Abstract: An apparatus and a method of correcting output characteristics in a power combination apparatus are provided. The method includes synchronizing Digital UpConverters (DUCs) included in a plurality of power amplifiers, adjusting a fine delay between signals outputted by the DUCs based on a Frequency Assignment (FA), combining fine delay-compensated signals output from the plurality of power amplifiers, and outputting the combined signal.

Abstract: An apparatus and a method of correcting output characteristics in a power combination apparatus are provided. The method includes synchronizing Digital UpConverters (DUCs) included in a plurality of power amplifiers, adjusting a fine delay between signals outputted by the DUCs based on a Frequency Assignment (FA), combining fine delay-compensated signals output from the plurality of power amplifiers, and outputting the combined signal.

Abstract: A configuration management system and method uses representative object instances which serve to call information about unregistered object instances through a representative object instance in order to enable positive node management (including generation, deletion, change and retrieval). In the apparatus of the invention, during initialization of a managed system, an agent stores initialization information about system configuration as object information, and generates a representative object instance representing the object information. Upon receiving an object call from a network management system (NMS) manager, the agent performs a command for a called object through the representative object instance, and forwards a result of the command to the NMS manager.

Abstract: A network management system for a soft Permanent Virtual Circuit (PVC) and a corresponding method include: a plurality of managed systems; an upper manager adapted to fetch information for Managed Objects (MOs) from the plurality of managed systems and to issue an instruction to the MOs; and a workstation, including respective agents connected to the plurality of managed systems in a one-to-one manner, adapted to deliver the instruction from the upper manager to the plurality of managed systems on behalf of the upper manager and to deliver the MO information from the plurality of managed systems to the upper manager, the workstation managing the respective agents in an integrated manner.