Base station for wireless communication; base station transceiver for wireless communication; base station antenna for wireless communication; base station controller for wireless communication; mobile switching apparatus for wireless communication; mobile switching apparatus for mobile communication; signal repeater for wireless communication; signal repeater for mobile communication; signal repeater for DMB (digital multimedia broadcasting); router for wireless communication; software for operating base station of wireless communication system; software for operating mobile switching apparatus of wireless communication system; software for operating signal repeater of wireless communication system; software for synchronization of wireless communication data; software for testing wireless communication data; software for operating router of wireless communication system; server for transmitting and receiving wireless communication data; server for authentication for wireless communication network access; server for charging for usage of wireless communication system; server for assigning IP address to wireless communication service subscriber; server for providing audio/video streaming contents via wireless communication network; server for providing audio/video streaming contents via the Internet; software for operating server for transmitting and receiving wireless communication data; software for authentication for wireless communication network access; software for charging for usage of wireless communication system; software for assigning IP address to wireless communication service subscriber; software for wireless communication interface; portable terminal for wireless communication; mobile phone; portable terminal for wireless Internet; portable terminal for DMB (digital multimedia broadcasting); GPS (global positioning system) terminal for vehicles; navigation apparatus; navigation terminal for vehicles; MMP (multimedia player); PMP (portable multimedia player); divx player; digital signal processor; apparatus for adjusting temperature of wireless communication network elements; charging apparatus for radio sets; modem cards; chipsets; communication chipsets; wireless LAN (local area network) cards; modem for wireless communication; Internet phone gateway system; display apparatus using PDP (plasma display panel); display apparatus using LCD (liquid crystal display)