Method for determining location of UE by using AGPS information

• US 20060063536A1
• Filed: 09/16/2005
• Published: 03/23/2006
• Est. Priority Date: 09/18/2004
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Wuk, Park, Joon-Goo, Kim, Joo-Young
• Granted Patent: US 8,150,415 B2
• Time in Patent Office: Days
• US Class Current: 455/456.100
• CPC Class Codes: G01S 19/05 providing aiding data
• CPC Class Codes: G01S 19/25 involving aiding data received from a cooperating element, e.g. assisted GPS
• CPC Class Codes: G01S 5/0036 of measured values, i.e. measurement on mobile and position calculation on base station
• CPC Class Codes: H04L 63/0407 wherein the identity of one or more communicating identities is hidden cryptographic mechanisms or cryptographic arrangements for anonymous credentials or for identity based cryptographic systems H04L9/00
• CPC Class Codes: H04W 12/02 Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
• CPC Class Codes: H04W 12/30 Security of mobile devices; Security of mobile applications
• CPC Class Codes: H04W 12/63 Location-dependent; Proximity-dependent
• CPC Class Codes: H04W 4/02 Services making use of location information

Abstract

Disclosed is a method for determining a location of a UE by means of AGPS information. The method includes generating by an SLC a pseudo UE ID according to a request for location information of the UE, the pseudo UE ID being used for maintaining security in communication with an SPC, requesting AGPS information for the UE, the location information of which has been requested, to the SPC by means of the pseudo UE ID, and receiving the AGPS information, transferring the received AGPS information to the UE, and receiving GPS signal measurement values using the AGPS information from the UE, requesting a location calculation of the UE for the GPS signal measurement values to the SPC by means of the pseudo UE ID, and receiving calculated location values, and providing the location information of the UE by means of the received location values of the UE.

Claims

1. A method for determining a location of a User Equipment (UE) by means of Assisted Global Positioning System (AGPS) information, the method comprising the steps of:

generating, by an SUPL Location Center (SLC), a pseudo UE ID according to a request for location information of the UE, the pseudo UE ID being used for maintaining security during communication with an SUPL Positioning Center (SPC);

requesting AGPS information for the UE, the location information of which has been requested, to the SPC by means of the pseudo UE ID, and receiving the AGPS information;

transferring the received AGPS information to the UE, and receiving Global Positioning System (GPS) signal measurement values using the AGPS information from the UE;

requesting a location calculation of the UE for the GPS signal measurement values to the SPC by means of the pseudo UE ID, and receiving calculated location values; and

providing the location information of the UE by means of the received location values of the UE.

2. The method as claimed in claim 1, further comprising authenticating a location information requester having requested the location information of the UE.

3. The method as claimed in claim 1, wherein the SPC generates the AGPS information by means of an ID of a cell including the UE according to the request of the AGPS information from the SLC, and transmits the pseudo UE ID and the generated AGPS information to the SLC.

4. The method as claimed in claim 1, wherein the pseudo UE ID includes a sequence number assigned according to an order of UEs, location information of which has been requested.

5. A method for determining a location of a User Equipment (UE) by means of Assisted Global Positioning System (AGPS) information, the method comprising the steps of:

generating, by an SUPL Location Center (SLC), a pseudo UE ID according to input of a request for location information of the UE, the pseudo UE ID being used for maintaining security during communication with an SUPL Positioning Center (SPC);

requesting AGPS information for the UE, the location information of which has been requested, to the SPC by means of the pseudo UE ID, and receiving the AGPS information;

transferring the received AGPS information to the UE, and receiving location values of the UE, the values being calculated by the UE; and

providing the location information of the UE by means of the received location values of the UE.

6. The method as claimed in claim 5, wherein the UE measures precise GPS information by means of the AGPS information transferred through the SLC, calculates the location of the UE by means of the measured GPS information, and transmits the calculated location values to the SLC.

7. The method as claimed in claim 5, wherein the pseudo UE ID includes a sequence number assigned according to an order of UEs, location information of which has been requested.

8. A method for determining a location of a User Equipment (UE) by means of Assisted Global Positioning System (AGPS) information, the method comprising the steps of:

generating, by an SUPL Location Center (SLC), a pseudo UE ID according to a request for location information of the UE, the pseudo UE ID being used for maintaining security during communication with an SUPL Positioning Center (SPC);

requesting AGPS information for the UE, the location information of which has been requested, to the SPC by means of an SLC ID for identifying the SLC and the pseudo UE ID, and receiving the AGPS information;

transferring the received AGPS information to the UE, and receiving Global Positioning System (GPS) signal measurement values using the AGPS information from the UE;

requesting a location calculation of the UE for the GPS signal measurement values to the SPC by means of the SLC ID and the pseudo UE ID, and receiving calculated location values; and

providing the location information of the UE by means of the received location values of the UE.

9. The method as claimed in claim 8, wherein the SPC communicates with a plurality SLCs and identifies a corresponding SLC through the SLC ID.

10. The method as claimed in claim 8, wherein the SPC generates the AGPS information by means of an ID of a cell including the UE according to the request of the AGPS information, and transmits the generated AGPS information to a SLC corresponding to the SLC ID.

11. The method as claimed in claim 8, wherein the SPC calculates the location of the UE by means of the GPS signal measurement values and GPS satellite information according to a calculation request for the location of the UE.

12. The method as claimed in claim 8, wherein the pseudo UE ID includes a sequence number assigned according to an order of UEs, location information of which has been requested.

13. A method for determining a location of a User Equipment (UE) by means of Assisted Global Positioning System (AGPS) information, the method comprising the steps of:

generating, by an SUPL Location Center (SLC), a pseudo UE ID according to input of a request for location information of the UE, the pseudo UE ID being used for maintaining security during communication with an SUPL Positioning Center (SPC);

requesting AGPS information for the UE, the location information of which has been requested, to the SPC by means of an SLC ID for identifying the SLC and the pseudo UE ID, and receiving the AGPS information;

transferring the received AGPS information to the UE, and receiving location values of the UE calculated using the AGPS information from the UE; and

providing the location information of the UE by means of the received location values of the UE.

14. The method as claimed in claim 13, wherein the SPC communicates with a plurality SLCs and identifies a corresponding SLC through the SLC ID.

15. The method as claimed in claim 13, wherein the UE measures precise GPS information by means of the AGPS information transferred through the SLC, calculates the location of the UE by means of the measured GPS information, and transmits the calculated location values to the SLC.

16. The method as claimed in claim 13, wherein the pseudo UE ID includes a sequence number assigned according to an order of UEs, location information of which has been requested.