HANDOVER MANAGEMENT SCHEME

• US 20140004900A1
• Filed: 06/27/2012
• Published: 01/02/2014
• Est. Priority Date: 06/27/2012
• Status: Active Grant

• Current Assignee: Empire Technology Development LLC (Allied Inventors Management, LLC)
• Original Assignee: Empire Technology Development LLC (Allied Inventors Management, LLC)
• Inventors: LEE, Hyoung-Gon
• Granted Patent: US 9,351,222 B2
• Time in Patent Office: Days
• US Class Current: 455/525
• CPC Class Codes: H04W 36/0009 for a plurality of users or terminals, e.g. group communication or moving wireless networks user group management H04W4/08; processing of subscriber group data H04W8/186
• CPC Class Codes: H04W 36/32 by location or mobility data, e.g. speed data
• CPC Class Codes: H04W 36/326 by proximity to another entity
• CPC Class Codes: H04W 48/20 Selecting an access point

Abstract

Technologies are generally described for a handover management scheme. In some examples, a handover management system may include a grouping unit configured to make a group of one or more mobile devices to move together over a predetermined distance, each of the mobile devices operating either in an active state or in an idle state; and a message generation unit configured to generate a first message, wherein the first message enables at least some of the mobile devices receiving the first message to operate either in the active state or in a deep idle state.

Claims

1. A handover management system comprising:

a grouping unit configured to make a group of one or more mobile devices to move together over a predetermined distance, each of the mobile devices operating either in an active state or in an idle state; and

a message generation unit configured to generate a first message, wherein the first message enables at least some of the mobile devices receiving the first message to operate either in the active state or in a deep idle state.

2. The handover management system of claim 1, wherein the mobile devices operating in the deep idle state do not perform a cell reselection procedure.

3. The handover management system of claim 1, further comprising:

a tracking unit configured to track which cell the mobile devices operating in the deep idle state are in, based at least in part on handover information of the mobile devices operating in the active state in the group.

4. The handover management system of claim 1, wherein the message generation unit is further configured to generate a second message, and

wherein the second message makes the mobile devices receiving the second message operate either in the active state or in the idle state.

5. The handover management system of claim 4, wherein the one or more mobile devices are in a vehicle moving from a first station to a second station,

wherein the grouping unit is further configured to make the group of the one or more mobile devices in the vehicle when the vehicle departing the first station, and

wherein the message generation unit is further configured to generate the first message after departing the first station, and generate the second message before arriving at the second station.

6. The handover management system of claim 5, wherein the grouping unit is further configured to update the group when the vehicle departing the second station.

7. The handover management system of claim 1, further comprising:

a transmitter configured to transmit messages generated by the message generation unit to at least some of the mobile devices in the group.

8. A method performed under control of a handover management system, comprising:

making a group of one or more mobile devices to move together over a predetermined distance, each of the mobile devices operating either in an active state or in an idle state; and

generating a first message for enabling at least some of the mobile devices in the group to operate either in the active state or in a deep idle state.

9. The method of claim 8, wherein the mobile devices operating in the deep idle state do not perform a cell reselection procedure.

10. The method of claim 8, further comprising:

tracking which cell the mobile devices operating in the deep idle state are in, based at least in part on handover information of the mobile devices operating in the active state in the group.

11. The method of claim 8, further comprising:

tracking which cell the mobile devices operating in the deep idle state are in, based at least in part on cell reselection information of at least one mobile device operating in the idle state in the group, when there is no active mobile device in the group.

12. The method of claim 8, further comprising:

transmitting the first message to at least some of the mobile devices in the group.

13. The method of claim 8, further comprising:

generating a second message for making the group of the one or more mobile devices to operate either in the active state or in the idle state.

14. The method of claim 13, further comprising:

transmitting the second message to at least some of the mobile devices in the group.

15. A computer-readable storage medium having stored thereon computer-executable instructions that, in response to execution, cause a handover management system to perform operations, comprising:

making a group of one or more mobile devices to move together over a predetermined distance, each of the mobile devices operating either in an active state or in an idle state; and

generating a first message for enabling at least some of the mobile devices in the group to operate either in the active state or in a deep idle state.

16. A handover management system comprising:

a determination unit configured to determine whether a mobile device is to stay in a predetermined place, the mobile device operating either in an active state or in an idle state; and

a message generation unit configured to generate a first message when the determination unit determines that the mobile device is to stay in the predetermined place, wherein the first message enables the mobile device receiving the first message to operate either in the active state or in a deep idle state.

17. The handover management system of claim 16, wherein the mobile device operating in the deep idle state does not perform a cell reselection procedure.

18. The handover management system of claim 16, wherein the determination unit is further configured to determine whether the mobile device is to stay in the predetermined place based at least in part on information received from the mobile device.

19. The handover management system of claim 16, wherein the determination unit is further configured to determine whether the mobile device is to stay in the predetermined place based at least in part on whether the mobile device has stayed in the predetermined place for a predetermined time period.

20. The handover management system of claim 16, wherein the message generation unit is further configured to generate a second message when the determination unit determines that the mobile device is not to stay in the predetermined place, and

wherein the second message makes the mobile device receiving the second message operate either in the active state or in the idle state.

21. The handover management system of claim 16, further comprising:

a transmitter configured to transmit messages generated by the message generation unit to the mobile device.

22. A method performed under control of a handover management system, comprising:

determining whether a mobile device is to stay in a predetermined place, the mobile device operating either in an active state or in an idle state; and

generating a first message for enabling the mobile device to operate either in the active state or in a deep idle state, when determining that the mobile device is to stay in the predetermined place.

23. The method of claim 22, wherein the mobile device operating in the deep idle state does not perform a cell reselection procedure.

24. The method of claim 22, wherein the determining is based at least in part on information received from the mobile device.

25. The method of claim 22, wherein the determining is based at least in part on whether the mobile device has stayed in the predetermined place for a predetermined time period.

26. The method of claim 22, further comprising:

transmitting the first message to the mobile device.

27. The method of claim 22, further comprising:

generating a second message for making the mobile device to operate either in the active state or in the idle state, when the determination unit determines that the mobile device is not to stay in the predetermined place.

28. The method of claim 27, further comprising:

transmitting the second message to the mobile device.