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Title:
USER EQUIPMENT AND SIGNAL TRANSMITTING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/030121
Kind Code:
A1
Abstract:
A user equipment in a radio communication system which supports a first uplink communication scheme in which the user equipment autonomously selects a pre-determined uplink wireless resource, and a second uplink communication scheme in which a base station allocates an uplink wireless resource to the user equipment includes: an acquiring unit which acquires from the base station indication information indicating either one of the first uplink communication scheme and the second uplink communication scheme; and a transmitting unit which transmits an uplink signal using the first uplink communication scheme or the second uplink communication scheme in accordance with the indication information.

Inventors:
SANO YOUSUKE (JP)
TAKEDA KAZUAKI (JP)
NAGATA SATOSHI (JP)
Application Number:
PCT/JP2017/026500
Publication Date:
February 15, 2018
Filing Date:
July 21, 2017
Export Citation:
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Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W74/02; H04W72/12
Domestic Patent References:
WO2014180276A12014-11-13
WO2016072218A12016-05-12
Foreign References:
JP2016066887A2016-04-28
JP2005033399A2005-02-03
Other References:
ZTE: "Contention-based non-orthogonal multiple access for UL mMTC", 3GPP TSG RAN WG1 MEETING #85 R1-164269, 14 May 2016 (2016-05-14)
NTT DOCOMO; INC: "Uplink multiple access schemes for NR", 3GPP TSG RAN WG1 MEETING #85 R1-165174, 14 May 2016 (2016-05-14), XP051096229
PANASONIC: "Multiple access schemes for NR phase 1", 3GPP TSG RAN WG1 MEETING #86BIS R1-1609814, 30 September 2016 (2016-09-30), XP051158600
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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