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NEC helps meet need for speed for mobile data in urban areas - New transmitter boosts operators' ability to densify small cell networks to improve mobile data speeds and the call quality while reducing power consumption -

*** For immediate use June 2, 2014

Tokyo, June 2, 2014 - NEC Corporation (NEC; TSE: 6701) today announced it has developed a new digital RF transmission system for a base station that flexibly operates in a wide range of frequencies enabling it to be deployed in high concentrations to boost the mobile data capacity of LTE and 3G networks. At the same time, it reduces the power consumption of small base stations by as much as 30% when compared with conventional systems. (*1)

Mobile data traffic now accounts for a quarter of all global internet traffic with video a key driver of this growth according to a study by KPBC, the venture capital firm. However, people often face the problem of LTE and 3G data speeds slowing to a crawl in densely populated urban areas when large numbers of people are trying to use the network at once. The most effective way to overcome this issue is to deploy a high concentration of base stations that operate in a wide range of optimal frequencies.

NEC's newly developed digital RF transmitter system for a base station meets this need because of its highly efficient and frequency-agile characteristics. In addition, as each of the plural digital amplifiers is activated only when necessary, it consumes less power than its predecessors. This also enables the size of the base station's heat regulating chassis to be reduced, allowing the size of the wireless base station to be reduced by up to 50% compared to previous solutions. (*2)

Moreover, as the newly developed system digitizes the amplitude information relating to the strength of the signal, the signals are scarcely distorted in the amplitude. This enables the size of the distortion-correction circuit to be halved, contributing to the base station's reduced size.

"These new features enable telecommunication carriers to install base stations that operate at an optimal, wide frequency range at low cost and in a high concentration," said Soichi Tsumura, Green Platform Research Laboratories, Central Research Laboratories, NEC Corporation. "As a result, users can enjoy high quality video and download data at high speeds, even in crowded places or areas where it is difficult for radio waves to penetrate."

[Attachment] Features of the newly developed digital RF transmission system



*1) Comparison with NEC's conventional analog wireless transmission system

*2) Comparison with NEC's conventional wireless base stations

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