1x EV-DO

known as the evolution of cdma2000 system

can provide high speed mobile data service based on cdma2000. This paper briefly introduces the technical characteristic and forward link slot structure of 1x EV-DO and calculates the forward link coverage depending on various transmission conditions. Combined with the calculation

1x EV-DO can be analyzed by examples. The result shows that 1x EV-DO system is difficult to provide the wireless access data rate of 2048kbit/s in radio environment of indoor office

and it is possible to provide the most wireless access data rate of about 600kbit/s when the cell capacity is limited and the channel condition is ideal.