NTT DoCoMo announced that its field experiment of fourth-generation radio access in Yokosuka, Kanagawa Prefecture on December 25, 2006 saw the attainment of a maximum packet transmission rate of about 5Gbps in the downlink using 100MHz frequency bandwidth to a 10km/h mobile station. The development followed the company’s decision to increase the number of MIMO transmitting and receiving antennas from 6 in a December 14, 2005 test, where the maximum speed reached 2.5Gbps, to 12. The ratio of data transmission rate to channel bandwidth from the previous to the latest testing also increased two-fold from 25bps/Hz to 50bps/Hz (5Gbps/100MHz). DoCoMo plans to report the experiment’s details before the 3GSM World Congress 2007 in Barcelona, Spain.
Via [physorg.com]
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