Patents by Inventor Tzu-wen Chang

Tzu-wen Chang 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: 12356464
    Abstract: A method and a User Equipment (UE) for performing uplink repetitions and a related base station (BS) are provided. The method includes a UE receiving a Reference Signal Received Power (RSRP) threshold from a Base Station (BS); initiating a 4-step Random Access (RA) procedure; performing a Downlink (DL) Reference Signal (RS) measurement to obtain an RSRP measurement result; and performing a Message 1 (Msg1) repetition operation and a Message 3 (Msg3) repetition request operation within the 4-step RA procedure after determining that the RSRP measurement result is equal to or less than the RSRP threshold.
    Type: Grant
    Filed: March 2, 2023
    Date of Patent: July 8, 2025
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tzu-Wen Chang, Chie-Ming Chou, Chia-Hung Wei, Hai-Han Wang
  • Patent number: 12316552
    Abstract: A data bandwidth management method is provided. The data bandwidth management method is applied to a data bandwidth management device. The bandwidth management method includes the steps of obtaining one or more data bandwidth sharing configurations corresponding to one or more sharing devices; receiving a service request of a client device connected to the data bandwidth management device; and allocating data bandwidth of the one or more sharing devices to the client device based on the one or more data bandwidth sharing configurations in response to the service request of the client device.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: May 27, 2025
    Assignee: MEDIATEK INC.
    Inventors: Tsung-Hsi Yang, Tzu-Wen Chang
  • Publication number: 20250113246
    Abstract: A method performed by a UE for Delay Status Reporting (DSR) is provided. The method receives, from a BS, configuration information related to a Logical Channel Group (LCG). The method generates a DSR Medium Access Control (MAC) Control Element (CE) including a first field indicating a buffer size for the LCG and transmits the DSR MAC CE to the BS. The buffer size indicates a total amount of delay-critical data for the LCG. The delay-critical data for the LCG includes a first Packet Data Convergence Protocol (PDCP) Service Data Unit (SDU), for which a first discard timer has a remaining time value less than a time threshold associated with the LCG, and a second PDCP SDU belonging to a Protocol Data Unit (PDU) set that includes at least one PDCP SDU for which a second discard timer has a remaining time value less than the time threshold.
    Type: Application
    Filed: September 26, 2024
    Publication date: April 3, 2025
    Inventors: TZU-WEN CHANG, HUNG-CHEN CHEN
  • Publication number: 20250056459
    Abstract: A method performed by a User Equipment (UE) for handling timing alignment is provided. The method receives, from a Base Station (BS), a first Radio Resource Control (RRC) message for configuring a Time Alignment Timer (TAT). The method receives, from the BS, a second RRC message for configuring at least one of a cell Discontinuous Transmission (DTX) operation or a cell Discontinuous Reception (DRX) operation. In a case that at least one of the cell DTX operation or the cell DRX operation is configured and the TAT expires, the method considers the UE to be uplink synchronized with the BS and forgoes performing a procedure for handling an out-of-sync condition related to the expiration of the TAT.
    Type: Application
    Filed: August 9, 2024
    Publication date: February 13, 2025
    Inventors: CHIE-MING CHOU, Tzu-Wen Chang, Chun-Yen Hsu, Chia-Hung Lin, Yung-Lan Tseng
  • Publication number: 20250056293
    Abstract: A method for a User Equipment (UE) for enhancement in Network Energy Saving (NES) is provided. The method receives, from a Base Station (BS), a Radio Resource Control (RRC) message including a trigger state list and a Channel State Information (CSI) report configuration that includes one or more CSI report sub-configurations. The method receives, from the BS, a Downlink Control Information (DCI) format indicating a trigger state in the trigger state list. The trigger state is associated with the CSI report configuration and indicates a subset of CSI report sub-configurations in the one or more CSI report sub-configurations. The method then applies the subset of CSI report sub-configurations to perform a CSI reporting procedure on a Physical Uplink Shared Channel (PUSCH).
    Type: Application
    Filed: August 8, 2024
    Publication date: February 13, 2025
    Inventors: PO-CHUN CHOU, YUNG-LAN TSENG, TZU-WEN CHANG, TZU-YUEH TSENG
  • Publication number: 20250048256
    Abstract: A method performed by a User Equipment (UE) for Network Energy Saving (NES) is provided. The method receives, from a Base Station (BS), a Radio Resource Control (RRC) message including an NES configuration. The method then determines whether to apply a cell Discontinuous Transmission (DTX) operation, a cell Discontinuous Reception (DRX) operation, or both the cell DTX operation and the cell DRX operation based on the NES configuration.
    Type: Application
    Filed: August 1, 2024
    Publication date: February 6, 2025
    Inventors: TZU-WEN CHANG, CHIE-MING CHOU, YUNG-LAN TSENG, YEN-HUA LI, CHIA-HSIN LAI, CHUN-YEN HSU
  • Publication number: 20240340905
    Abstract: A method for delay information reporting is provided. The method receives a threshold via RRC signaling. The method determines whether at least one of delay budgets of one or more packets buffered in a first logical channel group LCG is below the threshold. In a case that at least one delay budget is below the threshold, the method triggers a delay information reporting (DR); determines whether at least one uplink resource is available for a MAC CE for the DR; and in a case that the at least one UL resource is available, generates the MAC CE by including delay information associated with a first delay range for the first LCG, and transmits the MAC CE on the at least one UL resource.
    Type: Application
    Filed: April 7, 2024
    Publication date: October 10, 2024
    Inventors: Chia-Hung Wei, Tzu-Wen Chang
  • Publication number: 20240341007
    Abstract: Methods and devices for discontinuous reception (DRX) configurations are provided. The method includes receiving a DRX configuration via radio resource control (RRC) signaling, the DRX configuration including a first configuration for configuring a DRX cycle by an integer value; determining whether the DRX configuration includes a second configuration for configuring the DRX cycle by a non-integer value; and in a case that the DRX configuration includes the second configuration, applying the second configuration instead of the first configuration for configuring the DRX cycle.
    Type: Application
    Filed: April 7, 2024
    Publication date: October 10, 2024
    Inventors: Tzu-Wen CHANG, Chia-Hung WEI
  • Publication number: 20240284249
    Abstract: Methods and apparatuses for reporting and managing data delay information are provided. The method includes receiving a first threshold for a first Logical Channel Group (LCG) from a Base Station (BS) and transmitting a particular Medium Access Control (MAC) Control Element (CE) to the BS in a case that a first condition associated with the first threshold is met. The particular MAC CE carries, at least, a first data delay information value for the first LCG and a first buffer size value indicating an amount of first Uplink (UL) data that is associated with the first condition and buffered in the first LCG.
    Type: Application
    Filed: February 6, 2024
    Publication date: August 22, 2024
    Inventors: CHIA-HUNG WEI, TZU-WEN CHANG
  • Publication number: 20240284550
    Abstract: Methods and devices for Network Energy Saving (NES) are provided. The method is performed by a user equipment (UE) and includes receiving, from a base station (BS), a first configuration of a cell-discontinuous transmission (cell-DTX) mechanism; receiving, from the BS, a second configuration of a cell-discontinuous reception (cell-DRX) mechanism; monitoring a physical downlink control channel (PDCCH) of the BS based on the first configuration; and performing an uplink transmission to the BS based on the second configuration.
    Type: Application
    Filed: February 16, 2024
    Publication date: August 22, 2024
    Inventors: TZU-YUEH TSENG, YUNG-LAN TSENG, TZU-WEN CHANG, YEN-HUA LI
  • Publication number: 20230337321
    Abstract: Methods and user equipment of sidelink discontinuous reception (SL-DRX) are provided. The method includes: rejecting a SL-DRX configuration of a sidelink service by transmitting one of a first signaling and a second signaling with a sidelink destination identity to a serving cell of the first UE according to a cast type of the sidelink service, wherein the sidelink destination identity is associated with the sidelink service and the SL-DRX configuration is configured by the serving cell; and in response to rejecting the SL-DRX configuration, disabling a SL-DRX mechanism for the sidelink service and the sidelink destination identity.
    Type: Application
    Filed: April 13, 2023
    Publication date: October 19, 2023
    Applicant: FG Innovation Company Limited
    Inventors: Yung-Lan Tseng, Mei-Ju Shih, Tzu-Wen Chang
  • Publication number: 20230336498
    Abstract: A data bandwidth management method is provided. The data bandwidth management method is applied to a data bandwidth management device. The bandwidth management method includes the steps of obtaining one or more data bandwidth sharing configurations corresponding to one or more sharing devices; receiving a service request of a client device connected to the data bandwidth management device; and allocating data bandwidth of the one or more sharing devices to the client device based on the one or more data bandwidth sharing configurations in response to the service request of the client device.
    Type: Application
    Filed: April 19, 2022
    Publication date: October 19, 2023
    Inventors: Tsung-Hsi YANG, Tzu-Wen CHANG
  • Publication number: 20230309093
    Abstract: A method and a user equipment (UE) for reporting UE capability for small data transmission (SDT) are provided. The method includes: receiving control information for scheduling a plurality of physical downlink shared channels (PDSCHs) or a plurality of physical uplink shared channels (PUSCHs) on the plurality of serving cells; and performing, based on the control information, receptions of the plurality of PDSCHs on the plurality of serving cells or transmissions of the plurality of PUSCHs on the plurality of serving cells. The control information includes a plurality of fields, and the plurality of fields include at least one of a hybrid automatic repeat request (HARQ) process number field, a PDSCH-to-HARQ timing indicator field, and a time domain resource allocation (TDRA) field, and the TDRA field is used to allocate time domain resources for all of the plurality of PDSCHs or all of the plurality of PUSCHs.
    Type: Application
    Filed: March 24, 2023
    Publication date: September 28, 2023
    Inventors: CHIA-HUNG WEI, CHIA-HSIN LAI, HAI-HAN WANG, TZU-WEN CHANG, HSIN-HSI TSAI, HENG-LI CHIN, YEN-HUA LI, WAN-CHEN LIN
  • Publication number: 20230292373
    Abstract: A method and a User Equipment (UE) for performing uplink repetitions and a related base station (BS) are provided. The method includes a UE receiving a Reference Signal Received Power (RSRP) threshold from a Base Station (BS); initiating a 4-step Random Access (RA) procedure; performing a Downlink (DL) Reference Signal (RS) measurement to obtain an RSRP measurement result; and performing a Message 1 (Msg1) repetition operation and a Message 3 (Msg3) repetition request operation within the 4-step RA procedure after determining that the RSRP measurement result is equal to or less than the RSRP threshold.
    Type: Application
    Filed: March 2, 2023
    Publication date: September 14, 2023
    Inventors: TZU-WEN CHANG, CHIE-MING CHOU, CHIA-HUNG WEI, HAI-HAN WANG
  • Patent number: 11736998
    Abstract: A communications apparatus and associated method communicating with at least one cellular network includes a radio transceiver and a processor. The communications apparatus includes a radio transceiver, capable of transmitting or receiving wireless radio frequency signals to or from a cellular network; and a processor. The processor is configured to: receive an incoming call request message that will trigger a Circuit Switch Fall Back (CSFB) procedure or a Evolved Packet System Fall Back (EPS FB) procedure from the cellular network via the radio transceiver, query a user to accept or reject the incoming call request before triggering the CSFB procedure or the EPS FB procedure, and determine whether to trigger the CSFB procedure or the EPS FB procedure based on a response to the query from the user.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: August 22, 2023
    Assignee: MEDIATEK INC.
    Inventors: Guan-Jie Huang, Tzu-Wen Chang, Kuan-Wei Chen, Yu-Hua Huang, Teng Ma, Sheng-Kai Chang
  • Publication number: 20230001036
    Abstract: A scented candle device includes an electromagnetic base having a casing that defines a base space and that has a top surface, and an electromagnetic unit disposed in the base space for generating a magnetic field. An electromagnetically heated scented candle is disposed on the top surface of the casing, and includes a container defining a receiving space, and a scented candle body received in the receiving space. A magnetically conductive heating member is disposed between the top surface of the casing and the container, and generates heat energy after interacting with the magnetic field of the electromagnetic unit for heating the scented candle body.
    Type: Application
    Filed: March 30, 2022
    Publication date: January 5, 2023
    Inventors: I-Min CHANG, Tzu-Wen CHANG, Pei-Lun CHEN
  • Publication number: 20210400550
    Abstract: A communications apparatus and associated method communicating with at least one cellular network includes a radio transceiver and a processor. The communications apparatus includes a a radio transceiver, capable of transmitting or receiving wireless radio frequency signals to or from a cellular network; and a processor. The processor is configured to: receive an incoming call request message that will trigger a Circuit Switch Fall Back (CSFB) procedure or a Evolved Packet System Fall Back (EPS FB) procedure from the cellular network via the radio transceiver, query a user to accept or reject the incoming call request before triggering the CSFB procedure or the EPS FB procedure, and determine whether to trigger the CSFB procedure or the EPS FB procedure based on a response to the query from the user.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Inventors: Guan-Jie HUANG, Tzu-Wen CHANG, Kuan-Wei CHEN, Yu-Hua HUANG, Teng MA, Sheng-Kai CHANG
  • Patent number: 11140593
    Abstract: A communications apparatus communicating with at least one cellular network includes a radio transceiver and a processor. The radio transceiver is capable of transmitting or receiving wireless radio frequency signals to or from an air interface in the cellular network. The processor is configured to determine whether an inter-RAT change will be triggered in a subsequent procedure when the communications apparatus is in a connected mode. When the processor determines that an inter-RAT change procedure will be triggered, the processor is configured to selectively perform a predetermined procedure instead of the subsequent procedure to avoid the inter-RAT change.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: October 5, 2021
    Assignee: MEDIATEK INC.
    Inventors: Guan-Jie Huang, Tzu-Wen Chang, Kuan-Wei Chen, Yu-Hua Huang, Teng Ma, Sheng-Kai Chang
  • Publication number: 20200100153
    Abstract: A communications apparatus communicating with at least one cellular network includes a radio transceiver and a processor. The radio transceiver is capable of transmitting or receiving wireless radio frequency signals to or from an air interface in the cellular network. The processor is configured to determine whether an inter-RAT change will be triggered in a subsequent procedure when the communications apparatus is in a connected mode. When the processor determines that an inter-RAT change procedure will be triggered, the processor is configured to selectively perform a predetermined procedure instead of the subsequent procedure to avoid the inter-RAT change.
    Type: Application
    Filed: July 17, 2019
    Publication date: March 26, 2020
    Inventors: Guan-Jie HUANG, Tzu-Wen CHANG, Kuan-Wei CHEN, Yu-Hua HUANG, Teng MA, Sheng-Kai CHANG
  • Patent number: 9978340
    Abstract: A touch communications device includes a first touch panel and a processor. The first touch panel includes a first region and a second region. The processor is arranged to control the first region and/or the second region to transmit a signal when a second touch panel of another touch communications device is close to or in contact with the first touch panel.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: May 22, 2018
    Assignee: MEDIATEK INC.
    Inventors: Shang-Lun Ting, Wan-Chun Liao, Tzu-Wen Chang