Patents by Inventor Asif Hossain

Asif Hossain 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: 8626233
    Abstract: A method and apparatus for configuring a mobile device capable of supporting multiple number assignment modules, the method writing a first configuration parameter to indicate whether the mobile device should support multiple number assignment modules; specifying a second configuration parameter to indicate whether the mobile device should support data connectivity on a second or subsequent number assignment module; and setting a third configuration parameter to indicate whether separate billing should occur for data usage on the multiple number assignment modules. Also, a method and apparatus for data connectivity on a mobile device supporting multiple name assignment modules, the method checking, subsequent to transitioning to a second name assignment module, whether the second name assignment module supports data connectivity; responsive to the checking, determining whether separate billing is required for the second name assignment module; and responsive to the determining, establishing a data connection.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: January 7, 2014
    Assignee: BlackBerry Limited
    Inventors: Asif Hossain, Padakandla Krishna Rao
  • Patent number: 8626109
    Abstract: A method for controlling receive diversity of an antenna system of a computer device, the antenna system including two or more antenna elements. The method includes establishing a session with a remote transmitting system and determining whether a predetermined criteria detected by the computer device is satisfied within the session. If the predetermined criteria is satisfied within the session, the method includes activating at least two of the antenna elements for receiving transmissions, enabling performance of receive diversity on the received transmissions, and performing receive diversity on the received transmissions. If the predetermined criteria is not satisfied within the session, the method includes activating at least one of the antenna elements, disabling performance of receive diversity on the received transmissions, and performing a default signal processing on the received transmissions. A mobile communication device may be used to perform the method.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: January 7, 2014
    Assignee: BlackBerry Limited
    Inventors: David Ma, Asif Hossain, Rakesh Gupta
  • Patent number: 8619557
    Abstract: In one embodiment, a scheme is disclosed for managing network traffic load upon outage of a network node disposed in a wireless packet data network, wherein the network node is adapted to serve a substantially large number of mobile nodes using respective data connections. Upon encountering an outage-causing condition, the network node releases the data connections and generates session termination messages for transmission to the mobile nodes. Responsive to receiving the session termination messages, the mobile nodes variably delay their data session reconnect requests based on randomization.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: December 31, 2013
    Assignee: BlackBerry Limited
    Inventors: Shahid Rasul Chaudry, Asif Hossain
  • Patent number: 8611957
    Abstract: A method and apparatus for configuration of a device personality based on mobile device identity module, the method including checking an identity module on the mobile device for one or more network modes; and configuring the personality of the mobile device based on results of the checking step.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: December 17, 2013
    Assignee: BlackBerry Limited
    Inventors: Farhad Ahmed, Asif Hossain
  • Patent number: 8594615
    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: September 8, 2011
    Date of Patent: November 26, 2013
    Assignee: BlackBerry Limited
    Inventors: Asif Hossain, Thomas Leonard Trevor Plestid, Muhammad Khaledul Islam
  • Publication number: 20130310032
    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: July 25, 2013
    Publication date: November 21, 2013
    Applicant: BlackBerry Limited
    Inventors: Muhammad Khaledul ISLAM, Asif HOSSAIN
  • Patent number: 8504094
    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: Grant
    Filed: June 20, 2011
    Date of Patent: August 6, 2013
    Assignee: Research In Motion Limited
    Inventors: Muhammad Khaledul Islam, Asif Hossain
  • Patent number: 8483180
    Abstract: A method of optimizing reconnection of a point to point protocol link layer in a mobile device comprising the steps of: monitoring whether the mobile device has entered a new zone; starting a stabilization period when the mobile device enters a new zone; checking whether the mobile device enters a different zone during the stabilization period; if the mobile device enters a different zone during the stabilization period, restarting the stabilization period and performing the checking step; and if the mobile device does not enter a new zone during the stabilization period, determining whether the mobile device is in a new zone, reconnecting to the new zone if the mobile device is in the new zone, and otherwise performing no reconnection.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: July 9, 2013
    Assignee: Research In Motion Limited
    Inventors: Asif Hossain, Muhammad Khaledul Islam, Jin Kim
  • Patent number: 8472375
    Abstract: A method and apparatus for user data traffic handling for an EVDO enabled hybrid mode mobile device, the method having the steps of: blocking a system selection at the mobile device until no EVDO traffic state exists, the blocking step includes either monitoring whether a user changes a scan mode on the mobile device; and if the user changes the scan mode, checking whether the mobile device is in an EVDO traffic state; and if yes delaying a system selection until the EVDO traffic state is ended, or monitoring whether a user is in an EVDO traffic state, and if yes, preventing a user from accessing a scan mode menu on the mobile device.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: June 25, 2013
    Assignee: Research In Motion Limited
    Inventors: Asif Hossain, Hao Xue, Shahid Chaudry, Wen Zhao
  • Patent number: 8428566
    Abstract: A network entity, method and system for providing supplementary services to a mobile device while roaming. The network entity comprises a receiver, a converter and an output. The receiver is for receiving a first message from a mobile device being provided roaming service by a first network, the first message being in a transport protocol supported by the first network and having embedded therein an invocation message based on for invocation of at least one supplementary service offered by a second network. The converter is for extracting the invocation message from the first message. The output is for sending the invocation message to the second network using a protocol used by the second network to invoke supplementary services.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: April 23, 2013
    Assignee: Research In Motion Limited
    Inventors: M. Khaledul Islam, Asif Hossain
  • Patent number: 8406151
    Abstract: A method and device for packet data service discovery are described. A mobile device memory stores a packet data services blacklist and a historical blacklist. The packet data services blacklist identifies wireless networks that do not provide packet data services to the mobile device. The packet data services blacklist is based on previous packet data service authentication rejections, is distinct from a voice services blacklist, and is updated in response to newly received packet data service authentication information. The historical blacklist is distinct from the packet data services blacklist and the voice services blacklist. The historical blacklist identifies wireless networks that are no longer in the packet data services blacklist and were once in the packet data services blacklist within a particular time period. No advance knowledge of data services roaming agreements is required, and unnecessary network access can be avoided, which in turn saves network resources and capacity.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: March 26, 2013
    Assignee: Research In Motion Limited
    Inventors: Muhammad Khaledul Islam, Asif Hossain
  • Patent number: 8346252
    Abstract: A method and apparatus for best service rescan scheduling on a mobile device operating in an EVDO hybrid mode, the method comprising the steps of: blocking a best service rescan on the mobile device if the mobile device in an EVDO traffic state, the mobile device characterized by blocking means, the blocking means enabled to block a best service rescan on the mobile device if the mobile device in an EVDO traffic state.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: January 1, 2013
    Assignee: Research In Motion Limited
    Inventors: Wen Zhao, Asif Hossain, Shahid Rasul Chaudry
  • Publication number: 20120309342
    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: Application
    Filed: August 13, 2012
    Publication date: December 6, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Muhammad Khaledul ISLAM, Asif HOSSAIN
  • Publication number: 20120294286
    Abstract: A method and apparatus of optimizing transitioning between EVDO and CDMA 1X 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 1X 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: Application
    Filed: August 6, 2012
    Publication date: November 22, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Shahid Rasul Chaudry, Grace T.Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
  • Patent number: 8311594
    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: March 2, 2012
    Date of Patent: November 13, 2012
    Assignee: Research In Motion Limited
    Inventors: Muhammad Khaledul Islam, Asif Hossain
  • Patent number: 8310992
    Abstract: Method and apparatus for data access for a mobile terminal comprising a module for determining whether first and second modes of wireless network coverage is available, a module for selecting the first mode if available, a module for attempting access via the second mode on failure to establish access via the first mode and a module for monitoring availability of the first mode. Even when a connection is established via the second mode, availability of the first mode is monitored and access attempted, when second mode connection is idle.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: November 13, 2012
    Assignee: Research In Motion Limited
    Inventors: Asif Hossain, David Po-Hwa Ma
  • Patent number: 8270936
    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: Grant
    Filed: September 19, 2011
    Date of Patent: September 18, 2012
    Assignee: Research In Motion Limited
    Inventors: Muhammad Khaledul Islam, Asif Hossain
  • Patent number: 8260295
    Abstract: A method and apparatus of optimizing transitioning between EVDO and CDMA 1X 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 1X 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: July 19, 2010
    Date of Patent: September 4, 2012
    Assignee: Research In Motion Limited
    Inventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
  • Publication number: 20120208538
    Abstract: A method and apparatus of optimizing transitioning between EVDO and CDMA 1X 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 1X 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: Application
    Filed: April 25, 2012
    Publication date: August 16, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Shahid Rasul Chaudry, Grace T.Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
  • Publication number: 20120184270
    Abstract: A method and apparatus for best service rescan scheduling on a mobile device operating in an EVDO hybrid mode, the method comprising the steps of: blocking a best service rescan on the mobile device if the mobile device in an EVDO traffic state, the mobile device characterized by blocking means, the blocking means enabled to block a best service rescan on the mobile device if the mobile device in an EVDO traffic state.
    Type: Application
    Filed: March 28, 2012
    Publication date: July 19, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Wen ZHAO, Asif HOSSAIN, Shahid CHAUDRY