Atheros 802 11n solutions
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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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Atheros 802 11n solutions

Atheros 802.11n Solutions

January 2006


Agenda

Agenda

  • Market Requirements

  • The Power of 3

  • Product Details

  • Standardization Update


Market requirements

Market Requirements


Increasing wlan requirements

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


Increasing wlan requirements1

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


Increasing wlan requirements2

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


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

The Power of 3


Introducing the world s first three radio chip

Introducing the World’s First Three-Radio Chip

AR5133

  • 3 embedded 2.4 & 5.0 GHz radios

  • 20MHz and 40MHz channels

  • 300Mbps PHY rate


Atheros 802 11n two chip solution

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


The power of 3 best rate over range

+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


Testing the power of 3

4000 sq ft home

Testing the Power of 3

4000 square foot home:

Acid test for the power of 3x3 over 2x2


Downlink performance with 2x2

DOWNLINK

4000 sq ft home

Downlink Performance with 2x2

2x2

185

90

55

3x3

266

136

89

+44%

+51%

+62%

50 ft

100 ft

150 ft

300 Mbpsdata rate

DOWNLINK


Best downlink performance with 3x3 in the home

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

+44%

+51%

+62%

50 ft

100 ft

150 ft

300 Mbpsdata rate

+44% throughput

+51% throughput

DOWNLINK


3x3 coverage extends into backyard

DOWNLINK

4000 sq ft home

3x3 Coverage Extends Into Backyard

2x2

185

90

55

3x3

266

136

89

+44%

+51%

+62%

50 ft

100 ft

150 ft

300 Mbpsdata rate

+44% throughput

+51% throughput

+62% throughput

DOWNLINK

DOWNLINK


The power of 31

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


Third party confirmation of 3x3 versus 2x2 benefits

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


The power of 3 maintaining two streams

The Power of 3: Maintaining Two Streams

Probability of two stream transmission is greater with 3x3


Product details

Product Details


Atheros experience with 802 11n technologies

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


Time to market 802 11n radio

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


Time to market 802 11n mac bb

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


802 11n client roadmap 2 4ghz

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


802 11n client roadmap 2 4 5ghz

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


802 11n client reference design roadmap

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


802 11n ap router roadmap 2 4ghz

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


802 11n ap router roadmap 2 4 5ghz

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


802 11n router reference design roadmap

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


Reference designs

Reference Designs

  • 3x3 802.11b/g/n AP/Router

2x3 802.11b/g/n Cardbus client

2x3 802.11b/g/n Minicard client


Early software development

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


802 11n software roadmap

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


Summary

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


Standardization update

Standardization Update


Ewc special interest group sig for 802 11n

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


Ewc industry wide support

PC OEM

Retail

ConsumerElectronics

Enterprise

EWC – Industry-wide Support


Ewc organization

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


Ewc key technical highlights

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


Latest progress at ieee

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


Thank you

Thank You


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