Patents by Inventor Yongho Seok

Yongho Seok 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: 20230043239
    Abstract: An apparatus (e.g., an access point (AP) establishes a plurality of links comprising a primary link and at least a secondary link. The apparatus transmits a management frame on the primary link to indicate a multi-link capability of the AP. The apparatus configures the secondary link for one or more non-AP stations (STAs), which are capable of operating on the primary link and the secondary link, with multi-link capability and operating parameters through an association procedure on the primary link.
    Type: Application
    Filed: October 24, 2022
    Publication date: February 9, 2023
    Inventors: Kaiying Lu, Yongho Seok, James Chih-Shi Yee, Chao-Chun Wang, Jianhan Liu, Thomas Edward Pare, JR.
  • Patent number: 11576208
    Abstract: Embodiments of the present invention prevent interference caused by the simultaneous transmission and reception of data in a constrained multi-link operation of a wireless network. According to one embodiment, first and second trigger frames are received from a wireless access point (AP) at a wireless station (STA) over first and second wireless links, respectively. First and second data frames are transmitted responsive to the first and second trigger frames over the first and second wireless links, respectively, when the difference between the ending time of the data frame transmitted responsive to the first trigger frame and the ending time of the second trigger frame is greater than a predetermined value to prevent interference.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: February 7, 2023
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Yongho Seok, James Chih-Shi Yee
  • Patent number: 11570101
    Abstract: A network device is provided. The network device includes one or more memories and one or more processors coupled to the one or more memories. The one or more processors are configured to one or more of receive the DL MU PPDU, decode a data frame from the DL MU PPDU, determine whether an acknowledgement (ACK) policy indicated in the MAC header signals a trigger-based immediate acknowledgement policy, and determine whether a trigger indication for an uplink (UL) MU transmission has been obtained from a payload of a data frame. In response to the processor determines that the ACK policy indication signals the trigger-based immediate acknowledgement policy and determines that the trigger indication has been obtained, the processor is configured to transmit a trigger-based immediate acknowledgement frame to the AP in an UL MU PPDU, based on the trigger indication.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: January 31, 2023
    Assignee: Atlas Global Technologies LLC
    Inventor: Yongho Seok
  • Publication number: 20230018719
    Abstract: An apparatus (e.g., a station (STA) in a wireless local area network (WLAN)), receives, from an access point (AP), a frame comprising a multi-link configuration information element (IE) that indicates one or more enabled links as a subset of one or more supported links for a traffic identifier (TID). Accordingly, the apparatus transmits, to the AP, data over at least one of the one or more enabled links corresponding to the TID.
    Type: Application
    Filed: September 18, 2022
    Publication date: January 19, 2023
    Inventors: Yongho Seok, James Chih-Shi Yee
  • Patent number: 11540168
    Abstract: Embodiments of the present invention provide apparatus and methods for multi-link operations that include retransmission of data using different wireless links. The following discussion describes one such exemplary electronic system or computer system that can be used as a platform for implementing embodiments of the present invention. The multi-link device can be a multi-link wireless access point or a multi-link wireless station, for example. The multi-link device can operate multiple transceivers simultaneously to perform multi-link operations including retransmission using different wireless links. For example, the multi-link device can transmit an encrypted MPDU using a first wireless link, and retransmit the MPDU using a second wireless link by setting a MAC header of the MPDU according to a MAC address of the second wireless link, to advantageously enhance the performance, reliability, and efficiency of the wireless network.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: December 27, 2022
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Gabor Bajko, Yongho Seok, James Chih-Shi Yee, Kai Ying Lu
  • Patent number: 11533756
    Abstract: A data unit (e.g., a physical layer convergence procedure (PLCP) protocol data unit (PPDU)) is detected at a first wireless device of a basic service set (BSS). The data unit was sent on a channel from a second wireless device of an overlapping basic service set (OBSS). The data unit is wide-bandwidth, occupying both a primary channel and a secondary channel of the wireless network. The first and second wireless devices are within a same spatial reuse group (SRG). The first wireless device stores the channel bandwidth of the data unit and a receive duration time of the data unit. During the receive duration time of the data unit, a SRG OBSS power density threshold is applied on the secondary channels that are within the channel bandwidth of the data unit, instead of applying a non-SRG OBSS power density threshold on those secondary channels.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: December 20, 2022
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Yongho Seok, James June-Ming Wang, Chao-Chun Wang, Chih-Shi Yee
  • Publication number: 20220394726
    Abstract: System and method of cooperative multi-band wireless STA communication that enables full duplex operations are disclosed herein. Frames are configured to carry band information and are selected to be transmitted simultaneously in multiple bands based on various constraints to avoid out-of-order delivery. For frames under a block ACK agreement, a transmit STA can specify the transmission bands for the frames in an ADDBA request frame. While a first band is transmitting a first frame under a block ACK agreement, the second band can be used to transmit a frame under the same block ACK agreement as, and from the same traffic flow with, the first frame. Otherwise, the second band can be used to transmit a frame with a different TID than the first frame.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Inventors: Yongho SEOK, Jianhan LIU, Gabor BAJKO, James Chih-Shi YEE
  • Patent number: 11523423
    Abstract: Embodiments of the present invention provide a method and apparatus for coordinated multi-AP channel access in a wireless network. A wireless AP that obtains a transmission opportunity (TXOP) (a “coordinator AP”) can grant one or more STAs or APs under control of the coordinator AP the use of some of the bandwidth granted by the TXOP. The STAs or APs that are granted the use of the bandwidth are referred to as “coordinated APs.” Thereafter, a coordinator AP or a coordinated AP can create a new basic service set (BSS) of devices for coordinating data transmissions. For example, the coordinated AP may serve as a relay, where the coordinated AP services devices in a new BSS by sending and receiving data with a coordinator AP in a different BSS.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: December 6, 2022
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Yongho Seok, Jianhan Liu, James Chih-Shi Yee, James June-Ming Wang, Thomas Edward Pare, Jr., Shihchieh Lee
  • Publication number: 20220386301
    Abstract: A station (STA) receives an indication from a first access point (AP) on one of a plurality of links that is not a non-primary link among the plurality of links comprising at least a primary link and the non-primary link. Based on the indication, the STA determines that: (i) the first AP is affiliated with a non-simultaneous-transmit-and-receive (NSTR) AP multi-link device (MLD), and (ii) a second AP, as a neighbor AP of the first AP, is affiliated with the NSTR AP MLD and is operating on the non-primary link.
    Type: Application
    Filed: May 26, 2022
    Publication date: December 1, 2022
    Inventors: Kai Ying Lu, Yongho Seok, James Chih-Shi Yee
  • Patent number: 11516841
    Abstract: An apparatus (e.g., an access point (AP) establishes a plurality of links comprising a primary link and at least a secondary link. The apparatus transmits a management frame on the primary link to indicate a multi-link capability of the AP. The apparatus configures the secondary link for one or more non-AP stations (STAs), which are capable of operating on the primary link and the secondary link, with multi-link capability and operating parameters through an association procedure on the primary link.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: November 29, 2022
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Kaiying Lu, Yongho Seok, James Chih-Shi Yee, Chao-Chun Wang, Jianhan Liu, Thomas Edward Pare, Jr.
  • Patent number: 11510181
    Abstract: Embodiments of the present invention provide a punctured preamble enabling wireless devices to efficiently use a channel (e.g., an 80 or 160 MHz channel) where a primary service is operating. A Wideband Channel Access Mechanism for 20 MHz/80 MHz operating STAs is provided so that a 20 MHz/80 MHz operating STA can dynamically move to a secondary channel to improve wireless performance of the STA. An AP coordinates the operating channel switch of the 20 MHz/80 MHz operating STA. An EHT cooperative multi-band operation can be applied to the preamble punctured PPDU for simultaneous multi-band operation.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: November 22, 2022
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Yongho Seok, Jianhan Liu, Chao-Chun Wang, James Chi-Shi Yee
  • Patent number: 11503638
    Abstract: A data unit (e.g., a physical layer convergence procedure (PLCP) protocol data unit (PPDU)) is detected at a first wireless device of a basic service set (BSS). The data unit was sent on a channel from a second wireless device of an overlapping basic service set (OBSS). The data unit is wide-bandwidth, occupying both a primary channel and a secondary channel of the wireless network. The first and second wireless devices are within a same spatial reuse group (SRG). The first wireless device stores the channel bandwidth of the data unit and a receive duration time of the data unit. During the receive duration time of the data unit, a SRG OBSS power density threshold is applied on the secondary channels that are within the channel bandwidth of the data unit, instead of applying a non-SRG OBSS power density threshold on those secondary channels.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: November 15, 2022
    Assignee: MEDIATEK SINGAPORE PTE LTD.
    Inventors: Yongho Seok, James June-Ming Wang, Chao-Chun Wang, Chih-Shi Yee
  • 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: 20220353910
    Abstract: A station (STA) associated with an access point (AP) receives, from the AP, an indication of an enhanced distributed channel access (EDCA) parameter set. The STA then updates one or more parameters of the EDCA parameter set with respect to a triggered transmission opportunity (TXOP) sharing (TXS) operation.
    Type: Application
    Filed: April 27, 2022
    Publication date: November 3, 2022
    Inventors: Kai Ying Lu, James Chih-Shi Yee, Yongho Seok
  • Patent number: 11490251
    Abstract: Methods and apparatus for performing secure ranging measurements between wireless devices are disclosed herein according to embodiments of the present invention. The described embodiments use key values to indicate which LTF sequence (e.g., LTF measurement exchange) to use for performing wireless ranging measurements. A LTF sequence that is received by a wireless device that does not correspond with the associated key value is determined to be invalid. Invalid LTF sequences may be disregarded as signal noise.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: November 1, 2022
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Yongho Seok, Chao-Chun Wang, Chih-Shi Yee
  • 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: 20220346171
    Abstract: Embodiments of the present invention provide improved multi-link operation over EML links. A non-AP MLD indicating support of EMLMR operation announces it's the number of spatial streams supported for receiving or transmitting after receiving the initial frame exchange during enhanced multi-link multi-radio (EMLMR) operation (MLD level capabilities). MLD level capabilities for operating over the EMLSR links is defined so that the EMLMR capable devices can improve/optimize their performance based on their computing capabilities and RF design.
    Type: Application
    Filed: April 19, 2022
    Publication date: October 27, 2022
    Inventors: Kai Ying Lu, Hung-Tao Hsieh, Cheng-Yi Chang, James Chih-Shi Yee, Yongho Seok
  • Patent number: 11483887
    Abstract: An apparatus (e.g., a station (STA) in a wireless local area network (WLAN)), receives, from an access point (AP), a frame comprising a multi-link configuration information element (IE) that indicates one or more enabled links as a subset of one or more supported links for a traffic identifier (TID). Accordingly, the apparatus transmits, to the AP, data over at least one of the one or more enabled links corresponding to the TID.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: October 25, 2022
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Yongho Seok, James Chih-Shi Yee
  • Publication number: 20220338253
    Abstract: Embodiments of the present invention provide improved multi-link operation over for recovering from a transmission failure on a primary link. During synchronous transmission on the NSTR pair of links, a transmission failure of an MPDU may happen on either link of the NSTR pair of links. Error recovery can be performed when an AP MLD is operating on the NSTR pair of links. When a transmission failure is detected, error recovery can be performed, and the timing of a synchronous transmission on the other wireless link can be managed to advantageously avoid IDC interference and improve performance of the wireless network.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 20, 2022
    Inventors: Kai Ying Lu, Yongho Seok, James Chih-Shi Yee
  • Publication number: 20220330225
    Abstract: A capability allocation method employed by a wireless fidelity (Wi-Fi) device includes: during association between the Wi-Fi device and another Wi-Fi device, setting up a first capability allocation of a first non-AP station (STA); and after the first non-AP STA associates with a first AP, changing the first capability allocation of the first non-AP STA in the absence of re-association. Each of the Wi-Fi device and the another Wi-Fi device includes a plurality of stations. The first AP is affiliated to the another Wi-Fi device. The first non-AP STA is affiliated to the Wi-Fi device.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 13, 2022
    Applicant: MEDIATEK INC.
    Inventors: Chien-Fang Hsu, Shen-Po Lin, Yongho Seok