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Title:
USER DEVICE AND SIGNAL RECEIVING METHOD
Document Type and Number:
WIPO Patent Application WO/2015/170544
Kind Code:
A1
Abstract:
In the present invention, a user device that performs communication between user devices comprises the following: a synchronized signal detection unit that detects an inter user-device synchronization signal that is sent from a user device of another cell or another carrier; a control unit that sets a reception timing on the basis of the inter user-device synchronization signal; and a reception unit that receives scheduling information or a discovery signal sent from the user device of another cell or another carrier within a time window that has been set on the basis of the inter user-device synchronization signal.

Inventors:
YASUKAWA, Shimpei (INC. SANNO PARK TOWER 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 〒1006150, JP)
HARADA, Hiroki (INC. SANNO PARK TOWER 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 〒1006150, JP)
NAGATA, Satoshi (INC. SANNO PARK TOWER 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 〒1006150, JP)
ZHAO, Qun (Ltd. 7/F Raycom Infotech Park Tower A, No.2 Kexueyuan South Road, Haidian District, Beijin, 100190, CN)
Application Number:
JP2015/060996
Publication Date:
November 12, 2015
Filing Date:
April 08, 2015
Export Citation:
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Assignee:
NTT DOCOMO, INC. (11-1, Nagatacho 2-chome Chiyoda-k, Tokyo 50, 〒1006150, JP)
International Classes:
H04W92/18; H04J1/00; H04J3/00; H04J4/00; H04W8/00; H04W56/00
Domestic Patent References:
WO2014051126A12014-04-03
WO2015008749A12015-01-22
Other References:
NTT DOCOMO, INC.: "Discussion on synchronization of D2D discovery", 3GPP TSG-RAN WG1#74B RL-134502, XP050717604, Retrieved from the Internet
See also references of EP 3142458A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (16th Floor, Marunouchi MY PLAZA 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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