Method for accepting qos request, and apparatus and computer readable recording medium providing the same

An apparatus for accepting QoS request for utilizing resources of a network in a predetermined quality, comprising:

• a resource unnecessity notification accepting part for receiving, from a terminal connected to the network, a resource unnecessity notification notifying that resource allocated to the terminal has become unnecessary;
• a free resource information holding part for holding, as free resource information, information on a free resource which is a resource notified by the resource unnecessity notification as an unnecessary resource;
• a QoS request determination part for determining whether the free resource meets the QoS request received from the terminal, on the basis of the free resource information held by the free resource information holding part;
• a resource allocation part for allocating the free resource to the terminal when the free resource meets the received QoS request, and transmitting information on the allocated free resource to the terminal;
• and
• a QoS request accepting part for receiving a QoS request from the terminal, transmitting the received QoS request to a resource manager for managing resources in the network when the free resource does not meet the received QoS request, receiving, from the resource manager, information on a resource allocated to the terminal by the resource manager when there is a resource meeting the received QoS request left in the resource manager, and transmitting the information on the allocated resource to the terminal.

A computer readable recording medium storing a program to accept a QoS request for utilizing resources of a network in a predetermined quality, the program, when executed, causing a computer to perform a process comprising:

• performing a free resource information holding procedure comprising:
• receiving, from a terminal connected to the network, a resource unnecessity notification indicating that resource allocated to the terminal has become unnecessary, and holding, as a free resource information, information on free resource which is resource notified by the resource unnecessity notification as unnecessary resource;
• performing a QoS request determination procedure comprising:
• receiving the QoS request from the terminal, and determining whether the free resource held by the free resource information holding procedure meets the received QoS request or not on the basis of the free resource information held by the free resource information holding procedure;
• performing a resource allocation procedure comprising:
• allocating the free resource to the terminal when the free resource meets the received QoS request, and transmitting information on the allocated free resource to the terminal;
• and
• performing a resource manager inquiry procedure comprising:
• transmitting the received QoS request to a resource manager for managing resources in the network when the free resource does not meet the received QoS request, receiving from the resource manager information on resource allocated to the terminal by the resource manager when there is resource meeting the received QoS request left in the resource manager, and transmitting the information on the allocated resource to the terminal.