Atheros Confidential Atheros 802.11n Solutions January 2006.

Atheros Confidential

Atheros 802.11n Solutions

January 2006


AgendaAgenda

Market Requirements

The Power of 3

Product Details

Standardization Update


Market Requirements


Increasing WLAN RequirementsIncreasing WLAN Requirements

Web surfing

Internet connectivity

In the beginning, there was a computer in the home…

Now, everyonein the family has their own…

WIRELESS REQUIREMENT:Sharing the broadbandsubscription

Can be effectivewith 54 Mbps if the data is simple, low priority traffic



Wireless printing

Web surfing


Music downloadsFile sharing

With everyone in the family having their own computer and the increased availability of digital media, the next level isSharing Content

This includes appssuch as wireless printing, sharing and storing photos,transferring audioand 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.



Web surfing


Music downloads

PVR TV streaming

PVR TV streaming

Internet gaming

Wireless printing

File sharing

File sharing

VoIP phone

WiFi PDA

Enter real-time applications: PVRs sendingmultiple 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 duringtransmissionsor conversations.

Reliable Coverageat real throughput rates of 100Mbps or more.


Atheros Response to Market Requirements….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


The Power of 3


Introducing the World’s First Three-Radio ChipIntroducing the World’s First Three-Radio Chip

3 embedded 2.4 & 5.0 GHz radios

20MHz and 40MHz channels

300Mbps PHY rate

AR5133


Atheros 802.11n Two-Chip SolutionAtheros 802.11n Two-Chip Solution

AR5416

MAC and BB MRC & spatial multiplexing

Two concurrent data streams

Legacy 802.11a/b/g support

AR5133

3 embedded 2.4/5.0 GHz radios

20MHz and 40MHz channels

300Mbps PHY rate


The Power of 3: Best Rate over RangeThe Power of 3: Best Rate over Range

+44%

+51% +62%

300

250

200

150

100

50

0

PH

Y R

ate

266

185

136

90 89

55

Distance

50 feet 100 feet 150 feet

3x3

2 s

trea

ms

2x2

2 s

trea

ms

3x3

2 s

trea

ms

2x2

2 s

trea

ms

Downlink Throughput: 3x3 vs 2x2 AP to Client


4000 sq ft home

Testing the Power of 3Testing the Power of 3

4000 square foot home: Acid test for the power of 3x3 over 2x2


4000 sq ft home

Downlink Performance with 2x2Downlink Performance with 2x2

3x3

266

136

89

2x2

185

90

55

%Δ

+44%

+51%

+62%

50 ft

100 ft

150 ft

DOWNLINK DOWNLINK

300 Mbpsdata rate


4000 sq ft home

Best Downlink Performance with 3x3 In The HomeBest Downlink Performance with 3x3 In The Home

3x3

266

136

89

2x2

185

90

55

%Δ

+44%

+51%

+62%

50 ft

100 ft

150 ft

DOWNLINK DOWNLINK

+51% throughput

+44% throughput

300 Mbpsdata rate

3x3, 40 MHz maximizes throughput across even large home environments


4000 sq ft home

3x3 Coverage Extends Into Backyard 3x3 Coverage Extends Into Backyard

3x3

266

136

89

2x2

185

90

55

%Δ

+44%

+51%

+62%

50 ft

100 ft

150 ft

DOWNLINK DOWNLINK DOWNLINK

+62% throughput

+51% throughput

+44% throughput

300 Mbpsdata rate


The Power of 3The Power of 3

+40%

+32%

+37%

200

180

160

140

120

100

80

60

40

20

0

PH

Y R

ate

182

130

7960

4130

Distance

50 feet 100 feet 150 feet

2x3

2 s

trea

ms

2x2

2 s

trea

ms

2x3

2 s

trea

ms

2x2

2 s

trea

ms

Uplink Throughput: 2x3 vs. 2x2 Client to AP


Third Party Confirmation of 3x3 Versus 2x2 BenefitsThird Party Confirmation of 3x3 Versus 2x2 Benefits

Data rate vs. SNR (40 MHz)

0

50

100

150

200

250

300

0 5 10 15 20 25 30 35

SNR (dB)

Ove

r th

e A

ir T

hro

ug

hp

ut

(Mb

ps) 3x3-40, 2 stream

2x2-40, 2 stream

Large gap in performancefor 2x2 -> 3x3

Source: Intel


The Power of 3: Maintaining Two StreamsThe Power of 3: Maintaining Two Streams

0

0.2

0.4

0.6

0.8

1

Pro

bab

ilit

y

32 50 110 175

Feet

2x2

Two Streams

One Stream

Probability of two stream transmission is greater with 3x3

00.20.40.60.8

1

Pro

bab

ility

46 50 110 175

Feet

3x3


Product Details


Atheros: Experience with 802.11n TechnologiesAtheros: Experience with 802.11n Technologies

Super G launched highest 802.11 data rates to date with40 MHz channels, packet bursting,packet aggregation

2003

Atheros launches first 2.4/5.0 GHzband chipset

2002

5.0 GHz ultimatelyenables dual-band when combined with 2.4 GHz

2000

Atheros AR5005VL chip for video & data applicationslaunched withMF/RC

2005

Atheros Spatial Multiplexing11n Product Family, Pending final IEEE spec determination

2005


Time-to-Market: 802.11n RadioTime-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

11n

Radio

2.4GHz 2.4/5GHz 2x2 2x3

3x3AR2133

AR5133

AR2122

AR5122


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

Time-to-Market: 802.11n MAC/BBTime-to-Market: 802.11n MAC/BB


802.11n Client Roadmap – 2.4GHz802.11n Client Roadmap – 2.4GHz

ShippingQ1 2006 2H 2006

2x3

2x2

AR5416AR2133

AR5416AR2122

AR5513

AR2112

AR2112

AR5418AR2133

AR5418AR2122

PCI PCI-Express

PCI PCI-Express

Next Gen SiliconUnder definition



802.11n Client Roadmap – 2.4/5GHz802.11n Client Roadmap – 2.4/5GHz

ShippingQ1 2006 2H 2006

2x3

2x2

AR5416AR5133

AR5416AR5122

AR5513

AR5112

AR5112

AR5418AR5133

AR5418AR5122

PCI PCI-Express

PCI PCI-Express




802.11n Client Reference Design Roadmap802.11n Client Reference Design Roadmap

Q1 2006 Q2 2006

2x3

2x2

2.4GHz

2.4GHzDe-pop option of 2x3

2.4/5GHzDe-pop option of 2x3

2.4/5GHz


802.11n AP/Router Roadmap – 2.4GHz802.11n AP/Router Roadmap – 2.4GHz

Shipping Q1 2006 2H 2006

3x3

2x2

AR5513

AR2112

AR2112

AR7100

AR5416

AR2122

AR7100

AR5416

AR2133




802.11n AP/Router Roadmap – 2.4/5GHz802.11n AP/Router Roadmap – 2.4/5GHz

Shipping Q1 2006 2H 2006

3x3

2x2

AR5513

AR5112

AR5112

AR7100

AR5416

AR5122

AR7100

AR5416

AR5133




802.11n Router Reference Design Roadmap802.11n Router Reference Design Roadmap

Q1 2006 Q2 2006

3x3

2x2

2.4GHzDe-pop option of 3x3

2.4GHz 2.4/5GHz

2.4/5GHzDe-pop option of 3x3


Reference DesignsReference Designs

3x3 802.11b/g/n AP/Router

2x3 802.11b/g/n Cardbus client

2x3 802.11b/g/n Minicard client


Early Software DevelopmentEarly 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


802.11n Software Roadmap802.11n Software Roadmap

Q1 2006 Q2 2006

AP

ST

A

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

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

Q3 2006


SummarySummary

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


Standardization Update


EWC: Special Interest Group (“SIG”) for 802.11nEWC: 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


EWC – Industry-wide SupportEWC – Industry-wide Support

EnterpriseEnterprise

RetailRetail

ConsumerElectronicsConsumerElectronics

PC OEMPC OEM


EWC – OrganizationEWC – 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


EWC – Key Technical HighlightsEWC – 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


Latest Progress At IEEELatest 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


Thank You

Atheros Confidential Atheros 802.11n Solutions January 2006.

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Transcript of Atheros Confidential Atheros 802.11n Solutions January 2006.