公开(公告)号：US20230388173A1

公开(公告)日：2023-11-30

申请号：US18031575

申请日：2021-07-19

Applicant: ZTE CORPORATION

Inventor： Xingxing CUI ,  Ying DENG ,  Zuofeng ZHANG ,  Yenan BIE ,  Tian TIAN

IPC: H04L27/34 ,  H04B7/0456

CPC classification number: H04L27/3405 ,  H04B7/0456

Abstract: The present disclosure provides a signal processing apparatus and a signal processing method, the signal processing apparatus includes: a preprocessing unit configured to generate a joint matrix according to channel matrixes of subcarriers, and perform a parallel-to-serial conversion on QAM signals of the subcarriers to obtain a serial QAM signal; a judgment unit configured to determine a constraint relationship of a constellation point in each element according to a determining result obtained by determining that whether the constellation point is to be extended in a constellation diagram; a processing unit configured to establish a convex optimization model according to the joint matrix, the serial QAM signal and the determining result, and determine a joint time-domain signal of antenna channels according to the constraint relationship of the constellation point and the convex optimization model; and a conversion unit configured to perform a serial-to-parallel conversion on the joint time-domain signal.

公开(公告)号：US20230275605A1

公开(公告)日：2023-08-31

申请号：US18003557

申请日：2021-06-22

Applicant: ZTE CORPORATION

Inventor： Zheyuan ZHANG ,  Dongfang NING ,  Songkun CHEN ,  Yanru CAO ,  Zhengjian DAI ,  Guangyu HU ,  Zuofeng ZHANG

IPC: H04B1/04

CPC classification number: H04B1/0475

Abstract: The embodiments of the present application relate to the field of communications, and provide a signal distortion pre-correction method, a signal distortion pre-correction device, and a non-volatile storage medium. In the present application, the mutual coupling filtering parameters and the predistortion coefficient candidate set are obtained by training the feedback signal collected by the multi-channel coupling element, so that the mutual coupling filtering processing can be performed on the forward signal of the digital channel according to the obtained mutual coupling filtering parameter, to make the target predistortion coefficient selected in the predistortion coefficient candidate set according to the forward signal after mutual coupling filtering and the forward signal of the digital channel to be processed to be the predistortion coefficient considering the mutual coupling factor of the digital channel.

公开(公告)号：US20250013590A1

公开(公告)日：2025-01-09

申请号：US18709346

申请日：2022-10-10

Applicant: ZTE CORPORATION

Inventor： Chuang ZHENG ,  Zhengjian DAI ,  Chao WAN ,  Jiangli LEI ,  Zuofeng ZHANG

IPC: G06F13/36

Abstract: The present application relate to the technical field of mobile communication, and in particular to a radio frequency chip, an algorithm reconstruction method and a computer-readable storage medium. The radio frequency chip includes a configuration interface, an interconnection bus, a processor and at least two operation units. Each operation unit is provided with different operation functions. The configuration interface is connected to the processor, and is configured to transmit the received routing information and the configuration data to the processor. The routing information and the configuration data are determined according to a target operation function of the radio frequency chip. The interconnection bus is communicated with each operation unit and is connected to the processor, and is configured to adjust an input and output relationship between each operation unit.

公开(公告)号：US20230047734A1

公开(公告)日：2023-02-16

申请号：US17781521

申请日：2020-10-29

Applicant: ZTE CORPORATION

Inventor： Yi WANG ,  Hongxing ZHOU ,  Zhe ZHANG ,  Zuofeng ZHANG ,  Dongfang NING

IPC: H03M1/10

Abstract: Provided are a Time-Interleaved Successive Approximation Register Analog-to-Digital Converter, TISAR ADC, and a calibration method thereof. The calibration method for the TISAR ADC may include: sampling an analog signal input into the TISAR ADC to generate a reference digital signal (S130); according to the reference digital signal and output digital signals generated by analog-to-digital conversion sub-modules of the TISAR ADC, obtaining capacitor array calibration parameters and time delay calibration parameters of the analog-to-digital conversion sub-modules; adjusting capacitor arrays of the corresponding analog-to-digital conversion sub-modules according to the capacitor array calibration parameters, respectively; and adjusting time delays of the corresponding analog-to-digital conversion sub-modules according to the time delay calibration parameters, respectively.

公开(公告)号：US20230035416A1

公开(公告)日：2023-02-02

申请号：US17758090

申请日：2020-12-28

Applicant: ZTE CORPORATION

Inventor： Wenhao DU ,  Yanru CAO ,  Dongfang NING ,  Zhengjian DAI ,  Zuofeng ZHANG ,  Qiulin HUANG

IPC: H04B7/08 ,  H04B7/0456

Abstract: An antenna array decoupling method, apparatus and system, and a non-transitory computer-readable storage medium are disclosed. The method may include: receiving predetermined digital domain signals of a plurality of channels, each of the plurality of channels being a data channel corresponding to a respective one of array elements in an antenna array (S110); determining decoupling factors of channels involved in decoupling corresponding to each channel, the decoupling factors being factors which have been solved for beforehand according to measured in-array pattern information of each array element in the antenna array (S120); and processing the predetermined digital domain signals of the channels involved in decoupling corresponding to each channel according to the decoupling factors to obtain a decoupled predetermined digital domain signal of each channel (S130).

公开(公告)号：US20220224290A1

公开(公告)日：2022-07-14

申请号：US17607303

申请日：2019-12-31

Applicant: ZTE Corporation

Inventor： Yunhua LI ,  Zheyuan ZHANG ,  Wenhao DU ,  Dongfang NING ,  Zuofeng ZHANG ,  Zhengjian DAI

IPC: H03F1/32 ,  H03F3/21 ,  H03F1/02

Abstract: A device, method, and system for signal distortion pre-correction, and a composite system are disclosed. The device-includes: a signal distortion correction network module, a correction parameter trainer, a data collection module connected to an external power amplifier module, and a first conversion module. The data collection module is configured to perform time-division collection on output signals of channels of the power amplifier module and output analog feedback signals to the first conversion module. The first conversion module is configured to convert the analog feedback signals into digital feedback signals. The correction parameter trainer is configured to determine a correction parameter according to the digital feedback signals and a forward signal inputted. The signal distortion correction network module is configured to correct the forward signal based on the correction parameter and output a pre-corrected signal.