Title:
WIRELESS BASE STATION, USER TERMINAL, AND WIRELESS COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/026489
Kind Code:
A1
Abstract:
The present invention improves frequency utilization efficiency for a cell (for example, an unlicensed band) to which listening is applied before transmission and can coexist with another system in the cell. The present invention has: a transmission unit that transmits a channel-state-information-measurement reference signal; and a control unit that uses listening to control the transmission of the channel-state-information-measurement reference signal. The control unit performs control such that the channel-state-information-measurement reference signal is transmitted without being multiplexed with data and/or a control signal and also performs control such that setting information for the channel-state-information-measurement reference signal that is transmitted without being multiplexed with the data and/or the control signal is transmitted.
More Like This:
Inventors:
HARADA HIROKI (JP)
NAGATA SATOSHI (JP)
KAKISHIMA YUICHI (US)
NAGATA SATOSHI (JP)
KAKISHIMA YUICHI (US)
Application Number:
PCT/JP2016/073470
Publication Date:
February 16, 2017
Filing Date:
August 09, 2016
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W16/14; H04W24/10; H04W72/04
Other References:
ITL: "On the CSI measurement and reports for LAA", 3GPP TSG-RAN WG1#81 RL-153272, 16 May 2015 (2015-05-16), XP050974053, Retrieved from the Internet [retrieved on 20161018]
ZTE: "Discussion on RRM measurement and DRS design for LAA", 3GPP TSG-RAN WG1#80B RL-151806, 11 April 2015 (2015-04-11), XP050934667, Retrieved from the Internet [retrieved on 20161018]
MOTOROLA MOBILITY: "Further Discussions on Physical Layer enhancement options for LAA- LTE", 3GPP TSG-RAN WG1#80B R1-151987, 11 April 2015 (2015-04-11), XP050934838, Retrieved from the Internet [retrieved on 20161018]
NTT DOCOMO, INC.: "Discussion on CSI measurement design for LAA DL", 3GPP TSG-RAN WG1#82 RL-154407, 15 August 2015 (2015-08-15), XP050994276, Retrieved from the Internet [retrieved on 20161018]
ZTE: "Discussion on RRM measurement and DRS design for LAA", 3GPP TSG-RAN WG1#80B RL-151806, 11 April 2015 (2015-04-11), XP050934667, Retrieved from the Internet
MOTOROLA MOBILITY: "Further Discussions on Physical Layer enhancement options for LAA- LTE", 3GPP TSG-RAN WG1#80B R1-151987, 11 April 2015 (2015-04-11), XP050934838, Retrieved from the Internet
NTT DOCOMO, INC.: "Discussion on CSI measurement design for LAA DL", 3GPP TSG-RAN WG1#82 RL-154407, 15 August 2015 (2015-08-15), XP050994276, Retrieved from the Internet
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
Download PDF: