*6.1.2 Satellite communication network solution*

The satellite communication network uses artificial earth satellites as relay stations to relay radio waves, allowing interconnection between two or more earth stations. This network has many advantages, including wide coverage, large communication capacity, good transmission quality, less geographical restrictions, convenient and rapid networking, and easy global seamless connection. However, the main disadvantages of satellite transmission are a delay of about 0.6 seconds for audio and video, high cost of satellite signal transceiver equipment and channel usage at the user end, and high professional

requirements for maintenance personnel. Currently, the satellite communication networking method can provide more than a few megabytes of communication rate, mainly used for mobile medical emergency rescue equipment to participate in telemedicine.
