Amplifying diversity signals using power amplifiers
First Claim
Patent Images
1. A method for amplifying diversity transmit signals, comprising:
- receiving a transmit signal at a vector modulator, the vector modulator operable to process the transmit signal to yield a plurality of diversity transmit signals by;
splitting the transmit signal to yield at least two transmit signals;
adjusting a phase of at least one of the at least two transmit signals;
adjusting the amplitude of at least one of the at least two transmit signals; and
generating the plurality of diversity transmit signals according to the adjusted transmit signals;
amplifying each of the plurality of diversity transmit signals according to a gain using at least one power amplifier; and
transmitting the plurality of amplified diversity transmit signals at a plurality of antennas.
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Abstract
A method for amplifying diversity transmit signals includes receiving a transmit signal at a vector modulator, where the vector modulator processes the transmit signal to yield diversity transmit signals, amplifying each of the diversity transmit signals according to a gain using at least one power amplifier, and transmitting the amplified diversity transmit signals at a plurality of antennas.
68 Citations
30 Claims
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1. A method for amplifying diversity transmit signals, comprising:
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receiving a transmit signal at a vector modulator, the vector modulator operable to process the transmit signal to yield a plurality of diversity transmit signals by; splitting the transmit signal to yield at least two transmit signals; adjusting a phase of at least one of the at least two transmit signals; adjusting the amplitude of at least one of the at least two transmit signals; and generating the plurality of diversity transmit signals according to the adjusted transmit signals; amplifying each of the plurality of diversity transmit signals according to a gain using at least one power amplifier; and transmitting the plurality of amplified diversity transmit signals at a plurality of antennas. - View Dependent Claims (2, 3)
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4. A method for amplifying diversity transmit signals, comprising:
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receiving two or more transmit signals and a control signal, the control signal comprising a gain path selection; selecting for each transmit signal at least one gain path from a plurality of gain paths according to the gain path selection of the control signal, each gain path of the plurality of gain paths comprising one or more amplifiers operable to yield at least one gain of a plurality of gains, a first gain path of the plurality of gain paths comprising one or more first amplifiers operable to yield a first gain of the plurality of gains, a second gain path of the plurality of gain paths comprising one or more second amplifiers operable to yield a second gain of the plurality of gains, the second gain different from the first gain; amplifying the two or more transmit signals according to the at least one gain of the plurality of gains; and transmitting the two or more amplified transmit signals using a plurality of antennas. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for amplifying diversity transmit signals, comprising:
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receiving two or more transmit signals and a control signal, the control signal comprising a gain path selection; selecting for each transmit signal at least one gain path from a plurality of gain paths according to the gain path selection of the control signal, each gain path of the plurality of gain paths associated with at least one gain of a plurality of gains, wherein; each gain path comprises one or more amplification stages of a plurality of amplification stages, the one or more amplification stages operable to yield the associated gain; the plurality of gain paths comprises a first gain path and a second gain path; the plurality of amplification stages comprises a first plurality of amplification stages and a second plurality of amplification stages; the first gain path is associated with the first plurality of amplification stages and the second gain path is associated with the second plurality of amplification stages; and the first plurality of amplification stages is substantially different from the second plurality of amplification stages; amplifying the two or more transmit signals according to the at least one gain of the plurality of gains; and transmitting the two or more amplified transmit signals using a plurality of antennas.
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14. A system for amplifying diversity transmit signals, comprising:
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a vector modulator operable to; receive a transmit signal; and process the transmit signal to yield a plurality of diversity transmit signals by; splitting the transmit signal to yield at least two transmit signals; adjusting a phase of at least one of the at least two transmit signals; adjusting the amplitude of at least one of the at least two transmit signals; and generating the plurality of diversity transmit signals according to the adjusted transmit signals; at least one power amplifier coupled to the vector modulator and operable to amplify each of the plurality of diversity transmit signals according to a gain; and a plurality of antennas for transmitting the plurality of amplified diversity transmit signals. - View Dependent Claims (15, 16, 17)
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18. A system for amplifying diversity transmit signals, comprising:
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a power amplifier module operable to; receive two or more transmit signals and a control signal, the control signal comprising a gain path selection; select for each transmit signal at least one gain path from a plurality of gain paths according to the gain path selection of the control signal, each gain path of the plurality of gain paths comprising one or more amplifiers operable to yield at least one gain of a plurality of gains, a first gain path of the plurality of gain paths comprising one or more first amplifiers operable to yield a first gain of the plurality of gains, a second gain path of the plurality of gain paths comprising one or more second amplifiers operable to yield a second gain of the plurality of gains, the second gain different from the first gain; and amplify the two or more transmit signals according to the at least one gain of the plurality of gains; and a plurality of antennas for transmitting the two or more amplified transmit signals. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A system for amplifying diversity transmit signals, comprising:
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a power amplifier module operable to; receive two or more transmit signals and a control signal, the control signal comprising a gain path selection; select for each transmit signal at least one gain path from a plurality of gain paths according to the gain path selection of the control signal, each gain path of the plurality of gain paths associated with at least one gain of a plurality of gains, wherein; each gain path comprises one or more amplification stages of a plurality of amplification stages, the one or more amplification stages operable to yield the associated gain; the plurality of gain paths comprises a first gain path and a second gain path; the plurality of amplification stages comprises a first plurality of amplification stages and a second plurality of amplification stages; the first gain path is associated with the first plurality of amplification stages and the second gain path is associated with the second plurality of amplification stages; and the first plurality of amplification stages is substantially different from the second plurality of amplification stages; and amplify the two or more transmit signals according to the at least one gain of the plurality of gains; and a plurality of antennas for transmitting the two or more amplified transmit signals.
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28. A system for amplifying diversity transmit signals, comprising:
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means for receiving a transmit signal at a vector modulator, the vector modulator operable to process the transmit signal to yield a plurality of diversity transmit signals by; splitting the transmit signal to yield at least two transmit signals; adjusting a phase of at least one of the at least two transmit signals; adjusting the amplitude of at least one of the at least two transmit signals; and generating the plurality of diversity transmit signals according to the adjusted transmit signals; means for amplifying each of the plurality of diversity transmit signals according to a gain using at least one power amplifier; and means for transmitting the plurality of amplified diversity transmit signals at a plurality of antennas.
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29. A system for amplifying diversity transmit signals, comprising:
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means for receiving two or more transmit signals and a control signal, the control signal comprising a gain path selection; means for selecting at least one gain path from a plurality of gain paths according to the gain path selection of the control signal, each gain path of the plurality of gain paths comprising one or more amplifiers operable to yield at least one gain of a plurality of gains, a first gain path of the plurality of gain paths comprising one or more first amplifiers operable to yield a first gain of the plurality of gains, a second gain path of the plurality of gain paths comprising one or more second amplifiers operable to yield a second gain of the plurality of gains, the second gain different from the first gain; means for amplifying the two or more transmit signals according to the at least one gain of the plurality of gains; and means for transmitting the two or more amplified transmit signals using a plurality of antennas.
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30. A system for amplifying diversity transmit signals, comprising:
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a power amplifier module operable to; receive two or more transmit signals and a control signal, the control signal comprising a gain path selection and one of a received internal control signal or an external control signal; select for each transmit signal at least one gain path from a plurality of gain paths according to the gain path selection of the control signal, each gain path of the plurality of gain paths associated with at least one gain of a plurality of gains and comprising one or more power amplifiers, the one or more power amplifiers collectively yielding the at least one gain of the plurality of gains; and amplify the two or more transmit signals according to the at least one gain of the plurality of gains, the at least one gain comprising a high gain and a low gain; a plurality of antennas for transmitting the two or more amplified transmit signals; and one or more loads for passing through each of the two or more amplified diversity transmit signal, each load having a load impedance matching an antenna impedance corresponding to an antenna of the plurality of antennas.
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Specification