Patent ID: 8295705

Claim:
A communication control device for providing Visible Light Communication (VLC) using Time Division Multiplexing (TDM) to at least one cell, wherein each cell includes two or more light sources mapped to the cell and the two or more light sources transmits data received from one or more VLC terminals to the communication control device, and transmits data received from the communication control device to the one or more VLC terminals, the communication control device comprising: a storing device for storing information for a plurality of cells; and a processor for determining and grouping at least one light source to be included in a first cell according to a generated user service, mapping the grouped at least one light source to the first cell, allocating a time slot used to provide the user service to the first cell, transmitting data associated with the user service to a first VLC terminal through the at least one light source mapped to the first cell using the allocated time slot, detecting a location of the first VLC terminal located in a service area of the first cell on a real-time basis, determining whether an adjacent light source of a first light source corresponding to the detected location is included in the first cell, when the adjacent light source is not included in the first cell, mapping the adjacent light source to the first cell, and transmitting the data associated with the user service to the first VLC terminal through the adjacent light source.