A mobile satellite radiotelephone system uses some of the capacity of a fixed satellite radiotelephone system in areas of congestion. Capacity sharing is obtained by providing at least one fixed retransmitting station in an area of overlap between the fixed and mobile satellite radiotelephone systems....http://www.google.de/patents/US6052586?utm_source=gb-gplus-sharePatent US6052586 - Fixed and mobile satellite radiotelephone systems and methods with capacity sharing
