Patents by Inventor Teyan CHEN
Teyan CHEN 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: 11923888Abstract: Embodiments of this application disclose a full-duplex self-interference cancellation method and apparatus. The full-duplex self-interference cancellation method may be applied to the field of radio frequency self-interference cancellation in a full-duplex scenario. The full-duplex self-interference cancellation method is implemented by a full-duplex self-interference cancellation apparatus with self-interference reconstruction modules of two levels, and the full-duplex self-interference cancellation apparatus is implemented by a terminal. This greatly reduces hardware implementation complexity and costs of the second self-interference reconstruction module, and improves a full-duplex self-interference cancellation capability.Type: GrantFiled: October 25, 2021Date of Patent: March 5, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Teyan Chen, Ju Cao, Tao Wu
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Patent number: 11888608Abstract: Embodiments of this application disclose a data transmission method, apparatus, and system in backscatter communication, to improve spectrum usage efficiency of data. An embodiment of this application provides a data transmission method in backscatter communication, including: generating a first frame, where the first frame carries first data and second data, the first data and the second data in the first frame use different modulation schemes, the first data is sent to a first tag, and the second data is sent to a second tag; and sending the first frame to the first tag and the second tag.Type: GrantFiled: March 16, 2022Date of Patent: January 30, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Tao Wu, Teyan Chen
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Publication number: 20220209886Abstract: Embodiments of this application disclose a data transmission method, apparatus, and system in backscatter communication, to improve spectrum usage efficiency of data. An embodiment of this application provides a data transmission method in backscatter communication, including: generating a first frame, where the first frame carries first data and second data, the first data and the second data in the first frame use different modulation schemes, the first data is sent to a first tag, and the second data is sent to a second tag; and sending the first frame to the first tag and the second tag.Type: ApplicationFiled: March 16, 2022Publication date: June 30, 2022Inventors: Tao WU, Teyan CHEN
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Publication number: 20220045714Abstract: Embodiments of this application disclose a full-duplex self-interference cancellation method and apparatus. The full-duplex self-interference cancellation method may be applied to the field of radio frequency self-interference cancellation in a full-duplex scenario. The full-duplex self-interference cancellation method is implemented by a full-duplex self-interference cancellation apparatus with self-interference reconstruction modules of two levels, and the full-duplex self-interference cancellation apparatus is implemented by a terminal. This greatly reduces hardware implementation complexity and costs of the second self-interference reconstruction module, and improves a full-duplex self-interference cancellation capability.Type: ApplicationFiled: October 25, 2021Publication date: February 10, 2022Inventors: Teyan CHEN, Ju CAO, Tao WU
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Publication number: 20220007386Abstract: Embodiments of this application relate to the wireless transmission field, and disclose a data transmission method and apparatus. The method includes: A transmit end generates a data packet; and the transmit end sends the data packet to a receive end, where the data packet includes at least two pieces of video service data having different priorities, and the pieces of video service data having different priorities are carried on different communications resources for transmission.Type: ApplicationFiled: September 17, 2021Publication date: January 6, 2022Inventors: Tao WU, Teyan CHEN, Jian YU, Jia JIA, Yingzhuang LIU
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Patent number: 11172372Abstract: An information transmission method and apparatus, the method including determining, by a first communications apparatus, an area in which a terminal device is located, where the area includes overlapping coverage area between the first communications apparatus and at least one second communications apparatus, and, non-overlapping coverage area between the first communications apparatus and the at least one second communications apparatus, and the first communications apparatus is adjacent to the at least one second communications apparatus, and sending, by the first communications apparatus, information to the terminal device through a first channel if the terminal device is located in the overlapping coverage area, and sending, by the first communications apparatus, information to the terminal device through a second channel if the terminal device is located in the non-overlapping coverage areas.Type: GrantFiled: January 22, 2020Date of Patent: November 9, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Tao Wu, Teyan Chen
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Patent number: 11038272Abstract: A radio frequency (RF) antenna unit that includes a first antenna and a second antenna. The first antenna is positioned on a reflector element, and includes at least three inverted-F antenna (IFAs) elements that are electrically connected to a first RF signal port and that each have an associated tunable element that controls excitation of the IFA element, the tunable elements being operative to control a polarization direction of the first antenna. The second antenna is co-located on the reflector element with the first antenna, and includes a plurality of antenna elements.Type: GrantFiled: May 29, 2017Date of Patent: June 15, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Paul Robert Watson, Halim Boutayeb, Teyan Chen, Jingjing Huang, Tao Wu
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Patent number: 11018913Abstract: This application provides a multichannel-based signal transmission method and apparatus. The method includes: combining N groups of lower-order modulation symbols into N groups of higher-order modulation symbols, where an ith higher-order modulation symbol in each group of higher-order modulation symbols is obtained by combining ith lower-order modulation symbols in all the N groups of lower-order modulation symbols, each group of lower-order modulation symbols includes M lower-order modulation symbols, i=1, 2, . . . , M, N is a positive integer greater than 1, and M is a positive integer greater than 1; determining N to-be-sent signals based on the N groups of higher-order modulation symbols; and sending a kth to-be-sent signal in the N to-be-sent signals by using a kth channel in N channels, where k=1, 2, . . . , N.Type: GrantFiled: September 30, 2019Date of Patent: May 25, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Tao Wu, Teyan Chen
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Patent number: 10993262Abstract: A method for transmission and reception in parallel on dual channels includes, when detecting that a first channel is occupied by CSMA contention, determining, by an AP, first transmission duration of a first channel data packet; determining, by means of CCA detection, that a second channel is idle, where the second channel is used to transmit a second channel data packet whose transmission direction is opposite to a transmission direction of the first channel; determining, using the first transmission duration, second transmission duration for transmitting the second channel data packet, and transmitting the second channel data packet according to the second transmission duration, where an end time of transmission of the second channel data is not later than an end time of transmission of the first channel data.Type: GrantFiled: July 16, 2019Date of Patent: April 27, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yun Liu, Sheng Liu, Teyan Chen
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Publication number: 20200335879Abstract: The disclosed structures and methods are directed to antenna systems configured to transmit and receive a wireless signal in and from different directions. An antenna structure comprises a pair of horizontal-polarization (HP) antenna units forming a first parallel-plate waveguide. One of the HP antenna units and a base unit form a second parallel-plate waveguide. The antenna further comprises a pair of vertical-polarization (VP) antenna units each located in one of the first and second parallel-plate waveguides. Each HP antenna unit comprises inverted F antennas (IFAs) configured to radiate a radio-frequency (RF) waves that are horizontally polarized. Each VP antenna unit comprises VP excitation elements configured to radiate the RF waves that are vertically polarized. A method for manufacturing of the antenna structure is also disclosed.Type: ApplicationFiled: April 18, 2019Publication date: October 22, 2020Inventors: Halim BOUTAYEB, Fayez HYJAZIE, Teyan CHEN, Tao WU, Matthew MILYAVSKY
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Patent number: 10797408Abstract: The disclosed structures and methods are directed to antenna systems configured to transmit and receive a wireless signal in and from different directions. An antenna structure comprises a pair of horizontal-polarization (HP) antenna units forming a first parallel-plate waveguide. One of the HP antenna units and a base unit form a second parallel-plate waveguide. The antenna further comprises a pair of vertical-polarization (VP) antenna units each located in one of the first and second parallel-plate waveguides. Each HP antenna unit comprises inverted F antennas (IFAs) configured to radiate a radio-frequency (RF) waves that are horizontally polarized. Each VP antenna unit comprises VP excitation elements configured to radiate the RF waves that are vertically polarized. A method for manufacturing of the antenna structure is also disclosed.Type: GrantFiled: April 18, 2019Date of Patent: October 6, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Halim Boutayeb, Fayez Hyjazie, Teyan Chen, Tao Wu, Matthew Milyavsky
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Publication number: 20200162934Abstract: An information transmission method and apparatus, the method including determining, by a first communications apparatus, an area in which a terminal device is located, where the area includes overlapping coverage area between the first communications apparatus and at least one second communications apparatus, and, non-overlapping coverage area between the first communications apparatus and the at least one second communications apparatus, and the first communications apparatus is adjacent to the at least one second communications apparatus, and sending, by the first communications apparatus, information to the terminal device through a first channel if the terminal device is located in the overlapping coverage area, and sending, by the first communications apparatus, information to the terminal device through a second channel if the terminal device is located in the non-overlapping coverage areas.Type: ApplicationFiled: January 22, 2020Publication date: May 21, 2020Inventors: Tao Wu, Teyan Chen
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Publication number: 20200099557Abstract: This application provides a multichannel-based signal transmission method and apparatus. The method includes: combining N groups of lower-order modulation symbols into N groups of higher-order modulation symbols, where an ith higher-order modulation symbol in each group of higher-order modulation symbols is obtained by combining ith lower-order modulation symbols in all the N groups of lower-order modulation symbols, each group of lower-order modulation symbols includes M lower-order modulation symbols, i=1, 2, . . . , M, N is a positive integer greater than 1, and M is a positive integer greater than 1; determining N to-be-sent signals based on the N groups of higher-order modulation symbols; and sending a kth to-be-sent signal in the N to-be-sent signals by using a kth channel in N channels, where k=1, 2, . . . , N.Type: ApplicationFiled: September 30, 2019Publication date: March 26, 2020Inventors: Tao Wu, Teyan Chen
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Patent number: 10555340Abstract: A method for transmission and reception in parallel on dual channels includes, when detecting that a first channel is occupied by CSMA contention, determining, by an AP, first transmission duration of a first channel data packet. The method additionally includes determining, by means of CCA detection, that a second channel is idle, where the second channel is used to transmit a second channel data packet whose transmission direction is opposite to a transmission direction of the first channel. The method additionally includes determining, by using the first transmission duration, second transmission duration for transmitting the second channel data packet, and transmitting the second channel data packet according to the second transmission duration, where an end time of transmission of the second channel data is not later than an end time of transmission of the first channel data.Type: GrantFiled: December 1, 2017Date of Patent: February 4, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yun Liu, Sheng Liu, Teyan Chen
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Publication number: 20190342917Abstract: A method for transmission and reception in parallel on dual channels includes, when detecting that a first channel is occupied by CSMA contention, determining, by an AP, first transmission duration of a first channel data packet; determining, by means of CCA detection, that a second channel is idle, where the second channel is used to transmit a second channel data packet whose transmission direction is opposite to a transmission direction of the first channel; determining, using the first transmission duration, second transmission duration for transmitting the second channel data packet, and transmitting the second channel data packet according to the second transmission duration, where an end time of transmission of the second channel data is not later than an end time of transmission of the first channel data.Type: ApplicationFiled: July 16, 2019Publication date: November 7, 2019Inventors: Yun Liu, Sheng Liu, Teyan Chen
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Patent number: 10461974Abstract: This application provides a multichannel-based signal transmission method and apparatus. The method includes: combining N groups of lower-order modulation symbols into N groups of higher-order modulation symbols, where an ith higher-order modulation symbol in each group of higher-order modulation symbols is obtained by combining ith lower-order modulation symbols in all the N groups of lower-order modulation symbols, each group of lower-order modulation symbols includes M lower-order modulation symbols, i=1, 2, . . . , M, N is a positive integer greater than 1, and M is a positive integer greater than 1; determining N to-be-sent signals based on the N groups of higher-order modulation symbols; and sending a kth to-be-sent signal in the N to-be-sent signals by using a kth channel in N channels, where k=1, 2, . . . , N.Type: GrantFiled: January 14, 2019Date of Patent: October 29, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Tao Wu, Teyan Chen
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Patent number: 10411871Abstract: Embodiments of the present invention provide a wireless communication method, device, and system, which relate to the field of communications technologies, and can resolve a problem of low carrier utilization in a wireless communications system. In the method, a wireless access device communicates with user equipment on a first carrier by using at least three timeslots, where the at least three timeslots include at least one full-duplex timeslot, at least one downlink timeslot, and at least one uplink timeslot; the wireless access device performs one or more of signal sending or signal reception in the full-duplex timeslot; the wireless access device sends a downlink signal in the downlink timeslot; and the wireless access device receives an uplink signal in the uplink timeslot. The embodiments of the present invention are used for wireless communication.Type: GrantFiled: February 23, 2017Date of Patent: September 10, 2019Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Sheng Liu, Teyan Chen
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Patent number: 10397956Abstract: A method for transmission and reception in parallel on dual channels includes, when detecting that a first channel is occupied by CSMA contention, determining, by an AP, first transmission duration of a first channel data packet. The method additionally includes determining, by means of CCA detection, that a second channel is idle, where the second channel is used to transmit a second channel data packet whose transmission direction is opposite to a transmission direction of the first channel. The method additionally includes determining, by using the first transmission duration, second transmission duration for transmitting the second channel data packet, and transmitting the second channel data packet according to the second transmission duration, where an end time of transmission of the second channel data is not later than an end time of transmission of the first channel data.Type: GrantFiled: December 1, 2017Date of Patent: August 27, 2019Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yun Liu, Sheng Liu, Teyan Chen
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Patent number: 10383108Abstract: The present invention provides a data interference cancellation method, a transmit end, a receive end, and a system. The method includes allocating, by a transmit end, a corresponding downlink transmission resource to each transmission group, where at least one transmission group includes at least two transmit antennas and separately sending, by the transmit end, downlink data on the downlink transmission resource corresponding to each transmission group.Type: GrantFiled: April 12, 2017Date of Patent: August 13, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Teyan Chen, Sheng Liu
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Patent number: 10326628Abstract: Embodiments of the present application provide a signal processing method and apparatus, and a device. The embodiments relate to an MU-MIMO system. The signal processing apparatus includes: a signal obtaining module and a sending module. A signal includes N spatial flows, and the signal includes a training field, where the training field includes a first part and a second part. Sub-carriers of an OFDM symbol in the second part of the training field are divided into N training sub-carrier sets TSSs in a division manner that is the same as a division manner of sub-carriers of an OFDM symbol in the first part of the training field, and each spatial flow corresponds to at least one sub-carrier in a TSS, in each frequency domain location, of each OFDM symbol in the second part of the training field. So that precision of the channel estimation is improved.Type: GrantFiled: April 21, 2017Date of Patent: June 18, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Sheng Liu, Weishan Lu, Teyan Chen