Method and apparatus for transmitting and receiving channel information in wireless communication system

摘要

The present invention relates to a method and apparatus for performing communication by obtaining available channel information through an unlicensed device in which operations are permitted within an available channel and is not used by a licensed device in a white space band, includes the steps of: transmitting a message for requesting available channel information to a database device; receiving the available channel information including first information for indicating a format of the available channel information and second information for identifying the available channel, in response to the message for requesting the available channel information; and obtaining the second information using the first information and transmitting and receiving signals within the available channel corresponding to the second information, wherein the format of the available channel information can be changed according to country.

主权项

1. A method of performing a communication by a station in a whitespace band, the method comprising:
transmitting, by the station to a database device, a channel scheduling request frame for querying scheduling information on available channels; and receiving, by the station from the database device, a channel scheduling response frame including the scheduling information on the available channels, wherein the channel scheduling response frame includes a channel number field, wherein, if a channel availability time field is included in the channel scheduling response frame, a value of the channel availability time field indicates a starting time when a channel indicated by the channel number field is available for operation, and wherein, if the channel availability time field is not present in the channel scheduling response frame, the station takes a time that the channel scheduling response frame is received as the starting time.