Transceiver device and a method for generating a compensation signal

Patent metadata

Field	Value
Publication number	US-9680671-B2
Application number	US-201414550277-A
Country	US
Kind code	B2
Filing date	Nov 21, 2014
Priority date	Dec 23, 2013
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

A transceiver device 100 includes a transmit path module 110 , a receive path module 120 and a compensation signal generator module 130 . The transmit path module 110 generates a high frequency transmit signal 112 based on a baseband transmit signal. The receive path module 120 generates a baseband receive signal 122 based on a received high frequency receive signal 114 . Further, the compensation signal generator module 130 generates a compensation signal 132 comprising at least one signal portion with a frequency equal to a frequency of an undesired signal portion of the baseband receive signal 122 caused by an undesired signal portion within the high frequency transmit signal 112 comprising a frequency equal to an integer multiple larger than 1 of a transmit frequency of the high frequency transmit signal 112.

First claim

The invention claimed is:

1. A transceiver device comprising:
transmit path circuitry configured to generate a high frequency transmit signal based on a baseband transmit signal comprising a frequency component;
receive path circuitry configured to generate a baseband receive signal based on a received high frequency receive signal; and
compensation signal generator circuitry configured to generate a compensation signal by signal processing of the baseband transmit signal, wherein the compensation signal generator circuitry comprises harmonic generator circuitry to generate a harmonic generator output signal based on the baseband transmit signal and on at least one specified harmonic of the frequency component wherein the compensation signal comprises at least a signal portion specific to the at least one specified harmonic that interferes with a channel bandwidth of the receive path circuitry;
wherein the receive path circuitry includes compensation circuitry that is configured to subtract the compensation signal from the baseband receive signal.

2. The transceiver device according to claim 1 , wherein the harmonic generator circuitry is configured to generate a harmonic generator output signal based on a polar modulated baseband signal containing information on the baseband transmit signal.

3. The transceiver device according to claim 2 , wherein the harmonic generator circuitry comprises multiplier circuitry configured to generate a multiplier output signal based on a multiplication of the phase signal of the polar modulated baseband signal with an integer multiple.

4. The transceiver device according to claim 1 , wherein the harmonic generator circuitry comprises adder circuitry configured to generate an adder output signal based on an addition of the phase signal of the polar modulated baseband signal or the multiplier output signal and a frequency offset signal comprising information on an frequency offset.

5. The transceiver device according to claim 1 , wherein the harmonic generator circuitry comprises amplitude adaptation circuitry configured to generate an amplitude adaptation output signal based on the amplitude signal of the polar modulated baseband signal and at least one amplitude adaptation parameter signal comprising information on a nonlinear distortion.

6. The transceiver device according to claim 5 , wherein the harmonic generator circuitry comprises coordinate conversion circuitry configured to generate an inphase-quadraturephase modulated baseband transmit signal based on the amplitude adaptation output signal and the multiplier output signal or the adder output signal.

7. The transceiver device according to claim 1 , wherein the compensation signal generator circuitry comprises harmonic generator circuitry configured to generate a harmonic generator output signal based on an inphase-quadraturephase modulated baseband signal containing information on the baseband transmit signal.

8. The transceiver device according to claim 7 , wherein the harmonic generator circuitry is configured to generate the harmonic generator output signal based on at least determining the inphase-quadraturephase modulated baseband transmit signal to the power of an integer multiple, a frequency up-conversion to at least half a channel bandwidth and a frequency shift.

9. The transceiver device according to claim 1 , wherein the compensation signal generator circuitry is configured to generate the compensation signal based on a frequency shift applied to a baseband signal containing information on the baseband transmit signal.

10. The transceiver device according to claim 1 , wherein the compensation signal generator circuitry is configured to generate the compensation signal with a phase corresponding to a phase of the baseband transmit signal multiplied by an integer greater than 1.

11. The transceiver device according to claim 2 , wherein the compensation signal generator circuitry comprises low pass filter circuitry configured to generate a low pass filter output signal by low pass filtering a baseband signal containing information on the harmonic generator output signal.

12. The transceiver device according to claim 11 , wherein the low pass filter circuitry comprises a cut-off frequency higher than a cut-off frequency of a channel filter of the receive path.

13. The transceiver device according to claim 11 , wherein the low pass filter circuitry comprises a frequency response corresponding to a frequency response of a low pass filter of the receive path.

14. The transceiver device according to claim 2 , wherein the compensation signal generator circuitry comprises integer delay circuitry configured to generate an integer delay output signal by delaying a baseband signal containing information on the harmonic generator output signal.

15. The transceiver device according to claim 2 , wherein the compensation signal generator circuitry comprises down-sampling circuitry configured to generate a down-sampling output signal by down-sampling a baseband signal containing information on the harmonic generator output signal.

16. The transceiver device according to claim 2 , wherein the compensation signal generator circuitry comprises adaptive filter circuitry configured to generate an adaptive filter output signal by adaptively filtering a baseband signal containing information on the harmonic generator output signal.

17. The transceiver device according to claim 2 , wherein the compensation signal generator circuitry comprises an estimator module configured to provide at least one estimator output signal containing information on at least one parameter for phase adaptation, frequency adaptation or amplitude adaptation to the harmonic generator circuitry.

18. The transceiver device according to claim 1 , comprising compensation circuitry configured to generate a compensated baseband receive signal based on the compensation signal and a baseband signal containing information on the baseband receive signal.

19. The transceiver device according to claim 1 , wherein the compensation signal generator circuitry is a digital signal processor.

20. The transceiver device according to claim 1 , comprising compensation control circuitry configured to deactivate a consideration of the compensation signal, if signal portions of the high frequency receive signal caused by undesired signal portions within the high frequency transmit signal comprising frequencies equal to an integer multiple of a transmit frequency of the high frequency transmit signal are located only at frequencies outside a current receive band of the receive path.

21. A mobile device comprising the transceiver device according to claim 1 .

22. The transceiver device according to claim 1 , wherein the signal processing of the baseband transmit signal includes nonlinear signal processing.

23. A method for compensating a receive signal performed by a transceiver, the method comprising:
generating a high frequency transmit signal based on a baseband transmit signal comprising a frequency component;
generating a baseband receive signal based on a received high frequency receive signal; and
generating a compensation signal by signal processing of the baseband transmit signal, including generating a harmonic signal that is based on the baseband transmit signal and on at least one specified harmonic of the frequency component wherein the compensation signal comprises at least a signal portion specific to the at least one specified

Assignees

• Intel Ip Corp

Inventors

• Noest Peter
• Chance Gregory

Classifications

• H04B1/525

  with means for reducing leakage of transmitter signal into the receiver · CPC title

• H04B1/40

  Circuits · CPC title

• H04L25/08 Primary

  Modifications for reducing interference; Modifications for reducing effects due to line faults {; Receiver end arrangements for detecting or overcoming line faults} · CPC title

• H04B1/0475

  with means for limiting noise, interference or distortion (H04B1/0483 takes precedence) · CPC title

• H04B1/10

  Means associated with receiver for limiting or suppressing noise or interference · CPC title