GSM

• GSM

  • nationwide if all systems built out (Chicago and Dallas missing today). Has become de facto standard in Europe
  • Used in Asia (excluding Japan)
  • Used as U.S. PCS Standard at 1900 MHz
  • GSM footprint in U.S. almost

• GSM and PCS1900 are same standard -- different frequency band

• Based on TDMA technology

• Includes data-only channel for Short Message Service (SMS)

• Supports dial-up data at 9.6 Kbps today, going to 14.4 soon

• GSM plans to extend data rates to 28.8 Kbps and beyond, perhaps as high as 76.8 Kbps