Method and apparatus for transmitting channel information in cognitive radio network and method and apparatus for performing channel switching

摘要

A method and apparatus for transmitting channel information used by a station form among TV white space channels, and a method and apparatus for performing channel switching are disclosed. A method for transmitting information of a channel used by a station from among TV white space channels includes determining one or more channels used by the station from among channels contained in a plurality of OFDM blocks, wherein each OFDM block includes one or more contiguous channels from among the TV white space channels, generating a message including first information indicating the lowest channel number from among channels contained in a first OFDM block from among the plurality of OFDM blocks, second information indicating the lowest channel number from among channels contained in a second OFDM block, third information indicating the one or more channels used by the station as bitmap information, and fourth information indicating a total amount of bandwidth used by the station, and transmitting the generated message.

主权项

1. A method for transmitting information of a channel used by a station from among TV white space channels, the method comprising:
determining one or more channels used by the station from among channels contained in a plurality of OFDM blocks separately located in a frequency domain, each of the plurality of OFDM blocks including one or more contiguous channels from among the TV white space channels; generating a message including first information indicating the lowest channel number from among the channels contained in a first OFDM block of the plurality of OFDM blocks, second information indicating the lowest channel number from among the channels contained in a second OFDM block of the plurality of OFDM blocks, third information indicating the one or more channels used by the station as bitmap information, and fourth information indicating a total amount of bandwidth used by the station, the one or more channels used by the station being channels indicated by a combination of: the lowest channel number from among the channels contained in the first OFDM block, the lowest channel number from among the channels contained in the second OFDM block, the bitmap information, and the total amount of bandwidth; and transmitting the generated message, wherein, if the total amount of bandwidth is identical to a half of an amount of each OFDM block, the message does not include the third information.