Patents by Inventor Po Yuen
Po Yuen 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).
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Patent number: 11979929Abstract: Embodiments of the present invention provide methods for performing multi-link operations in a wireless network. The multi-link operations can include constrained multi-link operations configured to prevent or mitigate IDC interference, for example, by preventing or delaying access to a wireless medium while data is being transmitted or received on another wireless medium.Type: GrantFiled: May 29, 2020Date of Patent: May 7, 2024Assignee: MediaTek Singapore Pte. Ltd.Inventors: Yongho Seok, Weisung Tsao, James Chih-Shi Yee, Po-Yuen Cheng, Thomas Edward Pare, Jr.
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Patent number: 11943643Abstract: An access point (AP) and a station (STA) communicate with each other, with the AP indicating to the STA either or both of a preamble detection (PD) channel and a signaling (SIG) content channel and with the STA being initially monitoring a primary frequency segment of a plurality of frequency segments in an operating bandwidth of the AP. A downlink (DL) or triggered uplink (UL) communication is performed between the AP and the STA during a transmission opportunity (TXOP) such that: (i) during the TXOP, the STA monitors a preamble on the PD channel and decodes a SIG content on the SIG content channel; and (ii) after an end of the TXOP, the STA switches to the primary frequency segment.Type: GrantFiled: July 21, 2021Date of Patent: March 26, 2024Assignee: MediaTek Singapore Pte. Ltd.Inventors: Kai Ying Lu, Yongho Seok, Hung-Tao Hsieh, Cheng-Yi Chang, James Chih-Shi Yee, Jianhan Liu, Po-Yuen Cheng
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Patent number: 11936480Abstract: Methods and apparatus for enabling data transmission using HARQ in IEEE 802.11 systems are described. A method is disclosed, performed by a transmitting device, comprising computing a plurality of redundancy frames based on a plurality of data frames, transmitting the plurality of data frames to a receiving device, and transmitting a set of the plurality of redundancy frames to the receiving device determined by the transmitting device in response to receiving acknowledgement. One embodiment includes a method determining failed data frames of the plurality of data frames, requesting a set of the plurality of redundancy frames, and recovering the failed data frame using a decoder employing hard decision inputs. Other embodiments include an apparatus in a receiver device implementing the method of decoding the failed data frames using a decoder employing soft decision inputs.Type: GrantFiled: October 20, 2020Date of Patent: March 19, 2024Assignee: MediaTek Singapore Pte. Ltd.Inventors: Samat Shabdanov, Po-Yuen Cheng, Chung-Ta Ku, Weisung Tsao
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Patent number: 11929561Abstract: An antenna module includes a first antenna radiator including a feeding terminal, a second antenna radiator, a first ground radiator, a second ground radiator and a capacitive element. The second antenna radiator is disposed on one side of the first antenna radiator, and a first gap is formed between a main portion of the second antenna radiator and the first antenna radiator. The first ground radiator is disposed on another side of the first antenna radiator, and a second gap is formed between the first antenna radiator and the first antenna radiator. The second ground radiator is disposed between the second antenna radiator and the first ground radiator, and a third gap is formed between the second ground radiator and a first branch of the second antenna radiator. The capacitive element is disposed on the third gap and connects the second antenna radiator and the second ground radiator.Type: GrantFiled: July 5, 2022Date of Patent: March 12, 2024Assignee: PEGATRON CORPORATIONInventors: I-Shu Lee, Chih-Hung Cho, Hau Yuen Tan, Chien-Yi Wu, Po-Sheng Chen, Chao-Hsu Wu, Yi Chen, Hung-Ming Yu, Chih-Chien Hsieh
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Publication number: 20230354195Abstract: Systems and methods of transmitting and receiving a Wake-Up Radio (WUR) packet by using a simplified preamble structure that contains no training field. The preamble carries a signature sequence selected from a set of predefined sequences, each corresponding to a different data transmission rate. The preamble and the control information of the WUR packet are transmitted in the same rate as indicated by the selected sequence. Hence, a receiving WUR can determine the data transmission rate and locate the associated control information directly if a sequence that matches a predefined signature sequence is detected. The same sequence or in combination with an additional sequence in the preamble may also be used to indicate automatic gain control synchronization, packet type and other related information.Type: ApplicationFiled: July 10, 2023Publication date: November 2, 2023Inventors: Jianhan Liu, Po-Yuen Cheng, Thomas Edward Pare, JR.
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Publication number: 20230269592Abstract: An apparatus implemented in a master access point (AP) selects at least one basic service set (BSS) from one or more neighbor BSSs to form a spatial reuse group (SRG). The apparatus then performs coordinated spatial reuse (CSR) in the SRG with a set of overlapping basic service set (OBSS) power detection (PD) parameters.Type: ApplicationFiled: April 22, 2023Publication date: August 24, 2023Inventors: James June-Ming Wang, Chung-Ta Ku, Gabor Bajko, Gary A. Anwyl, Shuling Feng, Jianhan Liu, Yongho Seok, Po-Yuen Cheng, James Chih-Shi Yee, Thomas Edward Pare, JR.
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Patent number: 11729716Abstract: Systems and methods of transmitting and receiving a Wake-Up Radio (WUR) packet by using a simplified preamble structure that contains no training field. The preamble carries a signature sequence selected from a set of predefined sequences, each corresponding to a different data transmission rate. The preamble and the control information of the WUR packet are transmitted in the same rate as indicated by the selected sequence. Hence, a receiving WUR can determine the data transmission rate and locate the associated control information directly if a sequence that matches a predefined signature sequence is detected. The same sequence or in combination with an additional sequence in the preamble may also be used to indicate automatic gain control synchronization, packet type and other related information.Type: GrantFiled: March 22, 2018Date of Patent: August 15, 2023Inventors: Jianhan Liu, Po-Yuen Cheng, Thomas Edward Pare, Jr.
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Patent number: 11690107Abstract: Embodiments of the present invention are drawn to a computer-implemented process for automatically synchronizing TXOPs for a multi-link device (MLD) to improve wireless network performance and prevent IDC. The novel process can be performed by a multi-link device performing a multi-link operation, and the multi-link device can act as a wireless access point or a wireless station. Independent EDCA channel access can be performed at the multi-link device on a first wireless link and a second wireless link, and a back-off counter for a first wireless STA and a back-off counter for a second wireless STA are set according to the independent EDCA channel access. A TXOP is synchronously obtained on the first wireless link and the second wireless link responsive to the back-off counters expiring, and a multi-link operation is performed at the MLD using the first wireless link and the second wireless link during the TXOP.Type: GrantFiled: March 31, 2021Date of Patent: June 27, 2023Assignee: MEDIATEK SINGAPORE PTE. LTDInventors: Yongho Seok, Weisung Tsao, James Chih-Shi Yee, Po-Yuen Cheng
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Patent number: 11671837Abstract: An apparatus implemented in a master access point (AP) selects at least one basic service set (BSS) from one or more neighbor BSSs to form a spatial reuse group (SRG). The apparatus then performs coordinated spatial reuse (CSR) in the SRG with a set of overlapping basic service set (OBSS) power detection (PD) parameters.Type: GrantFiled: October 8, 2020Date of Patent: June 6, 2023Assignee: MediaTek Singapore Pte. Ltd.Inventors: James June-Ming Wang, Chung-Ta Ku, Gabor Bajko, Gary A. Anwyl, Shuling Feng, Jianhan Liu, Yongho Seok, Po-Yuen Cheng, James Chih-Shi Yee, Thomas Edward Pare, Jr.
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Patent number: 11612002Abstract: Embodiments of the present invention provide systems and methods for synchronous independent channel access in a wireless network. The synchronous independent channel access can be performed by a wireless station having multiple transceivers for simultaneous communication over multiple wireless bands. A wireless station can connect wirelessly to a wireless access point to access a first primary wireless band during a transmission opportunity, and can use early access on a second primary wireless band without receiving a transmission opportunity. The transmission and reception of data frames over the different primary channels are synchronized to prevent or mitigate inter-channel interference. According to some embodiments, the channels are synchronized using back-off procedures and/or padding to align the ending time of transmitted and received data frames, for example.Type: GrantFiled: March 24, 2020Date of Patent: March 21, 2023Assignee: MEDIATEK SINGAPORE PTE. LTD.Inventors: Yongho Seok, Jianhan Liu, James Chih-Shi Yee, Thomas Edward Pare, Jr., Chung-Ta Ku, Jr., Weisung Tsao, Po-Yuen Cheng
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Publication number: 20230050633Abstract: 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: ApplicationFiled: August 2, 2022Publication date: February 16, 2023Applicant: MediaTek Singapore Pte. Ltd.Inventors: Samat Shabdanov, Chien-Fang Hsu, Po-Yuen Cheng, Weisung Tsao, Chung-Ta Ku
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Publication number: 20220264592Abstract: Embodiments of the present invention substantially mitigate or prevent in-device and inter-device interference (e.g., AACI) by grouping wireless stations associated with an AP according to their estimated physical proximity with each other. The transmissions to/from STAs within a group can be coordinated so that a wireless transmission does not interfere with the wireless reception of another STA within the same group. In this way, desense is avoided and the wireless reception can be performed efficiently.Type: ApplicationFiled: February 15, 2022Publication date: August 18, 2022Inventors: Chung-Ta Ku, Weisung Tsao, Po-Yuen Cheng, Samet Shabdanov
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Publication number: 20220030450Abstract: An access point (AP) and a station (STA) communicate with each other, with the AP indicating to the STA either or both of a preamble detection (PD) channel and a signaling (SIG) content channel and with the STA being initially monitoring a primary frequency segment of a plurality of frequency segments in an operating bandwidth of the AP. A downlink (DL) or triggered uplink (UL) communication is performed between the AP and the STA during a transmission opportunity (TXOP) such that: (i) during the TXOP, the STA monitors a preamble on the PD channel and decodes a SIG content on the SIG content channel; and (ii) after an end of the TXOP, the STA switches to the primary frequency segment.Type: ApplicationFiled: July 21, 2021Publication date: January 27, 2022Inventors: Kai Ying Lu, Yongho Seok, Hung-Tao Hsieh, Cheng-Yi Chang, James Chih-Shi Yee, Jianhan Liu, Po-Yuen Cheng
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Publication number: 20210315025Abstract: Embodiments of the present invention a computer-implemented process for automatically synchronizing TXOPs for a multi-link device (MLD) to improve wireless network performance and prevent IDC is depicted according to embodiments of the present invention. The process can be performed by a multi-link device performing a multi-link operation, and the multi-link device can act as a wireless access point or a wireless station. The MLD includes a first wireless station (STA) associated with a first wireless link and a second wireless STA associated with a second wireless link. The MLD can include more wireless STAs for communicating over different wireless links.Type: ApplicationFiled: March 31, 2021Publication date: October 7, 2021Inventors: Yongho Seok, Weisung Tsao, James Chih-Shi Yee, Po-Yuen Cheng
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Publication number: 20210126743Abstract: Methods and apparatus for enabling data transmission using HARQ in IEEE 802.11 systems are described. A method is disclosed, performed by a transmitting device, comprising computing a plurality of redundancy frames based on a plurality of data frames, transmitting the plurality of data frames to a receiving device, and transmitting a set of the plurality of redundancy frames to the receiving device determined by the transmitting device in response to receiving acknowledgement. One embodiment includes a method determining failed data frames of the plurality of data frames, requesting a set of the plurality of redundancy frames, and recovering the failed data frame using a decoder employing hard decision inputs. Other embodiments include an apparatus in a receiver device implementing the method of decoding the failed data frames using a decoder employing soft decision inputs.Type: ApplicationFiled: October 20, 2020Publication date: April 29, 2021Inventors: Samat Shabdanov, Po-Yuen Cheng, Chung-Ta Ku, Weisung Tsao
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Publication number: 20210120427Abstract: An apparatus implemented in a master access point (AP) selects at least one basic service set (BSS) from one or more neighbor BSSs to form a spatial reuse group (SRG). The apparatus then performs coordinated spatial reuse (CSR) in the SRG with a set of overlapping basic service set (OBSS) power detection (PD) parameters.Type: ApplicationFiled: October 8, 2020Publication date: April 22, 2021Inventors: James June-Ming Wang, Chung-Ta Ku, Gabor Bajko, Gary A. Anwyl, Shuling Feng, Jianhan Liu, Yongho Seok, Po-Yuen Cheng, James Chih-Shi Yee, Thomas Edward Pare, JR.
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Publication number: 20200383156Abstract: Embodiments of the present invention provide systems and methods for accessing multiple wireless links simultaneously during a transmission opportunity granted to a wireless STA to increase throughput of the wireless network while advantageously preventing or mitigating the IDC interference caused by simultaneous transmission and reception of data over multiple wireless bands. According to some embodiments, a wireless STA can be prevented from accessing a wireless medium to transmit data to a peer wireless STA when the peer wireless STA is already transmitting data, or may be transmitting data, or is scheduled to transmit data in the immediate future. According to some embodiments, access to a wireless medium for performing a multi-link operation can be prevented responsive to IDC interference.Type: ApplicationFiled: May 29, 2020Publication date: December 3, 2020Inventors: Yongho Seok, Weisung Tsao, James Chih-Shi Yee, Po-Yuen Cheng, Thomas Edward Pare, JR.
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Publication number: 20200314920Abstract: Embodiments of the present invention provide systems and methods for synchronous independent channel access in a wireless network. The synchronous independent channel access can be performed by a wireless station having multiple transceivers for simultaneous communication over multiple wireless bands. A wireless station can connect wirelessly to a wireless access point to access a first primary wireless band during a transmission opportunity, and can use early access on a second primary wireless band without receiving a transmission opportunity. The transmission and reception of data frames over the different primary channels are synchronized to prevent or mitigate inter-channel interference. According to some embodiments, the channels are synchronized using back-off procedures and/or padding to align the ending time of transmitted and received data frames, for example.Type: ApplicationFiled: March 24, 2020Publication date: October 1, 2020Inventors: Yongho SEOK, Jianhan LIU, James Chih-Shi YEE, Thomas Edward PARE, JR., Chung-Ta KU, JR., Weisung TSAO, Po-Yuen Cheng
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Patent number: 10523377Abstract: A wireless communication method includes setting at least one specific subfield of a control field in a report frame, and transmitting the report frame to an access point for communicating with the access point on uplink (UL) Orthogonal Frequency-Division Multiple Access (OFDMA). In addition, the wireless communication method is performed by a program code loaded from a storage device of a wireless communication device and executed by a processor of the wireless communication device.Type: GrantFiled: August 29, 2017Date of Patent: December 31, 2019Assignee: MEDIATEK INC.Inventors: Chia-Hung Tsai, Weisung Tsao, Shihchieh Lee, Cheng-Hsi Marik Hsiao, Chung-Ta Ku, Po-Yuen Cheng
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Publication number: 20180295578Abstract: Systems and methods of transmitting and receiving a Wake-Up Radio (WUR) packet by using a simplified preamble structure that contains no training field. The preamble carries a signature sequence selected from a set of predefined sequences, each corresponding to a different data transmission rate. The preamble and the control information of the WUR packet are transmitted in the same rate as indicated by the selected sequence. Hence, a receiving WUR can determine the data transmission rate and locate the associated control information directly if a sequence that matches a predefined signature sequence is detected. The same sequence or in combination with an additional sequence in the preamble may also be used to indicate automatic gain control synchronization, packet type and other related information.Type: ApplicationFiled: March 22, 2018Publication date: October 11, 2018Inventors: Jianhan Liu, Po-Yuen Cheng, Thomas Edward Pare, JR.