Patents by Inventor Nima Ahmadvand

Nima Ahmadvand 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: 11006276
    Abstract: A method and corresponding apparatus for providing a cellular subscriber with access to a WLAN are provided. They involve identifying a multimode mobile terminal, which corresponds to the subscriber and the WLAN from an access request. Based on the identification, the WLAN is authorized to provide the mobile terminal with access. The mobile terminal is then provided with access to the WLAN as a cellular subscriber and enables interoperability between the two networks. For example, the subscriber does not have to supply a credit card to pay for WLAN access directly. Instead, the subscriber pays a cellular network provider, and, in turn, the cellular network provider pays a WLAN provider for the access.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: May 11, 2021
    Assignee: Conversant Intellectual Property Management Inc.
    Inventors: Nima Ahmadvand, Hanwu Hu
  • Patent number: 10944612
    Abstract: A method includes receiving an Orthogonal Frequency Division Multiplexing (OFDM) signal comprising a plurality of Doppler-shifted OFDM subcarriers and determining frequency-shift data corresponding to the plurality of Doppler-shifted OFDM subcarriers. The determining includes calculating frequency-shift data for each Doppler-shifted OFDM subcarrier of the plurality of Doppler-shifted OFDM subcarriers, thereby yielding a plurality of subcarrier-specific frequency-shift values and calculating an average of the plurality of subcarrier-specific frequency-shift values. The method further includes frequency shifting each subcarrier of the plurality of Doppler-shifted OFDM subcarriers by a value based on the determined frequency-shift data multiplied by a frequency index of each subcarrier.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: March 9, 2021
    Assignee: Conversant Intellectual Property Management Inc.
    Inventors: Hanwu Hu, Nima Ahmadvand
  • Patent number: 10849063
    Abstract: In one embodiment, a method is performed by a wireless station. The method includes receiving from an access point (AP) a request for measurement of at least one link-quality parameter. The method further includes measuring the at least one link-quality parameter to generate a link-quality-parameter measurement. The method also includes determining, for the wireless station, an appropriate wireless-station category of a plurality of wireless-station categories. The plurality of wireless-station categories are defined based at least in part on the link-quality-parameter measurement. In addition, the method includes communicating with the AP in accordance with a transmission schedule corresponding to the plurality of wireless-station categories.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: November 24, 2020
    Assignee: Conversant Intellectual Property Management Inc.
    Inventors: Xuejun Lu, Nima Ahmadvand
  • Publication number: 20200136879
    Abstract: A method includes receiving an Orthogonal Frequency Division Multiplexing (OFDM) signal comprising a plurality of Doppler-shifted OFDM subcarriers and determining frequency-shift data corresponding to the plurality of Doppler-shifted OFDM subcarriers. The determining includes calculating frequency-shift data for each Doppler-shifted OFDM subcarrier of the plurality of Doppler-shifted OFDM subcarriers, thereby yielding a plurality of subcarrier-specific frequency-shift values and calculating an average of the plurality of subcarrier-specific frequency-shift values. The method further includes frequency shifting each subcarrier of the plurality of Doppler-shifted OFDM subcarriers by a value based on the determined frequency-shift data multiplied by a frequency index of each subcarrier.
    Type: Application
    Filed: October 30, 2019
    Publication date: April 30, 2020
    Inventors: Hanwu HU, Nima AHMADVAND
  • Publication number: 20200128478
    Abstract: In one embodiment, a method is performed by a wireless station. The method includes receiving from an access point (AP) a request for measurement of at least one link-quality parameter. The method further includes measuring the at least one link-quality parameter to generate a link-quality-parameter measurement. The method also includes determining, for the wireless station, an appropriate wireless-station category of a plurality of wireless-station categories. The plurality of wireless-station categories are defined based at least in part on the link-quality-parameter measurement. In addition, the method includes communicating with the AP in accordance with a transmission schedule corresponding to the plurality of wireless-station categories.
    Type: Application
    Filed: June 3, 2019
    Publication date: April 23, 2020
    Inventors: Xuejun LU, Nima AHMADVAND
  • Patent number: 10498578
    Abstract: A method includes receiving an Orthogonal Frequency Division Multiplexing (OFDM) signal comprising a plurality of Doppler-shifted OFDM subcarriers and determining frequency-shift data corresponding to the plurality of Doppler-shifted OFDM subcarriers. The determining includes calculating frequency-shift data for each Doppler-shifted OFDM subcarrier of the plurality of Doppler-shifted OFDM subcarriers, thereby yielding a plurality of subcarrier-specific frequency-shift values and calculating an average of the plurality of subcarrier-specific frequency-shift values. The method further includes frequency shifting each subcarrier of the plurality of Doppler-shifted OFDM subcarriers by a value based on the determined frequency-shift data multiplied by a frequency index of each subcarrier.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: December 3, 2019
    Assignee: Conversant Intellectual Property Management Inc.
    Inventors: Hanwu Hu, Nima Ahmadvand
  • Patent number: 10368307
    Abstract: In one embodiment, a method is performed by a wireless station. The method includes receiving from an access point (AP) a request for measurement of at least one link-quality parameter. The method further includes measuring the at least one link-quality parameter to generate a link-quality-parameter measurement. The method also includes determining, for the wireless station, an appropriate wireless-station category of a plurality of wireless-station categories. The plurality of wireless-station categories are defined based at least in part on the link-quality-parameter measurement. In addition, the method includes communicating with the AP in accordance with a transmission schedule corresponding to the plurality of wireless-station categories.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: July 30, 2019
    Assignee: Conversant Intellectual Property Management Inc.
    Inventors: Xuejun Lu, Nima Ahmadvand
  • Publication number: 20190013987
    Abstract: A method includes receiving an Orthogonal Frequency Division Multiplexing (OFDM) signal comprising a plurality of Doppler-shifted OFDM subcarriers and determining frequency-shift data corresponding to the plurality of Doppler-shifted OFDM subcarriers. The determining includes calculating frequency-shift data for each Doppler-shifted OFDM subcarrier of the plurality of Doppler-shifted OFDM subcarriers, thereby yielding a plurality of subcarrier-specific frequency-shift values and calculating an average of the plurality of subcarrier-specific frequency-shift values. The method further includes frequency shifting each subcarrier of the plurality of Doppler-shifted OFDM subcarriers by a value based on the determined frequency-shift data multiplied by a frequency index of each subcarrier.
    Type: Application
    Filed: August 30, 2018
    Publication date: January 10, 2019
    Inventors: Hanwu HU, Nima AHMADVAND
  • Publication number: 20180359701
    Abstract: In one embodiment, a method is performed by a wireless station. The method includes receiving from an access point (AP) a request for measurement of at least one link-quality parameter. The method further includes measuring the at least one link-quality parameter to generate a link-quality-parameter measurement. The method also includes determining, for the wireless station, an appropriate wireless-station category of a plurality of wireless-station categories. The plurality of wireless-station categories are defined based at least in part on the link-quality-parameter measurement. In addition, the method includes communicating with the AP in accordance with a transmission schedule corresponding to the plurality of wireless-station categories.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 13, 2018
    Inventors: Xuejun LU, Nima AHMADVAND
  • Patent number: 10091044
    Abstract: A method includes receiving an Orthogonal Frequency Division Multiplexing (OFDM) signal comprising a plurality of Doppler-shifted OFDM subcarriers and determining frequency-shift data corresponding to the plurality of Doppler-shifted OFDM subcarriers. The determining includes calculating frequency-shift data for each Doppler-shifted OFDM subcarrier of the plurality of Doppler-shifted OFDM subcarriers, thereby yielding a plurality of subcarrier-specific frequency-shift values and calculating an average of the plurality of subcarrier-specific frequency-shift values. The method further includes frequency shifting each subcarrier of the plurality of Doppler-shifted OFDM subcarriers by a value based on the determined frequency-shift data multiplied by a frequency index of each subcarrier.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: October 2, 2018
    Assignee: CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC.
    Inventors: Hanwu Hu, Nima Ahmadvand
  • Patent number: 10080188
    Abstract: In one embodiment, a method is performed by a wireless station. The method includes receiving from an access point (AP) a request for measurement of at least one link-quality parameter. The method further includes measuring the at least one link-quality parameter to generate a link-quality-parameter measurement. The method also includes determining, for the wireless station, an appropriate wireless-station category of a plurality of wireless-station categories. The plurality of wireless-station categories are defined based at least in part on the link-quality-parameter measurement. In addition, the method includes communicating with the AP in accordance with a transmission schedule corresponding to the plurality of wireless-station categories.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: September 18, 2018
    Assignee: Conversant Intellectual Property Management Inc.
    Inventors: Xuejun Lu, Nima Ahmadvand
  • Publication number: 20160020936
    Abstract: A method includes receiving an Orthogonal Frequency Division Multiplexing (OFDM) signal comprising a plurality of Doppler-shifted OFDM subcarriers and determining frequency-shift data corresponding to the plurality of Doppler-shifted OFDM subcarriers. The determining includes calculating frequency-shift data for each Doppler-shifted OFDM subcarrier of the plurality of Doppler-shifted OFDM subcarriers, thereby yielding a plurality of subcarrier-specific frequency-shift values and calculating an average of the plurality of subcarrier-specific frequency-shift values. The method further includes frequency shifting each subcarrier of the plurality of Doppler-shifted OFDM subcarriers by a value based on the determined frequency-shift data multiplied by a frequency index of each subcarrier.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 21, 2016
    Applicant: CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC.
    Inventors: Hanwu HU, Nima AHMADVAND
  • Patent number: 9237518
    Abstract: Power saving in wireless networks is disclosed. A wireless network entity that includes a module to enable a reduction in power consumption in that wireless network entity is also disclosed. The module is configured to determine that a selected wireless station of one or more wireless stations associated with the wireless network entity in a same wireless network will transmit system control information (including synchronization information and service identification information) that is normally transmitted by the wireless network entity.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: January 12, 2016
    Assignee: Conversant Intellectual Property Management Inc.
    Inventors: Nima Ahmadvand, Xuejun Lu, Hanwu Hu, Mouhamadou Lamine Sylla
  • Publication number: 20150245236
    Abstract: In one embodiment, a method is performed by a wireless station. The method includes receiving from an access point (AP) a request for measurement of at least one link-quality parameter. The method further includes measuring the at least one link-quality parameter to generate a link-quality-parameter measurement. The method also includes determining, for the wireless station, an appropriate wireless-station category of a plurality of wireless-station categories. The plurality of wireless-station categories are defined based at least in part on the link-quality-parameter measurement. In addition, the method includes communicating with the AP in accordance with a transmission schedule corresponding to the plurality of wireless-station categories.
    Type: Application
    Filed: February 20, 2015
    Publication date: August 27, 2015
    Inventors: Xuejun LU, Nima AHMADVAND
  • Publication number: 20150078239
    Abstract: Power saving in wireless networks is disclosed. A wireless network entity that includes a module to enable a reduction in power consumption in that wireless network entity is also disclosed. The module is configured to determine that a selected wireless station of one or more wireless stations associated with the wireless network entity in a same wireless network will transmit system control information (including synchronization information and service identification information) that is normally transmitted by the wireless network entity.
    Type: Application
    Filed: November 24, 2014
    Publication date: March 19, 2015
    Inventors: Nima Ahmadvand, Xuejun Lu, Hanwu Hu, Mouhamadou Lamine Sylla
  • Patent number: 8923180
    Abstract: Power saving in wireless networks is disclosed. A wireless network entity that includes a module to enable a reduction in power consumption in that wireless network entity is also disclosed. The module is configured to determine that a selected wireless station of one or more wireless stations associated with the wireless network entity in a same wireless network will transmit system control information (including synchronization information and service identification information) that is normally transmitted by the wireless network entity.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: December 30, 2014
    Assignee: Conversant Intellectual Property Management Incorporated
    Inventors: Nima Ahmadvand, Xuejun Lu, Hanwu Hu, Mouhamadou Lamine Sylla
  • Publication number: 20140204814
    Abstract: Power saving in wireless networks is disclosed. A wireless network entity that includes a module to enable a reduction in power consumption in that wireless network entity is also disclosed. The module is configured to determine that a selected wireless station of one or more wireless stations associated with the wireless network entity in a same wireless network will transmit system control information (including synchronization information and service identification information) that is normally transmitted by the wireless network entity.
    Type: Application
    Filed: January 23, 2013
    Publication date: July 24, 2014
    Applicant: Conversant Intellectual Property Management Incorporated
    Inventors: Nima Ahmadvand, Xuejun Lu, Hanwu Hu, Mouhamadou Lamine Sylla
  • Publication number: 20140092891
    Abstract: A method and corresponding apparatus for providing a cellular subscriber with access to a WLAN are provided. They involve identifying a multimode mobile terminal, which corresponds to the subscriber and the WLAN from an access request. Based on the identification, the WLAN is authorized to provide the mobile terminal with access. The mobile terminal is then provided with access to the WLAN as a cellular subscriber and enables interoperability between the two networks. For example, the subscriber does not have to supply a credit card to pay for WLAN access directly. Instead, the subscriber pays a cellular network provider, and, in turn, the cellular network provider pays a WLAN provider for the access.
    Type: Application
    Filed: December 5, 2013
    Publication date: April 3, 2014
    Applicant: MOSAID Technologies Incorporated
    Inventors: Nima Ahmadvand, Hanwu Hu
  • Patent number: 8620270
    Abstract: A method and corresponding apparatus for providing a cellular subscriber with access to a WLAN are provided. They involve identifying a multimode mobile terminal, which corresponds to the subscriber and the WLAN from an access request. Based on the identification, the WLAN is authorized to provide the mobile terminal with access. The mobile terminal is then provided with access to the WLAN as a cellular subscriber and enables interoperability between the two networks. For example, the subscriber does not have to supply a credit card to pay for WLAN access directly. Instead, the subscriber pays a cellular network provider, and, in turn, the cellular network provider pays a WLAN provider for the access.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: December 31, 2013
    Assignee: Mosaid Technologies Incorporated
    Inventors: Nima Ahmadvand, Hanwu Hu
  • Publication number: 20110081890
    Abstract: A method and corresponding apparatus for providing a cellular subscriber with access to a WLAN are provided. They involve identifying a multimode mobile terminal, which corresponds to the subscriber and the WLAN from an access request. Based on the identification, the WLAN is authorized to provide the mobile terminal with access. The mobile terminal is then provided with access to the WLAN as a cellular subscriber and enables interoperability between the two networks. For example, the subscriber does not have to supply a credit card to pay for WLAN access directly. Instead, the subscriber pays a cellular network provider, and, in turn, the cellular network provider pays a WLAN provider for the access.
    Type: Application
    Filed: June 15, 2010
    Publication date: April 7, 2011
    Inventors: Nima Ahmadvand, Hanwu Hu