In a computer system composed of a computer in which a plurality of VMs are operated and a storage system, when a patch of an OS in the VM is applied, update data ac companying the application of the patch is stored in each VM image, causing increase of load of the storage system accompanying the concentration of read requests and the elongation of the patch applying process time. The method invented comprises steps of ranking lots, allocating equipment to the exit step of queue time, calculating and determining the optimal allowable queue time based on utilization loss and rework percentage, calculating the next available time for equipment, calculating earliest release time, and releasing lotbatch and pre-assign it to the equipment at exit step. The given UE refrains from measuring the reverse-link channel, as instructed by the AN, based on the data being associated with a communication session of a given type.