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).

  • Patent number: 7583982
    Abstract: A technique which improves SINR in a communication system utilizing MIMO antennas is 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: Grant
    Filed: June 27, 2005
    Date of Patent: September 1, 2009
    Assignee: InterDigital Technology Corporation
    Inventors: Robert Lind Olesen, Jaeyoung Kwak, Aykut Bultan
  • Publication number: 20090129499
    Abstract: The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.
    Type: Application
    Filed: January 27, 2009
    Publication date: May 21, 2009
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Jaeyoung Kwak, Robert Lind Olesen, Aykut Bultan, Eldad Zeira, Chang-Soo Koo, Fatih Ozluturk, Yuejin Huang, Kalpendu R. Pasad
  • Patent number: 7532723
    Abstract: Tokens/keys are produced for wireless communications. These tokens/keys are used for watermarks, signature insertion, encryption and other uses. In one embodiment, contextual information is used to generate tokens/keys. The tokens/keys may be derived directly from the contextual information. The contextual information may be used in conjunction with other information to derive the tokens/keys. Tokens/keys may be exchanged between transmit/receive units. The exchange of these tokens/keys may be encrypted.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: May 12, 2009
    Assignee: InterDigital Technology Corporation
    Inventors: Prabhakar R. Chitrapu, Alain Charles Louis Briancon, Akinlolu Oloruntosi Kumoluyi, Alan Gerald Carlton, Kiran Kumar S. Vanganuru, Richard Dan Herschaft, John Erich Hoffmann, John Thommana, Debashish Purkayastha, Guodong Zhang, Robert Lind Olesen, Alexander Reznik, TieJun Shan, Sung-Hyuk Shin, Amit Singhal
  • Patent number: 7505529
    Abstract: The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: March 17, 2009
    Assignee: InterDigital Technology Corporation
    Inventors: Jaeyoung Kwak, Robert Lind Olesen, Aykut Bultan, Eldad Zeira, Chang-Soo Koo, Fatih Ozluturk, Yuejin Huang, Kalpendu R. Pasad
  • Publication number: 20090058726
    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: Application
    Filed: November 12, 2008
    Publication date: March 5, 2009
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Robert Lind Olesen, Alexander Reznik, Philip J. Pietraski, Rui Yang
  • Publication number: 20080316935
    Abstract: A method and apparatus generates a codebook and associated scheduling and control signaling. A plurality of channel combinations is generated for a plurality of wireless transmit receive units (WTRUs). The channel for each WTRU is quantized based on the WTRU codebook. A codebook for beamforming is generated for a plurality of WTRUs. The codebook includes a plurality of beamforming matrices. All possible beamforming matrices may be computed and the codebook may be quantized.
    Type: Application
    Filed: June 10, 2008
    Publication date: December 25, 2008
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Erdem Bala, Robert Lind Olesen, Kyle Jung-Lin Pan
  • Publication number: 20080305745
    Abstract: A method and apparatus for feedback in a wireless transmit receive unit (WTRU) includes transmitting feedback over an aggregate of predefined control channel elements (CCEs) wherein the feedback is one of a channel quality indicator (CQI), a precoding matrix index (PMI) or a rank index.
    Type: Application
    Filed: June 2, 2008
    Publication date: December 11, 2008
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Guodong Zhang, Robert Lind Olesen
  • Publication number: 20080301536
    Abstract: A method and apparatus for channel coding and rate matching of the Physical Uplink Control Channel (PUCCH) and the Physical Downlink Control Channel (PDCCH) is disclosed that uses convolutional encoding to code the control channels. Rate matching is performed using a circular buffer based rate matching algorithm. A rate matching module may contain a single interleaver or may alternatively comprise a plurality of sub-block interleavers. Interleaved coded bits may be stored in the circular buffer in an interlaced format, or output streams from separate sub-block interleavers may be stored contiguously. When a plurality of sub-block interleavers are used, different interleaving patterns may be used. Rate matching may use bit puncturing or repetition to match the rate of the available physical channel resource. Rate matched output bits may be interleaved using a channel interleaver.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 4, 2008
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Sung-Hyuk Shin, Donald M. Grieco, Nirav B. Shah, Philip J. Pietraski, Robert Lind Olesen
  • Patent number: 7453964
    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: October 25, 2006
    Date of Patent: November 18, 2008
    Assignee: InterDigital Technology Corporation
    Inventors: Robert Lind Olesen, Alexander Reznik, Philip J. Pietraski, Rui Yang
  • Publication number: 20080260054
    Abstract: A method and apparatus for reducing a peak-to-average power ratio (PAPR) in a multiple-input multiple-output (MIMO) wireless communication system are disclosed. Transmit beamforming or precoding is performed on transmit symbols based on a channel matrix. For feedback, channel matrices may be averaged over multiple subcarriers and the averaged channel matrices may be further quantized. In order to reduce the PAPR, amplitude clipping may be performed on the symbols after the transmit processing. The amplitude clipping may be performed by hard clipping, soft clipping, or smooth clipping.
    Type: Application
    Filed: August 16, 2007
    Publication date: October 23, 2008
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Hyung G. Myung, Kyle Jung-Lin Pan, Robert Lind Olesen, Donald M. Grieco
  • Publication number: 20080225822
    Abstract: A method for transmitting feedback information for a wireless transmit receive unit (WTRU) includes multiplexing the feedback information with an uplink shared channel, mapping the multiplexed feedback information to orthogonal frequency division multiplex (OFDM) symbols and transmitting the feedback information to an e Node B. The method also includes multiplexing the feedback information with the uplink shared channel using distributed frequency division multiplexing (FDM), mapping the feedback information to a first OFDM symbol, and distributing the mapped feedback information equidistantly across the transmission bandwidth.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 18, 2008
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Guodong Zhang, Robert Lind Olesen, Allan Yingming Tsai, Donald M. Grieco
  • Publication number: 20080220806
    Abstract: A method and apparatus are disclosed comprising a combined open loop/closed loop uplink power control scheme for E-UTRA. The combined open and closed loop method for UL intra-cell PC controls the wireless transmit receive unit (WTRU) transmit power spectral density (PSD), PSDTx, (e.g. power per RB).
    Type: Application
    Filed: March 7, 2008
    Publication date: September 11, 2008
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Sung-Hyuk Shin, Zinan Lin, Donald M. Grieco, Robert Lind Olesen
  • Patent number: 7415043
    Abstract: A spread spectrum method and apparatus for protecting and authenticating wirelessly transmitted digital information using numerous techniques. The apparatus may be a wireless code division multiple access (CDMA) communication system, a base station, a wireless transmit/receive unit (WTRU), a transmitter, a receiver and/or an integrated circuit (IC). The wireless CDMA communication system includes a transmitter which steganographically embeds digital information in a CDMA communication signal and wirelessly transmits the CDMA communication signal. The system further includes a receiver which receives the CDMA communication signal and extracts the steganographically embedded digital information from the received CDMA communication signal.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: August 19, 2008
    Assignee: InterDigital Technology Corporation
    Inventors: John David Kaewell, Jr., Prabhakar R. Chitrapu, Robert Lind Olesen, Sung-Hyuk Shin, John Erich Hoffmann, Alexander Reznik
  • Publication number: 20080195917
    Abstract: A method and apparatus for soft output decoding of multi-input multi-output (MIMO) channels in order to improve throughput performance is provided. In particular, a low-cost alternative to exhaustive brute-force maximum-likelihood search by using a variant of list decoding that exploits pre-coder linearity to reduce the computational complexity in generating a list of candidate codewords for decoding is disclosed.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 14, 2008
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Chang-Soo Koo, Nirav B. Shah, Robert Lind Olesen
  • Patent number: 7406130
    Abstract: The present invention is related to a method and system for optimization of channel estimation and synchronization in an Orthogonal Frequency Division Multiplexing (OFDM) Multiple-Input Multiple-Output (MIMO) wireless communication system. In accordance with the present invention, all of the training sequences are simply constructed based on a basic code by cyclically shifting the basic code. The training sequences are transmitted from different antennas in parallel without performing inverse fast Fourier transform. As a result, there is no peak-to-average ratio problem. Channel estimation is performed in each receiver based on the samples before fast Fourier transform and the maximum-likelihood estimate of channel response in time domain is then mapped into the frequency domain. The channel estimation is not only very simple in implementation, but also very efficient in computation.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: July 29, 2008
    Assignee: InterDigital Technology Corporation
    Inventors: Yuejin Huang, Robert Lind Olesen, Chang-Soo Koo
  • Publication number: 20080130484
    Abstract: In a communications system with a wireless transmit/receive unit and a cell, a method for transmission of a broadcast channel is presented. The method contains the steps of generating a broadcast signal, processing said broadcast signal according to a modified spatial frequency block coding scheme, and broadcasting the processed signal to a wireless transmit/receive unit.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 5, 2008
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Guodong Zhang, Kyle Jung-Lin Pan, Robert Lind Olesen, Allan Yingming Tsai
  • Patent number: 7340281
    Abstract: A method and system is disclosed for enhancing reception of wireless communication signals. A beam pattern including at least one set of beams is generated. Where the beam pattern includes at least two sets of beams, the beam sets may be offset with respect to each other and alternated to enhance reception. Beams may be selected for data processing based on a signal-to-noise ratio (SNR) and may be maximal-ratio combined where signals from a single WTRU are detected within more than one beam and are used for data processing.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: March 4, 2008
    Assignee: InterDigital Technology Corporation
    Inventors: Eldad Zeira, Donald M. Grieco, Robert Lind Olesen, Ariela Zeira, Jung-Lin Pan, Aykut Bultan
  • Publication number: 20080032746
    Abstract: A method and system for implementing multi-user virtual multiple-input multiple-output (MIMO) techniques for wireless transmit/receive units (WTRUs) having one or more antennas are disclosed. The system includes a base station and at least one WTRU having at least two antennas. The number of antennas of the base station is not less than the number of antennas of any of the WTRUs. The base station generates a channel matrix for the WTRUs and processes received signals from the WTRUs based on a measurement of the channel matrix. The WTRUs may perform transmit precoding or eigen-beamforming using the channel matrix information. The WTRUs may also perform transmit diversity.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 7, 2008
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Robert Lind Olesen, Donald M. Grieco, Kyle Jung-Lin Pan
  • Publication number: 20070280387
    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: Application
    Filed: May 24, 2007
    Publication date: December 6, 2007
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Yingxue Li, Robert Lind Olesen
  • Publication number: 20070218952
    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: Application
    Filed: March 8, 2007
    Publication date: September 20, 2007
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Chang-Soo Koo, Nirav Shah, Robert Lind Olesen