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To: Ruffian who wrote (6088)	2/1/2000 11:17:00 PM
From: Kent Rattey	Respond to of 13582

Subject : Ericsson Launches World's First IP Base Station System 02/01/00 Date : Tue, 1 Feb 2000 14:20:16 PST From : newsbytes@clari.net (NB / LON) Keywords : Bureau-LON, Telecommunications, tick=ERICY CANNES, FRANCE, 2000 FEB 1 (NB) -- By Sylvia Dennis, Newsbytes. Ericsson [NASDAQ:ERICY] has taken the wraps off the world's first IP (Internet Protocol) wireless base station system. The system, the firm says, clears the way for the arrival of wireless-specific Internet access devices. Unveiling the system at the GSM World Congress event in Cannes, France, today, Ericsson said that, by supporting native IP, carriers can make more than 40 percent more effective use of the transport capacity of their networks. Because many wireless carriers already have an underlying IP infrastructure to their GSM/PCS (global system for mobile communications/personal communications services) networks, however, Ericsson says that its new base station technically allows operators to upgrade or build their networks to more efficiently handle the huge traffic increase expected in tomorrow's mobile networks. The system also offers - for the first time - an IP-based system for wireless access networks with ensured quality of service for voice and other real-time sensitive services. For the technically-minded, the IP-BSS technology incorporates a real-time wireless optimized implementation of the Differentiated Services (DiffServ) standard to classify and prioritize traffic. The firm says that this emerging standard is especially well suited to the characteristics of wireless access networks, where traffic is well defined and known. Ericsson says that the prioritization of traffic in its IP-BSS makes it possible - in an industry-first - for GSM/PCS base stations to deliver delay-sensitive services, like voice and videoconferencing, over IP. The firm says that "best effort" data is also efficiently handled, which means that operators can fully realize the benefits of a packet- based wireless access network. Thanks to this technology, Ericsson says it is now possible to run data traffic as low-priority traffic across a cellular network, right alongside high-priority traffic, without any overlap problems. This feature, the company says, leads to increased flexibility in the dimensioning of the network and significant transmission savings compared to current circuit-switched systems, where bandwidth is usually peak allocated. In a demonstration shown to attendees at the GSM World Congress today, Ericsson showed data traffic in the form of graphic illustrations being sent at a steady rate from Sweden to the Ericsson stand in Cannes. To illustrate the traffic prioritization (DiffServ) feature, visitors at the stand were invited to make real-time GSM phone calls over the same wireless access links. Ericsson said that the visitors could then observe how the rate of transmission of the graphical illustrations slowed slightly, at the same time as they experienced no delay in the voice quality of their mobile phone call. Ericsson's Web site is at ericsson.se . Reported by Newsbytes.com, newsbytes.com .

To: Ruffian who wrote (6088)	2/1/2000 11:25:00 PM
From: DWB	Read Replies (2) \| Respond to of 13582

Ruffian, Thanks for that great post... I had to pull this part out... Although the standard allows for maximum efficiency in transferring data, the first generation of GPRS phones likely will be Type 1, Class 12, which supports only five total slots that must either transmit or receive but not both during each transmission. Thus, despite advertised rates of 115kb/s, the maximum rate in one direction will peak at slightly above 56kb/s, while the maximum rate in the opposite direction is 14.4kb/s. So, for example, a handset that's combining four slots to receive at a total rate of 56kb/s would be able to send data at the same time at only 14.4kb/s because that's all the remaining slot can accommodate. CDMA takes a similar approach to maximize efficiency. In 1XRTT, the transmit and receive functions always are negotiable, so the base station and the mobile can work together to decide what data rate can be supported. For 1XRTT, the advertised maximum rate is 144kb/s, which the first handsets are expected to support. So in other words, all flavors of 2.5G aren't exactly equal. While Japan has 64K rates now, the GPRS handsets that Ericsson is touting to be available by the end of the year will only be 56K/14K. Furthermore, the 1X handsets will be lapping them at 144K or more (didn't today's QCOM release say the current chipsets were getting 153K already?). Europe will continue to fall farther and farther behind the race for speed unless they get with the program. DWB Q2.5K/Y2K+5