3
3G
3G
3G
3
Metcalfe’s Law
3
3G
3
3
3
3G
M i k e
Warren
3G
2G 3G
3
3
3G
2G
3
FOMA
3
3
3
3
Vfones
3
3
3
3
3
3G
1...,8,9,10,11,12,13,14,15,16,17 19,20,21,22,23,24,25,26,27,28,...34