Method and system for connectionless communication in a cell relay satellite network
First Claim
1. A method for communicating a packet in a communications network comprising a cell relay satellite, said method comprising the steps of:
- dividing the packet into segments at a source in the communications network;
generating a cell for each of the segments, wherein each cell includes a first portion and a second portion with a prefix, a downlink beam locator, and a source identifier included in the first portion;
inserting each of the segments into the second portion of each of the generated cells, respectively; and
transmitting the generated cells to the cell relay satellite.
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Accused Products
Abstract
A method and system for communicating a packet over a cell relay satellite network, without establishing a connection in the cell relay satellite network, comprises the steps of segmenting the packet into a number of segments at a source node in the communications network, generating for each of the segments a fixed size cell that includes a cell header and a payload with a prefix, a downlink beam locator, and a source node identifier included in the cell header, and inserting each segment into the payload of each generated cell, respectively, and transmitting the cells to the cell relay satellite. A cell relay satellite receives each transmitted cell from the source node, and broadcasts each cell on a downlink beam corresponding to the downlink beam locator in each cell header. A destination node receives each broadcasted cell on the downlink beam, and re-assembles the packet from the received cells. Specifically, the destination node re-assembles the packet by identifying the cells corresponding to the packet, and appending the segments inside the cell payloads together, in the order of receipt of the identified cells. Finally, the destination node may identify a destination address in the packet, and may route the packet to the identified destination address, which may reside in another communications network.
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Citations
13 Claims
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1. A method for communicating a packet in a communications network comprising a cell relay satellite, said method comprising the steps of:
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dividing the packet into segments at a source in the communications network;
generating a cell for each of the segments, wherein each cell includes a first portion and a second portion with a prefix, a downlink beam locator, and a source identifier included in the first portion;
inserting each of the segments into the second portion of each of the generated cells, respectively; and
transmitting the generated cells to the cell relay satellite. - View Dependent Claims (2, 3, 4)
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5. A method for communicating a packet in a first communications network comprising a cell relay satellite, said method comprising the steps of:
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receiving, at a first destination in the first communications network, a plurality of cells each comprising;
a first portion including a prefix, a downlink beam locator, and a source identifier; and
a second portion including a segment of a packet; and
re-assembling the packet from the segments in the second portion of the received cells. - View Dependent Claims (6, 7)
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8. A satellite earth station for communicating a packet without establishing a connection in a communications network comprising a cell relay satellite, said system comprising:
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a memory comprising a packet converter program for segmenting the packet into a number of segments, and for generating a cell for each of the segments, wherein each cell includes a first portion and a second portion, and for including a prefix, a downlink beam locator, and a node identifier in the first portion of each generated cell, and for inserting each of the segments into the second portion of the generated cells, respectively;
a processor for running the packet converter program; and
a transmitter for transmitting the generated cells to the cell relay satellite.
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9. A satellite earth station for communicating a packet without establishing a connection in a communications network comprising a cell relay satellite, said system comprising:
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a receiver for receiving a plurality of cells each comprising;
a first portion including a prefix, a downlink beam locator, and a node identifier; and
a second portion including a segment of a packet;
a memory comprising a packet re-assembler program for re-assembling the packet from the segments in the second portion of the received cells; and
a processor for running the packet re-assembler program.
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10. A computer-readable medium capable of configuring a satellite earth station to perform a method for communicating a packet without establishing a connection in a communications network comprising a cell relay satellite, said method comprising the steps of:
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dividing the packet into segments at a source in the communications network;
generating a cell for each of the segments, wherein each cell includes a first portion and a second portion with a prefix, a downlink beam locator, and a source identifier included in the first portion;
inserting each of the segments into the second portion of each of the generated cells, respectively; and
transmitting the generated cells to the cell relay satellite.
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11. A computer-readable medium capable of configuring a satellite earth station to perform a method for communicating a packet without establishing a connection in a communications network comprising a cell relay satellite, said method comprising the steps of:
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receiving, at a first destination in the first communications network, a plurality of cells each comprising;
a first portion including a prefix, a downlink beam locator, and a source identifier; and
a second portion including a segment of a packet; and
re-assembling the packet from the segments in the second portion of the received cells. - View Dependent Claims (12)
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13. A method for communicating a packet in a communications network comprising a cell relay satellite, said method comprising the steps of:
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dividing the packet into segments at a source in the communications network;
generating a cell for each of the segments, wherein each cell includes a first portion and a second portion with a prefix, a downlink beam locator, and a source identifier included in the first portion;
inserting each of the segments into the second portion of each of the generated cells, respectively;
transmitting the generated cells to the cell relay satellite;
receiving the transmitted cells at a destination in the communications network; and
re-assembling the packet from the segments in the second portion of the received cells.
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Specification