Device and method of managing data of distributed antenna system

A data management device of a distributed antenna system, the data management device comprising:

• a processor configured to receive a package file including firmware files which are currently and respectively installed in a plurality of devices constituting the distributed antenna system, unpackage the package file, and determine a target device requiring firmware update by comparing version information of the package file with version information of each of the firmware files included in the unpackaged package file;
• and
• a transmitter configured to transmit a latest version of a firmware file to a top node device corresponding to a top node of the target device according to a result of the determination of the processor,
• wherein the package file comprises the latest version of the firmware file, the firmware files, and the version information of each of the firmware files,
• wherein the version information of the package file is identical to version information of the latest version of the firmware file, and
• wherein the transmitter is configured to transmit the latest version of the firmware file along with information of the target device to the top node device so that the latest version of the firmware file is forwarded to the target device by other devices in sequence.