Patents by Inventor Eldad Perahia

Eldad Perahia 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: 10742276
    Abstract: A method including selecting multiple dedicated radios on a transmission channel and programming multiple association identifiers on each dedicated radio is provided. Each of the association identifiers is configured to detect a resource unit assigned to one of multiple stations. The method includes providing multiple packets collected from the dedicated radios to a server and merging the packets from the dedicated radios to identify at least one station. Merging the packets includes identifying a preamble in the packets from the dedicated radios, matching the preamble from different dedicated radios, combining a data portion of the packets from different dedicated radios whose preamble match, selecting a time-stamp from one of the dedicated radios, and associating the time-stamp with the data portion. A system and a non-transitory, computer readable medium storing instructions to perform the above method are also provided.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: August 11, 2020
    Assignee: Hewlet Packard Enterprise Development LP
    Inventors: Shahnawaz Siraj, Eldad Perahia, Sachin N. Ganu, Liang Li
  • Publication number: 20200244321
    Abstract: A method including selecting multiple dedicated radios on a transmission channel and programming multiple association identifiers on each dedicated radio is provided. Each of the association identifiers is configured to detect a resource unit assigned to one of multiple stations. The method includes providing multiple packets collected from the dedicated radios to a server and merging the packets from the dedicated radios to identify at least one station. Merging the packets includes identifying a preamble in the packets from the dedicated radios, matching the preamble from different dedicated radios, combining a data portion of the packets from different dedicated radios whose preamble match, selecting a time-stamp from one of the dedicated radios, and associating the time-stamp with the data portion. A system and a non-transitory, computer readable medium storing instructions to perform the above method are also provided.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 30, 2020
    Inventors: Shahnawaz Siraj, Eldad Perahia, Sachin N. Ganu, Liang Li
  • Patent number: 10716022
    Abstract: Systems and methods for calculating uplink pathloss in a wireless local area network are provided. Uplink pathloss between an access point and client device operating in the wireless local area network can be calculated based on determining an effective maximum transmit power. Based on the effective maximum transmit power, and known uplink power headroom, a current transmit power of the client device can be determined. Based on the current transmit power of the client device, uplink pathloss can be determined. If the operating conditions and/or characteristics of the client device and/or wireless local area network change, the uplink pathloss may be re-evaluated.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: July 14, 2020
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Sachin Ganu, Gaurav Patwardhan, Eldad Perahia, Dongwoon Hahn
  • Patent number: 10708860
    Abstract: Systems and methods for wake up signaling in 802.11 DFS channels include enabling a primary connectivity radio of a device responsive to a wake up radio of the device receiving a composite radio signal transmitted by an access point in an 802.11 Dynamic Frequency Selection (DFS) channel, the composite radio signal comprising a wake up radio signal and a time-continuous signal, the time-continuous signal being substantially adjacent in frequency, but not necessarily contiguous in frequency, to the wake up radio signal; and exchanging data with the access point through the primary connectivity radio after the primary connectivity radio is enabled. The wake up radio signal may be an IEEE 802.11ba signal disposed in a center frequency band of a IEEE 802.11ax Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU). The time-continuous signal may be real or emulated data traffic disposed in at least one IEEE 802.11ax resource unit.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: July 7, 2020
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Eldad Perahia, Eric Johnson
  • Patent number: 10694452
    Abstract: Systems and methods for assigning BSS colors in a deployed wireless area network (WLAN) include identifying a plurality of APs of an external wireless network operating on a same channel as a deployed AP of a deployed wireless network; selecting as a subset of the plurality of APs of the external wireless network those APs of the external wireless network based on expected interference; grouping the APs of the subset of the plurality of APs by a basic service set (BSS) color used by each of the plurality of identified APs of the external wireless network to form AP BSS color groups; calculating an airtime utilization for each AP color group; and selecting a BSS color using the calculated airtime utilization and assigning the selected BSS color for use by the deployed AP of the deployed wireless network.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: June 23, 2020
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Gaurav Patwardhan, Sachin Ganu, Eldad Perahia, Dongwoon Hahn
  • Patent number: 10674513
    Abstract: Systems and methods for assigning default an alternative BSS colors in a wireless local area network (WLAN) including a network graph representing radio neighbors include assigning a frequency range and EIRP for each radio represented in the network graph; generating a subgraph of radios operating at the same frequency range; for the subgraph, determining a minimum number of basic service set (BSS) colors required to BSS color the subgraph without BSS color conflict; based on the minimum number of BSS colors, assigning a default BSS color to each radio in the subgraph to avoid BSS color conflict among radios in the subgraph; based on remaining BSS colors, assigning one or more alternative BSS colors to each radio in the subgraph.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: June 2, 2020
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Dongwoon Hahn, Sachin Ganu, Eldad Perahia, Gaurav Patwardhan
  • Patent number: 10659206
    Abstract: Various embodiments are generally directed to an apparatus, method and other techniques to determine a bandwidth in a frequency band to communicate information to stations, determine an Orthogonal Frequency-Division Multiple Access (OFDMA) tone allocation scheme based on the bandwidth, the OFDMA tone allocation scheme to include one or more resource units each comprising a plurality of tones and each having a fixed location in the bandwidth, and communicate information to the stations based on the OFDMA tone allocation scheme.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: May 19, 2020
    Assignee: Intel IP Corporation
    Inventors: Shahrnaz Azizi, Thomas J. Kenney, Eldad Perahia, Robert Stacey
  • Publication number: 20200092804
    Abstract: This disclosure is directed to controlling a wake-up radio (WUR) in a wireless station side client device (STA-device). In one example, after the STA-device has received negotiation parameters from a wireless access point (AP) to establish a wireless association as a network connection between the STA-device and the AP. The PCR may be disabled in favor of the WUR. The WUR, which may use less power than the PCR, may then monitor for Beacon Frames (e.g., in the disclosed beacon loop) and Discovery Frames (e.g., in the disclosed discovery loop). Based on a state machine, that may be implemented as computer instructions executed by a hardware processor of the STA-device. Generally, the STA-device may use the WUR and state machine implementation to determine a proper time to re-enable the PCR for communication with the AP.
    Type: Application
    Filed: September 19, 2018
    Publication date: March 19, 2020
    Inventors: Gaurav Patwardhan, Eldad Perahia
  • Publication number: 20200083969
    Abstract: Systems and methods for spatial reuse in a deployed wireless area network (WLAN) include identifying a plurality of competing APs of an external wireless network operating on a same channel as a deployed AP of a deployed wireless network; examining the received signal strength indicator (RSSI) of the identified plurality of competing APs of the external wireless network; filtering out selected one or more of the identified plurality of competing APs of the external wireless network based on their respective RSSIs to arrive at a filtered set of competing APs; and augmenting a spatial reuse group (SRG) of the deployed AP to include the APs in the filtered set of competing APs in the SRG.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 12, 2020
    Inventors: GAURAV PATWARDHAN, SACHIN GANU, ELDAD PERAHIA, DONGWOON HAHN
  • Publication number: 20200077335
    Abstract: Systems and methods for wake up signaling in 802.11 DFS channels include enabling a primary connectivity radio of a device responsive to a wake up radio of the device receiving a composite radio signal transmitted by an access point in an 802.11 Dynamic Frequency Selection (DFS) channel, the composite radio signal comprising a wake up radio signal and a time-continuous signal, the time-continuous signal being substantially adjacent in frequency, but not necessarily contiguous in frequency, to the wake up radio signal; and exchanging data with the access point through the primary connectivity radio after the primary connectivity radio is enabled. The wake up radio signal may be an IEEE 802.11ba signal disposed in a center frequency band of a IEEE 802.11ax Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU). The time-continuous signal may be real or emulated data traffic disposed in at least one IEEE 802.11ax resource unit.
    Type: Application
    Filed: August 31, 2018
    Publication date: March 5, 2020
    Inventors: Eldad Perahia, Eric Johnson
  • Publication number: 20200059932
    Abstract: Systems and methods for assigning default an alternative BSS colors in a wireless local area network (WLAN) including a network graph representing radio neighbors include assigning a frequency range and EIRP for each radio represented in the network graph; generating a subgraph of radios operating at the same frequency range; for the subgraph, determining a minimum number of basic service set (BSS) colors required to BSS color the subgraph without BSS color conflict; based on the minimum number of BSS colors, assigning a default BSS color to each radio in the subgraph to avoid BSS color conflict among radios in the subgraph; based on remaining BSS colors, assigning one or more alternative BSS colors to each radio in the subgraph.
    Type: Application
    Filed: August 15, 2019
    Publication date: February 20, 2020
    Inventors: Dongwoon Hahn, Sachin Ganu, Eldad Perahia, Gaurav Patwardhan
  • Patent number: 10568138
    Abstract: An example computing device, comprising: a processing resource; and a memory resource storing machine readable instructions to cause the processing resource to: determine when known pattern indicates a pattern of a Bluetooth low energy (BLE) signal in relation to a channel to be occupied by the BLE signal; and adjust a channel for a wireless local area network (WLAN) transmission based on the determination.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: February 18, 2020
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Gaurav Patwardhan, Ankur Kamthe, Eldad Perahia
  • Publication number: 20200053634
    Abstract: Systems and methods for assigning BSS colors in a deployed wireless area network (WLAN) include identifying a plurality of APs of an external wireless network operating on a same channel as a deployed AP of a deployed wireless network; selecting as a subset of the plurality of APs of the external wireless network those APs of the external wireless network based on expected interference; grouping the APs of the subset of the plurality of APs by a basic service set (BSS) color used by each of the plurality of identified APs of the external wireless network to form AP BSS color groups; calculating an airtime utilization for each AP color group; and selecting a BSS color using the calculated airtime utilization and assigning the selected BSS color for use by the deployed AP of the deployed wireless network.
    Type: Application
    Filed: August 8, 2018
    Publication date: February 13, 2020
    Inventors: Gaurav Patwardhan, Sachin Ganu, Eldad Perahia, Dongwoon Hahn
  • Publication number: 20200037183
    Abstract: Systems and methods for calculating uplink pathloss in a wireless local area network are provided. Uplink pathloss between an access point and client device operating in the wireless local area network can be calculated based on determining an effective maximum transmit power. Based on the effective maximum transmit power, and known uplink power headroom, a current transmit power of the client device can be determined. Based on the current transmit power of the client device, uplink pathloss can be determined. If the operating conditions and/or characteristics of the client device and/or wireless local area network change, the uplink pathloss may be re-evaluated.
    Type: Application
    Filed: July 26, 2018
    Publication date: January 30, 2020
    Inventors: Sachin Ganu, Gaurav Patwardhan, Eldad Perahia, Dongwoon Hahn
  • Publication number: 20200037337
    Abstract: Systems and methods for grouping client devices for uplink multi-user transmission are provided. Client device groups may be determined based on at least one of traffic compatibility/similarity, client device class compatibility/similarity, and uplink pathloss similarity. A target received signal strength measured by an AP with which client devices in the client device groups communicate and an appropriate modulation coding scheme rate to be used by the client devices may be determined and set for the client devices. The modulation coding scheme rate can be adjusted based on feedback regarding successful data packet reception at the AP from each of the client devices.
    Type: Application
    Filed: July 26, 2018
    Publication date: January 30, 2020
    Inventors: Gaurav Patwardhan, Sachin Ganu, Eldad Perahia, Dongwoon Hahn
  • Patent number: 10536945
    Abstract: In some examples, a non-transitory machine-readable medium can include instructions executable by a processing resource of a network device to: receive a first message on a communication band from a first wireless client device; determine a capability complying with a particular wireless specification of the first wireless client device based on information in the first message; split communication channels on the communication band into a first communication channel group and a second communication channel group; and operate the first communication channel group in accordance with the particular wireless specification and the second communication channel group in accordance with other wireless specifications.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: January 14, 2020
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Shahnawaz Siraj, Sachin Ganu, Eldad Perahia, Charles Lukaszewski
  • Patent number: 10536903
    Abstract: Logic may comprise hardware and/or code to select a narrow band from a wider channel bandwidth. Logic of communications between devices may select, e.g., a 1 or 2 MHz sub-channel from a wider channel bandwidth such as 4, 8, and 16 MHz and transmit packets on the selected 1 or 2 MHz channel. For instance, a first device may comprise an access point and a second device may comprise a station such as a low power sensor or a meter that may, e.g., operate on battery power. Logic of the devices may facilitate a frequency selective transmission scheme. Logic of the access point may transmit sounding packets or control frames across the sub-channels of the wide bandwidth channel, facilitating selection by the stations of a sub-channel and subsequent communications on the sub-channel between the access point and the station.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: January 14, 2020
    Assignee: Intel Corporation
    Inventors: Minyoung Park, Thomas J. Kenney, Eldad Perahia, Shahrnaz Azizi, Adrian P. Stephens
  • Publication number: 20190335486
    Abstract: Methods for assigning effective isotopic radiated power to an access point in a wireless network are provided. In one aspect, a method includes determining weights for neighboring access points in a wireless network based on channel frequency and basic service set color assignments. For a particular access point, a first path loss based on the determined weights and a second path loss based on the neighboring access points are calculated. First and second effective isotopic radiated power values are calculated based on the respective first and second path losses. The effective isotopic radiated power of the particular access point is adjusted based on the lower of the first and second calculated effective isotopic radiated power values. Systems and machine-readable media are also provided.
    Type: Application
    Filed: April 30, 2018
    Publication date: October 31, 2019
    Inventors: Gaurav Patwardhan, Sachin Ganu, Eldad Perahia, Dongwoon Hahn
  • Patent number: 10425893
    Abstract: Example systems, methods, and devices for channel access in dense wireless networks are discussed. More specifically, methods may include transmitting one or more trigger frames from an access point to one or more communication stations, the one or more trigger frames comprising a plurality of components, the plurality of components indicating whether trigger frames within a beacon interval are scheduled in a periodic or aperiodic manner, and if periodic trigger frames are scheduled, then indicating a countdown to the next trigger frame, and if aperiodic trigger frames are scheduled, then indicating the time to the next trigger frame scheduled by the access point. Methods, apparatus, and systems described herein can be applied to 802.11ax or any other wireless standard.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 24, 2019
    Assignee: Intel IP Corporation
    Inventors: Chittabrata Ghosh, Chen Kojokaro, Eldad Perahia, Shahrnaz Azizi
  • Patent number: 10397928
    Abstract: Systems and methods for assigning default an alternative BSS colors in a wireless local area network (WLAN) including a network graph representing radio neighbors include assigning a frequency range and EIRP for each radio represented in the network graph; generating a subgraph of radios operating at the same frequency range; for the subgraph, determining a minimum number of basic service set (BSS) colors required to BSS color the subgraph without BSS color conflict; based on the minimum number of BSS colors, assigning a default BSS color to each radio in the subgraph to avoid BSS color conflict among radios in the subgraph; based on remaining BSS colors, assigning one or more alternative BSS colors to each radio in the subgraph.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: August 27, 2019
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Dongwoon Hahn, Sachin Ganu, Eldad Perahia, Gaurav Patwardhan