Method and system for processing information

An information processing method of an information processing system including an information providing apparatus for providing a service, and a mobile terminal for receiving the service, the method comprising:

• transmitting data to the mobile terminal present in a first area defined by the overlapping communication coverage areas of a first directional antenna and a second directional antenna, wherein transmitting data includes transmitting first data using the first directional antenna and transmitting second data using the second directional antenna;
• receiving the data in the first area;
• and
• performing authentication using the data, wherein the data received serves as authentication information only when the first data and the second data are received within a predetermined period of time.

An information processing system comprising an information providing apparatus for providing a service, and a mobile terminal for receiving the service, the information providing apparatus comprising:

• a plurality of directional antennas including a first directional antenna and a second directional antenna defining a first area in which communication coverage areas of the directional antennas overlap;
• and
• a plurality of data communication units transmitting data, including first data transmitted using the first directional antenna and second data transmitted using the second directional antenna, to the mobile terminal in the first area, and receiving authentication information from the mobile terminal,
• wherein the authentication information is provided by the mobile terminal only when the first data and the second data are received by the mobile terminal within a predetermined period of time, and
• the mobile terminal comprising:
• a data receiving unit for receiving the data in the first area;
• and
• a data processing unit for processing the data.