Patents by Inventor Hao Xue
Hao Xue 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).
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Patent number: 8472375Abstract: 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: GrantFiled: October 20, 2008Date of Patent: June 25, 2013Assignee: Research In Motion LimitedInventors: Asif Hossain, Hao Xue, Shahid Chaudry, Wen Zhao
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Patent number: 8447877Abstract: In accordance with the teachings described herein, systems and methods are provided for always-on wireless IP communication. An access provider network (APN) that includes an always-on packet data serving node (PDSN) may be used to communicate over a wireless communication link with a mobile station. The PDSN may include an inactivity timer and may be used to set the inactivity timer to an inactivity timer starting value and send a starting value estimate to the mobile station over the wireless communication link, wherein the starting value estimate is a function of the inactivity timer starting value. The mobile station may include an inactivity timer estimate and may be used to receive the starting value estimate and set the inactivity timer estimate to the starting value estimate. The mobile station may also be used to reset the inactivity timer estimate to the starting value estimate when the mobile station communicates with the APN.Type: GrantFiled: February 11, 2011Date of Patent: May 21, 2013Assignee: Research In Motion LimitedInventors: Hao Xue, William Daniel Willey, M. Khaledul Islam, Shahid Chaudry
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Patent number: 8364199Abstract: Methods are provided for a multi-mode mobile station to perform multi-mode system selection using a multi-mode system selection algorithm as a function of multi-mode overlay information. The multi-mode overlay information includes a plurality of associations, each association being between a respective set of systems that serve at least a common geographical area, at least some of the associations being between systems using differing radio access technology. Methods are also provided for a system to prepare multi-mode overlay information that includes a plurality of associations and send the multi-mode overlay information to the mobile station.Type: GrantFiled: January 26, 2007Date of Patent: January 29, 2013Assignee: Research In Motion LimitedInventors: Hao Xue, M. Khaledul Islam, William Daniel Willey
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Patent number: 8260312Abstract: A method and apparatus for tracking location requests. The apparatus includes a storage device; a display and a processor configured to receive a location request and write location request data to a storage device.Type: GrantFiled: February 19, 2009Date of Patent: September 4, 2012Assignee: Research In Motion LimitedInventors: Hao Xue, M. Khaledul Islam
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Publication number: 20120108235Abstract: 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: ApplicationFiled: January 11, 2012Publication date: May 3, 2012Applicant: RESEARCH IN MOTION LIMITEDInventors: Hao Xue, M. Khaledul Islam, William Daniel Willey
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Patent number: 8121637Abstract: A system and method for establishing and maintaining an “always-on” data connection to a wireless network through the use of a back off timer and a service check timer is disclosed. The back off timer is initialized to a determined value when a connection is not established. When the timer expires, a connection attempt is made. As further connection attempts are made, the back off timer is set to ever-increasing values. When the data connection is established, the service check timer is initialized. The data connection status is determined at the expiry of the service check timer. When, at the expiry of the service check timer, the data connection is determined to be lost, the connection method is employed.Type: GrantFiled: October 15, 2010Date of Patent: February 21, 2012Assignee: Research In Motion LimitedInventors: Wen Zhao, Shahid R. Chaudry, T. L. Trevor Plestid, Hao Xue, Grace T. Y. Yeung, Clifford W. Yanoshewski
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Patent number: 8116765Abstract: 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: GrantFiled: February 11, 2009Date of Patent: February 14, 2012Assignee: Research In Motion LimitedInventors: Hao Xue, M. Khaledul Islam, William Daniel Willey
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Patent number: 7991397Abstract: 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: GrantFiled: February 12, 2009Date of Patent: August 2, 2011Assignee: Research In Motion LimitedInventors: William Daniel Willey, M. Khaledul Islam, Asif Hossain, Kwong Hang Chan, Rene Purnadi, Hao Xue, Shahid Chaudry
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Publication number: 20110134784Abstract: In accordance with the teachings described herein, systems and methods are provided for always-on wireless IP communication. An access provider network (APN) that includes an always-on packet data serving node (PDSN) may be used to communicate over a wireless communication link with a mobile station. The PDSN may include an inactivity timer and may be used to set the inactivity timer to an inactivity timer starting value and send a starting value estimate to the mobile station over the wireless communication link, wherein the starting value estimate is a function of the inactivity timer starting value. The mobile station may include an inactivity timer estimate and may be used to receive the starting value estimate and set the inactivity timer estimate to the starting value estimate. The mobile station may also be used to reset the inactivity timer estimate to the starting value estimate when the mobile station communicates with the APN.Type: ApplicationFiled: February 11, 2011Publication date: June 9, 2011Applicant: RESEARCH IN MOTION LIMITEDInventors: Hao Xue, William Daniel Willey, M. Khaledul Islam, Shahid Chaudry
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Patent number: 7912977Abstract: In accordance with the teachings described herein, systems and methods are provided for always-on wireless IP communication. An access provider network (APN) that includes an always-on packet data serving node (PDSN) may be used to communicate over a wireless communication link with a mobile station. The PDSN may include an inactivity timer and may be used to set the inactivity timer to an inactivity timer starting value and send a starting value estimate to the mobile station over the wireless communication link, wherein the starting value estimate is a function of the inactivity timer starting value. The mobile station may include an inactivity timer estimate and may be used to receive the starting value estimate and set the inactivity timer estimate to the starting value estimate. The mobile station may also be used to reset the inactivity timer estimate to the starting value estimate when the mobile station communicates with the APN.Type: GrantFiled: July 11, 2008Date of Patent: March 22, 2011Assignee: Research In Motion LimitedInventors: Hao Xue, William Daniel Willey, M. Khaledul Islam, Shahid Chaudry
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Publication number: 20110058476Abstract: Techniques for controlling wireless network operations associated with a flow control process of a wireless network involving a data session established between a mobile station and a service node. The network processor examines quality of service (QoS) data associated with the data session. The network processor causes the flow control process to be bypassed for the mobile station based on the QoS data indicating that the data session is associated with a predetermined traffic class (e.g. background traffic class). This serves to prohibit the flow control process from stopping the flow of data packets in the data session without terminating the data session based on detection of an out-of-coverage condition. Otherwise, the network processor allows the flow control process to be performed for the mobile station based on the QoS data indicating that the data session is not associated with the predetermined traffic class.Type: ApplicationFiled: November 10, 2010Publication date: March 10, 2011Applicant: RESEARCH IN MOTION LIMITEDInventors: William Daniel Willey, Muhammad Khaledul Islam, Shahid Rasul Chaudry, Hao Xue
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Publication number: 20110034199Abstract: A system and method for establishing and maintaining an “always-on” data connection to a wireless network through the use of a back off timer and a service check timer is disclosed. The back off timer is initialized to a determined value when a connection is not established. When the timer expires, a connection attempt is made. As further connection attempts are made, the back off timer is set to ever-increasing values. When the data connection is established, the service check timer is initialized. The data connection status is determined at the expiry of the service check timer. When, at the expiry of the service check timer, the data connection is determined to be lost, the connection method is employed.Type: ApplicationFiled: October 15, 2010Publication date: February 10, 2011Applicant: RESEARCH IN MOTION LIMITEDInventors: Wen ZHAO, Shahid R. CHAUDRY, T. L. Trevor PLESTID, Hao XUE, Grace T.Y. YEUNG, Clifford W. YANOSHEWSKI
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Patent number: 7881195Abstract: Methods and apparatus for controlling wireless network operations associated with a flow control process which terminates data communications to a mobile station based on an out-of-coverage condition between the mobile station and a wireless communication network. In the wireless communication network, an indication is identified which indicates whether a mobile station utilizes an always-on connection for a data service. Based on the indication indicating that the mobile station utilizes the always-on connection, the flow control process is bypassed. Otherwise, the flow control process is performed. The always-on connection may be utilized for an e-mail application for the mobile station and involve a Point-to-Point Protocol (PPP) session.Type: GrantFiled: November 26, 2008Date of Patent: February 1, 2011Assignee: Research In Motion LimitedInventors: William Daniel Willey, Muhammad Khaledul Islam, Shahid Rasul Chaudry, Hao Xue
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Patent number: 7856213Abstract: The present invention provides methods, systems, and devices for selective override of do-not-disturb in a wireless communications network, in which a user is provided with the option to query and modify the ignoring of do-not-disturb (DnD) for certain reasons. In some embodiments, DnD is ignored when an incoming call is an urgent call. In other embodiments DnD is ignored when an incoming call is an emergency call. In some embodiments a call processing server manages and performs selective override of do-not-disturb in an OMA compatible system. In yet other embodiments, a mobile device is adapted to send to a dispatch network a request to query or set an ignoreDnD flag, along with associated ignoreDnD reasons.Type: GrantFiled: February 27, 2004Date of Patent: December 21, 2010Assignee: Research In Motion LimitedInventors: Hao Xue, Muhammad Kilaledul Islam
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Publication number: 20100265860Abstract: A method and apparatus for saving network resources in a CDMA2000 network, the method comprising the steps of receiving a data packet for a wireless data device at a base station controller in the CDMA2000 network; determining a frame transport capability of a forward common channel; checking whether the data packet falls within the frame transport capability; and if the data packet falls within the frame transport capability, encapsulating the data packet as a data burst message; and sending the data burst message over the forward common channel, wherein the sending step over the forward common channel precludes a dedicated data traffic channel being established for the data packet thereby saving network resources on the CDMA2000 network.Type: ApplicationFiled: July 2, 2010Publication date: October 21, 2010Applicant: RESEARCH IN MOTION LIMITEDInventors: Hao Xue, M. Khaledul Islam, Kenneth J. Liang
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Publication number: 20100265908Abstract: One illustrative method of for use in controlling network resources in a wireless network involves assigning, from a pool of IP addresses, a temporary IP address for a mobile station in the wireless network; calculating a ratio or percentage of the number of IP addresses and the total number of IP addresses in the pool; setting a timer value for the mobile station to an initial value that depends on the ratio or percentage of IP addresses such that, as the ratio or percentage increases, the initial value decreases; causing the temporary IP address and the timer value to be sent to the mobile station, which is adapted to register the temporary IP address with a home agent for IP mobility service; and communicating a termination request which terminates the IP mobility service if no request for re-registration is received from the mobile station upon expiration of the timer value.Type: ApplicationFiled: June 28, 2010Publication date: October 21, 2010Applicant: Research In Motion LimitedInventors: Hao Xue, Muhammad Khaledul Islam
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Patent number: 7818025Abstract: A system and method for establishing and maintaining an “always-on” data connection to a wireless network through the use of a back off timer and a service check timer is disclosed. The back off timer is initialized to a determined value when a connection is not established. When the timer expires, a connection attempt is made. As further connection attempts are made, the back off timer is set to ever-increasing values. When the data connection is established, the service check timer is initialized. The data connection status is determined at the expiry of the service check timer. When, at the expiry of the service check timer, the data connection is determined to be lost, the connection method is employed.Type: GrantFiled: June 16, 2003Date of Patent: October 19, 2010Assignee: Research In Motion LimitedInventors: Wen Zhao, Shahid R. Chaudry, T. L. Trevor Plestid, Hao Xue, Grace T. Y. Yeung, Clifford W. Yanoshewski
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Methods and apparatus for the communication of network capability information over a traffic channel
Patent number: 7796557Abstract: In one illustrative example, when a mobile station operative for communications in a wireless communication network is engaged in a call, an in-traffic channel message is transmitted from a base station to the mobile station. The message includes information indicative of whether the wireless network supports a predetermined concurrent service or feature. The predetermined concurrent service or feature may be a mobile-requested Quality of Service (QoS) parameter usage feature or a mobile-initiated position location determination feature. The in-traffic channel message may be an in-traffic system parameter message, a general handoff direction message, or a universal handoff direction message, as examples. Preferably, the wireless network is a cdma2000-type network. Since the mobile station is made aware of such information, more efficient operation may be realized.Type: GrantFiled: January 5, 2005Date of Patent: September 14, 2010Assignee: Research In Motion LimitedInventors: Hao Xue, William Daniel Willey, Muhammad Khaledul Islam -
Publication number: 20100210281Abstract: A method and apparatus for tracking location requests. The apparatus includes a storage device; a display and a processor configured to receive a location request and write location request data to a storage device.Type: ApplicationFiled: February 19, 2009Publication date: August 19, 2010Applicant: RESEARCH IN MOTION LIMITEDInventors: Hao XUE, M. Khaledul ISLAM
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Publication number: 20100177705Abstract: Methods are provided for transitioning between SIP and MIP. Mobile devices, upon detecting a new system, automatically attempt a MIP session to avoid the default position of SIP. A history is maintained of systems visited, and for systems that did not support MIP in the past, a MIP session is not attempted, but rather SIP is initiated from the start.Type: ApplicationFiled: March 29, 2010Publication date: July 15, 2010Applicant: RESEARCH IN MOTION LIMITEDInventors: M. KHALEDUL ISLAM, HAO XUE, JIN KIM