L-band

Telecommunications use

In January 2025 China Telecom Satellite Application Technology Research Institute, in association with Huawei, and others industry announced the Tiantong was capable of providing regular smartphones bidirectional access to satellite communications within their allocated L-band frequency (as opposed to specific satellite phones). Starlink has beta-tested a similar direct-to-cell service with T-Mobile since December 2024, operating in the upper L-Band (1900 MHz).