SERVER, METHOD AND PROGRAM FOR CALCULATING MEASUREMENT POINT OF RADIO COMMUNICATION QUALITY

Title:

SERVER, METHOD AND PROGRAM FOR CALCULATING MEASUREMENT POINT OF RADIO COMMUNICATION QUALITY

Document Type and Number:

Japanese Patent JP2012015950

Kind Code:

A

Abstract:

To obtain accurate information on degradation of radio communication quality or interruption of radio communication.

A server includes: a location information derivation unit which acquires, from a terminal, information correlating a latitude/longitude calculated from signals received from a group of GPS satellites by the terminal with clock time of reception at the terminal and acceleration/geomagnetism/clock time information correlating acceleration and geomagnetism measured by the terminal with clock time of measurement to derive a moving path of the terminal; and a radio communication quality degradation information derivation unit which acquires, from the terminal, information correlating field intensity and interference level of a radio wave measured by the terminal with clock time of measurement and correlates the information with the moving path with respect to clock time to derive information of identifying a spot, and the like, where radio communication quality has degraded. The location information derivation unit temporally integrates the acceleration included in the acceleration/geomagnetism/clock time information starting at the latitude/longitude calculated from the positioning by the GPS and along a direction of movement indicated by the acceleration/geomagnetism/clock time information to derive the moving path.

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Inventors:

SAITO KATSUMI

Application Number:

JP2010152918A

Publication Date:

January 19, 2012

Filing Date:

July 05, 2010

Export Citation:

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Assignee:

NEC CORP

International Classes:

H04W24/10; G01S5/14; G01S19/14; G01S19/49; H04M3/00; H04W64/00; H04W88/18

Domestic Patent References:

JP2005204073A	2005-07-28
JP2002232344A	2002-08-16
JPH0865737A	1996-03-08
JPH07298336A	1995-11-10
JP2004233058A	2004-08-19
JP2008042628A	2008-02-21
JP2005204073A	2005-07-28
JP2002232344A	2002-08-16

Foreign References:

WO2010059935A1	2010-05-27
WO2007119314A1	2007-10-25

Attorney, Agent or Firm:

Michio Nagai
Masao Sekiguchi
Takamasa Nakano

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