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公开(公告)号：US11115066B2
公开(公告)日：2021-09-07
申请号：US16463107
申请日：2016-12-22
申请人： Intel Corporation
摘要： An energy-efficient implementation of a WiFi transceiver is proposed in this disclosure. The WiFi transceiver comprises a receive chain comprising a variable receive (Rx) filter circuit and a variable Rx analog-to-digital converter (ADC) circuit. The receive chain is configured to receive a receive signal during a receive mode of operation, having a receive bandwidth associated therewith and receive a transmit signal associated with a transmit chain of the transceiver during a transmit mode of operation, having a transmit bandwidth associated therewith. The WiFi transceiver further comprises a control circuit configured to dynamically adapt a bandwidth of the variable Rx filter and the variable Rx ADC in the receive chain to the receive bandwidth or to the transmit bandwidth, based on the mode of operation.
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公开(公告)号：US12009845B2
公开(公告)日：2024-06-11
申请号：US16928309
申请日：2020-07-14
申请人： Intel Corporation
CPC分类号： H04B1/04 , H04B1/62 , H04L5/14 , H04B2001/0416 , H04B2001/0425
摘要： Examples relate to a concept for a Radio-Frequency (RF) frontend, and for a communication device comprising such an RF frontend. A radio-frequency frontend apparatus comprises a receive branch, comprising circuitry configured to obtain a received signal and a digital pre-distortion feedback signal from an external transceiver device. The radio-frequency frontend apparatus comprises power measurement circuitry configured to generate a first signal that represents a power of the received signal based on the received signal, and to generate a second signal that represents a power of an amplified signal based on the digital pre-distortion feedback signal, the amplified signal being a signal that is amplified by a power amplifier of the external transceiver device.
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公开(公告)号：US12003225B2
公开(公告)日：2024-06-04
申请号：US17306986
申请日：2021-05-04
申请人： Intel Corporation
发明人： Harald Enzinger , Steffen Trautmann
CPC分类号： H03H11/1291 , H03G3/3042 , H03H11/0405 , H03H21/0012 , H03H2011/0494 , H03H2021/0079
摘要： The present disclosure relates to a concept of nonlinear signal processing which may be used for predistortion for RF power amplifiers. The concept includes generating time variant filter coefficients for a linear filter circuit based on a nonlinear mapping of an input signal, and filtering the input signal with the linear filter circuit using the time variant filter coefficients in order to generate a filtered output signal. Thus, it is proposed to implement a non-linear filter by a time-varying linear filter where the time-varying coefficients are derived from the input signal.
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公开(公告)号：US11716102B2
公开(公告)日：2023-08-01
申请号：US17464740
申请日：2021-09-02
申请人： Intel Corporation
CPC分类号： H04B1/0067 , H03M3/464 , H04B1/40 , H03G3/3036 , H03G2201/103 , H04W84/12
摘要： An energy-efficient implementation of a WiFi transceiver is proposed in this disclosure. The WiFi transceiver comprises a receive chain comprising a variable receive (Rx) filter circuit and a variable Rx analog-to-digital converter (ADC) circuit. The receive chain is configured to receive a receive signal during a receive mode of operation, having a receive bandwidth associated therewith and receive a transmit signal associated with a transmit chain of the transceiver during a transmit mode of operation, having a transmit bandwidth associated therewith. The WiFi transceiver further comprises a control circuit configured to dynamically adapt a bandwidth of the variable Rx filter and the variable Rx ADC in the receive chain to the receive bandwidth or to the transmit bandwidth, based on the mode of operation.
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