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To: Eric L who wrote (10116)	3/27/2001 2:27:49 PM
From: Eric L	Read Replies (1) \| Respond to of 34857

re: Nationwide GPRS Next Quarter??? >> VoiceStream CEO Highlights Strength of GSM Wireless Technology in the U.S. and Worldwide Business Wire March 27, 2001 Meeting of GSM Executives Worldwide Hosted in Seattle by VoiceStream Showcases GSM's Growth in the United States and Advantage in Introduction of Advanced Wireless Services Speaking at the 45th Global System for Mobile Communications (GSM) Plenary Meeting, VoiceStream Wireless Corporation (NASDAQ:VSTR) CEO John Stanton highlighted the success of GSM in the United States and worldwide, the strength of VoiceStream's GSM nationwide network, and the advantages it offers moving forward with advanced wireless services. As the only nationwide GSM provider in the United States, VoiceStream Wireless is hosting the worldwide gathering of the GSM Plenary. Fourteen CEOs from U.S. and foreign wireless carriers and more than 500 wireless executives are attending the March 26 - March 29, 2001 meeting in Seattle to discuss issues of crucial importance to the GSM wireless industry. Stanton said, "Adopted by 158 countries, GSM accounts for approximately 70 percent of the total worldwide digital wireless market today and has long been the premier standard around the world. The growing importance of GSM in the United States is showcased by the fact that GSM industry leaders from around the world are gathering in Seattle, VoiceStream's home market, to discuss the evolution of the technology and the issues relating to the future deployment of 3GSM services." The last time a Plenary meeting was held in the United States was six years ago, when GSM services were available in only a limited number of areas in the country and provided by several regional operators. Since that time, VoiceStream Wireless and its affiliates have assembled a nationwide GSM network owning licenses covering 97 percent of the U.S. population or 272 million people. VoiceStream is the only carrier in the United States with a nationwide GSM footprint. "The strength of VoiceStream's position in the marketplace today comes from our decision on day one - to deploy a single technology and single band GSM based network," said Stanton. "The initial benefit to our customers has been the ability to use one phone/one number as they travel internationally. With the deployment of GSM's high-speed packet data, GPRS customers will soon have access to advanced wireless services providing faster speeds and always on Internet access. While other carriers have announced intentions to deploy a GSM/GPRS network, they are late to the game. Our existing GSM network gives us a tremendous advantage in the rate at which we can introduce advanced services to our customers. VoiceStream plans to have high-speed GPRS fully operational across our entire network in the second quarter of 2001, well ahead of any other domestic wireless carrier," said Stanton. At the beginning of March 2001, an estimated 475 million customers were using GSM wireless technology, with more than 10 million North Americans using GSM, and three out of every four Americans living in areas covered by GSM. In North America, GSM wireless usage has grown 535 percent annually over the past three years. About VoiceStream Wireless Based in Bellevue, Wash., VoiceStream Wireless Corp. is one of the major nationwide providers of wireless communication services in the country. Through pending mergers and recent license purchases, VoiceStream will have a licensed footprint of over 272 million American consumers. VoiceStream operates and uses the globally dominant GSM technology platform and is a member of The GSM Alliance, L.L.C. that helps provide seamless wireless communications for its customers in more than 6,500 U.S. and Canadian cities and towns, and abroad. VoiceStream has roaming agreements with more than 164 of the major operators worldwide, allowing customers to use their VoiceStream services while traveling internationally to over 70 countries throughout Europe and Asia. For more information, visit the web site voicestream.com. << - Eric -

To: Eric L who wrote (10116)	3/27/2001 5:24:21 PM
From: 49thMIMOMander	Respond to of 34857

GPRS, time slots, received data and power. (The principal reasons for limiting the number of time slots are to (1) reduce the device's power consumption, temperature, and (2) cost, and to (3) increase the number of simultaneous users the network can support) In regards to 1 and 2: The simple fact (IMO) is that if it takes 50-100Mips to process one time slot, it takes 4 times more to process 4 timeslots, and 8(7) times more to process 8(7) time slots. (no vocoder on all those data timeslots, but other data stuff needed instead) Another simple fact is that with silicon geometries halved one can do 4 times more Mips with the roughly the same power consumption (as well as lowering both the Mips and power consumption by going 5-3-1V, same chip cost, but thinner,faster gates,etc,etc) That is, there is a time for GPRS with 2,4,7(8) time slots and that time is mostly a matter of new generations of sillycones (babewatch) and DSP architectures (as well not loading up too much metal with interconnections) (in the same way there is a time for CDMA at peak 2Mbps, but it is not yet here, except for those two handsets) The _MAXIMUM_ _TRANSMIT_ power of 0.2-0.6W specified is only a matter of transmitting that once in a while pushed enter key or roller and setting up the protocol, asking for retransmits,etc. The beauty of it all is that with more and more users the basestation grid must be denser, and less and less _TRANSMIT_ power is needed. However, the RF guys, biasing all those _RECEIVED_ timeslots still need to keep the bias flowing while listning (_receiving_), but that is peanuts compared to _TRANSMITTING_ at 0.2-0.6W (especially with the HiHi linearity of CDMA) But who has ever seen an honest, smiling RF-guy with enough bias and linearity?? Ilmarinen. P.S. In the base station one can, of course, burn a lot of power....both _TRANSMITTING_(talking) and receiving (listning) Luckily few base stations are supposed to be mobile and fit into a pocket, run on small batteries, except for TETRA. P.P.S. EDGE will waste as much RF bias current and power as CDMA, but at that point the base station grid will be dense enough, thanks to the popularity of GPRS. And one can fall back to regular, power saving GSM when needed, for _TRANSMITTING_ (which will probably never happen at "all times slots", except for somebody running a mobile xxx-rated website) P.P.P.S. I was very stimulated by the macho helicopter (cooling fan) spinning on the 1.3Ghz P4, but I wouldn't like to carry it, nor its battery, around in my pocket. (close to a 100W bulb, yes??, maybe too hot for even a hot RF-guy) P...P.S I believe a regular secretary is 50W, while a hot engineer reaches 100-200W, when designing air conditioning (peak and combined burst rates might be much more, with a couple of horses one can run a small sauna)