November 13, 2013

DOCOMO Achieves World's First 1.2 Gbps Transmission with Single-size Antenna Using Smart Vertical MIMO for LTE-Advanced

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R&D

TOKYO, JAPAN, November 13, 2013 --- NTT DOCOMO, INC., a personalized mobile solutions provider for smarter living, announced today that it has 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, a key technological development for the planned deployment of DOCOMO's LTE-Advanced network by the fiscal year ending March 31, 2016, reduces the cost and space of installing antenna equipment and improves spectrum utilization efficiency. Space reduction is particularly beneficial for deployments in congested urban areas.

DOCOMO will continue to enhance its Smart Vertical MIMO transmission technology, aiming to provide maximum-quality network services with its coming commercial LTE-Advanced network.

About NTT DOCOMO

NTT DOCOMO provides innovative, convenient and secure mobile services that enable smarter living for each customer. The company serves over 61 million mobile customers in Japan via advanced wireless networks, including a nationwide 3G network and one of the world's first commercial LTE networks. Leveraging its unique capabilities as a mobile operator, DOCOMO is a leading developer of cutting-edge technologies for NFC mobile payments, mobile GPS, mobile TV, intuitive mobile assistance, environmental monitoring, smart grids and much more. Overseas, the company provides technical and operational expertise to eight mobile operators and other partner companies. NTT DOCOMO is listed on the Tokyo (9437), London (NDCM) and New York (DCM) stock exchanges. Please visit https://www.nttdocomo.co.jp/english/ for more information.

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