April 20, 2021 Technical Requirements for Mobile Communications Systems in the 2.3 GHz Band as Part of Technical Requirements for New-generation Mobile Communications Systems

Partial report from Information and Communications Council

The Ministry of Internal Affairs and Communications (MIC) has today received a partial report from the Information and Communications Council (Chaired by UCHIYAMADA Takeshi, Chairman of the Board of Directors of Toyota Motor Corporation). The report, which specifies some of the technical requirements for mobile communications systems in the 2.3 GHz band, was issued in partial response to inquiry number 2038 of October 12, 2016, about the technical requirements for new-generation mobile communications systems.

1. Background

The number of subscribers to mobile communications systems, including mobile phones, in Japan is increasing year by year. New frequencies will need to be secured to respond to the mobile communication traffic expected to increase in the future.
On the other hand, the tightness of frequencies, which are finite radio resources, is increasing. The more efficient use and shared use of frequencies will be indispensable for new frequency allocation.
In response to this situation, the Information and Communications Council has been studying the application of dynamic sharing (dynamic frequency sharing) with consideration of the geographical and temporal operational status of existing systems. This study has been made to additionally allocate 2.3 GHz band frequencies to mobile communications systems with a view to complementary frequency use in mobile phones. In this connection, MIC has today received a partial report on the technical requirements.

2. Outline of the partial report

The published material is in Japanese only.

3. Future plans

With consideration of the partial report, MIC will promptly make the institutional development of relevant regulations.

Contact

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International Policy Division, Global Strategy Bureau, MIC

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