Title:
COMPACT BASE STATION APPARATUS AND FRAME TIMING DIFFERENCE INFORMATION ACQUIRING METHOD
Document Type and Number:
WIPO Patent Application WO/2011/108202
Kind Code:
A1
Abstract:
Provided is a compact base station apparatus (HeNB) whereby frame timing can precisely be synchronized between HeNB and MeNB, thereby suppressing the interference in an upstream channel. In HeNB (100), which forms a cell smaller than a cell formed by MeNB, a frame timing detecting unit (111) detects, based on a sync signal received from MeNB, the frame timing of MeNB; a control unit (116) uses the frame timing of MeNB to set the frame timing of a downstream channel in HeNB (100); a transmission RF unit (118) transmits, in accordance with the frame timing of the downstream channel in HeNB (100), a preamble to MeNB; and a TA command extracting unit (114) acquires, from a response signal responsive to the preamble, information indicating a difference in frame timing between MeNB and HeNB (100).
Inventors:
NANRI MASAHIKO
LI JIFENG
OHSAKI YOSHIHARU
INABA ICHIROU
LI JIFENG
OHSAKI YOSHIHARU
INABA ICHIROU
Application Number:
PCT/JP2011/000832
Publication Date:
September 09, 2011
Filing Date:
February 15, 2011
Export Citation:
Assignee:
PANASONIC CORP (JP)
NANRI MASAHIKO
LI JIFENG
OHSAKI YOSHIHARU
INABA ICHIROU
NANRI MASAHIKO
LI JIFENG
OHSAKI YOSHIHARU
INABA ICHIROU
International Classes:
H04W16/16; H04W56/00; H04W92/20
Other References:
MOTOROLA: "HeNB Interference Coordination: An Alternative to X2", 3GPP TSG-RAN WG4 MEETING #53 R4-094633, 8 November 2009 (2009-11-08), Retrieved from the Internet [retrieved on 20110510]
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Koichi Washida (JP)
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Claims: