公开(公告)号：US11901932B2

公开(公告)日：2024-02-13

申请号：US17595834

申请日：2020-05-26

Applicant: INTEL CORPORATION

Inventor： Oren Ezra Avraham ,  Josef Holzleitner ,  Ram Sunil Kanumalli ,  Harald Pretl ,  Silvester Sadjina ,  Werner Schelmbauer

IPC: H04B1/525 ,  H04B1/40

CPC classification number: H04B1/525

Abstract: A method and apparatus for cancelling an interference in a received signal. The apparatus may include a plurality of receivers and one or more transmitters. The first receiver is configured to process a received signal. The first receiver includes a mixer to down-convert the received signal using a first local oscillator signal having a first frequency. The received signal includes a wanted signal and an unwanted signal. The second receiver is configured to process the received signal and generate an interference reference signal. The second receiver includes a mixer to down-convert the received signal using a second local oscillator signal having a second frequency. The apparatus includes an interference canceller configured to cancel, in a digital domain, at least in part interference caused by non-linear characteristics of the first receive chain in a presence of the unwanted signal from the down-converted received signal by the first receive chain.

公开(公告)号：US11233536B2

公开(公告)日：2022-01-25

申请号：US16956738

申请日：2018-03-28

Applicant: Intel Corporation

Inventor： Mohammed Alam ,  Yiwen Chen ,  Ricardo Fernandez ,  John J. Parkes, Jr. ,  James Riches ,  Werner Schelmbauer ,  Daniel Schwartz ,  Michael David Vicker ,  Dong-Jun Yang

IPC: H04B1/26 ,  H04B1/18 ,  H04B7/0413 ,  H04B7/08 ,  H04L25/02

Abstract: A wireless communication device can include an antenna array configured to receive a plurality of radio frequency (RF) signals, RF circuitry, and digital baseband receive circuitry. The RF circuitry is configured to process the plurality of RF signals received via the antenna array to generate a single RF signal. The digital baseband receive circuitry is coupled to the RF circuitry and is configured to generate a downconverted signal based on the single RF signal, amplify the downconverted signal to generate an amplified downconverted signal, and convert the amplified downconverted signal to generate a digital output signal for processing by a wireless modem. The digital baseband receive circuitry further includes at least a first filtering system configured to filter the downconverted signal prior to amplification.