Pre-distortion of receive signal for interference mitigation in broadband transceivers
First Claim
Patent Images
1. A broadband transceiver, including:
- an input to receive an RF signal;
an output to output an RF transmit signal;
a receiver section coupled to the input;
a transmitter section coupled to the output;
a processor coupled to the receiver section and the transmitter section, to determine and generate an inverse waveform that will result in attenuation of undesired portions of a received RF signal when summed with the received signal, wherein the processor includes;
a spectrum analyzer to provide information about spectral characteristics of the received RF signal;
an inverse waveform selector to determine the inverse waveform; and
an inverse waveform shaper for generating the inverse waveform; and
a summing junction coupled between the processor and receiver section, to sum the inverse waveform with the received signal.
1 Assignment
0 Petitions
Accused Products
Abstract
A broadband transceiver includes an input to receive an RF signal, an output to output an RF transmit signal, a receiver section coupled to the input, and a transmitter section coupled to the output. A processor coupled to the receiver section and the transmitter section determines and generates an inverse waveform that will result in attenuation of undesired portions of a received RF signal when summed with the received signal, including optionally at one or more of an RF stage and an IF stage. A summing junction coupled between the processor and receiver section sums the inverse waveform with the received signal.
-
Citations
29 Claims
-
1. A broadband transceiver, including:
-
an input to receive an RF signal; an output to output an RF transmit signal; a receiver section coupled to the input; a transmitter section coupled to the output; a processor coupled to the receiver section and the transmitter section, to determine and generate an inverse waveform that will result in attenuation of undesired portions of a received RF signal when summed with the received signal, wherein the processor includes; a spectrum analyzer to provide information about spectral characteristics of the received RF signal; an inverse waveform selector to determine the inverse waveform; and an inverse waveform shaper for generating the inverse waveform; and a summing junction coupled between the processor and receiver section, to sum the inverse waveform with the received signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A method for operating a broadband transceiver, including:
-
determining undesired portions of a received RF signal; generating an inverse waveform that, when summed with the received signal, will attenuate the undesired portions of the received RF signal, wherein generating the inverse waveform includes; spectrum analyzing the received signals, and determining the undesired portions based on the spectrum analysis; selecting the inverse waveform; and shaping the inverse waveform; and summing the inverse waveform with the received signal. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
Specification