Apparatus and method for managing tracking area list in wireless communication system

• US 10,039,078 B2
• Filed: 12/04/2012
• Issued: 07/31/2018
• Est. Priority Date: 12/05/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Won, Jeong-Jae, Abhishek, Roy, Kim, Dae-Joong, Kim, Han-Seok, Cha, Hwa-Jin, Choi, Jung-Min
• Primary Examiner(s): Miah, Liton
• Application Number:
  US14/363,293
• Publication Number:
  US 20140349689A1
• Time in Patent Office: 2,065 Days
• CPC Class Codes: H04W 60/04 using triggered events
• CPC Class Codes: H04W 68/02 Arrangements for increasing efficiency of notification or paging channel

Abstract

Managing a tracking area list in a wireless communication system is provided. An operation of a Mobile Station (MS) includes transmitting a request for tracking area update for a 1st tracking area, receiving a tracking area list to which the 1st tracking area and a 2nd tracking area are added, and updating a stored tracking area list by the tracking area list to which the 1st tracking area and the 2nd tracking area are added.

Claims

1. A method for an operation of a terminal in a wireless communication system, the method comprising:

transmitting a first message for requesting first information for a tracking area;

receiving, in response to the first message, a second message including second information for the tracking area and at least one other tracking area; and

generating a first list by adding the tracking area and the at least one other tracking area to a second list of the terminal,

wherein the at least one other tracking area comprises at least one of

a first tracking area adjacent to the tracking area, in which a number of transmissions of random access signals exceeds a threshold, or a second tracking area, wherein the tracking area and the second tracking area are common in tracking area lists of a plurality of terminals.

2. The method of claim 1, wherein the first tracking area is a congestion tracking area where at least one of an access attempt count through a random access channel, an access failure count, or an access failure rate exceeds a threshold.

3. The method of claim 1, wherein the first tracking area and the second tracking area are comprised in a common mobile profile presented in the tracking area lists of the plurality of terminals.

4. A method for operation of a node managing a mobility of a terminal in a wireless communication system, the method comprising:

receiving a first message for requesting first information for a tracking area;

generating, in response to the first message, a first list by adding the tracking area and at least one other tracking area to a second list of the terminal; and

transmitting a second message including second information regarding the first list,

wherein the at least one other tracking area comprises at least one of

a first tracking area adjacent to the tracking area, in which a number of transmissions of random access signals exceeds a threshold, or a second tracking area, wherein the tracking area and the second tracking area are common in tracking area lists of a plurality of terminals.

5. The method of claim 4, wherein the

first tracking area is a congestion tracking area where at least one of an access attempt count through a random access channel, an access failure count, or an access failure rate exceeds a threshold.

6. The method of claim 5, further comprising:

receiving at least one report on cell congestion occurrence from each of at least one base station (BS); and

determining the congestion tracking area based on the at least one report.

7. The method of claim 6, wherein the determining of the congestion tracking area comprises:

determining a ranking of congestion for each of tracking areas based on the at least one report; and

determining the congestion tracking area among the tracking areas according to the ranking.

8. The method of claim 6, wherein the determining of the congestion tracking area comprises receiving a notification of the congestion tracking area from a node controlling a network configuration.

9. The method of claim 5, wherein the tracking area and the second tracking area are comprised in a common mobile profile presented in the tracking area lists of the plurality of terminals.

10. The method of claim 9, further comprising:

comparing the tracking area lists of each of the plurality of terminals with each other; and

identifying the same mobile profile presented in the tracking area lists of each of the plurality of terminals.

11. The method of claim 9, further comprising receiving a notification of the common mobile profile from a node controlling a network configuration.

12. A method of operation of a node controlling a network configuration in a wireless communication system, the method comprising:

generating first information to determine a group comprising a tracking area and a at least one other tracking area; and

transmitting the first information to a node managing a mobility of terminals,

wherein the node managing a mobility of terminals transmits a first message including second information for the tracking area and the at least one other tracking area responsive to receiving a second message for requesting third information for the tracking area, and

wherein the at least one other tracking area comprises at least one of

a first tracking area adjacent to the tracking area, in which a number of transmissions of random access signals exceeds a threshold, or a second tracking area, wherein the tracking area and the second tracking area are common in tracking area lists of a plurality of terminals.

13. The method of claim 12, wherein the generating of the first information comprises:

receiving at least one report on cell congestion occurrence from each of at least one base station (BS); and

determining a congestion tracking area based on the at least one report,

wherein the first tracking area is the congestion tracking area.

14. The method of claim 13, wherein the determining of the congestion tracking area comprises:

determining a ranking of congestion for each of tracking areas based on the at least one report; and

determining the congestion tracking area among the tracking areas according to the ranking.

15. The method of claim 12, wherein the generating of the first information comprises:

receiving the tracking area lists of each of the plurality of terminals from the node managing a mobility of terminals; and

identifying the same mobile profile presented in the tracking area lists of each of the plurality of terminals.

16. An apparatus for an operation of a terminal in a wireless communication system, the apparatus comprising:

at least one transceiver configured to;

transmit a first message for requesting first information for a tracking area;

receive, in response to the first message, a second message including second information for the tracking area and at least one other tracking area; and

at least one processor configured to generate a first list by adding the tracking area and the at least one other tracking area to a second list of the terminal,

wherein the at least one other tracking area comprises at least one of a first tracking area adjacent to the tracking area, in which a number of transmissions of random access signals exceeds a threshold, or a second tracking area, wherein the tracking area and the second tracking area are common in tracking area lists of a plurality of terminals.

17. The apparatus of claim 16, wherein the first tracking area is a congestion tracking area where at least one of an access attempt count through a random access channel, an access failure count, or an access failure rate exceeds a threshold.

18. The apparatus of claim 16, wherein the tracking area and the second tracking area are comprised in a common mobile profile presented in the tracking area lists of the plurality of terminals.

19. An apparatus for operation of a node managing a mobility of a terminal in a wireless communication system, the apparatus comprising:

at least one transceiver configured to receive a first message for requesting first information for a tracking area; and

at least one processor configured to generate, in response to the first message, a first list by adding the tracking area and at least one other tracking area to a second list of the terminal,

wherein the at least one transceiver is further configured to transmit a second message including second information regarding the first list,

wherein the at least one other tracking area comprises at least one of a first tracking area adjacent to the tracking area, in which a number of transmissions of random access signals exceeds a threshold, or a second tracking area, wherein the tracking area and the second tracking area are common in tracking area lists of a plurality of terminals.

20. The apparatus of claim 19, wherein the first tracking area is a congestion tracking area where at least one of an access attempt count through a random access channel, an access failure count, or an access failure rate exceeds a threshold.

21. The apparatus of claim 20, wherein the at least one transceiver is further configured to receive at least one report on cell congestion occurrence from each of at least one base station (BS),

wherein the at least one processor is further configured to determine the congestion tracking area based on the at least one report.

22. The apparatus of claim 21, wherein the at least one processor is further configured to determine a ranking of congestion for each of tracking areas based on the at least one report, and determine the congestion tracking area among the tracking areas according to the ranking.

23. The apparatus of claim 20, wherein the at least one transceiver is further configured to receive a notification of the congestion tracking area from a node controlling a network configuration.

24. The apparatus of claim 19, wherein the tracking area and the second tracking area are comprised in a common mobile profile presented in the tracking area lists of the plurality of terminals.

25. The apparatus of claim 24, wherein the at least one processor is further configured to compare the tracking area lists of each of the plurality of terminals with each other, and identify the same mobile profile presented in the tracking area lists of each of the plurality of terminals.

26. The apparatus of claim 24, wherein the at least one transceiver is further configured to receive a notification of the common mobile profile from a node controlling a network configuration.

27. An apparatus of operation of a node controlling a network configuration in a wireless communication system, the apparatus comprising:

at least one processor configured to generate first information to determine a group comprising a tracking area and at least one other tracking area; and

at least one transceiver configured to transmit the first information to a node managing a mobility of terminals,

wherein the node managing a mobility of terminals transmits a first message including second information for the tracking area and the at least one other tracking area responsive to receiving a second message for requesting third information for the tracking area, and

wherein the at least one other tracking area comprises at least one of a first tracking area adjacent to the tracking area, in which a number of transmissions of random access signals exceeds a threshold, or a second tracking area, wherein the tracking area and the second tracking area are common in tracking area lists of a plurality of terminals.

28. The apparatus of claim 27, wherein the at least one transceiver is further configured to receive at least one report on cell congestion occurrence from each of at least one base station (BS),

wherein the at least one processor is further configured to determine a congestion tracking area based on the at least one report, and

wherein the first tracking area is the congestion tracking area.

29. The apparatus of claim 28, wherein the at least one processor is further configured to:

determine a ranking of congestion for each of tracking areas based on the at least one report; and

determine the congestion tracking area among the tracking areas according to the ranking.

30. The apparatus of claim 27, wherein the at least one transceiver is further configured to receive the tracking area lists of each of the plurality of terminals from the node managing a mobility of terminals, and

wherein the at least one processor is configured to identify the same mobile profile presented in the tracking area lists of each of the plurality of terminals.