Telstra has revealed the addition of almost one million new mobile services in the six months to December 2011, but Sensis revenues plummeted 24 percent in 12 months.
Japanese mobile operator, NTT DoCoMo, claims to have demonstrated communication at 5Gbps, to a vehicle moving at 10kph, using its experimental 4G wireless technology.
The throughput was achieved using multiple transmit and receive antennas on the vehicle and the base station - 12 transmit and 12 receive on each - and represents quite dramatic progress. It was only a month earlier that NTT DoCoMo boasted throughput of 2.5Gbps, using half the number of antennae.
The demonstration, and NTT DoCoMo's research are part of its contribution to the evolution of an international 4G standard. The ITU defines 4G technology as a future wireless telecommunications technology allowing data transfer rates of 1Gbps in 'nomadic' circumstances and 100Mbps fully mobile. The spectrum for 4G technology will be decided at WRC (World Radiocommunication Conference) in October of 2007. The 4G mobile communications format is expected to become commercially available around 2010.
NTT DoCoMo will present the details of the experiment at the 3GSM World Congress 2007 in Barcelona from February 12 to 15. The company says it "looks forward to contributing to the global standardisation of 4G through its ongoing research and development."
David Bass
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