IP Library Granted Patent US 9,055,486
Granted Patent B2
US 9,055,486 · App. 13/736,845 · Granted Jun 9, 2015

Systems and methods for coexistence management of shared spectrum access

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Quick Facts
Patent No.
US 9,055,486
App. No.
13/736,845
Granted
Jun 9, 2015
Kind
B2
Abstract

Systems and methods for managing coexistence between a plurality of radio networks configured to operate over a shared spectrum are disclosed. These may include gathering a plurality of data about each of the plurality of radio networks; determining a load level associated with each of the plurality of radio networks; determining a bandwidth allocation value, the bandwidth allocation value based at least on the load level; and allocating a plurality of channel slices among the plurality of radio networks.

Claims (39)

1. A management system for managing coexistence between a 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 plurality of data about each of the plurality of radio networks;

a load analysis engine communicatively coupled to the processor, the load analysis engine configured to determine a load level associated with each 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, the bandwidth allocation value based at least on the load level; and

a channel slicing engine communicatively coupled to the processor, the channel slicing engine configured to allocate a plurality of channel slices among the plurality of radio networks based on a score associated with each of the plurality of channel slices, wherein the score is based on at least a channel quality, a frequency range, or a contiguity.

2. The system of claim 1 , wherein the channel slicing engine is further configured to negotiate a management responsibility with a second management system.

3. The system of claim 2 , wherein the channel slicing engine is further configured to negotiate the management responsibility by communicating at least an ordered list of the plurality of radio networks, a list of channel slices available, and a list of channel slices in a neighbor reuse set.

4. The system of claim 1 , wherein the spectrum analysis engine is further configured to identify a neighbor reuse subset, the neighbor reuse subset comprising a one or more of the plurality of channel slices capable of re-use.

5. The system of claim 4 , wherein bandwidth allocation value is constrained at least by a total bandwidth allocated to a subset of the plurality of channel slices, wherein the subset comprises channel slices that are not members of the neighbor reuse subset.

6. The system of claim 1 , wherein the channel slicing engine is configured to allocate the plurality of channel slices among the plurality of radio networks by allocating a channel slice of the plurality of channel slices based on time-sharing.

7. The system of claim 1 , wherein the management system is compatible with an IEEE 802.19.1 standard.

8. A system for managing coexistence between a plurality of radio networks configured to operate over a shared spectrum, the system comprising:

a management system comprising:

a processor;

a neighbor detection engine communicatively coupled to the processor, the neighbor detection engine configured to gather a plurality of data associated with each of the plurality of radio networks;

a load analysis engine communicatively coupled to the processor, the load analysis engine configured to determine a load level associated with each 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, the bandwidth allocation value based at least on the load level; and

a radio network being one of the plurality of radio networks, the radio network configured to:

receive the plurality of data associated with each of the plurality of radio networks;

receive the bandwidth allocation value; and

allocate a plurality of channel slices associated with the radio network based on a score associated with each of the plurality of channel slices, wherein the score is based on at least a channel quality, a frequency range, or a contiguity.

9. The system of claim 8 , wherein the radio network is further configured to communicate a plurality of data associated with the allocation of the plurality of channel slices to the management system.

10. The system of claim 8 , wherein the channel slicing engine is further configured to negotiate a management responsibility with a second management system.

11. The system of claim 10 , wherein the channel slicing engine is further configured to negotiate the management responsibility by communicating at least an ordered list of the plurality of radio networks, a list of channel slices available, and a list of channel slices in a neighbor reuse set.

12. The system of claim 8 , wherein the radio networks are further configured to identify a neighbor reuse subset, the neighbor reuse subset comprising a one or more of the plurality of channel slices capable of re-use.

13. The system of claim 12 , wherein bandwidth allocation value is constrained at least by a total bandwidth allocated to a subset of the plurality of channel slices, wherein the subset comprises channel slices that are not members of the neighbor reuse subset.

14. The system of claim 8 , wherein the management system is compatible with an IEEE 802.19.1 standard.

15. A method for managing coexistence between a plurality of radio networks configured to operate over a shared spectrum, the method comprising:

gathering a plurality of data about each of the plurality of radio networks;

determining a load level associated with each of the plurality of radio networks;

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

allocating a plurality of channel slices among the plurality of radio networks based on a score associated with each of the plurality of channel slices, wherein the score is based on at least a channel quality, a frequency range, or a contiguity.

16. The method of claim 15 , further comprising negotiating a management responsibility with a second management system.

17. The method of claim 16 , wherein negotiating the management responsibility comprises communicating at least an ordered list of the plurality of radio networks, a list of channel slices available, and a list of channel slices in a neighbor reuse set.

18. The method of claim 15 , further comprising identifying a neighbor reuse subset, the neighbor reuse subset comprising a one or more of the plurality of channel slices capable of re-use.

19. The method of claim 18 , wherein bandwidth allocation value is constrained at least by a total bandwidth allocated to a subset of the plurality of channel slices, wherein the subset comprises channel slices that are not members of the neighbor reuse subset.

20. The method of claim 15 , wherein allocating the plurality of channel slices among the plurality of radio networks comprises allocating a channel slice of the plurality of channel slices based on time-sharing.

21. The method of claim 15 , wherein the method is compatible with an IEEE 802.19.1 standard.

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 029590/0962 →