Position measuring method and mobile communication terminal
First Claim
1. A method for position measurement which measures a current location at which a mobile communication terminal exists, comprising steps of:
- determining GPS position measurement technique, said technique corresponding to one selected from among an assisted GPS position measurement and an autonomous GPS position measurement,wherein the assisted GPS position measurement is a position measurement using assistance information which includes information for capturing a GPS satellite, wherein the assistance information, when necessary, is acquired from a location information server which holds the assistance information, andwherein the autonomous GPS position measurement is a position measurement using a GPS satellite which does not use the assistance information;
performing assisted GPS position measurement when said determining corresponds to the assisted GPS position measurement; and
performing autonomous GPS position measurement when said determining corresponds to the autonomous GPS position measurement;
the method further comprising steps of;
determining a specified position measuring technique at which,when a request for position measuring is received, and when a position measuring technique specified is a cell ID position measuring in which location information of a cell in a range of which the mobile communication terminal exists is acquired, the cell ID position measuring is determined to be performed, and moreover,in any one of two cases namely a case in which the position measuring technique specified is a GPS position measurement technique which includes the assisted GPS position measurement and the autonomous GPS position measurement, and a case in which the position measuring technique is not specified, a GPS position measurement is performed; and
cell ID position measuring at which, when the cell ID position measuring is determined at the step of determining the specified position measuring technique, the cell ID position measuring is performed, whereinwhen the GPS position measurement is determined to be performed at the step of determining the specified position measuring technique, the step of determining GPS position measurement technique is executed.
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0 Petitions
Accused Products
Abstract
When a user of a mobile communication terminal makes a request for a position-measuring of a current location, at step S101, a position-measuring method determining section checks a position-measuring method specified. When the method specified is a “cell ID position-measuring”, and it is performed, when the method specified is a “base station radio waves position-measuring”; a base station radio waves position-measuring is performed, when the method specified is a “GPS position-measuring” or a “not specified”, at step S102, a judgment of whether an area in which the mobile communication terminal exist is an area suitable for data communication is made. When the judgment is negative, an autonomous GPS position-measuring is performed. When the judgment is affirmative, an assisted GPS position-measuring is performed. In this case, when the assisted GPS position-measuring has failed, in process to deal with failure of assisted GPS position-measuring at step S108, in a case of predetermined conditions, further the autonomous GPS position-measuring or a supplementary cell ID position-measuring is performed.
18 Citations
10 Claims
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1. A method for position measurement which measures a current location at which a mobile communication terminal exists, comprising steps of:
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determining GPS position measurement technique, said technique corresponding to one selected from among an assisted GPS position measurement and an autonomous GPS position measurement, wherein the assisted GPS position measurement is a position measurement using assistance information which includes information for capturing a GPS satellite, wherein the assistance information, when necessary, is acquired from a location information server which holds the assistance information, and wherein the autonomous GPS position measurement is a position measurement using a GPS satellite which does not use the assistance information; performing assisted GPS position measurement when said determining corresponds to the assisted GPS position measurement; and performing autonomous GPS position measurement when said determining corresponds to the autonomous GPS position measurement; the method further comprising steps of; determining a specified position measuring technique at which, when a request for position measuring is received, and when a position measuring technique specified is a cell ID position measuring in which location information of a cell in a range of which the mobile communication terminal exists is acquired, the cell ID position measuring is determined to be performed, and moreover, in any one of two cases namely a case in which the position measuring technique specified is a GPS position measurement technique which includes the assisted GPS position measurement and the autonomous GPS position measurement, and a case in which the position measuring technique is not specified, a GPS position measurement is performed; and cell ID position measuring at which, when the cell ID position measuring is determined at the step of determining the specified position measuring technique, the cell ID position measuring is performed, wherein when the GPS position measurement is determined to be performed at the step of determining the specified position measuring technique, the step of determining GPS position measurement technique is executed. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A mobile communication terminal comprising:
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a position measurement technique determining means which determines a position measurement technique which includes determining to perform one of an assisted GPS position measurement which is a position measurement using assistance information which includes information for capturing a GPS satellite, wherein the assistance information when necessary, is acquired from a location information server which holds the assistance information, and an autonomous GPS position measurement which is a position measurement using a GPS satellite which does not use the assistance information; an assisted GPS position measuring means which performs the assisted GPS position measurement; and an autonomous GPS position measuring means which performs the autonomous GPS position measurement; further comprising; a cell ID position measuring means which performs a cell ID position measurement which is a position measurement acquiring location information of a cell in a range of which the mobile communication terminal exists, wherein when a request for position measurement is received, the position measurement technique determining means further determines to perform the cell ID position measurement when the cell ID position measurement is specified as the position measurement technique, wherein when a request for position measurement has been received that specifies a GPS position measurement which includes the assisted GPS position measurement and the autonomous GPS position measurement, the position measurement technique determining means determines that a GPS position measurement technique will be performed, wherein when a request for position measurement has been received that does not specify the position measurement technique, the position measurement technique determining means determines that a GPS position measurement technique will be performed. - View Dependent Claims (8, 9, 10)
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Specification