Method of controlling idle mode initiation of a mobile station in a broadband wireless access system

• US 8,103,276 B2
• Filed: 06/05/2007
• Issued: 01/24/2012
• Est. Priority Date: 06/05/2006
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Ryu, Ki Seon
• Primary Examiner(s): Afshar, Kamran
• Assistant Examiner(s): Zewari, Sayed T
• Application Number:
  US11/758,290
• Publication Number:
  US 20070298725A1
• Time in Patent Office: 1,694 Days
• Field of Search: 455572-574
• US Class Current: 455/435.1
• CPC Class Codes: H04W 60/06 De-registration or detaching
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method of controlling entry into an idle mode in a wireless communication system is disclosed. More specifically, the method includes receiving from a base station (BS) a first message including a first action code, wherein the first action code requests a mobile station (MS) to de-register from the BS and initiate idle mode, and if the MS has pending uplink data, transmitting a second message including a second action code, wherein the second action code rejects the request from the BS.

Claims

1. A method of controlling an idle mode entry of a mobile station (MS) in a wireless communication system, the method comprising:

receiving, by the MS, a message including a first action code from a base station (BS), wherein the first action code orders that the MS initiate idle mode;

transmitting, by the MS in response to the message including the first action code, a message including a second action code to the BS when the MS has uplink data to transmit, in order to maintain normal operation, wherein the second action code rejects the order that the MS initiate idle mode;

transmitting, by the MS in response to the message including the first action code, a message including a third action code to the BS when the MS is ready to enter idle mode, wherein the third action code requests that the BS de-register the MS from the BS;

receiving, by the MS, a message including a fourth action code from the BS in response to the message including the third action code, wherein the fourth action code indicates that the MS is to maintain normal operation; and

maintaining normal operation according to the message including the fourth action code.

2. The method of claim 1, further comprising:

transmitting, by the MS, the uplink data to the BS upon transmitting the message including the second action code.

3. The method of claim 1, further comprising:

receiving, by the MS, downlink data from the BS upon receiving the message including the fourth action code.

4. The method of claim 1, wherein the message including the first action code is an unsolicited message.

5. The method of claim 1, wherein the message including the first action code further includes a time period for retransmission of the message including the second action code.

6. The method of claim 1,

wherein the message including the first action code is a de-registration command (DREG-CDM) message, and

wherein the message including the second action code is a de-registration request (DREG-REQ) message.

7. The method of claim 1, wherein the message including the first action code further includes a parameter.

8. A method of controlling an idle mode entry of a mobile station (MS) in a wireless communication system, the method comprising:

transmitting, by a base station (BS) to the MS, a message including a first action code, wherein the first action code orders that the MS initiate idle mode;

receiving, by the BS, a message from the MS in response to the message including the first action code;

maintaining connection information of the MS if the message from the MS includes a second action code, wherein the second action code rejects the order that the MS initiate idle mode; and

if the message from the MS includes a third action code requesting that the BS de-register the MS from the BS, transmitting, by the BS to the MS, a message including a fourth action code and maintaining the connection information of the MS upon rejecting the request that the BS de-register the MS, wherein the fourth action code indicates that the MS is to maintain normal operation.

9. The method of claim 8, further comprising:

receiving uplink data from the MS if the message from the MS included the second action code.

10. The method of claim 8, further comprising:

transmitting, by the BS to the MS, downlink data upon transmitting the message including the fourth action code.

11. The method of claim 8,

wherein the message including the first action code is a de-registration command (DREG-CDM) message, and

wherein the message including the second action code is a de-registration request (DREG-REQ) message.

15. The method of claim 8, wherein the message including the first action code further includes a time period for retransmission of the message including the second action code.

16. The method of claim 8, wherein the message including the first action code is an unsolicited message.

12. A mobile station (MS) comprising:

a microprocessor; and

at least one antenna configured to receive from a base station (BS) a message including a first action code, wherein the first action code orders that the MS initiate idle mode,

wherein the at least one antenna is further configured to transmit, when the microprocessor determines that uplink data is to be transmitted, a message including a second action code to the BS in response to the message including the first action code, in order to maintain normal operation, wherein the second action code rejects the order that the MS initiate idle mode;

wherein the at least one antenna is further configured to transmit, when the microprocessor determines that there is no uplink data to be transmitted, a message including a third action code to the BS in response to the first message including the first action code, wherein the third action code requests that the BS de-register the MS from the BS;

wherein the at least one antenna is further configured to receive from the BS a message including a fourth action code in response to the message including the third action code, wherein the fourth action code indicates that the MS is to maintain normal operation; and

wherein the microprocessor is configured to maintain the normal operation in response to the receipt of the message including the fourth action code.

13. The mobile station (MS) of claim 12, wherein the at least one antenna is further configured to transmit the uplink data to the BS upon transmitting the message including the second action code.

14. The mobile station (MS) of claim 12,

wherein the message including the first action code is a de-registration command (DREG-CDM) message, and

wherein the message including the second action code is a de-registration request (DREG-REQ) message.

17. The mobile station (MS) of claim 12, wherein the at least one antenna is further configured to transmit the uplink data to the BS upon transmitting the message including the second action code.

18. The mobile station (MS) of claim 12, wherein the at least one antenna is further configured to receive downlink data from the BS upon receiving the message including the fourth action code.

19. The mobile station (MS) of claim 12, wherein the message including the first action code is an unsolicited message.