Available channel information sharing system and available channel information sharing method

An available channel information sharing system sharing available channel information for each unit region, the system comprising:

• a server;
• a first white band device placed in the unit region;
• and
• a second white band device creating positional information and transmitting the created positional information to the server, receiving unit region information and area information corresponding to the positional information from the server, and transmitting available channel information based on channel information of a sensed broadcasting signal to the first white band device when the area information represents an area where is perceptible the broadcasting signal.

An available channel information sharing method, the method comprising:

• creating, by a white band sensing device, positional information;
• transmitting, by the white band sensing device, the positional information to a server;
• receiving, by the white band sensing device, unit region information corresponding to the positional information from the server;
• creating, by the white band sensing device, first available channel information based on channel information of a sensed broadcasting signal;
• and
• transmitting, by the white band sensing device, the first available channel information to a white band device of the unit region represented by the unit region information.