公开(公告)号：US11533741B2

公开(公告)日：2022-12-20

申请号：US16441575

申请日：2019-06-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yiqun Wu ,  Xiuqiang Xu ,  Yan Chen

IPC: H04W72/12 ,  H04W72/04 ,  H04W88/02

Abstract: The disclosure provides an uplink transmission method, a terminal, and a network side device. The method includes: pre-allocating, by a network side device, an uplink transmission time-frequency resource to a terminal, and storing, by the terminal, the uplink transmission resource; and when the terminal needs to send a data packet, sending, by the terminal, the data packet to the network side device by using the uplink transmission resource, where the data packet includes indication information, the indication information is used to indicate whether the data packet is initially transmitted by the terminal or the data packet is retransmitted by the terminal, and the network side device can correctly receive the data packet and perform combination processing on the data packet based on the indication information. According to embodiments of the disclosure, reliability of grant-free transmission can be ensured, and communication performance can be effectively improved.

公开(公告)号：US11515972B2

公开(公告)日：2022-11-29

申请号：US16875824

申请日：2020-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuqiang Xu ,  Yan Chen ,  Liqing Zhang ,  Yi Wang ,  Yinggang Du ,  Yu Cao

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

Abstract: This application provides a method for determining a time-domain resource used for grant-free transmission. The method includes: obtaining, by a terminal device, a first time-domain period and a second time-domain period of grant-free transmission resources, where a size of the first time-domain period is P1 time units, a size of the second time-domain period is P2 time units, and P1 is greater than or equal to P2; obtaining, by the terminal device, a quantity k of grant-free transmission resources in the first time-domain period; and determining, by the terminal device based on the first time-domain period, the second time-domain period, and the quantity k of grant-free transmission resources in the first time-domain period, an index of a time unit in which a grant-free transmission resource used for grant-free transmission is located. In this way, grant-free transmission resources configured for the terminal device in two adjacent periods do not overlap.

公开(公告)号：US11483850B2

公开(公告)日：2022-10-25

申请号：US16925931

申请日：2020-07-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shengyu Li ,  Jiafeng Shao ,  Yongxia Lyu ,  Dan Hu ,  Xiuqiang Xu ,  Yan Chen ,  Yi Wang

IPC: H04W4/00 ,  H04W72/12 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04

Abstract: An uplink information transmission method and apparatus are disclosed. The uplink information transmission method includes: receiving, by a terminal device, downlink control information DCI sent by a network device, and determining, based on the DCI, a transmission resource of a physical uplink shared channel PUSCH scheduled by using the DCI, where the transmission resource of the PUSCH overlaps a transmission resource of a physical uplink control channel PUCCH in time domain, and the PUCCH is used to carry to-be-transmitted uplink control information UCI; and when a first condition is met, sending, by the terminal device, uplink data on the PUSCH, and skipping sending the UCI on the PUSCH.

公开(公告)号：US20220224546A1

公开(公告)日：2022-07-14

申请号：US17711879

申请日：2022-04-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin Cao ,  Haiwu Chen ,  Yan Chen ,  Bo Wang

IPC: H04L9/32 ,  H04L9/00

Abstract: Embodiments of this application disclose a software integrity protection method and apparatus. A first device obtains a first software package, where the first software package includes a first signature made by a first party for a second software package by using a first private key; and the first device performs a signing operation on the first software package by using a second private key, to obtain a third software package including a second signature, where the first private key is controlled by the first party, and the second private key is controlled by a second party. The first device sends the third software package to a second device. The second device verifies the first signature and the second signature in the third software package respectively based on a first public key and a second public key that are prestored, to obtain a verification result.

公开(公告)号：US11343030B2

公开(公告)日：2022-05-24

申请号：US16729287

申请日：2019-12-27

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W24/10 ,  H04L1/18 ,  H04L1/00 ,  H04W72/04

Abstract: This application discloses a method for repeated transmission and a terminal device. The method implemented by a terminal device includes: determining a transmission time unit used in the first transmission of to-be-transmitted data; determining, by the terminal device based on the determined transmission time unit and a parameter Q, a hybrid automatic repeat request HARQ process used to transmit the to-be-transmitted data, where Q is an integer greater than or equal to 1; and when repeated transmission of the to-be-transmitted data is not terminated before the first specific transmission time unit, performing, starting from the determined transmission unit, one transmission of the to-be-transmitted data in each transmission time unit by using the HARQ process until the last transmission of the to-be-transmitted data is performed in the first specific transmission time unit, where a period of the specific transmission time unit in a time domain resource is Q transmission time units.

公开(公告)号：US11317404B2

公开(公告)日：2022-04-26

申请号：US16748616

申请日：2020-01-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chao Wang ,  Yiqun Wu ,  Yan Chen

IPC: H04W4/00 ,  H04W72/04 ,  H04B1/69 ,  H04L1/00 ,  H04W76/10 ,  H04W72/12

Abstract: Embodiments of the present invention describe a data transmission method, a related device, and a system. The method may include sending, by a terminal, uplink data to a network device. The uplink data is scrambled by using a scrambling sequence, and the scrambling sequence is generated based on information about a radio resource used by the terminal to send the uplink data. According to the embodiments of the present invention, it can be ensured that scrambling and descrambling on the uplink data are successfully implemented when the network device does not obtain an identifier of the terminal in a cell.

公开(公告)号：US11201705B2

公开(公告)日：2021-12-14

申请号：US16990333

申请日：2020-08-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Wang ,  Lei Zhang ,  Yiqun Wu ,  Yan Chen

IPC: H04K1/10 ,  H04L27/28 ,  H04L5/00

Abstract: A data modulation method includes dividing, by a terminal device, to-be-sent data into N bit groups, wherein N≥2 and N is an integer. The method also includes generating, by the terminal device, N complex symbol groups. An ith complex symbol group is obtained by processing an ith bit group based on a mapping rule corresponding to the ith bit group. The mapping rule corresponding to the ith bit group is determined based on at least a group identity of the ith bit group and a first parameter. The first parameter includes at least one of a pilot parameter, a hopping identity, a terminal device identity, a layer index of a non-orthogonal layer, or a hopping offset. The N bit groups correspond to at least two different mapping rules, 0≤i≤N−1, and i is an integer. The method further includes sending, by the terminal device, the N complex symbol groups.

公开(公告)号：US11082166B2

公开(公告)日：2021-08-03

申请号：US16523941

申请日：2019-07-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiuqiang Xu ,  Yiqun Wu ,  Yan Chen

IPC: H04L1/18

Abstract: Embodiments provide a data retransmission method and a communications apparatus. The method includes: starting, by a transmit end, a timer before transmitting new data to a receive end, where a preset value of the timer is a maximum transmission latency corresponding to a service type of the data; retransmitting, by the transmit end, the data to the receive end when data needs to be retransmitted; transmitting, by the transmit end, the data to the receive end; and stopping sending, by the transmit end, retransmission data to the receive end when the timer expires, where the retransmission data is a part or all of the data. In this way, the following prior-art problem is avoided: Because a maximum retransmission quantity is not exhausted but a maximum transmission latency is exhausted, the transmit end still sends data, and consequently the receive end receives expiration data. This can avoid redundant transmission and save transmission resources.

公开(公告)号：US10972240B2

公开(公告)日：2021-04-06

申请号：US16539698

申请日：2019-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yiqun Wu ,  Yan Chen ,  Xiuqiang Xu

IPC: H04L5/00 ,  H04L27/26 ,  H04W4/00

Abstract: The present disclosure provides a pilot sequence transmission method and apparatus. A terminal device determines a first pilot number, determines a first pilot sequence and a second pilot sequence according to the first pilot number, respectively maps the first pilot sequence and the second pilot sequence to a first orthogonal frequency division multiplexing (OFDM) symbol and a second OFDM symbol of a grant free transmission resource, and sends the first pilot sequence and the second pilot sequence by using the first OFDM symbol and the second OFDM symbol. Therefore, a network device can determine activeness of the terminal device by detecting the first pilot sequence, and can detect only the second pilot sequence corresponding to the first pilot sequence, and does not need to detect all possible second pilot sequences, so that a quantity of detected pilots can be significantly reduced, and pilot detection complexity is reduced.

公开(公告)号：US20210045163A1

公开(公告)日：2021-02-11

申请号：US17081473

申请日：2020-10-27

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W74/08 ,  H04L27/26 ,  H04W72/04 ,  H04W76/11 ,  H04L5/00 ,  H04L1/18

Abstract: This application provides an asynchronous uplink transmission method, a device, and a storage medium. The method includes: receiving, by UE, configuration information that is of a first PUSCH and that is sent by a network device, where the configuration information includes a length of a cyclic prefix CP of the first PUSCH, and the length of the CP of the first PUSCH is less than a length of a CP of a first random access preamble; determining, by the UE based on the length of the CP of the first PUSCH, a difference between a largest stored timing advance TA and a smallest stored TA, and a largest delay spread, whether to send the first PUSCH; and if determining to send the first PUSCH, sending, by the UE, the first PUSCH based on the configuration information of the first PUSCH.