Patents by Inventor Robert Lind Olesen

Robert Lind Olesen 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).

  • Publication number: 20120140845
    Abstract: A method and apparatus for combining space-frequency block coding (SFBC) and frequency shift transmit diversity (FSTD) in a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system.
    Type: Application
    Filed: February 9, 2012
    Publication date: June 7, 2012
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Jaeyoung Kwak, Chang-Soo Koo, Robert Lind Olesen, Aykut Bultan, Fatih Ozluturk
  • Patent number: 8130855
    Abstract: A method and apparatus for combining space-frequency block coding (SFBC), spatial multiplexing (SM) and beamforming in a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system. The system includes a transmitter with a plurality of transmit antennas and a receiver with a plurality of receive antennas. The transmitter generates at least one data stream and a plurality of spatial streams. The number of generated spatial streams is based on the number of the transmit antennas and the number of the receive antennas. The transmitter determines a transmission scheme in accordance with at least one of SFBC, SM and beam forming. The transmitter transmits data in the data stream to the receiver based on the selected transmission scheme.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: March 6, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Jaeyoung Kwak, Chang-Soo Koo, Robert Lind Olesen, Aykut Bultan, Fatih Ozluturk
  • Patent number: 8074137
    Abstract: A method and system for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI) are disclosed. A transmitter and a receiver include a plurality of H-ARQ processes to transmit and receive multiple transport blocks (TBs) simultaneously per TTI. The transmitter generates a plurality of TBs and assigns the TBs to multiple H-ARQ processes. The transmitter sends control information for the TBs and H-ARQ processes associated with the TBs to the receiver. The transmitter then sends the TBs using multiple H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver sends feedback to each of the TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The control information and the feedback may be sent via a layer 1 or layer 2/3 control part.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: December 6, 2011
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen E. Terry, Robert Lind Olesen, Jin Wang, Arty Chandra
  • Patent number: 8019036
    Abstract: In an orthogonal frequency division multiplexed (OFDM) multiple-in multiple-out (MIMO) wireless communication system, a method for correcting sampler clock frequency offset in a receiver comprises acquiring the frequency offset and symbol timing in a received signal by the receiver. The estimated value of a fractional offset is computed, and a correction in the frequency domain based upon the estimated value of the fractional offset is performed.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: September 13, 2011
    Assignee: InterDigital Technology Corporation
    Inventors: Peter J. Voltz, Robert Lind Olesen, I-Tai Lu, Chang-Soo Koo, Qingyuan Dai, Yongwen E. Yang, Hui-Yuan Teng
  • Publication number: 20110211474
    Abstract: A method and apparatus for calibration and channel state feedback to support transmit beamforming in a multiple-input multiple-output (MIMO) system are disclosed. For radio frequency (RF) calibration, a first station (STA) sends a calibration request to a second STA, and the second STA sends a sounding packet to the first STA. The first STA receives the sounding packet, performs at least one channel measurement and performs calibration based on the channel measurement. For channel state feedback, the first STA sends a channel state feedback request to the second STA. The second STA sends a sounding packet to the first STA. The first STA receives the sounding packet and performs at least one channel measurement with the sounding packet. The first STA then calculates a steering matrix for transmit beamforming based on the channel measurement.
    Type: Application
    Filed: March 25, 2011
    Publication date: September 1, 2011
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Chang-Soo Koo, Arty Chandra, Peter J. Voltz, Chia-Pang Yen, Jin Wang, Robert Lind Olesen
  • Publication number: 20110122958
    Abstract: A method is disclosed for tuning a beamformed signal in wireless communications including a plurality of sub-carriers and a plurality of eigenbeams. The method includes adjusting a total gain of each of the plurality of sub-carriers and eigenbeams, and applying the adjusted total gain to each of the sub-carriers and each of the eigenbeams.
    Type: Application
    Filed: January 31, 2011
    Publication date: May 26, 2011
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Chang-Soo Koo, Nirav Shah, Robert Lind Olesen
  • Publication number: 20110096857
    Abstract: A method and apparatus for optimizing the system capacity of an Orthogonal Frequency Division Multiplexing (OFDM) system that uses with Multiple-Input Multiple-Output (MIMO) antennas. In a receiver, a target quality of service (QoS) metric and reference data rate are set. The target QoS metric may be set to a predetermined value and/or may be adjusted dynamically with respect to packet error rate (PER) by a slow outer-loop control processor. The QoS of received signals are compared to the target QoS. Depending on the comparison, the receiver generates a channel quality indicator (CQI) which is sent to the transmitter. The CQI is a one or two bit indicator which indicates to the transmitter to disable, adjust or maintain data transmission rates of particular sub-carriers, groups of sub-carriers per transmit antenna, or groups of sub-carriers across all transmit antennas. At the transmitter, the transmitted data rate is disabled, adjusted or maintained.
    Type: Application
    Filed: January 3, 2011
    Publication date: April 28, 2011
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Chang-Soo Koo, Robert Lind Olesen
  • Patent number: 7929409
    Abstract: A method and apparatus for protecting and authenticating wirelessly transmitted digital information using numerous techniques. The apparatus may be a wireless orthogonal frequency division multiplexing (OFDM) communication system, a base station, a wireless transmit/receive unit (WTRU), a transmitter, a receiver and/or an integrated circuit (IC). The wireless OFDM communication system includes a transmitter which steganographically embeds digital information in an OFDM communication signal and wirelessly transmits the OFDM communication signal. The system further includes a receiver which receives the OFDM communication signal and extracts the steganographically embedded digital information from the received OFDM communication signal.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: April 19, 2011
    Assignee: InterDigital Technology Corporation
    Inventors: Prabhakar R. Chitrapu, John David Kaewell, Jr., Robert Lind Olesen, Sung-Hyuk Shin, John Erich Hoffmann, Richard Dan Herschaft
  • Patent number: 7920533
    Abstract: A method and apparatus for calibration and channel state feedback to support transmit beamforming in a multiple-input multiple-output (MIMO) system are disclosed. For radio frequency (RF) calibration, a first station (STA) sends a calibration request to a second STA, and the second STA sends a sounding packet to the first STA. The first STA receives the sounding packet, performs at least one channel measurement and performs calibration based on the channel measurement. For channel state feedback, the first STA sends a channel state feedback request to the second STA. The second STA sends a sounding packet to the first STA. The first STA receives the sounding packet and performs at least one channel measurement with the sounding packet. The first STA then calculates a steering matrix for transmit beamforming based on the channel measurement.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: April 5, 2011
    Assignee: InterDigital Technology Corporation
    Inventors: Chang-Soo Koo, Jin Wang, Robert Lind Olesen, Arty Chandra, Peter J. Voltz, Chia-Pang Yen
  • Patent number: 7881247
    Abstract: A multiple-input multiple-output (MIMO) scheme uses precoding and feedback in a wireless communication system including a transmitter and a receiver. The system may use either a single codeword (SCW) or a double codeword (DCW). The precoding scheme is based on transmit beamforming (TxBF). Combined differential and non-differential feedback with periodic resetting is considered.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: February 1, 2011
    Assignee: InterDigital Technology Corporation
    Inventors: Kyle Jung-Lin Pan, Robert Lind Olesen, Donald M. Grieco
  • Patent number: 7881265
    Abstract: In a wireless communication system including a plurality of sub-carriers and a plurality of eigenbeams, a method for tuning a beamformed signal. The method includes adjusting a total gain of each of the plurality of sub-carriers and eigenbeams, and applying the adjusted total gain to each of the sub-carriers and each of the eigenbeams.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: February 1, 2011
    Assignee: InterDigital Technology Corporation
    Inventors: Chang-Soo Koo, Nirav Shah, Robert Lind Olesen
  • Patent number: 7869536
    Abstract: A multiple-input multiple-output (MIMO) receiver includes a MIMO decoder, a pre-scaling unit, a demapper, and a post-scaling unit. The MIMO decoder performs a MIMO decoding on received signals to decouple a plurality of symbols transmitted via a plurality of data streams. Both pre-demapping scaling and post-demapping scaling are performed to improve the performance of the receiver. A pre-scaling coefficient is applied to the symbols by the pre-scaling unit to generate pre-scaled symbols. The pre-scaled symbols are converted to soft bits by the demapper. The post-scaling unit then applies a post-scaling coefficient to the soft bits. The post-scaling coefficient is a signal-to-interference and noise ratio (SINR). Cross interference is taken into account in post-demapping scaling to obtain more accurate soft bits for subsequent decoding. The present invention is applicable to both a multi-carrier system, (such as orthogonal frequency division multiplexing (OFDM)), and a single carrier system.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: January 11, 2011
    Assignee: InterDigital Technology Corporation
    Inventors: Yingxue Li, Robert Lind Olesen
  • Patent number: 7864659
    Abstract: A method and apparatus for optimizing the system capacity of an Orthogonal Frequency Division Multiplexing (OFDM) system that uses with Multiple-Input Multiple-Output (MIMO) antennas. In a receiver, a target quality of service (QoS) metric and reference data rate are set. The target QoS metric may be set to a predetermined value and/or may be adjusted dynamically with respect to packet error rate (PER) by a slow outer-loop control processor. The QoS of received signals are measured and compared to the target QoS. Depending on the comparison, the receiver generates a channel quality indicator (CQI) which is sent back to the transmitting transmitter. The CQI is a one or two bit indicator which indicates to the transmitter to disable, adjust or maintain data transmission rates of particular sub-carriers, groups of sub-carriers per transmit antenna, or groups of sub-carriers across all transmit antennas. At the transmitter, the transmitted data rate is disabled, adjusted or maintained.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: January 4, 2011
    Assignee: InterDigital Technology Corporation
    Inventors: Chang-Soo Koo, Robert Lind Olesen
  • Publication number: 20100246377
    Abstract: A multiple-input multiple-output (MIMO) beamforming-based single carrier frequency division multiple access (SC-FDMA) system is disclosed. At the transmitter, a fast Fourier transform (FFT) is performed on transmission data to generate frequency domain data. The frequency domain transmit data is mapped to assigned subcarriers. An inverse fast Fourier transform (IFFT) is performed on the transmit data mapped to the assigned subcarriers to generate time domain transmit data. The time domain transmit data is transmitted via antennas. At a receiver, an FFT is performed on the received data to generate frequency domain received data. Subcarrier demapping is performed to extract data mapped on the assigned subcarriers. A channel estimator generates a channel matrix which is decomposed into U, D and VH matrices. A channel distortion and interference between transmit and receive antennas are equalized based on the decomposed channel matrices to the extracted frequency domain received data.
    Type: Application
    Filed: September 25, 2006
    Publication date: September 30, 2010
    Applicant: Interdigital Technology Corporation
    Inventors: Guodong Zhang, Jung-Lin Pan, Robert Lind Olesen, Yingming Tsai
  • Patent number: 7742550
    Abstract: A wireless communication apparatus which uses fast Fourier transforms (FFTs) in an orthogonal frequency division multiplexing (OFDM) receiver which incorporates a beam space antenna array. The beam space antenna array may be implemented with a Butler matrix array. The beam space antenna array may be a circular array, vertical array, or a combination of both circular and vertical arrays, for providing the desired angular antenna coverage. In one embodiment, the antenna array is optimized because the FFTs are linear invariant transform operators, whereby the order of operations in the OFDM receiver can be interchanged.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: June 22, 2010
    Assignee: InterDigital Technology Corporation
    Inventors: Robert Lind Olesen, Alexander Reznik, Philip J. Pietraski, Rui Yang
  • Publication number: 20100014617
    Abstract: A method and apparatus for decomposing a channel matrix in a wireless communication system are disclosed. A channel matrix H is generated for channels between transmit antennas and receive antennas. A Hermitian matrix A=HHH or A=HHH is created. A Jacobi process is cyclically performed on the matrix A to obtain Q and DA matrixes such that A=QDAQH. DA is a diagonal matrix obtained by singular value decomposition (SVD) on the A matrix. In each Jacobi transformation, real part diagonalization is performed to annihilate real parts of off-diagonal elements of the matrix and imaginary part diagonalization is performed to annihilate imaginary parts of off-diagonal elements of the matrix after the real part diagonalization. U, V and DH matrixes of H matrix are then calculated from the Q and DA matrices. DH is a diagonal matrix comprising singular values of the H matrix.
    Type: Application
    Filed: September 24, 2009
    Publication date: January 21, 2010
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Chang-Soo Koo, Robert Lind Olesen
  • Patent number: 7643843
    Abstract: The present invention is related to a method and system for transmit power control in a multiple-input multiple-output (MIMO) wireless communication system. Both a transmitter and a receiver comprise multiple antennae for transmission and reception. The transmitter comprises a power allocation unit for controlling transmit power based on a feedback received from the receiver. The receiver comprises a channel estimator and a singular value decomposition (SVD) unit. The channel estimator generates a channel matrix from a signal received from the transmitter and the SVD unit decomposes the channel matrix into D, U and V matrices. The receiver sends a feedback generated based on output from the SVD unit to the transmitter for controlling the transmit power. The feedback may be one of an eigenvalue, a transmit power level or a power control bit or command. A hybrid scheme for selecting one of them based on channel condition may be implemented.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: January 5, 2010
    Assignee: InterDigital Technology Corporation
    Inventors: Jung-Lin Pan, Robert Lind Olesen, Yingming Tsai
  • Publication number: 20090316307
    Abstract: Apparatus and method that employ a technique which improves SINR in a communication system utilizing MIMO antennas are described. Transmitter and receiver components use fixed transmit and receive beamforming matrices and variable transmit and receive beamforming vectors. A method of channel conditioning using an iterative closed loop process is also described.
    Type: Application
    Filed: August 14, 2009
    Publication date: December 24, 2009
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Robert-Lind Olesen, Jaeyoung Kwak, Aykut Bultan
  • Patent number: 7630732
    Abstract: The present invention is related to a method and apparatus for generating feedback information for transmit power control in a multiple-input multiple-output (MIMO) wireless communication system. Both a transmitter and a receiver comprise multiple antennae for transmission and reception. The transmitter comprises a power allocation unit for controlling transmit power based on a feedback received from the receiver. The receiver comprises a channel estimator and a singular value decomposition (SVD) unit. The channel estimator generates a channel matrix from a signal received from the transmitter and the SVD unit decomposes the channel matrix into D, U and V matrices. The receiver sends a feedback generated based on output from the SVD unit to the transmitter. The feedback may be one of an eigenvalue, a transmit power level or a power control bit or command. A hybrid scheme for selecting one of them based on channel condition may be implemented.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: December 8, 2009
    Assignee: InterDigital Technology Corporation
    Inventors: Jung-Lin Pan, Robert Lind Olesen, Yingming Tsai
  • Patent number: 7602855
    Abstract: A method and apparatus for decomposing a channel matrix in a wireless communication system are disclosed. A channel matrix H is generated for channels between transmit antennas and receive antennas. A Hermitian matrix A=HHH or A=HHH is created. A Jacobi process is cyclically performed on the matrix A to obtain Q and DA matrixes such that A=QDAQH. DA is a diagonal matrix obtained by singular value decomposition (SVD) on the A matrix. In each Jacobi transformation, real part diagonalization is performed to annihilate real parts of off-diagonal elements of the matrix and imaginary part diagonalization is performed to annihilate imaginary parts of off-diagonal elements of the matrix after the real part diagonalization. U, V and DH matrixes of H matrix are then calculated from the Q and DA matrices. DH is a diagonal matrix comprising singular values of the H matrix.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: October 13, 2009
    Assignee: InterDigital Technology Corporation
    Inventors: Chang-Soo Koo, Robert Lind Olesen