公开(公告)号：US10986621B2

公开(公告)日：2021-04-20

申请号：US16069289

申请日：2017-03-09

Applicant: ZTE CORPORATION

Inventor： Jun Xu ,  Bo Dai ,  Jin Xu ,  Zewei Chen ,  Huiying Fang

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04L27/26

Abstract: Disclosed are a method, device and system for determining a coding modulation parameter. The method includes: a terminal receives downlink control information from a base station, and determines a coding modulation parameter according to a domain, within the downlink control information, used for determining the coding modulation parameter. In the present invention, a coding modulation parameter is determined according to a domain, within downlink control information, used for determining the coding modulation parameter, thereby implementing coding modulation parameter determination for an NB-IOT system.

公开(公告)号：US09986534B2

公开(公告)日：2018-05-29

申请号：US14889861

申请日：2014-04-14

Applicant: ZTE CORPORATION

Inventor： Zewei Chen ,  Bo Dai ,  Jun Xu ,  Jin Xu ,  Wei Gou ,  Zhisong Zuo

IPC: H04W4/00 ,  H04W72/02 ,  H04L1/00 ,  H04L5/00 ,  H04W72/04 ,  H04L1/16

CPC classification number: H04W72/02 ,  H04L1/0016 ,  H04L1/1671 ,  H04L5/0023 ,  H04L5/005 ,  H04W72/042

Abstract: The present document provides a method for determining transport block size (TBS), a base station and a terminal, including: a terminal receives downlink control signaling transmitted by a base station, obtains a combination of I′TBS and N′PRB, {ITBS, N′PRB}, and selects a mapping way to determine transport block size according to {I′TBS, N′PRB}, wherein, the mapping way includes at least one of following rules: a first rule, using high-layer TBS to obtain low-layer TBS according to I′TBS, N′PRB}; a second rule, obtaining TBS according to the {I′TBS, N′PRB} and a mapping relationship table pre-created; a third rule, determining a mapping factor according to the {I′TBS, N′PRB}, obtaining {ITBS, NPRB} according to the {I′TBS, N′PRB} and mapping factor, then determining TBS according to the {ITBS, NPRB} and a related {ITBS, NPRB} and TBS mapping relationship table, wherein the mapping factor is a real number greater than 0.

公开(公告)号：US20160112170A1

公开(公告)日：2016-04-21

申请号：US14894652

申请日：2014-04-16

Applicant: ZTE CORPORATION

Inventor： Yu Ngok Li ,  Jin Xu ,  Jun Xu ,  Liujun Hu

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L25/0204 ,  H04L25/0226

Abstract: Disclosed are a method, apparatus and system for data transmission in a downlink virtual multi-antenna system. The method includes: N terminals receive downlink data and/or downlink Demodulation Reference Signals (DMRSs) from one Node B or multiple Nodes B, N being a positive integer larger than or equal to 2; and one terminal in the N terminals forwards the downlink data and/or downlink DMRSs received from the one Node B or multiple Nodes B to M terminal(s), M being a positive integer larger than or equal to 1. A first forwarding unit of the apparatus is configured to forward received downlink data and/or downlink DMRSs of a Node B to M terminal(s) by one terminal in N terminals, M being a positive integer larger than or equal to 1.

Abstract translation: 公开了一种用于下行链路虚拟多天线系统中的数据传输的方法，装置和系统。 该方法包括：N个终端从一个节点B或多个节点B，N为大于或等于2的正整数接收下行链路数据和/或下行链路解调参考信号（DMRS）; 并且N个终端中的一个终端将从一个节点B或多个节点B接收的下行链路数据和/或下行链路DMRS转发到M个终端，M是大于或等于1的正整数。第一转发单元 该装置被配置为将N个终端中的一个终端的节点B的接收的下行链路数据和/或下行链路DMRS转发到M个终端，M是大于或等于1的正整数。

公开(公告)号：US12155518B2

公开(公告)日：2024-11-26

申请号：US18014936

申请日：2021-07-01

Applicant: ZTE CORPORATION

Inventor： Yu Xin ,  Tong Bao ,  Jian Hua ,  Guanghui Yu ,  Liujun Hu ,  Jin Xu

IPC: H04L27/26 ,  G06F17/18

Abstract: A data modulation method, a communication device and a storage medium are disclosed. The data modulation method includes, performing a preset modulation operation on B consecutive data blocks, and configuring the B consecutive data blocks to have a same head-end reference signal sequence and/or a same tail-end reference signal sequence, inserting Z zeros between adjacent time domain data of the B consecutive data blocks; performing a filtering operation on the B consecutive data blocks into which Z zeros have been inserted, and transmitting the filtered data on a physical resource, where B is greater than or equal to 2 (i.e., B≥2), and Z is greater than or equal to 0 (i.e., Z≥0).

公开(公告)号：US12155515B2

公开(公告)日：2024-11-26

申请号：US17864254

申请日：2022-07-13

Applicant: ZTE Corporation

Inventor： Yu Xin ,  Tong Bao ,  Jin Xu ,  Guanghui Yu ,  Liujun Hu

IPC: H04L27/26 ,  H04L1/00

Abstract: Methods, apparatus, and systems for increasing spectral efficiency for transmissions with different numerologies. In one example aspect, a wireless communication method. The method includes operating, by a communication device, a first transmission band associated with a first numerology. The first transmission band comprises a first subcarrier spacing Δf1 and a first symbol length of T1 in time domain. The method includes operating, by the communication device, a second transmission band associated with a second numerology. The second transmission band comprises a second subcarrier spacing Δf2. The method also includes operating, by the communication device, a third transmission band positioned between the first transmission band and the second transmission band. The third transmission band comprises a subcarrier spacing equal to the second subcarrier spacing Δf2 and a symbol length equal to the first symbol length T1.

公开(公告)号：US20240259035A1

公开(公告)日：2024-08-01

申请号：US18629536

申请日：2024-04-08

Applicant: ZTE Corporation

Inventor： Mengzhu Chen ,  Jin Xu ,  Jun Xu

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

CPC classification number: H03M13/635 ,  H03M13/13 ,  H03M13/2792

Abstract: Provided is a rate matching method and device for a Polar code. The method includes: concatenating K information bits and (N−K) frozen bits to generate a bit sequence of N bits, and encoding the bit sequence of N bits by means of a Polar code encoder with a generator matrix of size N×N to generate an initial bit sequence {S0, S1, . . . , SN−1} of N bits, where K and N are both positive integers and K is less than or equal to N; dividing a circular buffer into q parts, selecting bits from the initial bit sequence {S0, S1, . . . , SN−1} in a non-repeated manner, and writing the bits into the q parts of the circular buffer according to a predefined rule, where q=1, 2, 3 or 4; and sequentially selecting a bit sequence of a specified length from a predefined starting position in a bit sequence in the circular buffer and taking the bit sequence of the specified length as a bit sequence to be transmitted.

公开(公告)号：US12052095B2

公开(公告)日：2024-07-30

申请号：US17971006

申请日：2022-10-21

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Zhisong Zuo ,  Hao Wu ,  Yu Xin ,  Luanjian Bian ,  Jin Xu

IPC: H04L1/00 ,  H04W28/06

CPC classification number: H04L1/0002 ,  H04L1/0015 ,  H04W28/06 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0016

Abstract: Provided are a data communication processing method and device. The method includes: acquiring a modulation order and a target code rate; calculating an intermediate number Ninfo of information bits at least according to a total number of resource elements, the modulation order and the target code rate; quantizing the intermediate number Ninfo of the information bits to obtain the quantized intermediate number N′info; determining a transport block size (TBS) according to the quantized intermediate number N′info.

公开(公告)号：US11843394B2

公开(公告)日：2023-12-12

申请号：US17843677

申请日：2022-06-17

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Jin Xu

IPC: H03M13/00 ,  H03M13/11

CPC classification number: H03M13/116 ,  H03M13/616

Abstract: Provided are a processing method and device for quasi-cyclic low density parity check (LDPC) coding. The processing method for LDPC coding includes: determining, according to a data feature of an information bit sequence to be encoded, a processing strategy for the quasi-cyclic LDPC coding according to a data feature of an information bit sequence to be encoded; and performing, according to the processing strategy and based on a base matrix and a lifting size, the quasi-cyclic LDPC coding and rate matching output on the information bit sequence according to the processing strategy, a base matrix and a lifting value. This technical solution is able to improve adaptability and flexibility of the quasi-cyclic LDPC coding.

公开(公告)号：US11791933B2

公开(公告)日：2023-10-17

申请号：US17588056

申请日：2022-01-28

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Jin Xu

IPC: H04L1/00 ,  H04L1/1812

CPC classification number: H04L1/0057 ,  H04L1/0013 ,  H04L1/0041 ,  H04L1/0071 ,  H04L1/1819

Abstract: Provided are a data encoding method and device, a storage medium, and a processor. The method includes: obtaining data to be sent; performing quasi-cyclic low-density parity check (LDPC) encoding on the data to be sent to obtain an LDPC codeword sequence, and interleaving the LDPC codeword sequence to obtain an interleaved LDPC codeword sequence; performing cyclic bit selection on the interleaved LDPC codeword sequence from a starting position to obtain a rate-matched codeword sequence, where the starting position is determined according to a predetermined parameter; and sending the rate-matched codeword sequence. The solution above resolves the problem in the related art of unstable transmission after performing quasi-cyclic LDPC encoding on data to be transmitted, and achieves stable transmission after the quasi-cyclic LDPC encoding.

公开(公告)号：US11683051B2

公开(公告)日：2023-06-20

申请号：US17493612

申请日：2021-10-04

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Jin Xu

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/29 ,  H03M13/09

CPC classification number: H03M13/1148 ,  H03M13/00 ,  H03M13/11 ,  H03M13/114 ,  H03M13/116 ,  H03M13/1137 ,  H03M13/1185 ,  H03M13/2906 ,  H03M13/616 ,  H03M13/6356 ,  H03M13/6516 ,  H03M13/09

Abstract: The embodiments of the present disclosure provide a method and an apparatus for data processing with structured LDPC codes. The method includes: obtaining a code block size for structured LDPC coding; determining a coding expansion factor z based on at least one of the code block size, a parameter kb of a basic check matrix, a positive integer value p or the basic check matrix having mb rows and nb columns; and encoding a data sequence to be encoded, or decoding a data sequence to be decoded, based on the basic check matrix and the coding expansion factor. The present disclosure is capable of solving the problem in the related art associated with low flexibility in data processing with LDPC coding and improving the flexibility in data processing with LDPC coding.