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).

  • Patent number: 9730253
    Abstract: Methods, apparatuses, and systems are described for 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. In one method, a terminating mobile station receives an INVITE and then, if the access network supports neither simultaneous circuit switched (CS) and packet switched (PS) connections nor voice over internet protocol (VoIP), the terminating mobile station transmits a message indicating that a CS bearer is required for a session.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: August 8, 2017
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Craig Bishop, Chen-Ho Chin
  • Patent number: 9713196
    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: Grant
    Filed: December 10, 2014
    Date of Patent: July 18, 2017
    Assignee: BlackBerry Limited
    Inventors: Noun Choi, Stefano Faccin, Chen Ho Chin
  • Publication number: 20170201456
    Abstract: Control of Applications when Third Party Servers encounter difficulties (CATS) is discussed. An example network server that facilitates CATS comprises a processor and a transmitter circuit. The processor is configured to determine a status associated with a third party server and a network load level of a network associated with the network server, select a CATS level that defines one or more restrictions on network traffic associated with the third party server for the third party server based on the third party server status and the network load level, and implement the one or more restrictions on network traffic toward the third party server. The interface is configured to transmit an indicator of the CATS level for the third party server.
    Type: Application
    Filed: June 16, 2015
    Publication date: July 13, 2017
    Inventors: Eric Siow, Chen-Ho Chin, Ana Lucia A. Pinheiro, Puneet Jain, Marta Martinex Tarradell, Muthaiah Muthu Venkatachalam
  • Patent number: 9674734
    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 30, 2016
    Date of Patent: June 6, 2017
    Assignee: BlackBerry Limited
    Inventors: Richard Charles Burbidge, Takashi Suzuki, David Philip Hole, Johanna Lisa Dwyer, Venkata Ratnakar Rao Rayavarapu, Maiyuran Wijayanathan, Stephen McCann, Andrew Mark Earnshaw, Chen Ho Chin
  • Publication number: 20170064530
    Abstract: A method for initiating a Packet Switched emergency call using a user equipment (UE) is presented. The UE includes a plurality of protocol layers. The plurality of protocol layers including an IMS sublayer, a non-access stratum (NAS) layer and an access stratum (AS) layer. The method includes generating an ATTACH REQUEST using the UE. The ATTACH REQUEST has an attach type. The method includes retrieving the attach type of the ATTACH REQUEST using the NAS layer of the UE, and generating an RRC CONNECTION REQUEST. The RRC CONNECTION REQUEST includes an RRC establishment cause based upon the attach type of the attach request.
    Type: Application
    Filed: November 11, 2016
    Publication date: March 2, 2017
    Applicant: BlackBerry Limited
    Inventors: Chen Ho Chin, Richard C. Burbidge
  • Publication number: 20170026877
    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: Application
    Filed: October 4, 2016
    Publication date: January 26, 2017
    Applicant: BlackBerry Limited
    Inventors: Richard Charles BURBIDGE, Takashi SUZUKI, David Philip HOLE, Johanna Lisa DWYER, Venkata Ratnakar Rao Rayavarapu, Maiyuran WIJAYANATHAN, Stephen McCann, Andrew Mark EARNSHAW, Chen Ho CHIN
  • Patent number: 9554315
    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: October 13, 2015
    Date of Patent: January 24, 2017
    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: 9538353
    Abstract: A method for initiating a Packet Switched emergency call using a user equipment (UE) is presented. The UE includes a plurality of protocol layers. The plurality of protocol layers including an IMS sublayer, a non-access stratum (NAS) layer and an access stratum (AS) layer. The method includes generating an ATTACH REQUEST using the UE. The ATTACH REQUEST has an attach type. The method includes retrieving the attach type of the ATTACH REQUEST using the NAS layer of the UE, and generating an RRC CONNECTION REQUEST. The RRC CONNECTION REQUEST includes an RRC establishment cause based upon the attach type of the attach request.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: January 3, 2017
    Assignee: BlackBerry Limited
    Inventors: Chen Ho Chin, Richard C. Burbidge
  • Patent number: 9516567
    Abstract: Methods and apparatus to provide packet switched service continuity during circuit switched fallback operation are described. One example method includes determining a set of access technologies available to a User Equipment (UE); identifying a WLAN access network from the set of access technologies; identifying a 3GPP RAT from the set of access technologies; prioritizing the WLAN access network type with respect to types of 3GPP RAT; and selecting one access technology from amongst the identified WLAN access network and the 3GPP RAT according to the prioritizing.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: December 6, 2016
    Assignee: BlackBerry Limited
    Inventors: Stefano Faccin, Wei Wu, Chen Ho Chin
  • Publication number: 20160345243
    Abstract: Briefly, in accordance with one or more embodiments, a network node of a first Public Land Mobile Network (PLMN) receives a request from a user equipment (UE) for a service to be provided to the UE by the first PLMN, and sends a response to the UE indicating whether the request is accepted or rejected, wherein the response indicates to the UE whether the UE is allowed to repeat the request if the UE connects to a second PLMN that is an equivalent PLMN with the first PLMN.
    Type: Application
    Filed: June 26, 2015
    Publication date: November 24, 2016
    Applicant: Intel Corporation
    Inventors: Robert Zaus, Chen-Ho Chin
  • Patent number: 9497792
    Abstract: A method implemented in a UE. NAS signaling is initiated or performed for an emergency call in order to establish a connection between the UE and one of a plurality of core networks (CNs). In a non-limiting example, the NAS signaling is initiated or performed after the ending of a prior established connection or emergency call. A determination is made whether the UE is already attached for emergency bearer services. Responsive to the UE being already attached for emergency bearer services, a NAS layer of a protocol stack of the UE causes transmission of a UE identification (ID) when requesting a radio resource control (RRC) connection for further NAS signaling. The UE ID includes data which can be used to determine to which CN of the plurality of CNs the connection should be directed.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: November 15, 2016
    Assignee: BlackBerry Limited
    Inventors: Chen Ho Chin, Richard Charles Burbidge
  • Patent number: 9491676
    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: October 13, 2015
    Date of Patent: November 8, 2016
    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
  • Publication number: 20160316399
    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: Application
    Filed: June 30, 2016
    Publication date: October 27, 2016
    Applicant: BlackBerry Limited
    Inventors: Richard Charles BURBIDGE, Takashi SUZUKI, David Philip HOLE, Johanna Lisa DWYER, Venkata Ratnakar Rao Rayavarapu, Maiyuran Wijayanathan, Stephen McCann, Andrew Mark EARNSHAW, Chen Ho CHIN
  • Patent number: 9426697
    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: September 17, 2014
    Date of Patent: August 23, 2016
    Assignee: BlackBerry Limited
    Inventors: Richard Charles Burbidge, Takashi Suzuki, David Philip Hole, Johanna Lisa Dwyer, Venkata Ratnakar Rao Rayavarapu, Maiyuran Wijayanathan, Stephen McCann, Andrew Mark Earnshaw, Chen Ho Chin
  • Publication number: 20160183156
    Abstract: In some examples, a method in a core network communicatively connected with a first radio access network (RAN) comprising a first network element, and a second RAN comprising a second network element, includes receiving a first Non Access Stratum (NAS) message via the second network element from a User Equipment (UE), where the UE has, with the first network element, a selected IP traffic offload (SIPTO) PDN connection. The mobility management node detects that the UE is connected to the second network element that is different from the first network element that has a first identifying characteristic, where the detecting comprises determining that the first NAS message is received with a second identifying characteristic of the second network element different from the first identifying characteristic associated with the SIPTO PDN connection.
    Type: Application
    Filed: February 26, 2016
    Publication date: June 23, 2016
    Inventors: Chen Ho Chin, Noun Choi, Stefano Faccin
  • Patent number: 9325937
    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: Grant
    Filed: December 18, 2013
    Date of Patent: April 26, 2016
    Assignee: Intel IP Corporation
    Inventors: Robert Zaus, Chen-ho Chin
  • Patent number: 9301333
    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: Grant
    Filed: September 27, 2011
    Date of Patent: March 29, 2016
    Assignee: BlackBerry Limited
    Inventors: Chen Ho Chin, Noun Choi, Stefano Faccin
  • Publication number: 20160056992
    Abstract: Embodiments of protocol converters (PCs), and related techniques, are disclosed herein. In some embodiments, a PC may include reception logic to receive Extensible Markup Language (XML) data transmitted by an Application Function (AF), conversion logic to convert the XML data into a Diameter Protocol (DP) message, and provision logic to provide the DP message for transmission to a Policy and Charging Rules Function (PCRF). Other embodiments may be disclosed and/or claimed.
    Type: Application
    Filed: March 28, 2014
    Publication date: February 25, 2016
    Inventors: Meghashree Kedalagudde, Chen-Ho Chin, Muthaiah Venkatachalam
  • Publication number: 20160037418
    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: Application
    Filed: October 13, 2015
    Publication date: February 4, 2016
    Applicant: 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
  • Publication number: 20160021570
    Abstract: Some demonstrative embodiments include devices, systems and methods of providing offloadability information to a User Equipment (UE). For example, a core network (CN) may provide to the UE Packet Data Network (PDN) offloadability information corresponding to one or more PDN connections of the UE, the PDN offloadability information indicating which PDN connection of the one or more PDN connections is able to be offloaded to a Wireless Local Area Network (WLAN).
    Type: Application
    Filed: September 30, 2015
    Publication date: January 21, 2016
    Inventors: Alexander Sirotkin, Alexandre S. Stojanovski, Vivek Gupta, Chen-Ho Chin