Patents by Inventor Assaf Gurevitz

Assaf Gurevitz 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: 20200136773
    Abstract: Embodiments of an access point (AP), station (STA) and method of communication are generally described herein. The STA may determine a portion of a channel occupied by an incumbent device. The STA may refrain from communication in a first subset of resource units (RUs) that overlap the portion of the channel occupied by the incumbent device. The STA may determine a combined RU that comprises two or more RUs of a second subset of RUs that do not overlap the portion of the channel occupied by the incumbent device. The STA may encode a physical layer convergence procedure protocol data unit (PPDU) for transmission in the combined RU. The PPDU may be encoded in accordance with joint coding across the RUs of the combined RU.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 30, 2020
    Inventors: Xiaogang Chen, Qinghua Li, Feng Jiang, Ziv Avital, Assaf Gurevitz, Robert J. Stacey, Chen Kojokaro, Thomas J. Kenney, Ehud Reshef, Daniel F. Bravo, Laurent Cariou
  • Patent number: 10531403
    Abstract: Methods, apparatuses, computer readable media for uplink transmission power control in a wireless network. An apparatus of a wireless device comprising processing circuitry is disclosed. The processing circuitry is configured to decode a trigger frame from an access point for an uplink communication, the trigger frame comprising an uplink resource allocation for the station, the uplink resource allocation including common information and per station information, the common information including an indication of a maximum receive power at the access point, the per station information comprising an identification of the station, and an indication of a resource unit (RU). The processing circuitry may be further configured to: encode an uplink (UL) physical layer convergence procedure (PLCP) protocol data unit (PPDU)(UL-PPDU) in accordance with the indication of the RU. The processing circuitry may be further configured to: determine a transmit power for the UL-PPDU based on the maximum receive power.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: January 7, 2020
    Assignee: Intel IP Corporation
    Inventors: Ilan Sutskover, Laurent Cariou, Yaron Alpert, Uri Perlmutter, Assaf Gurevitz, Ziv Avital, Avi Mansour, Chittabrata Ghosh
  • Patent number: 10523937
    Abstract: A method for noise shaping includes: reducing a bit-depth of an input signal to obtain a quantized input signal; feeding a quantization error corresponding to the bit-depth reduction of the input signal into a feedback loop to the input signal, the feedback loop comprising a first quantization stage, a second quantization stage and a correction stage, both the first and second quantization stages operating at the bit-depth of the input signal and the correction stage operating at a bit-depth of the quantization error; and generating a noise-shaped output signal at lower clock rate than the input signal based on the feedback loop.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: December 31, 2019
    Assignee: Intel Corporation
    Inventors: Michael Kerner, Nati Dinur, Assaf Gurevitz
  • Publication number: 20190342757
    Abstract: Methods and apparatuses for arranging sounding symbol are provided. An example apparatus comprises memory; and processing circuitry coupled to the memory. The processing circuitry is configured to encode a sounding signal. The sounding signal comprises a plurality of sounding symbols, and the repetition of sounding symbols to be transmitted in sequence is avoided.
    Type: Application
    Filed: June 25, 2019
    Publication date: November 7, 2019
    Inventors: Assaf GUREVITZ, Robert STACEY, Jonathan SEGEV, Qinghua LI, Danny ALEXANDER, Shlomi VITURI, Feng JIANG
  • Publication number: 20190293780
    Abstract: Some demonstrative embodiments include apparatuses systems and/or methods of ranging measurement. For example, an apparatus may include circuitry and logic configured to cause a first wireless communication station (STA) to receive from a second STA a sounding transmission for a range measurement of a range between the first STA and the second STA; to determine a channel response estimation based on the sounding transmission from the second STA; to determine a timing value based on the channel response estimation; and to transmit a feedback message to the second STA, the feedback message including the timing value.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Inventors: Qinghua Li, Feng Jiang, Xintian Lin, Ofer Bar-Shalom, Leor Banin, Jonathan Segev, Assaf Gurevitz, Yuval Amizur, Robert Stacey
  • Patent number: 10420038
    Abstract: Methods, apparatuses, computer readable media for uplink transmission power control in a wireless network. An apparatus of a wireless device comprising processing circuitry is disclosed. The processing circuitry is configured to decode a trigger frame from an access point for an uplink communication, the trigger frame comprising an uplink resource allocation for the station, the uplink resource allocation including common information and per station information, the common information including an indication of a maximum receive power at the access point, the per station information comprising an identification of the station, and an indication of a resource unit (RU). The processing circuitry may be further configured to: encode an uplink (UL) physical layer convergence procedure (PLCP) protocol data unit (PPDU)(UL-PPDU) in accordance with the indication of the RU. The processing circuitry may be further configured to: determine a transmit power for the UL-PPDU based on the maximum receive power.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: September 17, 2019
    Assignee: Intel IP Corporation
    Inventors: Ilan Sutskover, Laurent Cariou, Yaron Alpert, Uri Perlmutter, Assaf Gurevitz, Ziv Avital, Avi Mansour, Chittabrata Ghosh
  • Patent number: 10404331
    Abstract: A wireless device configured to process Multiple-Input Multiple-Output (MIMO) data streams. The wireless device includes a Singular Value Decompostion (SVD) engine configured to diagonalize a channel matrix into a precoding matrix; an SVD rotation engine configured to phase-rotate the precoding matrix, such that the channel matrix is partially de-diagnalized; and a transmitter configured to transmit a data packet corresponding to the phase-rotated precoding matrix.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: September 3, 2019
    Assignee: Intel IP Corporation
    Inventors: Tzahi Weisman, Shlomi Vituri, Assaf Gurevitz
  • Patent number: 10405273
    Abstract: Embodiments of an access point (AP), station (STA) and method for subcarrier scaling are generally described herein. The AP may transmit a high efficiency (HE) physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes a legacy long training field (L-LTF), a legacy signal (L-SIG) field, and an HE signal (HE-SIG) field. The HE-SIG may be based on HE-SIG symbols mapped to a group of HE subcarriers that includes legacy subcarriers and HE extension subcarriers. The L-LTF may be based on L-LTF pilot symbols mapped to the legacy subcarriers. The L-SIG may be based on L-SIG legacy symbols mapped to the legacy subcarriers and L-SIG extension pilot symbols mapped to the HE extension subcarriers. The AP may scale a per-subcarrier power of the L-SIG extension pilot symbols to match a per-subcarrier power of the L-LTF pilot symbols.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: September 3, 2019
    Assignee: Intel IP Corporation
    Inventors: Xiaogang Chen, Qinghua Li, Assaf Gurevitz, Tzahi Weisman
  • Publication number: 20190182365
    Abstract: Methods, apparatuses, and computer readable media for location measurement reporting in a wireless network are disclosed. An apparatus of a responder station is disclosed, the apparatus comprising processing circuitry configured to derive bits from a temporary key, and generate a first sequence and a second sequence using the bits, wherein the first sequence and second sequence comprise one or more symbols. The processing circuitry is further configured to concatenate the first sequence and the second sequence to form a new first sequence comprising the first sequence and the second sequence, and concatenate a modified first sequence and a modified second sequence to form a new second sequence. The processing circuitry may be configured to repeat a number of times the concatenate the first sequence through the concatenate the modified first sequence.
    Type: Application
    Filed: December 11, 2018
    Publication date: June 13, 2019
    Inventors: Qinghua Li, Feng Jiang, Assaf Gurevitz, Robert J. Stacey, Huaning Niu, Yuan Zhu, Jonathan Segev
  • Publication number: 20190159207
    Abstract: This disclosure describes systems, methods, and devices related to tone mapping for a high-efficiency (HE) trigger-based (TB) null data packet (NDP) feedback physical layer protocol data unit (PPDU). A device may identify a frame received from a second device. The device may determine, based on the frame, a resource unit allocated to the device, wherein the resource unit is associated with a 20 MHz sub-channel of a bandwidth. The device may determine, based on the resource unit and the bandwidth, tones associated with a HE short training field (HE-STF) of a HE TB NDP feedback PPDU. The device may send the HE TB NDP feedback PPDU to the second device in the 20 MHz sub-channel, wherein the HE TB NDP feedback PPDU includes the tones.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 23, 2019
    Inventors: Xiaogang Chen, Shlomi Vituri, Assaf Gurevitz, Qinghua Li, Feng Jiang
  • Publication number: 20190141537
    Abstract: This disclosure describes systems, methods, and devices related to an invalid location measurement report (LMR) indication. A device may identify a first null data packet (NDP) received from a first station device during, wherein the first NDP is used for channel sounding. The device may perform a time of arrival (ToA) calculation based on the NDP. The device may determine an invalid indication associated with the first NDP based on the ToA calculation. The device may generate an LMR comprising of the invalid measurement indication. The device may cause to send the LMR to the first device.
    Type: Application
    Filed: December 26, 2018
    Publication date: May 9, 2019
    Inventors: Feng Jiang, Qinghua Li, Jonathan Segev, Assaf Gurevitz, Danny Alexander, Xiaogang Chen
  • Patent number: 10284332
    Abstract: A spur cancelation system includes error circuitry, inverse spur circuitry, and injection circuitry. The error circuitry is configured to generate an error signal based at least on a first transceiver signal in a transceiver signal processing chain. The inverse spur circuitry is configured to, based at least on the error signal, determine a gain and a phase of a spur signal in the transceiver signal and generate an inverse spur signal based at least on the gain and the phase of the spur signal. The injection circuitry is configured to inject the inverse spur signal to cancel a spur in a second transceiver signal in the transceiver signal processing chain.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: May 7, 2019
    Assignee: Intel IP Corporation
    Inventors: Rotem Avivi, Michael Kerner, Assaf Gurevitz
  • Publication number: 20190132879
    Abstract: This disclosure describes systems, methods, and devices related to scrambler initialization for multi-user (MU) clear to send (CTS) transmission. A first device may identify a MU request to send (RTS) frame received from a second device. The first device may determine an initial state of a scrambler based on the first 7 bits of a service field of the MU-RTS frame. The first device may cause first data to be scrambled, using the initial state of the scrambler, resulting in second data. The first device may cause to send a MU-CTS frame that comprises the second data to the second device.
    Type: Application
    Filed: December 26, 2018
    Publication date: May 2, 2019
    Inventors: Xiaogang CHEN, Qinghua LI, Feng JIANG, Po-Kai HUANG, Assaf GUREVITZ
  • Publication number: 20190132154
    Abstract: For example, a wireless communication receiver may be configured to switch one or more RF components of the receiver between an on-state and an off-state based on at least one detection criterion for preamble detection of a frame preamble by a preamble detector of the receiver, switching the one or more RF components between the on-state and the off-state including switching the one or more RF components from the on-state to the off-state based on determination that the at least one detection criterion is not met, and switching the one or more RF components from the off-state to the on-state after an off-state period, wherein a duration of the off-state period is based at least on a preamble duration of the frame preamble; and to repeat switching the one or more RF components between the on-state and the off-state until the frame preamble is detected by the preamble detector.
    Type: Application
    Filed: December 27, 2018
    Publication date: May 2, 2019
    Inventors: Assaf Gurevitz, Oren Kaidar, Rafi Ben-Tal, Elad Meir, Hagay Barel
  • Publication number: 20190045361
    Abstract: Methods and apparatuses for arranging sounding symbol are provided. An example apparatus comprises memory; and processing circuitry coupled to the memory. The processing circuitry is configured to encode a sounding signal. The sounding signal comprises a plurality of sounding symbols, and the repetition of sounding symbols to be transmitted in sequence is avoided.
    Type: Application
    Filed: September 28, 2018
    Publication date: February 7, 2019
    Inventors: ASSAF GUREVITZ, ROBERT STACEY, JONATHAN SEGEV, QINGHUA LI, DANNY ALEXANDER, SHLOMI VITURI, FENG JIANG
  • Publication number: 20180254852
    Abstract: A spur cancelation system includes error circuitry, inverse spur circuitry, and injection circuitry. The error circuitry is configured to generate an error signal based at least on a first transceiver signal in a transceiver signal processing chain. The inverse spur circuitry is configured to, based at least on the error signal, determine a gain and a phase of a spur signal in the transceiver signal and generate an inverse spur signal based at least on the gain and the phase of the spur signal. The injection circuitry is configured to inject the inverse spur signal to cancel a spur in a second transceiver signal in the transceiver signal processing chain.
    Type: Application
    Filed: March 3, 2017
    Publication date: September 6, 2018
    Inventors: Rotem Avivi, Michael Kerner, Assaf Gurevitz
  • Publication number: 20180199283
    Abstract: Embodiments of an access point (AP), station (STA) and method for subcarrier scaling are generally described herein. The AP may transmit a high efficiency (HE) physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes a legacy long training field (L-LTF), a legacy signal (L-SIG) field, and an HE signal (HE-SIG) field. The HE-SIG may be based on HE-SIG symbols mapped to a group of HE subcarriers that includes legacy subcarriers and HE extension subcarriers. The L-LTF may be based on L-LTF pilot symbols mapped to the legacy subcarriers. The L-SIG may be based on L-SIG legacy symbols mapped to the legacy subcarriers and L-SIG extension pilot symbols mapped to the HE extension subcarriers. The AP may scale a per-subcarrier power of the L-SIG extension pilot symbols to match a per-subcarrier power of the L-LTF pilot symbols.
    Type: Application
    Filed: March 8, 2018
    Publication date: July 12, 2018
    Inventors: Xiaogang Chen, Qinghua Li, Assaf Gurevitz, Tzahi Weisman
  • Patent number: 10009840
    Abstract: Embodiments of an access point (AP), station (STA) and method for subcarrier scaling are generally described herein. The AP may transmit a high efficiency (HE) physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes a legacy long training field (L-LTF), a legacy signal (L-SIG) field, and an HE signal (HE-SIG) field. The HE-SIG may be based on HE-SIG symbols mapped to a group of HE subcarriers that includes legacy subcarriers and HE extension subcarriers. The L-LTF may be based on L-LTF pilot symbols mapped to the legacy subcarriers. The L-SIG may be based on L-SIG legacy symbols mapped to the legacy subcarriers and L-SIG extension pilot symbols mapped to the HE extension subcarriers. The AP may scale a per-subcarrier power of the L-SIG extension pilot symbols to match a per-subcarrier power of the L-LTF pilot symbols.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: June 26, 2018
    Assignee: Intel IP Corporation
    Inventors: Xiaogang Chen, Qinghua Li, Assaf Gurevitz, Tzahi Weisman
  • Publication number: 20180175918
    Abstract: A wireless device configured to process Multiple-Input Multiple-Output (MIMO) data streams. The wireless device includes a Singular Value Decompostion (SVD) engine configured to diagonalize a channel matrix into a precoding matrix; an SVD rotation engine configured to phase-rotate the precoding matrix, such that the channel matrix is partially de-diagnalized; and a transmitter configured to transmit a data packet corresponding to the phase-rotated precoding matrix.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 21, 2018
    Inventors: Tzahi Weisman, Shlomi Vituri, Assaf Gurevitz
  • Patent number: 9930692
    Abstract: This disclosure describes methods, apparatus, and systems related to early indication system. A device may identify a high efficiency frame in accordance with a high efficiency communication standard, received from a first device, the high efficiency frame including, at least in part, one or more legacy signal fields and one or more high efficiency signal fields. The device may determine a length field included in one of the one or more legacy signal fields, wherein the length field includes an indication bit. The device may determine a position of a high efficiency short training field within the high efficiency frame based at least in part on the indication bit.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: March 27, 2018
    Assignee: Intel Corporation
    Inventors: Qinghua Li, Xiaogang Chen, Ran Shimon, Robert Stacey, Assaf Gurevitz