Location based service system and position information updating method thereof
First Claim
Patent Images
1. A position information updating method comprising the steps of:
- calculating a predicted position of the mobile communication terminal;
calculating the actual position of a mobile communication terminal based on global positioning system signals received by the mobile communication terminal;
comparing the actual position with the predicted position; and
based on the result of said comparison, transmitting mobile communication terminal position related information to a position information server.
1 Assignment
0 Petitions
Accused Products
Abstract
A location based service system and a position information updating method thereof are disclosed. The position information updating method includes the steps of positioning an actual position through a global positioning system inside a mobile communication terminal, calculating predicted motion position of the mobile communication terminal, comparing the actual position extracted through the global positioning system with the calculated predicted motion position, and transmitting position related information obtained by the compared result to a position information server.
-
Citations
37 Claims
-
1. A position information updating method comprising the steps of:
-
calculating a predicted position of the mobile communication terminal;
calculating the actual position of a mobile communication terminal based on global positioning system signals received by the mobile communication terminal;
comparing the actual position with the predicted position; and
based on the result of said comparison, transmitting mobile communication terminal position related information to a position information server. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A location based service system comprising:
-
a position information server; and
a mobile communication terminal in wireless communication with said position information server, wherein said position information server is configured to receive position information relating to the actual position of the mobile communication terminal and, after the lapse of a certain amount of time, calculate a predicted position value of the mobile communication terminal based on the received position; and
wherein said mobile communication terminal comprises a global positioning system and a controller, said global positioning system configured to derive actual mobile communication terminal position and said controller configured to calculate a predicted position value, in the same manner as the position information server, and configured to compare the predicted position value to a current, actual position value, said mobile communication terminal configured to transmit to the position information server, depending on the result of the comparison, updated position information relating to the current, actual position of the mobile communication terminal. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
-
24. A mobile communication terminal comprising:
-
a global positioning system configured to calculate, at a first time, actual mobile communication terminal position based on signals received from Global Positioning System satellites;
a controller configured to predict, at a second time subsequent to said first time, the position of the mobile communication terminal based on the calculated actual position, and based on mobile communication terminal velocity and motion angle, said controller further configured to compare the predicted position with an updated, actual position of the mobile communication terminal; and
a transmitter transmitting position related information to a position information server based on the result of the comparison. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
-
-
34. In a mobile communication system, a position information updating method comprising:
-
receiving first position related information for a mobile communication terminal;
calculating a predicted position for the mobile communication terminal based on the first position related information;
determining whether second position related information from the mobile communication terminal has been received;
setting a current position of the mobile communication terminal equal to the predicted position if it is determined that the second position related information has not been received. - View Dependent Claims (35, 36, 37)
-
Specification