Combining transponder bandwidths for source and forward error correction encoding efficiency
First Claim
1. A method for transmitting a plurality of M concurrent elementary data streams from a first entity to a plurality of receivers via N narrow band physical transponders, each of the N narrow band physical transponders communicatively coupled to only one of a plurality of antennas, comprising the steps of:
- generating, in the first entity, a single data stream from the M elementary data streams;
error correction encoding the single data stream comprising the M elementary data streams;
demultiplexing the single data stream into N transponder streams;
separately modulating and wirelessly transmitting each of the N transponder streams; and
receiving and wirelessly transmitting, in a second entity, the N transponder streams via a wide-band virtual transponder comprised of the N narrow band physical transponders, each of the N narrow band physical transponders directly transmitting an associated one of the N transponder streams to the plurality of receivers via the coupled antenna on a different portion of a signal spectrum than the other N narrow-band transponders;
wherein at least two of the different portions of the signal spectrum are non-contiguous in frequency.
5 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method for combining transponder bandwidths comprises a wide-band virtual transponder for transmitting a single data stream. The wide-band virtual transponder is comprised of a plurality of narrow-band physical transponders. A plurality of elementary streams are statistically multiplexed to create the single data stream, wherein the single data stream is forward error correction encoded and demultiplexed into a plurality of transponder streams for transmission by the plurality of physical transponders. The physical transponders each use a different portion of a signal spectrum, wherein the different portion may be guard bands or a combination of legacy bands and guard bands. Upon receipt, the transponder streams are multiplexed to recover the single data stream, wherein the recovered single data stream is forward error correction decoded and statistically demultiplexed to recover the plurality of elementary streams.
-
Citations
25 Claims
-
1. A method for transmitting a plurality of M concurrent elementary data streams from a first entity to a plurality of receivers via N narrow band physical transponders, each of the N narrow band physical transponders communicatively coupled to only one of a plurality of antennas, comprising the steps of:
-
generating, in the first entity, a single data stream from the M elementary data streams; error correction encoding the single data stream comprising the M elementary data streams; demultiplexing the single data stream into N transponder streams; separately modulating and wirelessly transmitting each of the N transponder streams; and receiving and wirelessly transmitting, in a second entity, the N transponder streams via a wide-band virtual transponder comprised of the N narrow band physical transponders, each of the N narrow band physical transponders directly transmitting an associated one of the N transponder streams to the plurality of receivers via the coupled antenna on a different portion of a signal spectrum than the other N narrow-band transponders; wherein at least two of the different portions of the signal spectrum are non-contiguous in frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. An apparatus for transmitting a plurality of M concurrent elementary data streams from a first entity to a plurality of receivers via N narrow band physical transponders, each of the N narrow band physical transponders communicatively coupled to only one of a plurality of antennas, comprising:
-
a multiplexer, for generating, in a first entity, a single data stream from the M elementary streams; an encoder for encoding the single data stream comprising the M elementary data streams; a demultiplexer, for demultiplexing the single data stream into N transponder streams; a transmitter, for separately modulating and wirelessly transmitting each of the N transponder streams; and a wide-band virtual transponder, disposed in a second entity, for receiving and wirelessly transmitting the N transponder streams via a wide-band virtual transponder comprised of N narrow band physical transponders, each of the N narrow band physical transponders for directly transmitting an associated one of the N transponder streams to the plurality of receivers via the coupled antenna on a different portion of a signal spectrum than the other N narrow-band transponders; wherein at least two of the different portions of the signal spectrum are non-contiguous in frequency. - View Dependent Claims (10, 11, 12, 13, 14, 15)
-
-
16. A method for receiving M concurrent elementary data streams, comprising:
-
separately demodulating N transponder streams received from a wide band virtual transponder, wherein; the N transponder streams together comprise the M elementary data streams together error correction encoded as a single data stream that is demultiplexed into the N transponder streams and each of the N transponder streams are directly and wirelessly received from an associated one of N narrow-band transponders via a physical antenna communicatively coupled to only one of the N narrow-band transponders; and each of the N narrow band transponders transmits the associated transponder stream on a different portion of a signal spectrum than the other N narrow-band transponders; time-aligning the separately demodulated N transponder streams; multiplexing the separately demodulated N transponder streams to recover the error correction encoded single data stream comprising the M elementary data streams; error correction decoding the single data stream comprising the M elementary data streams to recover a decoded single data stream; and demultiplexing the decoded single data stream to recover the M elementary data streams; wherein the signal spectrum comprises a plurality of different portions, and at least two of the different portions of the signal spectrum are non-contiguous in frequency. - View Dependent Claims (17, 18, 19, 20)
-
-
21. An apparatus for receiving a plurality of M concurrent elementary data streams, comprising:
-
a tuner for separately demodulating N transponder streams received from a wide band virtual transponder, wherein; the N transponder streams together comprise the M elementary data streams together error correction encoded as a single data stream that is demultiplexed into the N transponder streams and each of the N transponder streams are wirelessly received from an associated one of N narrow-band physical transponders via a physical antenna communicatively coupled to only one of the N narrow-band transponders; and each of the N narrow band transponders transmits the associated transponder stream on a different portion of a signal spectrum than the other N narrow-band transponders; means for time-aligning the separately demodulated N transponder streams; a multiplexer for multiplexing the separately demodulated N transponder streams to recover the error correction encoded single data stream comprising the M elementary data streams; an error correction decoder for decoding the recovered error correction encoded single data stream comprising the M concurrent data streams to recover the single data stream; and a demultiplexer for demultiplexing the single data stream to recover the M elementary data streams; wherein the signal spectrum comprises a plurality of different portions, and at least two of the different portions of the signal spectrum are non-contiguous in frequency. - View Dependent Claims (22, 23, 24, 25)
-
Specification