A multi ratio future -- Wi-Fi, WiMAX, 3G : Complementary ?
Joseph Rodriguez
Wireless Technical Marking
Wireless Networking Standards
802.15 PAN Bluetooth、UWB
802.11 LAN Wi-Fi
802.16 MAN WiMAX
802.20(proposed) WAN 3GPP、EDGE (GSM)
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Wireless broadband vision
Personal Area network
Bluetooth
Ultra wide band
Local area network
802.16 WiMAX
Wide area network
3G: EDGE, 1xEVDO, HSDPA
Roaming
Simplified network selection
Summary
Emerging wireless technologies
Wireless physics tradeoff
High throughput
WiMAX
Long pange
WiFi
Cellular
Omni-directional antenas
In the Home
可連結 On the PC，On the Go，Around the Home 等等裝置。
PAN (Personal Area Network)
IEEE WPAN Standards
 Roadmap
 Future standards 802.15.1a ，802.15.3a
802.15.1a
 Bluetooth v1.2
 New features
Adaptive frequency hopping
Enhanced voice processing
Faster connection setup
 Backwards compatible
802.15.3a
Modulates pulse based waveforms instead of continuous carrier waves
Supports bit rates greater than 100 Mbps within 10m radius
All-COMS, low power, lowcost designs are feasibles
Uses ~7GHz of spectrum
“Moore’s Law Radio” signal processing
LAN (Local Area Network)
802.11a  5GHz OFDM 54Mbps
802.11b  2.4GHz CCK 11Mbps
802.11g  2.4GHz CCK or OFDM 54Mbps
802.11n  100Mbps
802.11c  802.11 Bridging Tables Incorporated into 802.1D
802.11h  European Regulatory Extensions
802.11j  Japanese Regulatory Extensions
Wi-Fi Protected Access  Security-subset of 802.11i Draft
802.11F  Inter-Access Point Protocols
802.11i  Enhanced Security
802.11e  Quality of Service
802.11k  Radio Resource Measurement
802.11m  Mantenance of Standards
MAN (Metropolitan Area Network)
All these segments will co-exist, but they’ll roll out in phases.
High thoughput access: business, Backhaul&some residential
Mobile/portable broadband
Consumer broadband access
Hotspot backhaul
802.16
802.16a/REVd
802.16e
Completed
Dec 2001
802.16a: Jan 2003 2005 exp.
802.16REVd: 2004
exp
Spectrum
10-66 GHz
<11 GHz:
2.5,3.5 GHz
licensed 5.8 GHz
license-exempt
<6 GHz
Channel conditions Line of sight only
Non line of sight
Non line of sight
Bit rate
32-134 Mbps at 28
MHz
channelization
Up to 75 Mbps at
20 MHz
channelization
Up to 15 Mbps at 5
MHz
channelization
Mobility
Fixed
Fixed (outdoor and
Portable/mobile
indoor install)
Channel
bandwidths
20,25 and 28 MHz
Flexible channel
bandwidths
between 1.25 and
20 MHz
Same as 802.16a
w/more
“sub-channel” for
low power
Typical cell radius
1-.3 miles
3 to miles; Max
1-3 miles
range 30 miles
based in tower
height and
topography
WiMAX Vision – Outdoor install (1H’05)
WiMAX Vision – Indoor install (2H’05)
WiMAX Vision – Portability (’06-’07)
WAN (Wide Area Network)
Wireless Infrastructure
Simplified Network Selection (SNS)
Simplified Network selection allows Steve to use one account to roam freely between
different hotspots and cellular connections.
SNS + Single billing & authentication
WWAN & WiFi Convergence
Emerging wireless technologies
Wireless Platform Comtinuum
There’s no “best” technology
The solution must be optimized for the platform and the usage model.
Standards + Interoperability
Summary
 All these platforms will co-exist and serve different usage models
 USB-type cable  BT/UWB
 Ethernet cables  Wi-Fi
 DSL/Cable modems  WiMAX
 Evolution of Cellular  3G
 Roaming : Intel is actively pursuing ways to take advantage of synergies
between 802.11, 802.16 and 3G networks