Patents by Inventor Sutharshun VARATHARAAJAN
Sutharshun VARATHARAAJAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240073896Abstract: Methods and apparatuses for enhancing the reliability and performance of the PDCCH in a wireless network. The method performed by a UE comprises: receiving a configuration of search space sets for the PDCCH, each search space set comprises a number of PDCCH candidates made up of a number of resource elements; monitoring for DCIs of a specific format as indicated in the configured PDCCH candidates; wherein a configuration an indication of an association of the search space sets with a search space set pool is provided to the UE, and at least two PDCCH candidates from the search space sets are associated with the same DCI content, or an association of two or more TCI states with a single CORESET is obtained from the network node; and applying the configuration(s) or indication of the association for receiving one or more PDCCH(s) on the search space sets.Type: ApplicationFiled: October 16, 2023Publication date: February 29, 2024Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Marcus Grossmann, Markus Landmann, Sutharshun Varatharaajan
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Publication number: 20240032063Abstract: The embodiments relate to methods and apparatuses for enabling transmission of at least one PUSCH. A method comprises: configuring a UE to receive a single PDCCH or a higher layer grant that schedules at least one PUSCH transmission occasion. If one PUSCH transmission occasion is scheduled: scheduling the UE to transmit at least two segments of the PUSCH, each segment is associated with a transmission setting comprising a set of transmission parameters, at least one transmission parameter associated with one of the segments is different from the corresponding transmission parameter associated with at least one other segment. If more than one PUSCH transmission occasion is scheduled, each PUSCH transmission occasion is associated with a transmission setting, wherein at least one transmission parameter associated with one of the PUSCH transmission occasions is different from the corresponding transmission parameter associated with one other PUSCH transmission occasion.Type: ApplicationFiled: September 28, 2023Publication date: January 25, 2024Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Marcus Grossmann, Markus Landmann, Sutharshun Varatharaajan
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Publication number: 20240022310Abstract: An apparatus for transmitting and receiving data in a wireless communication system according to an embodiment is provided, configured to receive a first message and/or a second message from a further network entity, and configured to determine one or more transmit spatial filters and/or one or more receive spatial filters and/or one or more beam directions; wherein the transmit spatial filters and/or the receive spatial filters are identical to at least one initial spatial filter or are derived by the apparatus from the at least one initial spatial filter; wherein the beam directions are identical to at least one initial beam direction or are derived by the apparatus from the at least one initial beam direction. Furthermore, the apparatus is configured to apply the transmit spatial filters and/or the receive spatial filters and/or the beam directions on one or more downlink resources and/or on one or more uplink resources.Type: ApplicationFiled: September 27, 2023Publication date: January 18, 2024Inventors: Mohammad ALAWIEH, Sutharshun VARATHARAAJAN, Marcus GROßMANN
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Patent number: 11871220Abstract: The embodiments relate to methods and apparatuses for enabling transmission of at least one PUSCH. A method comprises: configuring a UE to receive a single PDCCH or a higher layer grant that schedules at least one PUSCH transmission occasion. If one PUSCH transmission occasion is scheduled: scheduling the UE to transmit at least two segments of the PUSCH, each segment is associated with a transmission setting comprising a set of transmission parameters, at least one transmission parameter associated with one of the segments is different from the corresponding transmission parameter associated with at least one other segment. If more than one PUSCH transmission occasion is scheduled, each PUSCH transmission occasion is associated with a transmission setting, wherein at least one transmission parameter associated with one of the PUSCH transmission occasions is different from the corresponding transmission parameter associated with one other PUSCH transmission occasion.Type: GrantFiled: March 11, 2021Date of Patent: January 9, 2024Inventors: Marcus Grossmann, Markus Landmann, Sutharshun Varatharaajan
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Common and Default Beam Indication of Uplink and Downlink Channel Resources and/or Reference Signals
Publication number: 20230403108Abstract: The embodiments of the present disclosure relate to methods and apparatuses for signaling framework for flexible beam management in a wireless communications network.Type: ApplicationFiled: October 21, 2021Publication date: December 14, 2023Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Marcus Grossmann, Sutharshun Varatharaajan -
Publication number: 20230379108Abstract: The embodiment of the present disclosure relates to methods and apparatuses for sounding reference signal configuration and triggering in wireless communications network such as advanced 5G networks. A method performed by a user equipment comprising: receiving a higher layer configuration that associates SRS resource, with a control resource set pool index which is a higher-layer parameter in a configuration of CORESET comprising resources on which a PDCCH is transmitted from a network node and deriving a spatial relation or a reference signal as pathloss reference for said SRS resource with reference to at least one reference signal from quasi-colocation (QCL) information of a CORESET associated with the control resource set pool index; wherein the QCL information comprises a relationship between one or more reference signals and DMRS port(s) of the PDCCH transmitted on the CORESET and the relationship indicates parameter(s) that are obtained from the reference signals.Type: ApplicationFiled: January 27, 2021Publication date: November 23, 2023Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Marcus Grossmann, Markus Landmann, Sutharshun Varatharaajan
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Patent number: 11818712Abstract: Methods and apparatuses for enhancing the reliability and performance of the PDCCH in a wireless network. The method performed by a UE comprises: receiving a configuration of search space sets for the PDCCH, each search space set comprises a number of PDCCH candidates made up of a number of resource elements; monitoring for DCIs of a specific format as indicated in the configured PDCCH candidates; wherein a configuration or an indication of an association of the search space sets with a search space set pool is provided to the UE, and at least two PDCCH candidates from the search space sets are associated with the same DCI content, or an association of two or more TCI states with a single CORESET is obtained from the network node; and applying the configuration(s) or indication of the association for receiving one or more PDCCH(s) on the search space sets.Type: GrantFiled: May 4, 2021Date of Patent: November 14, 2023Inventors: Marcus Grossmann, Markus Landmann, Sutharshun Varatharaajan
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Publication number: 20230262693Abstract: The methods and apparatuses for signaling framework for flexible beam management in a wireless communications network. A method performed by a UE comprises: receiving, from a network node, via a higher layer, a configuration of at least one information element (IE), said configuration comprising at least: an identifier (ID) unique to each IE and ID(s) of one or more uplink (UL) resource(s) and/or downlink (DL) resource(s) that is/are used to indicate at least a spatial filter or beam direction for transmission of at least a Physical Uplink Shared Channel (PUSCH) resource and/or a Physical Uplink Control Channel (PUCCH) resource, and/or a Sounding reference Signal (SRS) resource; and applying the configuration provided in the at least one IE for the transmission of the PUSCH resource, and/or the PUCCH resource and/or the SRS resource. There is also provided a method performed by a network node, a UE and a network node.Type: ApplicationFiled: September 20, 2021Publication date: August 17, 2023Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Marcus Grossmann, Sutharshun Varatharaajan
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Publication number: 20230246785Abstract: The embodiment of the present disclosure relates to methods and apparatuses for enhancing the reporting of the channel state information (CSI) with respect to multiple downlink resources. A method performed by a UE comprises: receiving, from a network node, a CSI report configuration which provides a number N of reference signal resources for channel measurement; performing measurements on said N RS resources; calculating or determining one or more CSI quantities for a number M of selected RS resources; and transmitting, to the network node, a CSI report including the calculated or determined CSI quantities, wherein the CSI report comprises two parts—part 1 and part 2—, and wherein the content contained in part 1 indicates the size of part 2. There is also disclosed a UE, a method performed in a network node and a network node.Type: ApplicationFiled: June 14, 2021Publication date: August 3, 2023Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Marcus Grossmann, Markus Landmann, Sutharshun Varatharaajan
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Publication number: 20230209567Abstract: The embodiments relate to methods and apparatuses for enabling transmission of at least one PUSCH. A method comprises: configuring a UE to receive a single PDCCH or a higher layer grant that schedules at least one PUSCH transmission occasion. If one PUSCH transmission occasion is scheduled: scheduling the UE to transmit at least two segments of the PUSCH, each segment is associated with a transmission setting comprising a set of transmission parameters, at least one transmission parameter associated with one of the segments is different from the corresponding transmission parameter associated with at least one other segment. If more than one PUSCH transmission occasion is scheduled, each PUSCH transmission occasion is associated with a transmission setting, wherein at least one transmission parameter associated with one of the PUSCH transmission occasions is different from the corresponding transmission parameter associated with one other PUSCH transmission occasion.Type: ApplicationFiled: March 11, 2021Publication date: June 29, 2023Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Marcus Grossmann, Markus Landmann, Sutharshun Varatharaajan
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Publication number: 20230208494Abstract: A communication device for providing a channel state information, CSI, feedback in a wireless communication system includes a transceiver to receive, from a transmitter a radio signal via a time-variant, frequency-selective MIMO channel, the radio signal including downlink reference signals according to a reference signal configuration including a number of antenna ports, and downlink signals including the reference signal configuration; and a processor. The processor estimates an explicit CSI in the frequency domain using measurements on the downlink reference signals on the radio channel, selects a Doppler-delay precoder matrix (W) for a composite Doppler-delay-beam three-stage precoder, calculates either one or more of a channel quality indicator, CQI, and/or a precoder matrix indicator, PMI, and/or a rank indicator, RI, and reports to the transmitter the CSI feedback including either one or more of the CQI, and/or the PMI and/or the RI.Type: ApplicationFiled: February 21, 2023Publication date: June 29, 2023Inventors: Marcus GROßMANN, Venkatesh RAMIREDDY, Markus LANDMANN, Sutharshun VARATHARAAJAN
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Publication number: 20230125672Abstract: Methods and apparatuses for enhancing the reliability and performance of the PDCCH in a wireless network. The method performed by a UE comprises: receiving a configuration of search space sets for the PDCCH, each search space set comprises a number of PDCCH candidates made up of a number of resource elements; monitoring for DCIs of a specific format as indicated in the configured PDCCH candidates; wherein a configuration or an indication of an association of the search space sets with a search space set pool is provided to the UE, and at least two PDCCH candidates from the search space sets are associated with the same DCI content, or an association of two or more TCI states with a single CORESET is obtained from the network node; and applying the configuration(s) or indication of the association for receiving one or more PDCCH(s) on the search space sets.Type: ApplicationFiled: May 4, 2021Publication date: April 27, 2023Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Marcus Grossmann, Markus Landmann, Sutharshun Varatharaajan
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Patent number: 11616551Abstract: A communication device for providing a channel state information, CSI, feedback in a wireless communication system includes a transceiver to receive, from a transmitter a radio signal via a time-variant, frequency-selective MIMO channel, the radio signal including downlink reference signals according to a reference signal configuration including a number of antenna ports, and downlink signals including the reference signal configuration; and a processor. The processor estimates an explicit CSI in the frequency domain using measurements on the downlink reference signals on the radio channel, selects a Doppler-delay precoder matrix (W) for a composite Doppler-delay-beam three-stage precoder, calculates either one or more of a channel quality indicator, CQI, and/or a precoder matrix indicator, PMI, and/or a rank indicator, RI, and reports to the transmitter the CSI feedback including either one or more of the CQI, and/or the PMI and/or the RI.Type: GrantFiled: November 16, 2020Date of Patent: March 28, 2023Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Marcus Großmann, Venkatesh Ramireddy, Markus Landmann, Sutharshun Varatharaajan
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Publication number: 20230092635Abstract: The embodiments herein relate to a method performed by a network node and a network node. The method comprises setting a higher-layer parameter usage in at least one sounding reference signal, SRS, resource set configuration to nonCodebook or Codebook, wherein each configured SRS resource set comprises one or more SRS resources, and scheduling a physical uplink shared channel (PUSCH) transmission via a downlink control information (DCI) wherein at least two SRS resources are indicated via a sounding reference signal resource indicator (SRI) field of the DCI, wherein each SRS resource is associated with a different SRS resource set; and receiving from the user equipment a physical uplink shared channel that is transmitted using the ports associated with the indicated SRS resources.Type: ApplicationFiled: November 22, 2022Publication date: March 23, 2023Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Sutharshun Varatharaajan, Marcus Grossmann, Markus Landmann
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Publication number: 20230067031Abstract: Methods and and apparatuses for PUSCH beamforming and pathloss reference indication in a wireless communications network. A method performed by a UE comprises: receiving from a network node, a PDCCH transmission on a control resource set or a signaling via a higher layer, a higher layer grant, that schedules one or more PUSCH transmission occasions, and r eceiving, from a network node, via a higher layer, one or more IEs, SRI-PUSCH-PowerControl IEs, which provide power control settings for the transmission of at least one PUSCH, wherein each SRI-PUSCH-PowerControl IE indicates or maps to at least one pathloss reference RS; obtaining a first pathloss reference RS for a first PUSCH transmission scheduled by said PDCCH or higher layer signaling from a first SRI-PUSCH-PowerControl IE; and obtaining a second pathloss reference RS for a second PUSCH transmission scheduled by said PDCCH or higher layer signaling from a second SRI-PUSCH-PowerControl IE.Type: ApplicationFiled: February 4, 2021Publication date: March 2, 2023Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Marcus Grossmann, Markus Landmann, Sutharshun Varatharaajan
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Patent number: 11539407Abstract: The embodiments herein relate to a method performed by a network node and a network node. The method comprises setting a higher-layer parameter usage in at least one sounding reference signal, SRS, resource set configuration to nonCodebook or Codebook, wherein each configured SRS resource set comprises one or more SRS resources, and scheduling a physical uplink shared channel (PUSCH) transmission via a downlink control information (DCI) wherein at least two SRS resources are indicated via a sounding reference signal resource indicator (SRI) field of the DCI, wherein each SRS resource is associated with a different SRS resource set; and receiving from the user equipment a physical uplink shared channel that is transmitted using the ports associated with the indicated SRS resources.Type: GrantFiled: February 14, 2020Date of Patent: December 27, 2022Inventors: Sutharshun Varatharaajan, Marcus Grossmann, Markus Landmann
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Publication number: 20220271890Abstract: The present disclosure relates to methods and apparatuses suitable for an uplink beamforming framework for advanced radio technologies such as 5G. The method performed by a user equipment (UE) comprises: receiving, from a network node, via a higher layer, a configuration of an Information element (IE) comprising a set of parameters used for the configuration of an UL beam direction or a spatial filter to be used in a UL transmission; wherein the IE contains at least: an ID unique to each IE and an ID of an UL reference signal, RS resource or a DL RS resource; and applying the UL beam direction or spatial filter IE for the transmission of one or more of the PUSCH, PUCCH resource(s) and/or Sounding Reference Signal, SRS resource(s).Type: ApplicationFiled: August 15, 2019Publication date: August 25, 2022Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Marcus Grossmann, Sutharshun Varatharaajan
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Publication number: 20220123799Abstract: The embodiments herein relate to a method performed by a network node and a network node. The method comprises setting a higher-layer parameter usage in at least one sounding reference signal, SRS, resource set configuration to nonCodebook or Codebook, wherein each configured SRS resource set comprises one or more SRS resources, and scheduling a physical uplink shared channel (PUSCH) transmission via a downlink control information (DCI) wherein at least two SRS resources are indicated via a sounding reference signal resource indicator (SRI) field of the DCI, wherein each SRS resource is associated with a different SRS resource set; and receiving from the user equipment a physical uplink shared channel that is transmitted using the ports associated with the indicated SRS resources.Type: ApplicationFiled: February 14, 2020Publication date: April 21, 2022Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Sutharshun Varatharaajan, Marcus Grossmann, Markus Landmann
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Publication number: 20210384955Abstract: The embodiments herein relate to method performed by a radio base station, a radio base station, a method performed by a UE and a UE for providing antenna port-related information to the radio base station in a communications network. The method performed by the UE comprises: receiving at least one DownLink (DL) beam from the radio base station; and reporting at least one Sounding Reference Signal (SRS) resource identification information for said at least one received DL beam, wherein the SRS resource identification information is associated with at least one antenna port of the UE receiving the corresponding DL beam.Type: ApplicationFiled: October 7, 2019Publication date: December 9, 2021Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.VInventors: Sutharshun Varatharaajan, Marcus Grossmann
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Patent number: 11108444Abstract: A transmitter includes a 3-dimensional antenna array including a plurality of antenna elements, each antenna element having a radiation pattern, wherein the radiation patterns mutually overlap. The plurality of antenna elements is adapted for coherent wireless communication in a wireless communication system. The 3D-antenna array includes first and second and third antenna elements spanning a 2-dimensional antenna plane, and includes a fourth antenna element arranged outside the 2-dimensional antenna plane; or the 3D-antenna array includes a first antenna element configured to direct a transmitted signal into a first direction, and a second antenna element configured to direct a transmitted signal into a second direction and not into the first direction. The transmitter further includes a precoder connected through the 3D-antenna array, to form one or more transmit beams and/or receive beams with the 3D-antenna array.Type: GrantFiled: December 12, 2019Date of Patent: August 31, 2021Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Sutharshun Varatharaajan, Marcus Grossmann, Markus Landmann, Lars Thiele, Martin Kurras, Thomas Haustein, Thomas Wirth, Leszek Raschkowski