Patent ID: 8576814
Filing Date: 2013-11-05
Classification: H04L,H04W

Abstract:
1. An access point apparatus for a wireless network system, comprising: an internet protocol (IP) address acquisition portion that acquires, from a network, an IP address of a management device that holds a list of wireless control devices to each of which the access point apparatus can be subordinates; a list acquisition portion that acquires the list from the management device via the network by using the IP address of the management device; and a determination portion that transmits a packet including both a maximum TTL (Time To Live) value and a distance confirmation request message, to the wireless control devices registered in the list, and determines a wireless control device to which the access point apparatus is subordinate, based on a response received from the wireless control devices that have received the distance confirmation request message, wherein the response includes a TTL value that is given by decrement of the maximum TTL value by one when the distance confirmation request message passes through a network node, and wherein the determination portion determines the wireless control device from which the access point apparatus receives the response including the TTL value greater than each of the TTL values received from other wireless control devices, as the wireless control device to which the access point apparatus is subordinate.