公开(公告)号：US20230089387A1

公开(公告)日：2023-03-23

申请号：US17991645

申请日：2022-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Piniwan Thiwanka Bandara Wijekoon ,  Zhaohui Wang ,  Jun Wang

IPC: H02M3/07 ,  H02M3/00 ,  H02M1/00

Abstract: A DC/DC power converter for converting voltage at an input to a voltage at an output of the DC/DC power converter is provided, wherein the output voltage is a multiple of the input voltage. The DC/DC power converter comprises two switching circuits electrically connected in series, two capacitor units electrically connected in series, and a resonant circuit comprising a resonant capacitor and a resonant inductor. A first switching circuit of the two switching circuits is electrically connected to one side of the first capacitor unit opposite to the other side of the first capacitor unit connected to the second capacitor unit of the two capacitor units. The switches of the first switching circuit are controllable semiconductor switches. The first switching circuit comprises one or more diode units electrically connecting the first capacitor unit to the two switching units of the first switching circuit.

公开(公告)号：US20230086128A1

公开(公告)日：2023-03-23

申请号：US18059211

申请日：2022-11-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiangyu Li ,  Wenjie Peng ,  Jun Wang

IPC: H04L67/1095 ,  H04W64/00 ,  H04W74/08

Abstract: In an embodiment a communication method includes receiving, by a terminal device, configuration information sent by a network device, wherein the configuration information comprises reliability information and channel busy ratio (CBR) information, wherein the reliability information comprises information indicating a reliability scope or level, and wherein the CBR information comprises information indicating a CBR scope or level, and determining, by the terminal device, a packet data convergence protocol duplication (PDCP) duplication processing operation based on service-related information and the configuration information, wherein the service-related information comprises information related to a service corresponding to a PDCP entity, and wherein the processing operation comprises an activation operation or a deactivation operation.

公开(公告)号：US11611356B2

公开(公告)日：2023-03-21

申请号：US17684144

申请日：2022-03-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Jin ,  Wen Tong ,  Jun Wang ,  Aleksandr Aleksandrovich Petiushko ,  Ivan Leonidovich Mazurenko ,  Chaolong Zhang

IPC: H03M13/11 ,  H03M13/00 ,  H04L1/00

Abstract: A low density parity check (LDPC) channel encoding method is used in a wireless communications system. A communication device encodes an input bit sequence by using an LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The base matrix may be one of eight exemplary designs. The encoding method can be used in various communications systems including fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

公开(公告)号：US20220255620A1

公开(公告)日：2022-08-11

申请号：US17729253

申请日：2022-04-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaolu Wang ,  Hejia Luo ,  Rong Li ,  Bin Wang ,  Jun Wang

IPC: H04B7/185 ,  H04W74/08 ,  H04W56/00

Abstract: This disclosure provides satellite communication methods and apparatuses. One example method includes that a terminal device determines a first time offset of a first random access response window based on a distance information between a satellite base station and the ground. Based on the first time offset and the first random access response window, the terminal device receives a random access response sent by the satellite base station.

公开(公告)号：US11374682B2

公开(公告)日：2022-06-28

申请号：US16693865

申请日：2019-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huazi Zhang ,  Jiajie Tong ,  Rong Li ,  Jun Wang ,  Wen Tong ,  Yiqun Ge ,  Xiaocheng Liu

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/00 ,  H03M13/11

Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. In one example, an embodiment technique includes allocating, from a set of sub-channels, one or more sub-channels for one or more parity bits based on row weights for sub-channels in a subset of sub-channels within the set of sub-channels, mapping information bits to remaining sub-channels in the set of sub-channels based on a reliability of the remaining sub-channels without mapping any of the information bits to the one or more sub-channels allocated for the one or more parity bits, polar encoding the information bits and the one or more parity bits based on at least the mapping of the information bits to the remaining sub-channels to obtain encoded bits, and transmitting the encoded bits to another device.

公开(公告)号：US20220173840A1

公开(公告)日：2022-06-02

申请号：US17651150

申请日：2022-02-15

Applicant: Huawei Technologies Co, Ltd.

Inventor： Jun Wang ,  Wenjie Peng ,  Mingzeng Dai ,  Junren Chang

IPC: H04L1/18 ,  H04L5/00 ,  H04W72/10 ,  H04W72/04

Abstract: This application provides a hybrid automatic repeat request HARQ feedback information transmission method and an apparatus, to flexibly determine a feedback manner type. The method includes: A first terminal device obtains a transmission resource, determines, based on a first correspondence, a feedback manner type corresponding to a current transmission, performs data packet assembly processing based on the feedback manner type, and sends the data packet by using the transmission resource.

公开(公告)号：US20220159169A1

公开(公告)日：2022-05-19

申请号：US17440538

申请日：2020-02-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Tang ,  Jun Wang

IPC: H04N5/235 ,  H04N13/257 ,  H04N5/225 ,  H04N5/58

Abstract: A camera assembly includes an infrared laser system, a camera, a flicker detector, and a light-filtering piece. The infrared laser system has an out-light surface. Infrared emitted by the infrared laser system propagates outside of the camera assembly through the out-light surface. The out-light surface of the infrared laser system, an in-light surface of the camera, and an in-light surface of the flicker detector face a same direction and are staggered from each other. The light-filtering piece covers the in-light surface of the flicker detector and is configured to filter out infrared. The flicker detector is configured to detect a frequency of visible light in external light filtered by the light-filtering piece. When the camera assembly is applied to an electronic device, photographing performance of the electronic device is good.

公开(公告)号：US11296724B2

公开(公告)日：2022-04-05

申请号：US16811934

申请日：2020-03-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shengchen Dai ,  Lingchen Huang ,  Gongzheng Zhang ,  Yunfei Qiao ,  Chen Xu ,  Jun Wang ,  Rong Li

IPC: H03M13/09 ,  H03M13/15 ,  H04L1/00

Abstract: This application provides an encoding method and apparatus in a wireless communications system. The method includes: performing cyclic redundancy check (CRC) encoding on A to-be-encoded information bits based on a CRC polynomial, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and the A information bits; and performing polar encoding on the first bit sequence, where L has a value of one of 3, 4, 5, 8, and 16. Based on an improved CRC polynomial, coding satisfying a false alarm rate (FAR) requirement is implemented.

公开(公告)号：US11197281B2

公开(公告)日：2021-12-07

申请号：US16503607

申请日：2019-07-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD

Inventor： Jian Wang ,  Jun Wang ,  Rong Li ,  Huazi Zhang ,  Chaolong Zhang

IPC: H04L1/00 ,  H04W72/04

Abstract: Embodiments of the present invention provide a control information transmission method and apparatus. The control information transmission method includes: determining, by a network device, N pieces of to-be-jointly-coded downlink control information DCI, where N is an integer greater than or equal to 2; coding, by the network device, the N pieces of DCI in a polar coding manner, to obtain one codeword; and mapping, by the network device, the codeword to a time-frequency resource of a downlink control channel for sending. According to the embodiments of the present invention, not only a relatively high coding gain can be obtained, but a relatively low average processing latency on a decoder side can also be obtained.

公开(公告)号：US20210325190A1

公开(公告)日：2021-10-21

申请号：US17357229

申请日：2021-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Minzhen Li ,  Lei Ma ,  Jun Wang

IPC: G01C21/30 ,  G01S13/89

Abstract: A positioning method includes calculating, based on data that is of collection points at a road edge and that is collected by a radar, a feature of a road on which a terminal device is actually located, determining, from a plurality of candidate roads based on the feature of the road on which the terminal device is actually located and features of the plurality of candidate roads, a target road matching original positioning coordinates of the terminal device, and correcting the original positioning coordinates using the target road, to obtain corrected positioning coordinates.