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To: Bernard Levy who wrote (2117)	2/22/2001 8:02:23 PM
From: Elsewhere	Respond to of 46821

"As you know, OFDM is likely to become the standard for 4G (if there is such a thing)." The press starts to write about it already: The Wall Street Journal Interactive Edition February 20, 2001 Tech Center: Looking Ahead, Researchers Contemplate '4G' Technology By ALMAR LATOUR, Staff Reporter of THE WALL STREET JOURNAL Psst! Have you heard about 4G yet? You will, according to telecom researchers who are looking into the future, way into the future. Despite plunging stock prices and costly telecom networks that have yet to meet their profit promise, a buzz is beginning about the next new thing: Fourth-generation telephony, or 4G. No one in the industry can give an exact definition for the term, and some speak of it in terms more frequently heard at New Age religion seminars. But already some researchers and telecom operators use it to evoke a braver new wireless world than its predecessor, 3G, that would create applications that most consumers can't yet properly imagine. "There is not an exact technical definition for 4G," says Hakan Eriksson, the head of research and development at Telefon AB L.M. Ericsson. "It's a research topic that goes beyond 2010." Adds Osten Makitalo, Telia Mobile's research director who developed mobile telephony in Scandinavia more than a decade ago: "4G is a system of systems that can take advantage of all kinds of different wireless technologies." ... interactive.wsj.com

To: Bernard Levy who wrote (2117)	2/22/2001 8:34:45 PM
From: axial	Read Replies (2) \| Respond to of 46821

Hi, Bernard - You touch on an interesting subject: "OFDM is not the only capacity augmenting technology available--smart antennas have also a lot to offer." Looking at the antenna technology scene, one gets the feeling that the IP must be all sewn up. AT&T with adaptive antennas and beamforming, Cisco/Clarity with a truckload of algorithms, the polarized wave reception technology announced in Lucent NRs of late. (Is it that new?) I'm a little excited by the Metricom-type of repeaters, ie., small units mounted on street-light standards, and the like. The big towers will retain a place, but the standard cellular architecture looks like it's in for some serious revision, right down to the piconets. That, coupled with the use of mesh networks seems to be evolving toward a price war. By that I mean that carriers, evaluating this RF technology over that, especially WRT NLOS, may have to make some tough decisions. Do you go with more repeaters, or NLOS technology? I'd be interested in your thoughts, Bernard. Regards, Jim