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Title:
USER TERMINAL
Document Type and Number:
WIPO Patent Application WO/2015/170723
Kind Code:
A1
Abstract:
This UE (100), which supports D2D proximity services, is provided with a transmission unit that transmits a D2D synchronization signal and a prescribed D2D signal and a control unit that monitors the reception status of said D2D synchronization signal and prescribed D2D signal. When the UE (100) is outside a network coverage area, if the transmission unit is transmitting the aforementioned D2D synchronization signal but the control unit is not receiving either D2D synchronization signals or the aforementioned prescribed D2D signals from other user terminals, the UE (100) determines that no other UEs synchronized with this UE (100) are nearby.

Inventors:
ADACHI HIROYUKI (JP)
SAIWAI TAKAHIRO (JP)
Application Number:
PCT/JP2015/063240
Publication Date:
November 12, 2015
Filing Date:
May 07, 2015
Export Citation:
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Assignee:
KYOCERA CORP (JP)
International Classes:
H04W52/02; H04W8/00; H04W56/00; H04W92/18
Foreign References:
JP2010041648A2010-02-18
JP2013258625A2013-12-26
JP2011130157A2011-06-30
JP2005045616A2005-02-17
Other References:
ERICSSON: "Synchronization Procedures for D2D Discovery and Communication", 3GPP TSG-RAN WG1#76B RL-141381, 21 March 2014 (2014-03-21), XP050787052, Retrieved from the Internet [retrieved on 20150623]
See also references of EP 3142397A4
Attorney, Agent or Firm:
CURIUSE PATENT PROFESSIONAL CORPORATION (JP)
キュリーズ patent business corporation (JP)
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