公开(公告)号：US11438847B2

公开(公告)日：2022-09-06

申请号：US17170108

申请日：2021-02-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengwei Liu ,  Shitong Yuan ,  Lei Chen

IPC: H04W52/14 ,  H04L5/00 ,  H04W52/24 ,  H04W72/04

Abstract: This application provides a power control method including: receiving, by a second node, radio resource control (RRC) from a first node, where the RRC includes a power control parameter set configured for the second node, the power control parameter set includes a power control index, and the power control index is determined based on a transmission mode or a transmission capability of the second node; receiving downlink control information (DCI) including power control index indication information used to: when the first node schedules the second node, indicate a value of a power control index that is for uplink transmission and that is for the second node; determining a transmit power based on the power control index indication information and the power control parameter set; and sending a signal at the determined transmit power.

公开(公告)号：US20220174636A1

公开(公告)日：2022-06-02

申请号：US17672516

申请日：2022-02-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengwei Liu ,  Shitong Yuan ,  Jing Qiu

IPC: H04W56/00

Abstract: This application provides a timing synchronization method and an apparatus, to improve precision of a downlink transmit timing of a relay node. The method includes: The first node receives first indication information from a donor node, where the first indication information is used to indicate information about a plurality of second nodes, and the second node is a parent node of the first node. The first node receives a plurality of pieces of timing information from the plurality of second nodes. The first node determines a first downlink transmit timing of the first node based on the plurality of pieces of timing information.

公开(公告)号：US11108605B2

公开(公告)日：2021-08-31

申请号：US16659310

申请日：2019-10-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xi Zhang ,  Fengwei Liu ,  Lei Chen ,  Minghui Xu

IPC: H04L27/26 ,  H04J13/00 ,  H04L5/00

Abstract: A PTRS processing method and an apparatus. The method includes: receiving, by a terminal, first indication information and second indication information from a network device, where the first indication information is used to indicate a time-domain location at which a PTRS is to be sent by the terminal, and the second indication information is used to indicate an offset of an initial time-domain location to which the PTRS is mapped by the terminal; mapping, by the terminal, the PTRS to one or more DFT-s-OFDM symbols based on the first indication information and the second indication information; and sending, by the terminal, the one or more DFT-s-OFDM symbols. In this way, the PTRS mapped to the DFT-s-OFDM symbol is offset at a DFT-s-OFDM symbol level, so that PTRS collision between terminals can be avoided to an extent, thereby improving phase tracking precision.

公开(公告)号：US20210219155A1

公开(公告)日：2021-07-15

申请号：US17213999

申请日：2021-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Feng Ye ,  Xiaoyong Tang ,  Fengwei Liu

IPC: H04W24/08 ,  H04L5/00 ,  H04W72/08

Abstract: This application provides an interference measurement method and apparatus. A second functional entity of an interference-generating node sends, by using one or more beams corresponding to a reference signal resource identifier of a first functional entity of the interference-generating node, a reference signal used for interference measurement, so that an interfered node can perform interference measurement.

公开(公告)号：US20200374871A1

公开(公告)日：2020-11-26

申请号：US16992134

申请日：2020-08-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Liu ,  Xiaoyong Tang ,  Lei Chen ,  Jing Qiu

IPC: H04W72/04 ,  H04W56/00

Abstract: Various embodiments provide a relay transmission method, where a first node is a parent node of a second node. In those embodiments, a request message from the first node can be received by the second node, where the request message is configured to request the second node to become a parent node of the first node. Still in those embodiments, indication information can be sent, by the second node, to the first node, where the indication information is used to indicate that a downlink beam sent from the second node to the first node after the second node becomes the parent node is the same as or similar to an uplink beam sent from the second node to the first node when the first node is the parent node. The indication information may be carried in a response message for the request message.