公开(公告)号：US20250047548A1

公开(公告)日：2025-02-06

申请号：US18720335

申请日：2022-01-07

Applicant: NTT DOCOMO, INC.

Inventor： Xiaorui Yan ,  Neng Ye ,  Xiangming Li ,  Wenjia Liu ,  Xiaolin Hou ,  Lan Chen ,  Jing Wang ,  Yoshihisa Kishiyama ,  Takahiro Asai

IPC: H04L27/36

Abstract: The present disclosure provides a transmitting device, a receiving device and a receiving method. The receiving device includes: a receiving unit configured to receive information about a modulation parameter indicating a spiral factor; a control unit configured to determine pseudo-N-order first type of modulation according to the modulation parameter, wherein 2{circumflex over ( )}N first symbols of the pseudo-N-order first type of modulation correspond to a part of 2{circumflex over ( )}M second symbols of M-order second type of modulation, and M and N are positive integers.

公开(公告)号：US11469926B2

公开(公告)日：2022-10-11

申请号：US16981842

申请日：2018-05-11

Applicant: NTT DOCOMO, INC.

Inventor： Dongbo Feng ,  Xiangming Li ,  Neng Ye ,  Wenjia Liu ,  Xiaolin Hou ,  Runxin Wang ,  Liu Liu

IPC: H04L25/02 ,  H04L5/00 ,  H04W24/10

Abstract: Provided are a method for transmitting signals and corresponding terminals, and base stations, where the method for transmitting signals is performed by a terminal in a communication system. The method includes determining, whether to transmit an additional reference signal to a base station in the communication system according to information on channel conditions of the terminal; transmitting a main reference signal to the base station, where the main reference signal is used for channel estimation between the terminal and the base station; and when determining to transmit an additional reference signal to the base station, transmitting an additional reference signal to the base station according to configuration information of the additional reference signal.

公开(公告)号：US20220312424A1

公开(公告)日：2022-09-29

申请号：US17597258

申请日：2019-07-02

Applicant: NTT DOCOMO, INC.

Inventor： Neng Ye ,  Xiangming Li ,  Jianxiong Pan ,  Wenjia Liu ,  Xiaolin Hou

IPC: H04W72/08 ,  G06N3/08 ,  H04L1/16 ,  H04L45/02

Abstract: The present application provides a terminal and a base station. The terminal includes: a processing unit configured to use a neural network to map a bit sequence to be transmitted into a complex symbol sequence, wherein the neural network is configured to map the bit sequence into the complex symbol sequence within a predetermined range of a complex plane.

公开(公告)号：US11362879B2

公开(公告)日：2022-06-14

申请号：US16608728

申请日：2018-03-20

Applicant: NTT DoCoMo, Inc.

Inventor： Neng Ye ,  Xiangming Li ,  Xiaohang Chen ,  Xiaolin Hou ,  Qun Zhao ,  Huiling Jiang

IPC: H04L27/34 ,  H04W24/08

Abstract: A constellation rotation method is presented. The method includes: determining a statistical characteristic of a received signal of a Base Station (BS) according to a channel coefficient of one or more User Equipments (UEs), at least one of noise information and interference information, the received signal being a signal received by the BS through a physical channel from the one or more UEs; determining a constellation rotation angle of each UE according to the determined statistical characteristic of the received signal; and for each UE, rotating a constellation of a data stream of a UE according to the constellation rotation angle of the UE.