Digital suppression of transmitter intermodulation in receiver

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9473200
APP PUB NO 20150263782A1
SERIAL NO

14728095

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Systems and methods for suppressing transmitter noise in a receive band of a co-located receiver that are suitable for wideband applications are disclosed. In one embodiment, a transmitter is configured to upconvert and amplify a digital transmit signal to provide an analog radio frequency transmit signal at an output of the transmitter that includes a desired signal in a transmit band of the transmitter and transmitter noise in a receive band of a main receiver. The main receiver is configured to amplify, downconvert, and digitize an analog radio frequency receive signal to provide a digital receive signal. The digital feedforward transmit noise cancellation subsystem is configured to process the digital transmit signal to generate a digital transmitter noise cancellation signal that is representative of the transmitter noise in the receive band and is subtracted from the digital receive signal to thereby provide a compensated digital receive signal.

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First Claim

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Patent Owner(s)

  • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dalipi, Spendim Sollentuna, SE 10 118
Thorebäck, Lars Johan Sundbyberg, SE 9 63
Wyville, Mark Ottawa, CA 21 208

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