公开(公告)号：US20220330227A1

公开(公告)日：2022-10-13

申请号：US17809665

申请日：2022-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunhao Zhang ,  Juan Zheng ,  Zhe Luo ,  Xiuqiang Xu ,  Yan Chen

IPC: H04W72/04

Abstract: A network device sends downlink control information to a first terminal device. The downlink control information includes: time domain resource information, where the time domain resource is a time domain resource on which a first data channel is located; and frequency domain resource information, where the frequency domain resources are a frequency domain resource on which the first data channel is located and a frequency domain resource on which a second data channel is located. The second data channel is located on a time domain resource different from the time domain resource on which the first data channel is located. The first terminal device receives, on the determined time domain resource and frequency domain resource, a signal that is located on the first data channel and that is from the network device.

公开(公告)号：US11424964B2

公开(公告)日：2022-08-23

申请号：US16804624

申请日：2020-02-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaomeng Chai ,  Yiqun Wu ,  Yan Chen

IPC: H04W72/04 ,  H04L5/00 ,  H04W56/00 ,  H04L25/02 ,  H04W28/02 ,  H04W72/14

Abstract: A sounding reference signal sending method, a sounding reference signal receiving method, an apparatus, and a system relating to the field of communications technologies to improve SRS resource utilization and reduce resource waste are disclosed. The method includes: receiving, by a terminal device, SRS configuration information sent by a network side device, where the SRS configuration information includes first-type indication information used to instruct the terminal device to trigger, based on uplink data, sending of an SRS; and once there is the uplink data needing to be transmitted, sending the SRS on an SRS resource.

公开(公告)号：US11374708B2

公开(公告)日：2022-06-28

申请号：US15931066

申请日：2020-05-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Wang ,  Yan Chen ,  Xiuqiang Xu ,  Lei Zhang

IPC: H04L1/08 ,  H04L5/00 ,  H04W72/04

Abstract: This application discloses a communication method and a communications apparatus. The method implemented by a terminal includes: determining a configuration mode of one or more pilots used for K repeated transmissions, where in a first configuration mode, the terminal device sends a same pilot in each of first N of the K repeated transmissions, and does not send a pilot in remaining K−N transmissions; in a second configuration mode, the terminal device sends a first pilot in first N of the K repeated transmissions, and sends a second pilot in the remaining K−N transmissions; and in the third configuration mode, the terminal device sends the first pilot in each transmission in a first round of K transmissions, and sends the second pilot in each transmission in a second round of K transmissions; and sending the pilots based on the determined configuration mode when performing the K repeated transmissions.

公开(公告)号：US11290232B2

公开(公告)日：2022-03-29

申请号：US16683847

申请日：2019-11-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Wang ,  Yan Chen ,  Zukang Shen ,  Lei Zhang

IPC: H04L5/00 ,  H04L27/26

Abstract: This application provides a communications method and apparatus, to improve data transmission reliability. The method includes: determining, by a terminal device, M pilot ports that are used to transmit one data stream, where M is a positive integer greater than or equal to 2; and sending, by the terminal device to a network device, M pilot signals and the data stream that have been subject to same precoding processing, where the M pilot signals are respectively generated based on the M pilot ports.

公开(公告)号：US11265903B2

公开(公告)日：2022-03-01

申请号：US16938587

申请日：2020-07-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shuangshuang Xing ,  Lei Wang ,  Yan Chen

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04

Abstract: An uplink transmission method includes obtaining control information useable for uplink transmission with dynamic scheduling, determining based on information about a first time-frequency resource allocated to the uplink transmission and configuration information of a first reference signal useable for the uplink transmission, a second time-frequency resource useable to send the first reference signal, obtaining first information of a semi-statically configured resource useable for the uplink transmission, and in response to performing the uplink transmission based on the control information, sending, by the communications apparatus on an overlapping time-frequency resource of a second time-frequency resource and a third time-frequency resource, a reference signal generated based on configuration information of a second reference signal or failing to send a signal. The control information includes information about the first time-frequency resource allocated to the uplink transmission and configuration information of the first reference signal useable for the uplink transmission.

公开(公告)号：US11212781B2

公开(公告)日：2021-12-28

申请号：US16712716

申请日：2019-12-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yan Chen ,  Yiqun Wu ,  Xiuqiang Xu ,  Lei Wang

IPC: H04W72/04 ,  H04L1/00

Abstract: A parameter configuration method, a terminal device, a network side device, and a communications system are disclosed. The method includes: determining, by a network side device, a first transmission parameter and a second transmission parameter for a terminal device when the network side device needs to allocate a first-type transmission resource and a second-type transmission resource to the terminal device, where the first transmission parameter and the second transmission parameter meet a preset correspondence; generating, by the network side device, control information, where the control information includes first information, and the first information is used to indicate the first transmission parameter; and sending, by the network side device, the control information.

公开(公告)号：US11147047B2

公开(公告)日：2021-10-12

申请号：US16503589

申请日：2019-07-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yiqun Wu ,  Xiuqiang Xu ,  Yan Chen

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W72/12

Abstract: This application provides an uplink transmission method, a terminal, and a network side device. The method includes: storing, by a terminal, an uplink transmission time-frequency resource allocated by a network side device; when the terminal needs to send an uplink signal, determining the to-be-transmitted uplink signal based on a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the uplink transmission time-frequency resource; and sending, by the terminal, the uplink signal to the network side device. During implementation of the uplink transmission method provided in this application, grant free transmission solutions are provided for different uplink transmission time-frequency resources, to effectively improve communication performance.

公开(公告)号：US20210212093A1

公开(公告)日：2021-07-08

申请号：US17208835

申请日：2021-03-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuqiang Xu ,  Yan Chen ,  Yinggang Du

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/14

Abstract: A data transmission method, a terminal, and a network device are provided. In embodiments of the present disclosure, a terminal sends, in a grant-free mode, first data to a network device by using a grant-free resource, and if the terminal needs to switch from the grant-free mode to a grant mode, the terminal sends, in the grant mode, second data to the network device by using a grant resource. When the terminal initially transmits the first data in the grant-free mode, if the terminal needs to switch from the grant-free mode to the grant mode, the terminal may fall back to the grant mode and transmit data in the grant mode.

公开(公告)号：US11019646B2

公开(公告)日：2021-05-25

申请号：US16262611

申请日：2019-01-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuqiang Xu ,  Yan Chen ,  Yinggang Du

IPC: H04W72/12 ,  H04W72/14 ,  H04W72/04

Abstract: A data transmission method, a terminal, and a network device are provided, to improve reliability of data transmission performed by a terminal in a grant-free mode. In embodiments of the present invention, a terminal sends, in a grant-free mode, first data to a network device by using a grant-free resource, and if the terminal needs to switch from the grant-free mode to a grant mode, the terminal sends, in the grant mode, second data to the network device by using a grant resource. When the terminal initially transmits the first data in the grant-free mode, if the terminal needs to switch from the grant-free mode to the grant mode, the terminal may fall back to the grant mode and transmit data in the grant mode. In this way, reliability of data transmission is improved and a success rate of data transmission is improved to a relatively great extent.

公开(公告)号：US10892795B2

公开(公告)日：2021-01-12

申请号：US16522395

申请日：2019-07-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chao Wang ,  Yan Chen ,  Yiqun Wu ,  Liqing Zhang

IPC: H04B1/7143 ,  H04L5/00

Abstract: This application provides a transmission method that improves performance of detecting a terminal device by a network device. The method includes may include determining, by a network device, frequency hopping sequences of N terminal devices grouped into a plurality of groups in each of L adjacent slots, where any two terminal devices in each group of terminal devices use a same frequency resource, any two groups of terminal devices in each slot use different frequency resources, and each group of terminal devices in each slot includes a maximum of K terminal devices, pilot signals used by each group of terminal devices are elements in a set that includes K different pilot signals, and pilot signals used by any two terminal devices in each group in each slot are different. The method may also include sending, by the network device, first indication information to a first terminal device in the N terminal devices, where the first indication information determines a frequency hopping sequence of the first terminal device and a pilot signal used by the first terminal device in each slot.