Digital beamforming scheme for phased-array antennas
First Claim
1. A method for beamforming in a communication system, the method comprising:
- receiving a plurality of signals via a plurality of antennas, wherein the plurality of signals corresponds to at least one known training signal, and wherein each signal of the plurality of signals is received at a different time;
generating a respective one of a plurality of different antenna weight vectors to be applied to the plurality of antennas as each signal of the plurality of signals is received, wherein each of the plurality of antenna weight vectors is a respective base vector of a unitary matrix; and
generating a receiver antenna weight vector based on at least a mathematical combination of i) the received plurality of signals, ii) the plurality of different antenna weight vectors, and iii) the at least one known training signal.
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Abstract
A method for beamforming in a communication system includes receiving a plurality of signals via a plurality of antennas, where the plurality of signals corresponds to at least one known training signal, generating a respective one of a plurality of different antenna weight vectors to be applied to the plurality of antennas as each of the plurality of signals is received, where each of the plurality of antenna weight vectors is a respective base vector of a unitary matrix, and generating a receiver antenna weight vector based on at least the received plurality of signals, the plurality of different antenna weight vectors, and the at least one known training signal.
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Citations
15 Claims
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1. A method for beamforming in a communication system, the method comprising:
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receiving a plurality of signals via a plurality of antennas, wherein the plurality of signals corresponds to at least one known training signal, and wherein each signal of the plurality of signals is received at a different time; generating a respective one of a plurality of different antenna weight vectors to be applied to the plurality of antennas as each signal of the plurality of signals is received, wherein each of the plurality of antenna weight vectors is a respective base vector of a unitary matrix; and generating a receiver antenna weight vector based on at least a mathematical combination of i) the received plurality of signals, ii) the plurality of different antenna weight vectors, and iii) the at least one known training signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus comprising:
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a base vector generator to provide a plurality of different antenna weight vectors, wherein each of the plurality of different antenna weight vectors is a respective base vector of a unitary matrix; a reference signal storage to store at least one training signal; and a vector selection unit configured to receive a plurality of signals, each signal being received at a different time via a plurality of antennas using a different one of the plurality of different antenna weight vectors, and generate a receiver antenna weight vector based on at least a mathematical combination of i) the plurality of antenna weight vectors, ii) the received plurality of signals, and iii) the at least one training signal. - View Dependent Claims (13, 14, 15)
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Specification