Message transmission in wireless access system

• US 20060084453A1
• Filed: 10/03/2005
• Published: 04/20/2006
• Est. Priority Date: 10/04/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kwak, Yong-Won, Kim, Yong-Ho, Ryu, Ki-Seon, Kim, Beom-Joon
• Granted Patent: US 7,609,638 B2
• Time in Patent Office: Days
• US Class Current: 455/517
• CPC Class Codes: H04L 1/1848 Time-out mechanisms
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04W 60/06 De-registration or detaching

Abstract

A method for transmitting messages to alter the operating status between a mobile station and a base station in a wireless access system comprises, at the mobile station, transmitting a first message to the base station, setting a first count to a first predetermined value and enabling a first, the first message requesting a alteration in operating status between the mobile station and the base station, whereupon expiration of the first timer before receiving a second message from the base station, the count is decremented and, if the count is above a second predetermined value, the first timer is reset and the first message is retransmitted to the base station. The method also comprises, at a base station, receiving the first message, transmitting a second message to the mobile station and enabling a second timer, whereupon expiration of the second timer, the alteration in operating status is effected.

Claims

1. A method for transmitting messages to alter the operating status between a mobile station and a base station in a wireless access system, the method comprising:

at the mobile station, transmitting a first message to the base station, setting a first count to a first predetermined value and enabling a first timer, the first message requesting a alteration in operating status between the mobile station and the base station, whereupon expiration of the first timer before receiving a second message from the base station, the count is decremented and, if the count is above a second predetermined value, the first timer is reset and the first message is retransmitted to the base station; and

at a base station, receiving the first message, transmitting a second message to the mobile station and enabling a second timer, the second message acknowledging the mobile station request for an alteration in operating status, whereupon expiration of the second timer, the alteration in operating status is effected and upon receiving another first message, the second message is retransmitted to the mobile station and the second timer is reset.

2. The method of claim 1, wherein the first message is a de-registration request (DREG-REQ), the first timer is a de-registration command standby timer, the first count is a de-registration request retransmission count, the alteration in operating status is a transition to an idle mode, the second message is a de-registration command (DREG-CMD), and the second timer is a management resource holding timer.

3. The method of claim 1, further comprising:

at the mobile station, performing a scan operation in response to receiving the second message from the base station.

4. The method of claim 1, further comprising:

at the mobile station, entering idle mode in response to receiving the second message from the base station.

5. A method for altering the operating status between a mobile station and a base station in a wireless access system, the method comprising:

receiving a first message, the first message requesting the alteration in operating status;

transmitting a second message, the second message acknowledging the request for an alteration in operating status;

enabling a timer; and

upon expiration of the timer, effecting the alteration in operating status and upon receiving another first message, retransmitting the second message and resetting the timer.

6. The method of claim 5, wherein the first message is a de-registration request (DREG-REQ), the alteration in operating status is a transition to an idle mode, the second message is a de-registration command (DREG-CMD), and the timer is a management resource holding timer.

7. A method for altering the operating status between a mobile station and a base station in a wireless access system, the method comprising:

transmitting a first message, the first message indicating the alteration in operating status;

enabling a first timer and setting a count to a first predetermined value; and

enabling a second timer,

whereupon expiration of the first timer before receiving a second message, the count is decremented and, if the count is above a predetermined value, the first timer is reset and the first message is retransmitted and, whereupon expiration of the second timer, the alteration in operating status is effected.

8. The method of claim 7, wherein the first message is an unsolicited de-registration command (DREG-CMD), the alteration in operating status is a transition to an idle mode, the second message is one of a de-registration request (DREG-REQ) and a de-registration acknowledgment (DREG-ACK), the first timer is a de-registration response standby timer, and the second timer is a management resource holding timer.

9. A system for transmitting messages to alter the operating status between the mobile station and a base station in a wireless access system, the system comprising:

at the mobile station, means for transmitting a first message to the base station, setting a first count to a first predetermined value and enabling a first timer, the first message requesting a alteration in operating status between the mobile station and the base station, whereupon expiration of the first timer before receiving a second message from the base station, the count is decremented and, if the count is above a second predetermined value, the first timer is reset and the first message is retransmitted to the base station; and

at a base station, means for receiving the first message, transmitting a second message to the mobile station and enabling a second timer, the second message acknowledging the mobile station request for an alteration in operating status, whereupon expiration of the second timer, the alteration in operating status is effected and upon receiving another first message, the second message is retransmitted to the mobile station and the second timer is reset.

10. The system of claim 9, wherein the first message is a de-registration request (DREG-REQ), the first timer is a de-registration command standby timer, the first count is a de-registration request retransmission count, the alteration in operating status is a transition to an idle mode, the second message is a de-registration command (DREG-CMD), and the second timer is a management resource holding timer.

11. The system of claim 9, further comprising:

at the mobile station, means for performing a scan operation in response to receiving the second message from the base station.

12. The system of claim 9, further comprising:

at the mobile station, means for entering idle mode in response to receiving the second message from the base station.

13. A network for altering the operating status between a mobile station and a base station in a wireless access system, the network comprising:

means for receiving a first message, the first message requesting the alteration in operating status;

means for transmitting a second message, the second message acknowledging the request for an alteration in operating status;

means for enabling a timer; and

means for effecting the alteration in operating status upon expiration of the timer, management and means for retransmitting the second message and resetting the timer upon receiving another first message.

14. The network of claim 13, wherein the first message is a de-registration request (DREG-REQ), the alteration in operating status is a transition to an idle mode, the second message is a de-registration command (DREG-CMD), and the timer is a management resource holding timer.

15. A network for altering the operating status between a mobile station and a base station in a wireless access system, the network comprising:

means for transmitting a first message, the first message indicating the alteration in operating status;

means for enabling a first timer and setting a count to a first predetermined value; and

means for enabling a second timer,

whereupon expiration of the first timer before receiving a second message, the count is decremented and, if the count is above a predetermined value, the first timer is reset and the first message is retransmitted and, whereupon expiration of the second timer, the alteration in operating status is effected.

16. The network of claim 15, wherein the first message is an unsolicited de-registration command (DREG-CMD), the alteration in operating status is a transition to an idle mode, the second message is one of a de-registration request (DREG-REQ) and a de-registration acknowledgment (DREG-ACK), the first timer is a de-registration response standby timer, and the second timer is a management resource holding timer.