RF feedback receiver arrangement, RF transmit arrangement and RF transceiver arrangement
First Claim
1. An RF feedback receiver arrangement for detecting a transmit signal property of a transmit signal of an RF transmit arrangement, the RF feedback receiver arrangement comprising a normal operating phase and a calibration operating phase, comprising:
- a reference signal provider configured to provide, in the normal operating phase, a first reference signal comprising a first reference signal frequency and provide, in the calibration operating phase, a second reference signal comprising a second reference signal frequency, which differs from the first reference signal frequency; and
a signal property detector configured to detect, in the normal operating phase, the transmit signal property based on a combination of the first reference signal with the transmit signal or with a signal derived from the transmit signal; and
the signal property detector further configured to acquire, in the calibration operating phase, a calibration signal based on a combination of the second reference signal with the transmit signal or with the signal derived from the transmit signal, wherein the calibration signal describes a disturbing portion introduced into the detected transmit signal property by the RF feedback receiver arrangement itself.
4 Assignments
0 Petitions
Accused Products
Abstract
An RF feedback receiver arrangement includes a reference signal provider configured to provide, in a normal operating phase, a first reference signal having a first reference signal frequency, and provide, in a calibration operating phase, a second reference signal having a second reference signal frequency different from the first reference signal frequency. In addition, the RF feedback receiver arrangement includes a signal property detector configured to detect a transmit signal property of the transmit signal in the normal operating phase based on combining the first reference signal with a transmit signal or with a signal derived from the transmit signal, and to obtain, in the calibration operating phase, a calibration signal based on combining the second reference signal with the transmit signal or the signal derived from the transmit signal, which describes a disturbing portion introduced into the detected transmit signal property by the RF feedback receiver arrangement itself.
14 Citations
27 Claims
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1. An RF feedback receiver arrangement for detecting a transmit signal property of a transmit signal of an RF transmit arrangement, the RF feedback receiver arrangement comprising a normal operating phase and a calibration operating phase, comprising:
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a reference signal provider configured to provide, in the normal operating phase, a first reference signal comprising a first reference signal frequency and provide, in the calibration operating phase, a second reference signal comprising a second reference signal frequency, which differs from the first reference signal frequency; and a signal property detector configured to detect, in the normal operating phase, the transmit signal property based on a combination of the first reference signal with the transmit signal or with a signal derived from the transmit signal; and the signal property detector further configured to acquire, in the calibration operating phase, a calibration signal based on a combination of the second reference signal with the transmit signal or with the signal derived from the transmit signal, wherein the calibration signal describes a disturbing portion introduced into the detected transmit signal property by the RF feedback receiver arrangement itself. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An RF transmit arrangement for providing a transmit signal, comprising:
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an RF feedback receiver arrangement configured to detect a transmit signal property of a transmit signal of an RF transmit arrangement, the RF feedback receiver arrangement comprising a normal operating phase and a calibration operating phase, comprising; a reference signal provider configured to provide, in the normal operating phase, a first reference signal comprising a first reference signal frequency and to provide, in the calibration operating phase, a second reference signal comprising a second reference signal frequency, which differs from the first reference signal frequency; and a signal property detector configured to detect, in the normal operating phase, the transmit signal property based on a combination of the first reference signal with the transmit signal or with a signal derived from the transmit signal; and the signal property detector further being configured to acquire, in the calibration operating phase, a calibration signal based on a combination of the second reference signal with the transmit signal or with the signal derived from the transmit signal, wherein the calibration signal describes a disturbing portion introduced into the detected transmit signal property by the RF feedback receiver arrangement itself; a first signal generator configured to generate a transmit carrier signal comprising a transmit carrier frequency and generate the first reference signal, wherein the first reference signal is based on the transmit carrier signal; a second signal generator configured to generate the second reference signal; and a transmit path configured to provide the transmit signal based on a combination of the transmit carrier signal with a transmit baseband signal, the transmit path being configured to provide the transmit signal or the signal derived from the transmit signal at the signal property detector of the RF feedback receiver arrangement.
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18. An RF transceiver arrangement for receiving a receive signal and for providing a transmit signal, comprising:
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an RF feedback receiver arrangement configured to detect a transmit signal property of a transmit signal of an RF transmit arrangement, the RF feedback receiver arrangement comprising a normal operating phase and a calibration operating phase, comprising; a reference signal provider configured to provide, in the normal operating phase, a first reference signal comprising a first reference signal frequency and provide, in the calibration operating phase, a second reference signal comprising a second reference signal frequency, which differs from the first reference signal frequency; and a signal property detector configured to detect, in the normal operating phase, the transmit signal property based on a combination of the first reference signal with the transmit signal or with a signal derived from the transmit signal; and the signal property detector further being configured to acquire, in the calibration operating phase, a calibration signal based on a combination of the second reference signal with the transmit signal or with the signal derived from the transmit signal, the calibration signal describing a disturbing portion introduced into the detected transmit signal property by the RF feedback receiver arrangement itself; a first signal generator configured to generate a transmit carrier signal comprising a transmit carrier frequency and configured to generate the first reference signal, wherein the first reference signal is based on the transmit carrier signal; a second signal generator configured to generate a receive carrier signal comprising a receive carrier frequency and generate the second reference signal, wherein the second reference signal is based on the receive carrier signal; a transmit path configured to provide the transmit signal based on a combination of the transmit carrier signal with a transmit baseband signal, the transmit path being configured to provide the transmit signal or the signal derived from the transmit signal at the signal property detector of the feedback receiver arrangement; and a receive path configured to provide a receive baseband signal based on a combination of the receive signal or of a signal derived therefrom with the receive carrier signal. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. An RF feedback receiver arrangement for detecting a transmit signal property of a transmit signal of an RF transmit arrangement, the RF feedback receiver arrangement being configured to detect, in a normal operating phase, the transmit signal property based on a combination of a first reference signal comprising a first reference signal frequency with the transmit signal or with a signal derived from the transmit signal, and to acquire, in a calibration operating phase, a calibration signal based on a combination of a second reference signal comprising a second reference signal frequency which differs from the first reference signal frequency with the transmit signal or with the signal derived from the transmit signal, wherein the calibration signal describes a disturbing portion introduced into the detected transmit signal property by the RF feedback receiver arrangement itself.
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27. An RF feedback receiver arrangement for detecting a transmit signal property of a transmit signal of an RF transmit arrangement, the RF feedback receiver arrangement comprising a normal operating phase and a calibration operating phase, comprising:
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a reference signal provider configured to provide, in the normal operating phase, a first reference signal comprising a first reference signal frequency and provide, in the calibration operating phase, a second reference signal comprising a second reference signal frequency, which differs from the first reference signal frequency; and a signal property detector configured to detect, in the normal operating phase, the transmit signal property based on a combination of the first reference signal with the transmit signal or with a signal derived from the transmit signal; the signal property detector further being configured to acquire, in the calibration operating phase, a calibration signal based on a combination of the second reference signal with the transmit signal or with the signal derived from the transmit signal, wherein the calibration signal describes a disturbing portion introduced into the detected transmit signal property by the RF feedback receiver arrangement itself; wherein the signal property detector is configured—
in a case where the first reference signal is a carrier signal of the transmit signal—
to mix the transmit signal or the signal derived from the transmit signal with the first reference signal into a baseband, in the normal operating phase, based on the combination of the transmit signal or of the signal derived from the transmit signal, so as to detect the transmit signal property based on the transmit signal mixed into the baseband or based on the signal derived from the transmit signal and mixed into the baseband, and to mix the transmit signal or the signal derived from the transmit signal, in the calibration operating phase, into a band shifted to the baseband in the combination of the second reference signal with the transmit signal or with the signal derived from the transmit signal, and to mix the self-introduced disturbing portion into the baseband so as to acquire the calibration signal from the disturbing portion mixed into the baseband;wherein the reference signal provider comprises a first input terminal configured to receive the first reference signal, a second input terminal configured to receive the second reference signal, and an output terminal configured to provide the first reference signal and provide the second reference signal; wherein the reference signal provider comprises a change-over switch configured to couple, in the normal operating phase, the first input terminal to the output terminal and couple, in the calibration operating phase, the second input terminal to the output terminal; wherein the reference signal provider comprises a transmission path connected between the change-over switch and the second input terminal, wherein the transmission path comprises a first transmission path switch to decouple the second input terminal from the change-over switch in the normal operating phase; wherein the transmission path of the reference signal provider further comprises a second transmission path switch and a shielded line, wherein the shielded line is connected between the first transmission path switch and the second transmission path switch; wherein the reference signal provider is configured to decouple the shielded line from the second input terminal and from the change-over switch in the normal operating phase using the first transmission path switch and the second transmission path switch; wherein the transmission path comprises an attenuator, an amplifier and a shielded line connected between the attenuator and the amplifier.
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Specification