SoftBank tests dynamic nullforming for NTN-mobile spectrum sharing

SoftBank said it successfully tested dynamic nullforming technology to enable spectrum sharing between non-terrestrial networks and traditional mobile networks. The test targeted interference management between non-terrestrial networks, or NTNs, and terrestrial mobile services using the same spectrum.

SoftBank described dynamic nullforming as a way to suppress interference when non-terrestrial and terrestrial networks operate in shared spectrum. The source did not provide test dates, spectrum bands, locations, device names, or performance figures.

Spectrum sharing between satellite-based non-terrestrial networks and terrestrial mobile operators is a current issue in mobile network development as operators and vendors look for ways to integrate NTN services with existing cellular systems. This work sits alongside broader industry activity around NTN support in mobile standards and network architecture, although the source did not name specific standards or partner companies.