Patent ID: 7778647
Filing Date: 2010-08-17
Classification: H04H,H04L,H04W

Abstract:
1. A method for providing a location based service (LBS) in a digital multimedia broadcast (DMB) system, the method comprising: in a mobile station: receiving a transmitter identifier (ID) from a DMB transmitter; obtaining location information based on the transmitter ID; determining a service area for the LBS based on the obtained location information; updating stored location information in the mobile station based on the obtained location information; selecting a type of LBS data to be received; receiving a data frame comprising at least broadcasting image data or the LBS data from the DMB transmitter, the LBS data comprising information pertaining to the determined service area; determining whether the LBS data is included in the received data frame by checking a presence of a LBS data identifier, the presence of the LBS data identifier in the received data frame indicating that the LBS data is included in the received data frame and the absence of the LBS data identifier in the received data frame indicating that the broadcasting image data is included in the received data frame; determining whether the LBS data in the received data frame corresponds to the selected type; and obtaining the LBS data corresponding to the selected type, wherein the DMB transmitter is located within the service area and the LBS is unidirectional and is received by utilizing the location information of the mobile station obtained from the DMB transmitter.