Patents by Inventor Yung Choi-Grogan

Yung Choi-Grogan 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).

  • Publication number: 20120214483
    Abstract: A system and methodology that resolves complex mobility handling issues in Long Term evolution (LTE) networks, overlaid with Universal Mobile Telecommunications System (UMTS) macro and UMTS femtocells that share a common UMTS Absolute Radio Frequency Number (UARFCN), is provided. Moreover, an LTE user equipment (UE) includes a femto identification component that differentiates between the UMTS macro and UMTS femtocells by employing Location Area Code (LAC) data. In an aspect, the femto identification component ensures that the LTE UE connects to the UMTS femtocell as soon as the LTE UE enters the UMTS femtocell coverage area, even when the LTE radio frequency (RF) signal is deemed sufficient for communication. Further, the femto identification component ensures that the LTE UE stays connected to the LTE network, as long as possible, while outside of the UMTS femtocell coverage area.
    Type: Application
    Filed: February 22, 2011
    Publication date: August 23, 2012
    Applicant: AT&T MOBILITY II LLC
    Inventors: Yonghui Tong, Inderpreet Singh Ahluwalia, Arthur Brisebois, Yung-Choi Grogan
  • Publication number: 20120188920
    Abstract: Devices and methods are disclosed which supplement a duplex frequency by providing one or more simplex frequencies and distributing data among them. Variations of the disclosed system include a server in communication with a communications device using a duplex channel. The server includes a scheduler that determines when it is no longer optimal to use the single duplex channel, and distributes data among the duplex channel and one or more simplex channels. Before sending this data, the server sends a schedule to the communications device through the duplex channel, so the communications device knows which bits of data are coming through which channels and at which times. A descheduler within the communications device receives the schedule and alerts the communications device to start receiving data on other simplex channels. The descheduler then puts the bits of data in order as they stream in across the duplex and simplex channels.
    Type: Application
    Filed: March 15, 2012
    Publication date: July 26, 2012
    Applicant: AT&T MOBILITY II LLC
    Inventors: Arthur Brisebois, Yung Choi-Grogan, Melvin Frerking, Thomas Keathley, William Mansfield, Alain Ohana, David Shively
  • Publication number: 20110255404
    Abstract: In a wireless communications network, a method includes monitoring a data load associated with at least one base station in the network, determining whether a network usage of a subscriber of the network exceeds a threshold and if the subscriber's network usage exceeds the threshold, reducing a data rate available to the subscriber based at least in part on the data load thus monitored.
    Type: Application
    Filed: December 15, 2010
    Publication date: October 20, 2011
    Inventors: Henry J. Kafka, Yung Choi-Grogan
  • Publication number: 20110124325
    Abstract: A method and apparatus for performing a software upgrade are disclosed. The method determines a plurality of mobile endpoint devices affected by a wireless network access software upgrade, and schedules a deployment of the wireless network access software upgrade. The method transmits a notification to the plurality of mobile endpoint devices, wherein the notification is configured to cause each of the plurality of mobile endpoint devices to store user settings in a memory of each of the plurality of mobile endpoint devices. The method downloads the wireless network access software upgrade wirelessly to the plurality of mobile endpoint devices, wherein the wireless network access software upgrade is configured to cause each of the plurality of mobile endpoint devices to install the wireless network access software upgrade and to restore the user settings from the memory of each of the plurality of mobile endpoint devices.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 26, 2011
    Inventors: Yung Choi-Grogan, Jun Shen, Ming Zhang
  • Publication number: 20110053609
    Abstract: When a call is placed within a femtocell area of coverage, the location of the femtocell is used as the location of the mobile device. The location of the femtocell is stored in the network, and if the call is placed through the femtocell, the location of the femtocell is used to determine the location of the mobile device.
    Type: Application
    Filed: September 2, 2009
    Publication date: March 3, 2011
    Applicant: AT&T MOBILITY II LLC
    Inventor: Yung Choi-Grogan
  • Publication number: 20100150128
    Abstract: Devices and methods are disclosed which supplement a duplex frequency by providing one or more simplex frequencies and distributing a data load among them. Variations of the disclosed system include a server containing a scheduler in communication with a communications device. The server initially communicates with the communications device using a duplex channel. The scheduler determines when it is no longer optimal to use the single duplex channel, and distributes data among the duplex channel and one or more simplex channels. Before sending this data through multiple channels, the server must first send a schedule to the communications device, so the communications device knows which bits of data are coming through which channels at which times. The scheduler compiles this schedule and sends it to the communications device through the duplex channel. A descheduler within the communications device receives the schedule and alerts the communications device to start receiving data on other simplex channels.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 17, 2010
    Applicant: AT&T MOBILITY II LLC
    Inventors: Arthur Brisebois, Yung Choi-Grogan, Melvin Frerking, Thomas Keathley, William Mansfield, Alain Ohana, David Shively
  • Publication number: 20100099393
    Abstract: System(s) and method(s) are provided to manage utilization of radio network technology and display thereof when multiple services and radio network technologies are available to a multi-technology mobile device. Management relies at least in part on a subscriber profile that comprises a network selection profile constructed through market policy, subscriber policy, and application policy for radio technology utilization. Network preference(s) profile is generated on per subscriber, or per subscriber type, basis and is conveyed to a subscriber station over the air. Initial subscriber profile can be delivered at a time of provisioning a multi-technology mobile device, and updated based at least upon subscriber demand, a schedule established by a network operator or service provider, or an event related to coverage area relocation or contracted services.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 22, 2010
    Applicant: AT&T MOBILITY II LLC
    Inventors: Arthur Brisebois, Sharat Chander, Yung Choi Grogan
  • Publication number: 20100099405
    Abstract: System(s) and method(s) are provided to manage utilization of radio network technology and display thereof when multiple services and radio network technologies are available to a multi-technology mobile device. Management relies at least in part on a subscriber profile that comprises a network selection profile constructed through market policy, subscriber policy, and application policy for radio technology utilization. Network preference(s) profile is generated on per subscriber, or per subscriber type, basis and is conveyed to a subscriber station over the air. Initial subscriber profile can be delivered at a time of provisioning a multi-technology mobile device, and updated based at least upon subscriber demand, a schedule established by a network operator or service provider, or an event related to coverage area relocation or contracted services.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 22, 2010
    Applicant: AT&T MOBILITY II LLC
    Inventors: Arthur Brisebois, Sharat Chander, Yung Choi-Grogan
  • Publication number: 20090017802
    Abstract: Providing for detection of a missed mobile paging event, storing data associated with an initiating mobile device as a result of such event, and updating an undelivered call indicator (UDCI) for notification of at least an undelivered call count is described herein. Components can include a gateway routing component that can receive a communications request for a target mobile device, a data storage component that can store information related to an initiating mobile device where the target is deemed unavailable, and a UDCI component facilitating data aggregation related to the undelivered call count. The UDCI data can be selectively provided to independent of the stored information related to an initiating mobile device. The system can thus notify a user of the presence and count of stored information related to initiating mobile devices independent of the user's prior unavailability.
    Type: Application
    Filed: September 25, 2008
    Publication date: January 15, 2009
    Applicant: AT&T MOBILITY II LLC
    Inventors: Ming Zhang, Yung Choi-Grogan, Jun Shen