5G Sustainability and Strength Focus Points for Qualcomm’s Green Network Research

Technology is an ever-growing industry and is consumed at a large scale. The subsequent energy consumption from the tech industry is also hitting peak levels. The technology industry has been working towards a sustainable future. Under the telecommunications industry, players like Qualcomm have proposed a complementary approach for reducing power consumption. Qualcomm’s approach states that power consumption can be optimised even when the network is actively transmitting.

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Power Amplifiers Are a Major Source for Power Inefficiency

Qualcomm’s approach suggests that by improving the efficiency of a network’s power amplifier, the power consumption can be optimised. Power amplifiers are used with many margins to operate so that non-linear distortion can be avoided. This makes power amplifiers a major source of power inefficiency. Signal quality will be compromised if power amplifiers are moved to a more power-efficient operating point by reducing the margin. Qualcomm showed a combination of signal processing techniques to improve power amplifier efficiency. This alternative was demonstrated in existing base station hardware which goes to show that these solutions can be deployed without a hardware upgrade.

Digital Post Distortion is One of the Signal Processing Techniques

According to the Senior Director of Technology at Qualcomm Gideon Kutz, digital post distortion is a signal processing technique that, if used, can allow the power amplifier to move to a more power-efficient operating point. Using the digital post distortion method, the non-linear distortions created by power amplifiers in the base station can be rectified in the mobile station.