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公开(公告)号：US20220416866A1
公开(公告)日：2022-12-29
申请号：US17887209
申请日：2022-08-12
发明人： Shibin GE , Huangping JIN , Xiaohan WANG , Yiling YUAN , Xiaoyan BI
IPC分类号： H04B7/06 , H04B7/0456
摘要： A channel state information feedback method includes: a terminal receives first indication information from a network device, and the terminal sends channel state information to the network device. The first indication information is used to indicate a type of a right multiplication matrix in a first codebook, and the first codebook satisfies a formula (I). W is the first codebook, W1 is a port selection matrix, (II) is a linear superposition coefficient matrix, Wf is the right multiplication matrix, and (III) is a conjugate transpose of Wf, and is used by the terminal to determine the channel state information based on the first codebook. According to the method, when there are a plurality of codebooks, the codebook used by the terminal to obtain the CSI can be clearly indicated.
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公开(公告)号：US20220224568A1
公开(公告)日：2022-07-14
申请号：US17707323
申请日：2022-03-29
发明人： Huangping JIN , Shibin GE , Zhimeng ZHONG , Yong LIU , Xiaoyan BI , Li FAN
摘要： Example channel measurement methods and a communication apparatus are described. One example method include receiving a precoded reference signal and indication information by a terminal device, where the indication information is used to indicate a relative delay between a first delay and a second delay, and the first delay and the second delay are determined through uplink channel measurement. The terminal device performs channel measurement based on the precoded reference signal and the indication information.
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公开(公告)号：US20220021425A1
公开(公告)日：2022-01-20
申请号：US17486478
申请日：2021-09-27
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：US20220014241A1
公开(公告)日：2022-01-13
申请号：US17483419
申请日：2021-09-23
发明人： Xiaohan WANG , Huangping JIN , Xiang REN , Wei HAN , Xiaoyan BI
IPC分类号： H04B7/0456 , H04L25/02
摘要： Embodiments of this application disclose a channel estimation method and apparatus, and relate to the field of communications technologies, to help reduce indication overheads. The method may include: generating and sending indication information, where the indication information is used to indicate M N-dimensional precoding vectors, each precoding vector is applied to one of M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, and the space-frequency matrix is generated by performing weighted combination on a plurality of space-frequency component matrices, where the space-frequency matrix is an M×N-dimensional space-frequency vector or an X×Y space-frequency matrix, X and Y are one and the other of M and N, M≥1, N≥2, and both M and N are integers.
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公开(公告)号：US20210336665A1
公开(公告)日：2021-10-28
申请号：US17369513
申请日：2021-07-07
发明人： Huangping JIN , Xiaohan WANG , Xiaoyan BI
IPC分类号： H04B7/0456
摘要： The present disclosure relates to precoding vector indicating and determining methods and communications apparatus. In one example method, a terminal device generates first indication information, and sends the first indication information to a network device. The first indication information is used to indicate one or more frequency domain vectors and one or more weighting coefficients, where the one or more frequency domain vectors include a frequency domain vector reported for each of R frequency domain unit groups, the one or more weighting coefficients include a weighting coefficient reported for each of the R frequency domain unit groups, and a frequency domain vector and a weighting coefficient that are reported for an rth frequency domain unit group in the R frequency domain unit groups are used to construct a precoding vector corresponding to one or more frequency domain units in the rth frequency domain unit group.
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公开(公告)号：US20210234583A1
公开(公告)日：2021-07-29
申请号：US17230523
申请日：2021-04-14
发明人： Xiaohan WANG , Huangping JIN , Xiaoyan BI
IPC分类号： H04B7/0456 , H04L5/00 , H04B7/06
摘要： This disclosure discloses methods and apparatuses for signal processing. In an implementation, a method comprises: generating first indication information, wherein the first indication information indicates L1 space domain vectors in a space domain vector set, K1 frequency domain vectors in a frequency domain vector set, and T1 space-frequency component matrices, wherein a precoding vector of one or more frequency domain units is determined by a weighted sum of the T1 space-frequency component matrices, wherein the L1 space domain vectors and the K1 frequency domain vectors correspond to M1 space-frequency component matrices that comprise the T1 space-frequency component matrices, wherein each of the M1 space-frequency component matrices is uniquely determined by a different combination of one of the L1 space domain vectors and one of the K1 frequency domain vectors; and sending the first indication information.
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47.发明申请公开(公告)号：US20200083940A1
公开(公告)日：2020-03-12
申请号：US16684219
申请日：2019-11-14
发明人： Shibin GE , Wei HAN , Xiaoyan BI , Hongzhe SHI , Ye WU , Huangping JIN
IPC分类号： H04B7/0456 , H04B7/06
摘要： This application provides a technical solution for rank indication, and especially when a CQI number is not configured or a CQI number is 1, a network device configures a rank indication restriction parameter as that at least one of ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported by the terminal device; or even if the network device does not perform the foregoing configuration, and none of the ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported, the terminal device may select at least one rank for RI reporting, so as to resolve a problem that a system cannot work. In addition, according to embodiments of this application, bit overheads required for RI reporting may further be reduced.
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公开(公告)号：US20190334592A1
公开(公告)日：2019-10-31
申请号：US16506995
申请日：2019-07-09
发明人： Wei HAN , Lu WU , Huangping JIN
IPC分类号： H04B7/0456 , H04B7/06
摘要： Embodiments of the present application provide a parameter indication method and parameter determining method, a receive device, and a transmit device. The parameter indication method includes: generating indication information for each of a plurality of antenna panels, where the indication information is used to indicate an adjustment parameter of the antenna panel, and the adjustment parameter includes at least one of an amplitude adjustment parameter and a phase adjustment parameter; and sending the indication information. The embodiments of the present application further provide a parameter determining method, a receive device, and a transmit device. In the technical solutions provided in the embodiments of the present application, adjustment parameters of the plurality of antenna panels are fed back to adjust the plurality of antenna panels, so that a precoding vector constructed based on the plurality of antenna panels is more accurate.
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49.发明申请公开(公告)号：US20190334588A1
公开(公告)日：2019-10-31
申请号：US16504354
申请日：2019-07-08
发明人： Wei HAN , Huangping JIN , Xiaoyan BI
IPC分类号： H04B7/0417 , H04B7/06
摘要： Embodiments of the present invention provide a channel information feedback method, a channel information determining method, a receive end device, and a transmit end device. The channel information feedback method includes: generating at least one piece of description information for each of a plurality of subbands included in a wideband, where each piece of description information is used to describe a description vector of a channel matrix corresponding to the subband, the description information includes at least one of a vector parameter and a weighting parameter; and sending the at least one piece of description information. The embodiments of the present invention further provide a channel information determining method, a receive end device, and a transmit end device. A precoding effect can be improved when precoding is performed based on the description vector fed back in the technical solutions provided in the embodiments of the present invention.
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公开(公告)号：US20190268795A1
公开(公告)日：2019-08-29
申请号：US16410180
申请日：2019-05-13
发明人： Ye WU , Huangping JIN , Xiaobo CHEN , Xiaoyan BI
摘要： Embodiments of the present disclosure provide a channel measurement method and user equipment. In one example method, a first transmission control information is received. A semi-persistent channel measurement is started when the first transmission control information meets a first preset condition, where the first preset condition includes at least one of the following conditions: the first transmission control information is associated with a radio network temporary identifier RNTI of a first preset type, and a value of a first group of information in the first transmission control information meets a first preset rule.
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