To: Raymond Duray who wrote (5760 ) 10/31/1999 1:18:00 AM From: Peter Ecclesine Respond to of 12823
Hi Ray, The work on new .11 standards began in mid-1997, and we decided to have an update in the 2.45GHz ISM band, as Micrilor/Clarion was shipping 10Mbps in Japan, and others had developed low-cost/low-complexity modulations that could be quickly deployed. 802.11b had seven technology submittals, and in July '98 Lucent's and Harris's CCK-16 was chosen, and Alantro's PBCC was accepted as an alternate modulation(to get Alantro's votes for CCK, which didn't have a majority). This was a beauty contest for second place, as abundant co-primary bandwidth in the 5GHz band was to be the longterm solution to unlicensed broadband data communication. I don't remember any OFDM candidate for the .11b, but there might have been one from Golden Bridges. 802.11a had three technology submittals (RadioLAN's D-PPM, Micrilor 's M-BOK, and Lucent's OFDM), and by May of '98 OFDM was the clear choice. Wi-LAN's Steve Knudsen attended several meetings, and Wi-LAN submitted a letter to IEEE offering to license their IPR in conformance with IEEE policy. HiperLAN also went through a beauty pagent with eight contestants, two of which were OFDM. In Sept '98, a joint IEEE 802.11/ETSI BRAN meeting in London brought agreement to jointly harmonize 5GHz work on OFDM. Lucent chaired .11 and BRAN, and was instrumental in bring this result about. Every meeting of IEEE 802.11 has a call for patents and intellectual property that could affect the standards under development, and individuals and companies are encouraged to submit letters if they hold such IPR. The 10/26 Loring Wirbel article said .11b, but meant .11a. petere