Where else is 4G already in existence ? USA ? what are the data plans over there ? Did their 3G plans mirrored ours, as to chances of same thing happening for 4G ?
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Although there is too much of speculated news of 4G than real one, still was lucky to get an article which have all the answers to your questions.
List of countries where 4G is available :
GSM World Coverage Map- GSM Country List by frequency bands
This article talk about Sprint 4G of USA:
3G vs. 4G: Real-world speed tests - Computerworld
Speed:
It says that Sprint 3G have an average speed of 550Kbps which is quite high in India. And regarding 4G it says, Average Sprint 4G speed is 4.1 Mbps and the highest Download Speed noticed was 11.2 Mbps. So comparing with Indian 3G speed, I am sure 4G too would be having much higher speed.
The 4G network delivered an average download speed of 4.1Mbit/sec. -- about what you'll get with a wired DSL or cable modem connection. It was seven times faster than Sprint's 3G service, which averaged 550Kbit/sec. I received a peak 4G download speed of 11.2Mbit/sec. at one location, nearly 10 times faster than the 1.2Mbit/sec. of throughput available on Sprint's 3G network at the same location two minutes later.
Pricing:
Regarding Pricing it talks about $60 4G/3G bundled plan in which 4G was unlimited and 3G was limited to 5 GB.
I used the $60 4G/3G Mobile Broadband Connection Plan, which includes unlimited use of 4G data but limits 3G usage to 5GB per month.
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This values are of course standardized to India as one should expect a lot more active users per cell site than western countries Or in simple words people use wireless medium for torrent dwnlds /wireline bb replacement and all such stuff which lower the per user bandwidth..
Technology | 3G | 4G |
Frequency band | 1.8 - 2.5GHz | 2 - 8GHz |
Bandwidth | 5-20MHz | 5-20MHz |
Data rate | Up to 2Mbps | 100Mbps moving - 1Gbps stationary |
Access | W-CDMA | VSF-OFCDM and VSF-CDMA |
FEC | Turbo-codes | Concatenated codes |
Switching | Circuit/Packet | Packet
|
The existing 3G W-CDMA standard will be replaced in 4G by VSF-OFCDM and VSF-CDMA. VSF-OFCDM allows extremely high downlink connections, both indoors and outdoors. VSF-CDMA provides high-efficiency, high-speed packet transmissions for the uplink.
The 4G adoption of concatenated FEC (Forward Error Correction) will allow much larger data packets to be transmitted and at the same time reduce the bit error rate. This will increase the overall data through-put.
One of the main advantages that 4G technology will have over 3G is higher data rates. This will benefit the end user by allowing faster access to multimedia and video while on the move.