Backhaul radio with horizontally or vertically arranged receive antenna arrays
First Claim
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1. A backhaul radio comprising:
- a horizontally arranged backhaul radio antenna array comprising;
a plurality of directional receive antenna arrays, wherein each of said plurality of directional receive antenna arrays comprises a plurality of receive antenna sub-arrays, and wherein each of said plurality of receive antenna sub-arrays comprises a plurality of receive antenna elements; and
a directional transmit antenna;
one or more demodulator cores, wherein each demodulator core is capable of demodulating one or more of a plurality of 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; and
a frequency selective receive path channel multiplexer, interposed between the one or more demodulator cores and at least two of the plurality of receive RF chains, wherein the frequency selective receive path channel multiplexer is capable of generating the plurality of receive symbol streams from at least two of the plurality of receive chain output signals provided by said at least two of the plurality of receive RF chains;
wherein each of the plurality of receive antenna sub-arrays is coupled or couplable to at least one receive RF chain; and
wherein all of the plurality of directional receive antenna arrays are horizontally offset relative to the directional transmit antenna.
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Abstract
A intelligent backhaul radio have an advanced antenna system for use in PTP or PMP topologies. The antenna system provides a significant diversity benefit. Antenna configurations are disclosed that provide for increased transmitter to receiver isolation, adaptive polarization and MIMO transmission equalization. Adaptive optimization of transmission parameters based upon side information provided in the form of metric feedback from a far end receiver utilizing the antenna system is also disclosed.
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Citations
69 Claims
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1. A backhaul radio comprising:
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a horizontally arranged backhaul radio antenna array comprising; a plurality of directional receive antenna arrays, wherein each of said plurality of directional receive antenna arrays comprises a plurality of receive antenna sub-arrays, and wherein each of said plurality of receive antenna sub-arrays comprises a plurality of receive antenna elements; and a directional transmit antenna; one or more demodulator cores, wherein each demodulator core is capable of demodulating one or more of a plurality of 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; and a frequency selective receive path channel multiplexer, interposed between the one or more demodulator cores and at least two of the plurality of receive RF chains, wherein the frequency selective receive path channel multiplexer is capable of generating the plurality of receive symbol streams from at least two of the plurality of receive chain output signals provided by said at least two of the plurality of receive RF chains; wherein each of the plurality of receive antenna sub-arrays is coupled or couplable to at least one receive RF chain; and wherein all of the plurality of directional receive antenna arrays are horizontally offset relative to the directional transmit antenna. - 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, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A backhaul radio comprising:
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a vertically arranged backhaul radio antenna array comprising; a plurality of directional receive antenna arrays, wherein each of said plurality of directional receive antenna arrays comprises a plurality of receive antenna sub-arrays, and wherein each of said plurality of receive antenna sub-arrays comprises a plurality of receive antenna elements; and a directional transmit antenna; one or more demodulator cores, wherein each demodulator core is capable of demodulating one or more of a plurality of 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; and a frequency selective receive path channel multiplexer, interposed between the one or more demodulator cores and at least two of the plurality of receive RF chains, wherein the frequency selective receive path channel multiplexer is capable of generating the plurality of receive symbol streams from at least two of the plurality of receive chain output signals provided by said at least two of the plurality of receive RF chains; wherein each of the plurality of receive antenna sub-arrays is coupled or couplable to at least one receive RF chain; wherein each of the receive antenna sub-arrays has an antenna pattern beamwidth in elevation that is narrower than an antenna pattern beamwidth in azimuth for any of the receive antenna sub-arrays comprised within the plurality of directional receive antenna arrays; and wherein all of the plurality of directional receive antenna arrays are vertically offset relative to the directional transmit antenna. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
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Specification