3 ms·
Bands are never "sold" in Japan but assigned to MNO. Those bands are all in operation (some sort of). I found a research from MNO to use 4.9-5.0GHz for 5G near
by fomine3 5y ago
Bands are never "sold" in Japan but assigned to MNO. Those bands are all in operation (some sort of).
I found a research from MNO to use 4.9-5.0GHz for 5G near airport: https://www.soumu.go.jp/main_content/000777475.pdf https://www.soumu.go.jp/main_content/000777475.pdf
tldr: they need 5MHz guard band and emission adjustment for small cell near 5km from airport / for larger cell near 20km from airport.
- onphonenow 5y agoI was thinking they'd land at something in range of 20Mhz (10% of a full sweep). for guard. That said, the actual sweep is in .1Mhz or less steps isn't it so you should be able to get away with a small guard I think? What is the actual receiver bandwidth?