Abstract: A system and method of providing broadcast channel information generates a join message to join a broadcast channel information multicast group, sends the join message to a network, and stores a broadcast channel information table received from the network. Therefore, there is no need to receive broadcast channel information every time a set-top box is turned on or off.

Abstract: An access point device and a technique for the access point device is for setting a channel of the access point device. The method for setting the channel of the access point device includes: a peripheral search for receiving information from peripheral access point devices, and searching channel numbers used by the peripheral access point devices; an optimal channel number decision selecting one of the channel numbers except for the used channel numbers, and deciding whether the selected channel number is an optimal channel number; and a channel setting for setting the selected channel number as a channel number when the selected channel number is the optimal channel number. As a result, the optimal channel number is automatically set so that the access point device can perform communication without being interrupted by the peripheral access point devices.