Patents by Inventor Chien Fang

Chien Fang 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: 20230345562
    Abstract: The present invention provides a wireless communication method of an electronic device, wherein the wireless communication method includes the steps of: establishing at least a first link and a second link with other devices; transmitting a frame via the first link, wherein the frame comprises a non-inheritance element comprising at least one element identity with at least one identifier of the second link that is not inherited from the first link.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 26, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, Hao-Liang Yang
  • Patent number: 11791970
    Abstract: The present invention provides a wireless communication method of an access point, wherein the wireless communication method comprises: generating a PPDU according to a traffic of the access point, wherein the PPDU includes a preamble and SIG field, a first data field, a midamble and SIG field and a second data field in sequence, the preamble and SIG field includes information of a first station and a first resource unit allocated to the first station, and the midamble and signal SIG field includes information of a second station and the first resource unit that is reallocated to the second station; transmitting the preamble and SIG field; using the first resource unit to transmit data corresponding to the first data field to the first station; transmitting the midamble and SIG field; and using the first resource unit to transmit data corresponding to the second data field to the second station.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: October 17, 2023
    Assignee: MEDIATEK INC.
    Inventors: Tsai-Yuan Hsu, Chien-Fang Hsu
  • Publication number: 20230328581
    Abstract: A wireless communication method includes: generating a buffer status report poll (BSRP) trigger frame, wherein the BSRP trigger frame is configured to carry indication information of buffer status report (BSR) collection; sending the BSRP trigger frame to at least one non-access-point (non-AP) station (STA); and in response to receiving the BSRP trigger frame, generating at least one trigger-based (TB) physical layer (PHY) protocol data unit (PPDU), and sending the at least one TB PPDU to an access point (AP).
    Type: Application
    Filed: March 31, 2023
    Publication date: October 12, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, Hao-Hua Kang, Chih-Chun Kuo
  • Patent number: 11770732
    Abstract: A link condition announcement method is employed by a wireless fidelity (WiFi) multi-link device (MLD), and includes: obtaining information of a traffic condition of each of a plurality of links owned by the WiFi MLD according to traffic statistics of each of the plurality of links, and transmitting the information of the traffic condition of each of the plurality of links to another WiFi MLD that communicates with the WiFi MLD.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: September 26, 2023
    Assignee: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, Yongho Seok, James Chih-Shi Yee
  • Publication number: 20230261782
    Abstract: A multi-link device (MLD) includes a transmit (TX) circuit, a receive (RX) circuit, and a control circuit. The control circuit controls the RX circuit to receive a first frame under an operation mode parameter with a first setting, control the TX circuit to transmit a second frame responsive to the first frame under the operation mode parameter with the first setting, and after the second frame is transmitted, controls the RX circuit to receive at least one physical layer protocol data unit (PPDU) under the operation mode parameter with a second setting, wherein the second setting is different from the first setting. None of the first frame and the second frame carries indication of operation mode parameter change that specifies the use of the second setting, and the use of the second setting is indicated by transmission of the second frame.
    Type: Application
    Filed: April 19, 2023
    Publication date: August 17, 2023
    Applicant: Midiatek Inc.
    Inventors: Chien-Fang Hsu, Cheng-Yi Chang, Hung-Tao Hsieh, Yongho Seok
  • Publication number: 20230188266
    Abstract: One wireless communication method includes: receiving a request action frame; and in response to the request action frame, generating and sending an acknowledgement (ACK) control frame that is configured to serve as a response action frame for the request action frame, wherein the response action frame is not solicited by the request action frame. Another wireless communication method includes: receiving a request action frame; and in response to the request action frame, generating and sending an acknowledgement (ACK) control frame and a time-constrained response action frame following the ACK control frame, wherein the time-constrained response action frame is solicited by the request action frame.
    Type: Application
    Filed: November 24, 2022
    Publication date: June 15, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, Cheng-Ying Wu, Chao-Wen Chou, Yongho Seok
  • Patent number: 11670490
    Abstract: The present disclosure provides a semiconductor fabrication apparatus. The semiconductor apparatus includes a processing chamber; a substrate stage provided in the processing chamber and being configured to secure and rotate a semiconductor wafer; a gas injector configured to inject a chemical to the processing chamber; a window attached to the gas injector; and an adjustable fastening device coupled with the gas injector and the window.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: June 6, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yung-Shun Hsu, Ching-Yu Chang, Chiao-Kai Chang, Wai Hong Cheah, Chien-Fang Lin
  • Patent number: 11671860
    Abstract: An uplink (UL) latency indication method includes: collecting, by an access point (AP), latency information associated with communications with at least one non-AP station (STA), without asking latency measurement on said at least one non-AP STA; and performing statistical analysis on the latency information to generate at least one UL latency indicator.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: June 6, 2023
    Assignee: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, James Chih-Shi Yee
  • Patent number: 11658768
    Abstract: A multi-link device (MLD) includes a transmit (TX) circuit, a receive (RX) circuit, and a control circuit. The control circuit controls the RX circuit to receive a first frame under an operation mode parameter with a first setting, control the TX circuit to transmit a second frame responsive to the first frame under the operation mode parameter with the first setting, and after the second frame is transmitted, controls the RX circuit to receive at least one physical layer protocol data unit (PPDU) under the operation mode parameter with a second setting, wherein the second setting is different from the first setting.
    Type: Grant
    Filed: July 5, 2021
    Date of Patent: May 23, 2023
    Assignee: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, Cheng-Yi Chang, Hung-Tao Hsieh, Yongho Seok
  • Publication number: 20230156864
    Abstract: A physical protocol data unit (PPDU) transmission method includes: setting parameters of each of a plurality of links for enabling the plurality of links to have different capacity for PPDU transmission, wherein parameters of one link are different from parameters of another link, and highest capacity supported by the one link is higher than highest capacity supported by the another link; aligning an ending time instant of transmission of a first PPDU transmitted via the one link with an ending time instant of transmission of a second PPDU transmitted via the another link through setting a content that is carried by the first PPDU transmitted via the one link; and transmitting PPDUs via the plurality of links, wherein one PPDU is transmitted via each of the plurality of links, and the PPDUs include the first PPDU and the second PPDU.
    Type: Application
    Filed: January 18, 2023
    Publication date: May 18, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, Yongho Seok, James Chih-Shi Yee
  • Patent number: 11596024
    Abstract: A physical protocol data unit (PPDU) transmission method includes aligning parameters of a plurality of links for constraining the plurality of links to have same capacity for PPDU transmission, and transmitting PPDUs via the plurality of links. Highest capacity supported by one of the plurality of links is different from highest capacity supported by another of the plurality of links. Each of the PPDUs is generated and transmitted under the same parameters. Ending time instants of transmission of the PPDUs are aligned.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: February 28, 2023
    Assignee: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, Yongho Seok, James Chih-Shi Yee
  • Publication number: 20230047109
    Abstract: A method of traffic flow management with stream classification service (SCS) and associated apparatus are provided, where the wireless communications system may include a first device and a second device. The method may include: carrying and sending a first descriptor element in a first request frame, requesting for a SCS stream from the first device, wherein the first descriptor element is related to the SCS, wherein the first request frame includes a first indication, indicating whether the second device agrees that the SCS stream and any other stream from the first device to the second device share a same traffic identifier (TID).
    Type: Application
    Filed: July 19, 2022
    Publication date: February 16, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, Gabor Bajko
  • Publication number: 20230050633
    Abstract: A method and an apparatus for handling coordinated association in a wireless network with multiple access points are described. A method comprises receiving network parameters, determining a plurality of AP-STA associations, and sending the plurality of associations to the STAs. An apparatus includes controlling, managing, and optimization modules implementing the method of handling coordinated association in a wireless network.
    Type: Application
    Filed: August 2, 2022
    Publication date: February 16, 2023
    Applicant: MediaTek Singapore Pte. Ltd.
    Inventors: Samat Shabdanov, Chien-Fang Hsu, Po-Yuen Cheng, Weisung Tsao, Chung-Ta Ku
  • Publication number: 20230051808
    Abstract: Embodiments of the present invention provide A TID-based RTWT SP that can be configured for either trigger-based transmission or EDCA-based transmission for time sensitive traffic to reduce the chance of contention/collision on time sensitive traffic caused by non-time sensitive traffic using an EDCA mechanism. This can also reduce the chance of contention on time sensitive traffic when both trigger-based transmission and EDCA-based-transmission are used in the same TID-based RTWT SP. The AP MLD can dynamically adjust the schedule of TID-SPs for ether trigger-based or EDCA-based transmission and announce the new schedule of the TID-SPs according to the requirements of time sensitive traffic and/or traffic load condition, and can prioritize time sensitive transmission to meet QoS requirements.
    Type: Application
    Filed: August 3, 2022
    Publication date: February 16, 2023
    Inventors: Yonggang Fang, James Chih-Shi Yee, Chien-Fang Hsu, Kai Ying Lu
  • Patent number: 11582812
    Abstract: A control link switch method is employed by a wireless fidelity (WI-FI) multi-link device (MLD). The control link switch method includes: sending a request frame to another WI-FI MLD for requesting a switch process of switching a current control link to a new control link, and receiving a response frame from another WI-FI MLD. After the response frame is received, the new control link is selectively enabled at the WI-FI MLD.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: February 14, 2023
    Assignee: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, James Chih-Shi Yee
  • Publication number: 20230024093
    Abstract: A method for performing traffic flow management with aid of auxiliary information and associated apparatus are provided. The method may include: carrying first auxiliary information in at least one first data unit of first data units in a first stream, wherein the first stream and a second stream are assigned to a same traffic identifier (TID); and sending the at least one first data unit carrying the first auxiliary information and at least one second data unit in the second stream to the second device, wherein the first auxiliary information comprises an indication of the first data units being part of the first stream.
    Type: Application
    Filed: June 20, 2022
    Publication date: January 26, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, Hao-Hua Kang, Chih-Chun Kuo
  • Publication number: 20220417787
    Abstract: Embodiments of the present invention provide systems, devices and methods of wireless communications that improve transmission reliability for time sensitive traffic over multiple wireless communication links in a wireless TSN. The transmitting device can be configured for uplink QoS transmission according to transmission QoS information (e.g., a traffic profile) received from a TSN configuration server or from an application running on the transmitting device. For uplink transmission, the transmitting device can be a wireless STA or STA MLD operating over multiple wireless links to communicate with one or more wireless TSN-capable APs. The transmitting device can duplicate a frame for transmission when the measured transmission reliability is below a predetermined threshold of transmission reliability requirement. For downlink transmission, the transmitting device can be an AP MLD in communication with a TSN capable non-AP MLD for transmitting a duplicate transmission.
    Type: Application
    Filed: June 21, 2022
    Publication date: December 29, 2022
    Inventors: Yonggang Fang, James Chih-Shi Yee, Chien-Fang Hsu
  • Publication number: 20220361193
    Abstract: Embodiments of the present invention provide systems and methods for performing priority service access between EHT non-AP STAs or MLDs using EDCA or UORA parameter sets corresponding to enabled links that can be used to derive priority access (e.g., contention window) information of enabled links for NSEP or LL wireless communication. The EHT non-AP STAs or MLDs can enable, configure, and update priority access for NSEP or LL services using protected action frames or beacon frames, for example. Deriving priority information from the EDCA or UORA parameters carried in protected action frames or beacon frames advantageously avoids increasing the overhead of beacon frames and prevents degradation of spectrum efficiency while supporting NSEP or LL priority services.
    Type: Application
    Filed: May 2, 2022
    Publication date: November 10, 2022
    Inventors: Yonggang Fang, James Chih-Shi Yee, Kai Ying Lu, Chien-Fang Hsu, Yongho Seok
  • Publication number: 20220346165
    Abstract: A capability indication method employed by a wireless fidelity (Wi-Fi) multi-link device (MLD) includes: during an association process between the Wi-Fi MLD and another Wi-Fi MLD, indicating a first capability allocation of a first combination of affiliated stations in the Wi-Fi MLD for a first combination of enabled links on the Wi-Fi MLD, and indicating a second capability allocation of a second combination of affiliated stations in the Wi-Fi MLD for a second combination of enabled links on the Wi-Fi MLD, wherein the first combination of affiliated stations is different from the second combination of affiliated stations, and the first combination of enabled links is different from the second combination of enabled links.
    Type: Application
    Filed: April 19, 2022
    Publication date: October 27, 2022
    Applicant: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, Yongho Seok, James Chih-Shi Yee
  • Publication number: 20220338287
    Abstract: A management method employed by an access point (AP) multi-link device (MLD) includes: during association between the AP MLD and a non-AP MLD, obtaining capability indications signaled from the non-AP MLD, wherein the capability indications comprise at least a link addition capability indication of the non-AP MLD; and performing resource allocation for links between the AP MLD and the non-AP MLD according to at least a portion of the capability indications.
    Type: Application
    Filed: April 13, 2022
    Publication date: October 20, 2022
    Applicant: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, James Chih-Shi Yee