DEVICE TO DEVICE INTERFERENCE TRIGGERED HANDOVER

• US 20150141000A1
• Filed: 11/19/2013
• Published: 05/21/2015
• Est. Priority Date: 11/19/2013
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: YILMAZ, Osman
• Granted Patent: US 9,220,121 B2
• Time in Patent Office: Days
• US Class Current: 455/426.1
• CPC Class Codes: H04W 36/0094 Definition of hand-off measurement parameters
• CPC Class Codes: H04W 36/302 due to low signal strength
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

Various communication systems may benefit from properly triggered handovers. For example, certain communication systems may benefit from device-to-device interference triggered handovers. A method may include identifying, at a device, at least one strong device to device communication. The method may also include reporting, or initiating the reporting, the at least one strong device to device communication to a controlling node, wherein the controlling node is configured to control the device.

Claims

1. A method, comprising:

identifying, at a device, at least one strong device to device communication; and

reporting, or initiating the reporting, the at least one strong device to device communication to a controlling node, wherein the controlling node is configured to control the device.

2. The method of claim 1, wherein the at least one strong device to device communication comprises at least one device to device pair, at least one device to device unicast, or at least one device to device multicast.

3. The method of claim 1, further comprising:

reporting, to the controlling node, an identification of at least one controlling node corresponding to the at least one strong device to device communication.

4. The method of claim 3, wherein the identification comprises at least one of identification information of a device to device pair or a controlling cell identifier.

5. A method, comprising:

identifying a strong device to device communication based on a report received from a device; and

determining whether to hand over at least one device based on whether the at least one device is part of strong device to device communication.

6. The method of claim 5, wherein the determining is configured to keep strong device to device communicators under control of a same controlling node.

7. The method of claim 5, further comprising:

identifying a controlling node associated with the strong device to device communication.

8. The method of claim 7, wherein the identifying the controlling node comprises inquiring of a network based on information included in the report.

9. The method of claim 5, further comprising:

triggering handover of the at least one device, based on the determining, when handing over the device places more strong device to device communications under a single controlling node.

10. The method of claim 9, further comprising:

confirming with a target controlling node that handing over the device places more strong device to device communications under the single controlling node, prior to commanding the at least one device to hand over.

18. The apparatus of claim 7, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to identify the control by inquiring of a network based on information included in the report.

11. An apparatus, comprising:

at least one processor; and

at least one memory including computer program code,

wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to

identify, at a device, at least one strong device to device communication; and

report, or initiate the report of, the at least one strong device to device communication to a controlling node, wherein the controlling node is configured to control the device.

12. The apparatus of claim 11, wherein the at least one strong device to device communication comprises at least one device to device pair, at least one device to device unicast, or at least one device to device multicast.

13. The apparatus of claim 11, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to report, to the controlling node, an identification of at least one controlling node corresponding to the at least one strong device to device communication.

14. The apparatus of claim 13, wherein the identification comprises at least one of identification information of a device to device pair or a controlling cell identifier.

15. An apparatus, comprising:

at least one processor; and

at least one memory including computer program code,

wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to

identify a strong device to device communication based on a report received from a device; and

determine whether to hand over at least one device based on whether the at least one device is part of strong device to device communication.

16. The apparatus of claim 15, wherein the apparatus is configured to keep strong device to device communicators under control of a same controlling node.

17. The apparatus of claim 15, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to identify a controlling node associated with the strong device to device communication.

19. The apparatus of claim 15, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to trigger handover of the at least one device, based on the determining, when handing over the device places more strong device to device communications under a single controlling node.

20. The apparatus of claim 19, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to confirm with a target controlling node that handing over the device places more strong device to device communications under the single controlling node, prior to commanding the at least one device to hand over.