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公开(公告)号：US12120667B2
公开(公告)日：2024-10-15
申请号：US17737526
申请日：2022-05-05
发明人： Xianda Liu , Kunpeng Liu , Liuliu Ji
IPC分类号： H04W72/1263 , H04L5/00 , H04W16/28 , H04W72/0446 , H04W72/0453
CPC分类号： H04W72/1263 , H04L5/0051 , H04W16/28 , H04W72/0446 , H04W72/0453
摘要： This application provides a reference signal transmission method and an apparatus, used in a multipoint coordination transmission scenario. In one example method, a frequency domain resource that carries a target reference signal in a frequency domain resource or a time domain resource that is associated with each QCL assumption may be separately determined, and then the target reference signal carried on the frequency domain resource that is associated with the QCL assumption is separately received by using the corresponding QCL assumption.
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公开(公告)号：US11909485B2
公开(公告)日：2024-02-20
申请号：US17964723
申请日：2022-10-12
发明人： Xianda Liu , Kunpeng Liu , Zukang Shen , Yan Cheng
CPC分类号： H04B7/0639 , H04B7/0478 , H04B7/0486 , H04L27/2607 , H04L5/0007
摘要： The present disclosure describes methods, device, system that provide a codebook indication operation. In one example, a codebook indication method includes: receiving by a terminal device, a transmission parameter indication information indicating an index of one codebook subset configuration of three codebook subset configurations in the terminal device from a base station, wherein the three codebook subset configurations in the terminal device are related to fully coherent, partial coherent, and incoherent respectively, and the codebook subset configuration related to fully coherent includes M indexes, the codebook subset configuration related to partial coherent includes N indexes, and the codebook subset configuration related to incoherent includes K indexes, wherein M is an integer larger than N, and N is larger than K; and determining a transmission layer and precoding matrix associated with the index according to the transmission parameter indication information.
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公开(公告)号：US11438875B2
公开(公告)日：2022-09-06
申请号：US16716244
申请日：2019-12-16
发明人： Xianda Liu , Kunpeng Liu
IPC分类号： H04W72/02 , H04B7/0456 , H04W72/04 , H04W80/08 , H04L5/00
摘要： Embodiments of the present invention disclose a signaling receiving method and a related device. The method includes: determining, by a terminal based on resource unit allocation signaling, locations of S resource units in a system bandwidth that are scheduled to the terminal; grouping, by the terminal, the S resource units into K resource groups, where a quantity of resource units that separate any resource unit in a first resource group from any resource unit in a second resource group in the system bandwidth is not less than a threshold M; and precoding, by the terminal by using N precoding matrices, data sent in N resource unit sets, where resource units included in each of the N resource unit sets are determined based on the K resource groups, and S, K, and M are all positive integers.
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公开(公告)号：US12075275B2
公开(公告)日：2024-08-27
申请号：US17670139
申请日：2022-02-11
发明人： Xianda Liu , Kunpeng Liu , Leiming Zhang
IPC分类号： H04W24/10 , H04B7/0456
CPC分类号： H04W24/10 , H04B7/0456
摘要： This application relates to a communications method and apparatus, and a device. The communications method includes: A terminal device determines a first codeword set, where the first codeword set includes a first codeword, the first codeword is a 4×1 matrix, and each element in the matrix is a non-zero element.
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公开(公告)号：US12069645B2
公开(公告)日：2024-08-20
申请号：US17672383
申请日：2022-02-15
发明人： Xianda Liu , Kunpeng Liu
IPC分类号： H04W72/1263 , H04L1/08 , H04L5/00 , H04W72/0446
CPC分类号： H04W72/1263 , H04L1/08 , H04L5/0051 , H04W72/0446
摘要： This disclosure provides example wireless communication methods and communication apparatuses. One example method includes that a network device sends indication information of m first symbol groups used for repeated transmission of a first transport block (TB) to a terminal. The terminal and the network device determine, according to a same rule, a quasi co-location (QCL) assumption corresponding to each of second symbol groups actually used when the first TB is sent or received.
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公开(公告)号：US11233549B2
公开(公告)日：2022-01-25
申请号：US16711645
申请日：2019-12-12
发明人： Xianda Liu , Kunpeng Liu
IPC分类号： H04B7/0456 , H04L5/00 , H04W72/04 , H04W72/12
摘要： A terminal device may receive precoding indicator information, where the precoding indicator information includes K first indicators and one second indicator. The terminal device determines K first precoding matrices based on the K first indicators, and determines a second precoding matrix based on the second indicator, where K is a positive integer. The terminal device precodes, by using the K first precoding matrices, data sent in K first frequency bands, to obtain precoded first data, and precodes, by using the second precoding matrix, data sent in a second frequency band, to obtain precoded second data. The K first frequency bands are located in some frequency bands in a physical uplink shared channel (PUSCH) scheduling frequency band. The second frequency band is a frequency band in the PUSCH scheduling frequency band other than the K first frequency bands.
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公开(公告)号：US11139936B2
公开(公告)日：2021-10-05
申请号：US16673111
申请日：2019-11-04
发明人： Xianda Liu , Kunpeng Liu , Ruiqi Zhang , Xueru Li
IPC分类号： H04W4/00 , H04L5/00 , H04B7/0456 , H04W72/04 , H04W72/12
摘要： This application provides a data transmission method, terminal device, and network device. The method includes: sending, by a terminal device, at least one precoded reference signal on at least one reference signal resource corresponding to a first PRG, where different precoding matrixes are used for different reference signals, and the first PRG is a PRG used to transmit a reference signal; receiving, by the terminal device, resource indication information, where the resource indication information indicates a reference signal resource that is corresponding to a second PRG and that is in the at least one reference signal resource, and the second PRG is a PRG used to transmit a physical uplink shared channel (PUSCH); and sending, by the terminal device, a precoded PUSCH on the second PRG based on the resource indication information, where a precoding matrix used for the PUSCH is a precoding matrix used for a reference signal sent on the reference signal resource corresponding to the second PRG. In this way, a precoding matrix used to transmit the PUSCH on the second PRG can be effectively selected.
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公开(公告)号：US12068992B2
公开(公告)日：2024-08-20
申请号：US18330922
申请日：2023-06-07
发明人： Xianda Liu , Kunpeng Liu
IPC分类号： H04L5/00 , H04B7/0413
CPC分类号： H04L5/0048 , H04B7/0413
摘要： Example demodulation reference signal (DMRS) A DMRS port indication methods and apparatus are provided, to meet NC JT transmission. In one example method, a network device determines DMRS port indication information and quasi-co-location (QCL) indication information, and sends the DMRS port indication information and the QCL indication information. The DMRS port indication information is used to indicate a DMRS port set, the DMRS port set is one of a plurality of DMRS port sets.
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公开(公告)号：US11496198B2
公开(公告)日：2022-11-08
申请号：US16248177
申请日：2019-01-15
发明人： Xianda Liu , Kunpeng Liu , Zukang Shen , Yan Cheng
摘要： The present disclosure describes methods, device, system that provide a codebook indication operation. In one example, a codebook indication method includes: receiving by a terminal device, a transmission parameter indication information indicating an index of one codebook subset configuration of three codebook subset configurations in the terminal device from a base station, wherein the three codebook subset configurations in the terminal device are related to fully coherent, partial coherent, and incoherent respectively, and the codebook subset configuration related to fully coherent includes M indexes, the codebook subset configuration related to partial coherent includes N indexes, and the codebook subset configuration related to incoherent includes K indexes, wherein M is an integer larger than N, and N is larger than K; and determining a transmission layer and precoding matrix associated with the index according to the transmission parameter indication information.
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公开(公告)号：US11290310B2
公开(公告)日：2022-03-29
申请号：US17362065
申请日：2021-06-29
发明人： Bingyu Qu , Xianda Liu , Mingxin Gong , Kunpeng Liu
摘要： The present disclosure relates to signal processing methods and apparatus. One example method includes determining a first sequence {x(n)} based on a preset condition and a sequence {s(n)}, generating a reference signal of a first signal by using the first sequence, and sending the reference signal on a first frequency-domain resource. The preset condition is xn=y(n+M)mod K, where y n = A · e j × π × s n 8 , M∈{0, 1, 2, . . . , 5}, a length of the first sequence is K=6, n=0, 1, . . . , K−1, A is a non-zero complex number, and j=√{square root over (−1)}. The first signal is a signal modulated by using π/2 binary phase shift keying (BPSK). The first frequency-domain resource comprises K subcarriers each having a subcarrier number of k, k=u+L*n+delta, L is an integer greater than or equal to 2, delta∈{0, 1, . . . , L−1}, u is an integer, and subcarrier numbers of the K subcarriers are numbered in ascending or descending order of frequencies.
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