Vodafone UK and Ericsson have successfully reduced the energy consumption of 5G and 4G sites in a recent trial in London. The innovative ‘sleep mode’ technology allows network sites to power down during low-demand periods, resulting in significant cost and carbon emission reductions.
This approach prioritizes energy efficiency without compromising network performance. The trial employed three key power-saving techniques: ‘deep sleep’ for 5G radio units, which reduces power usage during quiet periods by up to 70%; optimized sleep mode for 4G cells, enhancing efficiency without affecting coverage; and a radio power efficiency map to derive potential energy savings from specific sites.
In addition to enhancing network efficiency, the trial also explored new mast designs potentially reducing the number of physical sites necessary in certain areas. Andrea Donà, Chief Network Officer at Vodafone UK, stated, “By working with Ericsson to successfully apply these innovative software solutions to our network, we’re able to significantly improve energy efficiency without impacting the service our customers receive.”
Other operators are making similar strides towards energy efficiency. For instance, last year, rival company EE (BT) implemented similar technology, projecting potential annual energy savings of 4.5 million KWh.
