Title:
USER TERMINAL, WIRELESS BASE STATION, AND WIRELESS COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/126579
Kind Code:
A1
Abstract:
The purpose of the present invention is to perform uplink transmission using an uplink resource allocation method which is suitable for cells (such as cells in an unlicensed band) in which listening is applied before transmission. A user terminal according to one embodiment of the present invention receives downlink control information including allocation information for uplink resources to be allocated using either single cluster allocation (type 0) in which a single cluster is allocated to the user terminal, or interlaced multi-cluster allocation (type 2) in which a transmission unit formed from a plurality of clusters arranged at equal intervals in the frequency direction is allocated to the user terminal. The user terminal determines, on the basis of the allocation information, the uplink resource to be used for the transmission of an uplink shared channel.
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Inventors:
HARADA HIROKI (JP)
TAKEDA KAZUKI (JP)
NAGATA SATOSHI (JP)
TAKEDA KAZUKI (JP)
NAGATA SATOSHI (JP)
Application Number:
PCT/JP2017/001654
Publication Date:
July 27, 2017
Filing Date:
January 19, 2017
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W72/04; H04W16/14; H04W72/12
Foreign References:
| JP2015179994A | 2015-10-08 | |||
| JP2015065678A | 2015-04-09 | |||
| JP2015092716A | 2015-05-14 |
Other References:
QUALCOMM INCORPORATED,: "Uplink Waveform for LAA", 3GPP TSG-RAN WG1#81 R1-152790, 29 April 2015 (2015-04-29), pages 1 - 4, XP050971219, Retrieved from the Internet
SAMSUNG: "Discussion on UL transmission for LAA", 3GPP TSG-RAN WG1#81 R1-152872, 29 May 2015 (2015-05-29), pages 1 - 5, XP050973755, Retrieved from the Internet
NTT DOCOMO, INC: "Discussion on PUSCH design for eLAA UL", 3GPP TSG-RAN WG1#84 R1-160946, 19 February 2016 (2016-02-19), pages 1 - 5, XP051063937, Retrieved from the Internet
"Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2", 3GPP TS 36.300
AT&T: "Drivers, Benefits and Challenges for LTE in Unlicensed Spectrum", 3GPP TSG RAN MEETING #62 RP-131701, 3 December 2013 (2013-12-03)
See also references of EP 3407653A4
SAMSUNG: "Discussion on UL transmission for LAA", 3GPP TSG-RAN WG1#81 R1-152872, 29 May 2015 (2015-05-29), pages 1 - 5, XP050973755, Retrieved from the Internet
NTT DOCOMO, INC: "Discussion on PUSCH design for eLAA UL", 3GPP TSG-RAN WG1#84 R1-160946, 19 February 2016 (2016-02-19), pages 1 - 5, XP051063937, Retrieved from the Internet
"Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2", 3GPP TS 36.300
AT&T: "Drivers, Benefits and Challenges for LTE in Unlicensed Spectrum", 3GPP TSG RAN MEETING #62 RP-131701, 3 December 2013 (2013-12-03)
See also references of EP 3407653A4
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
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