Title:
USER TERMINAL, WIRELESS BASE STATION AND WIRELESS COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/150451
Kind Code:
A1
Abstract:
The purpose of the present invention is to perform communication appropriately in wireless communication systems of the future. This user terminal performs communication using a transmission time interval (TTI) having a predetermined TTI length, and comprises: a receiving unit that receives a DL signal; a transmitting unit that transmits a UL signal; and a control unit that controls one of random access scrambled transmission, SRS transmission, alarm channel reception and mobility reference signal reception on the basis of downlink control information contained in the same TTI.
Inventors:
KISHIYAMA YOSHIHISA (JP)
TAKEDA KAZUKI (JP)
TAKEDA KAZUKI (JP)
Application Number:
PCT/JP2017/007508
Publication Date:
September 08, 2017
Filing Date:
February 27, 2017
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W72/04; H04W24/10; H04W72/12
Other References:
ERICSSON: "DCI bit fields for short TTI uplink transmissions", 3GPP TSG-RAN WG1#84 RL-160941, 6 February 2016 (2016-02-06), XP055415798
ERICSSON: "DCI for short TTI uplink transmissions", 3GPP TSG-RAN WG1#84 RL-160938, 6 February 2016 (2016-02-06), XP051053552
ETRI: "Discussion on TTI shortening", 3GPP TSG- RAN WG1#83 RL-157110, 7 November 2015 (2015-11-07), XP051042141
LG ELECTRONIC S: "Study on TTI shortening for downlink transmissions", 3GPP TSG-RAN WG1#84 R1- 160649, 6 February 2016 (2016-02-06), XP051064286
ETRI: "Overview on uplink design for TTI shortening", 3GPP TSG-RAN WG1#84 R1-161012, 5 February 2016 (2016-02-05), XP051063963
CATT: "System Analysis of UL TTI Shortening", 3GPP TSG-RAN WG1#84 RL-160375, 5 February 2016 (2016-02-05), XP051063753
See also references of EP 3425978A4
ERICSSON: "DCI for short TTI uplink transmissions", 3GPP TSG-RAN WG1#84 RL-160938, 6 February 2016 (2016-02-06), XP051053552
ETRI: "Discussion on TTI shortening", 3GPP TSG- RAN WG1#83 RL-157110, 7 November 2015 (2015-11-07), XP051042141
LG ELECTRONIC S: "Study on TTI shortening for downlink transmissions", 3GPP TSG-RAN WG1#84 R1- 160649, 6 February 2016 (2016-02-06), XP051064286
ETRI: "Overview on uplink design for TTI shortening", 3GPP TSG-RAN WG1#84 R1-161012, 5 February 2016 (2016-02-05), XP051063963
CATT: "System Analysis of UL TTI Shortening", 3GPP TSG-RAN WG1#84 RL-160375, 5 February 2016 (2016-02-05), XP051063753
See also references of EP 3425978A4
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
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