Patents by Inventor Vladimir Kravtsov

Vladimir Kravtsov 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: 10505765
    Abstract: This disclosure describes methods, apparatus, and systems related to a channel estimation field (CEF) for various standards, for example, the 802.11ay standard, for single carrier (SC) MIMO channel estimation. In one embodiment, the CEF can use Golay complementary sequences. In another embodiment, the Golay complementary sequences can be defined similar to Golay complementary sequences definitions that can be found in various legacy standards, for example, the legacy 802.11ad standard. Various embodiments of the disclosure can allow channel estimation in the time domain and/or frequency domain, having small or negligible inter-stream interference. Various embodiments of the disclosure can enable an extendable structure for various M×N MIMO configurations, where M and N are positive integers.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: December 10, 2019
    Assignee: Intel IP Corporation
    Inventors: Artyom Lomayev, Alexander Maltsev, Yaroslav P. Gagiev, Assaf Kasher, Michael Genossar, Vladimir Kravtsov, Carlos Cordeiro
  • Publication number: 20190207713
    Abstract: For example, a station may generate a plurality of space-time streams including at least a first space-time stream and a second space-time stream, the first space-time stream including, in a first interval, a first data sequence followed by a first Guard Interval (GI) sequence, the first space-time stream comprising, in a second interval subsequent to the first interval, a second data sequence followed by the first GI sequence, the second space-time stream comprising, in the first interval, a sign-inverted and time-inverted complex conjugate of the second data sequence followed by a second GI sequence, the second space-time stream comprising, in the second interval, a time-inverted complex conjugate of the first data sequence followed by the second GI sequence; and transmit a Single Carrier (SC) Multiple-Input-Multiple-Output (MIMO) transmission based on the plurality of space-time streams.
    Type: Application
    Filed: June 29, 2017
    Publication date: July 4, 2019
    Inventors: Artyom Lomayev, Alexander Maltsev, Michael Genossar, Claudio Da Silva, Carlos Cordeiro, Vladimir Kravtsov, Iaroslav P. Gagiev
  • Patent number: 10075323
    Abstract: This disclosure describes methods, devices, and systems related to interleaving and deinterleaving symbols used in single carrier modulation and coding schemes. A device is disclosed comprising at least one memory storing computer-executable instructions, and at least one processor configured to access the at least one memory. The at least one processor is further configured to execute the computer-executable instructions to: receive a source data bit string from the at least one memory, scramble the source data bit string, parse the scrambled source data bit string into a plurality of segments, assign a portion of the plurality of segments to a Single Carrier-Block (SC-BLK), and encode the portion of the plurality of segments into a code word, wherein the code word comprises a plurality of bit groups, and each bit group comprises one or more bits.
    Type: Grant
    Filed: December 26, 2015
    Date of Patent: September 11, 2018
    Assignee: Intel IP Corporation
    Inventors: Assaf Kasher, Michael Genossar, Maxim Greenberg, Vladimir Kravtsov
  • Patent number: 10027442
    Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating a Single Carrier (SC) Space Time Block Coding (STBC) transmission. For example, a station may generate a plurality of space-time streams including at least a first space-time stream and a second space-time stream, the first space-time stream including, in a first interval, a first data sequence followed by a first Guard Interval (GI) sequence, the second space-time stream including, in the first interval, a second data sequence followed by a second GI sequence, the first space time stream comprising, in a second interval subsequent to the first interval, a sign-inverted and time-inverted complex conjugate of the second data sequence followed by the first GI sequence, the second stream including, in the second interval, a time-inverted complex conjugate of the first data sequence followed by the second GI sequence; and transmit a SC STBC transmission based on the plurality of space-time streams.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: July 17, 2018
    Assignee: INTEL IP CORPORATION
    Inventors: Vladimir Kravtsov, Artyom Lomayev, Iaroslav P. Gagiev, Alexander Maltsev, Michael Genossar, Carlos Cordeiro
  • Publication number: 20180026750
    Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating a Single Carrier (SC) Space Time Block Coding (STBC) transmission. For example, a station may generate a plurality of space-time streams including at least a first space-time stream and a second space-time stream, the first space-time stream including, in a first interval, a first data sequence followed by a first Guard Interval (GI) sequence, the second space-time stream including, in the first interval, a second data sequence followed by a second GI sequence, the first space time stream comprising, in a second interval subsequent to the first interval, a sign-inverted and time-inverted complex conjugate of the second data sequence followed by the first GI sequence, the second stream including, in the second interval, a time-inverted complex conjugate of the first data sequence followed by the second GI sequence; and transmit a SC STBC transmission based on the plurality of space-time streams.
    Type: Application
    Filed: December 30, 2016
    Publication date: January 25, 2018
    Inventors: Vladimir Kravtsov, Artyom Lomayev, Iaroslav P. Gagiev, Alexander Maltsev, Michael Genossar, Carlos Cordeiro
  • Publication number: 20170317852
    Abstract: This disclosure describes methods, apparatus, and systems related to a channel estimation field (CEF) for various standards, for example, the 802.11ay standard, for single carrier (SC) MIMO channel estimation. In one embodiment, the CEF can use Golay complementary sequences. In another embodiment, the Golay complementary sequences can be defined similar to Golay complementary sequences definitions that can be found in various legacy standards, for example, the legacy 802.11ad standard. Various embodiments of the disclosure can allow channel estimation in the time domain and/or frequency domain, having small or negligible inter-stream interference. Various embodiments of the disclosure can enable an extendable structure for various M×N MIMO configurations, where M and N are positive integers.
    Type: Application
    Filed: September 29, 2016
    Publication date: November 2, 2017
    Inventors: Artyom Lomayev, Alexander Maltsev, Yaroslav P. Gagiev, Assaf Kasher, Michael Genossar, Vladimir Kravtsov, Carlos Cordeiro
  • Patent number: 9722650
    Abstract: Described herein are technologies related to an implementation of noise power estimation in a receiver of a device.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: August 1, 2017
    Assignee: Intel Corporation
    Inventors: Vladimir Kravtsov, Yaakov Ben-Bassat, Michael Genossar
  • Publication number: 20170111205
    Abstract: This disclosure describes methods, devices, and systems related to interleaving and deinterleaving symbols used in single carrier modulation and coding schemes. A device is disclosed comprising at least one memory storing computer-executable instructions, and at least one processor configured to access the at least one memory. The at least one processor is further configured to execute the computer-executable instructions to: receive a source data bit string from the at least one memory, scramble the source data bit string, parse the scrambled source data bit string into a plurality of segments, assign a portion of the plurality of segments to a Single Carrier-Block (SC-BLK), and encode the portion of the plurality of segments into a code word, wherein the code word comprises a plurality of bit groups, and each bit group comprises one or more bits.
    Type: Application
    Filed: December 26, 2015
    Publication date: April 20, 2017
    Inventors: Assaf Kasher, Michael Genossar, Maxim Greenberg, Vladimir Kravtsov
  • Patent number: 9615326
    Abstract: An apparatus may comprise a signal mapper to map a pre-emphasized signal to sub-carriers symmetrically about DC, and a peak-to-average-power reduction (PAPR) module arranged to receive a pre-emphasized signal and treat the pre-emphasized signal so as to reduce PAPR in a transmit signal sent from the transmitter. Other embodiments are described and claimed.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: April 4, 2017
    Assignee: INTEL CORPORATION
    Inventor: Vladimir Kravtsov
  • Publication number: 20160286011
    Abstract: Various embodiments are generally directed to an apparatus, method and other techniques to generate a packet comprising at least a preamble, a header including a PHY layer termination indicator, and data, determine an end of the packet based on information received from a media access control (MAC) layer, generate an end of packet indicator for the packet. Further, techniques may also include communicating the packet including the preamble, the PHY layer termination indicator, and the data as one or more blocks, at least a portion of the packet communicated with the end of packet indicator.
    Type: Application
    Filed: March 26, 2015
    Publication date: September 29, 2016
    Inventors: ASSAF KASHER, VLADIMIR KRAVTSOV, MICHAEL GENOSSAR, TOM HAREL, ERAN GERSON, SOLOMON TRAININ
  • Publication number: 20160173150
    Abstract: Described herein are technologies related to an implementation of noise power estimation in a receiver of a device.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 16, 2016
    Applicant: INTEL CORPORATION
    Inventors: Vladimir Kravtsov, Yaakov Ben-Bassat, Miki Genossar
  • Patent number: 9338032
    Abstract: A device includes an input configured to receive a signal, wherein the signal includes at least one data block and a plurality of signal parts known to the device, a first signal part at the beginning of the data block and a second signal part at the end of the data block. The device further includes an equalizer and a pre-equalizer coupled between the input and the equalizer, wherein the pre-equalizer is configured to estimate a phase shift between the plurality of signal parts.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: May 10, 2016
    Assignee: Intel IP Corporation
    Inventors: Michael Genossar, Yaniv Kaver, Vladimir Kravtsov, Uriel Lemberger
  • Patent number: 9319166
    Abstract: In a wireless, OFDM system, phase noise may be mitigated through the use of an interleaver that is designed to distribute coded block bits across subcarriers of multiple OFDM symbols. Doing so decreases the non-stationary properties of the noise. Such an interleaver may be a rectangular interleaver that maps each block to a different subcarrier to create frequency diversity and to a different OFDM symbol, to create time diversity. One exemplary method of interleaving the symbols is to place a first symbol at row X and column Y of the interleaver. The next symbol is placed in row X+1 and column Y+1. The result of such an interleaving process is a great reduction in the block error rate.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: April 19, 2016
    Assignee: Intel Corporation
    Inventors: Alexey Vladimirovich Khoryaev, Artyom Lomayev, Alexander Alexandrovich Maltsev, Vladimir Kravtsov, Michael Genossar
  • Publication number: 20150156036
    Abstract: A device includes an input configured to receive a signal, wherein the signal includes at least one data block and a plurality of signal parts known to the device, a first signal part at the beginning of the data block and a second signal part at the end of the data block. The device further includes an equalizer and a pre-equalizer coupled between the input and the equalizer, wherein the pre-equalizer is configured to estimate a phase shift between the plurality of signal parts.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 4, 2015
    Inventors: Michael GENOSSAR, Yaniv KAVER, Vladimir KRAVTSOV, Uriel LEMBERGER
  • Publication number: 20150155961
    Abstract: In a wireless, OFDM system, phase noise may be mitigated through the use of an interleaver that is designed to distribute coded block bits across subcarriers of multiple OFDM symbols. Doing so decreases the non-stationary properties of the noise. Such an interleaver may be a rectangular interleaver that maps each block to a different subcarrier to create frequency diversity and to a different OFDM symbol, to create time diversity. One exemplary method of interleaving the symbols is to place a first symbol at row X and column Y of the interleaver. The next symbol is placed in row X+1 and column Y+1. The result of such an interleaving process is a great reduction in the block error rate.
    Type: Application
    Filed: September 26, 2012
    Publication date: June 4, 2015
    Inventors: Alexey Khoryaev, Artyom Lomayev, Alexander Maltsev, Vladimir Kravtsov, Michael Genossar
  • Patent number: 8897351
    Abstract: According to various embodiments, methods, apparatuses and systems are provided to allow a transmitter to reduce the Peak to Average Power Ratio (PAPR) of a modulated signal by applying a pre-emphasis filter to the signal, clipping the pre-distorted signal to reduce the PAPR, and applying a de-emphasis filter to the clipped signal to reduce the spectral leakage caused by the clipping. Other embodiments may be disclosed or claimed.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: November 25, 2014
    Assignee: Intel Corporation
    Inventor: Vladimir Kravtsov
  • Publication number: 20140270015
    Abstract: An approach is provided to compensate for inter-carrier interference caused by phase noise in a transmitted or received signal. The approach involves causing an estimation of one or more phase noise spectrum taps that cause inter-carrier interference in a received signal. The approach also involves causing an approximation of an instantaneous phase noise spectrum by a low order finite impulse response filter based on the estimated one or more phase noise spectrum taps. The approach additionally involves determining a de-convolution filter having two or more filter coefficients for one or more orthogonal frequency-division multiplexing symbols associated with the received signal. The approach further involves causing the de-convolution filter to be matched to the approximated instantaneous phase noise spectrum.
    Type: Application
    Filed: June 28, 2012
    Publication date: September 18, 2014
    Inventors: Vladimir Kravtsov, Michael Genossar, Alexey Khoryaev, Artyom Lomayev
  • Patent number: 8675720
    Abstract: A noise estimation filter for an orthogonal frequency-division multiplexed (OFDM) system can include a filter bank module, a coefficient squaring module, and a summing module. The filter bank module can multiply a unitary vector by an OFDM signal vector to generate scalar products of the OFDM signal vector. The coefficient squaring module can square the scalar products and weight the scalar products to generate a plurality of weighted single estimates. The coefficient squaring module can include a squaring module for squaring the scalar product to generate a plurality of single estimates and a coefficient multiplication module for weighting each of the single estimates with a noise coefficient forming a plurality of weighted single estimates. The summing module can sum the weighted single estimates to generate a noise and interference power estimate.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 18, 2014
    Assignee: Intel Corporation
    Inventors: Ayelet Doron, Vladimir Kravtsov, Yuval Lomnitz
  • Patent number: 8582420
    Abstract: Embodiments of apparatuses, articles, methods, and systems for efficient generation of a time domain signal in multi-carrier communications are generally described herein. Other embodiments may be described and claimed.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: November 12, 2013
    Assignee: Intel Corporation
    Inventors: Michael Kerner, Vladimir Kravtsov, Tom Harel
  • Patent number: 8379688
    Abstract: An embodiment of the present invention provides an apparatus, comprising a transceiver configured for OFDM transmissions in frequency-contiguous, hopping, sub-channels.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: February 19, 2013
    Assignee: Intel Corporation
    Inventors: Vladimir Kravtsov, Tom Harel