Wireless network with intensive frequency reuse
First Claim
1. A receiver for use in a wireless network, comprising:
- a first antenna, which is adapted to be directed toward a first transmitter positioned in a first location and transmitting a first signal carrying a first stream of digital information;
a second antenna, which is adapted to be directed toward a second transmitter positioned in a second location, separated from the first location, and transmitting a second signal carrying a second stream of digital information; and
processing circuitry, which is coupled to receive first and second receiver inputs from the first and second antennas, respectively, due to reception of the first and second signals by the antennas, and which is adapted to combine the first and second receiver inputs so as to extract at least the first stream of digital information from the receiver inputs while suppressing at least a first interference due to reception of the second signal by the first antenna.
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Accused Products
Abstract
A node in a wireless network includes at least first and second directional antennas, which are directed toward other nodes in the network. Signal generation circuitry at the node receives first and second streams of digital information to be conveyed to the other nodes, and combines the streams so as to generate outgoing signals for transmission by the first and second directional antennas, while suppressing interference between the transmitted signals. Additionally or alternatively, processing circuitry at the node receives first and second receiver inputs from the antennas, due to reception of incoming signals by the antennas from the other nodes, and combines the inputs so as to extract data streams therefrom while suppressing interference between the received signals.
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Citations
62 Claims
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1. A receiver for use in a wireless network, comprising:
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a first antenna, which is adapted to be directed toward a first transmitter positioned in a first location and transmitting a first signal carrying a first stream of digital information;
a second antenna, which is adapted to be directed toward a second transmitter positioned in a second location, separated from the first location, and transmitting a second signal carrying a second stream of digital information; and
processing circuitry, which is coupled to receive first and second receiver inputs from the first and second antennas, respectively, due to reception of the first and second signals by the antennas, and which is adapted to combine the first and second receiver inputs so as to extract at least the first stream of digital information from the receiver inputs while suppressing at least a first interference due to reception of the second signal by the first antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A transmitter for use in a wireless network, comprising:
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a first antenna, which is adapted to be directed toward a first receiver positioned in a first location;
a second antenna, which is adapted to be directed toward a second receiver positioned in a second location, separated from the first location; and
signal generation circuitry, which is coupled to receive first and second streams of digital information to be conveyed to the first and second receivers, respectively, and which is adapted to combine the first and second streams of digital information so as to generate first and second signals for transmission respectively by the first and second antennas, such that at least a first interference due to the transmission of the second signal is suppressed at the first receiver. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. Communication apparatus for use in a wireless network, comprising:
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a first directional antenna, which is adapted to be directed toward a first remote antenna of a first node in a first location in the network;
a second directional antenna, which is adapted to be directed toward a second remote antenna of a second node in a second location in the network, separated from the first location;
signal generation circuitry, which is coupled to receive first and second streams of digital information to be conveyed to the first and second nodes, respectively, and which is adapted to combine the first and second streams of digital information so as to generate first and second outgoing signals for transmission respectively by the first and second directional antennas, such that at least a first interference due to the transmission of the second outgoing signal is suppressed at the first remote antenna; and
processing circuitry, which is coupled to receive first and second receiver inputs from the first and second directional antennas, respectively, due to reception of first and second incoming signals by the antennas from the first and second nodes, respectively, and which is adapted to combine the first and second receiver inputs so as to extract a data stream from the receiver inputs while suppressing at least a second interference due to reception of the second incoming signal by the first directional antenna.
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21. A wireless communication network, comprising a plurality of nodes, which comprise at least first and second nodes,
wherein each of the first and second nodes comprises a respective first antenna, such that the first antenna of the first node is directed to transmit a first signal toward the second node, and the first antenna of the second node is directed toward the first node so as to receive the first signal, and wherein at least the first node comprises a respective second antenna, which is directed toward another of the nodes in the network, and wherein the first node comprises signal generation circuitry, which is coupled to receive a first stream of digital information to be conveyed to the second node and a second stream of digital information to be conveyed to another of the nodes, and wherein the signal generation circuitry is adapted to combine the first and second streams of digital information so as to generate the first signal and to generate a second signal for transmission by the second antenna of the first node, such that at least a first interference due to the transmission of the second signal is suppressed at the second node.
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31. A wireless communication network, comprising a plurality of nodes, which comprise at least first and second nodes,
wherein each of the first and second nodes comprises a respective first antenna, such that the first antenna of the first node is directed to transmit a first signal carrying a first stream of digital information toward the second node, and the first antenna of the second node is directed toward the first node so as to receive the first signal, and wherein at least the second node comprises a second antenna, which is directed toward another of the nodes in the network, and wherein the second node comprises processing circuitry, which is coupled to receive first and second receiver inputs from the first and second antennas of the second node, respectively, due to reception by the antennas of the second node of the first signal and of at least a second signal transmitted from another of the nodes in the network, and wherein the processing circuitry is adapted to combine the first and second receiver inputs so as to extract at least the first stream of digital information from the receiver inputs while suppressing at least a first interference due to reception of the second signal by the first antenna of the second node.
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40. In a wireless network, in which a receiving node has a first antenna directed toward a first transmitter positioned in a first location and transmitting a first signal carrying a first stream of digital information, and a second antenna directed toward a second transmitter positioned in a second location, separated from the first location, and transmitting a second signal carrying a second stream of digital information, a method for processing the first and second signals at the receiving node, comprising:
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receiving first and second receiver inputs from the first and second antennas, respectively, due to reception of the first and second signals by the antennas; and
combining the first and second receiver inputs so as to extract at least the first stream of digital information from the receiver inputs while suppressing at least a first interference due to reception of the second signal by the first antenna. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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52. In a wireless network, in which a transmitting node has a first antenna directed toward a first receiver positioned in a first location, and a second antenna directed toward a second receiver positioned in a second location, separated from the first location, a method for generating signals for transmission by the transmitting node, comprising:
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receiving first and second streams of digital information to be conveyed to the first and second receivers, respectively; and
combining the first and second streams of digital information so as to generate first and second signals for transmission respectively by the first and second antennas, such that at least a first interference due to the transmission of the second signal is suppressed at the first receiver. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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Specification