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: 7970429
    Abstract: Methods and apparatus for selecting a base station transceiver system for communication with a Third Generation (3G) (or better) mobile station are described. In one illustrative example, one or more base station transceiver systems are identified for communication with the mobile station through a scanning process. A first base station transceiver system is identified as providing a Third Generation (3G) communication service or better, whereas a second base station transceiver system is identified as failing to provide the 3G or better communication service (e.g. it may provide a Second Generation (2G) communication service). The first system is selected for communication over the second system based at least in part on identifying that the second system fails to provide the 3G or better communication service.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: June 28, 2011
    Assignee: Research In Motion Limited
    Inventors: M. Khaledul Islam, Asif Hossain
  • Publication number: 20110103381
    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: detecting an EVDO received signal at the hybrid access terminal; and delaying a connection timer at the hybrid access terminal for connecting to the EVDO system. The apparatus being a hybrid access terminal adapted for optimizing transitioning between EVDO and CDMA 1X systems, the hybrid access terminal having a radio subsystem adapted to communicate with a network; a radio processor having a digital signal processor and adapted to interact with the radio subsystem; memory; a user interface; a processor adapted to run user applications and interact with the memory, the radio and the user interface and adapted to run applications, the hybrid access terminal characterized by having means for: detecting an EVDO received signal at the hybrid access terminal; and delaying a connection timer at the hybrid access terminal for connecting to the EVDO system.
    Type: Application
    Filed: January 12, 2011
    Publication date: May 5, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Shahid Rasul Chaudry, Grace T.Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
  • Patent number: 7894375
    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: detecting an EVDO received signal at the hybrid access terminal; and delaying a connection timer at the hybrid access terminal for connecting to the EVDO system. The apparatus being a hybrid access terminal adapted for optimizing transitioning between EVDO and CDMA 1X systems, the hybrid access terminal having a radio subsystem adapted to communicate with a network; a radio processor having a digital signal processor and adapted to interact with the radio subsystem; memory; a user interface; a processor adapted to run user applications and interact with the memory, the radio and the user interface and adapted to run applications, the hybrid access terminal characterized by having means for: detecting an EVDO received signal at the hybrid access terminal; and delaying a connection timer at the hybrid access terminal for connecting to the EVDO system.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: February 22, 2011
    Assignee: Research In Motion Limited
    Inventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
  • Publication number: 20110039529
    Abstract: A method and apparatus for changing monitoring of a cellular data connection at a mobile device, the method checking, using a processor at the mobile device, whether the mobile device is connected to both the cellular data connection and an alternative data connection; and if yes, extending the slot cycle or suspending monitoring of a slot for the cellular data connection at the mobile device.
    Type: Application
    Filed: April 13, 2010
    Publication date: February 17, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Jin Kim, Asif Hossain, Denis Fedotenko, David P. Ma
  • Publication number: 20110026489
    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: Application
    Filed: October 8, 2010
    Publication date: February 3, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Asif Hossain, Muhammad Khaledul Islam, Jin Kim
  • Patent number: 7835335
    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: May 5, 2009
    Date of Patent: November 16, 2010
    Assignee: Research In Motion Limited
    Inventors: Asif Hossain, Muhammad Khaledul Islam, Jin Kim
  • Publication number: 20100285804
    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: July 19, 2010
    Publication date: November 11, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Shahid Rasul Chaudry, Grace T .Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
  • Publication number: 20100254269
    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: Application
    Filed: June 18, 2010
    Publication date: October 7, 2010
    Applicant: Research in Motion Limited
    Inventors: Asif Hossain, David Ma
  • Patent number: 7804809
    Abstract: Method, and associated apparatus, for operating a hybrid access terminal operable in a CDMA 1x/EVDO hybrid communication session system. The hybrid access terminal is operable to communicate pursuant to an EVDO communication session and to a PPP communication session. The opening and closing of the communication sessions are independent of one another. Opening of one session does not require opening of another of the sessions. And, closing of one of the sessions does not require closing of the other of the sessions.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: September 28, 2010
    Assignee: Research In Motion Limited
    Inventors: Asif Hossain, Shailesh Kaul, Muhammad Khaledul Islam, Suresh Periyalwar, Grace Yeung, Shahid Chaudry
  • Publication number: 20100222034
    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: Application
    Filed: February 27, 2009
    Publication date: September 2, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: M. Khaledul ISLAM, ASIF HOSSAIN
  • Publication number: 20100211993
    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: Application
    Filed: January 22, 2010
    Publication date: August 19, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Muhammad Khaledul ISLAM, Asif HOSSAIN
  • Publication number: 20100190523
    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: Application
    Filed: April 6, 2010
    Publication date: July 29, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
  • Patent number: 7761097
    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: October 31, 2005
    Date of Patent: July 20, 2010
    Assignee: Research In Motion Limited
    Inventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
  • Patent number: 7756075
    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: September 15, 2005
    Date of Patent: July 13, 2010
    Assignee: Research In Motion Limited
    Inventors: Asif Hossain, David Ma
  • Patent number: 7720482
    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: October 31, 2005
    Date of Patent: May 18, 2010
    Assignee: Research In Motion Limited
    Inventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
  • Publication number: 20100111064
    Abstract: Method, and associated apparatus, for operating a hybrid access terminal operable in a CDMA 1x/EVDO hybrid communication session system. The hybrid access terminal is operable to communicate pursuant to an EVDO communication session and to a PPP communication session. The opening and closing of the communication sessions are independent of one another. Opening of one session does not require opening of another of the sessions. And, closing of one of the sessions does not require closing of the other of the sessions.
    Type: Application
    Filed: January 6, 2010
    Publication date: May 6, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: ASIF HOSSAIN, SHAILESH KAUL, MUHAMMAD KHALEDUL ISLAM, SURESH PERIYALWAR, GRACE YEUNG, SHAHID CHAUDRY
  • Patent number: 7701872
    Abstract: A method and apparatus for packet data service discovery are described. A current blacklist comprising entries for wireless networks not providing packet data services (i.e. either not supporting the services or not having a packet data services roaming agreement) is kept in memory of the mobile device based on previous attempts to connect to such networks. Current preferred roaming lists identify whether a given wireless network can be acquired, but do not identify whether a data services roaming agreement exists. At least one of the following advantages is provided: no advance knowledge of data services roaming agreements is required; no mobile device software change is required when the data services roaming agreement changes; mobile device can notify a server of a wireless network status change; significant power savings at the mobile device; and avoid unnecessary network access, which in turn saves network resources and capacity.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: April 20, 2010
    Assignee: Research In Motion Limited
    Inventors: Khaledul M. Islam, Asif Hossain
  • Publication number: 20100085944
    Abstract: A method and system for obtaining reverse channel resources for a mobile device, the method filtering a closed loop correction power value; calculating a data rate utilizing the filtered closed loop correction power value; and sending a supplemental channel request message, including the calculated data rate, to a base station transceiver system.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 8, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Rakesh Gupta, Asif Hossain
  • Patent number: 7656852
    Abstract: Method, and associated apparatus, for operating a hybrid access terminal operable in a CDMA 1x/EVDO hybrid communication session system. The hybrid access terminal is operable to communicate pursuant to an EVDO communication session and to a PPP communication session. The opening and closing of the communication sessions are independent of one another. Opening of one session does not require opening of another of the sessions. And, closing of one of the sessions does not require closing of the other of the sessions.
    Type: Grant
    Filed: December 13, 2008
    Date of Patent: February 2, 2010
    Assignee: Research In Motion Limited
    Inventors: Asif Hossain, Shailesh Kaul, Muhammad Khaledul Islam, Suresh Periyalwar, Grace Yeung, Shahid Chaudry
  • Publication number: 20100022267
    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: Application
    Filed: July 25, 2008
    Publication date: January 28, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Asif Hossain, Padakandla Krishna Rao