
Japanese operator NTT Docomo announced it achieved the world's first transmission exceeding 1.2 Gbps in a field test using a single-size antenna incorporating a new transmission technology, Smart Vertical Mimo, for LTE-Advanced systems. Docomo's new Smart Vertical Mimo transmission technology, which uses adaptive grouping of vertical antenna components according to the reception quality for mobile devices in the transmission area, enables a single-size antenna to achieve throughput equivalent to that of a four-antenna system.
Smart Vertical Mimo is a key technological development in the planned deployment of Docomo's LTE-Advanced network by the end of the fiscal year ending 31 March 2016. The operator said the technology reduces the cost and space of installing antenna equipment and improves spectrum utilisation efficiency. Space reduction is particularly beneficial for deployments in congested urban areas.