CCK / OFDM Closing Summary

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Presentation transcript:

CCK / OFDM Closing Summary doc.: IEEE 802.11-01/612 November 2001 November 2001 CCK / OFDM Closing Summary Zyren, Webster, Halford Intersil Zyren, Webster, Halford Intersil

The TGg Opportunity TGg is not “late” November 2001 The TGg Opportunity TGg is not “late” FCC opened spectrum to OFDM devices in May FCC actions due to activities of this group TGg will come out after 802.11a 802.11a rolling out now, but… Good Technology Takes time to develop 802.11a took >2 years to develop after adoption as a standard Good products have long lifetimes Spectrum is not disposable Zyren, Webster, Halford Intersil

CCK/OFDM Complements 802.11a November 2001 CCK/OFDM Complements 802.11a CCK/OFDM not a direct competitor with 802.11a TGg has only 3 Channels as compared to 8 – 12 for 802.11a CCK/OFDM compliments 802.11a by extending OFDM to the 2.4 GHz band CCK/OFDM preserves backward compatibility CCK/OFDM reaffirms 802.11 commitment to OFDM as high rate “waveform-of-choice” Is an important stepping stone to dual band Zyren, Webster, Halford Intersil

What if we don’t approve CCK/OFDM? November 2001 What if we don’t approve CCK/OFDM? We will still have high-rate solutions @ 2.4 GHz Not standards-based May or may not be based on OFDM If not OFDM-based: Proprietary solutions may compete with OFDM @ 5 GHz Proprietary solutions will contribute to market confusion Will definitely make dual band radio implementations more difficult to implement Zyren, Webster, Halford Intersil

If we adopt CCK/OFDM 802.11 will deepen commitment to OFDM November 2001 If we adopt CCK/OFDM 802.11 will deepen commitment to OFDM One modulation scheme in both bands CCK/OFDM is a step toward dual band radios Baseband function of CCK/OFDM radio are nearly identical baseband functions for dual band radio Incremetal cost of 802.11g is zero for dual band radio Standards-based high rate solution @ 2.4 GHz Higher data rates are achieved while providing backward compatibility with existing 802.11b systems Based on multi-vendor technology Zyren, Webster, Halford Intersil