Title:
USER DEVICE AND BASE STATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/107453
Kind Code:
A1
Abstract:
This user device comprises: a reception unit which receives from a base station device information indicating a region in the radio frame, and information relating to a RACH setting table in the radio frame; a control unit which, on the basis of information indicating the downlink region or uplink region and the information relating to the RACH setting table, identifies an available RACH resource; and a transmission unit which transmits a preamble. The information indicating the region includes an unknown region that may be used in either a downlink or an uplink. If the information relating to the RACH setting table indicates that a RACH resource is arranged in the unknown region, whether the RACH resource included in the unknown region is available or not is explicitly or implicitly identified.
Inventors:
OHARA TOMOYA (JP)
Application Number:
PCT/JP2018/043872
Publication Date:
June 06, 2019
Filing Date:
November 28, 2018
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W74/08; H04W72/04
Other References:
FUJITSU: "Remaining details on RA procedure", 3GPP TSG RAN WG1 MEETING 91 RL-1719617, vol. RAN WG1, 17 November 2017 (2017-11-17) - 1 December 2017 (2017-12-01), XP051368830
MOTOROLA MOBILITY ET AL.: "Remaining details on random access procedure", 3GPP TSG RAN WG1 #91 RL-1720922, vol. RAN WG1, 18 November 2017 (2017-11-18), XP051370300
CONVIDA WIRELESS: "Summary of Remaining details on PRACH formats", 3GPP TSG RAN WG1 MEETING #91 RL-1721471, vol. RAN WG1, 29 November 2017 (2017-11-29), XP051363994
NTT DOCOMO INC.: "Remaining details on PRACH formats", 3GPP TSG RAN WG1 MEETING #91 RL-1721044, vol. RAN WG1, 29 November 2017 (2017-11-29), XP051363805
3GPP TS 36.213, September 2017 (2017-09-01)
3GPP TS 36.211, September 2017 (2017-09-01)
See also references of EP 3720232A4
MOTOROLA MOBILITY ET AL.: "Remaining details on random access procedure", 3GPP TSG RAN WG1 #91 RL-1720922, vol. RAN WG1, 18 November 2017 (2017-11-18), XP051370300
CONVIDA WIRELESS: "Summary of Remaining details on PRACH formats", 3GPP TSG RAN WG1 MEETING #91 RL-1721471, vol. RAN WG1, 29 November 2017 (2017-11-29), XP051363994
NTT DOCOMO INC.: "Remaining details on PRACH formats", 3GPP TSG RAN WG1 MEETING #91 RL-1721044, vol. RAN WG1, 29 November 2017 (2017-11-29), XP051363805
3GPP TS 36.213, September 2017 (2017-09-01)
3GPP TS 36.211, September 2017 (2017-09-01)
See also references of EP 3720232A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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