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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.
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.
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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
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.
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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
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.
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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
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.
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公开(公告)号：US20210293564A1
公开(公告)日：2021-09-23
申请号：US17334076
申请日：2021-05-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jiong Deng , Jun Wang , Jingwei Zhou , Chenguang Chen , Zuqi Liu , Yulong Luo , Jie Wang
Abstract: A high-definition map building method includes determining a key node describing information about a key position of a lane attribute change, determining a key node layer based on a position of the key node and an attribute of the key node, and determining a high-definition map based on a navigation map and the key node layer. The navigation map provides road-level navigation information, and the high-definition map provides lane-level navigation information.
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Patent Agency Ranking
公开(公告)号：US11088709B2
公开(公告)日：2021-08-10
申请号：US16569301
申请日：2019-09-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yourui Huangfu , Gongzheng Zhang , Chaolong Zhang , Rong Li , Jun Wang
Abstract: A polar code encoding method and apparatus are provided. The method includes: obtaining a basic sequence, where the basic sequence is a sequence obtained by sorting sequence numbers of polarized channels in descending order or ascending order of reliability, and a length of the basic sequence is L1; determining, based on a maximum encoding length L2 supported by a receiving device, a quantity M of segments of an information bit sequence whose length is N after encoding, where a quantity of bits in the information bit sequence before the encoding is K; and performing polar code encoding on the M segments based on the basic sequence. According to the polar code encoding method, during polar code construction, an encoding device needs to know only a reliability order of min(N/M, L1) polarized channels. In this way, storage overheads of a nested sequence can be effectively reduced, and online computing complexity can be reduced.
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公开(公告)号：US11063608B2
公开(公告)日：2021-07-13
申请号：US16661931
申请日：2019-10-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Xiaocheng Liu , Lingchen Huang , Yue Zhou , Rong Li , Hejia Luo , Jun Wang
Abstract: A polar code coding/decoding method, a sending device, and a receiving device are disclosed. The method includes: selecting, by a sending device, K non-punctured-position sequence numbers as a reference sequence number set based on a quantity K of information bits and a reliability-based order of N polarized channels of a polar code whose code length is N, where a reliability of a polarized channel corresponding to any sequence number in the reference sequence number set is greater than or equal to reliabilities of polarized channels corresponding to remaining (N−K) sequence numbers; determining, by the sending device, an information-bit sequence number set based on a determining condition and the reference sequence number set; and performing, by the sending device, polar coding on to-be-coded bits based on the information-bit sequence number set.
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公开(公告)号：US20210195666A1
公开(公告)日：2021-06-24
申请号：US17193518
申请日：2021-03-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haiyan Luo , Mingzeng Dai , Jun Wang
Abstract: An RRC connection method, including generating, by a first terminal, a first RRC message, and sending, by the first terminal, a first indication and first data to a second terminal through a first path, where the first path is a wireless communications interface between the first terminal and the second terminal, the first data includes the first RRC message, and the first indication is used to indicate the second terminal to send the first RRC message to a radio access network device.
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公开(公告)号：US10986546B2
公开(公告)日：2021-04-20
申请号：US15829313
申请日：2017-12-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xuelong Wang , Jun Wang , Ying Huang , Peter Legg , Johan Johansson
Abstract: A method, an apparatus, and a system for detecting a radio network problem are disclosed. The method includes: when a radio network problem occurs on a user equipment (UE), a first base station controlling a cell that a radio resource control (RRC) connection established with the UE, receives problem information about the radio network problem sent by the UE, in a procedure of re-establishing the RRC connection by the UE, and sends the problem information to a second base station controlling a cell where the radio network problem occurs.
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公开(公告)号：US10979076B2
公开(公告)日：2021-04-13
申请号：US16572163
申请日：2019-09-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Rong Li , Huazi Zhang , Jian Wang , Jun Wang
Abstract: A method includes: obtaining a first sequence corresponding to a basic code length N0; determining N to-be-encoded bits, where the N to-be-encoded bits include N2 fixed bits, and N is greater than the basic code length N0; extending the first sequence to obtain a second sequence; determining locations of the N2 fixed bits in the N to-be-encoded bits based on polar channel serial numbers indicated by first N2 elements in the second sequence; and performing polar encoding on the N to-be-encoded bits to obtain encoded bits. The locations of the fixed bits in the N to-be-encoded bits are determined based on the second sequence, and the second sequence is obtained by extending the first sequence corresponding to the basic code length N0.
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