Radar Unit, Integrated Circuit and Methods for Detecting and Mitigating Mutual Interference

    公开(公告)号:US20190195985A1

    公开(公告)日:2019-06-27

    申请号:US16176430

    申请日:2018-10-31

    Applicant: NXP B.V.

    Inventor: YU LIN Chuang Lu

    Abstract: A radar unit (400) for detecting an existence of interference is described that includes: a millimetre wave (mmVV) transceiver (Tx/Rx) circuit configured to radiate a transmit radar signal and receive an echo signal thereof; a mixed analog and baseband circuit operably coupled to the mmW Tx/Rx circuit; and a signal processor circuit (452) operably coupled to the mixed analog and baseband circuit. An interference detection unit (448) is operably coupled to the mmW Tx/Rx circuit and configured to: monitor a whole or a portion of a radar frequency band supported by the radar unit and identify, from a received interference signal, an arrival direction of the identified interference and a level of interference and output an interference detected signal; and wherein the signal processor circuit (452) is configured to analyse the interference detected signal and quantify a response to the detection of an arrival direction and a level of received interference.

    COMMUNICATION UNIT, INTEGRATED CIRCUITS AND METHODS FOR CASCADING INTEGRATED CIRCUITS

    公开(公告)号:US20190178983A1

    公开(公告)日:2019-06-13

    申请号:US16174997

    申请日:2018-10-30

    Applicant: NXP B.V.

    Abstract: A communication unit, such as a radar unit (500) includes a plurality of cascaded millimetre wave, mmW, transceiver, TRx, circuit, each comprising at least one phase shift circuit (616) and each coupled to respective antennas; and a signal processor circuit (552) operably coupled to the plurality of cascaded mmW TRx circuits and configured to process transmit and receive signals of the plurality of cascaded mmW TRx circuits. The radar unit (500) further comprises: a first TRx circuit (320) of the plurality of cascaded mmW TRx circuits being configured to wirelessly transmit (360) a signal to a second TRx circuit (322) via a respective antenna; a localization processing circuit (580) operably coupled to at least one of the first TRx circuit (320) and second TRx circuit (322) and configured to wirelessly determine a distance relationship (350) between at least one antenna coupled to the first TRx circuit (320) and at least one antenna coupled to the second TRx circuit (322); and a phase control unit (602), operably coupled to the localization processing circuit (570) and configured to adjust at least one phase shifter (616) in response to the wirelessly determined distance relationship.

    RADAR UNIT, INTEGRATED CIRCUIT AND METHODS FOR DETECTING AND MITIGATING MUTUAL INTERFERENCE

    公开(公告)号:US20190056476A1

    公开(公告)日:2019-02-21

    申请号:US16012225

    申请日:2018-06-19

    Applicant: NXP B.V.

    Inventor: YU LIN

    Abstract: A radar unit (400) for detecting an existence of interference is described that includes: a millimetre wave (mmW) transceiver (Tx/Rx) circuit configured support a normal data acquisition mode of operation that comprises transmitting a radar signal waveform and receiving an echo signal thereof; a mixed analog and baseband circuit operably coupled to the mmW Tx/Rx circuit; and a signal processor circuit (452) operably coupled to the mixed analog and baseband circuit. An interference detection unit (448) is operably coupled to the mmW Tx/Rx circuit. The radar unit is configured to operate a time-discontinuous mode of operation that includes a first time portion used as an interference monitoring period and a second time portion used by the radar unit in the normal data acquisition mode of operation, whereby the mixed analog and baseband circuit, signal processor circuit (452) and interference detection unit (448) are configured to detect interference signals during the monitoring period.

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