Title:
MOBILE COMMUNICATION METHOD, RADIO BASE STATION AND MOBILE STATION
Document Type and Number:
WIPO Patent Application WO/2010/103990
Kind Code:
A1
Abstract:
A radio base station (eNB) comprises: a downstream data restart processing unit (12) that is configured to transmit an RA preamble allocation signal to a mobile station (UE) when having detected a measurement trigger in a case where no synchronization has been established in an uplink between the radio base station (eNB) and the mobile station (UE); and a propagation delay calculating unit (14) that is configured to calculate a propagation delay in the uplink in response to the reception of an RA preamble allocated by the RA preamble allocation signal.
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Inventors:
ISHII MINAMI (JP)
ABETA SADAYUKI (JP)
ABETA SADAYUKI (JP)
Application Number:
PCT/JP2010/053547
Publication Date:
September 16, 2010
Filing Date:
March 04, 2010
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
ISHII MINAMI (JP)
ABETA SADAYUKI (JP)
ISHII MINAMI (JP)
ABETA SADAYUKI (JP)
International Classes:
G01S5/02; G01S5/14; G01S13/74; H04W64/00
Domestic Patent References:
WO2009013810A1 | 2009-01-29 | |||
WO2009025236A1 | 2009-02-26 | |||
WO2008123206A1 | 2008-10-16 | |||
WO2008108228A1 | 2008-09-12 |
Foreign References:
JP2006148457A | 2006-06-08 | |||
JP2001177469A | 2001-06-29 | |||
JP2007322237A | 2007-12-13 | |||
JP2007116742A | 2007-05-10 | |||
JP2008278273A | 2008-11-13 |
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (JP)
Hidekazu Miyoshi (JP)
Hidekazu Miyoshi (JP)
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