Patents by Inventor Pooya Monajemi

Pooya Monajemi 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: 11856429
    Abstract: Dynamic spectrum access mode based on station capabilities is provided by categorizing functionalities of Access Points (APs) and mobile stations (STA) in a wireless network; identifying interference induced by external signaling devices on channels in the wireless network; calculating an impact factor of the interference based on proximity of the external signaling devices to the wireless network, a pattern of the external signaling devices, and an extent of overlap with frequencies used by the external signaling devices and the wireless network; and in response to identifying a given STA that is paired with a given AP in the wireless network, wherein the given STA and the given AP are both categorized as being capable of both multilink communications and preamble puncturing, assigning network resources for the given STA to communicate with the given AP via one of multilink communications or preamble puncturing based on the impact factor of the interference.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: December 26, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Vishal S. Desai, Pooya Monajemi, Young Il Choi, Santosh B. Kulkarni
  • Patent number: 11855914
    Abstract: Embodiments herein describe a group of APs that uses a shared radar cache to select a new channel after vacating a current channel when performing dynamic frequency selection (DFS). The group of APs can set aside memory to store status information about the DFS channels in the frequency band. For example, when one AP detects a radar event (and has to vacate a DFS channel), the AP updates an entry for that channel in the shared radar cache. The APs can also query the cache to determine a new channel after vacating its current channel. That is, the shared radar cache may store the most recent radar events occurring in a channel. In this manner, the APs can select a new channel that has little or no recent radar events, which reduces the likelihood the AP will have to vacate the new channel.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: December 26, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Santosh B. Kulkarni, Vishal S. Desai, Pooya Monajemi, Young Il Choi, Matthew A. Silverman
  • Patent number: 11838862
    Abstract: In one embodiment, a first wireless access point (AP) of a first basic service set (BSS) receives, from a second wireless AP of a second BSS, data indicative of an 802.11-based target wake time (TWT) schedule of a client of the second BSS. The first wireless AP identifies, from the receive data, a scheduled communication time of the client of the second BSS in the TWT schedule. The first wireless AP generates an 802.11-based TWT schedule for a client of the first BSS that avoids the scheduled communication time of the client of the second BSS. The first wireless AP sends the generated 802.11-based TWT schedule to the client of the first BSS, wherein the sent TWT schedule causes the client of the first BSS to wake from sleep at a scheduled wake time.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: December 5, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Pooya Monajemi, Gautam Bhanage, David Kloper, Young Il Choi, Vishal Satyendra Desai, Santosh Bahaji Kulkarni
  • Publication number: 20230388350
    Abstract: A device includes a memory and a hardware processor communicatively coupled to the memory. The hardware processor determines that a computing device communicatively coupled to an access point performed an action with respect to the access point and in response to determining that the action causes a deviation from a multi-user uplink policy of the access point, transmits a disciplinary message to the computing device.
    Type: Application
    Filed: July 28, 2023
    Publication date: November 30, 2023
    Inventors: Malcolm M. SMITH, Jerome HENRY, Pooya MONAJEMI, Brian D. HART, David S. KLOPER
  • Publication number: 20230379064
    Abstract: An access point allocates resource units within a first channel to mitigate interference from an adjacent second channel. The access point obtains a measure of signal strength corresponding to each wireless device attached to an access point, and assigns, for each wireless device, resource units with a first frequency band of the first channel to mitigate interference with a second frequency band of a second channel adjacent to the first channel. An assignment between a set of resource units and a particular wireless device is based on the measure of signal strength corresponding to the particular wireless device. The access point communicates with the wireless devices on the resource units.
    Type: Application
    Filed: August 3, 2023
    Publication date: November 23, 2023
    Inventors: Matthew Aaron Silverman, Pooya Monajemi, Vishal Satyendra Desai, John Martin Blosco
  • Patent number: 11817949
    Abstract: An access point in a wireless network communicates wirelessly with one or more client devices over a channel that includes a plurality of subchannels. Radar is detected on a first subchannel of the plurality of subchannels. It is determined to puncture the first subchannel, based on the detecting the radar on the first subchannel and based on one or more puncturing factors. The first subchannel is punctured, the puncturing comprising muting one or more subcarriers on the first subchannel.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: November 14, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Benjamin Jacob Cizdziel, Brian Donald Hart, Pooya Monajemi, Vishal Satyendra Desai
  • Patent number: 11799912
    Abstract: A device includes a memory and a hardware processor communicatively coupled to the memory. The hardware processor determines that a computing device communicatively coupled to an access point performed an action with respect to the access point and in response to determining that the action causes a deviation from a multi-user uplink policy of the access point, transmits a disciplinary message to the computing device.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: October 24, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Malcolm M. Smith, Jerome Henry, Pooya Monajemi, Brian D. Hart, David S. Kloper
  • Patent number: 11791868
    Abstract: An operator may enhance radio resource management with beamwidth selection and beamsteering by receiving coverage data for a plurality of access points (APs) in a wireless network; calculating an antenna arrangement for the plurality of APs based on the coverage data, wherein the antenna arrangement covers a designated area in an environment; and configuring each AP of the plurality of aps according to the antenna arrangement by: setting a steering angle for adjustable antennas of the plurality of APs, setting a transmission power for the adjustable antennas; and setting a beamwidth of the adjustable antennas.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: October 17, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Santosh B. Kulkarni, Vishal S. Desai, Pooya Monajemi, Young Il Choi
  • Patent number: 11791554
    Abstract: Flexible radio assignment with beamsteering antennas is provided by controlling a plurality of Access Points (APs) including steerable antennas to each transmit a first plurality of discovery frames at a first beamwidth; controlling the plurality of APs to steer the steerable antennas at a second beamwidth, less than the first beamwidth, to a plurality of steering angles; controlling the plurality of APs to each transmit a second plurality of discovery frames at each steering angle of the plurality of steering angles; determining an overlap in radio coverage among the plurality of APs based on the first plurality and the second plurality of discovery frames; and identifying redundant radios based on the overlap in radio coverage; and reassigning the redundant radios from use for client transmissions to a secondary role.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: October 17, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Santosh B. Kulkarni, Vishal S. Desai, Pooya Monajemi, Young Il Choi
  • Publication number: 20230328717
    Abstract: A method includes determining whether a first access point of a plurality of access points and a second access point of the plurality of access points should communicate simultaneously over a shared channel in a first network and in response to determining that one of the plurality of access points won contention of a transmission opportunity for the shared channel, dividing the transmission opportunity into a plurality of time slots. The method also includes scheduling transmissions of the first and second access points into the plurality of time slots according to the determination whether the first and second access points should communicate simultaneously over the shared channel and communicating, to the second access point and over a wired network or a second network different from the first network, an indication of whether the second access point should communicate during a first time slot of the plurality of time slots.
    Type: Application
    Filed: June 9, 2023
    Publication date: October 12, 2023
    Inventors: Brian D. HART, Malcolm M. SMITH, Sanjay K. KATABATHUNI, Pooya MONAJEMI, Venkataprasad CHIRREDDY
  • Patent number: 11784724
    Abstract: An access point allocates resource units within a first channel to mitigate interference from an adjacent second channel. The access point obtains a measure of signal strength corresponding to each wireless device attached to an access point, and assigns, for each wireless device, resource units with a first frequency band of the first channel to mitigate interference with a second frequency band of a second channel adjacent to the first channel. An assignment between a set of resource units and a particular wireless device is based on the measure of signal strength corresponding to the particular wireless device. The access point communicates with the wireless devices on the resource units.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: October 10, 2023
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Matthew Aaron Silverman, Pooya Monajemi, Vishal Satyendra Desai, John Martin Blosco
  • Patent number: 11777699
    Abstract: A wireless access point device is full-duplex capable and serves wireless communication for at least first and second wireless client devices. The wireless access point device sends to the first wireless client device a trigger frame that causes the first wireless client device to send an uplink transmission to the wireless access point after a first time interval. The wireless access point device waits a second time interval after the first wireless client is expected to begin sending the uplink transmission. The wireless access point device receives the uplink transmission from the first wireless client device. After the second time interval, and while receiving the uplink transmission from the first wireless client device, the wireless access point device sends to the second wireless client device a downlink transmission that overlaps at least partially in frequency and time with the uplink transmission from the first wireless client device.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: October 3, 2023
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Pooya Monajemi, Brian Hart, Matthew Aaron Silverman, Gautam D. Bhanage
  • Patent number: 11770740
    Abstract: In one embodiment, a technique for automatic classification and enforcement of low-bandwidth 20 MHz-only Internet of Things (IoT) devices is provided. An access point in communication with a plurality of devices may classify one or more client devices of the plurality as low-bandwidth or 20 MHz-only devices. The access point may allocate a subset of resource units (RUs) in a channel (e.g., a 20 MHz-wide channel) to the one or more client devices. The access point may then exchange data with the one or more client devices using the subset of RUs.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: September 26, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Vishal Satyendra Desai, Santosh Babaji Kulkarni, Young Il Choi, Pooya Monajemi
  • Patent number: 11743775
    Abstract: Systems and methods herein can analyze a bandwidth restriction in a communication stream of an Access Point (AP). Then, based on the bandwidth restriction, the AP can determine a lower amount of wireless bandwidth to provide to station wireless communicating to the AP. The AP can then modify a bandwidth allocation assigned to the station based on the lower amount of wireless bandwidth.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: August 29, 2023
    Assignee: Cisco Technology, Inc
    Inventors: Vishal Satyendra Desai, Benjamin Jacob Cizdziel, Pooya Monajemi, Young Il Choi, Santosh Babaji Kulkarni
  • Patent number: 11729762
    Abstract: A method includes determining whether a first access point of a plurality of access points and a second access point of the plurality of access points should communicate simultaneously over a shared channel in a first network and in response to determining that one of the plurality of access points won contention of a transmission opportunity for the shared channel, dividing the transmission opportunity into a plurality of time slots. The method also includes scheduling transmissions of the first and second access points into the plurality of time slots according to the determination whether the first and second access points should communicate simultaneously over the shared channel and communicating, to the second access point and over a wired network or a second network different from the first network, an indication of whether the second access point should communicate during a first time slot of the plurality of time slots.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: August 15, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Brian D. Hart, Malcolm M. Smith, Sanjay K. Katabathuni, Pooya Monajemi, Venkataprasad Chirreddy
  • Patent number: 11726173
    Abstract: Embodiments for securing fine timing measurement (FTM) communications are described. FTM communications include FTM frames sent and received from an initiating station (ISTA) and a responding station (RSTA). The RSTA records a plurality of parameters associated with the FTM frames and uses the plurality of parameters to learn and identify a device profile for the ISTA. The device profile is used to determine a behavior filter for the FTM from the ISTA and the RSTA filters FTM traffic according to the behavior filter to prevent malicious attacks in the FTM communications.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: August 15, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Akram I. Sheriff, Jerome Henry, Robert E. Barton, Pooya Monajemi
  • Patent number: 11722931
    Abstract: Mitigation of active link alternation by multi-link devices (MLDs) may be provided. First, at least first and second links may be established between an Access Point (AP) MLD and an associated MLD client. The first link may be active, while the second link may be inactive. A set of traffic load data associated with the links may be collected before and after transmission of a Basic Service Set (BSS) load report to the MLD client. The report may include a traffic load on the second link prior to transmission, where the second link is less loaded than the first link. Based on the collected traffic load data, an active link alternation from the first to the second link by the MLD client responsive to receiving the report may be detected. One or more methods for BSS load report management may then be applied to mitigate future active link alternation.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: August 8, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Pooya Monajemi, Vishal Satyendra Desai, Santosh Babaji Kulkarni
  • Patent number: 11716632
    Abstract: Coordinated Frequency Division Multiplexing (FDM) Transmission Opportunity (TXOP) sharing may be provided by determining that at least two Access Points (APs) of a wireless network support coordinated FDM TXOP sharing. In response to the determination that the at least two APs support coordinated FDM TXOP sharing, at least one of: a first bias is applied to a channel assignment algorithm to promote an assignment of overlapping channels of the at least two APs, and a second bias is applied to the channel assignment algorithm to promote an assignment of adjacent channels of the at least two APs. Next, channels are assigned to the at least two APs based on an output of the channel assignment algorithm.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: August 1, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Benjamin Jacob Cizdziel, Pooya Monajemi, Santosh Babaji Kulkarni, Vishal Satyendra Desai
  • Publication number: 20230217258
    Abstract: Dynamic configuration of Overlapping Basic Set Service Preamble Detect (OBSS/PD) parameters for an Access Point (AP) may be provided. First, a plurality of stations within a Spatial Reuse (SR) range of the AP may be determined. Next, Signal to Interference plus Noise Ratio (SINR) calculations associated with the plurality of stations may be performed to determine an SINR impact on the plurality of stations if the AP performs an SR transmission given OBSS/PD parameters currently configured for the AP. Then, based on the SINR calculations, the OBSS/PD parameters for the AP may be dynamically adjusted.
    Type: Application
    Filed: March 15, 2023
    Publication date: July 6, 2023
    Applicant: Cisco Technology, Inc.
    Inventors: Pooya MONAJEMI, Benjamin Jacob CIZDZIEL, Vishal Satyendra DESAI
  • Patent number: 11683852
    Abstract: Techniques are disclosed for determining one or more radio resource management (RRM) input parameters. The one or more RRM input parameters are determined based on a line of sight (LOS) estimate between two wireless stations (STAs). A plurality of RRM values are generated based on the one or more RRM input parameters. A wireless connection is established between a first wireless access point (AP) and a first STA using the RRM values.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: June 20, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Pooya Monajemi, Santosh B. Kulkarni, Benjamin J. Cizdziel, Vishal S. Desai, Young Il Choi