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1.发明公开公开(公告)号：US20240072858A1
公开(公告)日：2024-02-29
申请号：US18502785
申请日：2023-11-06
发明人： Xiaohan WANG , Huangping JIN , Xiaoyan BI
IPC分类号： H04B7/0456 , H04B7/06 , H04L5/00
CPC分类号： H04B7/0469 , H04B7/0626 , H04L5/0003
摘要： This application provides a method for indicating a precoding vector, a method for determining a precoding vector, and a communications apparatus. The method includes: generating and sending, by a terminal device, first indication information; and determining, by a network device, a precoding vector of one or more frequency domain units based on the first indication information. The first indication information is used to indicate L1 beam vectors in a beam vector set, K1 frequency domain vectors in a frequency domain vector set, and T1 space-frequency component matrices. A weighted sum of the T1 space-frequency component matrices is used to determine a precoding vector of each frequency domain unit. The T1 space-frequency component matrices are selected from M1 space-frequency component matrices corresponding to the L1 beam vectors and the K1 frequency domain vectors, each space-frequency component matrix is uniquely determined by one beam vector and one frequency domain vector.
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公开(公告)号：US20230261715A1
公开(公告)日：2023-08-17
申请号：US18304005
申请日：2023-04-20
发明人： Haicun HANG , Xiaohan WANG , Huangping JIN
IPC分类号： H04B7/06
CPC分类号： H04B7/0626
摘要： This application provides an information transmission method, an apparatus, and a device, which are applicable to the communication field, and are used to feed back information obtained based on channel information of different network devices, so as to improve performance gains and reduce performance loss. The method includes: The terminal device obtains at least one piece of channel information including large-scale information and small-scale information; performs normalization processing on the channel information to obtain at least one piece of first information and at least one piece of second information, where the first information is small-scale information obtained through normalization processing, and the second information is large-scale information obtained through normalization processing; and then sends channel state information including R pieces of first information obtained through quantization processing or including R pieces of first information obtained through quantization processing and R pieces of second information obtained through quantization processing.
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公开(公告)号：US20230044464A1
公开(公告)日：2023-02-09
申请号：US17968218
申请日：2022-10-18
发明人： Huangping JIN , Ruiqi ZHANG
摘要： Embodiments of this application disclose terminal device capability transmission methods, apparatuses, and systems. In an implementation, a terminal device transmits capability information to a network device, the capability information indicates a maximum quantity of ports of reference signals for channel state information (CSI) measurement supported by a terminal device in a time-domain unit, wherein the time-domain unit is one slot, and the capability information is determined based on a capability of the terminal device.
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4.发明申请公开(公告)号：US20230013510A1
公开(公告)日：2023-01-19
申请号：US17941430
申请日：2022-09-09
发明人： Shibin GE , Zhimeng ZHONG , Xiaohan WANG , Huangping JIN , Li FAN , Xiaoyan BI , Yiling YUAN
IPC分类号： H04W72/04
摘要： A method for indicating channel state information CSI measurement and a communication apparatus. A network device indicates, to a terminal device by using first indication information, one or more frequency domain units in a downlink reference signal resource that are used by the terminal device to obtain CSI. The terminal device determines, based on the first indication information, which frequency domain units in the downlink reference signal resource are used to obtain the CSI, and perform measurement in the frequency domain unit to obtain the CSI. The network device flexibly configures CSI measurement based on a system status, to control obtaining of the CSI. This helps the terminal device obtain the CSI more pertinently based on the indication in different cases.
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公开(公告)号：US20220217567A1
公开(公告)日：2022-07-07
申请号：US17706385
申请日：2022-03-28
发明人： Xiang REN , Huangping JIN , Shibin GE , Xiaohan WANG , Xiaoyan BI
摘要： The disclosure provides channel measurement methods and communications apparatuses. One example method includes a terminal device that generates first indication information, and sends the first indication information to a network device. The first indication information indicates one or more component characteristics of a complete time-varying characteristic of a channel and a weighting coefficient of each component characteristic. The complete time-varying characteristic of the channel corresponds to a local time-varying characteristic of the channel. The local time-varying characteristic may be determined by the terminal device based on reference signals received for a plurality of times, and the complete time-varying characteristic may be determined based on the local time-varying characteristic.
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公开(公告)号：US20210337565A1
公开(公告)日：2021-10-28
申请号：US17370438
申请日：2021-07-08
发明人： Xiaohan WANG , Huangping JIN , Xiaoyan BI
摘要： This application provides a parameter configuration method and a communications apparatus. The method includes: receiving, by a terminal device, an indication of a first mapping relationship from a network device, where the first mapping relationship is a mapping relationship in a preconfigured first mapping relationship group, and the first mapping relationship group includes at least one mapping relationship, to indicate at least one correspondence between a reporting quantity of spatial domain vectors and a reporting quantity of frequency domain vectors; and determining, by the terminal device, the reporting quantity of spatial domain vectors and the reporting quantity of frequency domain vectors based on the first mapping relationship.
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公开(公告)号：US20210091834A1
公开(公告)日：2021-03-25
申请号：US17110764
申请日：2020-12-03
发明人： Ye WU , Hongzhe SHI , Huang HUANG , Huangping JIN
IPC分类号： H04B7/06 , H04W72/04 , H04L5/00 , H04B17/318
摘要： The application provides a beam training method and a communications apparatus. The method includes: generating, by a terminal device, capability indication information, where the capability indication information is used to indicate that the terminal device can support simultaneous beam training in a maximum of N frequency bands, and N is an integer greater than or equal to 1; and sending, by the terminal device, the capability indication information. In this way, the network device may select a plurality of frequency bands at a time based on a capability of the terminal device to simultaneously perform beam training. Therefore, in an embodiments of this application, when the quantity N, of frequency bands for simultaneous training, supported by the terminal device is greater than 1, beam training may be simultaneously performed between the network device and the terminal device in a plurality of frequency bands.
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公开(公告)号：US20210058119A1
公开(公告)日：2021-02-25
申请号：US17094252
申请日：2020-11-10
发明人： Xiaohan WANG , Huangping JIN , Xiaoyan BI
IPC分类号： H04B7/0456 , H04L25/02
摘要： This application discloses a channel estimation method and apparatus, and relates to the field of communications technologies, to help reduce indication overheads. The method may include: generating and sending indication information. The indication information is used to indicate K N-dimensional spatial-domain component vectors, L M-dimensional frequency-domain component vectors, and a weight matrix, to indicate to construct an M×N-dimensional spatial-frequency matrix, or an M×N or N×M spatial-frequency matrix.
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公开(公告)号：US20200153488A1
公开(公告)日：2020-05-14
申请号：US16746850
申请日：2020-01-18
发明人： Ye WU , Huangping JIN , Wei HAN , Xiaoyan BI
IPC分类号： H04B7/0456 , H04B7/0417 , H04B7/10
摘要： This application provides a data transmission method and apparatus, and a system. The method includes: receiving, by a terminal device, a first group of precoded reference signals and a second group of precoded reference signals, where the first group of precoded reference signals includes at least one precoded reference signal, and the second group of precoded reference signals includes at least one precoded reference signal; and feeding back, by the terminal device, at least one piece of first indication information based on a transmission scheme that channel state information CSI feedback is based on, where the at least one piece of first indication information is used to determine a plurality of precoding vectors, at least one of the plurality of precoding vectors is a precoding vector corresponding to the at least one precoded reference signal in the first group of precoded reference signals, and at least one of the plurality of precoding vectors is a precoding vector corresponding to the at least one precoded reference signal in the second group of precoded reference signals.
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10.发明申请公开(公告)号：US20190326962A1
公开(公告)日：2019-10-24
申请号：US16459581
申请日：2019-07-01
发明人： Huangping JIN , Wei HAN , Xiaoyan BI , Peng SHANG
IPC分类号： H04B7/0456 , H04B7/06
摘要： Embodiments of the present invention provide a precoding vector indicating method, a precoding vector determining method, a receive end device, and a transmit end device. The precoding vector indicating method includes: determining a plurality of component vectors of an ideal precoding vector and a weight of each component vector based on at least one basic codebook, where each component vector is a column vector of one of the at least one basic codebook; and sending a precoding vector indicator, where the precoding vector indicator is used to indicate the plurality of component vectors and the weight of each component vector. The embodiments of the present invention further provide a precoding vector determining method, a receive end device, and a transmit end device. In the technical solutions provided in the embodiments of the present invention, a basic codebook is constructed based on a plurality of parameters, so that the basic codebook can be used to more accurately describe a channel environment. In this way, a precoding vector determined based on the basic codebook provided in the embodiments of the present invention can more accurately match a channel, thereby improving a precoding effect.
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