Aaron Jiang, President of Huawei’s SRAN Product Line, has launched the GreenSite and PowerStar2.0 solutions to help operators build green 5G networks.
Huawei said the GreenSite solution improves energy efficiency by 20 times. Huawei said PowerStar2.0 solution introduces new intelligent energy-saving features to base stations and networks to cut energy consumption by over 25 percent through multi-dimensional coordination under typical configurations.

The GreenSite solution enables low-carbon sites from three perspectives

High-Integration Radio Lowers Per-Bit Power Consumption

Huawei’s MetaAAU uses ultra-massive antenna arrays to significantly increase antenna gains. Compared with traditional AAU modules, it reduces power consumption by about 30 percent while providing the same DL coverage.

Huawei said ultra-wideband RRU uses ultra-wideband power amplifiers, hardware units, and advanced algorithms to integrate multiple single-band devices into a single box with an ultra-compact form factor.

AC-Removed Simplified Sites Effectively Reduce Carbon Emissions

The air conditioning in equipment rooms constitutes 30–40 percent of a site’s total energy consumption. Huawei offers new outdoor cabinet APM5950 to help operators simplify site construction. It allows operators to deploy sites outdoors without using equipment rooms and air conditioners (AC), increasing E2E energy efficiency from 60 percent to 90 percent while saving 30 percent of site energy consumption. It also uses solar power and high-cycle lithium batteries to replace diesel generators.

Intelligent Collaboration and Bit-Driven Watt Are New Energy-Saving Trends

The intelligent collaboration between services and site hardware — including power supply, storage, and usage units — enables power supply and consumption efficiency to be adjusted in real time based on traffic load, ensuring that sites operate with optimal overall efficiency. Service-adapted energy usage and smart temperature control help maximize energy supply efficiency.

The PowerStar2.0 Doubles Energy Saving with Three Enhancements

Fast (Milliseconds) Shutdown for 24/7 Energy Saving

Based on a hardware design that favors maximized energy saving, PowerStar2.0 supports shutdown in milliseconds based on service load, helping extend energy-saving periods from off-peak hours to the entire day. It further adapts deep shutdown to the estimated speeds required for network services to improve energy-saving precision. This helps further prolong energy-saving periods while also meeting user experience requirements.

Multi-dimensional Coordination to Enable Full-Domain Energy Saving

In PowerStar2.0, power control is further used as the fourth dimension of energy saving beyond the symbol, channel, and carrier levels. The enhancement enables RF modules to transmit less power by increasing scheduling resources, helping ensure user experience and taking network energy saving to new heights.

Optimization in Seconds for Guaranteed Performance

PowerStar2.0 introduces base station intelligence to enable refined KPI and energy-saving optimization. When network performance requirements change, base stations and networks implement intelligent prediction and optimization, and accordingly change sleeping policies in seconds. This enables networks to maximize energy saving while also ensuring performance.

“Huawei will continue to develop innovative solutions and bring intelligence to base stations to help operators build green, low-carbon 5G networks and achieve the carbon peak and neutrality goals,” Aaron Jiang said at the 12th Global Mobile Broadband Forum.