Self organizing backhaul radio
First Claim
1. A self-organizing backhaul radio comprising:
- one or more demodulator cores, wherein each demodulator core is capable of demodulating one or more primary receive symbol streams to produce one or more receive data interface streams;
a plurality of receive radio frequency (RF) chains, wherein each receive RF chain is capable of converting from one of a plurality of receive RF signals to a respective one of a plurality of receive chain output signals;
an antenna array comprising a plurality of directive gain antenna elements, wherein each directive gain antenna element is couplable to at least one receive RF chain;
a frequency selective receive path channel multiplexer to produce one or more composite receive symbol streams from the plurality of receive chain output signals, wherein each respective one of the one or more composite receive symbol streams comprises a linear combination of a respective primary receive symbol stream and a respective signature control channel symbol stream, and wherein each respective signature control channel symbol stream is a spread spectrum modulated signal that carries a respective signature control channel information; and
a signature link processor, interposed between the one or more demodulator cores and the frequency selective receive path channel multiplexer, to produce the one or more primary receive symbol streams provided to the one or more demodulator cores from the one or more composite receive symbol streams;
wherein the signature link processor comprises one or more respective signature control channel stream cancellers each for;
receiving the respective one of the one or more composite receive symbol streams;
receiving the respective signature control channel information as pre-communicated respective signature control channel information, wherein the pre-communicated respective signature control channel information is derived from information communicated to the self-organizing backhaul radio prior to the receiving of the respective signature control channel symbol stream that carries the respective signature control channel information;
cancelling the respective signature control channel symbol stream from the respective one of the one or more composite receive symbol streams to produce the respective primary receive symbol stream based upon the pre-communicated respective signature control channel information.
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Accused Products
Abstract
A self-organizing backhaul radio (SOBR) and related arrangements are disclosed. A “primary” link between an first SOBR enabled radio and a second SOBR radio includes a secondary transmission link, referred to as a signature control channel (SCC), as a spread spectrum modulated signal embedded within and transmitted simultaneously with the primary link. The SCC transmissions from the first SOBR radio may be utilized by other SOBR enabled radios to determine an interference level to or from the first SOBR radio'"'"'s primary link. The SCC transmission may be utilized to allow transmit beam forming between SOBR-enabled radios without damaging other friendly SOBR radios within the propagation distance of the transmitted signals based upon the detection of the SCC transmissions.
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Citations
30 Claims
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1. A self-organizing backhaul radio comprising:
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one or more demodulator cores, wherein each demodulator core is capable of demodulating one or more primary receive symbol streams to produce one or more receive data interface streams; a plurality of receive radio frequency (RF) chains, wherein each receive RF chain is capable of converting from one of a plurality of receive RF signals to a respective one of a plurality of receive chain output signals; an antenna array comprising a plurality of directive gain antenna elements, wherein each directive gain antenna element is couplable to at least one receive RF chain; a frequency selective receive path channel multiplexer to produce one or more composite receive symbol streams from the plurality of receive chain output signals, wherein each respective one of the one or more composite receive symbol streams comprises a linear combination of a respective primary receive symbol stream and a respective signature control channel symbol stream, and wherein each respective signature control channel symbol stream is a spread spectrum modulated signal that carries a respective signature control channel information; and a signature link processor, interposed between the one or more demodulator cores and the frequency selective receive path channel multiplexer, to produce the one or more primary receive symbol streams provided to the one or more demodulator cores from the one or more composite receive symbol streams; wherein the signature link processor comprises one or more respective signature control channel stream cancellers each for; receiving the respective one of the one or more composite receive symbol streams; receiving the respective signature control channel information as pre-communicated respective signature control channel information, wherein the pre-communicated respective signature control channel information is derived from information communicated to the self-organizing backhaul radio prior to the receiving of the respective signature control channel symbol stream that carries the respective signature control channel information; cancelling the respective signature control channel symbol stream from the respective one of the one or more composite receive symbol streams to produce the respective primary receive symbol stream based upon the pre-communicated respective signature control channel information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification