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Technology
#Rakuten Mobile#KDDI#Japan

Rakuten Mobile and KDDI start joint R&D on telecom energy use

Source: telecoms.comMay 18, 2026

Rakuten Mobile and KDDI said they will jointly research ways to reduce energy consumption in data centres and virtualised radio access networks in Japan.

TL;DR
  • Rakuten Mobile and KDDI announced a joint research and development project.
  • The work will focus on rising power use in data centres and virtualised RAN.
  • The companies are Japanese telecom operators.

Rakuten Mobile and KDDI are telecom operators in Japan. The companies said they will combine research and development efforts to address higher electricity use linked to data centres and virtualised RAN, or virtualised radio access networks.

The announcement centres on network energy consumption rather than consumer eSIM services. The source says the companies will work together on the issue as power demand increases in telecom infrastructure.

The source does not provide a launch date, financial terms, technical targets, or deployment timeline. It states that Rakuten Mobile and KDDI will pit their combined research and development resources against rising energy consumption in data centres and virtualised RAN.

Related questions

  • What did Rakuten Mobile and KDDI announce?
  • What telecom infrastructure will the joint research target?
  • Which country are Rakuten Mobile and KDDI based in?

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