Patent ID: 8406138

Claim:
A wireless communication terminal, comprising: other terminal existence confirmation means for confirming existence of another wireless communication terminal that allows mutual direct wireless communication with the wireless communication terminal itself; topology information management means for managing information relating to the other wireless communication terminal confirmed by the other terminal existence confirmation means and information on topology of a network that is received from the other wireless communication terminal; path derivation means for deriving an optimum path to a transmission destination on the basis of the topology information managed by the topology information management means; and quality of service (QoS) information collection means for transmitting, only upon reception of a QoS collection request instruction after the optimum path is derived by the path derivation means, a QoS request packet that only traverses each terminal included in the optimum path derived by the path derivation means to collect QoS information for at least a portion of the optimum path derived by the path derivation means, wherein the QoS information collection means collects the QoS information for at least the portion of the optimum path by transmitting the QoS request packet, upon determination in which at least a predetermined QoS item constituting a collection target is stored on the optimum path derived by the path derivation means and by receiving, from the optimum path, a packet in which at least QoS information corresponding with the predetermined QoS item is stored.