公开(公告)号：US20200008096A1

公开(公告)日：2020-01-02

申请号：US16566500

申请日：2019-09-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengchen DAI ,  Rong LI ,  Chaolong ZHANG ,  Lingchen HUANG ,  Hejia LUO

IPC: H04W28/04 ,  H04W72/04 ,  H04L27/26 ,  H04L1/00

Abstract: This application provides a wireless communication method and device. The method includes: scrambling, with each piece of configuration information of a plurality of pieces of configuration information for configuring a terminal device, bits that are included in a cyclic redundancy check (CRC) of downlink control information (DCI) and that correspond to each piece of configuration information, to obtain a scrambled sequence, where at least one bit of bits that correspond to each piece of configuration information does not correspond to another piece of configuration information of the plurality of pieces of configuration information; and sending the DCI and the scrambled sequence to the terminal device.

公开(公告)号：US20200007159A1

公开(公告)日：2020-01-02

申请号：US16566331

申请日：2019-09-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie JIN ,  Wen TONG ,  Jun WANG ,  Alexander Alexandrovich PETYUSHKO ,  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：US20200067533A1

公开(公告)日：2020-02-27

申请号：US16673589

申请日：2019-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian WANG ,  Gongzheng ZHANG ,  Hejia LUO ,  Chaolong ZHANG ,  Rong LI

IPC: H03M13/13 ,  H03M13/27 ,  H04L1/00

Abstract: This application provides a coding method and apparatus, and a device. The method includes: dividing, by a sending device, a subchannel location sequence number set into at least two mutually exclusive subsets based on an interleaving operation, where a subchannel location in each subset still belongs to the subset and does not belong to another subset after any quantity of interleaving operations are performed; determining, by the sending device, an information bit location set and a frozen bit location set of a to-be-coded polar polar code based on the at least two mutually exclusive subsets; and coding, by the sending device, the to-be-coded polar code based on the information bit location set and the frozen bit location set. The coding method and apparatus, and the device provided in this application can improve communication performance of polar coding.

公开(公告)号：US20200008099A1

公开(公告)日：2020-01-02

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 ,  H04W28/04 ,  H04L1/00

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：US20190335431A1

公开(公告)日：2019-10-31

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: H04W72/04 ,  H04L1/00

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：US20180343093A1

公开(公告)日：2018-11-29

申请号：US16053446

申请日：2018-08-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rong LI ,  Chaolong ZHANG ,  Jian WANG ,  Hejia LUO

IPC: H04L5/00 ,  H04W4/70 ,  H04W72/12

Abstract: Embodiments of this application provide a signal transmission method, including: obtaining, by a communications device, a bit group from a to-be-sent bitstream, where the bit group includes at least two bits; modulating, by the communications device, the bit group based on a codebook to obtain at least two modulated symbols; mapping, by the communications device, each of the at least two modulated symbols to a corresponding timeslot in a frame; and sending, by the communications device, the mapped at least two modulated symbols, where different modulated symbols obtained by using a same bit group are mapped to different timeslots, and each timeslot includes a plurality of continuous modulated symbol mapping locations used to map modulated symbols obtained by using a plurality of bit groups of the to-be-sent bitstream.

公开(公告)号：US20180199361A1

公开(公告)日：2018-07-12

申请号：US15914429

申请日：2018-03-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chaolong ZHANG ,  Jian WANG ,  Yunfei QIAO

IPC: H04W72/12 ,  H04W4/70

CPC classification number: H04W72/1268 ,  H04L5/0033 ,  H04L5/0048 ,  H04W4/70 ,  H04W72/02 ,  H04W72/042 ,  H04W74/00 ,  H04W74/08 ,  H04W74/0825

Abstract: The invention discloses a data transmission method and apparatus. The method determines a target CTU from multiple candidate CTUs according to a first partial identifier in a terminal device identifier, where the terminal device identifier includes the first partial identifier and a second partial identifier. The method sends an uplink data packet to a network device by using the target CTU, where the uplink data packet carries the second partial identifier. According to the data transmission method and apparatus disclosed, the first partial identifier in the terminal device identifier can be implicitly indicated to reduce signaling overheads of a system.