A mobile repeater for relaying radio signals between mobile stations and base station of a digital cellular radio network as the repeater moves from cell to cell. The mobile repeater includes a downlink branch for receiving from the base station and retransmitting to the mobile stations, an uplink branch...http://www.google.com.au/patents/US6459881?utm_source=gb-gplus-sharePatent US6459881 - Repeater for radio signals
