METHOD FOR PERFORMING LOCATION UPDATE OF MOBILE STATION IN IDLE MODE

• US 20100035633A1
• Filed: 08/10/2009
• Published: 02/11/2010
• Est. Priority Date: 08/10/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Gi Won, Ryu, Ki Seon, Kim, Yong Ho
• Granted Patent: US 8,335,518 B2
• Time in Patent Office: Days
• US Class Current: 455/456.100
• CPC Class Codes: H04W 60/04 using triggered events
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Abstract

A method for performing location update in various manners when a mobile station (MS) travels between paging groups in a wireless access system. A method for performing location update of an MS includes steps of transmitting a ranging request message (REG-REQ) including mobility information to a base station, wherein the mobility information represent a mobility of the mobile station; and receiving a ranging response message (RNG-RSP) including paging group information related with new paging group from the base station, wherein the new paging group is assigned based on the mobility information.

Claims

1. A method for performing location update of a mobile station (MS) in an idle mode, the method comprising:

transmitting a ranging request message (REG-REQ) including mobility information to a base station, wherein the mobility information represent a mobility of the mobile station; and

receiving a ranging response message (RNG-RSP) including paging group information related with new paging group from the base station,

wherein the new paging group is assigned based on the mobility information.

2. The method according to claim 1, wherein the mobility indicates a speed of the mobile station as one of slow, medium, and fast.

3. The method according to claim 1, further comprising:

transmitting a deregistration request (DREG-REQ) message to initiate the idled mode, to the base station; and

receiving a deregistration command (DREG-CMD) message allowing an initiation of the idle mode.

4. The method according to claim 1, wherein the mobile station is assigned to one or more paging group.

5. The method according to claim 4, wherein a paging group of the one or more paging group is primary paging group and rest of the one or more paging group is secondary paging group.

6. The method according to claim 5, wherein the primary paging group is a large paging group and the secondary paging group is a small paging group.

7. The method according to claim 5, wherein the primary paging group is a small paging group and the secondary paging group is a large paging group.

8. The method according to claim 5, wherein a size of the primary paging group and a size of the secondary paging group are different each other.

9. The method according to claim 1, wherein the base station is belonged to one or more paging groups.

10. A method for supporting a location update of a mobile station (MS) in an idle mode, the method comprising:

receiving a ranging request message (REG-REQ) including mobility information from the mobile station, wherein the mobility information represent a mobility of the mobile station; and

transmitting a ranging response message (RNG-RSP) including paging group information related with new paging group to the mobile station,

wherein the new paging group is assigned based on the mobility information.

11. The method according to claim 10, wherein the mobility indicates a speed of the mobile station as one of slow, medium, and fast.

12. The method according to claim 10, further comprising:

receiving a deregistration request (DREG-REQ) message to initiate the idled mode, from the mobile station; and

transmitting a deregistration command (DREG-CMD) message allowing an initiation of the idle mode, to the mobile station.

13. The method according to claim 10, wherein the mobile station is assigned to one or more paging group.

14. The method according to claim 13, wherein a paging group of the one or more paging group is primary paging group and rest of the one or more paging group is secondary paging group.

15. The method according to claim 14, wherein the primary paging group is a large paging group and the secondary paging group is a small paging group.

16. The method according to claim 14, wherein the primary paging group is a small paging group and the secondary paging group is a large paging group.

17. The method according to claim 14, wherein a size of the primary paging group and a size of the secondary paging group are different each other.

18. The method according to claim 10, wherein the base station is belonged to one or more paging groups.

19. A mobile station for performing location update in an idle mode, the mobile station comprising:

means for transmitting a ranging request message (REG-REQ) including mobility information to a base station, wherein the mobility information represent a mobility of the mobile station; and

means for receiving a ranging response message (RNG-RSP) including paging group information related with new paging group from the base station,

wherein the new paging group is assigned based on the mobility information.

20. A base station (BS) for supporting a location update of a mobile station (MS) in an idle mode, the base station comprising:

means for receiving a ranging request message (REG-REQ) including mobility information from the mobile station, wherein the mobility information represent a mobility of the mobile station; and

means for transmitting a ranging response message (RNG-RSP) including paging group information related with new paging group to the mobile station,

wherein the new paging group is assigned based on the mobility information.