Dual-mode transmitter
First Claim
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1. A method in a transmitter for transmission of signals based on at least two different transmission modes, the method comprising:
- inputting a signal to be transmitted in accordance with a selected transmission mode in a signal path comprising amplifier means;
based on the selected transmission mode, shaping the waveform of the signal that is to be output from the signal path by combining at least two waveforms; and
switching the mode of at least one component on the signal path between said at least two transmission modes.
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Abstract
A method and circuitry for a transmitter is disclosed. The transmitter is adapted for transmission of signals based on at least two different transmission modes. In the method a signal to be transmitted in accordance with a selected transmission mode is input in a single path (1) comprising amplifier means (10). Based on the selected transmission mode, the waveform of the signal is shaped by combining at least two waveforms. The mode of at least one component on the signal path is switched between said at least two transmission modes by means of a switching circuit (50).
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Citations
32 Claims
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1. A method in a transmitter for transmission of signals based on at least two different transmission modes, the method comprising:
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inputting a signal to be transmitted in accordance with a selected transmission mode in a signal path comprising amplifier means;
based on the selected transmission mode, shaping the waveform of the signal that is to be output from the signal path by combining at least two waveforms; and
switching the mode of at least one component on the signal path between said at least two transmission modes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. Circuitry for a multimode transmitter, comprising:
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amplifier means for amplifying signals;
means for shaping the output waveform of the circuitry, said shaping being adapted to be accomplished based on a selected transmission mode by combining at least two waveforms; and
switching circuit for switching the mode of operation of he circuitry between at least two transmission modes. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification