Space shifting over return satellite communication channels
First Claim
1. A method for providing content from a first node to a second node using a satellite communications system, the method comprising:
- receiving side information at a provider-side gateway in the satellite communications system, the side information being transmitted from a subscriber terminal to the gateway via a first communication path that is a return-channel path that includes a satellite link, the subscriber terminal and the first node being on a first side of the satellite link and the gateway being on a second side of the satellite link;
identifying at the gateway according to the side information that first content is being transmitted from the first node to the second node via the gateway over the satellite link;
determining at the gateway that second content is available from a source other than the first node that is in communication with the second node via a second communication path that does not include the satellite link;
generating output content using the second content and the side information so that the output content is substantially the same as the first content; and
providing the output content to the second node via the second communication path.
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Accused Products
Abstract
A method for providing content from a first node to a second node using a satellite communications system includes receiving side information at a gateway in the satellite communications system. The side information may be transmitted from a subscriber terminal to the gateway via a first communication path that includes a satellite link. The method also includes determining at the gateway that the side information is associated with first content available at the first node, and determining at the gateway that second content is available from a source other than the first node. The method also includes generating output content using the second content and the side information. The output content may be substantially the same as the first content. The method also includes providing the output content to the second node via a second communication path that does not include the satellite link.
56 Citations
21 Claims
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1. A method for providing content from a first node to a second node using a satellite communications system, the method comprising:
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receiving side information at a provider-side gateway in the satellite communications system, the side information being transmitted from a subscriber terminal to the gateway via a first communication path that is a return-channel path that includes a satellite link, the subscriber terminal and the first node being on a first side of the satellite link and the gateway being on a second side of the satellite link; identifying at the gateway according to the side information that first content is being transmitted from the first node to the second node via the gateway over the satellite link; determining at the gateway that second content is available from a source other than the first node that is in communication with the second node via a second communication path that does not include the satellite link; generating output content using the second content and the side information so that the output content is substantially the same as the first content; and providing the output content to the second node via the second communication path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A provider-side gateway for providing content from a first node to a second node using a satellite communications system, comprising:
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a receiving module configured to receive side information transmitted from a subscriber terminal via a first communication path that is a return-channel path that includes a satellite link, the subscriber terminal and the first node being on a first side of the satellite link and the gateway being on a second side of the satellite link; an identifying module configured to identify according to the side information that first content is being transmitted from the first node to the second node via the gateway over the satellite link; a determining module configured to determine that second content is available from a source other than the first node that is in communication with the second node via a second communication path that does not include the satellite link; a generating module configured to generate output content using the second content and the side information so that the output content is substantially the same as the first content; and a providing module configured to provide the output content to the second node via the second communication path. - View Dependent Claims (16, 17, 18)
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19. A satellite communications system for transmitting content from a first node to a second node, comprising:
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a source encoder configured to receive first content from the first node and generate side information associated with the first content; a subscriber terminal configured to transmit the side information via a return-channel satellite link; and a provider-side gateway configured to receive the side information via the satellite link and configured to; determine, according to the side information, that the first content is being transmitted over the satellite link to the second node; determine that second content is available from a source other than the first node that is in communication with the second node via a terrestrial communication path that does not include the satellite link; generate output content using the second content and the side information in such a way that the output content is substantially the same as the first content; and provide the output content to the second node via the terrestrial communication path. - View Dependent Claims (20, 21)
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Specification