Patents by Inventor Giri Narayana Reddy

Giri Narayana Reddy 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: 9432887
    Abstract: A user equipment is provided comprising: 1) transceiver circuitry configured to operate in cells associated with at least one radio access technology (RAT) network; and 2) a controller configured to perform neighbor cell searches. The controller is further configured to determine when the user equipment enters a first RRC state from a second RRC state. In response to a determination that the user equipment entered a first RRC state from a second RRC state, the controller delays performing a cell search until the controller determines that the user equipment has received complete system information for a serving cell.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: August 30, 2016
    Assignee: BlackBerry Limited
    Inventors: David Philip Hole, Andrew John Farnsworth, Tomasz Henryk Mach, Takashi Suzuki, Giri Narayana Reddy
  • Publication number: 20150094067
    Abstract: A user equipment is provided comprising: 1) transceiver circuitry configured to operate in cells associated with at least one radio access technology (RAT) network; and 2) a controller configured to perform neighbor cell searches. The controller is further configured to determine when the user equipment enters a first RRC state from a second RRC state. In response to a determination that the user equipment entered a first RRC state from a second RRC state, the controller delays performing a cell search until the controller determines that the user equipment has received complete system information for a serving cell.
    Type: Application
    Filed: December 9, 2014
    Publication date: April 2, 2015
    Applicant: BlackBerry Limited
    Inventors: David Philip HOLE, Andrew John FARNSWORTH, Tomasz Henryk MACH, Takashi SUZUKI, Giri Narayana REDDY
  • Patent number: 8976701
    Abstract: Apparatus and a method are described for handling inter-radio access technology measurement reports in a radio telecommunications device, the device being operable with a first cellular radio access technology (e.g. UTRAN, E-UTRAN), GERAN and Generic Access Network, the radio telecommunications device being capable of adopting a cellular preferred mode.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 10, 2015
    Assignee: BlackBerry Limited
    Inventors: Raghavendra Magadi Rangaiah, Andrew John Farnsworth, Giri Narayana Reddy, David Philip Hole
  • Publication number: 20140269394
    Abstract: Apparatus and a method are described for handling inter-radio access technology measurement reports in a radio telecommunications device, the device being operable with a first cellular radio access technology (e.g. UTRAN, E-UTRAN), GERAN and Generic Access Network, the radio telecommunications device being capable of adopting a cellular preferred mode.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: BlackBerry Limited
    Inventors: Raghavendra MAGADI RANGAIAH, Andrew John FARNSWORTH, Giri Narayana REDDY, David Philip HOLE
  • Patent number: 8774763
    Abstract: A method in a wireless telecommunications device operative with a plurality of radio access networks, the method comprising: when operating with a first radio access network reading at least one ciphering variable applicable in the second radio access network (e.g. in UMTS reading the value of a variable START from the USIM of the device). When at least one ciphering variable applicable in the second radio access network renders ciphering in the second radio access network infeasible without further authentication (e.g. in UMTS when the value of START in USIM is equal to a value THRESHOLD), using a substitute value for the ciphering parameter (e.g. START) when establishing a connection with the second radio access network.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: July 8, 2014
    Assignee: BlackBerry Limited
    Inventors: Giri Narayana Reddy, Andrew Farnsworth
  • Patent number: 8743775
    Abstract: Apparatus and a method are described for handling inter-radio access technology measurement reports in a radio telecommunications device, the device being operable with a first cellular radio access technology (e.g. UTRAN, E-UTRAN), GERAN and Generic Access Network, the radio telecommunications device being capable of adopting a cellular preferred mode.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: June 3, 2014
    Assignee: BlackBerry Limited
    Inventors: Raghavendra Magadi Rangaiah, Andrew John Farnsworth, Giri Narayana Reddy, David Philip Hole
  • Patent number: 8687596
    Abstract: Apparatus and a method of cell reselection in a wireless telecommunications device operative with a plurality of radio access networks are disclosed. The method comprises, when the device is camped on a first radio access network: ranking cells in a neighboring list according to cell reselection criteria; considering for cell reselection a cell in the neighboring list; when the cell in the list is a cell of a second radio access network different from the first radio access network, applying an algorithm for cell reselection from the second radio access network to the first radio access network; and when the algorithm as applied would result in reselection to the first radio access network, considering for cell reselection another cell in the list.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: April 1, 2014
    Assignee: BlackBerry Limited
    Inventors: Giri Narayana Reddy, Andrew Farnsworth
  • Publication number: 20130294300
    Abstract: Apparatus and a method of cell reselection in a wireless telecommunications device operative with a plurality of radio access networks are disclosed. The method comprises, when the device is camped on a first radio access network: ranking cells in a neighbouring list according to cell reselection criteria; considering for cell reselection a cell in the neighbouring list; when the cell in the list is a cell of a second radio access network different from the first radio access network, applying an algorithm for cell reselection from the second radio access network to the first radio access network; and when the algorithm as applied would result in reselection to the first radio access network, considering for cell reselection another cell in the list.
    Type: Application
    Filed: January 31, 2012
    Publication date: November 7, 2013
    Applicant: Research In Motion Limited
    Inventors: Giri Narayana Reddy, Andrew Farnsworth
  • Publication number: 20130012163
    Abstract: A method in a wireless telecommunications device operative with a plurality of radio access networks, the method comprising: when operating with a first radio access network reading at least one ciphering variable applicable in the second radio access network (e.g. in UMTS reading the value of a variable START from the USIM of the device). When at least one ciphering variable applicable in the second radio access network renders ciphering in the second radio access network infeasible without further authentication (e.g. in UMTS when the value of START in USIM is equal to a value THRESHOLD), using a substitute value for the ciphering parameter (e.g. START) when establishing a connection with the second radio access network.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 10, 2013
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Giri Narayana REDDY, Andrew FARNSWORTH
  • Patent number: 8224290
    Abstract: A method in a wireless telecommunications device operative with a plurality of radio access networks, the method comprising: when operating with a first radio access network reading at least one ciphering variable applicable in the second radio access network (e.g. in UMTS reading the value of a variable START from the USIM of the device). When at least one ciphering variable applicable in the second radio access network renders ciphering in the second radio access network infeasible without further authentication (e.g. in UMTS when the value of START in USIM is equal to a value THRESHOLD), using a substitute value for the ciphering parameter (e.g. START) when establishing a connection with the second radio access network.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: July 17, 2012
    Assignee: Research In Motion Limited
    Inventors: Giri Narayana Reddy, Andrew Farnsworth
  • Publication number: 20120140684
    Abstract: Apparatus and a method of cell reselection in a wireless telecommunications device operative with a plurality of radio access networks are disclosed. The method comprises, when the device is camped on a first radio access network: ranking cells in a neighbouring list according to cell reselection criteria; considering for cell reselection a cell in the neighbouring list; when the cell in the list is a cell of a second radio access network different from the first radio access network, applying an algorithm for cell reselection from the second radio access network to the first radio access network; and when the algorithm as applied would result in reselection to the first radio access network, considering for cell reselection another cell in the list.
    Type: Application
    Filed: January 31, 2012
    Publication date: June 7, 2012
    Inventors: Giri Narayana Reddy, Andrew Farnsworth
  • Patent number: 8125956
    Abstract: Apparatus and a method of cell reselection in a wireless telecommunications device operative with a plurality of radio access networks are disclosed. The method comprises, when the device is camped on a first radio access network: ranking cells in a neighboring list according to cell reselection criteria; considering for cell reselection a cell in the neighboring list; when the cell in the list is a cell of a second radio access network different from the first radio access network, applying an algorithm for cell reselection from the second radio access network to the first radio access network; and when the algorithm as applied would result in reselection to the first radio access network, considering for cell reselection another cell in the list.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: February 28, 2012
    Assignee: Research In Motion Limited
    Inventors: Giri Narayana Reddy, Andrew Farnsworth
  • Publication number: 20100279682
    Abstract: Apparatus and a method are described for handling inter-radio access technology measurement reports in a radio telecommunications device, the device being operable with a first cellular radio access technology (e.g. UTRAN, E-UTRAN), GERAN and Generic Access Network, the radio telecommunications device being capable of adopting a cellular preferred mode.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 4, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Raghavendra Magadi Rangaiah, Andrew John Farnsworth, Giri Narayana Reddy, David Philip Hole
  • Publication number: 20100022235
    Abstract: A method in a wireless telecommunications device operative with a plurality of radio access networks, the method comprising: when operating with a first radio access network reading at least one ciphering variable applicable in the second radio access network (e.g. in UMTS reading the value of a variable START from the USIM of the device). When at least one ciphering variable applicable in the second radio access network renders ciphering in the second radio access network infeasible without further authentication (e.g. in UMTS when the value of START in USIM is equal to a value THRESHOLD), using a substitute value for the ciphering parameter (e.g. START) when establishing a connection with the second radio access network.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 28, 2010
    Inventors: Giri Narayana Reddy, Andrew Farnsworth
  • Publication number: 20100014454
    Abstract: Apparatus and a method of cell reselection in a wireless telecommunications device operative with a plurality of radio access networks are disclosed. The method comprises, when the device is camped on a first radio access network: ranking cells in a neighbouring list according to cell reselection criteria; considering for cell reselection a cell in the neighbouring list; when the cell in the list is a cell of a second radio access network different from the first radio access network, applying an algorithm for cell reselection from the second radio access network to the first radio access network; and when the algorithm as applied would result in reselection to the first radio access network, considering for cell reselection another cell in the list.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 21, 2010
    Inventors: Giri Narayana Reddy, Andrew Farnsworth