Patent ID: 8223701

Claim:
A communication apparatus which accepts a resource reservation requested by a requester apparatus, comprising; a resource reservation/use history table which includes, for each requester apparatus, a resource reservation state indicating a state of resource reservation having been reserved in the past and a resource use state indicating a use state of reserved resource having been actually used in the past; a resource reservation acceptance judging portion for accepting a resource reservation request from the requester apparatus based on a resource use probability obtained by dividing a value indicated in the resource use state by a value indicated in the resource reservation state corresponding to the requester apparatus included in the resource reservation/use history table; and a resource management table which includes, for each requester apparatus, a request resource capacity requested by the requester apparatus and a resource use state indicating whether the request resource capacity is being used or being reserved, wherein the value indicated in the resource reservation state is the number of times that the resource reservation has been performed in the past, and the value indicated in the resource use state is the number of times that the reserved resource has been actually used in the past, and the resource reservation acceptance judging porting accepts the resource reservation request when the calculated resource use probability exceeds a predetermined reservation acceptance threshold value, and wherein the resource reservation acceptance judging portion takes a total sum of the request resource capacity being used, being reserved and being requested for all of the requester apparatuses in the resource management table when the calculated resource use probability exceeds a predetermined reservation acceptance threshold value, and accepts the resource reservation request when the total sum of the request resource capacities is less than a total resource capacity available in own communication apparatus.