To provide a radio communication apparatus having a plurality of antennas, capable of achieving efficient power consumption based on a connection state of a wireless LAN slave unit, and to provide a control method therefor.

When the radio communication apparatus is started, only one transmitter-receiver circuit is made effective among the plurality of transmitter-receiver circuits and the other transmitter-receiver circuits are made ineffective. When a wireless LAN slave unit is connected with the radio communication apparatus, the plurality of transmitter-receiver circuits of the radio communication apparatus are made effective.