WIRELESS COMMUNICATION DEVICE, CHANNEL ESTIMATION METHOD, AND SIGNAL RELAY METHOD

WIPO Patent Application WO/2015/045697

A1

This wireless communication device, which is used in a time-division duplexing (TDD) system, is provided with the following: a sending unit that sends information representing a signal to have a destination wireless communication device relay and a resource for when said destination wireless communication device relays said signal; a transmission unit that transmits the signal to have the destination wireless communication device relay; a reception unit that receives the signal after said signal is relayed by the destination wireless communication device; and a channel estimation unit that performs channel estimation on the basis of the signal relayed by the destination wireless communication device.

KAKISHIMA YUICHI (JP)
NAGATA SATOSHI (JP)

PCT/JP2014/071984

April 02, 2015

August 22, 2014

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NTT DOCOMO INC (JP)

H04W72/04; H04B7/04; H04J99/00; H04W28/18; H04W88/04

JP2012100332A

2012-05-24

HIROKI SATO ET AL.: "Study of Carrier Frequency Offset Compensation Scheme for Multi-user MIMO Transmission", IEICE TECHNICAL REPORT, vol. 112, no. 264, October 2012 (2012-10-01), XP008180128
LANG P. WITHERS ET AL.: "Echo-MIMO: A Two-Way Channel Training Method for Matched Cooperative Beamforming, Signal Processing", IEEE TRANSACTIONS ON, vol. 56, no. ISSUE, September 2008 (2008-09-01), XP011227352
L. WITHERS: "Echo- MIMO: A two-say channel training method for matched cooperative beamforming", IEEE TRANS. SIG, September 2008 (2008-09-01)
See also references of EP 3051900A4

ITOH, Tadashige et al. (JP)
Tadashige Ito (JP)

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