US carriers to address airline safety concerns over C-band spectrum In an open letter, AT&T, Verizon, T-Mobile US and UScellular agreed to take voluntary steps to allay worries about aviation safety and allow these telecom companies to fully utilize their C-band spectrum. According to the letter, the steps are intended to minimize operational impact on C-Band operations and support full-power deployments across the C-Band spectrum. In the past, airlines have resisted the introduction of C-band spectrum for 5G services due to concerns over interference with aircraft altimeters. To assure the secure coexistence of C-band frequencies and radio altimeters, which are more than 220 MHz apart, the FCC has issued licensing and technical standards. Read the full article. Deutsche Telekom now owns a 50.2% stake in T-Mobile US According to CEO Tim Höttges, Deutsche Telekom now owns 50.2% of T-Mobile US, completing a long-term objective initially stated at the company’s 2021…