公开(公告)号：US20220385513A1

公开(公告)日：2022-12-01

申请号：US17838060

申请日：2022-06-10

Applicant: ZTE Corporation

Inventor： Yu XIN ,  Jun XU ,  Guanghui YU ,  Jian HUA

IPC: H04L27/26 ,  H04W52/02 ,  H04L27/34

Abstract: Methods, apparatus, and systems for reducing Peak Average Power Ratio (PAPR) in signal transmissions are described. In one example aspect, a wireless communication method includes determining, for an input sequence, an output sequence. The output sequence corresponds to an output of a convolutional modulation between a set of coefficients and an intermediate sequence. The intermediate sequence is generated by inserting N zero coefficients between coefficients of the input sequence. The number of non-zero coefficients in the set of coefficients is based on N, N being a positive integer. Values of the non-zero coefficients correspond to values between 0 to π/2 to reduce a peak to average power ratio of the output sequence. The method also includes generating a waveform using the output sequence.

公开(公告)号：US20220353127A1

公开(公告)日：2022-11-03

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：US20220271981A1

公开(公告)日：2022-08-25

申请号：US17740863

申请日：2022-05-10

Applicant: ZTE Corporation

Inventor： Yu XIN ,  Tong BAO ,  Jin XU ,  Guanghui YU ,  Liujun HU

IPC: H04L27/26

Abstract: This disclosure relates to methods and devices for configuring guard subcarriers in transmission subbands to reduce interband interference in a wireless communication network. In one implementation, the method may include determining that a first subcarrier spacing for a first radio frequency transmission band is less than a second subcarrier spacing for a second radio frequency transmission band, and the first radio frequency transmission band is close to the second radio frequency transmission band in frequency spectrum. The method may further include configuring a subcarrier of the first radio frequency transmission band as a guard subcarrier carrying dummy data when the first radio frequency transmission band and the second radio frequency transmission band are simultaneously used to transmit data loads.

公开(公告)号：US20220255784A1

公开(公告)日：2022-08-11

申请号：US17687133

申请日：2022-03-04

Applicant: ZTE Corporation

Inventor： Yu XIN ,  Guanghui YU ,  Jian HUA

IPC: H04L27/26 ,  H04L27/34

Abstract: Methods, apparatus, and systems for reducing Peak Average Power Ratio (PAPR) in signal transmissions are described. In one example aspect, a wireless communication method includes determining, for an input sequence of coefficients, an output sequence and generating a waveform using the output sequence. The output sequence corresponds to an output of a convolutional modulation between a three-coefficient function associated with 2 2 , 1, and 2 2 and an intermediate sequence. The intermediate sequence is generated by inserting zero coefficients between coefficients of the input sequence of coefficients

公开(公告)号：US20210328848A1

公开(公告)日：2021-10-21

申请号：US17339211

申请日：2021-06-04

Applicant: ZTE Corporation

Inventor： Yu XIN ,  Tong BAO

IPC: H04L27/26

Abstract: Methods, apparatus, and systems for efficiently utilizing scattered narrow spectra without introducing interreference among adjacent frequency bands are described. In one example aspect, a wireless communication method includes determining a set of time-domain symbols by applying an inverse Fourier transform to data modulated on multiple subcarrier groups. Each subcarrier group comprises one or more subcarriers and adjacent subcarrier groups are separated by one or more unused subcarriers, and each symbol has a symbol length of T0. The method includes determining a set of modulated time-domain symbols each having a length of N×T1 by modulating the set of time-domain symbols using a waveform function, where N is a real number greater than 1. The method includes transmitting the set of modulated time-domain symbols.

公开(公告)号：US20210168802A1

公开(公告)日：2021-06-03

申请号：US17169170

申请日：2021-02-05

Applicant: ZTE Corporation

Inventor： Yu XIN ,  Wubin ZHOU

IPC: H04W72/04 ,  H04L5/00 ,  H04W28/26 ,  H04L27/26 ,  H04W28/20

Abstract: Provided is a transmission bandwidth configuration method. The method includes: configuring a first channel bandwidth (CB) of a carrier; and in response to determining that the first CB is greater than a first preset bandwidth, configuring subcarriers in a first TBC according to a preset percentage X of the first TBC in the first CB and the first CB, so as to complete a subcarrier configuration in a transmission bandwidth configuration. The preset percentage X is within a range of [a preset lower limit value, a preset upper limit value], the preset lower limit value is greater than 90% and the preset upper limit value is less than 100%. Also provided is a transmitting node.

公开(公告)号：US20210050930A1

公开(公告)日：2021-02-18

申请号：US16989761

申请日：2020-08-10

Applicant: ZTE Corporation

Inventor： Liguang LI ,  Jun XU ,  Zhisong ZUO ,  Hao WU ,  Yu XIN ,  Luanjian BIAN ,  Jin XU

IPC: H04L1/00 ,  H04W28/06

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：US20200287765A1

公开(公告)日：2020-09-10

申请号：US16768220

申请日：2018-07-31

Applicant: ZTE CORPORATION

Inventor： Yu XIN ,  Luanjian BIAN

IPC: H04L27/26 ,  H04W72/04 ,  H04L5/00 ,  H04L5/12

Abstract: Disclosed are a data sending and receiving method, apparatus, and device, and a computer readable storage medium. The method includes: when a first transmission frequency band sends data by adopting an extended sequence modulation data sending rule, data to be transmitted on spaced sub-carriers of the first transmission frequency band is respectively multiplied by each extended element in an extended sequence with a length of 2K to obtain extended data with a number of 2K, where there is another extended element with a phase difference of π relative to each extended element in the extended sequence; and the extended data with the number of 2K is sent on 2K spaced sub-carriers of the first transmission frequency band, where K is a positive integer.

公开(公告)号：US20190028312A1

公开(公告)日：2019-01-24

申请号：US16069033

申请日：2017-02-07

Applicant: ZTE CORPORATION

Inventor： Yu XIN ,  Guanghui YU ,  Jun XU

IPC: H04L27/26

Abstract: Disclosed in the embodiments of the present application are a data modulating and demodulating method, a data transmission method and node for multi-carrier system. The data modulating method including: selecting, by a transmitting node, corresponding waveform functions based on values of a first parameter, wherein the first parameter includes K values corresponding to K different waveform functions, respectively, and K is an integer greater than 1; and performing, by the transmitting node, using the selected waveform functions, modulation on time domain data sequences processed by Inverse Fast Fourier Transform (IFFT) to obtain a modulated data sequence. The first parameter may be configured by a base station for a UE. Also provided by the embodiments of the present application are a corresponding demodulation method and data transmission method and node.