Title:
USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/038894
Kind Code:
A1
Abstract:
In order to suitably perform UL transmission even when using abbreviated TTIs, this user terminal is provided with a transmission unit which performs UL transmission using at least one of multiple transmission time intervals (TTIs) included in one subframe in an existing system, and with a control unit which controls allocation of UL signals and/or UL channels, wherein the TTIs are configured from an even number of symbols in the existing system, and the control unit allocates an uplink control channel in the aforementioned TTIs.
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Inventors:
TAKEDA KAZUAKI (JP)
HARADA HIROKI (JP)
TAKEDA KAZUKI (JP)
NAGATA SATOSHI (JP)
HARADA HIROKI (JP)
TAKEDA KAZUKI (JP)
NAGATA SATOSHI (JP)
Application Number:
PCT/JP2016/075565
Publication Date:
March 09, 2017
Filing Date:
August 31, 2016
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W72/04; H04B1/713; H04J11/00
Domestic Patent References:
| WO2009107451A1 | 2009-09-03 |
Foreign References:
| EP2816858A1 | 2014-12-24 |
Other References:
ERICSSON: "Areas for reducing latency", 3GPP TSG-RAN WG2 #90 TDOC R2-152415, 15 May 2015 (2015-05-15), XP050972421
ERICSSON: "Study of shorter TTI for latency reduction", 3GPP TSG-RAN WG2 #91 TDOC R2-153493, 14 August 2015 (2015-08-14), XP050993915
ZTE: "Performance evaluation on short TTI", 3GPP TSG-RAN WG2 MEETING #91 R2-153852, 23 August 2015 (2015-08-23), XP051004478
See also references of EP 3346787A4
ERICSSON: "Study of shorter TTI for latency reduction", 3GPP TSG-RAN WG2 #91 TDOC R2-153493, 14 August 2015 (2015-08-14), XP050993915
ZTE: "Performance evaluation on short TTI", 3GPP TSG-RAN WG2 MEETING #91 R2-153852, 23 August 2015 (2015-08-23), XP051004478
See also references of EP 3346787A4
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
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