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1. WO2019030869 - USER TERMINAL, BASE STATION, AND RADIO COMMUNICATION METHOD

Publication Number WO/2019/030869
Publication Date 14.02.2019
International Application No. PCT/JP2017/028981
International Filing Date 09.08.2017
IPC
H04L 1/16 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
CPC
H04L 1/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
H04L 1/1621
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
1607Details of the supervisory signal
1621Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
H04L 1/1657
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
1607Details of the supervisory signal
1657Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window
H04L 1/1671
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
1607Details of the supervisory signal
1671the supervisory signal being transmitted together with control information
H04L 1/1854
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
18Automatic repetition systems, e.g. van Duuren system ; ; ARQ protocols
1829Arrangements specific to the receiver end
1854Scheduling and prioritising arrangements
H04L 1/1858
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
18Automatic repetition systems, e.g. van Duuren system ; ; ARQ protocols
1829Arrangements specific to the receiver end
1858Transmission or retransmission of more than one copy of acknowledgement message
Applicants
  • 株式会社NTTドコモ NTT DOCOMO, INC. [JP]/[JP]
Inventors
  • 武田 一樹 TAKEDA, Kazuki
  • 永田 聡 NAGATA, Satoshi
  • ワン リフェ WANG, Lihui
  • コウ ギョウリン HOU, Xiaolin
Agents
  • 青木 宏義 AOKI, Hiroyoshi
  • 天田 昌行 AMADA, Masayuki
  • 守屋 芳隆 MORIYA, Yoshitaka
Priority Data
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) USER TERMINAL, BASE STATION, AND RADIO COMMUNICATION METHOD
(FR) TERMINAL D'UTILISATEUR, STATION DE BASE ET PROCÉDÉ DE COMMUNICATION RADIO
(JA) ユーザ端末、基地局及び無線通信方法
Abstract
(EN) In order to perform communication properly even when the transmission timing/transmission period of retransmission control information is flexibly controlled (becomes variable), one aspect of a user terminal according to the present invention has: a transmission unit that transmits retransmission control information for DL transmission; and a control unit that controls transmission of the retransmission control information at a prescribed timing, notification of said timing having been provided from a base station, wherein a time window is set for the retransmission control information, the control unit controls the transmission of the retransmission control information on the basis of the prescribed timing and the time window that was set for the retransmission control information, and at least one instance of the prescribed timing is included in the range of the time window.
(FR) Selon la présente invention, afin de réaliser correctement une communication même lorsque le rythme de transmission/la période de transmission d'informations de commande de retransmission est commandé de manière souple (devient variable), un aspect d'un terminal d'utilisateur comprend: une unité de transmission qui transmet des informations de commande de retransmission pour une transmission DL; et une unité de commande qui commande la transmission des informations de commande de retransmission à un rythme prescrit, une notification dudit rythme ayant été fournie à partir d'une station de base, une fenêtre temporelle étant spécifiée pour les informations de commande de retransmission, l'unité de commande assurant la commande de la transmission des informations de commande de retransmission d'après le rythme prescrit et la fenêtre temporelle qui a été spécifiée pour les informations de commande de retransmission, et au moins une instance du rythme prescrit étant comprise dans l'étendue de la fenêtre temporelle.
(JA) 再送制御情報の送信タイミング/送信期間が柔軟に制御される(可変となる)場合であっても、通信を適切に行うために、本発明のユーザ端末の一態様は、DL送信に対する再送制御情報を送信する送信部と、基地局から通知された所定タイミングで前記再送制御情報の送信を制御する制御部と、を有し、前記再送制御情報に対して時間ウィンドウが設定され、前記制御部は、前記所定タイミングと前記再送制御情報に設定された時間ウィンドウとに基づいて前記再送制御情報の送信を制御し、前記所定タイミングが前記時間ウィンドウの範囲に少なくとも1回は含まれる。
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