Patents by Inventor Qiuliang Xu
Qiuliang Xu 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: 11996625Abstract: A multi-antenna system and an electronic device comprising the same. An intelligent multi-antenna solution in which antennas are laid out at the top, the side, and the bottom of an electronic device is used, so that three antenna groups including a top antenna group, a middle antenna group, and a bottom antenna group are respectively formed, and antenna performance in a plurality of scenarios such as a free-space scenario, a portrait-mode holding scenario, and a landscape-mode holding scenario is considered, to improve antenna radiation efficiency.Type: GrantFiled: September 18, 2020Date of Patent: May 28, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jiaqing You, Hanyang Wang, Xianbin Zhu, Yan Wang, Laiwei Shen, Liang Xue, Qiuliang Xu
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Patent number: 11601145Abstract: A tunable antenna. includes a radio frequency integrated circuit, a first frequency modulation branch coupled to the radio frequency integrated circuit, a first antenna coupled to the radio frequency integrated circuit through the first frequency modulation branch, a second antenna coupled to the radio frequency integrated circuit through a second frequency modulation branch. The first antenna corresponds to a first frequency, the second antenna corresponds to a second frequency, and the first frequency and the second frequency are respectively a transmit frequency and a receive frequency in a specified frequency band. The first antenna and the second antenna are respectively connected to the radio frequency integrated circuit through the frequency modulation branches when the tunable antenna is being designed.Type: GrantFiled: July 31, 2018Date of Patent: March 7, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Qiuliang Xu, Jianwen Lei, Meng Hou, Dan Qiu, Hui Wang, Xiaofei Xia
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Publication number: 20220344807Abstract: A multi-antenna system and an electronic device comprising the same. An intelligent multi-antenna solution in which antennas are laid out at the top, the side, and the bottom of an electronic device is used, so that three antenna groups including a top antenna group, a middle antenna group, and a bottom antenna group are respectively formed, and antenna performance in a plurality of scenarios such as a free-space scenario, a portrait-mode holding scenario, and a landscape-mode holding scenario is considered, to improve antenna radiation efficiency.Type: ApplicationFiled: September 18, 2020Publication date: October 27, 2022Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jiaqing YOU, Hanyang WANG, Xianbin ZHU, Yan WANG, Laiwei SHEN, Liang XUE, Qiuliang XU
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Patent number: 11177568Abstract: An antenna resource scheduling method and device for improving radiation efficiency of an antenna in a sideband area of an operating band by obtaining an operating frequency of an antenna, where the operating frequency is a frequency currently used by the device during communication; determining an operating band based on the operating frequency, where the operating band is a band to which the operating frequency belongs; determining a target impedance parameter based on the operating band and the operating frequency; and adjusting an impedance parameter of an impedance circuit to the target impedance parameter.Type: GrantFiled: September 26, 2017Date of Patent: November 16, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xiaoyi Wang, Enliang Xiong, Jintao Wang, Jia Xu, Qiuliang Xu
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Publication number: 20210281281Abstract: A tunable antenna. includes a radio frequency integrated circuit, a first frequency modulation branch coupled to the radio frequency integrated circuit, a first antenna coupled to the radio frequency integrated circuit through the first frequency modulation branch, a second antenna coupled to the radio frequency integrated circuit through a second frequency modulation branch. The first antenna corresponds to a first frequency, the second antenna corresponds to a second frequency, and the first frequency and the second frequency are respectively a transmit frequency and a receive frequency in a specified frequency band. The first antenna and the second antenna are respectively connected to the radio frequency integrated circuit through the frequency modulation branches when the tunable antenna is being designed.Type: ApplicationFiled: July 31, 2018Publication date: September 9, 2021Inventors: Qiuliang Xu, Jianwen Lei, Meng Hou, Dan Qiu, Hui Wang, Xiaofei Xia
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Publication number: 20200052400Abstract: Embodiments of this application provide an antenna resource scheduling method and a device, and relate to the field of antenna technologies, to improve radiation efficiency of an antenna in a sideband area of an operating band band. A main solution is: obtaining, by the device, an operating frequency of an antenna, where the operating frequency is a frequency currently used by the device during communication; determining an operating band based on the operating frequency, where the operating band is a band to which the operating frequency belongs; determining a target impedance parameter based on the operating band and the operating frequency; and adjusting an impedance parameter of an impedance circuit to the target impedance parameter. The embodiments of this application are used for resource scheduling.Type: ApplicationFiled: September 26, 2017Publication date: February 13, 2020Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xiaoyi Wang, Enliang Xiong, Jintao Wang, Jia Xu, Qiuliang Xu
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Patent number: 10090907Abstract: The present invention is applicable to the field of mobile terminals and provides an antenna switching system and method. The antenna switching system includes a radio-frequency transceiver circuit, a primary antenna, and a parasitic antenna, where the primary antenna is connected to the radio-frequency transceiver circuit, and further includes a switch circuit, configured to connect, when the parasitic antenna is used to receive or send a radio-frequency signal, the parasitic antenna and the radio-frequency transceiver circuit. If the parasitic antenna is grounded, the parasitic antenna may be configured to spread a spectrum. In addition, when carrier aggregation is needed, the parasitic antenna is connected to the radio-frequency transceiver circuit, so as to become an independent receive or transmit antenna.Type: GrantFiled: July 29, 2016Date of Patent: October 2, 2018Assignee: Huawei Device (Dongguan) Co., Ltd.Inventors: Qiuliang Xu, Liping Yang, Changfeng Zhang, Zhijun Chen
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Patent number: 9948328Abstract: Embodiments disclose a radio frequency front-end system and a signal transmission control method. The system includes a first antenna, a second antenna, a first radio frequency circuit, a second radio frequency circuit, and a controller. The controller is configured to acquire a transmission frequency band selected by the first radio frequency circuit, and when a frequency in the transmission frequency band selected by the first radio frequency circuit is less than a preset frequency, to control the first radio frequency circuit to connect to the second antenna. The controller is further configured to disconnect a connection between the second radio frequency circuit and the second antenna, or to maintain an open circuit state between the second radio frequency circuit and the second antenna.Type: GrantFiled: March 26, 2014Date of Patent: April 17, 2018Assignee: HUAWEI DEVICE (DONGGUAN) CO., LTD.Inventors: Hongyu Wang, Xiang Che, Qiuliang Xu, Liping Yang, Jia Xu, Zhigang Liu, Zhenyu Liu
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Publication number: 20170126257Abstract: Embodiments disclose a radio frequency front-end system and a signal transmission control method. The system includes a first antenna, a second antenna, a first radio frequency circuit, a second radio frequency circuit, and a controller. The controller is configured to acquire a transmission frequency band selected by the first radio frequency circuit, and when a frequency in the transmission frequency band selected by the first radio frequency circuit is less than a preset frequency, to control the first radio frequency circuit to connect to the second antenna. The controller is further configured to disconnect a connection between the second radio frequency circuit and the second antenna, or to maintain an open circuit state between the second radio frequency circuit and the second antenna.Type: ApplicationFiled: March 26, 2014Publication date: May 4, 2017Inventors: Hongyu Wang, Xiang Che, Qiuliang Xu, Liping Yang, Jia Xu, Zhigang Liu, Zhenyu Liu
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Publication number: 20160337025Abstract: The present invention is applicable to the field of mobile terminals and provides an antenna switching system and method. The antenna switching system includes a radio-frequency transceiver circuit, a primary antenna, and a parasitic antenna, where the primary antenna is connected to the radio-frequency transceiver circuit, and further includes a switch circuit, configured to connect, when the parasitic antenna is used to receive or send a radio-frequency signal, the parasitic antenna and the radio-frequency transceiver circuit. If the parasitic antenna is grounded, the parasitic antenna may be configured to spread a spectrum. In addition, when carrier aggregation is needed, the parasitic antenna is connected to the radio-frequency transceiver circuit, so as to become an independent receive or transmit antenna.Type: ApplicationFiled: July 29, 2016Publication date: November 17, 2016Inventors: Qiuliang Xu, Liping Yang, Changfeng Zhang, Zhijun Chen