BACKHAUL RADIO WITH EXTREME INTERFERENCE PROTECTION
First Claim
Patent Images
1. A backhaul radio comprising:
- 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 wherein each said receive RF signal is characterized by at least a channel center frequency and a channel bandwidth amongst either of a multitude of possible channel center frequencies or a multitude of possible channel bandwidths, respectively;
a plurality of directive gain antenna elements; and
one or more selectable RF connections for selectively coupling certain of the plurality of directive gain antenna elements to certain of the plurality of receive RF chains according to a set of selective coupling settings;
wherein the backhaul radio is capable of determining a measure of interference associated with each of a plurality of combinations of channel center frequency, channel bandwidth, and set of selective coupling settings;
wherein the backhaul radio is capable of determining or estimating one or more performance metrics associated with each combination of channel center frequency, channel bandwidth, and set of selective coupling settings, said determining or estimating of the one or more performance metrics being based at least upon the measure of interference; and
wherein the backhaul radio is capable of changing from a first combination of channel center frequency, channel bandwidth, and set of selective coupling settings to a second combination of channel center frequency, channel bandwidth, and set of selective coupling settings, said changing being based at least upon an opportunity to improve at least one of the one or more performance metrics.
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Abstract
A backhaul radio is disclosed that operates in multipath propagation environments such as obstructed LOS conditions with uncoordinated interference sources in the same operating band. Such a backhaul radio may use a combination of interference mitigation procedures across multiple of the frequency, time, spatial and cancellation domains. Such backhaul radios may communicate with each other to coordinate radio resource allocations such that accurate interference assessment and channel propagation characteristics assessment may be determined during normal operation.
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Citations
20 Claims
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1. A backhaul radio comprising:
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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 wherein each said receive RF signal is characterized by at least a channel center frequency and a channel bandwidth amongst either of a multitude of possible channel center frequencies or a multitude of possible channel bandwidths, respectively; a plurality of directive gain antenna elements; and one or more selectable RF connections for selectively coupling certain of the plurality of directive gain antenna elements to certain of the plurality of receive RF chains according to a set of selective coupling settings; wherein the backhaul radio is capable of determining a measure of interference associated with each of a plurality of combinations of channel center frequency, channel bandwidth, and set of selective coupling settings; wherein the backhaul radio is capable of determining or estimating one or more performance metrics associated with each combination of channel center frequency, channel bandwidth, and set of selective coupling settings, said determining or estimating of the one or more performance metrics being based at least upon the measure of interference; and wherein the backhaul radio is capable of changing from a first combination of channel center frequency, channel bandwidth, and set of selective coupling settings to a second combination of channel center frequency, channel bandwidth, and set of selective coupling settings, said changing being based at least upon an opportunity to improve at least one of the one or more performance metrics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification