Patent attributes
A repeater for relaying communication between a base and a monitor which constitute a wireless LAN, includes a control means wherein, when reception quality of received data from the base by the monitor is lower than threshold in a direct communication mode in which the base and the monitor are communicating directly, the repeater is set as an indirect mode of relaying communication between the base and the monitor according to a request from the base based on a request from the monitor, and when reception level of a beacon received by the monitor from the base is equal to or greater than the threshold in the indirect communication mode in which the base and the monitor are communicating via the repeater, the repeater is set, according to a request from the monitor, as a non-indirect mode in which communication between the base and the monitor are not relayed.