In the recent years, many companies have come up with ambitious commercial satellite launch plans. However, at the current stage, tracking telemetry and command (TT&C) of these satellites relays heavily on China’s TT&C network. The service supplied by China’s TT&C network for commercial satellite is limited and very expensive. Therefore, a commercial satellite network is urgently to be developed. This paper researches on the European Telecommunication Standards Institute (ETSI) Telemetry Command and Ranging (TCR) standards, and discusses on the TT&C network of commercial satellites, including modulation, ranging, data framing, analysis of typical scenarios, etc.