Data transceiving device and method in repeater apparatus

A method of transmitting and receiving data, comprising:

• receiving, by a transfer unit, an inbound packet including an IP address and a unique port number, as a port number, for uniquely identifying a specific radio unit and a specific layer splitter connected to the specific radio unit;
• changing, by the transfer unit, the inbound packet to an adjusted inbound packet by changing the IP address to an internal IP address of the specific layer splitter corresponding to the unique port number while maintaining the unique port number as the port number, and transmitting the adjusted inbound packet to the specific layer splitter identified by the unique port number;
• and
• receiving, by the specific layer splitter, the adjusted inbound packet from the transfer unit, changing the adjusted inbound packet to a re-adjusted inbound packet by changing the IP address to an internal IP address of the specific radio unit and changing the unique port number to an internal port number of the specific radio unit, and transmitting the re-adjusted inbound packet to the specific radio unit identified by the unique port number,
• wherein the unique port number is assigned according to:
• a specific cell number, of a plurality of cell numbers, corresponding to the specific layer splitter connected to the specific radio unit,
• a specific internal port number, of a plurality of internal port numbers, to which the specific layer splitter and the specific radio unit are connected, and
• a specific cascade number, of a plurality of cascade numbers associated with the internal port number.