公开(公告)号：US12278702B2

公开(公告)日：2025-04-15

申请号：US18485303

申请日：2023-10-11

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 Andreevich Polianskii ,  Mikhail Sergeevich Kamenev ,  Zukang Shen ,  Yourui HuangFu ,  Yinggang Du

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

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：US20240235662A9

公开(公告)日：2024-07-11

申请号：US18400101

申请日：2023-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingwei Zhang ,  Tianhang Yu ,  Hejia Luo ,  Shengchen Dai ,  Yunfei Qiao ,  Rong Li ,  Jun Wang

IPC: H04B7/185

CPC classification number: H04B7/18532

Abstract: This application discloses a NB-IoT-based communication method and an apparatus, to evolve a NB-IoT communication technology into an NTN. The method is as follows: A terminal device generates an uplink signal, including a superframe which includes a synchronization sequence located in first duration of the superframe and a data frame located in second duration which is after the first duration, the synchronization sequence successively includes a first sequence repeated Ni times and a second sequence repeated N2 times, the second sequence is obtained by multiplying the first sequence by −1, a part of consecutive sequences of the synchronization sequence are used as a first synchronization reference sequence that is obtained based on the second sequence repeated N2 times and one or more first sequences that are sorted from back to front in the first sequence repeated N1 times. The terminal device sends the uplink signal to a network device.

公开(公告)号：US20230261676A1

公开(公告)日：2023-08-17

申请号：US18301724

申请日：2023-04-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xianbin Wang ,  Huazi Zhang ,  Rong Li ,  Jiajie Tong ,  Shengchen Dai ,  Jun Wang

IPC: H03M13/45

CPC classification number: H03M13/451

Abstract: A decoding method includes: decoding first to-be-decoded information based on a first decoder to obtain a first decoding result that includes first soft information or a first hard output; and correcting the first decoding result based on a first correction model to obtain a corrected first decoding result of the first to-be-decoded information. The first correction model is obtained through training based on training data that includes a training decoding result and a corrected training decoding result. The training decoding result is a decoding result obtained after the first decoder decodes training to-be-decoded information, and the corrected training decoding result is a corrected decoding result corresponding to the training decoding result. In this way, after a decoder performs decoding, a decoding result can be corrected based on a correction model.

公开(公告)号：US20230208554A1

公开(公告)日：2023-06-29

申请号：US18170980

申请日：2023-02-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xianbin Wang ,  Jiajie Tong ,  Huazi Zhang ,  Shengchen Dai ,  Rong Li ,  Jun Wang

IPC: H04L1/00

CPC classification number: H04L1/0052

Abstract: Encoding methods and apparatuses are provided. The method includes: obtaining to-be-encoded information including K information bits and a mother code length N; determining, based on K and N, a set I corresponding to subchannels of the information bits, where information bits corresponding to subchannel sequence numbers in I are distributed in X outer-code subcodes including X1 first-type outer-code subcodes, quantities of information bits in the X1 first-type outer-code subcodes are P1, P2, . . . , and PX1, Pi (i=1, 2, . . . , X1) is one of K1, K2, . . . , and Km, which are greater than a first threshold LB and less than a second threshold HB, 1= =0; and performing encoding based on I.

公开(公告)号：US11690091B2

公开(公告)日：2023-06-27

申请号：US17215243

申请日：2021-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huazi Zhang ,  Ming Jia ,  Rong Li ,  Jian Wang ,  Xianbin Wang ,  Shengchen Dai ,  Jun Wang ,  Yiqun Ge ,  Yan Chen ,  Jianglei Ma

IPC: H04W72/00 ,  H04W72/541 ,  H04L1/00 ,  H04L5/00 ,  H04W72/121

CPC classification number: H04W72/541 ,  H04L1/001 ,  H04L1/0004 ,  H04L5/0037 ,  H04W72/121

Abstract: A resource mapping method and apparatus and a resource mapping indication method and apparatus are provided to adapt to an interference cancellation function of a receiver. According to the method, a network device obtains a mapping mode used for resource mapping during uplink transmission, and sends, to a terminal, information indicating the mapping mode. The mapping mode is used to indicate mapping locations of a plurality of modulation symbols in a resource mapping block (RMB), the RMB comprises a plurality of resource elements (REs), and at least one of the plurality of REs carries at least two modulation symbols.

公开(公告)号：US11523328B2

公开(公告)日：2022-12-06

申请号：US16523684

申请日：2019-07-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lingchen Huang ,  Yunfei Qiao ,  Rong Li ,  Guijie Wang ,  Shengchen Dai ,  Zukang Shen

IPC: H04W48/08 ,  H04L5/00 ,  H04W72/04

Abstract: A method and device are provided for encoding a master information block (MIB), where the MIB includes indication information, the indication information is used by a terminal device to determine a decoding mode for decoding first information, and the first information includes at least one of a system information block (SIB) 1 and system information (SI); and sending an encoded MIB to the terminal device. The terminal device can determine a correct decoding mode for the SIB and the SI according to the indication information before receiving the SIB and the SI, and then the terminal device can decode the SIB and the SI in the correct decoding mode after receiving the SIB and the SI. The terminal device can flexibly decode the SIB and the SI.

公开(公告)号：US20220224441A1

公开(公告)日：2022-07-14

申请号：US17704869

申请日：2022-03-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shengchen Dai ,  Jiajie Tong ,  Zhan Yu ,  Kai Fu ,  Rong Li ,  Jun Wang

IPC: H04L1/00

Abstract: This application discloses a method: determining, based on a length of to-be-encoded information bits and a code rate, a code length N after encoding; determining, based on N, a minimum segment code length, and a maximum segment code length, a reserved segment quantity of each type of segments in segments of b−a+1 types of segment code lengths and a reserved code length corresponding to N, where the minimum segment code length is 2{circumflex over ( )}a, and the maximum segment code length is 2{circumflex over ( )}b; determining a segment quantity of each type of segments based on N, the reserved code length, a segment code length of each type of segments, and the reserved segment quantity of each type of segments, where N corresponds to S segments, and a segment code length of an ith segment in the S segments is greater than or equal to a segment code length of an (i+1)th segment in the S segments.

公开(公告)号：US11240709B2

公开(公告)日：2022-02-01

申请号：US16571161

申请日：2019-09-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei Qiao ,  Chaolong Zhang ,  Jian Wang ,  Shengchen Dai ,  Rong Li

IPC: H04W28/06 ,  H04L1/00 ,  H04W28/04

Abstract: Embodiments provide a data transmission method and a related device. Under the method, after determining a first data packet to be sent to a receive end, a transmit end may generate a second data packet based on the first data packet, encode the second data packet, and send an encoded second data packet. A length of the second data packet is greater than a length of the first data packet. In various embodiments, when sending a data packet to the receive end, the transmit end may generate a longer data packet from a shorter data packet through combination, and send the longer data packet to the receive end after channel coding. In this way, a relatively high channel coding gain can be obtained during data transmission, and a relatively high bit error rate of short packet transmission is avoided, so that data transmission reliability can be improved.

公开(公告)号：US11171741B2

公开(公告)日：2021-11-09

申请号：US16685366

申请日：2019-11-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zukang Shen ,  Yunfei Qiao ,  Rong Li ,  Hejia Luo ,  Shengchen Dai

IPC: H04L1/00

Abstract: Example polar code-based transmission methods and apparatus are provided, to apply polar encoding to a physical broadcast channel (PBCH). One example method includes performing polar encoding on a to-be-encoded first bit sequence by a transmit end to generate an encoded sequence. The transmit end performs a transformation operation on the encoded sequence to obtain a second bit sequence, where the transformation operation includes at least one of scrambling, interleaving, or reordering. The transmit end sends the second bit sequence in M inconsecutive time units, where at least two time intervals between the time units in the M inconsecutive time units are unequal.

公开(公告)号：US11025366B2

公开(公告)日：2021-06-01

申请号：US16749848

申请日：2020-01-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lingchen Huang ,  Shengchen Dai ,  Chen Xu ,  Yunfei Qiao ,  Rong Li

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

Abstract: This application provides an encoding method and apparatus in wireless communications between a network device and a terminal. 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 A information bits, L=11; and performing polar encoding on the first bit sequence.