Patents by Inventor Chen-Ho Chin

Chen-Ho Chin 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: 20140323128
    Abstract: This disclosure relates generally to radio access technology information storage in a mobile network. The device, method, and/or system may include receiving, by a network node of a mobile network, a request from user equipment related to one or more radio access technologies and transmitting, by the network node in response to the request, a reply message to the user equipment including, for each of the one or more radio access technologies, an indication of an amount of electronic storage the network node may allocate to storage of information related to the one or more radio access technologies.
    Type: Application
    Filed: December 18, 2013
    Publication date: October 30, 2014
    Inventors: Robert Zaus, Chen-ho Chin
  • Patent number: 8874113
    Abstract: A method is provided for managing a priority call in a serving cell. The method comprises, when a priority call is in progress in the serving cell, performing at least one of preventing at least one non-priority call from being handed over into the serving cell and preventing at least one non-priority call from being initiated in the serving cell.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: October 28, 2014
    Assignee: BlackBerry Limited
    Inventors: Chen-Ho Chin, Stefano M. Faccin, Muhammad Khaledul Islam, Mo-Han Fong
  • Patent number: 8873407
    Abstract: A method performed by user equipment (UE) includes receiving a request to access a service unavailable through a first network cell associated with the UE, and receiving a message from an access device associated with the first network cell, wherein the message identifies a plurality of second network cells providing the service.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: October 28, 2014
    Assignee: BlackBerry Limited
    Inventors: Richard Charles Burbidge, Takashi Suzuki, David Philip Hole, Johanna Lisa Dwyer, Venkata Ratnakar Rao Rayavarapu, Maiyuran Wijayanathan, Stephen McCann, Mark Earnshaw, Chen-Ho Chin
  • Patent number: 8873449
    Abstract: Example methods and apparatus to maintain call continuity are disclosed. A disclosed example method to authorize a request with service information (SI), including detecting whether the SI pertains to an existing Internet Packet (IP) flow, when the SI pertains to an existing IP flow, detecting whether the existing IP flow includes circuit switched (CS) media, and when the existing IP flow includes CS media, determining a response to the request independent of a CS media indicator.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: October 28, 2014
    Assignee: BlackBerry Limited
    Inventors: Stefano Faccin, Jan Hendrik Lucas Bakker, Chen Ho Chin, Richard Charles Burbidge
  • Patent number: 8861433
    Abstract: In an access device associated with a first network cell, a method for enabling user equipment (UE) to obtain a service unavailable through the first network cell includes receiving a request for the UE to access the service, and identifying, in a message to the UE, a plurality of second network cells providing the service.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: October 14, 2014
    Assignee: BlackBerry Limited
    Inventors: Richard Charles Burbidge, Takashi Suzuki, David Philip Hole, Johanna Lisa Dwyer, Venkata Ratnakar Rao Rayavarapu, Maiyuran Wijayanathan, Stephen McCann, Mark Earnshaw, Chen Ho Chin
  • Patent number: 8837357
    Abstract: Methods and apparatus for mobile voice service management are described. An example method includes receiving a mobile network request for registering with a mobile network and responsive to the mobile network request, sending a response including an area identity list and an identifier indicating whether an area identified in the tracking area identity list supports a service.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: September 16, 2014
    Assignee: BlackBerry Limited
    Inventors: Johanna Lisa Dwyer, Richard Charles Burbidge, Stefano Faccin, Chen Ho Chin
  • Publication number: 20140241246
    Abstract: Methods and apparatuses are provided for transmitting information from a serving network element to a mobile terminal in a mobile communications network. The serving network element transmits indication indicating whether a voice over internet protocol (VoIP) via packet switched (PS) session is supported, to the mobile terminal, via an eNode B, during one of a tracking area updating (TAU) procedure and an attach procedure. A Voice Call Continuity (VCC) capability of the mobile terminal is received from the mobile terminal. It is determined whether or not to anchor a call based on the received VCC capability of the mobile terminal. The indication is determined based on a capability of the serving network element.
    Type: Application
    Filed: May 2, 2014
    Publication date: August 28, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chen-Ho CHIN, Craig Bishop, Gert Jan Van Lieshout
  • Publication number: 20140233463
    Abstract: Methods and apparatus for voice domain operation are described herein.
    Type: Application
    Filed: April 30, 2014
    Publication date: August 21, 2014
    Inventors: Stefano Faccin, Chen Ho Chin, Richard Charles Burbidge
  • Patent number: 8755329
    Abstract: Methods and apparatus for voice domain operation are described herein. One example method includes determining that an LTE network is not preferred for voice service provision; storing an identification of the LTE network that is not preferred for voice service provision; and accessing the stored identification of the LTE network that is not preferred for voice service provision.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: June 17, 2014
    Assignee: BlackBerry Limited
    Inventors: Stefano Faccin, Chen Ho Chin, Richard Charles Burbidge
  • Publication number: 20140146685
    Abstract: Example methods and apparatus to maintain call continuity are disclosed. A disclosed example apparatus to control a user equipment (UE) mode includes the UE to initiate a tracking area updating (TAU) procedure in an evolved packet system (EPS) mobility management (EMM) connected (EMM_CONNECTED) mode, a state monitor to identify a lack of a voice service in response to the TAU procedure being successful, and a bearer monitor to identify a bearer context, the UE to stay in the EMM_CONNECTED mode until radio bearers associated with the bearer context are released.
    Type: Application
    Filed: February 4, 2014
    Publication date: May 29, 2014
    Applicant: BlackBerry Limited
    Inventors: Stefano Faccin, Richard Charles Burbidge, Jan Hendrik Lucas Bakker, Chen Ho Chin
  • Publication number: 20140136709
    Abstract: A network node for providing resource management in a wireless network based on indicated application. The network mode is configured to receive a service request message transmitted by a user equipment, the service request message comprising an application identifier associated with a mobile application executable on the user equipment and a request for network resources to be allocated to the mobile application. The network node is also configured to determine whether the network is capable of handling the service request based at least partly upon the application identifier. In response to the determination, the network node transmits to the user equipment a response message indicating whether the network node accepts the request for network resources to be allocated to the mobile application.
    Type: Application
    Filed: November 15, 2012
    Publication date: May 15, 2014
    Applicant: Research In Motion Limited
    Inventors: Chen-Ho Chin, Richard Burbidge, Stefano Faccin, Ozgur Ekici
  • Patent number: 8718043
    Abstract: A mobile communications method and system for signalling information between a mobile terminal and a network element of a mobile communications network. The mobile terminal transmits information relating to the desirability and/or possibility to support Voice Call Continuity (VCC), to the network element during a communication, and the network element receives the information from the mobile terminal to use the information as a basis for deciding whether or not to anchor a call of the mobile terminal.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: May 6, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Chen-Ho Chin, Craig Bishop, Gert Jan Van Lieshout
  • Patent number: 8665828
    Abstract: Example methods and apparatus to maintain call continuity are disclosed. A disclosed example method to control a user equipment (UE) includes the UE initiating a tracking area updating (TAU) procedure in an EMM_CONNECTED mode, identifying a lack of a voice service in response to the TAU procedure being successful, identifying a remaining bearer comprising a bearer context, and the UE staying in the EMM_CONNECTED mode until radio bearers associated with the bearer context are released.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: March 4, 2014
    Assignee: BlackBerry Limited
    Inventors: Stefano Faccin, Jan Hendrik Lucas Bakker, Chen Ho Chin, Richard Charles Burbidge
  • Publication number: 20140057630
    Abstract: A method for receiving information on Tracking Areas (TAs) by a User Equipment (UE) in a communication network is provided. The method includes transmitting to a Mobility Management Entity (MME), an ATTACH REQUEST message in a deregistered state; and receiving, from the MME, an ATTACH ACCEPT message including at least two different types of Tracking Area Identify (TAI) lists that identify TAs. The at least two different types of TAI lists are concatenated in the ATTACH ACCEPT message and each of the at least two different types of TAI lists is variable within a maximum size.
    Type: Application
    Filed: November 5, 2013
    Publication date: February 27, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chen Ho CHIN, Craig BISHOP
  • Patent number: 8645695
    Abstract: A user equipment (UE) device that is able to engage in multiple security contexts contains a key generator to generate one or more authentication keys for authentication of the UE device in a particular security context and a component configured to facilitate storing of the authentication keys in a subscriber identity module (SIM) if an elementary file (EF) structure for the particular security context is available in the SIM and to facilitate storing of the authentication keys in a nonvolatile memory (NVM) of the UE device if the EF structure is not found in the SIM.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: February 4, 2014
    Assignee: BlackBerry Limited
    Inventors: Adrian Buckley, Mariyuran Wijayanathan, Chen-Ho Chin
  • Patent number: 8625506
    Abstract: A user agent (UA), core network (CN) device, and method for a circuit switched (CS) fallback service in an evolved packet system (EPS). In one embodiment, the UA or CN includes a protocol layer having a non-access stratum (NAS). A processor of the UA or CN is configured to promote the NAS to process an EXTENDED SERVICE REQUEST having a service type with a decode value. The decode value identifies an EPS-defined radio resource control (RRC) establishment cause (EC).
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: January 7, 2014
    Assignee: BlackBerry Limited
    Inventor: Chen Ho Chin
  • Patent number: 8606270
    Abstract: A method of operating a communications network and mobile user equipment (UE) in the network includes providing the UE with an algorithm usable with at least one input parameter to derive a quantity of interaction information according to the at least one input parameter, transmitting at least one said input parameter from the network to the UE, using the algorithm with the received at least one input parameter to derive a quantity of interaction information according to the received at least one parameter, and using the derived quantity of interaction information to determine at least one aspect of interaction between the UE and the network.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: December 10, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Chen Ho Chin, Craig Bishop
  • Publication number: 20130308527
    Abstract: A method, system and device are provided for managing LIPA and/or SIPTO connection releases when UE moves out of residential/enterprise network coverage in case service continuity is not supported for the LIPA/SIPTO PDN connection(s). To address problems caused by not providing service continuity for LIPA/SIPTO PDN connections, the PDN connection/PDP context created in the HeNB/HNB by the MME/SGSN includes context information related to the UE indicating whether such connection is a LIPA PDN connection PDN connection or not. In addition, each UE may be configured to reconnect or not reconnect to the PDN corresponding to a certain APN or service, depending on how the PDN connection was disconnected by the network.
    Type: Application
    Filed: September 27, 2011
    Publication date: November 21, 2013
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Chen Ho Chin, Noun Choi, Stefano Faccin
  • Publication number: 20130271555
    Abstract: There is discussed a method of selecting an access domain for receiving a speech and/or video call at a mobile station of a mobile communications network in which calls are routed via a central service control common to a plurality of access domains. The method comprises the central service control transmitting an invite to establish a call to the terminating mobile station; the mobile station deciding on an access domain for receiving the call taking into account the capabilities of the local access network, and transmitting the selected access domain to the central service control; and establishing the call in accordance with the selected access domain.
    Type: Application
    Filed: June 4, 2013
    Publication date: October 17, 2013
    Inventors: Craig BISHOP, Chen-Ho Chin
  • Patent number: 8509841
    Abstract: A user equipment (UE) is provided. The UE comprises a processor configured to receive a broadcast control channel (BCCH) comprising a first indication that a restricted access to a closed subscriber group has been changed and to initiate a signaling procedure based on the first indication.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: August 13, 2013
    Assignee: Research In Motion Limited
    Inventors: Chen Ho Chin, Takashi Suzuki, Richard Charles Burbidge, Gordon Peter Young, Jeffrey William Wirtanen, Muhammad Khaledul Islam, David Philip Hole