公开(公告)号：US20210219314A1

公开(公告)日：2021-07-15

申请号：US15734005

申请日：2018-06-07

Applicant: NTT DOCOMO, INC.

Inventor： Ryosuke Osawa ,  Kazuaki Takeda ,  Satoshi Nagata ,  Huan Wang ,  Xufei Zheng ,  Xiaolin Hou

IPC: H04W72/12 ,  H04W24/10 ,  H04W76/14

Abstract: A user apparatus has a request unit configured to transmit a scheduling request to a base station apparatus, an acquisition unit configured to receive information indicative of a resource pool based on the scheduling request from the base station apparatus, and a communication unit configured to perform sidelink transmission to another user apparatus using the resource pool.

公开(公告)号：US12245194B2

公开(公告)日：2025-03-04

申请号：US17439144

申请日：2019-03-20

Applicant: NTT DOCOMO, INC.

Inventor： Shohei Yoshioka ,  Satoshi Nagata ,  Huan Wang

IPC: H04W72/02 ,  H04L1/08 ,  H04W72/044 ,  H04W72/0453 ,  H04W72/20 ,  H04W92/18

Abstract: A user equipment includes a transmitting unit that transmits, to another user equipment, data through a physical shared channel; a control unit that identifies a resource in which a channel used for transmission and reception of a response related to retransmission control for the data is allocated; and a receiving unit that receives, from the another user equipment, the response related to the retransmission control for the data through the channel used for transmission and reception of the response related to the retransmission control, wherein the control unit identifies, based on a subchannel in which the physical shared channel is allocated, the resource in which the channel for receiving the response related to the retransmission control is allocated.

公开(公告)号：US12063642B2

公开(公告)日：2024-08-13

申请号：US17606959

申请日：2019-04-30

Applicant: NTT DOCOMO, INC.

Inventor： Shohei Yoshioka ,  Satoshi Nagata ,  Huan Wang

IPC: H04W72/1263 ,  H04L5/00 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/542 ,  H04W72/566

CPC classification number: H04W72/1263 ,  H04L5/0053 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/542 ,  H04W72/569

Abstract: A communication apparatus includes a receiving unit configured to receive data on a sidelink shared channel; a control unit configured to generate acknowledgement information about the received data; and a transmitting unit configured to, upon detecting that a first elapsed time from receiving the data by the receiving unit until a timing for transmitting the acknowledgement information via a sidelink is shorter than a first reference time, defer the timing for transmitting the acknowledgement information via the sidelink until the first elapsed time becomes longer than or equal to the first reference time.

公开(公告)号：US12047937B2

公开(公告)日：2024-07-23

申请号：US17259804

申请日：2018-07-19

Applicant: NTT DOCOMO, INC.

Inventor： Ryosuke Osawa ,  Huan Wang ,  Xufei Zheng ,  Xiaolin Hou

IPC: H04W72/12 ,  H04W72/1263 ,  H04W72/23 ,  H04W72/566 ,  H04W4/40

CPC classification number: H04W72/1263 ,  H04W72/23 ,  H04W72/569 ,  H04W4/40

Abstract: A user device includes a transmission unit that transmits a first traffic to a second user device using a resource scheduled for sidelink by a base station device or a first user device, a reception unit that receives from the base station device or the first user device a sidelink pre-emption indication indicating that all or part of the resource scheduled for the sidelink is to be used for a second traffic, and a control unit that excludes a resource used for the second traffic from the resource for the sidelink used for transmitting the first traffic, based on the sidelink pre-emption indication.

公开(公告)号：US12010656B2

公开(公告)日：2024-06-11

申请号：US17428153

申请日：2019-02-15

Applicant: NTT DOCOMO, INC.

Inventor： Shohei Yoshioka ,  Satoshi Nagata ,  Huan Wang ,  Xiaolin Hou

IPC: H04W72/02

CPC classification number: H04W72/02

Abstract: Provided is a user equipment including a transmitting unit that transmits a packet for terminal-to-terminal direct communication and a control unit that selects a transmission resource for transmitting the packet from candidate resources in a resource selection window having a predetermined range.

公开(公告)号：US11974267B2

公开(公告)日：2024-04-30

申请号：US17417292

申请日：2018-12-27

Applicant: NTT DOCOMO, INC.

Inventor： Shohei Yoshioka ,  Satoshi Nagata ,  Huan Wang

IPC: H04W72/121 ,  H04L1/08 ,  H04L1/1812 ,  H04W72/542

CPC classification number: H04W72/121 ,  H04L1/08 ,  H04L1/1812 ,  H04W72/542

Abstract: A user equipment includes a transmitter that performs a groupcast transmission to a group including a plurality of units of user equipment; a receiver that receives a hybrid automatic repeat request (HARQ) response to the groupcast transmission; and a controller that performs retransmission control for the groupcast based on received power that is measured on a channel for receiving the HARQ response.

公开(公告)号：US11956759B2

公开(公告)日：2024-04-09

申请号：US17372922

申请日：2021-07-12

Applicant: NTT DOCOMO, INC.

Inventor： Shinpei Yasukawa ,  Satoshi Nagata ,  Qun Zhao ,  Jing Wang ,  Huan Wang ,  Liu Liu ,  Anxin Li ,  Huiling Jiang

IPC: H04W72/02 ,  H04W4/40 ,  H04W24/10 ,  H04W74/08 ,  H04W74/0816 ,  H04W92/18

CPC classification number: H04W72/02 ,  H04W24/10 ,  H04W74/0816 ,  H04W92/18 ,  H04W4/40

Abstract: A terminal is disclosed including a selection unit that selects first resource candidates for sidelink transmission based on monitoring in a sensing window, and specifies second resource candidates by excluding specific periodic resources that are reserved by another terminal from the first resource candidates; and a transmission unit that performs sidelink transmission using a resource selected from the second resource candidates. In another aspect, a transmission method executed by a terminal is also disclosed.

公开(公告)号：US11943720B2

公开(公告)日：2024-03-26

申请号：US17297833

申请日：2019-01-10

Applicant: NTT DOCOMO, INC.

Inventor： Shohei Yoshioka ,  Satoshi Nagata ,  Huan Wang ,  Xiaolin Hou

IPC: H04W52/36 ,  H04W4/06 ,  H04W52/34

CPC classification number: H04W52/36 ,  H04W4/06 ,  H04W52/34

Abstract: A user equipment includes a transmitting unit configured to transmit a groupcast to a group including a plurality of user equipments, a receiving unit configured to receive a response related to a retransmission control for the groupcast, and a control unit configured to control a leakage power to another channel arranged by frequency division with a channel via which a response related to the retransmission control for the groupcast is received.

公开(公告)号：US20220217741A1

公开(公告)日：2022-07-07

申请号：US17606959

申请日：2019-04-30

Applicant: NTT DOCOMO, INC.

Inventor： Shohei Yoshioka ,  Satoshi Nagata ,  Huan Wang

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/02 ,  H04L5/00

Abstract: A communication apparatus includes a receiving unit configured to receive data on a sidelink shared channel; a control unit configured to generate acknowledgement information about the received data; and a transmitting unit configured to, upon detecting that a first elapsed time from receiving the data by the receiving unit until a timing for transmitting the acknowledgement information via a sidelink is shorter than a first reference time, defer the timing for transmitting the acknowledgement information via the sidelink until the first elapsed time becomes longer than or equal to the first reference time.

公开(公告)号：US20220173828A1

公开(公告)日：2022-06-02

申请号：US17598721

申请日：2019-04-02

Applicant: NTT DOCOMO, INC.

Inventor： Shohei Yoshioka ,  Satoshi Nagata ,  Huan Wang

IPC: H04L1/00 ,  H04W72/04 ,  H04W72/02

Abstract: A user apparatus is provided that includes a control unit configured to determine an MCS (Modulation and Coding Scheme) table and a transmission unit configured to perform sidelink transmission in accordance with the MCS table.