A method of operation of a network (10) of radio stations (e.g. 11, 12 and 13) in which each radio station communicates with at least two other radio stations. A message (32) is sent and a corresponding reply (35) is received between first and second stations (11 and 12). Similar messages are sent between...http://www.google.es/patents/US6108315?utm_source=gb-gplus-sharePatente US6108315 - Radio network and method of operation with location computation
Radio network and method of operation with location computation