A telecommunication system has a space segment which includes a satellite carrying a multibeam telecommunications payload and a terrestrial segment comprising gateways for access to a terrestrial network. There is one gateway within a terrestrial coverage of each beam or of a group of beams. User terminals...http://www.google.com/patents/US6542479?utm_source=gb-gplus-sharePatent US6542479 - Telecommunications system and a multibeam satellite usable in such a system