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To: Eric L who wrote (2198)	4/15/2002 12:11:12 PM
From: Eric L	Read Replies (1) \| Respond to of 9255

AWS GSM/EDGE Example Capacities & Data Speed Comparison Source: AWS 3G Migration - March 20, 2002 Download here: 3gamericas.org ---------------------------------------------------------------------------- Slide 15: Example Capacities * GSM with AMR, 5/15 BCCH (GSM) Frequency Reuse and 1:1 non-BCCH Frequency Hopping One Way MHz Technology Erlangs/Sector 5 TDMA, 5/15 23 5 GSM AMR, 5/15 BCCH + 1:1 FH non-BCCH 36 to 48 10 TDMA, 5/15 54 10 GSM AMR, 5/15 BCCH + 1:1 FH non-BCCH 86 to 123 * Initially (Phase 2) AWS is planning to apply EDGE in 10 MHz of 1900 MHz spectrum (5 Receive and 5 Transmit). * In their 3rd Phase AWS will add 10 MHz additional in 850 MHz spectrum. ---------------------------------------------------------------------------- Slide 4: Data Rates for Applications * User experience depends on cell engineering, user location, sector load, available spectrum, terminal capability, etc. * Data rate of 128 kbps is sufficient for most initial 3G applications Requires - Voice 8 kbps to 16 kbps - Messaging & Transactional 12 kbps to 30 kbps Infoservices - Video Telephony 16 kbps to 64 kbps - WWW browsing 32 kbps to 64 kbps Intranet access Downloading - Video & Audio Streaming 30 kbps to 128 kbps ---------------------------------------------------------------------------- Slide 5: Data Speed Comparison (Loaded Network) Average Average Peak Peak PC Streaming Network Device Browser Media Speed Speed Speed Speed GPRS 115 kbps 470 kbps 20-30 kbps 10-20 kbps EDGE 470 kbps 237 kbps 80-130 kbps 20-40 kbps WCDMA 2 mbps 2 mbps 200-300 kbps to 384 kbps 1xRTT-0 153 kbps 153 kbps 40-60 kbps ~ 64 kbps 1xRTT-A 53 kbps 307 kbps 70-130 kbps * ??? 1xEV-DO 2.4 mbps 2.4 mbps 120-300 kbps 50-100 kbps Note: AWS did not include 1xRTT Release A. I added it with a WAG at Average Speeds ---------------------------------------------------------------------------- ### - Eric -