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Title:
BASE STATION DEVICE, MOBILE TERMINAL DEVICE, AND COMMUNICATION CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2012/046684
Kind Code:
A1
Abstract:
To provide a base station device, a mobile terminal device, and a communication control method, wherein it is possible to improve the accuracy of estimating the quality of a channel. A communication control method characterized by involving: a step for disposing a Channel State Information-Reference Signal (CSI-RS) which is a reference signal for estimating a downlink channel in a resource for the CSI-RS transmission sub-frame; a step for setting the resource disposed in an area adjacent to the CSI-RS transmission sub-frame as a muting resource; and a step for transmitting, to a mobile terminal device, transmission interval information pertaining to the transmission interval of sub-frames having the same timing within the transmission cycle of CSI-RS transmission sub-frames in the area in which the mobile terminal device is located and the transmission cycle of CSI-RS transmission sub-frames in an adjacent area.

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Inventors:
MIKI NOBUHIKO (JP)
ABE TETSUSHI (JP)
OHWATARI YUSUKE (JP)
NAGATA SATOSHI (JP)
Application Number:
PCT/JP2011/072750
Publication Date:
April 12, 2012
Filing Date:
October 03, 2011
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Assignee:
NTT DOCOMO INC (JP)
MIKI NOBUHIKO (JP)
ABE TETSUSHI (JP)
OHWATARI YUSUKE (JP)
NAGATA SATOSHI (JP)
International Classes:
H04W72/04; H04J1/00; H04J11/00
Foreign References:
JP2010225178A2010-10-04
Other References:
NTT DOCOMO: "Signaling to Support CSI-RS", 3GPP TSG RAN WG1 MEETING #62 R1-104930, 23 August 2010 (2010-08-23), XP050450074
NTT DOCOMO: "Views on PDSCH Muting", 3GPP TSG RAN WG1 MEETING #62 R1-104932, 23 August 2010 (2010-08-23), XP050598634
NTT DOCOMO: "Signaling to Support PDSCH Muting", 3GPP TSG RAN WG1 MEETING #62BIS R1-105434, 11 October 2010 (2010-10-11), XP050450567
"Feasibility study for Evolved UTRA and UTRAN", 3GPP, TR25.912, September 2006 (2006-09-01)
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
Hiroyoshi Aoki (JP)
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