The restricted mode is a setting whereby the base station device 1 receives, from at least either one of another base station device and a radio communication apparatus having issued a connection request, second information indicating that a response to the connection request issued by the radio communication apparatus has been issued by the another base station device present in a radio wave coverage area where communication with the base station device 1 is possible, and performs, based on the second information, an operation for lowering a priority level of the radio communication apparatus for assignment to the base station device 1. Examples of the second information include, but are not limited to, for example, the response itself, an acknowledgement (ACK) for the response, and the like. The operation of lowering a priority level for assignment to its own base station device may be, for example, an operation of discarding a connection request, an operation of delaying a response to a connection request, an operation of rejecting a connection request, an operation of recommending assignment to a base station device other than its own base station device, an operation of interrupting processing for assignment to its own base station device, or an operation of causing to interrupt processing for assignment to its own base station device. Examples of the operation of delaying a response to a connection request include, but are not limited to, for example, delaying a response to a connection request by a period of not less than Max Channel Time of a radio communication apparatus, and the like. Examples of the operation of rejecting a connection request include, but are not limited to, for example, transmission of a message for rejection, transmission of a response that includes information (for example, a cause of rejection, and the like) indicating rejection, and the like. Examples of the operation of recommending assignment to a base station device other than its own base station device include, but are not limited to, for example, transmission of information (for example, an address, an SSID, and the like of a base station device other than its own base station device) for recommending assignment to a base station device other than its own base station device, and the like. Examples of the connection request include, but are not limited to, for example, a probe request, an authentication request, an association request, and the like. Examples of the response to a connection request include, but are not limited to, for example, a probe response, an authentication response, an association response, and the like.