Patents by Inventor Arun K. Chatterjee

Arun K. Chatterjee 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: 9998460
    Abstract: A technique redirects a Diameter client command from a first server that has become unavailable to a second server consistent with a Diameter protocol. A method includes identifying a first authentication server as unavailable based on a redirect indication received from a second authentication server via a routing agent in response to a request for authentication of a user to the first authentication server. The method includes authenticating the user by the second authentication server in response to a subsequent request for authentication of the user to the second authentication server. The subsequent request for authentication includes an indication of a failure of the first authentication server. The method may include establishing a first service session in response to authenticating the user by the first authentication server and maintaining the first service session using the IP address of the first service session while the second authentication server authenticates the user.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: June 12, 2018
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Bhuvan Modi, Amjad Sandouka, Arun K. Chatterjee
  • Publication number: 20160381019
    Abstract: A technique redirects a Diameter client command from a first server that has become unavailable to a second server consistent with a Diameter protocol. A method includes identifying a first authentication server as unavailable based on a redirect indication received from a second authentication server via a routing agent in response to a request for authentication of a user to the first authentication server. The method includes authenticating the user by the second authentication server in response to a subsequent request for authentication of the user to the second authentication server. The subsequent request for authentication includes an indication of a failure of the first authentication server. The method may include establishing a first service session in response to authenticating the user by the first authentication server and maintaining the first service session using the IP address of the first service session while the second authentication server authenticates the user.
    Type: Application
    Filed: June 29, 2015
    Publication date: December 29, 2016
    Inventors: Bhuvan Modi, Amjad Sandouka, Arun K. Chatterjee
  • Patent number: 8874109
    Abstract: A method and system automatically activates a mobile station in a wireless communications network. The system includes an over the air activation function (OTAF) processor in the network that initiates an activation process in response to receiving a registration message from a mobile switching center serving the mobile station requesting the activation. Each mobile station has a unit of information stored into it at the time of its manufacture to enable it to request over the air activation. That unit of information is either the network routing address of the OTAF processor, or alternately, it is a value that is translatable into that address, either an OTAF ID number that is the same value for every mobile station or it is a sequentially serialized dummy value for the mobile identification number (a dummy MIN).
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: October 28, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: Arun K. Chatterjee, Brian Kevin Daly, David William James Holmes, Ileana A. Leuca
  • Publication number: 20130331102
    Abstract: A method and system automatically activates a mobile station in a wireless communications network. The system includes an over the air activation function (OTAF) processor in the network that initiates an activation process in response to receiving a registration message from a mobile switching center serving the mobile station requesting the activation. Each mobile station has a unit of information stored into it at the time of its manufacture to enable it to request over the air activation. That unit of information is either the network routing address of the OTAF processor, or alternately, it is a value that is translatable into that address, either an OTAF ID number that is the same value for every mobile station or it is a sequentially serialized dummy value for the mobile identification number (a dummy MIN).
    Type: Application
    Filed: August 19, 2013
    Publication date: December 12, 2013
    Applicant: AT&T Mobility II LLC
    Inventors: Arun K. Chatterjee, Brian Kevin Daly, David William James Holmes, Ileana A. Leuca
  • Patent number: 8515423
    Abstract: A method and system automatically activates a mobile station in a wireless communications network. The system includes an over the air activation function (OTAF) processor in the network that initiates an activation process in response to receiving a registration message from a mobile switching center serving the mobile station requesting the activation. Each mobile station has a unit of information stored into it at the time of its manufacture to enable it to request over the air activation. That unit of information is either the network routing address of the OTAF processor, or alternately, it is a value that is translatable into that address, either an OTAF ID number that is the same value for every mobile station or it is a sequentially serialized dummy value for the mobile identification number (a dummy MIN).
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 20, 2013
    Assignee: AT&T Mobility II LLC
    Inventors: Arun K. Chatterjee, Brian Kevin Daly, David William James Holmes, Ileana A. Leuca
  • Patent number: 8301140
    Abstract: A method and system automatically activates a mobile station in a wireless communications network. The system includes an over the air activation function (OTAF) processor in the network that initiates an activation process in response to receiving a registration message from a mobile switching center serving the mobile station requesting the activation. Each mobile station has a unit of information stored into it at the time of its manufacture to enable it to request over the air activation. That unit of information is either the network routing address of the OTAF processor, or alternately, it is a value that is translatable into that address, either an OTAF ID number that is the same value for every mobile station or it is a sequentially serialized dummy value for the mobile identification number (a dummy MIN). When the mobile station is turned on for the first time in the network, it requests activation over the air by transmitting to the local mobile switching center a registration order.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: October 30, 2012
    Assignee: AT&T Mobility II LLC
    Inventors: Arun K. Chatterjee, Brian Kevin Daly, David William James Holmes, Ileana A. Leuca
  • Patent number: 7613456
    Abstract: A method and system automatically activates a mobile station in a wireless communications network. The system includes an over the air activation function (OTAF) processor in the network that initiates an activation process in response to receiving a registration message from a mobile switching center serving the mobile station requesting the activation. Each mobile station has a unit of information stored into it at the time of its manufacture to enable it to request over the air activation. That unit of information is either the network routing address of the OTAF processor, or alternately, it is a value that is translatable into that address, either an OTAF ID number that is the same value for every mobile station or it is a sequentially serialized dummy value for the mobile identification number (a dummy MIN). When the mobile station is turned on for the first time in the network, it requests activation over the air by transmitting to the local mobile switching center a registration order.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: November 3, 2009
    Assignee: AT&T Mobility II LLC
    Inventors: Arun K. Chatterjee, Brian Kevin Daly, David William James Holmes, Ileana A. Leuca
  • Publication number: 20090191872
    Abstract: A method and system automatically activates a mobile station in a wireless communications network. The system includes an over the air activation function (OTAF) processor in the network that initiates an activation process in response to receiving a registration message from a mobile switching center serving the mobile station requesting the activation. Each mobile station has a unit of information stored into it at the time of its manufacture to enable it to request over the air activation. That unit of information is either the network routing address of the OTAF processor, or alternately, it is a value that is translatable into that address, either an OTAF ID number that is the same value for every mobile station or it is a sequentially serialized dummy value for the mobile identification number (a dummy MIN). When the mobile station is turned on for the first time in the network, it requests activation over the air by transmitting to the local mobile switching center a registration order.
    Type: Application
    Filed: January 30, 2009
    Publication date: July 30, 2009
    Inventors: Arun K. Chatterjee, Brian Kevin Daly, David William James Holmes, Ileana A. Leuca
  • Patent number: 6915132
    Abstract: A method and system automatically activates a mobile station in a wireless communications network. The system includes an over the air activation function (OTAF) processor in the network that initiates an activation process in response to receiving a registration message from a mobile switching center serving the mobile station requesting the activation. Each mobile station has a unit of information stored into it at the time of its manufacture to enable it to request over the air activation. That unit of information is either the network routing address of the OTAF processor, or alternately, it is a value that is translatable into that address, either an OTAF ID number that is the same value for every mobile station or it is a sequentially serialized dummy value for the mobile identification number (a dummy MIN). When the mobile station is turned on for the first time in the network, it requests activation over the air by transmitting to the local mobile switching center a registration order.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: July 5, 2005
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Arun K. Chatterjee, Brian Kevin Daly, David William James Holmes, Ileana A. Leuca
  • Publication number: 20040176086
    Abstract: A method and system automatically activates a mobile station in a wireless communications network. The system includes an over the air activation function (OTAF) processor in the network that initiates an activation process in response to receiving a registration message from a mobile switching center serving the mobile station requesting the activation. Each mobile station has a unit of information stored into it at the time of its manufacture to enable it to request over the air activation. That unit of information is either the network routing address of the OTAF processor, or alternately, it is a value that is translatable into that address, either an OTAF ID number that is the same value for every mobile station or it is a sequentially serialized dummy value for the mobile identification number (a dummy MIN). When the mobile station is turned on for the first time in the network, it requests activation over the air by transmitting to the local mobile switching center a registration order.
    Type: Application
    Filed: March 16, 2004
    Publication date: September 9, 2004
    Applicant: AT&T Wireless Services, Inc.
    Inventors: Arun K. Chatterjee, Brian Kevin Daly, David William James Holmes, Ileana A. Leuca
  • Publication number: 20020037724
    Abstract: A method and system automatically activates a mobile station in a wireless communications network. The system includes an over the air activation function (OTAF) processor in the network that initiates an activation process in response to receiving a registration message from a mobile switching center serving the mobile station requesting the activation. Each mobile station has a unit of information stored into it at the time of its manufacture to enable it to request over the air activation. That unit of information is either the network routing address of the OTAF processor, or alternately, it is a value that is translatable into that address, either an OTAF ID number that is the same value for every mobile station or it is a sequentially serialized dummy value for the mobile identification number (a dummy MIN). When the mobile station is turned on for the first time in the network, it requests activation over the air by transmitting to the local mobile switching center a registration order.
    Type: Application
    Filed: June 29, 2001
    Publication date: March 28, 2002
    Inventors: Arun K. Chatterjee, Brian Kevin Daly, David William James Holmes, Ileana A. Leuca
  • Patent number: 6282421
    Abstract: A method and system automatically activates a mobile station in a wireless communications network. The system includes an over the air activation function (OTAF) processor in the network that initiates an activation process in response to receiving a registration message from a mobile switching center serving the mobile station requesting the activation. Each mobile station has a unit of information stored into it at the time of its manufacture to enable it to request over the air activation. That unit of information is either the network routing address of the OTAF processor, or alternately, it is a value that is translatable into that address, either an OTAF ID number that is the same value for every mobile station or it is a sequentially serialized dummy value for the mobile identification number (a dummy MIN). When the mobile station is turned on for the first time in the network, it requests activation over the air by transmitting to the local mobile switching center a registration order.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: August 28, 2001
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Arun K. Chatterjee, Brian Kevin Daly, David William James Holmes, Ileana A. Leuca
  • Patent number: 6188899
    Abstract: A method and system automatically activates a mobile station in a wireless communications network. The system includes an over the air activation function (OTAF) processor in the network that initiates an activation process in response to receiving a registration message from a mobile switching center serving the mobile station requesting the activation. Each mobile station has a unit of information stored into it at the time of its manufacture to enable it to request over the air activation. That unit of information is either the network routing address of the OTAF processor, or alternately, it is a value that is translatable into that address, either an OTAF ID number that is the same value for every mobile station or it is a sequentially serialized dummy value for the mobile identification number (a dummy MIN). When the mobile station is turned on for the first time in the network, it requests activation over the air by transmitting to the local mobile switching center a registration order.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: February 13, 2001
    Assignee: AT&T Wireless Svcs, Inc.
    Inventors: Arun K. Chatterjee, Brian Kevin Daly, David William James Holmes, Ileana A. Leuca