Patent ID: 8688032

Claim:
A repeater installed in a moving object, comprising: a link antenna module having a plurality of link antennas steered to predetermined directions, for wirelessly communicating with a Base Transceiver Station (BTS); a link antenna path setting module for selecting at least one of the plurality of link antennas of the link antenna module and connecting a path between the selected link antenna and a rear end; a service antenna module having at least one service antenna installed within the moving object, for wirelessly communicating with Mobile Stations (MSs) within the moving object; a relay signal processing module connected to the link antenna module through the link antenna path setting module, for processing transmission and reception relay signals between the link antenna module and the service antenna module; a movement information module for measuring current movement information about the moving object and providing the current movement information; a received signal measuring module for measuring a received signal of the link antenna module and providing current propagation environment information; and an antenna control module having an antenna selection controller for detecting a current movement state and a current propagation environment based on the information received from the received signal measuring module and the movement information module, storing and/or updating the information in an internal propagation environment information storage, selecting a serving BTS for each location based on the stored information, and controlling the link antenna path setting module to select a link antenna that receives the best signal from the selected BTS.