LOCATION INFORMATION DECISION METHOD IN INTEGRATED TERMINAL

• US 20120062415A1
• Filed: 02/03/2011
• Published: 03/15/2012
• Est. Priority Date: 09/13/2010
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: HWANG, Hyungu, CHUNG, Hee Sang
• Application Number:
  US13/020,163
• Publication Number:
  US 20120062415A1
• Time in Patent Office: Days
• US Class Current: 342/357.29
• CPC Class Codes: G01S 19/48 by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
• CPC Class Codes: G01S 5/021 Calibration, monitoring or correction G01S5/0252 takes precedence

Abstract

Provided is a method of efficiently determining a location of a terminal. The method includes receiving both of a GPS signal and a mobile communication signal. When the GPS signal is not received, a location calculated using the mobile communication signal is determined as the location of the terminal.

Claims

1. A method for obtaining location information of a terminal, comprising:

obtaining location information of a wireless Local Area Network (LAN);

broadcasting the location information of the wireless LAN based on the obtained information; and

obtaining the location information broadcasted from the wireless LAN as the location information of the terminal.

2. A method for determining location information of a terminal provided with a modem block for receiving a Global Positioning System (GPS) signal and a mobile communication signal, comprising

setting the modem block to receive the GPS signal and the mobile communication signal;

checking whether the GPS signal is received;

determining a location of the terminal based on the GPS signal in the case that the GPS signal is received;

determining a location calculated using the mobile communication signal as the location of the terminal in the case that the GPS signal is not received;

detecting a time point when the GPS signal is blocked for correcting the location information of the terminal;

calculating an error of the location calculated using the mobile communication signal based on a location calculated using a lastly received GPS signal; and

correcting the location calculated using the mobile communication signal as much as the calculated error in a GPS signal shadow area.

4. The method of claim 2, further comprising:

storing a location where the GPS signal is lastly received for a non-periodic trial for receiving the GPS signal; and

trying to receive the GPS signal when the location calculated using the mobile communication signal approaches the stored location.

3. (canceled)

5. A method for allowing an integrated terminal to try to receive a wireless signal, comprising:

allowing the integrated terminal to obtain additional location information;

determining whether the wireless signal is in an area where the wireless signal is receivable based on the obtained additional location information; and

trying to receive the wireless signal only in the area where the wireless signal is receivable according to a result of the determining.

6. The method of claim 5, wherein the wireless receiver is a GPS receiver and the wireless signal desired to be received is a GPS signal.