Patents by Inventor Yunbo Yu
Yunbo 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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Publication number: 20240154749Abstract: This application provides a pilot signal transmission method and a related apparatus. The method includes: A first device determines a first frequency band to which a discrete RU allocated to the first device belongs; and the first device sends a first pilot signal of the first device to a second device on all pilot subcarriers included in the first frequency band. According to embodiments of this application, problems such as narrowband interference and frequency selective fading are avoided, and pilot signal transmission reliability is improved.Type: ApplicationFiled: December 29, 2023Publication date: May 9, 2024Inventors: Yuxin LU, Chenchen LIU, Jian YU, Yunbo LI, Ming GAN
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Publication number: 20240121030Abstract: A communication method and a communication apparatus. The method includes a first device sends a management frame, where the management frame includes a first bitmap, and a first puncturing pattern indicated by the first bitmap is a puncturing pattern not supported by non-orthogonal frequency division multiple access (non-OFDMA) transmission, and the first device sends a physical layer protocol data unit (PPDU) based on a second puncturing pattern corresponding to the first bitmap, where the second puncturing pattern is a puncturing pattern supported by the non-OFDMA transmission.Type: ApplicationFiled: December 15, 2023Publication date: April 11, 2024Inventors: Jian Yu, Yunbo Li, Ming Gan
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Patent number: 11943170Abstract: A method includes: An access point generates an NDPA frame, where the NDPA frame includes a station information field, and the station information field includes an AID subfield indicating an association identifier AID of a station; the station information field further includes a partial bandwidth information subfield; the partial bandwidth information subfield indicates an RU that is in a bandwidth corresponding to the NDPA frame and for which the station needs to feed back channel state information; and the bandwidth corresponding to the NDPA frame is greater than 160 MHz. The access point transmits the NDPA frame.Type: GrantFiled: August 4, 2023Date of Patent: March 26, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Jian Yu, Yuchen Guo, Chenchen Liu, Yunbo Li, Ming Gan, Dandan Liang
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Publication number: 20240097842Abstract: A method includes: A station receives a trigger frame from an access point. The trigger frame is used to trigger the station to perform EHT TB PPDU transmission, the trigger frame further indicates a resource unit allocated to the station, and the trigger frame includes first indication information indicating that the station can perform EHT TB PPDU transmission on a portion of the allocated resource unit. The station sends an EHT TB PPDU based on an indication of the first indication information.Type: ApplicationFiled: November 30, 2023Publication date: March 21, 2024Inventors: Yuxin LU, Ming GAN, Jian YU, Yunbo LI, Chenchen LIU, Bo GONG
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Publication number: 20240090059Abstract: A STA in a STA MLD sends an information frame on a link corresponding to the station, and the information frame is used to indicate a STA in an awake state in the STA MLD. An AP MLD receives the information frame, and sends a downlink message frame on a one or more links corresponding to a part of or all of STAs in the awake state in the STA MLD.Type: ApplicationFiled: November 20, 2023Publication date: March 14, 2024Inventors: Ming Gan, Yifan Zhou, Yunbo Li, Yuchen Guo, Jian Yu, Dandan Liang
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Publication number: 20240089815Abstract: This application relates to the field of wireless communication, and in particular, to individually addressed traffic indication methods and apparatuses applicable to multiple links, for example, in a wireless local area network supporting an 802.11be standard. In an example method, a first access point (AP) of a first access point multi-link device (AP MLD) generates and sends individually addressed traffic indication information. The individually addressed traffic indication information is used to indicate whether a non-AP MLD associated with the first AP MLD has a downlink individually addressed traffic and whether a non-AP MLD associated with a second AP MLD has a downlink individually addressed traffic. The second AP MLD is an AP MLD to which a non-transmitted AP belongs. The non-transmitted AP is in a multiple basic service set identifier (BSSID) set in which the first AP is located.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Ming GAN, Yiqing LI, Chenchen LIU, Jian YU, Mengshi HU, Yunbo LI, Yuchen GUO
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Patent number: 11930403Abstract: When a first device is an EHT site, a second device generates a frame in a first non-HT format or a frame in a first non-HT duplicated format, where at least three bits in the first seven bits of a scrambling sequence of the frame in the first non-HT format or the frame in the first non-HT duplicated format indicate a bandwidth mode of a channel; or when a first device is a VHT site or an HE site that does not support an EHT, a second device generates a frame in a second non-HT format or a frame in a second non-HT duplicated format, where two bits in the first seven bits of a scrambling sequence of the frame in the second non-HT format or the frame in the second non-HT duplicated format indicate a bandwidth mode of a channel.Type: GrantFiled: December 18, 2020Date of Patent: March 12, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Yunbo Li, Jian Yu, Ming Gan
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Publication number: 20230042287Abstract: The present application relates to a cerium-tin-based composite oxide catalyst for catalyzing purification of a nitrogen oxide, a preparation method and an application thereof. The catalyst has the following chemical composition: a cerium-tin oxide and an M oxide, wherein the M is selected from any one of or a combination of at least two of P, Ti, Zr, V, Mn, Fe, Cu, Al, Si, Ni, Hf, Nb, Ta, Cr, Mo, W, or Re.Type: ApplicationFiled: April 2, 2020Publication date: February 9, 2023Inventors: Hong He, Jingjing Liu, Yunbo Yu, Wenpo Shan, Xiaoyan Shi, Yulong Shan
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Publication number: 20150269574Abstract: An encryption key, a security authentication system and a security authentication method. The encryption key comprises a security module, a first control unit, a first oscillation transmission unit and a first oscillation receiving unit. The first oscillation receiving unit receives as input an oscillation signal transmitted through medium. The first oscillation transmission unit transmits output encryption information to the medium. The input of the first control unit is connected to the output of the first oscillation receiving unit; the control port of the first control unit is connected to the security module; and the output of the first control unit is connected to the input of the first oscillation transmission unit. Encryption information is transmitted wirelessly by the oscillation of the medium the encryption key resides in. Encryption information is transmitted between the encryption key and the mobile terminal by the oscillation of the medium without public network's intervention.Type: ApplicationFiled: October 14, 2013Publication date: September 24, 2015Inventors: Juan Peng, Xiaokun Zou, Yiwei Zhang, Jie Liang, Yunbo Yu
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Patent number: 8929805Abstract: A radio frequency communication system, method, and device operate in the VHF, UHF, or SHF range, where a controller controls the radio-frequency communication range provided by the VHF, UHF, or SHF radiation.Type: GrantFiled: November 18, 2010Date of Patent: January 6, 2015Assignee: Nationz Technologies Inc.Inventors: Yunbo Yu, Shan Zhu, Xikui Li, Zhiqin Hao, Yan Lu, Jianhua Liang
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Patent number: 8630584Abstract: A radio frequency (RF) device includes an RF transceiver, an RF antenna, and a magnetic signal detector. The RF is selected to be in the very high frequency (VHF), ultrahigh frequency (UHF), or super high frequency (SHF) bands such that the shielding effect is reduced and the RF device can be configured as a SIM card disposed inside a cellular phone with an increased RF communication range. The magnetic signal detector is used to sense a magnetic field signal from an RF reader, which includes an RF transceiver, an RF antenna, and a magnetic signal transmitter. The longer communication range afforded by the VHF, UHF, or SHF bands is reduced by the sensing of the magnetic field, thereby providing a communication range control, while the RF device and the RF reader exchange information through the RF channel with improved security as a result of the range control.Type: GrantFiled: January 21, 2011Date of Patent: January 14, 2014Assignee: Nationz Technologies Inc.Inventors: Yunbo Yu, Aimin Shen, Shan Zhu, Li Ouyang, Meixiang Li, Weixi Luo
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Publication number: 20130267256Abstract: Systems, devices, and methods allow real time information transmission between a real-time information service system and user terminals in an application space. The system includes an information server; a communication unit; and a positioning unit. The positioning unit and the communication unit are configured to communicate with a user terminal outside the information service system in an application space. The communication unit is configured to further communicate with the information server. The positioning unit is configured to determine a location of the user terminal. The information server is configured to store service information containing location parameters. The information server is configured to provide, via the communication unit, service information to the user terminal that matches the location of the user terminal.Type: ApplicationFiled: June 3, 2013Publication date: October 10, 2013Inventor: Yunbo YU
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Publication number: 20120297210Abstract: An integrated circuit (IC) card is disclosed. The IC card includes a microprocessor and memory module configured to perform a transaction associated with the IC card, and an interface device providing a power input line from an external source. The IC card also includes a power management module coupled between the microprocessor and memory module and the interface device to convert power from the power input line into electric charge, to store the electric charge internally, and to provide power to the microprocessor and memory module when the external source does not provide sufficient power to the IC card.Type: ApplicationFiled: July 27, 2012Publication date: November 22, 2012Applicant: NATIONZ TECHNOLOGIES INC.Inventors: YUNBO YU, PINGXI MA, HONGJUN HUANGFU, QUAN GAN, SHAN ZHU
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Patent number: 8061625Abstract: A radio frequency (RF) IC card device with very high frequency comprises an IC device (102), a radio frequency interface device (103), an RF antenna (104), an IC card interface (106) and an RF interface (107). Particularly, said RF interface device (103) and the RF interface (107) operate in a frequency band of UHF (ultra high frequency) or SHF (super high frequency); said RF antenna (104) is directly integrated on an IC card (100); the RF IC card device with very high frequency exchanges data with other RF devices via the RF interface (107).Type: GrantFiled: July 16, 2010Date of Patent: November 22, 2011Assignee: Nationz Technologies Inc.Inventors: Yunbo Yu, Shan Zhu
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Patent number: 8002196Abstract: A radio frequency (RF) IC card device with very high frequency comprises an IC device (102), a radio frequency interface device (103), an RF antenna (104), an IC card interface (106) and an RF interface (107). Particularly, said RF interface device (103) and the RF interface (107) operate in a frequency band of UHF (ultra high frequency) or SHF (super high frequency); said RF antenna (104) is directly integrated on an IC card (100); the RF IC card device with very high frequency exchanges data with other RF devices via the RF interface (107).Type: GrantFiled: April 30, 2010Date of Patent: August 23, 2011Assignee: Nationz Technologies Inc.Inventors: Yunbo Yu, Shan Zhu
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Publication number: 20110165862Abstract: A radio frequency (RF) device includes an RF transceiver, an RF antenna, and a magnetic signal detector. The RF is selected to be in the very high frequency (VHF), ultrahigh frequency (UHF), or super high frequency (SHF) bands such that the shielding effect is reduced and the RF device can be configured as a SIM card disposed inside a cellular phone with an increased RF communication range. The magnetic signal detector is used to sense a magnetic field signal from an RF reader, which includes an RF transceiver, an RF antenna, and a magnetic signal transmitter. The longer communication range afforded by the VHF, UHF, or SHF bands is reduced by the sensing of the magnetic field, thereby providing a communication range control, while the RF device and the RF reader exchange information through the RF channel with improved security as a result of the range control.Type: ApplicationFiled: January 21, 2011Publication date: July 7, 2011Inventors: Yunbo YU, Aimin Shen, Shan Zhu, Li Ouyang, Meixiang Li, Weixi Luo
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Publication number: 20110151900Abstract: A radio frequency communication system, method, and device operate in the VHF, UHF, or SHF range, where a controller controls the radio-frequency communication range provided by the VHF, UHF, or SHF radiation.Type: ApplicationFiled: November 18, 2010Publication date: June 23, 2011Inventors: Yunbo YU, Shan Zhu, Xikui Li, Zhiqin Hao, Yan Lu, Jianhua Liang
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Publication number: 20100273528Abstract: A radio frequency (RF) IC card device with very high frequency comprises an IC device (102), a radio frequency interface device (103), an RF antenna (104), an IC card interface (106) and an RF interface (107). Particularly, said RF interface device (103) and the RF interface (107) operate in a frequency band of UHF (ultra high frequency) or SHF (super high frequency); said RF antenna (104) is directly integrated on an IC card (100); the RF IC card device with very high frequency exchanges data with other RF devices via the RF interface (107).Type: ApplicationFiled: July 16, 2010Publication date: October 28, 2010Inventors: Yunbo Yu, Shan Zhu
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Publication number: 20100227644Abstract: A radio frequency (RF) IC card device with very high frequency comprises an IC device (102), a radio frequency interface device (103), an RF antenna (104), an IC card interface (106) and an RF interface (107). Particularly, said RF interface device (103) and the RF interface (107) operate in a frequency band of UHF (ultra high frequency) or SHF (super high frequency); said RF antenna (104) is directly integrated on an IC card (100); the RF IC card device with very high frequency exchanges data with other RF devices via the RF interface (107).Type: ApplicationFiled: April 30, 2010Publication date: September 9, 2010Inventors: Yunbo YU, Shan Zhu