4G to go quicker still

Japanese firm NTT DoCoMo is widely regarded as the most successful 3G wireless service operator in the world. For the last couple of years, NTT has been working on 4G research and development.

Last Thursday, NTT announced that it had achieved data speeds of upto 1 Gbps in its test runs of 4G. The system which they used to achieve this used the MIMO antenna technology, and ran something known as the Variable Spreading Factor-Spread Orthogonal Frequency Division Multiplexing (VSF-spread OFDM).

NTT also said, that its goal is to establish a global 4G standard in cooperation with ITU, and to have commercialized 4G services by 2010.