WIRELESS BASE STATION, USER TERMINAL, AND WIRELESS COMMUNICATION METHOD

WIPO Patent Application WO/2017/051837

A1

In order to perform appropriate DL transmission even in the event that a measurement signal is transmitted at a different timing from DL data in a cell in which listening is applied prior to transmission, the present invention is configured to have a transmission unit that transmits DL data and a measurement signal to a user terminal, and a control unit that controls transmission of the DL data and the measurement signal on the basis of the result of the listening performed prior to transmission of the signal, said control unit applying different conditions to the listening that is performed prior to transmission of the DL data and the listening that is performed prior to transmission of the measurement signal.

HARADA HIROKI (JP)
NAGATA SATOSHI (JP)
JIANG YU (CN)
LIU LIU (CN)
JIANG HUILING (CN)

PCT/JP2016/077932

March 30, 2017

September 23, 2016

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NTT DOCOMO INC (JP)

H04W74/08; H04W16/04; H04W72/08

COOLPAD: "Discussion on DL reference signal transmission for LAA", 3GPP TSG-RAN WG1#81 R1- 153306, 15 May 2015 (2015-05-15), XP050972023, Retrieved from the Internet [retrieved on 20161205]
NTT DOCOMO, INC.: "Views on DL LBT mechanism and contention window size adaptation", 3GPP TSG-RAN WG1#82 RL-154403, 15 August 2015 (2015-08-15), XP051001706, Retrieved from the Internet [retrieved on 20161205]
SAMSUNG: "DRS design and LBT procedure", 3GPP TSG-RAN WG1#82 R1-154767, 30 August 2015 (2015-08-30), XP051021041, Retrieved from the Internet [retrieved on 20161205]
See also references of EP 3352523A4

AOKI, Hiroyoshi et al. (JP)

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