公开(公告)号：US20220124843A1

公开(公告)日：2022-04-21

申请号：US17423792

申请日：2019-01-18

Applicant: NTT DOCOMO, INC.

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

IPC: H04W76/11

Abstract: Embodiments of the present disclosure provide a user equipment and a base station that can be used in a wireless communication system, or a method executed by a user equipment and a base station. The user equipment in the embodiments of the present invention includes: a control unit, configured to acquire a multiple access signature, wherein the multiple access signature is determined, from a multiple access signature pool, according to activation information of the user equipment, and the activation information of the user equipment is related to the activation of the user equipment; and a sending unit, configured to use the multiple access signature to send data.

公开(公告)号：US11050602B2

公开(公告)日：2021-06-29

申请号：US16650839

申请日：2018-09-11

Applicant: NTT DOCOMO, INC.

Inventor： Neng Ye ,  Dongbo Feng ,  Xiangming Li ,  Wenjia Liu ,  Xiaolin Hou ,  Qin Mu ,  Liu Liu

IPC: H04L27/20 ,  H04L27/34 ,  H04L27/36

Abstract: Methods and communication apparatuses are presented for bit-to-symbol mapping. The method for bit-to-symbol mapping according to one example of the present invention includes: obtaining a plurality of base constellation maps; and mapping an input bit sequence by using the plurality of base constellation maps to generate symbols to be transmitted.

公开(公告)号：US20240340214A1

公开(公告)日：2024-10-10

申请号：US18568166

申请日：2021-07-15

Applicant: NTT DOCOMO, INC.

Inventor： Xiaojuan Wang ,  Jianxiong Pan ,  Neng Ye ,  Xiangming Li ,  Wenjia Liu ,  Juan Liu ,  Xiaolin Hou ,  Lan Chen ,  Yoshihisa Kishiyama

IPC: H04L27/38

CPC classification number: H04L27/38

Abstract: The present disclosure provides an electronic device and a modulation method. The electronic device includes: a receiving unit, which is configured to obtain a first input bit sequence; and a control unit, which is configured to perform pseudo N-order first type modulation on the first input bit sequence, wherein N first symbols that may be obtained by means of the pseudo N-order first type modulation are a portion of second symbols that may be obtained by means of M-order second type modulation, M and N are positive integers, and M is greater than N.

公开(公告)号：US20210099326A1

公开(公告)日：2021-04-01

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.