Patents by Inventor Hossein Dehghan

Hossein Dehghan 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: 10985874
    Abstract: An example method may include receiving a wireless packet from a sender node at a receiver node that includes a PHY and a MAC. The wireless packet may include multiple codewords. The method may include error checking the codewords at the PHY of the receiver node for codeword-level errors. The method may include generating multiple MPDUs from the codewords. The method may include error checking the MPDUs at the MAC of the receiver node for MPDU-level errors. The method may include generating two-tier feedback based on the error checking at the PHY and the MAC of the receiver node. The method may include sending the two-tier feedback to the sender node.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: April 20, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Imran Latif, Sigurd Schelstraete, Hossein Dehghan, Huizhao Wang
  • Patent number: 10911162
    Abstract: A MIMO transceiver may include a communication chain configured to generate a signal at a first frequency. The communication chain may include a pre-distorter configured to accept pre-distortion parameters to pre-distort signals. The communication chain may include a PA to amplify the signals. The MIMO transceiver may include a DPD chain configured to receive the signal at the first frequency. The DPD chain may include a data converter to sample the signal using a sampling rate based on a baseband frequency. The data converter may be configured to generate a sample signal based on the sampling of the signal. The DPD chain may include a buffer configured to buffer the sample signal. The MIMO transceiver may include a DPD circuit configured to calibrate the pre-distortion parameters calibrated based on the buffered sample signal to compensate for non-linearity in amplification provided by the PA of the communication chain.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: February 2, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Abhishek Kumar Agrawal, Hossein Dehghan
  • Publication number: 20210028962
    Abstract: Example implementations are directed to methods and systems employing a solicited sounding protocol that includes receiving, by a second access point, a sounding trigger broadcast by a first access point. The methods and systems also include receiving, by the second access point, a dedicated training signal from a first station in response to the sounding trigger broadcast by the first access point, and generating, by the second access point, channel characteristics of a channel based on the first dedicated training signal, the channel including a forward channel between the second access point and the first station.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 28, 2021
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Sigurd SCHELSTRAETE, Hossein DEHGHAN, Debashis DASH
  • Publication number: 20210021306
    Abstract: A method to operate a wireless access point (WAP) that includes identifying multiple stations from uplink statistics of a plurality of uplinks and determining an optimal spatial state of an antenna array for reception of the plurality of uplinks. Channel state information (CSI) is evaluated for each antenna in the antenna array. Determining the optimal spatial state of the antenna array includes using the CSI for each antenna to extrapolate the optimal spatial state of the antenna array for the plurality of uplinks. The method further includes changing a spatial state of the antenna array to the optimal spatial state.
    Type: Application
    Filed: October 1, 2020
    Publication date: January 21, 2021
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Hossein DEHGHAN, Sigurd SCHELSTRAETE
  • Publication number: 20200344260
    Abstract: A privacy-enhancing wireless communication method for use by a transmitting wireless device having a first location, the method comprising: obtaining a frame preamble using a transceiver device at a location, wherein the frame preamble includes a predetermined pattern and wherein movement information corresponding to the location is detectable based on channel state information of the transceiver device in accordance with the predetermined pattern; modifying the predetermined pattern of the frame preamble to include amplitude or phase distortion; and masking the movement information by transmitting, using the transceiver device, a frame including the frame preamble with the modified predetermined pattern.
    Type: Application
    Filed: March 4, 2020
    Publication date: October 29, 2020
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Debashis DASH, Hossein DEHGHAN
  • Patent number: 10797765
    Abstract: A wireless access point (WAP) for wireless communication with associated stations on selected orthogonal frequency division multiplexed (OFDM) communication channels of a wireless local area network (WLAN). The WAP includes: an array of antennas having a number of spatial states, a plurality of components coupled to one another to form receive and transmit chains, and an antenna control circuit. The antenna control circuit couples to the plurality of components and to the array of antennas to determine for each uplink an optimal spatial state of the array of antennas for receiving said uplink; and to change the spatial state of the array of antennas for each uplink to match the optimum determined spatial state therefore.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: October 6, 2020
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Hossein Dehghan, Sigurd Schelstraete
  • Publication number: 20200259541
    Abstract: A method may include obtaining spatial diagnostics data determined independent of changes to channel state parameters associated with a communication channel; and providing a service associated with a location at which the network exists using the spatial diagnostics data. Another method may include obtaining channel state parameters associated with a communication channel, the channel state parameters changing over time; determining spatial diagnostics data independent of changes to the channel state parameters; and providing a service associated with a location at which the network exists using the spatial diagnostics data. Another method may include monitoring activity at a location based on spatial diagnostics data associated with a communication channel of a network with a WAP; and in response to detecting an unrecognized device at the location, calibrating the WAP to nullify parameters of the communication channel from the unrecognized device without disrupting communication with authorized devices.
    Type: Application
    Filed: April 23, 2020
    Publication date: August 13, 2020
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Debashis DASH, Hossein DEHGHAN, Georgy GILYAROVSKIY
  • Patent number: 10673506
    Abstract: Approaches are described for accurate spatial diagnostics data and channel state information (CSI) recording due to dynamic bandwidth selection and other network changes in a wireless local area network (WLAN). Data transmissions such as channel soundings of a network, including data communications between networked computing devices on a communication channel of the network, can be obtained. The data communications can be associated with channel state parameters that can describe characteristics of the channel through which data is transmitted. The channel state parameters can be monitored overtime to detect a trigger event on the network. A type of trigger event can be determined based on channel state parameters before and after the event. Optimization parameters (e.g., operation parameters, calibration parameters, etc.) or other such information can be determined based on the type of trigger event.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: June 2, 2020
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Debashis Dash, Hossein Dehghan, Georgy Gilyarovskiy
  • Patent number: 10656268
    Abstract: An acoustic spatial diagnostic circuit couples to an array of microphones to successively sample an acoustic environment surrounding a wireless transceiver to generate an acoustic spatial map of activity within the environment based on sets of acoustic samples and execute one or more actions based on a related portion of the acoustic spatial map exhibiting one or more correlations with a spatial context condition of a wireless trained transceiver.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: May 19, 2020
    Assignee: ON SEMICONDUCTOR CONNECTIVITY SOLUTIONS, INC.
    Inventors: Aykut Bultan, Narayanan Bharath, Sam Heidari, Hossein Dehghan
  • Publication number: 20200153547
    Abstract: An example method may include receiving a wireless packet from a sender node at a receiver node that includes a PHY and a MAC. The wireless packet may include multiple codewords. The method may include error checking the codewords at the PHY of the receiver node for codeword-level errors. The method may include generating multiple MPDUs from the codewords. The method may include error checking the MPDUs at the MAC of the receiver node for MPDU-level errors. The method may include generating two-tier feedback based on the error checking at the PHY and the MAC of the receiver node. The method may include sending the two-tier feedback to the sender node.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 14, 2020
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Imran Latif, Sigurd Schelstraete, Hossein Dehghan, Huizhao Wang
  • Publication number: 20200145155
    Abstract: An example method may include receiving a pre-payload portion of a packet at a receiver node. A link associated with a sender node of the packet may be identified based on the pre-payload portion. One or more baseband receive parameters associated with the identified link may be selected and loaded at the receiver node. A payload of the packet may be received at the receiver node using the selected baseband receive parameters. Another example method may include detecting arrival of a packet at a receiver node by detecting OTA energy using at least one of multiple antenna sectors. One or more RF receive parameters of the receiver node may be selected based on information included in or determined from the pre-payload portion of the packet. A payload of the packet may be received at the receiver node using the selected RF receive parameters of the receiver node.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 7, 2020
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Hossein DEHGHAN-FARD, Debashis DASH
  • Publication number: 20200145072
    Abstract: An example method may include configuring a pattern of a sounding packet of a first wireless node in a resource space. Configuring the pattern may include assigning first precoders to a first subset of the resource space for a first antenna sector of the first wireless node; and assigning second precoders to a second subset of the resource space for a second antenna sector of the first wireless node. The method may include wirelessly transmitting the sounding packet with the configured pattern to a second wireless node. The method may include transmitting data packets from the first wireless node to the second wireless node according to one or more transmission parameters that are at least one of received from the second wireless node or determined based on channel state information (CSI) feedback received from the second wireless node.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 7, 2020
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Debashis DASH, Hossein DEHGHAN-FARD, Reza HOSHYAR
  • Publication number: 20200145895
    Abstract: Methods and systems describe herein relate to a reconfigurable multi-radio bridge that may connect a local area network (LAN) with an access point (AP) or other WAP to the backhaul and may dynamically change and/or select transmission methods. An example implementation of a reconfigurable multi-radio bridge performs a method including discovering a topology of a network that includes one or more wireless stations (STAs), evaluating a metric for each of at least two routes discovered in the topology, receiving a packet that identifies a first STA of the one or more STAs as an intended destination of the packet, selecting a route of the at least two routes over which to send the packet based on the metric, and sending the packet from a reconfigurable multi-radio bridge over the selected route toward the first STA.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 7, 2020
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Debashis DASH, Hossein DEHGHAN-FARD, Simon DUXBURY, Wanjui HO
  • Publication number: 20200091971
    Abstract: A wireless access point (WAP) for wireless communication with associated stations on selected orthogonal frequency division multiplexed (OFDM) communication channels of a wireless local area network (WLAN). The WAP includes: an array of antennas having a number of spatial states, a plurality of components coupled to one another to form receive and transmit chains, and an antenna control circuit. The antenna control circuit couples to the plurality of components and to the array of antennas to determine for each uplink an optimal spatial state of the array of antennas for receiving said uplink; and to change the spatial state of the array of antennas for each uplink to match the optimum determined spatial state therefore.
    Type: Application
    Filed: November 4, 2019
    Publication date: March 19, 2020
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Hossein DEHGHAN, Sigurd SCHELSTRAETE
  • Patent number: 10560140
    Abstract: A MIMO wireless transceiver includes: antennas, components forming transmit and receive chains coupled to the antennas, a signal combiner, and a predistortion calibration circuit. The transmit chain components include: pre-distorter circuits and power amplifiers (PA)s, The pre-distorter circuits each couple to a transmit chain for pre-distorting an associated signal thereon. The PAs are input coupled to a corresponding transmit chain and output coupled to a corresponding antenna. The signal combiner combines the amplified signals from all of the PAs into a combined output signal.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: February 11, 2020
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Songping Wu, Hossein Dehghan, Abhishek Kumar Agrawal
  • Patent number: 10531490
    Abstract: A wireless access point (WAP) including: antennas, shared and discrete components forming transmit and receive chains coupled to the antenna for orthogonal frequency division multiplexed (OFDM) multiple-input multiple-output (MIMO) WLAN communications with wireless stations. The station set identifier identifies any legacy stations that do not support multi-user (MU) MIMO concurrent downlinks from the WAP, and a number of WLAN subnets for concurrent downlinks communications thereto. The subnet controller generates the WLAN subnets each having a discrete beacon channel together with a discrete medium access control (MAC) for collision sense multiple access (CSMA) uplinks from associated stations to the WAP, and concurrent downlinks from the WAP including concurrent downlinks to legacy stations associated with different subnets; and the subnet controller configured to inject virtual access control indicia into each of the subnets to control uplinks from legacy stations on each of the subnets to the WAP.
    Type: Grant
    Filed: April 29, 2018
    Date of Patent: January 7, 2020
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Bahador Amiri, Hossein Dehghan, Qasem Aldrubi, Sam Heidari
  • Patent number: 10516498
    Abstract: A WAP for wireless communications on a selected orthogonal frequency division multiplexed (OFDM) communication channel of a wireless local area network (WLAN). The transceiver includes: antennas, transmit and receive chain components, a stream separation control circuit, and an Inter Carrier Interference (ICI) removal circuit. The receive chain components include: an equalizer component converting a received uplink communication packet from one or more of the associated stations at an input into discrete communication streams at an output thereof. The stream separation control circuit couples to the equalizer component to control the separation of the communication streams at the output of the equalizer component into groups, with each group comprising all of the communication streams transmitted by a corresponding one of the one or more associated stations. The ICI removal circuit couples to the stream separation control circuit to discretely remove ICI from each group of streams.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: December 24, 2019
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Kirill Yurkov, Mikhail Lyakh, Hossein Dehghan
  • Publication number: 20190373546
    Abstract: A wireless transceiver having components coupled to one another to form transmit and receive chains of a plurality of radios which radios support wireless communications with associated stations on a corresponding wireless local area network (WLAN). The wireless transceiver also includes: a utilization monitoring circuit, an association targeting circuit, and a power backoff circuit. The utilization monitoring circuit monitors communications between each of the radios and its associated stations. The association targeting circuit identifies, from the monitored communications of the utilization monitoring circuit, an underutilized one of the radios as a target radio for re-associating stations currently associated with at least one other radio and initiates the re-association with the target radio of the stations currently associated with the at least one other radio. The power backoff circuit is responsive to the association targeting circuit to reduce power to the at least one other radio.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 5, 2019
    Inventors: Debashis DASH, Joe Chow, Sam HEIDARI, Hossein DEHGHAN
  • Publication number: 20190341988
    Abstract: Example implementations are directed to methods and systems employing a solicited sounding protocol that includes an efficient communication sequence for operating a wireless transceiver transmitting a sounding trigger to one or more beamformees via a forward channel, receiving at least one dedicated training signal from the one or more beamformees via a reverse channel in response to the sounding trigger, and for each of the received dedicated training signal. The method also includes estimating forward CSI derived based on the dedicated training signal from an associated beamformee; and where subsequent packets are precoded with precoding derived from the forward CSI for transmission to the associated beamformee via the forward channel. Example aspects including scheduling multiple dedicated training signals from one or more beamformees based on a single sounding trigger.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 7, 2019
    Inventors: Sigurd SCHELSTRAETE, Hossein DEHGHAN, Debashis DASH
  • Patent number: 10469140
    Abstract: A wireless access point (WAP) for wireless communication with associated stations on selected orthogonal frequency division multiplexed (OFDM) communication channels of a wireless local area network (WLAN). The WAP includes: an array of antennas having a number of spatial states, a plurality of components coupled to one another to form receive and transmit chains, and an antenna control circuit. The antenna control circuit couples to the plurality of components and to the array of antennas to determine for each uplink an optimal spatial state of the array of antennas for receiving said uplink; and to change the spatial state of the array of antennas for each uplink to match the optimum determined spatial state therefore.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: November 5, 2019
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Hossein Dehghan, Sigurd Schelstraete