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DOCOMO Develops 700MHz-compatible Multi-band Antenna for Base Stations

DCM
DOCOMO Develops 700MHz-compatible Multi-band Antenna for Base Stations


The company will soon begin installing 700MHz-compatible base stations in preparation for the new spectrum, which will become available for use in commercial LTE service in Japan from early 2015. The 700MHz band will help accommodate the expected rise in data traffic as mass users shift to LTE.

The new antenna is no larger than DOCOMO's existing four-band antennas for 800MHz, 1.5GHz, 1.7GHz and 2GHz. Its compact size will enable easy installation of base stations in limited spaces, accelerating the transition to 700MHz-compatible base stations.

Equipping the antenna for an extra frequency was a considerable challenge because mutual interference increases as bands are added. DOCOMO's solution was to develop an innovative design for the antenna element that not only reduces interference, but also increases the efficiency of signal transmission and reception.

About NTT DOCOMO

NTT DOCOMO is a world-leading mobile operator and growing provider of comprehensive services centered on mobility. The company serves over 60 million 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 www.nttdocomo.com for more information.



Source: NTT DOCOMO

Contact:
Eijun Tanaka or So Hiroki
International PR
Public Relations Department
Tel: +81-3-5156-1366
Fax: +81-3-5501-3408
Website: www.nttdocomo.com


Copyright 2013 JCN Newswire. All rights reserved. www.japancorp.net


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