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: 8213947
    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: November 30, 2011
    Date of Patent: July 3, 2012
    Assignee: Research In Motion Limited
    Inventors: Thomas Leonard Trevor Plestid, Jeffrey William Wirtanen, Muhammad Khaledul Islam
  • Patent number: 8208950
    Abstract: A method and apparatus for transitioning states or modes on a user equipment, the method having the steps of receiving, at a network element, a transition indication; checking a radio resource profile for the user equipment; and making a transitioning decision at the network element based on the received transition indication and the radio resource profile.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: June 26, 2012
    Assignee: Research In Motion Limited
    Inventors: Muhammad Khaledul Islam, Jeffrey Wirtanen, Takashi Suzuki, Gordon Peter Young, Claude Arzelier
  • Patent number: 8195206
    Abstract: Methods and apparatus for providing consistency in Short Message Service (SMS) timestamp formatting (UTC or non-UTC) for mobile communication devices are disclosed. In one illustrative example, a method involves receiving an SMS message intended for a mobile communication device; identifying whether the SMS message has timestamp data formatted in Coordinated Universal Time (UTC) format or non-UTC format; converting the timestamp data from the UTC format to a non-UTC time format based on an identification that the SMS message has timestamp data formatted in the UTC format; failing to convert the timestamp data to a non-UTC time format based on an identification that the SMS message has timestamp data in the non-UTC format; and causing the SMS message to be sent to the mobile communication device.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: June 5, 2012
    Assignee: Research In Motion Limited
    Inventors: M. Khaledul Islam, Asif Hossain, William Daniel Willey
  • Patent number: 8184637
    Abstract: A method, system and apparatus for dynamically modifying the quality of service provided to a mobile communication device. The method includes the steps of establishing a secure tunnel between the mobile communication device and a remote network through a wireless network; communicating through the secure tunnel at a first quality of service; determining that a second quality of service, higher or lower than the first quality of service, is more appropriate to the communication type, and requesting, from the wireless network, the second quality of service.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: May 22, 2012
    Assignee: Research In Motion Limited
    Inventors: Jean-Philippe Cormier, Thomas Leonard Trevor Plestid, Muhammad Khaledul Islam
  • Patent number: 8185110
    Abstract: A method and apparatus of optimizing transitioning between EVDO and CDMA 1× systems in a hybrid access terminal, the method having the steps of: preventing a reconnect data call from being sent from the hybrid access terminal. The preventing step including checking whether a transition between an EVDO and a CDMA 1× system is successful; and if not blocking the data call, and/or checking whether an EVDO received signal strength indication is greater than or equal to a receiver sensitivity on the hybrid access terminal; and if yes, allowing the hybrid access terminal to connect to the EVDO system, and/or delaying a connection timer for connecting to the EVDO system and/or applying fast dormancy to the hybrid access terminal in an EVDO state.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: May 22, 2012
    Assignee: Research In Motion Limited
    Inventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
  • Publication number: 20120120913
    Abstract: A method in a mobile device is provided. The method includes storing the number of IP (Internet protocol) sessions available to the mobile device for each of a number of network areas; and when the mobile device is in a location where two of the network areas overlap, performing cell selection based on the stored number of IP sessions for each of the overlapping network areas.
    Type: Application
    Filed: November 11, 2010
    Publication date: May 17, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Jeffrey William WIRTANEN, Muhammad Khaledul ISLAM
  • Patent number: 8180284
    Abstract: A method and apparatus for sending an event from user equipment operating in a mobile network, the method comprising the steps of: monitoring whether an unrelated opportunistic event has occurred; and sending said event with said unrelated opportunistic event.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: May 15, 2012
    Assignee: Research In Motion Limited
    Inventors: Thomas Leonard Trevor Plestid, Muhammad Khaledul Islam, Jeffrey William Wirtanen
  • Publication number: 20120108235
    Abstract: A method and system of providing a mobile data device in a wireless system with information about preferred networks to connect to, the mobile device having a preferred roaming list with a list of networks, the method comprising the steps of: adding to the preferred roaming list information about whether each network in the list of networks supports third generation data capabilities; and determining preferred networks based on information within the preferred roaming list including a geographic area and whether the network supports third generation data capabilities, whereby, within the geographic area, the mobile device prefers networks which support third generation data capabilities over networks which do not support said third generation data capabilities. Other information that may be added to the preferred roaming list includes whether the network supports data roaming, Mobile-IP services or always-on features.
    Type: Application
    Filed: January 11, 2012
    Publication date: May 3, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Hao Xue, M. Khaledul Islam, William Daniel Willey
  • Publication number: 20120088503
    Abstract: An apparatus and method is provided for making use of black-list network information to make scanning more efficient in multi-mode mobile devices. When performing a scan for a network, if a network that is blacklisted is found, scanning is discontinued for any network that has the same radio access technology as the network that was found. Thus, excessive scanning that can be costly for the mobile device in terms of battery life and responsiveness to provide service, is avoided.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 12, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: M. KHALEDUL ISLAM, ASIF HOSSAIN
  • Publication number: 20120087362
    Abstract: Systems and methods are provided for wireless network selection by multi-mode devices. A mobile device maintains an indication of any wireless network services currently provided to the mobile device. According to an embodiment of the application, the mobile device automatically scans for both GSM wireless networks and CDMA wireless networks in order to acquire a wireless network that can provide a service that is not currently provided to the mobile device. Therefore, the mobile device avoids partial service or limited service when better service is available.
    Type: Application
    Filed: December 21, 2011
    Publication date: April 12, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: M. Khaledul ISLAM, Asif HOSSAIN
  • Publication number: 20120088513
    Abstract: A mobile device is engaged in a connected data service via a wireless network. The connected data service utilizes a radio traffic channel established between the mobile device and the wireless network and a data session for communicating data. While engaged in the service, the mobile device receives via a user interface a voice call request for initiating a voice call. In response to the request, the mobile device permits the initiation of the voice call. Specifically, the mobile device causes the radio traffic channel for the connected data service to be torn down without terminating the data session. The mobile device also causes the voice call to be established and maintained over a new radio traffic channel via the wireless network while the data session for the data service is maintained.
    Type: Application
    Filed: December 16, 2011
    Publication date: April 12, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Shahid R. Chaudry, M. Khaledul Islam
  • Publication number: 20120076093
    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: Application
    Filed: November 30, 2011
    Publication date: March 29, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Muhammad Khaledul Islam, Jeffrey Wirtanen, Thomas Leonard Trevor Plestio
  • Publication number: 20120057583
    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: Application
    Filed: November 9, 2011
    Publication date: March 8, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Muhammad Khaledul ISLAM, Jeffrey WIRTANEN, Jean-Philippe CORMIER, Dimitrios PRODANOS
  • Patent number: 8131324
    Abstract: Generally, the present invention provides a method for detecting poor RF conditions, and entering different sleep mode levels or phases in accordance with the RF conditions to save battery power. Mobile device battery life can be conserved when the mobile device detects poor RF conditions and enters a deep sleep mode of operation. In this deep sleep mode of operation the mobile device periodically samples the RF conditions and gradually increases the period between samples when the RF conditions do not improve. Because mobility can change the RF condition for wireless devices even in areas of good RF coverage, the mobile device operating in the deep sleep mode can detect this mobility and thus enhance the probability of entering an idle state, or alternatively, entering a longer power save mode. When the RF condition improves, the mobile device exits from the deep sleep mode and returns to the idle state.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: March 6, 2012
    Assignee: Research In Motion Limited
    Inventors: Asif Hossain, Muhammad Khaledul Islam
  • Patent number: 8116765
    Abstract: A method and system of providing a mobile data device in a wireless system with information about preferred networks to connect to, the mobile data device having a preferred roaming list with a list of networks, the method comprising the steps of: adding to the preferred roaming list information about whether each network in the list of networks supports third generation data capabilities; and determining preferred networks based on information within the preferred roaming list including a geographic area and whether the network supports third generation data capabilities, whereby, within the geographic area, the mobile data device prefers networks which support third generation data capabilities over networks which do not support said third generation data capabilities. Other information that may be added to the preferred roaming list includes whether the network supports data roaming, Mobile IP services or always-on features.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: February 14, 2012
    Assignee: Research In Motion Limited
    Inventors: Hao Xue, M. Khaledul Islam, William Daniel Willey
  • Patent number: 8107955
    Abstract: An apparatus and method is provided for making use of black-list network information to make scanning more efficient in multi-mode mobile devices. When performing a scan for a network, if a network that is blacklisted is found, scanning is discontinued for any network that has the same radio access technology as the network that was found. Thus, excessive scanning that can be costly for the mobile device in terms of battery life and responsiveness to provide service, is avoided.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: January 31, 2012
    Assignee: Research In Motion Limited
    Inventors: M. Khaledul Islam, Asif Hossain
  • Patent number: 8107954
    Abstract: Systems and methods are provided for wireless network selection by multi-mode devices. A mobile device maintains an indication of any wireless network services currently provided to the mobile device. According to an embodiment of the application, the mobile device automatically scans for both GSM wireless networks and CDMA wireless networks in order to acquire a wireless network that can provide a service that is not currently provided to the mobile device. Therefore, the mobile device avoids partial service or limited service when better service is available.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: January 31, 2012
    Assignee: Research In Motion Limited
    Inventors: M. Khaledul Islam, Asif Hossain
  • Patent number: 8099118
    Abstract: A voice call request for a voice call involving the mobile device is received in a wireless network while the mobile device is engaged in a connected data communication service via the wireless network. The service utilizes a radio traffic channel between the mobile device and the wireless network and a data session for communication of data. In response to the receiving of the voice call request, the wireless network causes the radio traffic channel for the service to be torn down without terminating the data session. The wireless network also causes a voice call involving the mobile device to be established and maintained over a new radio traffic channel via the wireless network while the data session for the service is maintained. Subsequently, the wireless network identifies an indication that the voice call involving the mobile device has ended and, in response, resumes the communication of the data in the data session over a radio traffic channel.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: January 17, 2012
    Assignee: Research In Motion Limited
    Inventors: Shahid Rasul Chaudry, Muhammad Khaledul Islam
  • Publication number: 20120009893
    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 sending the emergency dial string.
    Type: Application
    Filed: September 19, 2011
    Publication date: January 12, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Muhammad Khaledul Islam, Asif Hossain
  • Publication number: 20120002614
    Abstract: A method and apparatus for radio resource management in a wireless device is provided. A type of data connection to be established between the wireless device and a network is determined. A radio resource capability mode for the data connection based on resource requirements of the determined type of data connection is dynamically determined wherein the radio resource capability mode is selected from a plurality of radio resource capability modes operable by the wireless device within wireless technologies supported by the network. The determined radio resource capability mode is conveyed to the network during connection establishment between the wireless device and the network, wherein the radio resource capability mode is used by the network to determine radio resources to be allocated to the wireless device for the connection.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 5, 2012
    Applicant: Research in Motion Limited
    Inventors: Ozgur EKICI, Muhammad Khaledul Islam