Patent ID: 8614982

Claim:
A network apparatus comprising: a scheduling information storage unit that stores therein a plurality of pieces of scheduling information for scheduling in advance transmission and reception timing of wireless frames that are transmitted and received by a plurality of communication apparatuses, the wireless frames including a wireless frame transmitted and received using a wireless communication method for a network side and a wireless frame transmitted and received using a wireless communication method for a local side; a scheduling information assigning unit that assigns one of the pieces of scheduling information stored in the scheduling information storage unit to a communication apparatus managed by the network apparatus; a scheduling information notifying unit that notifies the communication apparatus of the piece of scheduling information assigned by the scheduling information assigning unit; and a radio wave interference notification receiving unit that receives a notification indicating that a radio wave interference is detected from the communication apparatus, and scheduling identifying information together with the notification, the scheduling identifying information being exchanged among communication apparatuses positioned within a radio wave interference range and being for identifying the pieces of scheduling information assigned to the communication apparatuses, wherein when the radio wave interference notification receiving unit receives the notification indicating that the radio wave interference is detected, the scheduling information assigning unit selects another one of the pieces of scheduling information that is different from the piece of scheduling information currently assigned to the communication apparatus that has transmitted the notification, and newly assigns the selected piece of scheduling information to the communication apparatus that has transmitted the notification, the scheduling information notifying unit notifies the communication apparatus that has transmitted the notification of the piece of scheduling information newly assigned by the scheduling information assigning unit, and the scheduling information assigning unit selects one of the pieces of scheduling information that matches the scheduling identifying information received by the radio wave interference notification receiving unit and newly assigns the selected piece of scheduling information to the communication apparatus that has transmitted the notification.