WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, RADIO BASE STATION AND RADIO TERMINAL STATION

WIPO Patent Application WO/2011/004875

A1

A wireless communication method is used for performing communications by use of spatial multiplexing between cells in an overlap cell environment. In a case where MU-MIMO is in an overlap cell environment, when a null is to be generated between a radio base station and a radio terminal station belonging to mutually different cells, a "call signal" and a "response signal" are initially used to detect the radio base station and radio terminal station belonging to the mutually different cells. Thereafter, the null is generated to avoid radio waves from interfering with each other between the radio base station and radio terminal station belonging to the mutually different cells. At this moment, the addresses of the radio base station and radio terminal station are used in order to determine whether the radio base station and radio terminal station belong to the same cell or mutually different cells.

MURAKAMI TOMOKI (JP)
ICHIKAWA TAKEO (JP)
KUDO RIICHI (JP)
TAKATORI YASUSHI (JP)
MIZOGUCHI MASATO (JP)
HIRAGURI TAKEFUMI (JP)
NISHIMORI KENTARO (JP)

PCT/JP2010/061641

January 13, 2011

July 08, 2010

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NIPPON TELEGRAPH & TELEPHONE (JP)
MURAKAMI TOMOKI (JP)
ICHIKAWA TAKEO (JP)
KUDO RIICHI (JP)
TAKATORI YASUSHI (JP)
MIZOGUCHI MASATO (JP)
HIRAGURI TAKEFUMI (JP)
NISHIMORI KENTARO (JP)

H04W16/28; H04B7/10; H04J99/00

WO2009002269A1	2008-12-31
WO2008093619A1	2008-08-07
WO2008058109A2	2008-05-15

JP2008211349A	2008-09-11
JP2008098940A	2008-04-24
JPH05145460A	1993-06-11

LIN X. CAI: "A Distributed Multi-User MIMO MAC Protocol for Wireless Local Area Networks", IEEE GLOBECOM, 2008

SHIGA Masatake et al. (JP)
Masatake Shiga (JP)

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