9. 3G Vs 4G The basic difference between 3G and 4G is in data transfer and signal quality. The highest download and upload speed in 3G are 14 Mbps and 5.8 Mbps respectively Technology 3G 4G Data Transfer Rate 3.1MB /sec 100MB/sec Internet services Broadband Ultra Broadband Mobile -TV Resolution Low High Bandwidth 5 - 20 MHz 100 +MHz Frequency 1.6- 2 GHZ 2 – 8 GHz Network Architecture Wide Area Network Hybrid Network
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12. Which countries have 4-G Except for the Scandinavian countries, a few countries have started the 4G commercially In the US, Sprint Nextel initiated the service last year Countries expected to launch 4G by this year are Germany, Spain, China, Japan and England