公开(公告)号：US20250150144A1

公开(公告)日：2025-05-08

申请号：US19013788

申请日：2025-01-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie WANG ,  Li FAN ,  Shibin GE ,  Hui WANG ,  Zhimeng ZHONG ,  Xiaoyan BI

IPC: H04B7/06 ,  H04B7/0417

Abstract: This application provides a channel state information (CSI) feedback method including: a communication apparatus receives first indication information, wherein the first indication information is determined based on a received precoded reference signal corresponds to P reference signal ports; the first indication information indicates B complex coefficients determined from K complex coefficients according to a preset priority value, the K complex coefficients are determined from a complex coefficient set comprising U complex coefficients that are determined for an sth reference signal port in S reference signal ports at each transport layer of Z transport layers, the S reference signal ports are a part or all of the P reference signal ports, the U complex coefficients are a part or all of Ts complex coefficients corresponding to the sth reference signal port; and determines a precoding matrix based on the first indication information.

公开(公告)号：US20230361836A1

公开(公告)日：2023-11-09

申请号：US18352896

申请日：2023-07-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yiling YUAN ,  Shibin GE ,  Li FAN ,  Jie WANG ,  Huangping JIN

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0456

CPC classification number: H04B7/0626 ,  H04L5/0048 ,  H04B7/0456 ,  H04B7/0639

Abstract: This application provides a channel information obtaining method and a related device. In the method, first indication information may be received, where the first indication information indicates one of a plurality of parameter configuration combinations of a reference signal, and the plurality of parameter configuration combinations are associated with a same codebook. A terminal device may feed back channel state information based on the indicated parameter configuration combination.

公开(公告)号：US20230064117A1

公开(公告)日：2023-03-02

申请号：US17982239

申请日：2022-11-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhimeng ZHONG ,  Huangping JIN ,  Haifan YIN ,  Xiaoyan BI ,  Li FAN

IPC: H04B7/0456 ,  H04L5/00 ,  H04L25/02

Abstract: Example channel measurement methods and communications apparatus are described. One example method includes receiving a precoded reference signal by a terminal device, where the precoded reference signal is obtained by precoding a reference signal based on K angle vectors and L delay vectors. First indication information is generated and sent, where the first indication information indicates P weighting coefficients corresponding to P angle-delay pairs. The P weighting coefficients are determined by using the precoded reference signal. The P angle-delay pairs and the P weighting coefficients corresponding to the P angle-delay pairs are used to determine a precoding matrix. Each angle-delay pair includes one of the K angle vectors and one of the L delay vectors. The K angle vectors and the L delay vectors are determined based on uplink channel measurement.

公开(公告)号：US20220224568A1

公开(公告)日：2022-07-14

申请号：US17707323

申请日：2022-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping JIN ,  Shibin GE ,  Zhimeng ZHONG ,  Yong LIU ,  Xiaoyan BI ,  Li FAN

IPC: H04L25/02 ,  H04W56/00

Abstract: 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.

公开(公告)号：US20240356839A1

公开(公告)日：2024-10-24

申请号：US18762115

申请日：2024-07-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ka ZHANG ,  Bin WANG ,  Juan ZHENG ,  Li FAN ,  Sheng FANG

IPC: H04L45/00 ,  H04L45/24 ,  H04L45/745

CPC classification number: H04L45/34 ,  H04L45/24 ,  H04L45/745

Abstract: This application discloses a route selection method and a related device. A control entity determines first metric information of a first segment routing (SR) path, generates a first border gateway protocol (BGP) update message including the first metric information, and sends the first BGP update message to an ingress node of the first SR path, where the first metric information represents quality of the first SR path, the first metric information is used for route selection on a plurality of paths, each of the plurality of paths has a same IP prefix of a destination node, and the plurality of paths include the first SR path. According to the method, the control entity can send, to the ingress node of the SR path by using the BGP update message, the metric information that represents the quality of the SR path.

公开(公告)号：US20220407802A1

公开(公告)日：2022-12-22

申请号：US17893525

申请日：2022-08-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yaqun XIAO ,  Li FAN

IPC: H04L45/28 ,  H04L45/00

Abstract: An identifier can indicate whether local protection is allowed is added to a packet. In a process in which a packet that carries a protection flag is transmitted along a primary path, if a node along the path determines that the primary path is faulty, but the protection flag indicates that local switching to a protection path is not allowed, the node along the path does not perform local protection, so that the packet is not switched by the node along the path to the protection path. This prevents the packet from passing through a protection path with the node along the path as an ingress when the primary path is faulty, helps traffic on the primary path to be switched to an end-to-end protection path in time, and helps a packet sending side to switch the traffic on the primary path to the end-to-end protection path in time.

公开(公告)号：US20230066053A1

公开(公告)日：2023-03-02

申请号：US17974619

申请日：2022-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chuncheng GONG ,  Li FAN ,  Weijin PAN ,  Junwei MU ,  Ge ZHANG

IPC: H05K1/02 ,  H01L23/00 ,  H01L23/32 ,  H05K1/18

Abstract: This application provides a stiffener ring and a surface packaging assembly. The stiffener ring is configured to correct warpage of a substrate of the surface packaging assembly. The stiffener ring includes an annular stiffener ring body and an adjustment block that is disposed at a same layer as the stiffener ring body and that is fastened to at least one corner of the stiffener ring body.
A coefficient of thermal expansion of the adjustment block is less than a coefficient of thermal expansion of the stiffener ring body. Coordination between the adjustment block and the stiffener ring body alleviates an “M-shape” overpressure phenomenon of a warpage deformation caused by the stiffener ring to the substrate at a high temperature, reduces warpage of the substrate, and improves flatness of the surface packaging assembly.

公开(公告)号：US20210320694A1

公开(公告)日：2021-10-14

申请号：US17347903

申请日：2021-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhimeng ZHONG ,  Huangping JIN ,  Haifan YIN ,  Xiaoyan BI ,  Li FAN

IPC: H04B7/0456 ,  H04L5/00 ,  H04L25/02

Abstract: Example channel measurement methods and communications apparatus are described. One example method includes receiving a precoded reference signal by a terminal device, where the precoded reference signal is obtained by precoding a reference signal based on K angle vectors and L delay vectors. First indication information is generated and sent, where the first indication information is used to indicate P weighting coefficients corresponding to P angle-delay pairs. The P weighting coefficients are determined by using the precoded reference signal. The P angle-delay pairs and the P weighting coefficients corresponding to the P angle-delay pairs are used to determine a precoding matrix. Each angle-delay pair includes one of the K angle vectors and one of the L delay vectors. The K angle vectors and the L delay vectors are determined based on uplink channel measurement.

公开(公告)号：US20210314034A1

公开(公告)日：2021-10-07

申请号：US17347850

申请日：2021-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haifan YIN ,  Huangping JIN ,  Zhimeng ZHONG ,  Xiaoyan BI ,  Li FAN

IPC: H04B7/0456 ,  H04B7/0417

Abstract: One example method includes receiving one or more precoded reference signals, where the one or more precoded reference signals are obtained by precoding one or more reference signals based on K angle vectors. First indication information can then be generated, where the first indication information is used to indicate at least one delay vector and P weighting coefficients corresponding to P angle-delay pairs, the at least one delay vector and the P weighting coefficients are determined based on the one or more precoded reference signals, each of the P angle-delay pair includes one of the K angle vectors and one of the at least one delay vector, and the P angle-delay pairs and the P weighting coefficients are used to determine a precoding matrix, where P and K are positive integers, and where P≥1, K≥1. The first indication information can then be sent.

公开(公告)号：US20240030981A1

公开(公告)日：2024-01-25

申请号：US18358459

申请日：2023-07-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li FAN ,  Shibin GE ,  Jie WANG ,  Zhimeng ZHONG ,  Qibo QIN ,  Huangping JIN

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0639

Abstract: This application discloses a channel state information feedback method and a communication apparatus. The method includes: determining channel state information based on a first codebook, and sending the channel state information. The first codebook is determined based on a channel represented by one or more spatial-frequency domain column vectors, and the one or more spatial-frequency domain column vectors indicate the channel in joint spatial-frequency domain. In this solution, the first codebook may be determined based on the channel represented by the one or more spatial-frequency domain column vectors. Because the one or more spatial-frequency domain column vectors may represent the channel in joint spatial-frequency domain, that is, the first codebook represents the channel based on joint spatial-frequency domain, a joint spatial-frequency domain feature may be fully used, to explore a sparse feature of the channel, thereby improving system performance.