Title:
USER DEVICE AND DISTANCE ESTIMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/060177
Kind Code:
A1
Abstract:
This user device, which is used in a mobile communication system that supports D2D communication, is provided with: an acquisition means that acquires information on transmission power for D2D signal transmission in a transmission-side user device; and a distance estimation means that measures the reception power of a reference signal that is multiplexed with a D2D signal that is received from the transmission-side user device, and estimates the distance between the transmission-side user device and the user device on the basis of the reception power and the transmission power.
Inventors:
YASUKAWA SHIMPEI (JP)
HARADA HIROKI (JP)
NAGATA SATOSHI (JP)
HARADA HIROKI (JP)
NAGATA SATOSHI (JP)
Application Number:
PCT/JP2015/079082
Publication Date:
April 21, 2016
Filing Date:
October 14, 2015
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
G01S11/06; G01S13/74; H04M1/00; H04W64/00; H04W92/18
Domestic Patent References:
| WO2014123103A1 | 2014-08-14 | |||
| WO2013047664A1 | 2013-04-04 |
Foreign References:
| JP2012510056A | 2012-04-26 |
Other References:
See also references of EP 3208631A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Tadashige Ito (JP)
Tadashige Ito (JP)
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