Executive Summary
As part of the international efforts for energy conservation and CO2 reduction, migration to an energy-efficient mobile infrastructure is of high importance to the mobile communications industry. For network operators, energy efficiency is much more than a corporate social responsibility topic — it will be one of the key factors for successful operation of large-scale mobile communication services.

In NEC’s Green Radio approach for next-generation mobile infrastructure solutions, energy-efficient operation is part of the overall design. The base station platform consists of energy-efficient key devices and enables operation without an air conditioner. It also provides intra- and inter-base station control mechanisms to adapt to changing demand for capacity at different locations and times in its resource usage, network coverage and energy consumption.

This whitepaper presents the benefits of the Green Radio approach and provides an overview of NEC’s development and standardization activities for ensuring a green future for mobile communications.

Operator Benefit
Due to the tremendous upswing of mobile Internet access demand, the cellular wireless system is currently transitioning to LTE. This next-generation mobile infrastructure provides broadband access and enables new classes of applications for mobile users.