Method for transmitting location information

• US 8,081,986 B2
• Filed: 04/28/2006
• Issued: 12/20/2011
• Est. Priority Date: 04/29/2005
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Eun Young, Sim, Dong Hi, Huh, Ji Young, Joe, Moon Jeung
• Primary Examiner(s): Kincaid, Lester
• Assistant Examiner(s): KELLEY, STEVEN SHAUN
• Application Number:
  US11/413,102
• Publication Number:
  US 20060246919A1
• Time in Patent Office: 2,062 Days
• Field of Search: 4554561-457, 455/404.1, 455/404.2
• US Class Current: 455/456.1
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 8/10 between location register and external networks

Abstract

A method for transmitting location information includes the steps of: a) receiving a start message including MO (mobile originated location request) mode information from a first terminal; b) calculating location information of the first terminal; and c) transmitting the calculated first terminal'"'"'s location information according to the MO (mobile originated location request) mode information. A method for transmitting location information in a Secure User Plane Location (SUPL) protocol of a first SUPL Enabled Terminal (SET), a SUPL Location Platform (SLP), and a second SUPL Enabled Terminal (SET) includes the steps of: a) receiving a start message including MO (mobile originated location request) mode information from the first SET; b) calculating location information of the first SET; and c) transmitting the calculated first SET'"'"'s location information to any one of the first SET and the second SET according to the MO (mobile originated location request) mode information.

Claims

1. A method of providing location information of a first SUPL Enabled Terminal (SET) at a Home SUPL location platform (H-SLP) which is a network server to a second SET using a Secure User Plane Location (SUPL) protocol in a communication environment, the method comprising:

receiving, by the H-SLP, a SUPL START message from the first SET initiating a positioning procedure for transferring location information of the first SET to the second SET via the H-SLP, the SUPL START message including a session identifier, SET capabilities, SET-id information which is an identifier of the second SET, and mode type information which designates either one of the first SET or the second SET to receive the location information of the first SET;

transmitting, by the H-SLP, a SUPL RESPONSE message to the first SET, the SUPL RESPONSE message including the session identifier and a positioning method which is to be used for a positioning procedure between the H-SLP and the first SET;

receiving, by the H-SLP, a SUPL POS INIT message from the first SET, the SUPL POS INIT message including the session identifier and SET capabilities;

calculating the location information of the first SET through a direct connection between the H-SLP and the first SET based on the positioning method, the positioning method being one of a SET-assisted positioning method and a SET-based positioning method;

transmitting, by the H-SLP, a SUPL END message to the first SET to inform the end of a SUPL session, the SUPL END message including the session identifier; and

transmitting, by the H-SLP, the location information of the first SET to the second SET, after the SUPL session is finished.

2. The method of claim 1, further comprising checking a roaming state of the first SET.

3. The method of claim 1, wherein the calculation of the location information of the first SET is performed in cooperation with the first SET.

4. The method of claim 1, wherein the location information of the first SET is transmitted to the second SET via a Notified SLP (N-SLP).

5. The method of claim 1, wherein the H-SLP comprises a Home SUPL Location Center (H-SLC) and a Home SUPL Position Center (H-SPC).

6. The method of claim 5, wherein the calculation of the location information of the first SET is performed through a direct connection between the H-SPC and the first SET.

7. The method of claim 6, wherein the SUPL START message is transmitted to the H-SLC.

8. The method of claim 6, wherein the location information is transmitted to the second SET by the H-SLC.

9. The method of claim 1, wherein the first SET is in a non-roaming state in which the first SET is located at a Home Network (HN).

10. The method of claim 1, wherein the positioning method is selected based on the SET capabilities included in the SUPL START message.

11. The method of claim 1, wherein in the step of transmitting the location information of the first SET to the first SET or the second SET, the H-SLP identifies the second SET to which the location information of the first SET is to be sent by the identifier of the second SET indicated by the notified SET-id information received from the first SET, and then transmits the location information to the identified second SET.

12. A method of providing location information of a first SUPL Enabled Terminal (SET) to a second SET using a Secure User Plane Location (SUPL) protocol in a communication environment, the method comprising:

transmitting, by the first SET, a SUPL START message to a Home SUPL location platform (H-SLP) which is a network server, to initiate a positioning procedure for transferring location information of the first SET to the second SET via the H-SLP, the SUPL START message including a session identifier, SET capabilities, SET-id information which is an identifier of the second SET, and mode type information which designates either one of the first SET or the second SET to receive the location information of the first SET;

receiving, by the first SET, a SUPL RESPONSE message from the H-SLP, the SUPL RESPONSE message including the session identifier and a positioning method which is to be used for a positioning procedure between the H-SLP and the first SET;

transmitting, by the first SET, a SUPL POS INIT message to the H-SLP, the SUPL POS INIT message including the session identifier and SET capabilities;

performing a positioning procedure through a direct connection between the H-SLP and the first SET based on the positioning method to calculate the location information of the first SET, the positioning method being one of a SET-assisted positioning method and a SET-based positioning method; and

receiving, by the first SET, a SUPL END message from the H-SLP, the SUPL END message including the session identifier and informing the first SET of an end of a SUPL session,

wherein the location information of the first SET is transmitted by the H-SLP to the second SET.

13. The method of claim 12, wherein the calculation of the location information of the first SET is performed in cooperation with the first SET.

14. The method of claim 12, wherein the location information of the first SET is transmitted to the second SET via a Notified SLP (N-SLP).

15. The method of claim 12, wherein the H-SLP comprises a Home SUPL Location Center (H-SLC) and a Home SUPL Position Center (H-SPC).

16. The method of claim 15, wherein the calculation of the location information of the first SET is performed through a direct connection between the H-SPC and the first SET.

17. The method of claim 16, wherein the SUPL START message is transmitted to the H-SLC.

18. The method of claim 16, wherein the location information is transmitted to the second SET by the H-SLC.

19. The method of claim 12, wherein the first SET is in a non-roaming state in which the first SET is located at a Home Network (HN).

20. The method of claim 12, wherein the positioning method is selected based on the SET capabilities included in the SUPL START message.

21. The method of claim 12, wherein when providing the location information of the first SET to the second SET, the second SET to which the location information of the first SET is to be sent is first identified by the identifier of the second SET indicated by the SET-id information transmitted by the first SET, and then the location information is sent to the identified second SET.