RADIO BASE STATION, USER TERMINAL AND RADIO COMMUN
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专利名称：RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD 发明人：Harada, Hiroki,Nagata, Satoshi
申请号：EP21194794.0
申请日：20160804
公开号：EP3941140A1
公开日：
20220119
专利内容由知识产权出版社提供
摘要：The present invention is designed to allow co-presence with other systems, and, furthermore, achieve improved spectral efficiency in cells (for example, unlicensed bands) in which pre-transmission listening is employed. The present invention provides a a radio base station (11) comprising a transmission section (103) that transmits a downlink (DL) signal; a control section (301) that controls DL transmission by applying listening before performing transmission of the DL signal; and a receiving section (103) that receives a delivery acknowledgement signal (ACK/NACK) in response to the DL transmission, wherein the control section (301) controls a contention window value to apply to listening based on a number of acknowledgements (ACKs) in response to the DL transmission within a predetermined period, and a number of codewords and/or a number of transport blocks for the DL transmission.
申请人：NTT DOCOMO, INC.
地址：11-1 Nagatacho 2-chome Chiyoda-Ku Tokyo 100-6150 JP
国籍：JP
代理机构：Hoffmann Eitle
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