Replies to post #281794 on InterDigital Inc (IDCC)

[mickeybritt]

JefferyHF

If I may ask and why would CDMA not work in 10MHZ and higher? I would not know if it would or wouldn't. I know they had that stipulation in the agreement for some reason and must have meant something important, or it would not have been inserted just for the hell of it. Since you apparently know the answer explain why it was in the agreement in the first place. This is a question I dearly would love to know the exact answer to.

JMO
Mickey

[mickeybritt]

JefferyHF

4g Operators Will Need At Least 10mhz: Dot #1 savramesh

To Stand Alone

Posts: 1,551
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Full Name: Ramesh Amala Srinivasan
City: Nagercoil
Handset: Nokia 6265
Handset - II: GSM Handset
Posted 03 August 2009 - 10:21 AM

Source

Even as the policy for auctioning spectrum for 3G mobile services is yet to be finalised, the Department of Telecom is already thinking about the introduction of fourth generation technologies (4G) such as LTE (Long Term Evolution). The DoT has taken a view that each operator offering 4G technologies should be given at least 10 Mhz spectrum compared to just 5 Mhz for 3G services.

"4G technology, LTE Advance, may also come in India in 2.1 Ghz band, as 2.5 Ghz is mostly used for satellite-based networks. For this technology, the minimum channel size required is 10 Mhz. We need to cater for the introduction of this technology in the country," the DoT stated in a presentation to the Empowered Group of Ministers. Long Term Evolution is the next step of mobile evolution, designed to increase the capacity and speed of mobile telephone networks. Major mobile carriers in the United States and several carriers worldwide have announced plans to convert their networks to LTE.

LTE could allow data transfer rates to and from mobile devices between 15 and 100 times faster than 3G networks. The technology provides downlink peak rates of at least 100Mbps. However, the technology is still being developed globally. Companies including Ericsson and Nokia Siemens are working towards developing standards.

Mass deployment of this technology is expected only by 2012. In India most operators are looking to move to this technology by 2011, once they start making money on 3G services.

On right track

According to industry experts, the DoT is on the right track by identifying at least 10 Mhz for LTE. "LTE is an orthogonal frequency division multiplexing access (OFDMA) technology which requires higher quantum of bandwidth than CDMA technologies. WiMax is also an OFDMA technology and that is why the DoT has earmarked 20 Mhz bandwidth for it. OFDMA technologies increase efficiencies and offer high data speeds
only when there is adequate spectrum," said an industry expert.

This post has been edited by savramesh: 03 August 2009 - 10:21 AM

Ramesh Amala Srinivasan