Patents by Inventor Chien-Chun Huang-Fu

Chien-Chun Huang-Fu 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: 12238790
    Abstract: A method to establish and activate an MA PDU session for data transmission over a selected access is proposed. UE initiates a UE-requested PDU session establishment procedure. Once the UE receives a PDU SESSION ESTABLISHMENT ACCEPT message with ATSSS container IE, the UE can consider the MA PDU session has been activated and user plane resources are successfully established on the selected access. A method to convert an SA PDU session to an MA PDU session for data transmission over a selected access is proposed. UE initiates a UE-requested PDU session modification procedure. Once the UE receives a PDU SESSION MODIFICATION COMMAND message with ATSSS container IE, the UE can consider the MA PDU session has been converted from the SA PDU session and user plane resources are successfully established on the selected access.
    Type: Grant
    Filed: December 7, 2023
    Date of Patent: February 25, 2025
    Assignee: MediaTek Inc.
    Inventors: Yuan-Chieh Lin, Chien-Chun Huang Fu
  • Patent number: 12219650
    Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a first service network utilizing a first RAT or a second service network utilizing a second RAT. The controller sends an indicator of a connection release request to the first service network via the wireless transceiver in response to terminating a first communication service with the first service network or in response to leaving the first service network for the second service network. Also, the controller releases a Radio Resource Control (RRC) connection with the first service network after sending the indicator of the connection release request.
    Type: Grant
    Filed: July 31, 2023
    Date of Patent: February 4, 2025
    Assignee: MediaTek Inc.
    Inventors: Chien-Chun Huang-Fu, Chun-Fan Tsai, I-Kang Fu, Chin-Chia Chang
  • Patent number: 12193095
    Abstract: Solutions pertaining to user equipment (UE) and network behavior at and after a network disaster in mobile communications are proposed. An apparatus, implemented in or as a UE, determines whether a disaster condition is met with respect to a first public land mobile network (PLMN). The apparatus then selects a second PLMN according to information listing one or more PLMNs which are allowed to be selected by the UE when the disaster condition is met. The apparatus also attempts a registration in the second PLMN.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: January 7, 2025
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Marko Niemi, Yuan-Chieh Lin, Chien-Chun Huang-Fu
  • Publication number: 20240397389
    Abstract: A method for S-NSSAI handling of a 5GS capable UE supporting session continuity between 3GPP and non-3GPP interworking is proposed. The UE maintains a PDN connection/PDU session. The UE performs interworking among S1 mode, N1 mode (including 3GPP and non-3GPP access), and ePDG. The UE associates the existing S-NSSAI with the new PDN connection/PDU session after interworking, no matter whether the S-NSSAI is provided by the network or not. The UE can update the S-NSSAI upon receipt of new value from the network. When interwork to N1 mode, the UE applies the S-NSSAI.
    Type: Application
    Filed: August 3, 2024
    Publication date: November 28, 2024
    Inventor: Chien-Chun Huang-Fu
  • Patent number: 12082065
    Abstract: A method for S-NSSAI handling of a 5GS capable UE supporting session continuity between 3GPP and non-3GPP interworking is proposed. The UE maintains a PDN connection/PDU session. The UE performs interworking among S1 mode, N1 mode (including 3GPP and non-3GPP access), and ePDG. The UE associates the existing S-NSSAI with the new PDN connection/PDU session after interworking, no matter whether the S-NSSAI is provided by the network or not. The UE can update the S-NSSAI upon receipt of new value from the network. When interwork to N1 mode, the UE applies the S-NSSAI.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: September 3, 2024
    Assignee: MediaTek Inc.
    Inventor: Chien-Chun Huang-Fu
  • Patent number: 12028710
    Abstract: A method of enhanced handling of a Forbidden SNPN list by a UE is proposed. When the UE registers to a first SNPN using credentials supplied by a second SNPN and receives a rejection from the network, the UE adds an entry of the first SNPN into one of the forbidden SNPN lists, and also creates an association between the first SNPN and the second SNPN. As a result, the UE is refrained from registering to the first SNPN using the credentials supplied by the second SNPN as long as the first SNPN entry remains in the forbidden SNPN list. However, the UE is allowed to register to the first SNPN using credentials supplied by other SNPNs.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: July 2, 2024
    Assignee: MediaTek Inc.
    Inventors: Yuan-Chieh Lin, Chien-Chun Huang-Fu, Chia-Lin Lai
  • Patent number: 12022386
    Abstract: Aspects of the disclosure provide methods and apparatuses. The method can include receiving, at a user equipment (UE), system information broadcast from one or more base stations which may be shared by one or more PLMNs and/or one or more SNPNs, the system information including an indication of whether accessing an SNPN using home service provider (HSP) subscription of a HSP network is supported. The UE can be configured with subscription information of the HSP network. The subscription information can include the HSP subscription and a selection list that includes one or more candidate networks each represented by an SNPN identifier. The method can further include responsive to the system information, selecting a network from the selection list according to a priority order of the candidate networks, and accessing the network selected from the selection list using the HSP subscription.
    Type: Grant
    Filed: April 18, 2023
    Date of Patent: June 25, 2024
    Assignee: MEDIATEK INC.
    Inventors: Chia-Lin Lai, Chien-Chun Huang-Fu, Yuan-Chieh Lin, Guillaume Sebire
  • Patent number: 12010552
    Abstract: A method for 5G Session Management (5GSM) handling of network rejection not due to congestion control is provided. A User Equipment (UE) receives a 5GSM reject message from a mobile communication network. The 5GSM reject message indicates a network rejection not due to congestion control. The UE associates a back-off timer with a Home Public Land Mobile Network (HPLMN) Single-Network Slice Selection Assistance Information (S-NSSAI). The UE prevents itself from sending a 5GSM request message for the same HPLMN S-NSSAI that is associated with the back-off timer.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: June 11, 2024
    Assignee: MEDIATEK INC.
    Inventors: Chien-Chun Huang-Fu, Bo-Hun Chen
  • Patent number: 12010549
    Abstract: In 5GS, Single-Network Slice Selection Assistance Information (S-NSSAI) based backoff (BO) timers (T3584/T3585) can be applied to either the registered PLMN or all the PLMNs based on a 5GSM congestion re-attempt indicator. For a specific PDU session, the corresponding BO timer applied to the registered PLMN and the BO timer applied to all PLMN can be both running concurrently. It is proposed for a UE to stop both the BO timer applied to all the PLMNs and the BO timer applied to the registered PLMN, if running, in all the following scenarios: 1) Receiving a PDU session release command without a BO timer, 2) Receiving a PDU session release command with 5GSM cause #39, 3) Receiving a PDU session modification command, 4) Receiving a 5GSM message with a 5GSM congestion control BO timer value, and 5) Receiving a PDU session authentication command.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: June 11, 2024
    Inventors: Chien-Chun Huang-Fu, Bo-Hun Chen, Chi-Hsien Chen, Shang-Ru Mo
  • Publication number: 20240146661
    Abstract: Various solutions for extended reality (XR) enhancement in mobile communications are described. An apparatus establishes a communication with a network node of a wireless network. The apparatus performs an operation with respect to XR-related computation offloading from a user end to result in XR enhancement at the user end.
    Type: Application
    Filed: March 7, 2022
    Publication date: May 2, 2024
    Inventors: Abdellatif SALAH, Chien-Chun HUANG-FU, Chi-Hsuan HSIEH, Wei-De WU
  • Publication number: 20240107599
    Abstract: A method to establish and activate an MA PDU session for data transmission over a selected access is proposed. UE initiates a UE-requested PDU session establishment procedure. Once the UE receives a PDU SESSION ESTABLISHMENT ACCEPT message with ATSSS container IE, the UE can consider the MA PDU session has been activated and user plane resources are successfully established on the selected access. A method to convert an SA PDU session to an MA PDU session for data transmission over a selected access is proposed. UE initiates a UE-requested PDU session modification procedure. Once the UE receives a PDU SESSION MODIFICATION COMMAND message with ATSSS container IE, the UE can consider the MA PDU session has been converted from the SA PDU session and user plane resources are successfully established on the selected access.
    Type: Application
    Filed: December 7, 2023
    Publication date: March 28, 2024
    Inventors: Yuan-Chieh Lin, Chien-Chun Huang Fu
  • Patent number: 11910488
    Abstract: A method of enhancing IP packet forwarding feature support after interworking is proposed. When a PDU session in 5GS is transferred to a PDN connection in EPS, the UE shall assume the feature is supported after inter-system change from 5GS to EPS. When a PDN connection is established in EPS, the network indicated that the feature is not supported, and the network provided 5GSM parameters for ESM/5GSM interworking for this PDN connection, then UE shall assume the feature is supported after inter-system change from EPS to 5GS, the UE shall also assume the feature is supported after inter-system change from 5GS back to EPS. The IP packet forwarding features include PS data off and local IP address in TFT.
    Type: Grant
    Filed: March 3, 2023
    Date of Patent: February 20, 2024
    Inventors: Chien-Chun Huang-Fu, Chi-Hsien Chen, Po-Ying Chuang, Po Kuang Lu
  • Publication number: 20230380008
    Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a first service network utilizing a first RAT or a second service network utilizing a second RAT. The controller sends an indicator of a connection release request to the first service network via the wireless transceiver in response to terminating a first communication service with the first service network or in response to leaving the first service network for the second service network. Also, the controller releases a Radio Resource Control (RRC) connection with the first service network after sending the indicator of the connection release request.
    Type: Application
    Filed: July 31, 2023
    Publication date: November 23, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chien-Chun HUANG-FU, Chun-Fan TSAI, I-Kang FU, Chin-Chia CHANG
  • Publication number: 20230336418
    Abstract: A method of for performing carbon neutralization in a communication network is provided. The method includes receiving a service task from a user equipment. The method also includes obtaining a carbon neutralization calculation parameter related to performing the received service task. The method further includes selecting, based on the obtained carbon neutralization calculation parameter, a target entity from a plurality of candidate targets at which the received service task can be performed. The method further includes sending the received service task to the selected target entity.
    Type: Application
    Filed: March 14, 2023
    Publication date: October 19, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chien-Sheng YANG, Chien-Chun HUANG-FU, I-Kang FU
  • Publication number: 20230328584
    Abstract: Various solutions for single network slice selection assistance information (S-NSSAI) based congestion control with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a message with a back-off timer from the network node. The apparatus may determine whether an S-NSSAI of a protocol data unit (PDU) session is provided by the network node. The apparatus may start the back-off timer and associate the back-off timer with the S-NSSAI of the PDU session in an event that the S-NSSAI is provided by the network node.
    Type: Application
    Filed: June 14, 2023
    Publication date: October 12, 2023
    Inventors: Chien-Chun Huang-Fu, Chi-Hsien Chen, Po-Kuang Lu, Yu-Chieh Tien
  • Patent number: 11751279
    Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a first service network utilizing a first RAT or a second service network utilizing a second RAT. The controller sends an indicator of a connection release request to the first service network via the wireless transceiver in response to terminating a first communication service with the first service network or in response to leaving the first service network for the second service network. Also, the controller releases a Radio Resource Control (RRC) connection with the first service network after sending the indicator of the connection release request.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: September 5, 2023
    Assignee: MEDIATEK INC.
    Inventors: Chien-Chun Huang-Fu, Chun-Fan Tsai, I-Kang Fu, Chin-Chia Chang
  • Publication number: 20230254767
    Abstract: Aspects of the disclosure provide methods and apparatuses. The method can include receiving, at a user equipment (UE), system information broadcast from one or more base stations which may be shared by one or more PLMNs and/or one or more SNPNs, the system information including an indication of whether accessing an SNPN using home service provider (HSP) subscription of a HSP network is supported. The UE can be configured with subscription information of the HSP network. The subscription information can include the HSP subscription and a selection list that includes one or more candidate networks each represented by an SNPN identifier. The method can further include responsive to the system information, selecting a network from the selection list according to a priority order of the candidate networks, and accessing the network selected from the selection list using the HSP subscription.
    Type: Application
    Filed: April 18, 2023
    Publication date: August 10, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chia-Lin LAI, Chien-Chun HUANG-FU, Yuan-Chieh LIN, Guillaume SEBIRE
  • Publication number: 20230254738
    Abstract: A method of enhancing session continuity for system interworking is proposed. Upon a UE performs inter-system change from A/Gb mode or Iu mode to S1 mode, the UE identifies that some PDN connection(s) are not associated with a PDU session ID (PSI). In one novel aspect, the UE deactivates all EPS bearer contexts for such PDN connection(s) locally, includes the EPS bearer context status IE in a TRACKING AREA UPDATE REQUEST message of a tracking area updating (TAU) procedure upon inter-system change from A/Gb mode or Iu mode to S1 mode, and then initiates UE requested PDN connectivity procedure(s) for such PDN connection(s). Furthermore, if no EPS bearer exists after local deactivation and EMM-REGISTERED without PDN connection is not supported by the UE, then the UE initiates a re-attach procedure followed by the UE requested PDN connectivity procedure(s) for such PDN connection (s) .
    Type: Application
    Filed: January 31, 2023
    Publication date: August 10, 2023
    Inventors: CHIEN-CHUN HUANG-FU, Bo-Hun Chen, Shang-Wu Li, Yu-Kai Gao
  • Publication number: 20230254800
    Abstract: A method of enhancing session continuity for system interworking is proposed. Upon intersystem change from S1 mode to N1 mode, a UE may perform deregistration when re-registration is required. The UE stops all 5GSM non-congestion back-off timers. In addition to the 5GSM non-congestion back-off timers, there may be ESM non-congestion back-off timers running. The UE may take the RATC and the EPLMNC indicators in the Re-attempt indicator IE into consideration, and stops all ESM non-congestion timers. Upon intersystem change from N1 mode to S1 mode, the UE may perform detach procedure when re-attach is required. The UE stops all ESM non-congestion back-off timers. In addition to the ESM non-congestion back-off timers, there may be 5GSM non-congestion back-off timers running. The UE may take the RATC and the EPLMNC indicators in the Re-attempt indicator IE into consideration, and stops all 5GSM non-congestion timers.
    Type: Application
    Filed: January 31, 2023
    Publication date: August 10, 2023
    Inventors: CHIEN-CHUN HUANG-FU, Bo-Hun Chen, Shang-Wu Li
  • Patent number: 11706665
    Abstract: A method of enhanced error handling for 5G QoS operations is proposed. A PDU session defines the association between the UE and the data network that provides a PDU connectivity service. Each PDU session is identified by a PDU session ID, and may include multiple QoS flows and QoS rules. Within a PDU session, there should be one and only one default QoS rule. The default QoS rule indication (DQR) and the QoS flow identifier (QFI) of a signaled QoS rule should not be changed. Two new 5G session management (5GSM) causes are defined: a semantic error in the QoS operation (cause value #83) and a syntactic error (cause value #84) in the QoS operation. The UE should check the QoS rule provided in a PDU session modification command message for different types of QoS rule errors.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: July 18, 2023
    Assignee: MediaTek INC.
    Inventors: Chien-Chun Huang-Fu, Po-Ying Chuang