ul></ul><ul><ul><li>Upstream network impact: ROADM, wavelengths, interfaces, core routers, etc. </li></ul></ul><ul><li>Additional external pressures make the job more challenging </li></ul><ul><ul><li>Lower cost </li></ul></ul><ul><ul><li>Less power consumption including coming ATIS energy efficiency standards </li></ul></ul><ul><ul><li>Smaller footprint </li></ul></ul><ul><li>The point: Don’t expect a massive upgrade to NG PON as soon as the standards complete </li></ul>
  13. 13. <ul><li>While waiting for NG PON, what should a developer deploy today? </li></ul><ul><li>Option 1: Current generation PON (GPON/EPON) </li></ul><ul><ul><li>Current generation PON has plenty of bandwidth for most applications today </li></ul></ul><ul><ul><li>The fiber infrastructure deployed today will work with NG PON </li></ul></ul><ul><li>Option 2: RFoG </li></ul><ul><ul><li>Deploy fiber with an RF headend </li></ul></ul><ul><ul><li>Allows a fiber infrastructure to be deployed without spending capital on headend upgrades </li></ul></ul><ul><li>Conclusion: Deploy fiber today and you will not regret it in the future </li></ul>Interim Steps
  14. 14. <ul><li>Thank You </li></ul><ul><li>Scott T. Wilkinson </li></ul><ul><li>VP, Product Management and Systems Engineering </li></ul><ul><li>Hitachi Communication Technologies America, Inc. </li></ul><ul><li>[email_address] </li></ul>