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公开(公告)号：US10454748B2
公开(公告)日：2019-10-22
申请号：US15754043
申请日：2015-09-25
Applicant: Intel IP Corporation
Inventor： Burkhard Neurauter , Christian Mayer , Jan Zaleski , Jovan Markovic
Abstract: An apparatus for generating a radio frequency signal based on a symbol within a constellation diagram is provided. The constellation diagram is spanned by a first axis representing an in-phase component and an orthogonal second axis representing a quadrature component. The apparatus includes a processing unit configured to select one of a plurality of segments of the constellation diagram containing the symbol. The segment is delimited by two radially extending boundaries, wherein the two radially extending boundaries span an opening angle of the segment that is different from 90°. The processing unit is further configured to calculate a first coordinate of the symbol with respect to a third axis, and a second coordinate of the symbol with respect to a fourth axis. At least one of the third axis and the fourth axis coincides with one of the two radially extending boundaries. The apparatus further includes a plurality of digital-to-analog converter cells configured to generate the radio frequency signal using the first coordinate and the second coordinate.
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2.发明申请公开(公告)号：US20180159585A1
公开(公告)日：2018-06-07
申请号：US15575867
申请日：2016-06-08
Applicant: Intel IP Corporation
Inventor： Ram Kanumalli , Andreas Mayer , Werner Schelmbauer , Ahmed S. Elmaghraby , Burkhard Neurauter
CPC classification number: H04B1/525 , H04B1/1027 , H04B2001/0408 , H04L25/02 , H04L27/12
Abstract: A method for reducing a distortion component within a baseband receive signal is provided. The baseband receive signal is derived from a radio frequency signal and the distortion component is related to an undesired signal component of the radio frequency signal. The method includes generating a first local oscillator signal having a frequency related to a frequency of the undesired signal component. Further the method includes generating an auxiliary baseband signal using the radio frequency signal and the first local oscillator signal. The method further includes generating a second local oscillator signal having a frequency related to a frequency of a desired signal component of the radio frequency signal. Further the method includes generating the baseband receive signal using the radio frequency signal and the second local oscillator signal. The method includes modifying the baseband receive signal based on the auxiliary baseband signal.
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Patent Agency Ranking
3.发明申请公开(公告)号：US20180287719A1
公开(公告)日：2018-10-04
申请号：US15474243
申请日：2017-03-30
Applicant: Intel IP Corporation
Inventor： Ram Sunil Kanumalli , Andreas Mayer , Ahmed Elmaghraby , Mario Huemer , Burkhard Neurauter
Abstract: A transceiver that implements a frequency domain cancellation of a transmit (Tx)-modulated spur associated with a transceiver is disclosed. The transceiver comprises a baseband receive (Rx) path configured to propagate a receive signal in frequency domain, associated with an Rx signal path of the transceiver, forming a baseband Rx signal, wherein the baseband Rx signal comprises a wanted Rx signal and an unwanted transmit (Tx) modulated spur. The transceiver further comprises a baseband Tx path configured to propagate a Tx signal in frequency domain, associated with the Tx signal path of the transceiver, thereby forming a baseband Tx signal. In addition, the transceiver comprises a cancellation circuit coupled to the baseband Rx path, configured to receive the baseband Rx signal and the baseband Tx signal, and generate a cancellation signal based thereon, in order to cancel the unwanted Tx modulated spur from the baseband Rx signal.
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公开(公告)号：US20200245248A1
公开(公告)日：2020-07-30
申请号：US15760859
申请日：2016-08-22
Applicant: Intel IP Corporation
Inventor： Christian Drewes , Giuseppe Patane , Thomas Mayer , Christian Wicpalek , Ram Kanumalli , Burkhard Neurauter
Abstract: A receiver includes a tunable receiving chain, configured to receive a subframe header when tuned to a first receiving bandwidth; a decoder, configured to decode an allocation information from the subframe header, the allocation information indicating an allocation of a plurality of resource blocks in the subframe; and a controller, configured to derive a second receiving bandwidth from the allocation information and to tune the receiving chain to the second receiving bandwidth.
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5.发明授权公开(公告)号：US10587349B2
公开(公告)日：2020-03-10
申请号：US15474243
申请日：2017-03-30
Applicant: Intel IP Corporation
Inventor： Ram Sunil Kanumalli , Andreas Mayer , Ahmed Elmaghraby , Mario Huemer , Burkhard Neurauter
Abstract: A transceiver that implements a frequency domain cancellation of a transmit (Tx)-modulated spur associated with a transceiver is disclosed. The transceiver comprises a baseband receive (Rx) path configured to propagate a receive signal in frequency domain, associated with an Rx signal path of the transceiver, forming a baseband Rx signal, wherein the baseband Rx signal comprises a wanted Rx signal and an unwanted transmit (Tx) modulated spur. The transceiver further comprises a baseband Tx path configured to propagate a Tx signal in frequency domain, associated with the Tx signal path of the transceiver, thereby forming a baseband Tx signal. In addition, the transceiver comprises a cancellation circuit coupled to the baseband Rx path, configured to receive the baseband Rx signal and the baseband Tx signal, and generate a cancellation signal based thereon, in order to cancel the unwanted Tx modulated spur from the baseband Rx signal.
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6.发明授权公开(公告)号：US10230421B2
公开(公告)日：2019-03-12
申请号：US15575867
申请日：2016-06-08
Applicant: Intel IP Corporation
Inventor： Ram Kanumalli , Andreas Mayer , Werner Schelmbauer , Ahmed S. Elmaghraby , Burkhard Neurauter
Abstract: A method for reducing a distortion component within a baseband receive signal is provided. The baseband receive signal is derived from a radio frequency signal and the distortion component is related to an undesired signal component of the radio frequency signal. The method includes generating a first local oscillator signal having a frequency related to a frequency of the undesired signal component. Further the method includes generating an auxiliary baseband signal using the radio frequency signal and the first local oscillator signal. The method further includes generating a second local oscillator signal having a frequency related to a frequency of a desired signal component of the radio frequency signal. Further the method includes generating the baseband receive signal using the radio frequency signal and the second local oscillator signal. The method includes modifying the baseband receive signal based on the auxiliary baseband signal.
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公开(公告)号：US20180248740A1
公开(公告)日：2018-08-30
申请号：US15754043
申请日：2015-09-25
Applicant: Intel IP Corporation
Inventor： Burkhard Neurauter , Christian Mayer , Jan Zaleski , Jovan Markovic
CPC classification number: H04L27/362 , H04L27/3444
Abstract: An apparatus for generating a radio frequency signal based on a symbol within a constellation diagram is provided. The constellation diagram is spanned by a first axis representing an in-phase component and an orthogonal second axis representing a quadrature component. The apparatus includes a processing unit configured to select one of a plurality of segments of the constellation diagram containing the symbol. The segment is delimited by two radially extending boundaries, wherein the two radially extending boundaries span an opening angle of the segment that is different from 90°. The processing unit is further configured to calculate a first coordinate of the symbol with respect to a third axis, and a second coordinate of the symbol with respect to a fourth axis. At least one of the third axis and the fourth axis coincides with one of the two radially extending boundaries. The apparatus further includes a plurality of digital-to-analog converter cells configured to generate the radio frequency signal using the first coordinate and the second coordinate.
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