Patent ID: 8995840
Filing Date: 2015-03-31
Classification: H04B,H04J,H04L

Abstract:
1. A method for providing synchronized data by using visible light communication, the method: receiving a synchronization channel from a mobile communication network, by a first Light Emitting Diode (LED) lighting apparatus; analyzing the received synchronization channel, and extracting a synchronization signal for synchronizing the first LED lighting apparatus with at least one second LED lighting apparatus adjacent to the first LED lighting apparatus; synchronizing transmission of light as illumination and of light as data by the first LED lighting apparatus with the extracted synchronization signal, whereby the transmission is synchronized in time slots; selecting a time slot for the first LED lighting apparatus to transmit a data frame based on an Identification (ID) of the first LED lighting apparatus so as to not overlap with any time slot in which the at least one second LED lighting apparatus transmits a data frame; and transmitting the data frame of the first LED lighting apparatus in the time slot to a mobile terminal, wherein receiving the synchronization channel comprises: