Patents by Inventor Kwangho Byun

Kwangho Byun 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: 11394756
    Abstract: Described herein are systems and methods for improved transitions continuity between wireless protocol states. One embodiment relates to a method including, at a user equipment (“UE”), establishing a connection to a first wireless network in accordance with a first wireless communication protocol, wherein the first wireless communication protocol is used for voice communications and data communications between the UE and the first wireless network, receiving a user request to disable the voice communications with the first wireless network, registering for voice communications with a second wireless network in accordance with a second wireless communication protocol, and maintaining the connection to the first wireless network to continue data communications between the UE and the first wireless network, wherein the UE simultaneously operates in the first wireless communication protocol and the second wireless communication protocol.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: July 19, 2022
    Assignee: Apple Inc.
    Inventors: Harshit Chuttani, Someet Lal, Kwangho Byun
  • Patent number: 10225777
    Abstract: A user equipment (UE), base station and a corresponding method for receiving historical data from a diagnostic server, receiving location data of the UE, determining a probability of a failed handover during a call based on the historical data and the location data, comparing the probability of the failed handover to a threshold value and initiating a call handover to a wireless local area network when the probability of the failed handover exceeds the threshold value. Also, a UE, base station and corresponding method for determining if one or more UEs have an active voice over WiFi call or if the UEs are registered with a Internet protocol (“IP”) multimedia subsystem (“IMS”) over WiFi and biasing a cell reselection procedure of the UE to select a cell of a packet switched network such as LTE.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: March 5, 2019
    Assignee: APPLE INC.
    Inventors: Ajoy K. Singh, Deepankar Bhattacharjee, Raj S. Chaugule, Sanjay K. Verma, Kwangho Byun
  • Publication number: 20170094574
    Abstract: A user equipment (UE), base station and a corresponding method for receiving historical data from a diagnostic server, receiving location data of the UE, determining a probability of a failed handover during a call based on the historical data and the location data, comparing the probability of the failed handover to a threshold value and initiating a call handover to a wireless local area network when the probability of the failed handover exceeds the threshold value. Also, a UE, base station and corresponding method for determining if one or more UEs have an active voice over WiFi call or if the UEs are registered with a Internet protocol (“IP”) multimedia subsystem (“IMS”) over WiFi and biasing a cell reselection procedure of the UE to select a cell of a packet switched network such as LTE.
    Type: Application
    Filed: May 27, 2016
    Publication date: March 30, 2017
    Inventors: Ajoy K. SINGH, Deepankar Bhattacharjee, Raj S. Chaugule, Sanjay K. Verma, Kwangho Byun
  • Patent number: 9485742
    Abstract: In order to facilitate communication in a wireless network, an accessibility issue in the wireless network may be detected. For example, if an electronic device is near the boundary between two adjacent cells in the cellular-telephone network, the signal power of signals from a current cell or connection may decrease. Concurrently, the maximum transmit power of the electronic device may be constrained by a thermal limit of the electronic device. When this occurs, the connection may be lost unless remedial action is taken. Therefore, in response to this condition, the electronic device may temporarily increase the maximum transmit power to allow the electronic device to communicate with the cellular-telephone network so that the connection may be transitioned to another cell or connection. In this way, the communication technique may restore the communication performance and avoid a dropped call, which will improve the user experience and customer satisfaction.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: November 1, 2016
    Assignee: Apple Inc.
    Inventors: Kwangho Byun, Rajesh Ambati, Syed A. Rahim, Someet K. Lal
  • Publication number: 20160095151
    Abstract: Described herein are systems and methods for improved transitions continuity between wireless protocol states. One embodiment relates to a method including, at a user equipment (“UE”), establishing a connection to a first wireless network in accordance with a first wireless communication protocol, wherein the first wireless communication protocol is used for voice communications and data communications between the UE and the first wireless network, receiving a user request to disable the voice communications with the first wireless network, registering for voice communications with a second wireless network in accordance with a second wireless communication protocol, and maintaining the connection to the first wireless network to continue data communications between the UE and the first wireless network, wherein the UE simultaneously operates in the first wireless communication protocol and the second wireless communication protocol.
    Type: Application
    Filed: September 30, 2014
    Publication date: March 31, 2016
    Inventors: Harshit CHUTTANI, Someet Lal, Kwangho Byun
  • Patent number: 8958777
    Abstract: Automatic caller switching in a cellular voice call. A first voice call may be initiated between a first wireless user equipment (UE) device and a second UE via a cellular network. An indication may be received to switch calling parties for the first voice call. A second voice call may be established between the first UE and the second UE via the cellular network in response to the indication to switch calling parties for the first voice call. The calling and called parties may be reversed (switched) for the second voice call relative to the first voice call. The first voice call may be disconnected.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: February 17, 2015
    Assignee: Apple Inc.
    Inventors: Gencer Cili, Devrim Varoglu, Kwangho Byun
  • Publication number: 20140194134
    Abstract: In order to facilitate communication in a wireless network, an accessibility issue in the wireless network may be detected. For example, if an electronic device is near the boundary between two adjacent cells in the cellular-telephone network, the signal power of signals from a current cell or connection may decrease. Concurrently, the maximum transmit power of the electronic device may be constrained by a thermal limit of the electronic device. When this occurs, the connection may be lost unless remedial action is taken. Therefore, in response to this condition, the electronic device may temporarily increase the maximum transmit power to allow the electronic device to communicate with the cellular-telephone network so that the connection may be transitioned to another cell or connection. In this way, the communication technique may restore the communication performance and avoid a dropped call, which will improve the user experience and customer satisfaction.
    Type: Application
    Filed: January 10, 2013
    Publication date: July 10, 2014
    Applicant: APPLE INC.
    Inventors: Kwangho Byun, Rajesh Ambati, Syed A. Rahim, Someet K. Lal
  • Publication number: 20140171033
    Abstract: Automatic caller switching in a cellular voice call. A first voice call may be initiated between a first wireless user equipment (UE) device and a second UE via a cellular network. An indication may be received to switch calling parties for the first voice call. A second voice call may be established between the first UE and the second UE via the cellular network in response to the indication to switch calling parties for the first voice call. The calling and called parties may be reversed (switched) for the second voice call relative to the first voice call. The first voice call may be disconnected.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Applicant: APPLE INC.
    Inventors: Gencer Cili, Devrim Varoglu, Kwangho Byun