Terminal, base station, and radio communication method

Patent metadata

Field	Value
Publication number	US-11330424-B2
Application number	US-202016930662-A
Country	US
Kind code	B2
Filing date	Jul 16, 2020
Priority date	Mar 31, 2016
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A terminal is disclosed including a processor that controls a period to hold an uplink control information (UCI) based on information provided by a downlink control information (DCI) and a transmitter that transmits multiple UCIs, including the UCI held in the period, together. In other aspects, a radio communication method for a terminal and a base station are also disclosed.

First claim

The invention claimed is:

1. A terminal comprising:
a receiver that receives a first physical downlink shared channel (PDSCH) and a second PDSCH subsequent to the first PDSCH;
a processor that controls a period to hold an uplink control information (UCI) corresponding to the first PDSCH based on first information provided by a first downlink control information (DCI) that schedules the first PDSCH and on second information provided by a second DCI that schedules the second PDSCH; and
a transmitter that transmits multiple UCIs, including the UCI held in the period, together.

2. The terminal according to claim 1 , wherein the transmitter transmits the multiple UCIs in a cell in which listening is performed before uplink transmission.

3. A radio communication method for a terminal, comprising:
receiving a first physical downlink shared channel (PDSCH) and a second PDSCH subsequent to the first PDSCH;
controlling a period to hold an uplink control information corresponding to the first PDSCH (UCI) based on first information provided by a first downlink control information (DCI) that schedules the first PDSCH and on second information provided by a second DCI that schedules the second PDSCH; and
transmitting multiple UCIs, including the UCI held in the period, together.

4. A base station comprising:
a transmitter that transmits a first downlink control information (DCI) to provide first information for controlling a period to hold an uplink control information (UCI) corresponding to a first physical downlink shared channel (PDSCH) and a second DCI to provide second information for controlling a period to hold the UCI, and transmits the first PDSCH scheduled by the first DCI and a second PDSCH scheduled by the second DCI; and
a receiver that receives multiple UCIs, including the UCI held in the period, together.

Assignees

• Ntt Docomo Inc

Inventors

• Harada Hiroki
• Nagata Satoshi
• Liu Liu
• Wang Lihui
• Jiang Huiling

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W74/0808

  using carrier sensing, e.g. carrier sense multiple access [CSMA] · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04W8/22 Primary

  Processing or transfer of terminal data, e.g. status or physical capabilities · CPC title