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Ministry of Internal Affairs and Communications moves ahead with 5G conversion of existing 4G frequency band ── Softbank CTO reveals-Engadget Japan version

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Mr. Miyagawa of CTO of SoftBank said that the Ministry of Internal Affairs and Communications seems to move ahead on lifting the ban on 5G conversion of the frequency band currently used for 4G.

Miyagawa pointed out that 5G frequencies currently allocated for 5G are difficult to deploy nationwide due to interference with artificial satellites. "(The Ministry of Internal Affairs and Communications seems to be moving forward with 5G conversion of existing 4G frequencies), so I would like to fully deploy (at the time of 5G conversion of existing 4G frequency bands) at the stage of moving forward."

SoftBank is aiming for a 90% 5G population coverage by the end of FY2021. Miyagawa stated that the conversion of existing 4G frequencies to 5G is indispensable for achieving this.

In 5G, it is called "Dynamic Spectrum Sharing" (DDS), which allows you to deploy 5G services while maintaining 4G services in existing 4G frequency bands.How it worksIt is now possible to simultaneously deploy 5G services using 4G frequencies without affecting existing 4G networks.

Softbank plans to launch 5G commercial service at the end of March.

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