Even as the third generation (3G) mobile telephony is at a pilot stage, technology players are hopeful that the more advanced 4G will be here sooner than later due to its sheer economic advantage over the former besides its easy upgradeability on the existing infrastructure.

�The 4G is likely to be in India sooner than later, as early as next year, because it is economically more advantageous than 3G, apart as it can be easily upgraded on the existing infrastructure,� said Mr Nikhil Sadarangani of JDSU India, a provider of optical products and solutions.

So optimistic is Sadarangani about its roll out that he said, 4G application trials are likely to be rolled out by next year as the technology is already here.