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    Downlink channel quality information acquisition method and device
    73.
    发明授权
    Downlink channel quality information acquisition method and device 有权
    下行链路信道质量信息采集方法及装置

    公开(公告)号：US09520922B2

    公开(公告)日：2016-12-13

    申请号：US14491590

    申请日：2014-09-19

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Dageng Chen ,  Xiaoyan Bi ,  Jiayin Zhang

    IPC: H04B7/02 ,  H04B7/06

    CPC classification number: H04B7/024 ,  H04B7/0632 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/442 ,  Y02D70/444

    Abstract: A downlink channel quality information acquisition method includes: a transmission node in a coordinated node set acquires the noise receiving power of a user equipment (UE11) and the interference power on the UE11 of a node in a non-coordinated set; the transmission node in the coordinated node set acquires, via the transmission node in the coordinated node set, an inter-user interference power during the multi-user scheduling and the effective signal receiving power of the UE11; the transmission node in the coordinated node set acquires the interference power on the UE11 of a non-transmission node in the coordinated set; calculating the ratio between the effective signal receiving power and the sum of an interference source power and the noise receiving power of the UE11, and using the ratio as the value of the downlink CQI between the transmission node and the UE11.

    Abstract translation: 下行链路信道质量信息获取方法包括：协调节点集中的传输节点获取用户设备（UE11）的噪声接收功率和非协调集合中的节点的UE11的干扰功率; 协调节点集中的传输节点通过协调节点集中的传输节点获取多用户调度期间的用户间干扰功率和UE11的有效信号接收功率; 协调节点集中的传输节点获取协调集中的非传输节点的UE11的干扰功率; 计算有效信号接收功率与干扰源功率和UE11的噪声接收功率之和的比率，并将该比率用作发送节点与UE11之间的下行链路CQI的值。

    Communication method and communications apparatus
    74.
    发明授权
    Communication method and communications apparatus 有权

    公开(公告)号：US12273901B2

    公开(公告)日：2025-04-08

    申请号：US17672526

    申请日：2022-02-15

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Liuliu Ji ,  Fei Gao ,  Haicun Hang ,  Xiaoyan Bi

    IPC: H04W72/51 ,  H04L1/00 ,  H04W72/0446 ,  H04W72/23

    Abstract: This disclosure provides communications methods and apparatuses. In an implementation, a terminal device performs operations comprising: receiving first configuration information from a network device, wherein the first configuration information indicates a configured quantity of physical downlink control channel (PDCCH) candidate locations in a time unit corresponding to a first control resource set (CORESET) group of a plurality of CORESET groups in a target cell, and determining, based on the configured quantity and a first quantity, a quantity of PDCCH candidate locations for PDCCH detection in the time unit corresponding to the first CORESET group, wherein the first quantity is a preset quantity of PDCCH candidate locations in a time unit corresponding to a CORESET group in the target cell.

    COMMUNICATION METHOD AND APPARATUS
    75.
    发明公开
    COMMUNICATION METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20240275553A1

    公开(公告)日：2024-08-15

    申请号：US18643612

    申请日：2024-04-23

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huan Sun ,  Xiaoyan Bi ,  Yong Liu

    IPC: H04L5/00 ,  H04B7/04 ,  H04L25/02

    CPC classification number: H04L5/0051 ,  H04B7/04013 ,  H04L25/0224

    Abstract: This application provides a communication method and apparatus, applicable to the fields such as NR and LTE, to accurately estimate a G channel or an r/R channel, so as to ensure that other subsequent channels can still be accurately estimated. The method includes: A first device receives a first reference signal and performs channel estimation based on the first reference signal. The first reference signal is a reference signal determined by a second device by performing spectrum shifting on a second reference signal, and a frequency of the first reference signal is different from a frequency of the second reference signal.

    CSI measurement method and apparatus
    77.
    发明授权
    CSI measurement method and apparatus 有权

    公开(公告)号：US12016048B2

    公开(公告)日：2024-06-18

    申请号：US17488838

    申请日：2021-09-29

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Ye Wu ,  Xiaoyan Bi

    IPC: H04W72/08 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/542 ,  H04W76/28

    CPC classification number: H04W72/542 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/0453 ,  H04W76/28

    Abstract: This application provides a CSI measurement method and apparatus. In the method, a terminal may send, to a network device, a first RS that occupies a plurality of frequency domain resource segments in one time domain unit, where the plurality of frequency domain resource segments are discontinuously distributed on a frequency band of the terminal, and the network device receives the first RS on a corresponding frequency domain resource segment, and measures CSI based on the first RS. Currently, to avoid channel aging, a method is to shorten an SRS periodicity. Because frequency domain resources occupied by the SRS are continuously distributed on an entire frequency band, this method leads to a waste of time-frequency resources. However, the first RS in this application is discontinuously distributed on a frequency band of the terminal, and a relatively small quantity of time-frequency resources are occupied.

    Downlink control information transmission method, apparatus, and system
    78.
    发明授权
    Downlink control information transmission method, apparatus, and system 有权

    公开(公告)号：US11979225B2

    公开(公告)日：2024-05-07

    申请号：US17487397

    申请日：2021-09-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Liuliu Ji ,  Hongzhe Shi ,  Haicun Hang ,  Min Zhang ,  Xiaohan Wang ,  Xiaoyan Bi

    IPC: H04W40/06 ,  H04J13/00 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23

    CPC classification number: H04J13/004 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/23

    Abstract: Embodiments of this application provide a downlink control information transmission method in which after receiving one piece of downlink control information (DCI), the terminal device learns whether blind detection of DCI needs to be continued. The method includes: A terminal device receives first DCI, where the first DCI includes first indication information, and the first indication information is used to indicate a first antenna port. The terminal device determines, based on the first antenna port and antenna port configuration information, whether second DCI exists. The configuration information may include an index of a CDM group to which each of a plurality of antenna ports belongs and a maximum quantity of CDM groups that is supported by the terminal device. Alternatively the configuration information may include one or more antenna port groups, and each of the one or more antenna port groups includes one or more antenna ports.

    Beam reporting method and communications apparatus
    79.
    发明授权
    Beam reporting method and communications apparatus 有权

    公开(公告)号：US11910218B2

    公开(公告)日：2024-02-20

    申请号：US17324712

    申请日：2021-05-19

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Hongzhe Shi ,  Shibin Ge ,  Xiaoyan Bi

    IPC: H04W24/10 ,  H04W72/044 ,  H04W72/23 ,  H04L5/00 ,  H04B7/06

    CPC classification number: H04W24/10 ,  H04L5/0048 ,  H04W72/046 ,  H04W72/23

    Abstract: A beam reporting method and a communications apparatus is provided. The method includes that a terminal device receives first information, where the first information is used to configure at least two reference signal resource groups; and sending, by the terminal device, reporting information, where the reporting information includes related information of at least two beams, the at least two beams are used to send reference signals carried on at least two reference signal resources, and the reference signals sent by using the at least two beams can be simultaneously received by the terminal device, where the at least two reference signal resources are respectively from the at least two reference signal resource groups. In this application, related information of beams of at least two transmission points is reported through one time of beam scanning, to implement beam training in a CoMP system.

    Method for indicating vectors used to construct precoding vector and communications apparatus
    80.
    发明授权
    Method for indicating vectors used to construct precoding vector and communications apparatus 有权

    公开(公告)号：US11863262B2

    公开(公告)日：2024-01-02

    申请号：US18063621

    申请日：2022-12-08

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huangping Jin ,  Xiaohan Wang ,  Xiaoyan Bi

    IPC: H04B7/02 ,  H04B7/0456 ,  H04B7/06

    CPC classification number: H04B7/0456 ,  H04B7/0626 ,  H04B7/0663

    Abstract: This disclosure provides methods and apparatuses for generating precoding vectors. One method includes: receiving a channel state information (CSI) report, wherein the CSI report indicates a quantity of space-frequency vector pairs to be reported for a quantity of R transport layers, wherein a size of an overhead for indicating the quantity of the space-frequency vector pairs is same when the quantity of R is greater than or equal to 2, wherein each of the space-frequency vector pairs comprises one spatial domain vector and one frequency domain vector, and wherein for each of the R transport layers, one or more frequency domain units associated with the transport layer correspond to one or more precoding vectors, and determining the quantity of space-frequency vector pairs according to the CSI report.

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