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Atheros 802.11n Solutions

Atheros 802.11n Solutions. January 2006. Agenda. Market Requirements The Power of 3 Product Details Standardization Update. Market Requirements. Increasing WLAN Requirements. In the beginning, there was a computer in the home… Now, everyone in the family has their own…

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Atheros 802.11n Solutions

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  1. Atheros 802.11n Solutions January 2006

  2. Agenda • Market Requirements • The Power of 3 • Product Details • Standardization Update

  3. Market Requirements

  4. Increasing WLAN Requirements In the beginning, there was a computer in the home… Now, everyonein the family has their own… WIRELESS REQUIREMENT: Sharing the broadband subscription Can be effectivewith 54 Mbps if the data is simple, low priority traffic Web surfing Internet connectivity

  5. Increasing WLAN Requirements With everyone in the family having their own computer and the increased availability of digital media, the next level is Sharing Content This includes apps such as wireless printing, sharing and storing photos, transferring audio and video files WIRELESS REQUIREMENT: 54 Mbps 802.11 a or g are still adequate, although performance enhancements like 108 Mbps Super G/AG, speed all processes for a better user experience. Wireless printing Web surfing Music downloads File sharing Internet connectivity

  6. Increasing WLAN Requirements Enter real-time applications: PVRs sending multiple streams of video throughout the home, VoIP, devices downloading and transmitting HD video files and real-time gaming… simultaneously. WIRELESS REQUIREMENTS: Wire-like speeds uninterrupted during transmissions or conversations. Reliable Coverage at real throughput rates of 100Mbps or more. PVR TV streaming Wireless printing Music downloads Web surfing File sharing File sharing VoIP phone PVR TV streaming Internet connectivity WiFi PDA Internet gaming

  7. Atheros Response to Market Requirements…. • Atheros’ 802.11n solution brings the WLAN user experience closer to that of the wired network • PHY rates exceeding fast ethernet • Consistent, reliable throughput • Multi-vendor interoperability Achieved only with The Power of 3

  8. The Power of 3

  9. Introducing the World’s First Three-Radio Chip AR5133 • 3 embedded 2.4 & 5.0 GHz radios • 20MHz and 40MHz channels • 300Mbps PHY rate

  10. AR5133 • 3 embedded 2.4/5.0 GHz radios • 20MHz and 40MHz channels • 300Mbps PHY rate AR5416 • MAC and BB • MRC & spatial multiplexing • Two concurrent data streams • Legacy 802.11a/b/g support Atheros 802.11n Two-Chip Solution

  11. +62% The Power of 3: Best Rate over Range Downlink Throughput: 3x3 vs 2x2 AP to Client +44% 300 250 200 150 100 50 0 266 185 +51% PHY Rate 136 3x3 2 streams 2x2 2 streams 90 89 55 50 feet 100 feet 150 feet Distance

  12. 4000 sq ft home Testing the Power of 3 4000 square foot home: Acid test for the power of 3x3 over 2x2

  13. DOWNLINK 4000 sq ft home Downlink Performance with 2x2 2x2 185 90 55 3x3 266 136 89 %Δ +44% +51% +62% 50 ft 100 ft 150 ft 300 Mbpsdata rate DOWNLINK

  14. DOWNLINK 4000 sq ft home Best Downlink Performance with 3x3 In The Home 3x3, 40 MHz maximizes throughput across even large home environments 2x2 185 90 55 3x3 266 136 89 %Δ +44% +51% +62% 50 ft 100 ft 150 ft 300 Mbpsdata rate +44% throughput +51% throughput DOWNLINK

  15. DOWNLINK 4000 sq ft home 3x3 Coverage Extends Into Backyard 2x2 185 90 55 3x3 266 136 89 %Δ +44% +51% +62% 50 ft 100 ft 150 ft 300 Mbpsdata rate +44% throughput +51% throughput +62% throughput DOWNLINK DOWNLINK

  16. The Power of 3 Uplink Throughput: 2x3 vs. 2x2 Client to AP +40% 200 180 160 140 120 100 80 60 40 20 0 182 130 +32% PHY Rate 79 2x3 2 streams 2x2 2 streams +37% 60 41 30 50 feet 100 feet 150 feet Distance

  17. Large gap in performancefor 2x2 -> 3x3 Third Party Confirmation of 3x3 Versus 2x2 Benefits Data rate vs. SNR (40 MHz) 300 3x3-40, 2 stream 250 2x2-40, 2 stream 200 150 Over the Air Throughput (Mbps) 100 50 0 0 5 10 15 20 25 30 35 SNR (dB) Source: Intel

  18. The Power of 3: Maintaining Two Streams Probability of two stream transmission is greater with 3x3

  19. Product Details

  20. 2005 Atheros Spatial Multiplexing 11n Product Family, Pending final IEEE spec determination 2005 2003 2000 2002 Atheros AR5005VL chip for video & data applications launched with MF/RC 5.0 GHz ultimately enables dual-band when combined with 2.4 GHz Super G launched highest 802.11 data rates to date with 40 MHz channels, packet bursting, packet aggregation Atheros launches first 2.4/5.0 GHz band chipset Atheros: Experience with 802.11n Technologies

  21. Time-to-Market: 802.11n Radio • Radios have been undergoing in-house testing for ~3 months • Thoroughly tested in stand-alone and FPGA emulation environments • Joint testing with MAC/BB silicon in progress • No issues found on first silicon, potentially production worthy

  22. Time-to-Market: 802.11n MAC/BB • MAC/BB in-house • Basic functionality has been checked • 2x2 and 3x3 chains, single and dual streams, 20 and 40MHz channels • Emulation testing before tape-out is a contributing factor to positive progress on first silicon PCI PCI-Express

  23. 802.11n Client Roadmap – 2.4GHz Next Gen Silicon Under definition AR5416 AR2133 AR5418 AR2133 2x3 PCI PCI-Express EWC Compliant Next Gen Silicon Under definition AR5513 AR2112 AR2112 AR5416 AR2122 AR5418 AR2122 2x2 PCI PCI-Express Shipping 2H 2006 Q1 2006

  24. 802.11n Client Roadmap – 2.4/5GHz Next Gen Silicon Under definition AR5416 AR5133 AR5418 AR5133 2x3 PCI PCI-Express EWC Compliant Next Gen Silicon Under definition AR5513 AR5112 AR5112 AR5416 AR5122 AR5418 AR5122 2x2 PCI PCI-Express Shipping 2H 2006 Q1 2006

  25. 802.11n Client Reference Design Roadmap 2.4GHz 2.4/5GHz 2x3 2.4GHz De-pop option of 2x3 2.4/5GHz De-pop option of 2x3 2x2 Q1 2006 Q2 2006

  26. 802.11n AP/Router Roadmap – 2.4GHz Next Gen Silicon Under definition AR7100 AR5416 AR2133 3x3 EWC Compliant AR5513 AR2112 AR2112 Next Gen Silicon Under definition AR7100 AR5416 AR2122 2x2 2H 2006 Shipping Q1 2006

  27. 802.11n AP/Router Roadmap – 2.4/5GHz Next Gen Silicon Under definition AR7100 AR5416 AR5133 3x3 EWC Compliant AR5513 AR5112 AR5112 Next Gen Silicon Under definition AR7100 AR5416 AR5122 2x2 2H 2006 Shipping Q1 2006

  28. 802.11n Router Reference Design Roadmap 2.4GHz 2.4/5GHz 3x3 2.4GHz De-pop option of 3x3 2.4/5GHz De-pop option of 3x3 2x2 Q1 2006 Q2 2006

  29. Reference Designs • 3x3 802.11b/g/n AP/Router 2x3 802.11b/g/n Cardbus client 2x3 802.11b/g/n Minicard client

  30. Early Software Development • Driver code complete • All 11n features are code complete • Actual driver code running on 802.11n silicon • Passing bi-directional 11n traffic • Low risk software development path • Software development completed BEFORE tape-out • Driver fully tested on 802.11n emulation platform • Only bring-up and testing on silicon remains

  31. 802.11n Software Roadmap 6.0 Release • Based on 5.0 release • Linux 2.6 • 11n 300Mbps • 20/40MHz • 11n Aggregation • 11n UI upgrades • WMM • WPA-Personal 6.1 Release • Based on 5.1 release • Linux 2.6 • mBSSID • WDS • WPA-Enterprise AP 6.0 Release • Based on 4.2 release • NDIS 5.1 (XP-32/2K) • 11n 300Mbps • 20/40MHz • 11n Aggregation • 11n UI upgrades • WMM • WPA-Personal 6.1 Release • Based on 5.0 release • NDIS 5.1 (XP-32/2K) • CCXv4.0 • WPA-Enterprise • WoW • ACAU • Legacy Ad Hoc STA Q1 2006 Q2 2006 Q3 2006

  32. Summary • Increasing demands on WLAN experience • High throughput (100Mbps) with reliable coverage throughout the home • Atheros’ 802.11n will provide the best performance with 3x3 • World’s first 3-radio chip • Offering ~50% performance improvement • Providing reliable coverage throughout even large homes • Atheros will be first to market with an EWC compliant solution

  33. Standardization Update

  34. EWC: Special Interest Group (“SIG”) for 802.11n • Atheros 802.11n solution is EWC-compliant • Successful launch on Oct 10, 2005 • Well received by the market • Driving adoption of next-generation high performance WLAN solutions • Establishing interoperable 11n solutions within the market • Current membership stands at 49 companies • Participants from both TGn Sync and WWiSE groups • Cross industry players: Semiconductors, PC OEMs, Enterprise, Retail and CE

  35. PC OEM Retail ConsumerElectronics Enterprise EWC – Industry-wide Support

  36. EWC – Organization • Main charter • Accelerate the IEEE 802.11n process • Develop and promote a technology specification for interoperability of next generation WLAN products • Accelerate 802.11n • IEEE strategy sub-group • Drive interoperability • Interoperability sub-group • Paul Petrus (Atheros) is co-chair of this group • Responsible for creating the interoperability test plan and driving its adoption in the Wi-Fi Alliance

  37. EWC – Key Technical Highlights • PHY transmission rates up to 600Mbps • Enhanced efficiency MAC with frame aggregation • Brings actual throughput closer to the raw PHY rate • 2.4/5GHz dual band support • 20/40MHz channel support • Mixed mode interoperability with 802.11a/b/g networks • Enhanced performance while maintaining compatibility with legacy devices • Spatial multiplexing • Support for 1 to 4 concurrent data streams

  38. Latest Progress At IEEE • Joint Proposal (JP) group formed to force a compromise spec between TGn Sync and WWiSE • Portions of the EWC spec have been introduced and adopted by the JP • IEEE confirmation vote for first draft will take place on next Thursday (1/19) • EWC expected to get 75% majority need to be adopted as the first draft 802.11n spec • Vote taken in JP on 1/11 as to whether to recommend the EWC spec for the confirmation vote • Landslide victory for EWC within the JP • Yes: 40, No: 0, Abstentions: 2

  39. Thank You

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