The 5G band n261 is a subset of the n257 (28 GHz) band, established to match the United States’ 28 GHz band plan . mmWave in 28 GHz band is a widely trialled / tested 5G band. Development of mmWave 28 GHz band is ongoing and is headed up by the 3GPP TR 38.815.
Read moreHow many 5G bands are there in 5G?
5G comes in three major bands which are Low-frequency bands, Medium range frequency bands and High range frequency bands and not all bands are equal. Low and Mid band frequencies come under the Sub-GHz umbrella which is similar to the 4G LTE network that comes in Sub 6 GHz umbrella as well.
Read more