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公开(公告)号：US20240022306A1
公开(公告)日：2024-01-18
申请号：US18265043
申请日：2021-12-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bichai Wang , Hongli He , Xueru Li
IPC: H04B7/06
CPC classification number: H04B7/0634 , H04B7/0639
Abstract: In accordance with an embodiment, a communication method includes: sending, by a first device, a first reference signal of M (M>2) ports; and receiving, by the first device, first indication information that indicates a first precoding matrix in a target codebook. The first precoding matrix is associated with the first reference signal, and the target codebook includes at least one target precoding matrix that is a partially coherent precoding matrix or a coherent precoding matrix.
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公开(公告)号：US20230413186A1
公开(公告)日：2023-12-21
申请号：US18036070
申请日：2021-11-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bichai Wang , Xueru Li
CPC classification number: H04W52/241 , H04W52/383
Abstract: A first transmitting terminal sends a first channel state information-reference signal CSI-RS in N frequency domain units, where N is a positive integer. The first transmitting terminal detects channel state information CSI sent by K receiving terminals, where the CSI sent by the K receiving terminals is determined based on the first CSI-RS, and K is a positive integer. The first transmitting terminal updates a transmit power of the first transmitting terminal in the N frequency domain units based on the CSI sent by the K receiving terminals. When updated powers of F frequency domain units in the N frequency domain units are greater than a preset threshold, the first transmitting terminal sends user data in at least one of the F frequency domain units, where F is a positive integer less than or equal to N.
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公开(公告)号：US20230319856A1
公开(公告)日：2023-10-05
申请号：US18043244
申请日：2021-07-28
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W72/40
CPC classification number: H04W72/40
Abstract: A method includes a first device that sends a beacon message on a beacon indication resource corresponding to a first resource, where the beacon message indicates that the first resource is used by a device in a first user group and another user group cannot use all or a part of the first resource; or the first device skips sending the beacon message on the beacon indication resource corresponding to the first resource such that a device in the other user group determines that the first resource is not used by the device in the first user group and all or part of the first resource can be temporarily used by the device in the other user group.
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公开(公告)号：US11736170B2
公开(公告)日：2023-08-22
申请号：US17745349
申请日：2022-05-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xueru Li , Ruiqi Zhang
IPC: H04B7/06 , H04L5/00 , H04W24/10 , H04B7/0456
CPC classification number: H04B7/0626 , H04B7/0486 , H04B7/0632 , H04B7/0639 , H04L5/0051 , H04L5/0057 , H04W24/10
Abstract: This application provides a data transmission method, a terminal device, and a network device. The method includes: determining, by a terminal device, reference information; and sending, by the terminal device, second channel state information (CSI) based on a comparison result of the reference information and a status parameter, where the second CSI includes all parameters in first CSI or includes some parameters in the first CSI, the first CSI is CSI that needs to be reported and that is configured by a network device for the terminal device, and the status parameter includes at least one of a transmission parameter of uplink data, a parameter in the first CSI, and a transmission parameter of the first CSI. The data transmission method, the terminal device, and the network device in embodiments of this application help improve transmission performance of CSI.
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公开(公告)号：US11196466B2
公开(公告)日：2021-12-07
申请号：US17214175
申请日：2021-03-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ruiqi Zhang , Xueru Li
IPC: H04B7/02 , H04B7/0456
Abstract: Embodiments of this application provide a precoding matrix indication method, a communications apparatus, and a storage medium. A precoding matrix of each of K frequency-domain units satisfies W=W1×W2, and elements in W2 in the K frequency-domain units are represented by P elements that are relatively few. A terminal device reports third indication information, where the third indication information includes first indication information and the second indication information, and the first indication information and the second indication information are independently encoded. The first indication information is used to indicate the P elements, and the second indication information is used to indicate P. Therefore, the terminal device can adjust a quantity of information bits of the second indication information based on a channel condition change, thereby improving precoding matrix reporting efficiency.
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Patent Agency Ranking
公开(公告)号：US10992405B2
公开(公告)日：2021-04-27
申请号：US16522140
申请日：2019-07-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Embodiments of the present invention disclose a signal receiving method, a signal transmission method, and a device, and relate to the communications field, so as to resolve a problem that a supported quantity of UEs that perform orthogonal code division multiplexing through cyclic shifts is relatively small when a frequency deviation between a center frequency for receiving a signal by UE and a center frequency for transmitting a signal by a base station is greater than a subcarrier spacing used for communication between the base station and the UE. The embodiments of the present invention are used in a signal transmission process.
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37.发明授权公开(公告)号：US10778301B2
公开(公告)日：2020-09-15
申请号：US16696334
申请日：2019-11-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ruiqi Zhang , Xueru Li , Di Zhang
IPC: H04B7/02 , H04B7/0456 , H04B7/06 , H04B7/0413
Abstract: A channel state information sending method, a channel state information receiving method, and a device are disclosed, to reduce resource overheads required when a terminal device feeds back CSI to a network device in a scenario of a high precision codebook-based precoding matrix. The method includes: determining, by a terminal device, a precoding matrix W; sending, by the terminal device, a signal including CSI to a network device; obtaining, by the network device, an RI and indication information based on the signal including the CSI; obtaining, by the network device, a PMI2 based on the RI and the indication information; and determining, by the network device, the precoding matrix W based on the rank indicator RI and the second precoding matrix indicator PMI2.
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公开(公告)号：US10581497B2
公开(公告)日：2020-03-03
申请号：US16504832
申请日：2019-07-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Kunpeng Liu , Xueru Li , Bingyu Qu
IPC: H04B7/0456 , H04L5/00 , H04B7/06
Abstract: The present disclosure relates to information feedback methods and apparatus. One example method includes receiving signaling from a base station, where the signaling is used to instruct to feed back transmit diversity-based channel state information and sending feedback information to the base station, where the feedback information includes precoding matrix indicator (PMI), the PMI is used to indicate a precoding matrix in a precoding matrix set, and a structure of the precoding matrix is one of two specific structures.
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公开(公告)号：US20190334602A1
公开(公告)日：2019-10-31
申请号：US16505204
申请日：2019-07-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Xueru Li
Abstract: This application provides a channel state information feedback method, user equipment, and a base station. A base station configures N first reference signal resources for UE, and sends the N first reference signal resources to the UE. The UE feeds back the CSI of the M first reference signal resources in a horizontal dimension and the M pieces of first reference signal resource indication information to the base station. This overcomes a disadvantage that only channel state information in a horizontal dimension is fed back in conventional channel estimation.
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公开(公告)号：US20190260432A1
公开(公告)日：2019-08-22
申请号：US16403119
申请日：2019-05-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xueru Li , Kunpeng Liu , Bingyu Qu
IPC: H04B7/0417 , H04W72/04
Abstract: The present invention describes a channel measurement method, including: sending, by a base station, first control information to user equipment UE, where the first control information is used to indicate a measurement reference signal of the UE on a carrier, and the first control information includes at least one first measurement configuration set, and is used to instruct the UE to measure the measurement reference signal based on the at least one first measurement configuration set; sending, by the base station, the measurement reference signal to the UE.
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