公开(公告)号：US20230033203A1

公开(公告)日：2023-02-02

申请号：US17788042

申请日：2021-05-11

申请人： ZTE CORPORATION

发明人： Lei LIU ,  Guanghui YU

IPC分类号： H03F1/32 ,  H03F3/195 ,  H03F1/30

摘要： Disclosed are a predistortion method and system, a device, and a non-transitory computer-readable storage medium. The predistortion method is applicable to a predistortion system which may include a predistortion multiplier, a complex neural network, and a radio frequency power amplifier output feedback circuit. The method may include: inputting a training complex vector to the predistortion system to obtain a complex scalar corresponding to the training complex vector, which is output by the predistortion system; training the predistortion system based on the training complex vector and the complex scalar until a generalization error vector magnitude and a generalization adjacent channel leakage ratio corresponding to the predistortion system meet set requirements; and inputting a service complex vector to the trained predistortion system to obtain a predistortion corrected complex scalar.

公开(公告)号：US20240178898A1

公开(公告)日：2024-05-30

申请号：US18551945

申请日：2021-12-10

申请人： ZTE CORPORATION

发明人： Lei LIU ,  Hao WU ,  Lun LI ,  Huahua XIAO ,  Zhaohua LU

IPC分类号： H04B7/06

CPC分类号： H04B7/0626 ,  H04B7/0658

摘要： A method for transmitting a compressed codebook, and a method for obtaining a channel state information matrix are disclosed. The method may include acquiring a channel state information (CSI) matrix for subsequent feedback; inputting the CSI matrix into an encoder network structure to acquire a first compressed codebook corresponding to the CSI matrix, wherein a number of elements of the first compressed codebook is less than a number of elements of the CSI matrix; and transmitting the first compressed codebook to a base station.

公开(公告)号：US20230179451A1

公开(公告)日：2023-06-08

申请号：US17923985

申请日：2021-03-04

申请人： ZTE CORPORATION

发明人： Lei LIU ,  Shuqiang XIA ,  Guanghui YU

IPC分类号： H04L25/02

CPC分类号： H04L25/0254 ,  H04L25/0242 ,  G06N3/084

摘要： A method for implementing uplink and downlink channel reciprocity, a communication node, and a storage medium are provided. The method for implementing uplink and downlink channel reciprocity includes: performing channel estimation in real time according to a received reference signal to obtain a channel estimation result; inputting the channel estimation result into a pre-trained neural network model, to output a channel adaptive matrix; and performing channel adaptation processing on a transmission signal by applying the channel adaptive matrix to the transmission signal.