Japan’s telecoms regulator the Ministry of Internal Affairs and Communications (MIC) has assigned additional spectrum in the 2.5GHz band to KDDI’s joint venture UQ Communications, Japan Daily Press reports. According to the article, UQ Communications’ rival Softbank BB Corp, a wholly-owned subsidiary of Softbank, has also applied for the spectrum band; the regulator, however, awarded the coveted spectrum to UQ, as it provided ‘better utilisation plans for frequency assets inside buildings and tunnels’. The 2.5GHz frequency band, authorised for the Advanced eXtended Global Platform (AXGP) standard which is (Time Division) TD-LTE compliant, can provide users with download speeds in the range of 30Mbps – 75Mbps. Softbank, however, has reportedly deemed the allocation of the spectrum unfair, and has requested that the records of the award should be made public. Softbank’s CEO Masayoshi Son reportedly announced that the company will take the issue to court and file an administrative lawsuit if the ministry does not disclose these records.