Patents by Inventor Khaledul Islam

Khaledul Islam 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: 8090380
    Abstract: A method for creating a radio resource control profile for a radio resource allocation or a state-transition profile having the steps of receiving a parameter associated with a user equipment (UE), associating the parameter with the radio resource control profile for the radio resource allocation or the state-transition profile and initiating the radio resource allocation or state transition profile for the UE.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: January 3, 2012
    Assignee: Research In Motion Limited
    Inventors: Muhammad Khaledul Islam, Jeffery Wirtanen, Thomas Leonard Trevor Plestid
  • Publication number: 20110319073
    Abstract: A method and a multi-mode mobile communication device operating said method are provided. The method comprises selecting a first data connection by a multi-mode mobile communication device while there is no data to be transmitted, said first data connection carried over a first network utilizing a first radio access technology (RAT) based on a first criteria, and selecting a second data connection by the multi-mode mobile communication device while data is being transmitted, said second data connection carried over a second network utilizing a second RAT based on a second criteria. The multi-mode communication device comprises a first transceiver adapted to be connected to a server using the first RAT, a second transceiver adapted to be connected to the server using the second RAT, and a processor for carrying out the method.
    Type: Application
    Filed: June 28, 2011
    Publication date: December 29, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Ozgur Ekici, Dimitrios Prodanos, Muhammad Khaledul ISLAM
  • Publication number: 20110319072
    Abstract: A method and a multi-mode mobile communication device operating said method are provided. The method comprises a multi-mode mobile communication device selecting a first data connection carried over a first radio access technology (RAT) based on a first requested QoS, and the multi-mode mobile communication device selecting a second data connection over a second RAT based on a second requested QoS. The multi-mode communication device comprises a first transceiver adapted to be connected to a server using the first RAT, a second transceiver adapted to be connected to the server using the second RAT, and a processor for carrying out the method.
    Type: Application
    Filed: June 28, 2011
    Publication date: December 29, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Ozgur Ekici, Dimitrios Prodanos, Muhammad Khaledul ISLAM
  • Publication number: 20110319050
    Abstract: A method and apparatus for enhancing the probability of a successful emergency call completion and emergency callback on a mobile station in a network, the method comprising the steps of: during an emergency call attempt, monitoring whether the mobile station has received a non-voice service request from the network and, if yes, ignoring the non-voice service request. Further, during a callback period, monitoring whether the mobile station has received a service request from the network and, if yes, ignoring the service request if the service request is a non-voice service request that is anything but a position location service request. Further, during a callback period, monitoring whether a user attempts to initiate a non-voice service request that is anything but a position location service request, and if yes ignoring the non-voice service request.
    Type: Application
    Filed: September 8, 2011
    Publication date: December 29, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Asif Hossain, M. Khaledul Islam, T.L. Trevor Plestid
  • Publication number: 20110306352
    Abstract: A method and network element for sending a transition indication to transition a user equipment to a different state or mode, the method receiving a configuration message from a network; and transmitting a transition indication from the user equipment, the transition indication only includes a cause if the configuration message contains an inhibit transition indication. Also, a method and user equipment for processing a transitioning indication from a user equipment indicating the user equipment desires a transition to a different state or mode, the method comprising: receiving the transition indication from the user equipment; if the transition indication contains a cause: releasing a signaling connection of the user equipment or transitioning the user equipment to a different state or mode; and if the transition indication does not contain the cause: releasing the signaling connection.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 15, 2011
    Inventors: Gordon Peter YOUNG, Takashi Suzuki, Claude Jean-Frederic Arzelier, Muhammad Khaledul Islam, Jeffrey William Wirtanen
  • Patent number: 8078178
    Abstract: A method and apparatus to restore always on connectivity to user equipment, the method having the steps of: monitoring whether the user equipment has transitioned to a network that supports concurrent voice and data; performing, upon the monitoring step detecting the transition, a routing area update; checking whether the user equipment was in a voice call at the time of the transition, and if yes, sending a data packet to the network.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: December 13, 2011
    Assignee: Research in Motion Limited
    Inventors: Muhammad Khaledul Islam, Jeffrey Wirtanen, Jean-Philippe Cormier, Dimitrios Prodanos
  • Patent number: 8065530
    Abstract: Apparatus, and an associated method for facilitating paging of an access terminal operable in a radio communication system. A plurality of random numbers are generated. And, for each of the random numbers, a hash value is created by applying the random number to a hash function. The hash values identify bit locations of a paging message. When the paging message is formed, bit locations associated with the hash values are populated with bit values that identify whether the access terminal is being paged. And, the access terminal checks the bit values at the bit locations associated with the hash values to determine whether the access terminal is being paged.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: November 22, 2011
    Assignee: Research in Motion Limited
    Inventors: William Daniel Willey, Muhammad Khaledul Islam
  • Publication number: 20110276701
    Abstract: A system to promote communication in a second domain responsive to a failure in a first domain. The system includes a first domain for communicating, and a second domain for communicating. The system includes a rejection message and a mobile device. The rejection message transmitted upon a failure of a call in the first domain. The mobile device configured to communicate in both the first domain and the second domain. The mobile device configured to attempt the call in the second domain responsive to receiving the rejection message in the first domain.
    Type: Application
    Filed: June 27, 2011
    Publication date: November 10, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Rene W. Purnadi, M. Khaledul Islam, Adrian Buckley
  • Patent number: 8045969
    Abstract: A mobile device detects whether its temperature is within a first or second range of values, and operates in a full communication state within the first range and a limited communication state within the second range. The mobile device receives a communication request for establishment of a voice call or for communication of a user data message. In the full communication state, the mobile device permits an emergency or non-emergency voice call to be established, and permits a user data message to be communicated. In the limited communication state, the mobile device inhibits a non-emergency voice call from being established, but permits an emergency voice call to be established.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: October 25, 2011
    Assignee: Research In Motion Limited
    Inventors: Xin Jin, Muhammad Khaledul Islam
  • Patent number: 8045953
    Abstract: A method and apparatus for the selection of an emergency number in a mobile station having a geographic indicator, the method comprising the steps of and the apparatus characterized by means for: determining whether a user is attempting to reach an emergency service provider; and if the user is attempting to reach an emergency service provider, connecting to a network if the mobile station is not already connected to a network; looking up an emergency dial string in a look-up table based on the geographic indicator and the network connected to and the underlying service; and sending the emergency dial string.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: October 25, 2011
    Assignee: Research In Motion Limited
    Inventors: Muhammad Khaledul Islam, Asif Hossain
  • Publication number: 20110250863
    Abstract: A method in a mobile device includes receiving an incoming call. An emergency signal, associated with an incoming call, is detected. The emergency signal indicates the incoming call is from an emergency call center. Responsive to detecting the emergency signal, the emergency call is automatically answered, and information identifying the incoming call as an emergency call is displayed on the mobile device.
    Type: Application
    Filed: June 21, 2011
    Publication date: October 13, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: M. Khaledul Islam, William Daniel Willey, Luis P. Estable
  • Patent number: 8036633
    Abstract: A method and apparatus for enhancing the probability of a successful emergency call completion and emergency callback on a mobile station in a network, the method comprising the steps of: during an emergency call attempt, monitoring whether the mobile station has received a non-voice service request from the network and, if yes, ignoring the non-voice service request. Further, during a callback period, monitoring whether the mobile station has received a service request from the network and, if yes, ignoring the service request if the service request is a non-voice service request that is anything but a position location service request. Further, during a callback period, monitoring whether a user attempts to initiate a non-voice service request that is anything but a position location service request, and if yes ignoring the non-voice service request.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: October 11, 2011
    Inventors: Muhammad Khaledul Islam, Asif Hossain, Thomas Leonard Travor Plestid
  • Publication number: 20110244864
    Abstract: Techniques for use in selecting a base station transceiver system for communication with a mobile station are described. The mobile station is connected to a first base station transceiver system, and scans to identify a second base station transceiver system for communication. The mobile station further identifies that the second base station transceiver system provides a predetermined communication service, and that the first base station transceiver system fails to provide the predetermined communication service. In response to identifying, the mobile station causes the second base station transceiver system to be selected for communication over the first base station transceiver system even if the signal quality of the second base station transceiver system is worse than that of the first base station transceiver system.
    Type: Application
    Filed: June 20, 2011
    Publication date: October 6, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: M. Khaledul Islam, Asif Hossain
  • Publication number: 20110238344
    Abstract: A method includes measuring an operating parameter of a battery of a mobile device. The measured operating parameter is translated into an equivalent series resistance (ESR) value. The ESR value is adjusted by a correction factor to generate a corrected ESR value. The capacity of the battery is determined based on the corrected ESR value. The correction factor is automatically calibrated based on the measured operating parameter.
    Type: Application
    Filed: June 10, 2011
    Publication date: September 29, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Xin Jin, Calin N. Bugnariu, M. Khaledul Islam, Samir R. Shah, Stephen L. Pomeroy, Reguina Bouianovskaia, Junhong Nie
  • Publication number: 20110230163
    Abstract: Techniques for use in a mobile device involve detecting a temperature condition at said device and, in response, operating in a limited communication state for which only emergency communication is permitted. When the mobile device receives a user-initiated communication request, the mobile device inhibits non-emergency communication but permits emergency communication despite the existence of said temperature condition.
    Type: Application
    Filed: June 1, 2011
    Publication date: September 22, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Xin Jin, M. Khaledul Islam
  • Publication number: 20110212724
    Abstract: A mobile device and method are provided that make use of a removable memory with stored radio information. The removable device is distinct from an identity module (such as a SIM or USIM). The mobile device updates the stored radio information and makes use of it. When a user switches SIMs, but keeps the removable memory, the radio information will still be available. The user can also switch the removable memory to another device containing a different SIM, or containing the same SIM as the previous device, and the stored information will again be available on the new device.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 1, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Jeffrey William WIRTANEN, M. Khaledul ISLAM
  • Publication number: 20110205932
    Abstract: A method for detecting a target cell by a mobile device, the method comprising storing traversed paths of the mobile device, the stored traversed paths each comprising information to identify cells in a sequence of cells traversed by the mobile device referenced to the target cell, compiling information identifying cells traversed by the device in real time to produce current path information, comparing the current path information to the stored traversed paths and inferring from the comparison a relative proximity of the mobile device to the target cell and adapting a search for the target cell based on the relative proximity.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 25, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Ozgur Ekici, M. Khaledul Islam
  • Patent number: 7995562
    Abstract: A system to promote communication in a second domain responsive to a failure in a first domain. The system includes a first domain for communicating, and a second domain for communicating. The system includes a rejection message and a mobile device. The rejection message transmitted upon a failure of a call in the first domain. The mobile device configured to communicate in both the first domain and the second domain. The mobile device configured to attempt the call in the second domain responsive to receiving the rejection message in the first domain.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: August 9, 2011
    Assignee: Research In Motion Limited
    Inventors: Rene W. Purnadi, M. Khaledul Islam, Adrian Buckley
  • Patent number: 7991383
    Abstract: A method of identifying an emergency call received on a mobile device includes receiving a call from an emergency call center. In association with the call, an emergency signal is received, indicating that the call is an emergency call. Information is displayed on the mobile device to identify the emergency call.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: August 2, 2011
    Assignee: Research In Motion Limited
    Inventors: M. Khaledul Islam, William Daniel Willey, Luis P. Estable
  • Patent number: 7991397
    Abstract: Provided are systems and methods for generating a blacklist for femtocells. According to an embodiment of the application, a mobile device generates and maintains a femtocell blacklist including an identification of at least one femtocell to be avoided by the mobile device. Upon detecting a femtocell, the mobile device determines whether the femtocell is identified in the femtocell blacklist. If the femtocell is identified in the femtocell blacklist, then the mobile device avoids any attempt to use the femtocell. This might allow the mobile device to conserve battery power and reduce wireless communication resources. Since the femtocell blacklist is generated and maintained by the mobile device, the network infrastructure does not need to generate and manage the femtocell blacklist. Also, there is no need for the mobile device to download a femtocell blacklist or updates thereof from the network infrastructure.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: August 2, 2011
    Assignee: Research In Motion Limited
    Inventors: William Daniel Willey, M. Khaledul Islam, Asif Hossain, Kwong Hang Chan, Rene Purnadi, Hao Xue, Shahid Chaudry