PROBLEM TO BE SOLVED: To prevent decrease in operation stability due to replacement or addition of functions which are made into components.;SOLUTION: A resource securing device includes any of an allocation unit or a limit unit for securing resources for components or an interface for explicitly securing them when a component into which a function different for each service or each communication carrier is made is added or replaced.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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