公开(公告)号：US11296726B2

公开(公告)日：2022-04-05

申请号：US16923841

申请日：2020-07-08

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：US20210392703A1

公开(公告)日：2021-12-16

申请号：US17459544

申请日：2021-08-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chenlei Xu ,  Jianwei Zhou ,  Hejia Luo ,  Jun Wang

IPC: H04W74/08 ,  H04J13/00 ,  H04L27/26

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：US20210377916A1

公开(公告)日：2021-12-02

申请号：US17402095

申请日：2021-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoli Shi ,  Wenjie Peng ,  Jun Wang ,  Mingzeng Dai ,  Qinghai Zeng

IPC: H04W72/02 ,  H04W72/10 ,  H04W72/08 ,  H04W72/12 ,  H04W24/10

Abstract: This application provides a wireless communications method and apparatus, which may be applied to a V2X scenario. The wireless communications method includes: A first device receives configuration information sent by a first access device, where the configuration information is used to indicate at least one resource pool used for inter-device communication, and the resource pool includes a plurality of resources; and the first device sends a measurement report to the first access device.

公开(公告)号：US11184770B2

公开(公告)日：2021-11-23

申请号：US16601130

申请日：2019-10-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun Wang

IPC: H04W12/08 ,  H04W48/02 ,  H04W48/08 ,  H04L29/06 ,  H04W48/14

Abstract: Embodiments of the present invention disclose a wireless network access control method, device, and computer readable medium. The method includes: receiving via a mobile network an access request sent by a user device for requesting Internet access by using a wireless network of a wireless access device after a sharing status of the wireless network is set to be enabled by a setting device; and performing control processing to allow the user device to access the Internet by using the wireless network, such that the wireless access device processes Internet data related to the user device via the wireless network after the user device accesses the Internet by using the wireless network.

公开(公告)号：US11165535B2

公开(公告)日：2021-11-02

申请号：US16838945

申请日：2020-04-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun Wang ,  Gongzheng Zhang ,  Huazi Zhang ,  Chen Xu ,  Lingchen Huang ,  Shengchen Dai ,  Hejia Luo ,  Yunfei Qiao ,  Rong Li ,  Jian Wang ,  Ying Chen ,  Nikita Polianskii ,  Mikhail Kamenev ,  Zukang Shen ,  Yourui HuangFu ,  Yinggang Du

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/09 ,  H03M13/29 ,  H03M13/00

Abstract: This application relates to the field of wireless communications technologies, and discloses an encoding method and apparatus, to improve accuracy of reliability calculation and ordering for polarized channels. The method includes: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the first sequence is same as a second sequence or a subset of the second sequence, the second sequence comprises sequence numbers of Nmax, polarized channels, and the second sequence is the sequence shown in Sequence Q11 or Table Q11, K is a positive integer, N is a positive integer power of 2, n is equal to or greater than 5, K≤N, Nmax=1024; selecting sequence numbers of K polarized channels from the first sequence; and performing polar code encoding on K the to-be-encoded bits based on the selected sequence numbers of the K polarized channels.

公开(公告)号：US11165534B2

公开(公告)日：2021-11-02

申请号：US16683470

申请日：2019-11-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chen Xu ,  Gongzheng Zhang ,  Jun Wang ,  Guijie Wang ,  Yunfei Qiao ,  Yinggang Du

IPC: H04L1/00

Abstract: The present disclosure relates to polar code encoding methods and apparatus. One example method includes obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the sequence numbers of the N polarized channels are arranged in the first sequence based on reliability of the N polarized channels, K is a positive integer, N is a mother code length of a polar code, N is a positive integer power of 2, and K≤N, selecting sequence numbers of K polarized channels from the first sequence in descending order of reliability, placing the K to-be-encoded bits based on the selected sequence numbers of the K polarized channels, and performing polar code encoding on the K to-be-encoded bits.

公开(公告)号：US11101821B2

公开(公告)日：2021-08-24

申请号：US16673421

申请日：2019-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Gongzheng Zhang ,  Huazi Zhang ,  Chen Xu ,  Rong Li ,  Jun Wang ,  Lingchen Huang

IPC: H03M13/13 ,  H04L1/18

Abstract: A method for polar encoding includes: receiving a message including information bits; encoding the message using a first polar code to obtain a first codeword; and encoding the message using a second polar code to obtain a second codeword. The second codeword includes two parts, and the first part of the second codeword is same as the first codeword. The method for polar encoding also includes transmitting the first codeword to a receiver in a first transmission; and transmitting the second part of the second codeword in a second transmission without transmitting the first part of the second codeword when the receiver is unable to decode the message based on the first codeword.

公开(公告)号：US11050510B2

公开(公告)日：2021-06-29

申请号：US16423172

申请日：2019-05-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hejia Luo ,  Gongzheng Zhang ,  Rong Li ,  Huazi Zhang ,  Yourui Huangfu ,  Jian Wang ,  Ying Chen ,  Jun Wang

IPC: H04L1/00 ,  H03M13/13 ,  H04L29/08 ,  H04L1/08 ,  H03M13/00 ,  H03M13/09

Abstract: Embodiments provide a Polar code transmission method and apparatus. A bit sequence is encoded into a code sequence using Polar code by a network device. The bit sequence contains a control signaling and a Cyclic Redundancy Code (CRC) sequence. The code sequence is transformed into M copies such that an ith information copy of the M copies multiples by a first matrix of the power of (i−1). M is an integer and M>0. M copies of codeword was encoded by Polar code, the M copies implicitly conveys different time stamp information, which is suitable for the transmission of PBCH in 5G communication system, signaling overhead is also reduced.

公开(公告)号：US11005504B2

公开(公告)日：2021-05-11

申请号：US16665294

申请日：2019-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying Chen ,  Gongzheng Zhang ,  Huazi Zhang ,  Yue Zhou ,  Yunfei Qiao ,  Hejia Luo ,  Rong Li ,  Jun Wang

IPC: H03M13/00 ,  H03M13/13

Abstract: The embodiments of the application provides a polar code rate matching method and apparatus. The method includes: obtaining, by a communications device, to-be-encoded information; determining, by the communications device, a to-be-used rate matching manner based on the code rate, a code rate threshold, a target code length, and a target code length threshold, where the rate matching manner is a puncturing manner or a shortening manner; and rate matching, by the communications device based on the determined rate matching manner, a polar code of the to-be-encoded information.

公开(公告)号：US20210103759A1

公开(公告)日：2021-04-08

申请号：US17126908

申请日：2020-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun Chai ,  Jun Wang ,  Jingwei Zhou ,  Jiong Deng

IPC: G06K9/46 ,  G06K9/62 ,  G06F16/51 ,  H04L29/08 ,  H04W64/00

Abstract: A database construction method includes determining a target image set that meets a preset image coincidence degree requirement, obtaining a scenario key point information set based on the target image set and natural condition information corresponding to each image, determining, in the scenario key point information set, first scenario key point information corresponding to a scenario key point whose life value on a single mobile terminal is greater than a first preset life value threshold, determining, in the first scenario key point information, second scenario key point information corresponding to a scenario key point whose life value on a plurality of mobile terminals is greater than a second preset life value threshold, and when the second scenario key point information does not match preset scenario key point information in a database, constructing the database based on the second scenario key point information.