WIRELESS COMMUNICATION APPARATUS AND METHOD, WIRELESS TERMINAL, MEMORY CARD, AND INTEGRATED CIRCUIT

摘要

According to one embodiment, a wireless communication apparatus using a first wireless communication scheme includes a transmitter and controller. The controller which controls IFSs so as to set, one of the first IFS and the second IFS as an IFS used during the first period. the controller sets the second IFS to at least a second period when a channel is idle during a period corresponding to a fourth IFS after one of the IFS is switched from the first IFS to the second IFS and when the channel becomes busy after the period corresponding to the fourth IFS is elapsed, the fourth IFS being an IFS before the transmission of a beacon signal, the second period being one of a plurality of first periods and being a period which includes timing for an estimated cycle of the beacon signal.

主权项

1. A wireless communication apparatus using a first wireless communication scheme, the apparatus comprising:
a transmitter which transmits a frame using one of a first interframe space (IFS) and a second IFS, the first IFS being shorter than a third IFS which is used in a second wireless communication scheme having a coverage area wider than a coverage area of the first wireless communication scheme, the second IFS being longer than the third IFS; and a controller which controls IFSs so as to set, for each first period, one of the first IFS and the second IFS as an IFS used during the first period, wherein when a channel is idle during a period corresponding to a fourth IFS after one of the IFSs is switched from the first IFS to the second IFS, and when the channel becomes busy after the period corresponding to the fourth IFS is elapsed, the controller sets the second IFS to at least one second period, the fourth IFS being an IFS before a transmission of a beacon signal used in the second wireless communication scheme, the second period being one of a plurality of first periods and being a period which includes timing for an estimated cycle of the beacon signal.