Patent ID: 6317585
Filing Date: 2001-11-13
Classification: H04B,H04L

Abstract:
A mobile satellite communication system comprising:a base station apparatus; anda plurality of mobile terminals coupled to said base station apparatus through a satellite, wherein there are a forward link from said base station apparatus to said plurality of mobile terminals, and a return link from said plurality of mobile terminals to said base station apparatus,wherein said base station apparatus transmits an access control signal to one of said plurality of mobile terminals through said forward link,wherein said one mobile terminal determines whether a correct reception indication data or an incorrect reception indication data is contained in said access control signal, and performs retransmission of said short burst transmission when it is determined that said incorrect reception indication data is contained in said access control signal,wherein said short burst transmission includes a request data indicating that a data which cannot be transmitted by said short burst transmission is transmitted, andwherein said one mobile terminal determines whether a reservation permission data is contained in said access control data, and performs a long burst transmission for said data when it is determined that said reservation permission data is contained in said access control data.