Broadcast/narrowcast dual mode satellite
First Claim
1. In a communication satellite for operation in Earth orbit, the improvement comprising:
- a broadcast/narrowcast dual-mode receiving system that receives from one or more terrestrial transmitting stations one or more communication uplink signals that selectively correspond to one or more narrowcast communication signals directed to one or more narrowcast geographic cells or one or more broadcast communication signals directed to one or more broadcast regions, each of which encompasses plural narrowcast geographic cells; and
a broadcast/narrowcast dual-mode transmitting system that transmits one or more communication downlink signals that selectively correspond to the one or more broadcast communication signals being transmitted to the one or more broadcast regions or the one or more narrowcast communication signals being transmitted to the one or more narrowcast geographic cells.
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Accused Products
Abstract
A broadcast/narrowcast dual mode satellite is capable of selectively providing narrowcast operations or broadcast operations. The dual-mode satellite includes a broadcast/narrowcast dual-mode receiving system that receives from one or more terrestrial transmitting stations one or more communication uplink signals that selectively correspond to one or more narrowcast communication signals or one or more broadcast communication signals. Narrowcast communication signals are typically distinct from each other and are directed to one or more narrowcast geographic cells. Broadcast communication signals are directed to one or more broadcast regions, each of which encompasses plural narrowcast geographic cells. The dual-mode satellite also includes a broadcast/narrowcast dual-mode transmitting system that transmits one or more communication downlink signals that selectively correspond to broadcast communication signals and narrowcast communication signals received by the receiving system. Dual-mode satellite is capable of operating in the narrowcast mode or the broadcast mode, either separately or simultaneously together.
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Citations
16 Claims
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1. In a communication satellite for operation in Earth orbit, the improvement comprising:
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a broadcast/narrowcast dual-mode receiving system that receives from one or more terrestrial transmitting stations one or more communication uplink signals that selectively correspond to one or more narrowcast communication signals directed to one or more narrowcast geographic cells or one or more broadcast communication signals directed to one or more broadcast regions, each of which encompasses plural narrowcast geographic cells; and
a broadcast/narrowcast dual-mode transmitting system that transmits one or more communication downlink signals that selectively correspond to the one or more broadcast communication signals being transmitted to the one or more broadcast regions or the one or more narrowcast communication signals being transmitted to the one or more narrowcast geographic cells. - View Dependent Claims (2, 3, 4, 5)
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6. A communication satellite for operation in Earth orbit, comprising:
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a broadcast/narrowcast dual-mode receiving system that receives from one or more terrestrial transmitting stations one or more communication uplink signals that selectively correspond to one or more narrowcast communication signals directed to one or more narrowcast geographic cells or one or more broadcast cast communication signals directed to one or more broadcast regions, each of which encompasses plural narrowcast geographic cells;
a broadcast/narrowcast dual-mode transmitting system that transmits one or more communication downlink signals that selectively correspond to the one or more broadcast communication signals being transmitted to the one or more broadcast regions or the one or more narrowcast communication signals being transmitted to the one or more narrowcast geographic cells; and
a dual-mode communication multiplexer and routing system that selectively channelizes and routes signals between dual-mode receiving system and dual-mode transmitting system for directing transmission of the broadcast or narrowcast communication signals. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A communication satellite method of operation, comprising:
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receiving from one or more terrestrial transmitting stations one or more broadcast/narrowcast communication uplink signals that selectively correspond to one or more narrowcast communication signals directed to one or more narrowcast geographic cells or one or more broadcast communication signals directed to one or more broadcast regions, respectively, each broadcast region encompassing plural narrowcast geographic cells;
selectively channelizing and routing the broadcast/narrowcast communication uplink signals according to locations where they are to be transmitted; and
transmitting one or more broadcast/narrowcast communication downlink signals that selectively correspond to the one or more broadcast communication signals being transmitted to the one or more broadcast regions or the one or more narrowcast communication signals being transmitted to the one or more narrowcast geographic cells. - View Dependent Claims (13, 14, 15, 16)
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Specification