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公开(公告)号：US11910214B2
公开(公告)日：2024-02-20
申请号：US16440733
申请日：2019-06-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei Han , Lu Wu , Huangping Jin
Abstract: Embodiments of the present disclosure include channel state information processing methods and apparatuses. One example method includes configuring, by a network device, at least one piece of CSI reporting configuration information and resource configuration information corresponding to the CSI reporting configuration information, where one piece of the CSI reporting configuration information corresponds to at least two pieces of resource configuration information, wherein one resource configuration information is used for interference measurement and includes a CSI-RS resource set, wherein one resource configuration information is used for channel measurement and includes a NZP CSI-RS resource, and wherein one CSI-RS resource set corresponds to at least one CSI report. The at least one piece of CSI reporting configuration information and the resource configuration information is sent to a terminal device.
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公开(公告)号：US11381436B2
公开(公告)日：2022-07-05
申请号：US16674903
申请日：2019-11-05
Applicant: Huawei Technologies Co., Ltd.
Abstract: Embodiments of the present disclosure disclose a reference signal pattern transmission method and an apparatus therefor. The method includes: determining, a quantity N of symbols occupied by a CSI-RS resource, and N={1, 2, 4}; obtaining, a pattern of the CSI-RS resource; and sending, configuration information to a terminal device, N=1, the pattern of the CSI-RS resource occupies one RE in time domain, and occupies at least four consecutive REs in frequency domain; or N=2, the pattern of the CSI-RS resource occupies two consecutive REs in time domain, and occupies at least two consecutive REs in frequency domain; or N=4, the pattern of the CSI-RS resource occupies four consecutive REs in time domain, and occupies at least two consecutive REs in frequency domain. According to the embodiments of the present disclosure, a design of a pattern of a channel state information-reference signal resource in a 5G system can be implemented.
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公开(公告)号：US10972159B2
公开(公告)日：2021-04-06
申请号：US16401824
申请日：2019-05-02
Applicant: Huawei Technologies Co., Ltd.
IPC: H04B7/0456 , H04B7/06 , H04L12/24 , H04L5/00 , H04W72/04 , H04B7/0413
Abstract: Embodiments of the present disclosure disclose a precoding configuration method, device, and system. The precoding configuration method includes: generating precoding configuration information, where the precoding configuration information is used to configure a width of a frequency band for same precoding; and sending the precoding configuration information. The embodiments of the present disclosure further provide a transmit end device, a receive end device, and the precoding configuration system. In the precoding configuration method provided in the embodiments of the present disclosure, the precoding configuration information is generated and sent, so that a receive end can determine, based on the precoding configuration information, the width of the frequency band for same precoding. In the prior art, the width of the frequency band for same precoding is determined based on only system bandwidth, while the width of the frequency band for same precoding can be flexibly determined in the technical solutions provided in the embodiments of the present disclosure, so that requirements of a wireless communications system can be met in diversified scenarios, and system performance can be effectively optimized in different scenarios.
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4.发明申请公开(公告)号：US20200076649A1
公开(公告)日：2020-03-05
申请号：US16676906
申请日：2019-11-07
Applicant: Huawei Technologies Co., Ltd.
Abstract: Embodiments of this application disclose a method and apparatus for sending a demodulation reference signal, and a demodulation method and apparatus, and relate to the field of communications technologies. The method for sending a demodulation reference signal may include: generating a demodulation reference signal, where a sequence length of the demodulation reference signal is related to an attribute of the demodulation reference signal; and sending the demodulation reference signal.
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公开(公告)号：US11784770B2
公开(公告)日：2023-10-10
申请号：US17833478
申请日：2022-06-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lu Wu , Yong Liu , Xiaoyan Bi
CPC classification number: H04L5/0048 , H04L5/005 , H04L5/0007 , H04L5/0044 , H04L5/0051 , H04L5/0023
Abstract: Embodiments of the present invention provide a method and an apparatus for sending a reference signal, and a method and an apparatus for obtaining a reference signal. The method for sending a reference signal includes: determining, based on a resource that is allocated to a reference signal in a basic pattern corresponding to the reference signal and a resource that is allocated to at least one basic pattern in a physical layer transmission unit, a resource occupied by the reference signal in the physical layer transmission unit; and sending the reference signal through the determined resource. It can be learned that, according to the technical solutions provided in the embodiments of the present invention, arrangement of the reference signal in the physical layer transmission unit can be flexibly set.
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Patent Agency Ranking
公开(公告)号：US11165606B2
公开(公告)日：2021-11-02
申请号：US16676906
申请日：2019-11-07
Applicant: Huawei Technologies Co., Ltd.
Abstract: Embodiments of this application disclose a method and apparatus for sending a demodulation reference signal, and a demodulation method and apparatus, and relate to the field of communications technologies. The method for sending a demodulation reference signal may include: generating a demodulation reference signal, where a sequence length of the demodulation reference signal is related to an attribute of the demodulation reference signal; and sending the demodulation reference signal.
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公开(公告)号：US11012128B2
公开(公告)日：2021-05-18
申请号：US16266635
申请日：2019-02-04
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lu Wu , Wei Han , Hongzhe Shi
IPC: H04B7/0456 , H04B7/06 , H04B7/0408 , H04L5/00
Abstract: Embodiments of this application disclose a precoding matrix determining method and apparatus, to determine a stage-1 precoding matrix based on indication information that is of a spatial correlation matrix and that is fed back by a terminal, thereby implementing three-dimensional precoding based on a channel state and increasing a channel capacity. The method includes: sending, by a base station, a plurality of groups of first reference signals, where the plurality of groups of first reference signals are in a one-to-one correspondence with a plurality of dimensions of an antenna array, and each of the plurality of groups of first reference signals is used by a terminal to estimate spatial correlation matrix information in a corresponding dimension; receiving the spatial correlation matrix information fed back by the terminal based on the plurality of groups of first reference signals; and determining a stage-1 precoding matrix based on the spatial correlation matrix information.
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公开(公告)号：US11005625B2
公开(公告)日：2021-05-11
申请号：US16526636
申请日：2019-07-30
Applicant: Huawei Technologies Co., Ltd.
Abstract: This application discloses an indication method and apparatus, to support a requirement of a complex and fickle scenario. The method includes: generating and sending an arrangement indication used to indicate an arrangement manner of a reference signal, where the reference signal occupies at least one group of time frequency resources, and the arrangement manner is frequency division, time division, frequency division+code division, or time division+code division; in the frequency division manner, each group of time frequency resources occupy a symbol in time domain and at least one contiguous subcarrier in frequency domain; in the time division manner, each group of time frequency resources occupy at least one contiguous symbol in time domain and a subcarrier in frequency domain.
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公开(公告)号：US10680697B2
公开(公告)日：2020-06-09
申请号：US16185383
申请日：2018-11-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lu Wu , Xiaoyan Bi , Peng Shang
Abstract: The present disclosure discloses a channel state information feedback method, a base station, a terminal device, and a system. The method includes: receiving, by a terminal device, a reference signal sent by a base station; determining, by the terminal device, channel state information based on the reference signal; and sending, by the terminal device, the channel state information to the base station, so that the base station determines a precoding matrix F. The precoding matrix F=C1C2W, where C1 is a first-level precoding matrix, C2 is a second-level precoding matrix, and W is a third-level precoding matrix. Channel state information corresponding to C1 includes beam information, channel state information corresponding to C2 includes long-term wideband channel information, and channel state information corresponding to W includes instantaneous channel information. This patent application can reduce total pilot and CSI feedback overheads, thereby improving a system throughput.
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公开(公告)号：US20190150159A1
公开(公告)日：2019-05-16
申请号：US16242941
申请日：2019-01-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hongzhe Shi , Yong Liu , Xiaoyan Bi , Lu Wu
IPC: H04W72/08 , H04L5/00 , H04B7/0452 , H04W72/04
Abstract: A method for indicating downlink control signaling and a related device are provided. The method includes: generating, by an access network device, indication information, and sending the indication information to a first terminal device by using downlink control signaling, where the indication information is used by the first terminal device to obtain information about an antenna port that is used by a second terminal device and that is corresponding to a demodulation reference signal, and the second terminal device is a terminal device currently performing spatial multiplexing together with the first terminal device. This implements interference detection performed by the first terminal device on a plurality of users.
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