Using Ericsson 5G technologies, Chunghwa Telecom reduces energy utilization by an average of 33%.
Chunghwa Telecom reduces energy utilization. As part of its network modernization efforts, CHT has started upgrading its installed Ericsson base of mid-band Massive MIMO from AIR 6488 to AIR 6419 and from AIR 3239 to AIR 3219. The most recent series of Massive MIMO radios, powered by Ericsson Silicon, contain 32 or 64 transmit/receive branches and were created with the aim of having the best energy efficiency in the market and the smallest size and weight.
In addition to strengthening CHT’s commercial 5G rollout, an upgrade of the mid-band 5G installed base stations in an estimated 2,000 sites and at least 150 C-RAN (centralized radio access network) sites would also significantly reduce operating costs and energy usage to support their sustainability goal of a 1% annual reduction in power consumption.
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The Taiwanese government and CHT, a recent recipient of the Taiwan Sustainability Action Award, both place a high priority on energy efficiency and sustainability as important issues in the sector. Chunghwa Telecom reduces energy utilization
“Sustainability has always been at the core of our business,” says Alex Chien, President of Network Technology at Chunghwa Telecom. CHT has been recognized with various sustainability awards worldwide and has been a part of the Dow Jones Sustainability Emerging Markets Index for ten years running. As the cornerstone of the societal Net Zero aim, we think network modernization is a critical facilitator for a more environmentally friendly digital infrastructure. We will transition to a low-carbon future more quickly thanks to our relationship with Ericsson.
“Building a high-performing and energy-efficient 5G network with Chunghwa Telecom is part of our ambition for resilient and sustainable future networks,” says David Hammarwall, acting head of product area networks at Ericsson. We are addressing one of our industry’s largest concerns by reducing network energy consumption and carbon footprint while scaling up 5G using our energy-optimized 5G portfolio. Our objective is to accelerate 5G while realizing a low-carbon future.
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Improved performance, easier deployment, and less energy use
Since AIR 6419 weighs 60% less than its predecessor, it is simple to transport to the installation location and handle by one person. The new units also contain 192 antenna elements (compared to 128 in the old installation), which increases 5G capacity and coverage. Chunghwa Telecom reduces energy utilization. The real power usage in the field was decreased by an average of 33% thanks to the most recent Ericsson 5G solutions, which also resulted in a decrease in CO2 emissions and CHT’s energy costs.
The new C-RAN design also made it possible to save even more energy by switching to the most recent RAN Compute baseband offering. To connect the radios and the RAN Compute at the C-RAN hub, Chunghwa Telecom installed Ericsson’s Fronthaul 6000. By improving the capacity of existing fibers, Fronthaul 6000 lowers the cost of fiber. Energy consumption could be reduced by utilizing the Fronthaul 6000 portfolio’s passive components.
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To combine and link all RAN Compute units to the backhaul network, Chunghwa Telecom also installed Router 6000. Best-in-class time and frequency synchronization between radios is provided by Router 6000. Additionally, it acts as a safeguard for the current synchronization solutions. Chunghwa Telecom reduces energy utilization. This has enhanced network performance and decreased overall operating expenses.