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US 2006/0125685 A1Published application
AGPS system using NTP server and method for determining the location of a terminal using a NTP server
AssigneeSamsung Electronics Co., Ltd.
InventorsJi-Youn Jeon, Jong-Sun Pyo
Life of this patent
Estimating the term…
Abstract
Disclosed is a method for determining the location of a terminal in an AGPS system in a wireless LAN using AGPS data provided from a PDE (position determination entity) and time information provided from a NTP (network time protocol) server.
Claims18
An AGPS (Assisted Global Positioning System) system using a NTP (Network Time Protocol) server in a wireless LAN, which comprises:
- a terminal for sending an AGPS data requesting message and a time information requesting message using a wireless LAN and for determining a current location based on AGPS data and time information received in response to the requesting messages;
- an access point for analyzing a message received from the terminal, delivering the message to a corresponding server according to results of the analysis and for delivering a message received from the server to the terminal;
- a position determination entity for generating AGPS data in response to the AGPS data requesting message received from the access point and for providing the generated AGPS data to the access point;
- and
- an NTP server for generating synchronized time information in response to the time information requesting message received from the access point and providing the generated time information to the access point.
2 more elements
A method for determining the location of a mobile terminal in an AGPS (Assisted Global Positioning System) system using a NTP (Network Time Protocol) server in a wireless LAN, which comprises the steps of:
- when a terminal generates an AGPS data requesting message and a time information requesting message to use location-based services, sending the generated requesting messages to an access point;
- when the access point receives messages from the terminal, analyzing the received messages and delivering respective messages to a position determination entity and a NTP server according to results of the analysis;
- delivering response messages received from the position determination entity and the NTP server to the terminal;
- and
- determining a location of the terminal based on the response messages.
2 more elements
Dependencies are inferred from the claim text.