Patents by Inventor Dipesh H. Shah

Dipesh H. Shah 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: 8971240
    Abstract: A method and apparatus for performing radio link timer (RLT) management in a wireless network. The method and apparatus examine the frame error rates (FERS) associated with decoded speech or data frames and determine how many speech or data frames are unacceptable. If the number of speech or data frames that is unacceptable exceeds a preset threshold value, a determination is made that the call should be released. This process is performed in both the uplink and downlink directions and determinations as to whether the call should be released are made by the mobile station (MS), the base station system (BSS) or mobile switching center (MSC) for the downlink direction and by the base station system (BSS) for the uplink direction. If a determination is made that the number of unacceptable speech or data frames exceeds the preset threshold, the call is released.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: March 3, 2015
    Assignee: AT&T Mobility II LLC
    Inventor: Dipesh H. Shah
  • Patent number: 8755789
    Abstract: A method and system for determining service metrics in a communications network are disclosed. The method measures a speed of a wireless endpoint device in a call, and collects call performance data. The method deems the call as being associated with a user who is mobile if the speed of the wireless endpoint device exceeds a speed threshold at any time during the call, or as being associated with a user who is stationary if the speed of the wireless endpoint device does not exceed or is equal to the speed threshold over a call duration. The method adds the call performance data to an aggregate service metrics for mobile users if the call is deemed as being associated with a user who is mobile, or to an aggregate service metrics for stationary users if the call is deemed as being associated with a user who is stationary.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: June 17, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: Dipesh H. Shah, Kaushik D. Gohel
  • Publication number: 20130281083
    Abstract: A method and system for determining service metrics in a communications network are disclosed. The method measures a speed of a wireless endpoint device in a call, and collects call performance data. The method deems the call as being associated with a user who is mobile if the speed of the wireless endpoint device exceeds a speed threshold at any time during the call, or as being associated with a user who is stationary if the speed of the wireless endpoint device does not exceed or is equal to the speed threshold over a call duration. The method adds the call performance data to an aggregate service metrics for mobile users if the call is deemed as being associated with a user who is mobile, or to an aggregate service metrics for stationary users if the call is deemed as being associated with a user who is stationary.
    Type: Application
    Filed: June 24, 2013
    Publication date: October 24, 2013
    Inventors: DIPESH H. SHAH, Kaushik D. Gohel
  • Patent number: 8472944
    Abstract: A method and system for determining service metrics in a communications network are disclosed. The method measures a speed of a wireless endpoint device in an ongoing call, and collects call performance data. The method deems the ongoing call as being associated with a user who is mobile if the speed of the wireless endpoint device exceeds a speed threshold at any time during the ongoing call, or as being associated with a user who is stationary if the speed of the wireless endpoint device does not exceed or is equal to the speed threshold over a call duration. The method adds the call performance data to an aggregate service metrics for mobile users if the ongoing call is deemed as being associated with a user who is mobile, or to an aggregate service metrics for stationary users if the ongoing call is deemed as being associated with a user who is stationary.
    Type: Grant
    Filed: December 13, 2009
    Date of Patent: June 25, 2013
    Assignee: AT&T Mobility II, LLC
    Inventors: Dipesh H. Shah, Kaushik D. Gohel
  • Patent number: 8036665
    Abstract: Communication handoff in a radio telecommunications network in which a quality measurement between a mobile wireless device and a first fixed transceiving entity in the radio telecommunications network is obtained in readiness for potentially handing off the communication. A quality driven handoff is initiated when the quality measurement falls within a range of values defined by a first quality threshold and a second quality threshold.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: October 11, 2011
    Assignee: AT&T Mobility II LLC
    Inventor: Dipesh H. Shah
  • Publication number: 20110143748
    Abstract: A method and system for determining service metrics in a communications network are disclosed. The method measures a speed of a wireless endpoint device in an ongoing call, and collects call performance data. The method deems the ongoing call as being associated with a user who is mobile if the speed of the wireless endpoint device exceeds a speed threshold at any time during the ongoing call, or as being associated with a user who is stationary if the speed of the wireless endpoint device does not exceed or is equal to the speed threshold over a call duration. The method adds the call performance data to an aggregate service metrics for mobile users if the ongoing call is deemed as being associated with a user who is mobile, or to an aggregate service metrics for stationary users if the ongoing call is deemed as being associated with a user who is stationary.
    Type: Application
    Filed: December 13, 2009
    Publication date: June 16, 2011
    Inventors: Dipesh H. Shah, Kaushik D. Gohel
  • Patent number: 7280828
    Abstract: A system and method for selectively granting access to GSM wireless service based upon signal strength is provided. A base station may measure uplink signal strengths of bursts transmitted by a mobile station on a RACH, a SDCCH, or a TCH, and determine downlink signal strengths as conveyed by the mobile station on a SACCH allocated with the SDCCH or TCH. The base station is configured to compare the uplink signal strengths of the RACH, SDCCH, or TCH bursts with uplink signal thresholds to determine service access. In addition, the base station is further configured to compare the downlink signal strength of a BCCH, as reported by the mobile station on the SACCH, with downlink signal thresholds associated with the service request types conveyed by the SDCCH/TCH bursts. The base station then determines service access for a service request type based upon those comparisons.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: October 9, 2007
    Assignee: Cingular Wireless II, LLC
    Inventor: Dipesh H. Shah