In February 2007, the Japanese company NTT DoCoMo tested a 4G communication system prototype with 4×4 MIMO called VSF-OFCDM at 100 Mbit/s while moving, and 1 Gbit/s while stationary.
Veebruaris 2007 katsetas Jaapani firma NTT DoCoMo 4G sideteenuse prototüüpi 4x4 MIMO, nimetatud VSF-OFCDM, 100 Mbit/s liikumise pealt ja 1 Gbit/s paigal olles.