-
公开(公告)号:US11933627B2
公开(公告)日:2024-03-19
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
CPC classification number: G01C21/367 , G01C21/3811 , G01C21/3815 , G01C21/3874 , G01C21/3878
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.
-
公开(公告)号:US11889563B2
公开(公告)日:2024-01-30
申请号:US17459544
申请日:2021-08-27
Applicant: Huawei Technologies Co., Ltd.
Inventor: Chenlei Xu , Jianwei Zhou , Hejia Luo , Jun Wang
CPC classification number: H04W74/0841 , H04J13/0062 , H04L27/2607 , H04L27/2663
Abstract: This application provides a random access method and an apparatus. The method includes: receiving, by a terminal device, a broadcast signal; and sending, by the terminal device, a random access signal, where a preamble sequence in the random access signal includes K first symbols and Q second symbols, the first symbol and the second symbol are different from each other, K and Q are integers greater than or equal to 1, K+Q=NSEQ, and NSEQ is a quantity of symbols included in the preamble sequence.
-
公开(公告)号:US11889180B2
公开(公告)日:2024-01-30
申请号:US17420939
申请日:2019-12-13
Applicant: Huawei Technologies Co., Ltd.
Inventor: Tao Shen , Jun Wang , Yang Li , Yanpeng Ma
IPC: H04N23/63 , G06V10/74 , H04N23/611
CPC classification number: H04N23/632 , G06V10/761 , H04N23/611
Abstract: A photographing method and an electronic device are provided, so that a to-be-photographed target can continue to be tracked after the to-be-photographed target returns to a shooting image, to improve accuracy of focusing performed during photographing of a moving object. The method includes: displaying a first image including a first object and a tracking indicator that is associated with the first object, the tracking indicator indicating that the first object is a tracked target; displaying a second image that does not include the first object or the tracking indicator; displaying a third image including the first object; automatically setting the first object as the tracked target and displaying the tracking indicator associated with the first object; and automatically focusing on the first object when displaying the third image.
-
公开(公告)号:US20230387939A1
公开(公告)日:2023-11-30
申请号:US18366757
申请日:2023-08-08
Applicant: Huawei Technologies Co., Ltd.
Inventor: Huazi Zhang , Wen Tong , Jun Wang , Rong Li , Jiajie Tong , Xianbin Wang
IPC: H03M13/11
CPC classification number: H03M13/118 , H03M13/1174
Abstract: A sending device may obtain a first to-be-encoded vector. The sending device may perform first encoding on the first to-be-encoded vector, to obtain a second to-be-encoded vector. The sending device may encode the second to-be-encoded vector based on a first generator matrix, to obtain an encoded codeword. The first generator matrix may include at least N+1 submatrices a, and N of the submatrices a may be located on a main diagonal of the first generator matrix. The first generator matrix may be a block upper triangular matrix, or the first generator matrix may be a block lower triangular matrix. The submatrix a is a polar kernel matrix with a size of 2m*2m, m is a natural number, and N is a natural number. The sending device may send the encoded codeword.
-
公开(公告)号:US20230319751A1
公开(公告)日:2023-10-05
申请号:US18301038
申请日:2023-04-14
Applicant: Huawei Technologies Co., Ltd.
Inventor: Ying Chen , Jianwei Zhou , Chenlei Xu , Hejia Luo , Jun Wang
IPC: H04W56/00
CPC classification number: H04W56/0045
Abstract: An uplink signal sending and receiving method includes that a first communication apparatus obtains a first timing advance (TA) change rate, and sends an uplink signal in a plurality of first time periods. There is a first time interval between the plurality of first time periods to compensate for a time synchronization drift. A length of the first time interval and a location of the first time interval between the plurality of first time periods are determined based on the first TA change rate, and the first TA change rate is a TA change rate in a communication process of the first communication apparatus.
-
公开(公告)号:US20230308219A1
公开(公告)日:2023-09-28
申请号:US18041780
申请日:2021-02-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Ying Chen , Hejia Luo , Yunfei Qiao , Rong Li , Jun Wang
IPC: H04L1/1812
CPC classification number: H04L1/1812
Abstract: Embodiments of this application disclose a data transmission method, apparatus, and system, and relate to the communication field. This can flexibly configure a HARQ process to improve a data transmission throughput. A specific solution is: A network device sends a first transport block and a first identifier to a terminal. The first identifier is used to indicate whether to switch, from non-hybrid automatic repeat request HARQ transmission to HARQ transmission, a HARQ process in which the first transport block is located. The first identifier is occupied when the HARQ process uses the HARQ transmission. The terminal receives the first transport block and the first identifier from the network device. The first identifier is used to indicate whether to switch, from the non-hybrid automatic repeat request HARQ transmission to the HARQ transmission, the HARQ process in which the first transport block is located.
-
公开(公告)号:US20230308117A1
公开(公告)日:2023-09-28
申请号:US18176217
申请日:2023-02-28
Applicant: Huawei Technologies Co., Ltd.
Inventor: Huazi Zhang , Xianbin Wang , Jiajie Tong , Shengchen Dai , Rong Li , Jun Wang
CPC classification number: H03M13/152 , H03M13/616 , H03M13/6362
Abstract: An encoding method and apparatus are provided, to propose a construction and encoding scheme of a BCH code. A code length and a code rate of an obtained BCH code are flexible, to satisfy a requirement of flexible channel encoding in wireless communication. The method includes determining a first encoding parameter based on a first BCH code, where the first BCH code is a to-be-coded BCH code, the first encoding parameter is a first code or a generator matrix of a first code, the first code has a code length of n and an information bit length of k, n is greater than o, and k is greater than o, and performing BCH encoding based on the first encoding parameter.
-
88.
公开(公告)号:US20230299792A1
公开(公告)日:2023-09-21
申请号:US18185998
申请日:2023-03-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Jie Jin , Wen Tong , Jun Wang , Aleksandr Aleksandrovich Petiushko , Ivan Leonidovich Mazurenko , Chaolong Zhang
CPC classification number: H03M13/1148 , H03M13/616 , H04L1/005 , H04L1/0061
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:US20230283406A1
公开(公告)日:2023-09-07
申请号:US18186912
申请日:2023-03-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Xianbin Wang , Shengchen Dai , Huazi Zhang , Jiajie Tong , Rong Li , Jun Wang
IPC: H04L1/00
CPC classification number: H04L1/0057
Abstract: This application provides a coding method and apparatus. The method includes: obtaining a to-be-coded sequence whose length is N, where the to-be-coded sequence is obtained after an information bit is placed at an information bit position, a frozen bit is placed at a frozen bit position, and first preset bits are placed at a plurality of shaping bit positions in a first position sequence, bits corresponding to the plurality of shaping bit positions after polar coding belong to a plurality of different subcodes of inner code, and shaping bit positions whose corresponding bits after polar coding belong to a same subcode of inner code belong to a same group of shaping bit positions (S501); performing outer code coding on the to-be-coded sequence, to obtain a first outer code sequence whose length is N (S502); obtaining, in parallel based on the first outer code sequence, a plurality of first outer code codeword bits corresponding to a plurality of shaping bit position groups (S503); obtaining a target outer code sequence based on the first outer code sequence and the plurality of first outer code codeword bits (S504); and performing inner code coding on the target outer code sequence, to obtain and output a coded sequence (S505). PAS coding latency can be reduced.
-
公开(公告)号:US20230224843A1
公开(公告)日:2023-07-13
申请号:US18182885
申请日:2023-03-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Xiaolu Wang , Hejia Luo , Rong Li , Jun Wang
IPC: H04W56/00
CPC classification number: H04W56/005 , H04W56/0015
Abstract: Embodiments of this application provide a timing offset parameter update method, a device, and a system, and relate to the field of communication technologies, to help reduce signaling overheads generated when a network device updates a value of a timing offset parameter. The method includes: A terminal device obtains first information that includes a first reference value and first indication information, where the first indication information indicates an update rule of a timing offset parameter, and the first reference value is an initial value of the timing offset parameter. The terminal device updates a value of the timing offset parameter based on the first information and a timing offset variation, to obtain an updated value of the timing offset parameter, where an absolute value of the timing offset variation is equal to an absolute value of a difference between any two consecutively updated values of the timing offset parameter.
-
-
-
-
-
-
-
-
-