Methods and system for performing inter-network handover operations in dynamic spectrum arbitrage system

• US 9,813,924 B2
• Filed: 04/26/2016
• Issued: 11/07/2017
• Est. Priority Date: 05/29/2013
• Status: Active Grant

• Current Assignee: Rivada Networks, LLC
• Original Assignee: Rivada Networks, LLC
• Inventors: Smith, Clint, Devisetti, Nageswara Rao Deekshitha, Smith, Samuel
• Primary Examiner(s): Jaroenchonwanit, Bunjob
• Application Number:
  US15/138,461
• Publication Number:
  US 20160242046A1
• Time in Patent Office: 560 Days
• Field of Search: None
• CPC Class Codes: H04M 15/60 based on actual use of network resources
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 28/16 Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
• CPC Class Codes: H04W 36/0016 Hand-off preparation specially adapted for end-to-end data sessions
• CPC Class Codes: H04W 36/32 by location or mobility data, e.g. speed data
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 72/00 Local resource management
• CPC Class Codes: H04W 72/04 Wireless resource allocation

Abstract

A dynamic spectrum arbitrage (DSA) system includes a dynamic spectrum policy controller (DPC) and a dynamic spectrum controller (DSC) that together dynamically manage the allocation and use of resources (e.g., spectrum resources) across different networks. As part of these operations, the DSC may generate a grid-map structure that includes a primary grid structure that identifies telecommunication cells in a geographical area, and monitor the locations of wireless devices with respect to the telecommunication cells of the grid-map structure to determine whether to initiate inter-network handover operations. The DSC may also receive updated information from the monitored wireless devices (e.g., wireless devices that attached to the resources of the lessee or lessor networks), update the grid-map structure based on the updated information to better account for changes in the availability of resources, and determine whether to initiate inter-network handover operations based on information included in the updated grid-map structure.

Claims

1. A dynamic spectrum arbitrage (DSA) method, comprising:

generating, via the processor of server computing device that is configured to perform DSA operations, a grid-map structure that includes a primary grid structure that identifies telecommunication cells in a geographical area;

monitoring, via the processor, locations of wireless devices with respect to the telecommunication cells of the grid-map structure;

receiving updated information from the monitored wireless devices;

updating the grid-map structure based on the updated information received from the monitored wireless devices; and

determining whether to initiate inter-network handover operations based on the locations of the wireless devices with respect to the telecommunication cells in the updated grid-map structure.

2. The DSA method of claim 1, wherein:

monitoring locations of wireless devices comprises monitoring the locations of a first wireless device attached to a first eNodeB in a first telecommunication network and determining the location of the first wireless device with respect to the first eNodeB; and

determining whether to initiate inter-network handover operations based on the locations of the wireless devices with respect to the telecommunication cells of the updated grid-map structure comprises determining whether to initiate handin operations to transfer the first wireless device attached to the first eNodeB to a second eNodeB in a second telecommunication network.

3. The DSA method of claim 2, wherein determining the location of the first wireless device with respect to the first eNodeB comprises determining a distance between the first wireless device and the first eNodeB.

4. The DSA method of claim 1, wherein:

monitoring locations of wireless devices comprises monitoring a location of a first wireless device that subscribes to a first telecommunication network and is attached to an eNodeB in a second telecommunication network and determining the location of the first wireless device with respect to the eNodeB in the second telecommunication network; and

determining whether to initiate inter-network handover operations based on the locations of the wireless devices with respect to the telecommunication cells of the grid-map structure comprises determining whether to initiate backoff operations to transfer the first wireless device back to the first telecommunication network.

5. The DSA method of claim 4, wherein determining the location of the first wireless device with respect to the eNodeB in the second telecommunication network comprises determining the location of the first wireless device with respect to the eNodeB in the second telecommunication network.

6. The DSA method of claim 4, wherein determining whether to initiate backoff operations comprises determining whether to initiate backoff operations in response to:

determining that resource lease period has ended;

or

determining that the eNodeB is congested.

7. The DSA method of claim 1, further comprising:

classifying each of the telecommunication cells of the primary grid structure as being an interior cell or a border cell.

8. The DSA method of claim 7, wherein generating the grid-map structure comprises generating the grid-map structure to include a buffer zone structure that identifies the telecommunication cells that are adjacent to the border cell.

9. The DSA method of claim 8, wherein generating the grid-map structure to include the buffer zone structure comprises generating the buffer zone structure to include multiple tiers.

10. The DSA method of claim 8, further comprising:

determining whether the wireless device has moved outside an area identified via the buffer zone structure; and

determining whether to initiate backoff operations in response to determining that the wireless device has moved outside of the area identified via buffer zone structure.

11. The DSA method of claim 9, further comprising:

performing ping-pong avoidance operations based on the buffer zone structure.

12. The DSA method of claim 1, further comprising:

receiving measurement reports that include eNodeB signal strength information from the wireless devices.

13. The DSA method of claim 1, wherein determining whether to initiate inter-network handover operations comprises determining whether to initiate inter-network handover operations of a first wireless devices based on:

a priority level of the first wireless device;

a quality of service class of the first wireless device;

a current congestion status of an eNodeB;

or

historic congestion information the eNodeB.

14. A dynamic spectrum arbitrage (DSA) system, comprising:

an eNodeB comprising an eNodeB processor;

a dynamic spectrum controller (DSC) comprising DSC processor coupled to the eNodeB via a first communication link; and

a dynamic spectrum policy controller (DPC) comprising a DPC processor coupled to the DSC via a second communication link,

wherein the DSC processor is configured with processor executable instruction to perform operations comprising;

generating a grid-map structure that includes a primary grid structure that identifies telecommunication cells in a geographical area;

monitoring locations of wireless devices with respect to the telecommunication cells of the grid-map structure;

receiving updated information from the monitored wireless devices;

updating the grid-map structure based on the updated information received from the monitored wireless devices; and

determining whether to initiate inter-network handover operations based on the locations of the wireless devices with respect to the telecommunication cells in the updated grid-map structure.

15. The DSA system of claim 14, wherein the DSC processor is configured with processor executable instruction to perform operations such that:

monitoring locations of wireless devices comprises monitoring the locations of a first wireless device attached to a first eNodeB in a first telecommunication network and determining the location of the first wireless device with respect to the first eNodeB; and

determining whether to initiate inter-network handover operations based on the locations of the wireless devices with respect to the telecommunication cells of the updated grid-map structure comprises determining whether to initiate handin operations to transfer the first wireless device attached to the first eNodeB to a second eNodeB in a second telecommunication network.

16. The DSA system of claim 14, wherein the DSC processor is configured with processor executable instruction to perform operations such that:

monitoring locations of wireless devices comprises;

monitoring a location of a first wireless device that subscribes to a first telecommunication network and is attached to an eNodeB in a second telecommunication network; and

determining the location of the first wireless device with respect to the eNodeB in the second telecommunication network; and

determining whether to initiate inter-network handover operations based on the locations of the wireless devices with respect to the telecommunication cells of the grid-map structure comprises;

determining whether to initiate backoff operations to transfer the first wireless device back to the first telecommunication network.

17. The DSA system of claim 14, wherein the DSC processor is configured with processor executable instruction to perform operations further comprising:

classifying each of the telecommunication cells of the primary grid structure as being an interior cell or a border cell.

18. The DSA system of claim 17, wherein the DSC processor is configured with processor executable instruction to perform operations such that generating the grid-map structure comprises generating the grid-map structure to include a buffer zone structure that identifies the telecommunication cells that are adjacent to the border cell.

19. The DSA system of claim 18, wherein generating the grid-map structure to include the buffer zone structure comprises generating the buffer zone structure to include multiple tiers.

20. The DSA system of claim 18, further comprising:

determining whether the wireless device has moved outside an area identified via the buffer zone structure; and

determining whether to initiate backoff operations in response to determining that the wireless device has moved outside of the area identified via buffer zone structure.