Switching system, a transmission device, a transmission method, and a switching method for satellites
AssigneeAlcatel
InventorCeline Haardt
Life of this patent
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Abstract
A data switching system for a satellite in a satellite data transmission system which relays from a terrestrial sending area to a terrestrial receiving area via the satellite data including payload data and associated control data which constitutes respective switching requests and provides data on the switching of the payload data. The system analyzes data on the basis of a signal conveying the control data and switches the payload data as a function of the result of the analysis of the associated control data to at least one of a plurality of sending ports for sending it to the receiving area. Only the control data is analyzed. The payload data is not analyzed.
Claims25
A data switching system for a satellite in a satellite data transmission system adapted to relay from a terrestrial sending area to a terrestrial receiving area via said satellite data including payload data and associated control data which comprises respective switching requests and is adapted to provide data on the switching of said payload data, which system includes means for analyzing data on the basis of a signal conveying said control data and means for switching said payload data as a function of the result of said analysis of said associated control data to at least one of a plurality of sending ports for sending it to said receiving area, wherein said data analyzer means are adapted to analyze only said control data and said payload data is not analyzed.
A data transmission device for ground stations of a satellite data transmission system adapted to relay from sending ground stations to receiving ground stations via said satellite data including payload data and associated control data constituting respective switching requests and adapted to provide data on said payload data, which device includes adapter means for transporting said data addressed to said satellite and in which device said control data is analyzed separately from said payload data packets on board said satellite.
A method of transmitting data in a satellite data transmission system adapted to relay from a terrestrial sending area to a terrestrial receiving area via said satellite data including payload data and control data constituting respective switching requests and adapted to provide data on the switching of said payload data to be carried out on board said satellite, said method transmitting payload data on first channels and control data on second channels.
A method of switching data for a satellite in a satellite data transmission system adapted to relay from a terrestrial sending area to a terrestrial receiving area via said satellite data including payload data and associated control data constituting respective switching requests and adapted to provide data on the switching to be applied to said payload data, said method analyzing only said control data, and not said payload data, and switching said payload data to different sending ports to said receiving area as a function of the analyzed switching requests.
Dependencies are inferred from the claim text.