Patents by Inventor Zhengxuan LIU
Zhengxuan LIU 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: 20240187059Abstract: The embodiments of the present application provide an antenna port indication method, a terminal and a network-side device. Said method includes: transmitting a port indication message to a network-side device; and the port indication message carries at least any one of the following port indication information: bitmap information or combination coefficient information for indicating ports selected by a terminal; a first parameter for indicating the ports selected by the terminal; or a second parameter for indicating ports selected by the terminal in a first polarization direction and a third parameter for indicating the ports selected by the terminal in a second polarization direction. The embodiments of the present application achieve the indication of ports selected by a terminal.Type: ApplicationFiled: December 15, 2020Publication date: June 6, 2024Inventors: Zhengxuan LIU, Qiubin GAO
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Publication number: 20240179724Abstract: An information reporting method, a network side configuration method, a device, an apparatus and a storage medium are provided. The information reporting method includes: estimating, by a terminal, downlink channel information; determining, by the terminal, frequency-domain basis vector information in accordance with the downlink channel information; and transmitting, by the terminal, the frequency-domain basis vector information to a network device.Type: ApplicationFiled: March 17, 2022Publication date: May 30, 2024Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Zhengxuan LIU, Qiubin GAO
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Publication number: 20240171345Abstract: A port indication information reporting method and terminal are provided. The port indication information reporting method for the terminal includes: receiving a CSI-RS resource issued by a network side device, the CSI-RS resource including a plurality of CSI-RS ports; selecting a plurality of target CSI-RS ports in the plurality of CSI-RS ports; and reporting port selection indication information to the network side device, the port selection indication information being used to indicate a port identifier of the target CSI-RS port. According to the present application, it is able for the network side device to determine the CSI-RS ports selected by the terminal in accordance with the port indication information that is reported.Type: ApplicationFiled: March 15, 2022Publication date: May 23, 2024Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Zhengxuan LIU, Qiubin GAO
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Publication number: 20240171344Abstract: Disclosed in the present invention are an enhanced channel state information reference signal (CSI-RS) transmission method, a feedback information sending method and apparatus, and a device and a medium, which are used for solving the problems of the sending power of a network side and the feedback overhead of a terminal side being relatively high when the number of beams to be sent is less than the total number of configured CSI-RS antenna ports. In the embodiments of the present disclosure, when the number P of beams to be sent is less than the total number Ptot of configured CSI-RS antenna ports, a network side can select, from the configured Ptot CSI-RS antenna ports, some CSI-RS antenna ports for sending a beamforming CSI-RS to a terminal side.Type: ApplicationFiled: March 8, 2022Publication date: May 23, 2024Inventors: Zhengxuan LIU, Qiubin GAO, Xin SU
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Publication number: 20240146364Abstract: Disclosed are a channel reciprocity-based precoding matrix configuration method and apparatus. The method includes in downlink transmission, a network side separately sends, on each antenna port associated with each transmission layer, a CSI-RS subjected to beamforming to a terminal by using beams calculated according to angle information and delay information determined on the basis of uplink channel state information, and determines a precoding matrix for downlink transmission of the terminal according to beams sent on K0 antenna ports selected by the terminal on the basis of the CSI-RS, and a beam combination coefficient set.Type: ApplicationFiled: January 4, 2024Publication date: May 2, 2024Inventors: Zhengxuan LIU, Qiubin GAO, Hui LI
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Patent number: 11936455Abstract: A channel state information (CSI) feedback method and device are disclosed. In the method, a terminal determines an orthogonal beam group and pre-coding matrix information according to codebook parameter information, where a same beam in the orthogonal beam group has same specified coefficients in first and second polarization directions, each of the specified coefficients comprises an amplitude coefficient and/or a phase coefficient; the pre-coding matrix information includes the specified coefficients and adjustment factors, and the adjustment factors are used together with the specified coefficients to determine linear combination coefficients except the specified coefficients in a linear combination coefficient set; and the pre-coding matrix information is sent to a network-side device.Type: GrantFiled: February 26, 2020Date of Patent: March 19, 2024Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Hui Li, Qiubin Gao, Zhengxuan Liu, Runhua Chen
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Patent number: 11901979Abstract: Disclosed are a channel reciprocity-based precoding matrix configuration method and apparatus. The method includes: in downlink transmission, a network side separately sends, on each antenna port associated with each transmission layer, a CSI-RS subjected to beamforming to a terminal by using beams calculated according to angle information and delay information determined on the basis of uplink channel state information, and determines a precoding matrix for downlink transmission of the terminal according to beams sent on K0 antenna ports selected by the terminal on the basis of the CSI-RS, and a beam combination coefficient set.Type: GrantFiled: December 7, 2020Date of Patent: February 13, 2024Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Zhengxuan Liu, Qiubin Gao, Hui Li
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Publication number: 20230198711Abstract: The present disclosure relates to the technical field of communications, and in particular to a method and apparatus for acquiring uplink channel state information, which are used for acquiring a transmission path with a relatively low delay. The method comprises: a network side device generating SRS resource configuration information on the basis of a preset bandwidth parameter, a frequency domain density parameter and a time domain parameter, and receiving at least one SRS returned by a terminal on the basis of the SRS resource configuration information; and then the network side device measuring, on the basis of the at least one SRS, an uplink channel used by the terminal, and determining corresponding uplink channel state information.Type: ApplicationFiled: March 17, 2021Publication date: June 22, 2023Inventors: Zhengxuan LIU, Qiubin GAO, Hui LI
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Publication number: 20230075037Abstract: Provided are a method and a device for channel state information, terminal, and network side, and a storage medium. The method includes: receiving beamformed CSI-RSs, or the beamformed CSI-RSs and frequency domain basis vector indication information transmitted by a network side by means of antenna ports, where beams used in beamforming are determined based on spatial domain basis vectors or based on the spatial domain basis vectors and frequency domain basis vectors, and the spatial domain basis vectors and the frequency domain basis vectors are determined based on an uplink channel; determining port indication information and a port combination coefficient for data transmission based on the beamformed CSI-RS or the beamformed CSI-RS and the frequency domain basis vector indication information; and feeding back the port indication information and port combination coefficient to the network side for determining precoding of downlink transmission data at the network side.Type: ApplicationFiled: February 9, 2021Publication date: March 9, 2023Inventors: Zhengxuan LIU, Qiubin GAO, Hui LI
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Publication number: 20230009991Abstract: The present application relates to communication technology. Disclosed are a channel reciprocity-based precoding matrix configuration method and apparatus. The method comprises: in downlink transmission, a network side separately sends, on each antenna port associated with each transmission layer, a CSI-RS subjected to beamforming to a terminal by using beams calculated according to angle information and delay information determined on the basis of uplink channel state information, and determines a precoding matrix for downlink transmission of the terminal according to beams sent on K0 antenna ports selected by the terminal on the basis of the CSI-RS, and a beam combination coefficient set.Type: ApplicationFiled: December 7, 2020Publication date: January 12, 2023Inventors: Zhengxuan LIU, Qiubin GAO, Hui LI
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Publication number: 20220182121Abstract: The embodiments of the present application relate to the field of wireless communication technology, and provide a channel state information (CSI) feedback method and device to reduce CSI feedback overhead. In the method, a terminal determines an orthogonal beam group and pre-coding matrix information according to codebook parameter information, wherein specified coefficients of the same beam in the orthogonal beam group in a first polarization direction and a second polarization direction are the same, and the specified coefficients comprise an amplitude coefficient and/or a phase coefficient; the pre-coding matrix information comprises the specified coefficients and an adjustment factor, and the adjustment factor is used together with the specified coefficients to determine a linear combination coefficient other than a specified combination coefficient in a linear combination coefficient set; and the determined pre-coding matrix information is sent to a network-side device.Type: ApplicationFiled: February 26, 2020Publication date: June 9, 2022Inventors: Hui LI, Qiubin GAO, Zhengxuan LIU, Runhua CHEN
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Publication number: 20220149909Abstract: Disclosed are a channel state information reporting method and device, relating to the field of wireless communications and used for solving the problem of no corresponding CSI reporting method being provided at present regarding a Rel-16 codebook structure. The method of the present application includes a terminal determining, according to codebook parameter information, codebook indication information corresponding to a data transmission layer; and the terminal sending channel state information (CSI) including the codebook indication information to a network side device, and the codebook indication information includes a part or all of the following: beam information for determining a precoding matrix orthogonal combination beam, base vector information for determining a precoding matrix compression base vector, and nonzero coefficient indication information for determining a precoding matrix compression coefficient.Type: ApplicationFiled: December 24, 2019Publication date: May 12, 2022Inventors: Zhengxuan LIU, Hui LI, Qiubin GAO
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Publication number: 20220123806Abstract: Disclosed in the present application are methods for sending and receiving channel state information (CSI), a terminal device and a network device, which are used to provide a CSI sending method or receiving method on the basis of a Rel-16 codebook structure. The method for sending CSI comprises: determining a compressed basis vector in a precoding matrix, the compressed basis vector belonging to a set of candidate basis vectors, wherein the compressed basis vector weighted by coefficients of the precoding matrix is used to construct frequency domain characteristics of the precoding matrix; and sending the CSI to a network device, wherein the CSI comprises basis vector indication information, and the basis vector indication information is used to indicate the compressed basis vector.Type: ApplicationFiled: December 24, 2019Publication date: April 21, 2022Inventors: Hui LI, Qiubin GAO, Runhua CHEN, Zhengxuan LIU
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Publication number: 20220116093Abstract: The present disclosure provides a channel state information reporting method, a channel state information receiving method, a terminal, and a network side device. The reporting method includes: receiving codebook parameter information sent by a network side device; determining an enhanced Type II codebook structure according to the codebook parameter information; determining non-zero coefficient indication information according to the enhanced Type II codebook structure, the non-zero coefficient indication information is used to indicate non-zero coefficient related information in a combined coefficient matrix in the enhanced Type II codebook structure; sending the non-zero coefficient indication information to the network side device.Type: ApplicationFiled: January 14, 2020Publication date: April 14, 2022Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Zhengxuan LIU, Hui LI, Qiubin GAO, Runhua CHEN