1. Method for transmitting media data having access unit divided into media fragment units in heterogeneous network

2. We focus on: Semantic-based profile for researchers; Integrating Academic data; Accurately searching the heterogeneous network; Analyz

3. Disclosed are a base station control device and a method for operating same, the base station control device performing operation of a base station, suitable for a heterogeneous network environment, and controlling of carrier aggregation (CA) operation, thereby enabling acquisition of an optimum system throughput by means of CA in a heterogeneous network environment.