公开(公告)号：US11336408B2

公开(公告)日：2022-05-17

申请号：US16673672

申请日：2019-11-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongxia Lyu ,  Jinhuan Xia

IPC: H04L5/00 ,  H04W72/12 ,  H04W72/14 ,  H04W74/08

Abstract: This application provides a transmission resource allocation method and apparatus, and a data sending method and apparatus. The method includes: determining, by a network device, at least one basic resource element, where each of the at least one basic resource element corresponds to at least one pilot, a first basic resource element in the at least one basic resource element corresponds to at least two pilots, and the at least two pilots are different; and indicating, by the network device to a terminal device, at least one pilot corresponding to one or more of the at least one basic resource element.

公开(公告)号：US11239970B2

公开(公告)日：2022-02-01

申请号：US16712566

申请日：2019-12-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinhuan Xia ,  Yongxia Lyu ,  Yongping Zhang

IPC: H04L5/00 ,  H04W72/04

Abstract: This application provides a reference signal sending method. The method includes: determining a resource set, where the resource set is used to carry a demodulation reference signal and downlink information, the downlink information is downlink control information or downlink data, the demodulation reference signal is used to demodulate the downlink information, the resource set includes a first time-frequency resource group and a second time-frequency resource group, the first time-frequency resource group is reserved time-frequency resources, and the second time-frequency resource group is used to carry the demodulation reference signal; determining a third time-frequency resource group based on a location of the second time-frequency resource group and an offset when the first time-frequency resource group and the second time-frequency resource group overlap, wherein the offset is determined according to a preset rule; and sending the demodulation reference signal by using the third time-frequency resource group.

公开(公告)号：US11239938B2

公开(公告)日：2022-02-01

申请号：US15931571

申请日：2020-05-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruixiang Ma ,  Lei Guan ,  Yongxia Lyu ,  Jiafeng Shao ,  Xinghua Song

IPC: H04L1/00 ,  H04W72/04 ,  H04W80/08

Abstract: Embodiments of this application provide slot format configuration method and device. According to the method, a network device determines a slot format index for performing uplink-downlink transmission with a terminal device. The slot format index corresponds to a row in a slot format information table, and each row in the slot format information table includes positions of uplink symbols, positions of downlink symbols, and positions of unknown symbols in a slot. The network device sends the slot format index to the terminal device. The terminal device determines a slot format for the uplink-downlink transmission from the slot format information table based on the slot format index. The uplink-downlink slot configuration method provided in the embodiments of this application may satisfy specific requirements of low-latency and high-reliability communication scenarios.

公开(公告)号：US11212154B2

公开(公告)日：2021-12-28

申请号：US17028634

申请日：2020-09-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongxia Lyu ,  Zhiheng Guo

IPC: H04L27/26 ,  H04L5/00 ,  H04J1/06 ,  H04J11/00 ,  H04J13/00

Abstract: A signal receiving method, an apparatus and a communication system. The network device determines a subcarrier location of a to-be-sent first signal and a subcarrier location of a to-be-sent second signal, where subcarriers occupied by the first signal are continuous subcarriers in a first group of resource elements, subcarriers occupied by the second signal are continuous subcarriers in a second group of resource elements, a quantity of the subcarriers occupied by the first signal is the same as a quantity of the subcarriers occupied by the second signal, and a subcarrier spacing in the first group of resource elements is different from a subcarrier spacing in the second group of resource elements, the first signal and the second signal are primary synchronization signals. The network device sends the first signal to the terminal device and sends the second signal to the terminal device or other terminal device.

公开(公告)号：US11177905B2

公开(公告)日：2021-11-16

申请号：US16712671

申请日：2019-12-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongxia Lyu ,  Jingnan Wang ,  Ruixiang Ma

IPC: H04L1/00 ,  H04L1/20 ,  H04L27/36

Abstract: This application discloses a channel quality feedback method and apparatus, and the channel quality feedback method includes the following steps: determining, by a network device, a channel quality indicator set of a terminal device, where the channel quality indicator set includes at least one channel quality indicator value, and the channel quality indicator value is used to indicate channel quality; and sending, by the network device, the channel quality indicator set to the terminal device.

公开(公告)号：US11108502B2

公开(公告)日：2021-08-31

申请号：US16599243

申请日：2019-10-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ruixiang Ma ,  Yongxia Lyu

IPC: H04W72/12 ,  H04L1/16 ,  H04W72/04

Abstract: This application provides a feedback information sending method, including: receiving, by a terminal device, in a first time unit, a first reference signal sent by a network device, where the first reference signal corresponds to first downlink control information, and the first downlink control information is used to schedule a first information block; determining, by the terminal device based on the first reference signal, that receiving of the first downlink control information in the first time unit fails; and sending, by the terminal device, on a first resource corresponding to the first time unit, first feedback information to the network device, where the first feedback information indicates that the receiving of the first downlink control information fails.

公开(公告)号：US11026195B2

公开(公告)日：2021-06-01

申请号：US16266404

申请日：2019-02-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongxia Lyu ,  Zhiheng Guo

IPC: H04W56/00 ,  H04W72/04 ,  H04L27/26 ,  H04W74/08 ,  H04W74/00 ,  H04L5/00

Abstract: In a communication method disclosed in this application, a terminal device receives, from a network device, a synchronization signal and a system information signal that are generated based on a first subcarrier spacing. The terminal device sends a random access request signal to the network device based on a second subcarrier spacing and a first transmission resource, where a type of the first transmission resource corresponds to a third subcarrier spacing and/or a fourth subcarrier spacing. The terminal device further receives a random access response signal generated based on the fourth subcarrier spacing, where the random access response signal is used for instructing the terminal device to access a network or the random access response signal is used for instructing the terminal device to prepare to access network. Thereby, cell search for and random access to a network using a plurality of subcarrier spacings can be supported.

公开(公告)号：US11018802B2

公开(公告)日：2021-05-25

申请号：US16575530

申请日：2019-09-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongxia Lyu ,  Ruixiang Ma

IPC: H04L1/00 ,  H04L1/16

Abstract: A channel quality indicator feedback method and device. The method includes: determining, by a terminal device, a response message of data and a channel state, where the response message includes an acknowledgement message and/or a negative acknowledgement message; determining, by the terminal device, first channel state information based on the response message of the data and the channel state; and sending, by the terminal device, the response message and the first channel state information to the network side device. According to the method and apparatus provided, reliability of downlink data from a base station can be improved.

公开(公告)号：US11012192B2

公开(公告)日：2021-05-18

申请号：US16456859

申请日：2019-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ruixiang Ma ,  Yongxia Lyu

IPC: H04L1/06 ,  H04L1/00 ,  H04L1/16 ,  H04W80/08

Abstract: Embodiments of this application provide a control information sending method and apparatus. A network device generates first control information for a first TB, where the first TB includes n code block (CB) groups, where N is a maximum quantity of CB groups included in the first TB; each CB group includes at least one CB; the first control information includes N control information fields, and the N control information fields are in correspondence with the maximum N CB groups included in the first TB; and a control information field i in the N control information fields is used to indicate whether a CB group corresponding to the control information field i is to be sent or received, and i∈[1, N]. In this way, a quantity of bits included in downlink control information can remain fixed, thereby reducing blind detection complexity of a terminal device.

公开(公告)号：US10932251B2

公开(公告)日：2021-02-23

申请号：US16576841

申请日：2019-09-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruixiang Ma ,  Yongxia Lyu

IPC: H04W72/04

Abstract: In a data sending method, a terminal device receives first control information in a first time unit. The first control information indicates a first time domain resource that is used to send a first information block. The terminal device receives the first information block on at least a part of the first time domain resource based on the first control information. The terminal device further receives second control information in a second time unit. The second control information indicates a second time domain resource that is used to send the first information block. The terminal device receives the first information block on the second time domain resource based on the second control information. The first time unit is different from the second time unit, and the first time domain resource and the second time domain resource have an overlapping time domain resource.