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US 5,689,568 AGranted
Medium access control for a mobile satellite system
AssigneeHughes Electronics Corporation
InventorEnrique Laborde
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Abstract
The present invention provides a medium access control (MAC) layer in a mobile satellite system. The MAC transfers data across the physical channels in the air interface between the mobile terminals, the satellite and the gateways. The MAC of the present invention optimizes for satellite propogation delays and hides the physical transmission media from higher network layers.
Claims14
A method of transferring communication data across an air interface between a satellite and a ground terminal, comprising the steps of:
- segmenting said communication data into uniform partitions;
- protecting said communication data against corruption;
- encrypting said communication data for confidentiality;
- interleaving said communication data to randomize errors;
- and
- multiplexing said communication data with control data into a number of superframes, each of which includes a plurality of frames having a multiplicity of time slots, wherein the control data is located within a particular one of the time slots of each frame and the communication data is located in a different one of the time slots of each frame.
3 more elements
Dependencies are inferred from the claim text.