Title:
USER TERMINAL, WIRELESS BASE STATION, AND WIRELESS COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/072220
Kind Code:
A1
Abstract:
The purpose of the present invention is to inhibit a reduction in throughput, even if a wireless base station executes listen before talk (LBT), in a system operating LTE/LTE-A using carriers in which LBT is set. A user terminal according to one embodiment of the present invention is capable of communicating with a wireless base station using carriers in which LBT is set. The user terminal is characterized by being provided with: a reception unit which, on the basis of an LBT result related to a specific subframe including an LBT symbol, receives transmitted downlink data; and a control unit for controlling reception processing of the downlink data. The user terminal is further characterized in that: the specific subframe is periodically allocated, and includes the LBT symbol in the last of N symbols; a subframe which lasts a prescribed period and continues from the specific subframe includes a physical downlink control channel (PDCCH) symbol in several header symbols; and the control unit takes into account the LBT symbol and the PDCCH symbols to control the reception processing of the downlink data.
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Inventors:
HARADA HIROKI (JP)
NAGATA SATOSHI (JP)
JIANG YU (CN)
LIU LIU (CN)
WANG JING (CN)
JIANG HUILING (CN)
NAGATA SATOSHI (JP)
JIANG YU (CN)
LIU LIU (CN)
WANG JING (CN)
JIANG HUILING (CN)
Application Number:
PCT/JP2015/078746
Publication Date:
May 12, 2016
Filing Date:
October 09, 2015
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04J11/00; H04J1/00; H04W28/06; H04W72/04; H04W72/12
Foreign References:
| JP2014500685A | 2014-01-09 |
Other References:
KYOCERA: "Design overview on LAA", 3GPP TSG-RAN WG1#78B RL-144157, October 2014 (2014-10-01), XP050872832, Retrieved from the Internet
NTT DOCOMO: "Inter-operator and Inter-RAT co-existence techniques for LAA using LTE", 3GPP TSG-RAN WG1#78B RL-144150, October 2014 (2014-10-01), XP050869796, Retrieved from the Internet
ALCATEL -LUCENT SHANGHAI BELL ET AL.: "Considerations on LBT Enhancements for Licensed-Assisted Access", 3GPP TSG-RAN WG1#78B RL-144083, August 2010 (2010-08-01), XP050872826, Retrieved from the Internet
NTT DOCOMO: "Inter-operator and Inter-RAT co-existence techniques for LAA using LTE", 3GPP TSG-RAN WG1#78B RL-144150, October 2014 (2014-10-01), XP050869796, Retrieved from the Internet
ALCATEL -LUCENT SHANGHAI BELL ET AL.: "Considerations on LBT Enhancements for Licensed-Assisted Access", 3GPP TSG-RAN WG1#78B RL-144083, August 2010 (2010-08-01), XP050872826, Retrieved from the Internet
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
Hiroyoshi Aoki (JP)
Hiroyoshi Aoki (JP)
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