What are the advantages and disadvantages of 3G?

What are the advantages and disadvantages of 3G?

Advantages of 3G:

a. Overcrowding is relieved in existing systems with radio spectrum
b. Bandwidth, security and reliability are more
c. Provides interoperability among service providers
d. Availability of fixed and variable rates
e. Support to devices with backward compatibility with existing networks
f. Always online devices – 3G uses IP connectivity which is packet based
g. Rich multi media services are available

Disadvantages of 3G:

a. The cost of cellular infrastructure , upgrading base stations is very high
b. Needs different handsets.
c. Roaming and data/voice work together has not yet been implemented
d. Power consumption is high
e. Requires closer base stations and are expensive
f. Spectrum-license costs, network deployment costs and handset subsidies subscribers are tremendous.