A method in a mobile radiotelephone system in which an address is added to a symbol message in a control channel in order to exclude interfering connections operating on the same radio frequency as the actual connection between a base station and a mobile station. According to the proposed method, the...http://www.google.es/patents/US5142539?utm_source=gb-gplus-sharePatente US5142539 - Method of processing a radio signal message
