Indosat Ooredoo’s recent collaboration with Ericsson has demonstrated that preparing the network, activating energy-saving software features, and operating site infrastructure intelligently are all key to reducing energy consumption while supporting mobile traffic growth.
The first, and arguably most important, effort Indosat Ooredoo, an Indonesian telecommunications provider, took to building a more sustainable network was the aggressive LTE spectrum migration and the change to the Ericsson Radio System. In 2017, Indosat Ooredoo began investing into Ericsson Radio System, including 4X4 upgrades on legacy sites, to modernize themselves. This transformation involved upgrading hardware, software, and related services to build a modular radio access network (RAN).
Now, more than 70% of their high-band radios are now Ericsson Radio System- and 5G-ready in Greater Jakarta, as are nearly 100% of base-band radios. When compared to the previous RBS 6000 series, these improvements have led to energy savings up to 20–30%.
By the end of Indosat Ooredoo’s migration to LTE, the telecom company had already achieved the highest spectral efficiency in all of Jakarta, and it was producing more traffic on fewer sites than its competitors.
Activating energy-saving software
However, building a more sustainable network is easier said than done. In fact, most of the time, when communication service providers (CSPs) seek to reduce energy consumption, operators are often concerned that the customer experience will suffer. But, figure 2 shows that during the 2018 trial Ericsson and Indosat Ooredoo were able to increase efficiency without a substantial impact on key performance indicators.
Along with keeping KPIs high, Indosat Ooredoo saw an average energy savings of 8% by activating several energy-saving features, including Micro Sleep Tx, Low Energy Scheduler Solution (LESS), and MIMO Sleep Mode.
Operating site infrastructure intelligently
In another effort to building a more sustainable future, Indosat Ooredoo also embraced Ericsson’s Energy Infrastructure Operations (EIO) — an artificial intelligence (AI)-powered, data-driven operations solution that gives CSPs the ability to reduce opex and emissions simultaneously. However, for Indosat Ooredoo to fully embrace Ericsson’s EIO, four steps needed to be completed.
In the first, sensors were deployed to monitor site infrastructure in real time to search for energy leaks and benchmark energy consumption to identify anomalies. Once that was completed, the data analysis pinpointed areas where immediate improvements could be made, including automated configuration changes in passive infrastructure to ensure power savings and implementation of appropriate temperature settings for the air.
In the last two steps, EIO’s AI and automation tool suite was deployed to enable real-time savings with closed loop automation. It also enabled a prediction algorithm to identify which RAN cells could be put to sleep. By using the locking criteria sets defined by Indosat Ooredoo, this algorithm not only provided predictions on which cells to be put to sleep, but it also actuated the locking and unlocking of radio cells in real-time.
In the end, Ericsson’s EIO was able to help Indosat Ooredoo reduce energy bills up to 3.6% and CO2 emissions by 4% on the sites where this solution is deployed.
Breaking the energy curve
With Ericsson’s support, Indosat Ooredoo has shown that it is possible to increase data traffic while reducing power consumption. The Indonesian telecom company is already ahead of schedule in terms of meeting its energy saving targets and is likely to reach its goal.
It has also been enjoying the financial savings that come with reducing power consumption and the environmental benefits from the drop in CO2 emissions.
But through the efforts Indosat Ooredoo made, hopefully now other CSPs can see that breaking the energy curve is a realistic, and necessary, goal.
About Ericsson
Ericsson enables communications service providers to capture the full value of connectivity. The company’s portfolio spans Networks, Digital Services, Managed Services, and Emerging Business and is designed to help our customers go digital, increase efficiency and find new revenue streams. Ericsson’s investments in innovation have delivered the benefits of telephony and mobile broadband to billions of people around the world. The Ericsson stock is listed on Nasdaq Stockholm and on Nasdaq New York.
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