WIRELESS BASE STATION, USER TERMINAL, AND WIRELESS COMMUNICATION METHOD

WIPO Patent Application WO/2016/006449

A1

A wireless communication system for operating LTE/LTE-A or the like in an unlicensed band, wherein the deterioration of communication quality is suppressed when using LBT. A wireless base station for communicating with a user terminal capable of using a licensed band and an unlicensed band, the wireless base station having a transmission unit for transmitting a plurality of DL signals in an unlicensed band, and a control unit for controlling the transmission of a DL signal in an unlicensed band on the basis of LBT (Listen Before Talk) results, wherein the control unit controls transmission so as to transmit some of the DL signals among the plurality of DL signals without applying LBT thereto. Specifically, the control unit sets the transmission period of the DL signals to be transmitted without applying LBT thereto so as to be longer than the transmission period applied in an existing system.

JP6612415	Data transmission methods, user equipment and base stations
WO/2020/143658	METHOD AND APPARATUS FOR MONITORING PDCCH, TERMINAL, BASE STATION, AND STORAGE MEDIUM
WO/2020/039484	USER EQUIPMENT

TAKEDA KAZUKI (JP)
HARADA HIROKI (JP)
NAGATA SATOSHI (JP)
WANG JING (CN)
LIU LIU (CN)
JIANG HUILING (CN)

PCT/JP2015/068209

January 14, 2016

June 24, 2015

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NTT DOCOMO INC (JP)

H04W72/04; H04W16/14

US20150071220A1

2015-03-12

NTT DOCOMO, INC.: "Views on LAA for Unlicensed Spectrum -Scenarios and Initial Evaluation Results-, RWS-140026", 3GPP, pages 1 - 12
T-MOBILE USA: "View on LTE Carrier Aggregation with Unlicensed Spectrum, RWS-140007", 3GPP, pages 1 - 8

AOKI, Hiroyoshi et al. (JP)
Hiroyoshi Aoki (JP)

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