公开(公告)号：US12088419B2

公开(公告)日：2024-09-10

申请号：US17391168

申请日：2021-08-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xingwei Zhang ,  Junwei Wang

IPC: H04L1/1829 ,  H04L1/00 ,  H04W92/18

CPC classification number: H04L1/1864 ,  H04L1/0026 ,  H04W92/18

Abstract: A feedback method and apparatus which are used to provide a feedback mechanism in a sidelink communications system, and may be applied to the internet of vehicles, for example, V2X, LTE-V, and V2V. The method includes: a first terminal device determines that a feedback condition is met, and sends feedback information to a second terminal device, where the feedback information includes at least one of channel state information and a receive response, and the receive response includes a positive acknowledgment, a negative acknowledgment, or discontinuous transmission. In this way, the feedback condition is set, so that the first terminal device sends the feedback information only when the feedback condition is met. In this way, resource overheads and information redundancy that are caused when each terminal device in a communication group sends feedback information are effectively avoided.

公开(公告)号：US12058671B2

公开(公告)日：2024-08-06

申请号：US17487921

申请日：2021-09-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chao Li ,  Yuan Wang ,  Fuqiang Zhang ,  Xingwei Zhang ,  Lei Lu

IPC: H04W72/1263 ,  H04L1/00 ,  H04W4/40 ,  H04W52/52 ,  H04W72/0446

CPC classification number: H04W72/1263 ,  H04L1/0067 ,  H04W4/40 ,  H04W52/52 ,  H04W72/0446

Abstract: The communication method and the communications apparatus may be applied to the internet of vehicles, for example, V2X, LTE-V, and V2V. The method includes: A first terminal apparatus determines a scaling factor based on a subcarrier spacing of a first time-frequency resource to be used to send first data and/or a quantity of slots occupied by the first time-frequency resource. The first data is to-be-sent data of the first terminal apparatus, and the first time-frequency resource occupies a single slot or a plurality of consecutive slots. Then, the first terminal apparatus determines, based on the scaling factor, a size of a transmission block carrying the first data, and sends the transmission block carrying the first data to a second terminal apparatus on the first time-frequency resource.

公开(公告)号：US11856393B2

公开(公告)日：2023-12-26

申请号：US17421869

申请日：2020-01-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yifan Xue ,  Jian Wang ,  Xingwei Zhang

IPC: H04W52/24 ,  H04W76/23 ,  H04L5/00 ,  H04W52/14 ,  H04W52/38

CPC classification number: H04W52/242 ,  H04L5/0035 ,  H04W52/146 ,  H04W52/383 ,  H04W76/23

Abstract: A power control method and a power control apparatus, the method including determining a path loss estimate between a first terminal device and the second terminal device, determining a transmit power of a signal based on the path loss estimate between the first terminal device and the second terminal device and further based on a path loss estimate between a network device and the second terminal device, and sending, by the second terminal device, the signal to the first terminal device based on the transmit power of the signal. The signal is a physical sidelink shared channel (PSSCH), and the transmit power of the PSSCH is determined according to at least a maximum transmit power of the PSSCH, a target receive power of the PSSCH, the path loss estimate between the first terminal device and the second terminal device, and a target receive power of the PSSCH.

公开(公告)号：US11638249B2

公开(公告)日：2023-04-25

申请号：US16993700

申请日：2020-08-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xingwei Zhang ,  Lili Zhang

IPC: H04W72/0446 ,  H04L5/00 ,  H04W72/23

Abstract: Example communication methods and apparatus are described. One example communication method includes receiving signaling on a first carrier by a terminal device. The terminal device determines slot formats of N slots on at least one second carrier, where the slot formats of the N slots are determined based on M slot formats. N and M are positive integers. The M slot formats are obtained based on the received signaling, and the N slots are determined based on at least one of the following: a moment at which the signaling is received, and a relationship between a length of a first slot on the first carrier and a length of a second slot on the at least one second carrier. According to the communication method, the terminal device, and a network device in this application, slot formats of slots on a plurality of carriers can be determined.

公开(公告)号：US11611945B2

公开(公告)日：2023-03-21

申请号：US17035735

申请日：2020-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chao Li ,  Xingwei Zhang ,  Shulan Feng

IPC: H04W56/00 ,  H04W84/22 ,  H04J3/06 ,  H04W84/04 ,  H04W88/02

Abstract: Embodiments of the present invention provide a synchronization method, user equipment, and a base station. The synchronization method includes: obtaining, by user equipment, synchronization information, where the synchronization information includes at least one of the following information: synchronization source selection parameter information, synchronization source indication information, or synchronization source priority information; receiving, by the user equipment, a first synchronization signal sent by at least one synchronization source; and determining, by the user equipment, a synchronization reference source according to the synchronization information and the first synchronization information. In the embodiments of the present invention, the synchronization information is obtained, and the synchronization reference source is determined according to the synchronization information and the synchronization signal of the at least one synchronization source, so that synchronization can be implemented.

公开(公告)号：US11363574B2

公开(公告)日：2022-06-14

申请号：US16503906

申请日：2019-07-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xingwei Zhang ,  Guanglong Du ,  Chao Li ,  Jie Shi

IPC: G01R31/08 ,  H04W72/04 ,  H04L5/00 ,  H04W24/10

Abstract: An information transmission method, is provided, including, a terminal determines attribute information of uplink information based on a beam identifier, and sends the uplink information to a network side device based on the attribute information. After receiving the uplink information, the network side device determines the beam identifier based on the uplink information. In this process, the terminal implicitly indicates beam IDs of different selected beams by using attribute information of reported uplink information. Different beams correspond to different attribute information of the uplink information. In other words, each beam corresponds to specific attribute information of the uplink information. Implicitly indicating a beam ID to the network side device reduces LTE standardization complexity and reduces signaling overheads.

公开(公告)号：US11357032B2

公开(公告)日：2022-06-07

申请号：US15923453

申请日：2018-03-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chao Li ,  Xingwei Zhang

IPC: H04W72/12 ,  H04W72/14

Abstract: Embodiments of the present invention provide a control information transmission method, a transmit end, and a receive end. The method includes: determining, by the transmit end, a first time domain resource used for sending scheduled data and a second time domain resource used for sending control information of the scheduled data in a transmission period, where the second time domain resource is a subset of the first time domain resource; and sending, by the transmit end, the control information on the second time domain resource, where the control information includes a parameter used to instruct the receive end to receive the scheduled data. Using the present invention can improve a success rate of data detection, shorten a transmission delay, and further improve reliability of a communications system.

公开(公告)号：US20220173829A1

公开(公告)日：2022-06-02

申请号：US17672545

申请日：2022-02-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haining Huang ,  Chao Li ,  Xingwei Zhang ,  Junwei Wang ,  Zhe Liu

IPC: H04L1/00 ,  H04W72/04 ,  H04W72/08 ,  H04W72/02

Abstract: This application provides a sidelink channel state information transmission method and a communication apparatus. The method and the apparatus may be applied to systems such as an internet of vehicles, V2X, and V2V. The method includes: a first terminal device sends modulation and coding scheme (MCS) table indication information, wherein the MCS table indication information indicates a MCS table corresponding to data sent by the first terminal device to a second terminal device, and the MCS table is associated with a resource pool for sending the data.

公开(公告)号：US11252671B2

公开(公告)日：2022-02-15

申请号：US16992904

申请日：2020-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qian Zhang ,  Xingwei Zhang ,  Zhe Liu ,  Shulan Feng ,  Meng Deng

IPC: H04W52/14 ,  H04W52/36 ,  H04W52/42

Abstract: A power control method and apparatus are provided. The method includes: A communications device receives a first power value and a second power value that are configured by a network side. The first power value is a maximum allowed transmit power value that is for a first cell group and that is configured by the network side for the communications device, and the second power value is a maximum allowed transmit power value that is for a second cell group and that is configured by the network side for the communications device. The communications device determines, based on the first power value and the second power value, a total guaranteed power value that is of the communications device and that applies to a case in which a resource in the first cell group overlaps a resource in the second cell group.

公开(公告)号：US20210377889A1

公开(公告)日：2021-12-02

申请号：US17402150

申请日：2021-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chao Li ,  Yong Mo ,  Xingwei Zhang ,  Jun Luo ,  Pu Yuan

IPC: H04W56/00 ,  H04W72/04 ,  H04L27/26

Abstract: This application provides a communication method. The communication method includes: A first device sends indication information, where the indication information is used to indicate whether the first device sends a first synchronization signal block in a synchronization slot of a sidelink, and the synchronization slot is used to transmit a synchronization signal block; and the first device sends first data in the synchronization slot of the sidelink. Because the first device indicates a sending behavior of the first device in the synchronization slot before sending the first data, a receiver may determine a processing manner of the receiver in the synchronization slot based on the indication information.