Patents by Inventor Ching-Hwa Yu
Ching-Hwa Yu 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: 12075468Abstract: Provided are a method for data transmission, a device for data transmission, a multi-link system, and a storage medium. The method for data transmission is applied to a first device having a plurality of links to a second device. The method includes: determining an available link from the plurality of links for data to be transmitted to the second device; and transmitting the data based on a result of transmission right contention of the plurality of links.Type: GrantFiled: March 27, 2020Date of Patent: August 27, 2024Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.Inventors: Yuh-Ren Jauh, Yanchao Xu, Ching-Hwa Yu, Long Wang
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Publication number: 20240276575Abstract: Provided is a method for establishing a multi-link association. The method is applicable to an access point (AP) multi-link device (MLD), and the method comprises: receiving an association request frame from at least one station (STA) MLD, wherein the association request frame comprises a group of link medium access control (MAC) addresses, the group of link MAC addresses comprising a link MAC address of a link with which the STA MLD requests to establish an association; and transmitting an association response frame to the at least one STA MLD based on the link MAC address in the association request frame.Type: ApplicationFiled: April 26, 2024Publication date: August 15, 2024Inventors: Yanchao XU, Ching-Hwa YU, Long WANG
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Patent number: 11979773Abstract: Provided are a method and an apparatus for multi-link data transmission and a storage medium. The method includes: transmitting real time application (RTA) data over a primary link; and transmitting the RTA data at a high priority in response to a repetition condition being triggered. The apparatus includes: a memory; and at least one processor coupled to the memory and configured to transmit RTA data over a primary link; and transmit the RTA data at a high priority in response to a repetition condition being triggered.Type: GrantFiled: March 27, 2020Date of Patent: May 7, 2024Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.Inventors: Yuh-Ren Jauh, Yanchao Xu, Ching-Hwa Yu, Long Wang
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Publication number: 20220124798Abstract: Provided are a method for data transmission, a device for data transmission, a multi-link system, and a storage medium. The method for data transmission is applied to a first device having a plurality of links to a second device. The method includes: determining an available link from the plurality of links for data to be transmitted to the second device; and transmitting the data based on a result of transmission right contention of the plurality of links.Type: ApplicationFiled: March 27, 2020Publication date: April 21, 2022Inventors: Yuh-Ren Jauh, Yanchao Xu, Ching-Hwa Yu, Long Wang
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Publication number: 20220104071Abstract: Provided are a method and an apparatus for multi-link data transmission and a storage medium. The method includes: transmitting real time application (RTA) data over a primary link; and transmitting the RTA data at a high priority in response to a repetition condition being triggered. The apparatus includes: a memory; and at least one processor coupled to the memory and configured to transmit RTA data over a primary link; and transmit the RTA data at a high priority in response to a repetition condition being triggered.Type: ApplicationFiled: March 27, 2020Publication date: March 31, 2022Inventors: Yuh-Ren JAUH, Yanchao XU, Ching-Hwa YU, Long WANG
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Patent number: 11119181Abstract: A method of direction finding (DF) positioning based on a simplified antenna platform format in a wireless communication network is proposed. A receiver receives antenna platform format information of a transmitter having multiple antenna elements. The antenna platform format information comprises an antenna platform format indicator, antenna platform position and orientation information, a number of antenna elements, and switching delay, phase center, and polarization information for each antenna element. The receiver receives a plurality of direction finding sounding signals transmitted from the transmitter via the multiple antenna elements. The receiver performs a DF algorithm based on the plurality of DF sounding signals and the antenna platform format information and thereby estimating a DF solution. Finally, the receiver determines its own location information based on the estimated DF solution.Type: GrantFiled: June 25, 2019Date of Patent: September 14, 2021Assignee: MEDIATEK INC.Inventors: James June-Ming Wang, Kai-Chun Chou, Ching-Hwa Yu, Hsuan-Yu Liu
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Patent number: 10548166Abstract: A method of STA-initiated uplink (UL) aggregation is proposed in a wireless communication system. Under the STA-initiated UL aggregation, an STA can gain access to the medium through contention and after winning the TXOP, it passes the TXOP ownership to its AP to allow it to trigger UL MU transmission. Thus, the AP has increased chance of utilizing the medium while maintains fairness to both legacy APs and STAs. In addition, once AP takes over ownership of the TXOP, if it detects idle secondary channels, it can enable UL aggregation over the idle secondary channels, thereby fully utilizing the entire system bandwidth.Type: GrantFiled: September 11, 2018Date of Patent: January 28, 2020Assignee: MEDIATEK INC.Inventors: James June-Ming Wang, Ching-Hwa Yu, Yuh-Ren Jauh, Chih-Shi Yee
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Publication number: 20190310341Abstract: A method of direction finding (DF) positioning based on a simplified antenna platform format in a wireless communication network is proposed. A receiver receives antenna platform format information of a transmitter having multiple antenna elements. The antenna platform format information comprises an antenna platform format indicator, antenna platform position and orientation information, a number of antenna elements, and switching delay, phase center, and polarization information for each antenna element. The receiver receives a plurality of direction finding sounding signals transmitted from the transmitter via the multiple antenna elements. The receiver performs a DF algorithm based on the plurality of DF sounding signals and the antenna platform format information and thereby estimating a DF solution. Finally, the receiver determines its own location information based on the estimated DF solution.Type: ApplicationFiled: June 25, 2019Publication date: October 10, 2019Inventors: James June-Ming Wang, Kai-Chun Chou, Ching-Hwa Yu, Hsuan-Yu Liu
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Patent number: 10371783Abstract: A method of direction finding (DF) positioning based on a simplified antenna platform format in a wireless communication network is proposed. A receiver receives antenna platform format information of a transmitter having multiple antenna elements. The antenna platform format information comprises an antenna platform format indicator, antenna platform position and orientation information, a number of antenna elements, and switching delay, phase center, and polarization information for each antenna element. The receiver receives a plurality of direction finding sounding signals transmitted from the transmitter via the multiple antenna elements. The receiver performs a DF algorithm based on the plurality of DF sounding signals and the antenna platform format information and thereby estimating a DF solution. Finally, the receiver determines its own location information based on the estimated DF solution.Type: GrantFiled: August 18, 2015Date of Patent: August 6, 2019Assignee: MEDIATEK INC.Inventors: James June-Ming Wang, Kai-Chun Chou, Ching-Hwa Yu, Hsuan-Yu Liu
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Publication number: 20190029037Abstract: A method of STA-initiated uplink (UL) aggregation is proposed in a wireless communication system. Under the STA-initiated UL aggregation, an STA can gain access to the medium through contention and after winning the TXOP, it passes the TXOP ownership to its AP to allow it to trigger UL MU transmission. Thus, the AP has increased chance of utilizing the medium while maintains fairness to both legacy APs and STAs. In addition, once AP takes over ownership of the TXOP, if it detects idle secondary channels, it can enable UL aggregation over the idle secondary channels, thereby fully utilizing the entire system bandwidth.Type: ApplicationFiled: September 11, 2018Publication date: January 24, 2019Inventors: James June-Ming Wang, Ching-Hwa Yu, Yuh-Ren Jauh, Chih-Shi Yee
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Patent number: 10104676Abstract: A method of performing OFDMA transmission with aggregation from multiple access categories to improve channel utilization of a wireless channel is proposed. In one novel aspect, data from multiple access categories are allowed to be aggregated and transmitted in the same packet to utilize idle time efficiently. In downlink OFDMA, AP can send different AC data to different STAs so that AP can better arrange the transmission resource block. If the resource for one STA has long enough idle time, AP can aggregate more data that is different to the current AC for the same STA to better utilize the resource. In UL OFDMA, different STAs can send different AC data to AP. If the resource for one STA has long enough idle time, the STA can aggregate more data that is different to the current AC to better utilize the resource.Type: GrantFiled: May 3, 2016Date of Patent: October 16, 2018Assignee: MEDIATEK INC.Inventors: Yuh-Ren Jauh, Ching-Hwa Yu, Chao-Chun Wang
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Patent number: 10091813Abstract: A method of STA-initiated uplink (UL) aggregation is proposed in a wireless communication system. Under the STA-initiated UL aggregation, an STA can gain access to the medium through contention and after winning the TXOP, it passes the TXOP ownership to its AP to allow it to trigger UL MU transmission. Thus, the AP has increased chance of utilizing the medium while maintains fairness to both legacy APs and STAs. In addition, once AP takes over ownership of the TXOP, if it detects idle secondary channels, it can enable UL aggregation over the idle secondary channels, thereby fully utilizing the entire system bandwidth.Type: GrantFiled: December 1, 2015Date of Patent: October 2, 2018Assignee: MEDIATEK INC.Inventors: James June-Ming Wang, Ching-Hwa Yu, Yuh-Ren Jauh, Chih-Shi Yee
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Patent number: 10051588Abstract: A method of mitigating inter-BSS interference via synchronized inter-BSS operation is proposed. By aligning the transmission of UL and DL transmission in two overlapping OBSSs, the inter-BSS STA-to-STA and inter-BSS AP-to-AP types of interference can be eliminated. Furthermore, based on the BSS overlapping geometry and the STA location, different interference mitigation schemes can be applied to mitigate inter-BSS AP-to-STA and inter-BSS STA-to-AP types of interference.Type: GrantFiled: November 26, 2015Date of Patent: August 14, 2018Assignee: MEDIATEK INC.Inventors: James June-Ming Wang, Yuh-Ren Jauh, Ching-Hwa Yu, Chih-Shi Yee, Yasantha N. Rajakarunanayake, Tianyu Wu
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Patent number: 10004035Abstract: A method of managing data transmission for a receiving terminal of a first wireless system wherein the first wireless system coexists with at least one second wireless system includes receiving a transmission schedule of each of the at least one second wireless system; determining a usable time period for the first wireless system according to the transmission schedule of each of the at least one second wireless system; and sending a clear to send (CTS) to self signal or a power saving signal to indicate an interruption of the usable time period according to a length of the usable time period.Type: GrantFiled: October 13, 2014Date of Patent: June 19, 2018Assignee: MediaTek Inc.Inventors: Chia-Hsiang Hsu, Ching-Hwa Yu, Li-Chun Ko
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Patent number: 9980292Abstract: A method of performing contention-based uplink OFDMA transmission is proposed in accordance with one novel aspect. A wireless communications station (an AP) reserves both dedicated resource and contention resource for uplink OFDMA operation for a list of communications devices (STAs). For contention-based random access, the AP does not need to collect traffic requests from the STAs. The AP only needs to make simple resource arrangement. The AP only needs to specify the allocated resource for random access and the uplink OFDMA operation duration and timing for each uplink OFDMA packet. Each STA having traffic request will contend the resource based on a random access probability scheme.Type: GrantFiled: October 28, 2015Date of Patent: May 22, 2018Assignee: MEDIATEK INC.Inventors: Yuh-Ren Jauh, Ching-Hwa Yu, James June-Ming Wang, Chao-Chun Wang
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Publication number: 20180103127Abstract: A method of managing Universal Serial Bus (USB) data transmission and wireless communication of an electronic device is disclosed.Type: ApplicationFiled: December 11, 2017Publication date: April 12, 2018Inventors: Cheok Yan Goh, Yu-Hsun Chen, Chih-Chieh Chou, Horng-Bin Wang, Ching-Hwa Yu
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Patent number: 9820162Abstract: A method of spatial re-use with TPC and adaptive CCA is proposed. A spatial re-use station detects spatial re-use information associated with other peer OBSS stations. The spatial re-use information comprises a TX spectral density (power/Hz) and received signal or interference information of each inter-BSS peer station. The spatial re-use STA determines a TX spectral density based on the detected spatial re-use information. The spatial re-use STA then contends the medium for spatial re-use transmission opportunity (TXOP) with an intra-BSS peer station. Finally, the spatial re-use STA starts spatial re-use frame exchange with the intra-BSS peer station using the determined TX spectral density. By adjusting the TX spectral density, the spatial re-use STA adapts its CCA level to spatially reuse the medium without causing collision and interference to OBSS stations and thus increases network throughput.Type: GrantFiled: February 9, 2016Date of Patent: November 14, 2017Assignee: MEDIATEK SINGAPORE PTE LTD.Inventors: James June-Ming Wang, Jianhan Liu, YungPing Hsu, Ching-Hwa Yu
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Patent number: 9813189Abstract: A method of fast link adaptation for Bluetooth long-range wireless networks is provided. A data packet comprises a preamble, a first packet portion including a rate indication field, and a second packet portion including a PDU. The first packet portion is encoded using a first modulation and coding scheme with a first rate while the second packet portion is encoded using a second modulation and coding scheme with a second rate indicated by the RI field. A transmitter thus can use different MCS options to support variable data rates by adapting to channel conditions, and then uses the novel RI field to indicate the data rate to a receiver dynamically. As a result, fast link adaptation can be achieved for different applications with different rate requirements, to provide higher data rate, reduce connection time, lower power consumption, and improve link quality.Type: GrantFiled: October 2, 2015Date of Patent: November 7, 2017Assignee: MEDIATEK INC.Inventors: Kai-Chun Chou, James June-Ming Wang, Li-Chun Ko, Ching-Hwa Yu
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Patent number: 9801005Abstract: A method of period allocation for a medium to be utilized by a first wireless communication device comprising at least one wireless local area network (WLAN) module includes while the first wireless communication device occupies the medium, detecting a termination period of a Network Allocation Vector (NAV) of the medium; and the first wireless communication device extending the termination period of the NAV of the medium if the termination period of the NAV is earlier than an expected period.Type: GrantFiled: June 17, 2015Date of Patent: October 24, 2017Assignee: MEDIATEK INC.Inventors: Shih-Chang Su, Ching-Hwa Yu
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Patent number: 9774645Abstract: A method of managing BSS network loading is proposed. An access point (AP) transmits BSS session time and data limit element in beacon or probe response frame or a response frame to a service request frame. The AP determines the session time and data limit according to the network load and AP resourced. The AP adjusts the session time and data limit dynamically. An STA decides whether to join a specific BSS based on the BSS session time and the BSS session data limit. AP encourages or discourages the STA to join the BSS by increasing or reducing the session time and data limit. The per-AP loading will be distributed according to AP's capabilities.Type: GrantFiled: June 12, 2015Date of Patent: September 26, 2017Assignee: MEDIATEK SINGAPOREInventors: Chao-Chun Wang, Gabor Bajko, Chih-Shi Yee, Ching-Hwa Yu, Rongsheng Huang