Patents by Inventor Martin Haardt
Martin Haardt 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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Patent number: 9363815Abstract: The present invention provides a method for scheduling a SDMA user group in an MU MIMO system and a base station. The method comprise the following steps: calculating, according to channel state information, a projection matrix of a channel matrix of each user in a user group on a joint channel matrix of other users in the same user group, where the user group is selected from a plurality of users; calculating a capacity metric of the user group according to the projection matrixes; and selecting an optimal user group according to the metrics of a plurality of user groups. The present invention effectively eliminates the MUI on terminal users at the transmitter side, and reduces the computational complexity.Type: GrantFiled: March 6, 2014Date of Patent: June 7, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Mingjie Dong, Yao Cheng, Sheng Li, Florian Roemer, Jianshu Zhang, Martin Haardt
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Publication number: 20140185564Abstract: The present invention provides a method for scheduling a SDMA user group in an MU MIMO system and a base station. The method comprise the following steps: calculating, according to channel state information, a projection matrix of a channel matrix of each user in a user group on a joint channel matrix of other users in the same user group, where the user group is selected from a plurality of users; calculating a capacity metric of the user group according to the projection matrixes; and selecting an optimal user group according to the metrics of a plurality of user groups. The present invention effectively eliminates the MUI on terminal users at the transmitter side, and reduces the computational complexity.Type: ApplicationFiled: March 6, 2014Publication date: July 3, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Mingjie Dong, Yao Cheng, Sheng Li, Florian Roemer, Jianshu Zhang, Martin Haardt
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Publication number: 20140185700Abstract: The present invention relates to the field of communications technologies and discloses a method and an apparatus for linear precoding in a multi-user multiple-input multiple-output system, which can reduce computational complexity, improve system efficiency, and enhance system robustness by using a linear precoding technology in the case of imperfect CSI. According to the solutions provided in embodiments of the present invention, a first matrix is determined according to channel information of the system; an equivalent-channel matrix is acquired according to the first matrix; the equivalent-channel matrix is decomposed, and a second matrix is obtained through computation; a precoding matrix is obtained according to the first matrix and the second matrix, so that a power balance is achieved between spatial streams of each user after two signals to be concurrently transmitted are processed by using the precoding matrix.Type: ApplicationFiled: March 6, 2014Publication date: July 3, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Mingjie Dong, Yao Cheng, Sheng Li, Florian Roemer, Jianshu Zhang, Martin Haardt
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Patent number: 8498193Abstract: This invention comprises a method of little complexity for selection of an optimized number of subscribers for transmission in wire-free message transmission systems having a plurality of antennas at the base station and having one or more antennas at the receivers, as well as space-division multiple access (SDMA) in conjunction with multiple access in the time domain or frequency domain. Subscribers with channels with little spatial correlation are selected for operation in the same time slot or frequency slot, in order to increase the throughput of the SDMA transmission method, with the relationship between the group size and the mean transmission power being taken into account. The invention interacts both with SDMA methods which do not allow any interference (Zero Forcing) and with methods with residual interference.Type: GrantFiled: September 22, 2006Date of Patent: July 30, 2013Inventors: Martin Haardt, Martin Fuchs-Lautensack, Giovanni Del Galdo
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Publication number: 20100054113Abstract: This invention comprises a method of little complexity for selection of an optimized number of subscribers for transmission in wire-free message transmission systems having a plurality of antennas at the base station and having one or more antennas at the receivers, as well as space-division multiple access (SDMA) in conjunction with multiple access in the time domain or frequency domain. Subscribers with channels with little spatial correlation art selected for operation in the same time slot or frequency slot. In order to increase the throughput of the SDMA transmission method, with the relationship between the group size and the mean transmission power being taken into account. The invention interacts both with SDMA methods which do not allow any interference (Zero Forcing) and with methods with residual interference.Type: ApplicationFiled: September 22, 2006Publication date: March 4, 2010Applicant: TECHNISCHE UNIVERSITÄT ILMENAUInventors: Martin Haardt, Martin Fuchs, Giovanni Del Galdo
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Patent number: 7555266Abstract: Data is transmitted in a radio communication system having two or more base stations that are located in the network and having additional radio stations, which are each connected to one of the base stations via radio interfaces. At least one first base station has an antenna array with a multitude of antenna elements and with a signal processing device for the directional transmitting-receiving of data. The first base station temporally overlays data to a radio station, which is connected to the base station, for the transmission of data from an external base station to an external radio station connected thereto. The transmission of data from the first base station is also received from the external radio station. The objective is to reduce the amount of disturbance to the external radio station caused by transmissions from the base station in the downlink direction.Type: GrantFiled: May 22, 2001Date of Patent: June 30, 2009Assignee: Nokia Siemens Networks GmbH & Co. KGInventors: Martin Haardt, Christoph Mecklenbraeuker
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Publication number: 20090060900Abstract: Drug screening assays useful in the discovery of pharmaceutically active compounds for use in the treatment of diseases involving abnormal lipid metabolism including diabetic neuropathy are taught. In particular, the control region of delta-5-desaturase gene is taught as a target for the drug screening methods, which serve to identify nucleotides, proteins, compounds and/or other pharmacological agents, which modulate the activity of desaturase enzymes or regulate the level of expression of the desaturase genes. Cell-based and cell lysate assays are taught for detecting components that interact with the desaturase enzymes and modify fatty acid profiles. In addition, cell-based and cell lysate assays are used to identify functional and regulatory elements controlling expression of the desaturase genes as well as to screen for components that modulate the transcriptional activity of the desaturase genes. Also taught is the gene for rat delta-5-desaturase.Type: ApplicationFiled: June 11, 2007Publication date: March 5, 2009Applicant: Xenon Genetics Inc.Inventors: Michael David Winther, Leah Christine Knickle, Martin Haardt, Stephen John Allen, Andre Ponton, Roberto Justo De Antueno, D. Kenneth Jenkins, Solomon O. Nwaka
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Patent number: 7486750Abstract: A system and device for wireless data transmission where information about interference in a message transmission system is obtained in a receiver.Type: GrantFiled: January 3, 2000Date of Patent: February 3, 2009Assignee: Siemens AktiengesellschaftInventors: Paul Walter Baier, Martin Weckerle, Martin Haardt
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Publication number: 20080220500Abstract: The present invention relates to elongase genes, their polypeptides and their control regions, and the use of such genes, polypeptides and control regions in determining compositions for use in the treatment of disease. The identified compositions regulate the expression of the elongase genes or modulate the activity of their protein products. The nucleotide and amino acid sequences are taught for ELG4, ELG6 and ELG7. The control sequences and function are taught for ELG1, ELG2, ELG3, ELG4, ELG5, ELG6 and ELG7.Type: ApplicationFiled: August 20, 2007Publication date: September 11, 2008Inventors: Michael David Winther, Leah Christine Knickle, Martin Haardt, Stephen John Allen, Andre Ponton, Roberto Justo De Antueno, D. Kenneth Jenkins, Solomon O. Nwaka, Y. Paul Goldberg
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Patent number: 7297523Abstract: The present invention relates to elongase genes, their polypeptides and their control regions, and the use of such genes, polypeptides and control regions in determining compositions for use in the treatment of disease. The identified compositions regulate the expression of the elongase genes or modulate the activity of their protein products. The nucleotide and amino acid sequences are taught for ELG4, ELG6 and ELG7. The control sequences and function are taught for ELG1, ELG2, ELG3, ELG4, ELG5, ELG6 and ELG7.Type: GrantFiled: November 29, 2001Date of Patent: November 20, 2007Assignee: Xenon Pharmaceuticals Inc.Inventors: Michael David Winther, Leah Christine Knickle, Martin Haardt, Stephen John Allen, Andre Ponton, Roberto Justo De Antueno, D. Kenneth Jenkins, Solomon O. Nwaka, Y. Paul Goldberg
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Patent number: 7256028Abstract: Drug screening assays useful in the discovery of pharmaceutically active compounds for use in the treatment of diseases involving abnormal lipid metabolism including diabetic neuropathy are taught. In particular, the control region of delta-5-desaturase gene is taught as a target for the drug screening methods, which serve to identify nucleotides, proteins, compounds and/or other pharmacological agents, which modulate the activity of desaturase enzymes or regulate the level of expression of the desaturase genes. Cell-based and cell lysate assays are taught for detecting components that interact with the desaturase enzymes and modify fatty acid profiles. In addition, cell-based and cell lysate assays are used to identify functional and regulatory elements controlling expression of the desaturase genes as well as to screen for components that modulate the transcriptional activity of the desaturase genes. Also taught is the gene for rat delta-5-desaturase.Type: GrantFiled: October 26, 2001Date of Patent: August 14, 2007Assignee: Xenon Genetics Inc.Inventors: Michael David Winther, Leah Christine Knickle, Martin Haardt, Stephen John Allen, Andre Ponton, Roberto Justo De Antueno, D. Kenneth Jenkins, Solomon O. Nwaka
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Patent number: 7158793Abstract: A method for shaping beams in a radio communication system employs current weighting vectors determined from first weighting vectors. The first weighting vectors used for the beam shaping are chosen to be orthogonal to each other.Type: GrantFiled: October 12, 2001Date of Patent: January 2, 2007Assignee: Siemens AktiengesellschaftInventor: Martin Haardt
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Patent number: 7096041Abstract: In a radio communication system, a beam is formed between subscriber stations and a base station which has an antenna device with several antenna elements. The antenna elements emit a downlink signal based on respective weighing with coefficients of a weighting vector. A plurality of weighting vectors are determined at the subscriber station in an initialization phase and transmitted to the base station. In a subsequent working phase, the subscriber station selects a dominant weighting vector from the weighting vectors and transmits a designation of the selected weighting vector to the base station.Type: GrantFiled: May 17, 2001Date of Patent: August 22, 2006Assignee: Siemens AktiengesellschaftInventors: Christopher Brunner, Martin Haardt, Joachim Hammerschmidt, Alexander Seeger
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Publication number: 20040146872Abstract: The present invention relates to methods for identifying genes regulated by fat and their subsequent use in determining compositions for use in the treatment of disease, by utilizing the identified genes and their proteins. The identified compositions regulate the expression of the fat regulated genes or modulate the activity of their protein products. The nucleotide and amino acid sequences for METP, a novel mitochondrial carrier protein and FTF1, a fat responsive transcription factor, are taught. The nucleotide sequence for A1BG, a plasma glycoprotein is taught. The nucleotide and amino add sequences for human GPAT and rat GLOL are taught. Control sequences for human METP, GLOL, FTF1, SCD, GPAT and A1BG are taught.Type: ApplicationFiled: November 28, 2003Publication date: July 29, 2004Inventors: Michael David Winther, Leah Christine Knickle, Martin Haardt, Stephen John Allen, Andre Ponton, Roberto Justo De Antueno, D. Kenneth Jenkins, Solomon O. Nwaka, Y. Paul Goldberg
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Publication number: 20040110537Abstract: The invention relates to a method for improving a channel estimate of a radio signal which is transmitted in a radiocommunications system that operates with an adaptive antenna comprising a plurality M of antenna elements. Said method comprises the following steps: forming a spatial covariance matrix using a starting channel estimate, this starting channel estimate being in the form of a vector in an M-dimensional vector space; determining a number Ln of eigenvectors of the spatial covariance matrix which is smaller than the plurality M of the antenna elements; calculating a projection of the starting channel estimate onto the sub-space spanned by the Ln eigenvectors; replacing the starting channel estimate with the projection.Type: ApplicationFiled: April 16, 2003Publication date: June 10, 2004Inventor: Martin Haardt
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Publication number: 20040096435Abstract: Drug screening assays useful in the discovery of pharmaceutically active compounds for use in the treatment of diseases involving abnormal lipid metabolism including diabetic neuropathy are taught. In particular, the control region of delta-5-desaturase gene is taught as a target for the drug screening methods, which serve to identify nucleotides, proteins, compounds and/or other pharmacological agents, which modulate the activity of desaturase enzymes or regulate the level of expression of the desaturase genes. Cell-based and cell lysate assays are taught for detecting components that interact with the desaturase enzymes and modify fatty acid profiles. In addition, cell-based and cell lysate assays are used to identify functional and regulatory elements controlling expression of the desaturase genes as well as to screen for components that modulate the transcriptional activity of the desaturase genes. Also taught is the gene for rat delta-5-desaturase.Type: ApplicationFiled: November 24, 2003Publication date: May 20, 2004Inventors: Michael David Winther, Leah Christine Knickle, Martin Haardt, Stephen John Allen, Andre Ponton, Roberto Justo De Antueno, D Kenneth Jenkins, Solomon O Nwaka
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Publication number: 20040086899Abstract: The present invention relates to elongase genes, their polypeptides and their control regions, and the use of such genes, polypeptides and control regions in determining compositions for use in the treatment of disease. The identified compositions regulate the expression of the elongase genes or modulate the activity of their protein products. The nucleotide and amino acid sequences are taught for ELG4, ELG6 and ELG7. The control sequences and function are taught for ELG1, ELG2, ELG3, ELG4, ELG5, ELG6 and ELG7.Type: ApplicationFiled: November 20, 2003Publication date: May 6, 2004Inventors: Michael David Winther, Leah Christine Knickle, Martin Haardt, Stephen John Allen, Andre Ponton, Roberto Justo De Antueno, D Kenneth Jenkins, Solomon O Nwaka, Y Paul Goldberg
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Publication number: 20040014434Abstract: The invention relates to a method for shaping beams in a radio communication system. The first weighting vectors used for the beam shaping are chosen orthogonal to each other.Type: ApplicationFiled: April 16, 2003Publication date: January 22, 2004Inventor: Martin Haardt
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Publication number: 20030162501Abstract: Data is transmitted in a radio communication system having two or more base stations that are located in the network and having additional radio stations, which are each connected to one of the base stations via radio interfaces. At least one first base station has an antenna array with a multitude of antenna elements and with a signal processing device for the directional transmitting-receiving of data. The first base station temporally overlays data to a radio station, which is connected to the base station, for the transmission of data from an external base station to an external radio station connected thereto. The transmission of data from the first base station is also received from the external radio station. The objective is to reduce the amount of disturbance to the external radio station caused by transmissions from the base station in the downlink direction.Type: ApplicationFiled: November 22, 2002Publication date: August 28, 2003Inventors: Martin Haardt, Christoph Mecklenbraeuker
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Publication number: 20030144032Abstract: In a radio communication system, a beam is formed between subscriber stations and a base station which has an antenna device with several antenna elements. The antenna elements emit a downlink signal based on respective weighing with coefficients of a weighting vector. A plurality of weighting vectors are determined at the subscriber station in an initialization phase and transmitted to the base station. In a subsequent working phase, the subscriber station selects a dominant weighting vector from the weighting vectors and transmits a designation of the selected weighting vector to the base station.Type: ApplicationFiled: April 3, 2003Publication date: July 31, 2003Inventors: Christopher Brunner, Martin Haardt, Joachim Hammerschmidt, Alexander Seeger