1. QUALCOMM Proposal Summary
November 2004
QUALCOMM Proposal Summary
John Ketchum, Sanjiv Nanda, Rod Walton, Steve Howard, Mark Wallace, Bjorn Bjerke, Irina Medvedev, Santosh Abraham, Arnaud Meylan, Shravan Surineni QUALCOMM, Incorporated 9 Damonmill Square, Suite 2A Concord, MA Phone: Fax:
John Ketchum, et al, Qualcomm

2. Summary Qualcomm proposal builds on existing 802.11a,g,e design
November 2004
Summary
Qualcomm proposal builds on existing a,g,e design
802.11n can enable new markets & applications:
Multimedia distribution in the home
Enhanced enterprise applications (e.g. VoD, Video Conf.)
These applications require:
High throughput  SS/ES, ACF, rate feedback
High QoS  SS/ES, ACF, rate feedback
Maximized range  ES
Maximum spectral efficiency  ES
SS/ES + rate feedback + ACF meet the requirements associated with these new markets & applications:
Highest network capacity: greater than 100 mbps above the MAC inside 30 m (20 MHz, 2x2, 5 GHz)
Reliable coverage
QoS: Less than 50 ms latency with “ZERO packet loss”
PHY techniques proven in FPGA-based prototype
John Ketchum, et al, Qualcomm

3. Throughput Comparison
November 2004
Throughput Comparison
0 dB: 120 m
10 dB: 60 m
20 dB: 30 m
30 dB: 15 m
37.5 dB: 10m
SGI-52: 52 data subcarriers with short guard interval
Results given with closed loop rate control
SS-STBC can achieve 120Mbps at 30m (20dB)
ES has > 6 dB advantage over other at 150 Mbps PHY throughput
At 30 m (20 dB) ES has >50% PHY t’put advantage over others
John Ketchum, et al, Qualcomm

4. Goals Maximize Throughput, QoS, and Spectral Efficiency
November 2004
Goals
Maximize Throughput, QoS, and Spectral Efficiency
Minimize complexity and assure backward compatibility
Provide balance between TTM needs and 11n design longevity economics
John Ketchum, et al, Qualcomm