Title:
USER DEVICE AND SIGNAL SYNCHRONIZATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/026518
Kind Code:
A1
Abstract:
Provided is a user device in a wireless communication system that supports device-to-device (D2D) communication, wherein the user device has: a receiving unit for receiving a signal of an external synchronization source, a synchronization signal transmitted from a base station, or a synchronization signal transmitted from another user device; and a synchronization processing unit for synchronizing a wireless frame and a frequency using one of the signal of the external synchronization source, the synchronization signal transmitted from the base station, and the synchronization signal transmitted from the other user device that are received by the receiving unit, the synchronization being carried out in accordance with priority information that indicates the priority of signals used for synchronization.
Inventors:
YASUKAWA SHIMPEI (JP)
NAGATA SATOSHI (JP)
ZHAO QUN (CN)
NAGATA SATOSHI (JP)
ZHAO QUN (CN)
Application Number:
PCT/JP2016/073612
Publication Date:
February 16, 2017
Filing Date:
August 10, 2016
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W56/00; H04W4/40; H04W4/70; H04W92/18
Domestic Patent References:
| WO2015010542A1 | 2015-01-29 | |||
| WO2015046264A1 | 2015-04-02 |
Foreign References:
| JP2014127993A | 2014-07-07 |
Other References:
See also references of EP 3337253A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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