IP Library Granted Patent US 8,938,240
Granted Patent B2
US 8,938,240 · App. 13/736,855 · Granted Jan 20, 2015

Systems and methods for spectrum handoff management in white spaces

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Quick Facts
Patent No.
US 8,938,240
App. No.
13/736,855
Granted
Jan 20, 2015
Kind
B2
Abstract

Systems and methods for managing spectrum handoff in a plurality of radio networks are disclosed. These may include gathering a plurality of data about each of the first and second locations; determining a load level associated with each of the first and second set of radio networks; determining a bandwidth allocation value; and reserving a plurality of channel slices from the first channel set among the first of radio networks.

Claims (57)

1. A management system for spectrum handoff in a plurality of radio networks, the plurality of radio networks configured to operate over a shared spectrum, the management system comprising:

a processor;

a neighbor detection engine communicatively coupled to the processor, the neighbor detection engine configured to:

gather a first plurality of data associated with a first location; and

gather a second plurality of data associated with a second location;

a load analysis engine communicatively coupled to the processor, the load analysis engine configured to determine a load level associated with a first set of radio networks and a second set of radio networks of the plurality of radio networks,

a spectrum analysis engine communicatively coupled to the processor, the spectrum analysis engine configured to determine a bandwidth allocation value based on the load level; and

a channel slicing engine communicatively coupled to the processor, the channel slicing engine configured to:

generate a channel table from the first plurality of data and the second plurality of data, the channel table comprising:

a first channel set comprising channels of the shared spectrum available at both the first location and the second location; and

a second channel set comprising channels of the shared spectrum available at the first location and unavailable at the second location; and

order the first set of radio networks and the second set of radio networks based on the bandwidth allocation value, data associated with the first channel set, and data associated with the second channel set.

2. The system of claim 1 , wherein the first location and the second location are associated with a predetermined route.

3. The system of claim 1 , wherein the channel slicing engine is further configured to:

receive a plurality of mobility data, the plurality of mobility data associated with a white space object; and

estimate the second location based on the plurality of mobility data.

4. The system of claim 3 , wherein the plurality of mobility data includes data associated with one or more of a speed of the white space object, a direction of the white space object, or a mobility state of the white space object.

5. The system of claim 3 , wherein the plurality of mobility data is received during registration of the white space object to the management system.

6. The system of claim 3 , wherein the plurality of mobility data is received during reconfiguration of the white space object.

7. The system of claim 3 , wherein the plurality of mobility data is received during a response from the white space object to an information request from the management system.

8. The system of claim 1 , further comprising a radio network of the plurality of radio networks, the radio network configured to:

determine a load level;

determine a bandwidth allocation value based on the load level;

receive the channel table; and

select a one or more channel slices from the channel table based on the bandwidth allocation value and a score associated with each of the one or more channel slices.

9. The system of claim 8 , wherein the channel score is based on data associated with the first channel set and the second channel set.

10. The system of claim 1 ,

wherein the first set of radio networks comprises radio networks operable over the second channel set at the first location and not the second location and the second set of radio networks comprises radio networks operable over the first and second channel sets.

11. The system of claim 1 , wherein the channel slicing engine is further configured to reserve one or more channel slices from the first channel set to preserve wireless connectivity for the first set of radio networks.

12. The system of claim 1 , wherein the management system is compatible with IEEE 802.19.1.

13. A method for spectrum handoff in a plurality of radio networks, the plurality of radio networks configured to operate over a shared spectrum, the method comprising:

gathering a first plurality of data associated with a first location;

gathering a second plurality of data associated with a second location;

generating a channel table from the first plurality of data and the second plurality of data, the channel table comprising:

a first channel set comprising channels of the shared spectrum available at both the first location and the second location; and

a second channel set comprising channels of the shared spectrum available at the first location and unavailable at the second location;

determining a load level associated with a first set of radio networks and a second set of radio networks of the plurality of radio networks;

determining a bandwidth allocation value based on the load level; and

ordering the first set of radio networks and the second set of radio networks based on the bandwidth allocation value, data associated with the first channel set, and data associated with the second channel set.

14. The method of claim 13 , wherein the first location and the second location are associated with a predetermined route.

15. The method of claim 13 , further comprising:

receiving a plurality of mobility data, the plurality of mobility data associated with a white space object; and

estimating the second location based on the plurality of mobility data.

16. The method of claim 15 , wherein the plurality of mobility data includes data associated with one or more of a speed of the white space object, a direction of the white space object, or a mobility state of the white space object.

17. The method of claim 15 , wherein the plurality of mobility data is received during registration of the white space object to the management system.

18. The method of claim 15 , wherein the plurality of mobility data is received during reconfiguration of the white space object.

19. The method of claim 15 , wherein the plurality of mobility data is received during a response from the white space object to an information request from the management system.

20. The method of claim 13 , further comprising:

determining a load level;

determining a bandwidth allocation value based on the load level;

receiving the channel table; and

selecting a one or more channel slices from the channel table based on the bandwidth allocation value and a score associated with each of the one or more channel slices.

21. The method of claim 20 , wherein the channel score is based on data associated with the first channel set and the second channel set.

22. The method of claim 13 ,

wherein the first set of radio networks comprises radio networks operable over the second channel set at the first location and not the second location, and the second set of radio networks comprises radio networks operable over the first and second channel sets.

23. The method of claim 13 , further comprising reserving one or more channel slices from the first channel set to preserve wireless connectivity for the first set of radio networks.

24. The method of claim 13 , wherein the method is compatible with IEEE 802.19.1.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2024
From: YAMATO KANZAI LIMITED
To: LENOVO (SINGAPORE) PTE. LTD.
Reel/Frame 066909/0359 →
CHANGE OF NAME Recorded Mar 21, 2024
From: FCNT LIMITED
To: YAMATO KANZAI LIMITED
Reel/Frame 066854/0942 →
CHANGE OF NAME Recorded Mar 19, 2024
From: FUJITSU CONNECTED TECHNOLOGIES LIMITED
To: FCNT LIMITED
Reel/Frame 066832/0399 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 15, 2018
From: FUJITSU LIMITED
To: FUJITSU CONNECTED TECHNOLOGIES LIMITED
Reel/Frame 047508/0029 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 8, 2013
From: FARHADI, GOLNAZ
To: FUJITSU LIMITED
Reel/Frame 029590/0960 →