Wireless communication network system and optical-electrical conversion module

A wireless communication network system comprising:

• a signal source terminal;
• an electrical-optical conversion module electrically connecting with the signal source terminal, for receiving one or more electrical signals sent from the signal source terminal and converting the one or more electrical signals into one or more optical signals;
• an optical-electrical conversion module;
• and
• a user terminal electrically connecting with the optical-electrical conversion module, wherein the optical-electrical conversion module is configured for receiving the one or more optical signals and converting the optical signals into one or more electrical signals;
• the signal source terminal, the user terminal, the electrical-optical conversion module and the optical-electrical conversion module cooperatively define a wireless optical communication network, thereby providing communication between the signal source terminal and the user terminal.