What do 2G and 3G mean?

The G in 2G, 3G and 4G stands for Generation , and they refer 2nd, 3rd and 4th generation of wireless technology. The newer generation is faster, more secure and more reliable. 1G was offered in analog technology (AMPS), and since 2G signals are transmitted in digital format in GSM and CDMA technologies.

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What is bandwidth of 4G?

3G Vs 4G 3G4GFrequency Band1.8 – 2.5 GHz2 – 8 GHzBandwidth5-20 MHz5-20 MHzData rateUp to 2Mbps ( 384 kbps WAN)Up to 20 Mbps or moreAccessWideband CDMAMulti-carrier – CDMA or OFDM(TDMA)Features of 4G Wireless Systems www3.nd.edu › ~mhaenggi › NET › wireless

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