Spectrum controller for cellular and WiFi networks

• US 10,349,384 B2
• Filed: 11/23/2017
• Issued: 07/09/2019
• Est. Priority Date: 11/23/2017
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Barton, Robert, Hanes, M. David, Salgueiro, Gonzalo, Henry, Jerome
• Primary Examiner(s): Ton, Dang T
• Application Number:
  US15/821,767
• Publication Number:
  US 20190159176A1
• Time in Patent Office: 593 Days
• Field of Search: 370329
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 36/22 for handling the traffic
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• 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

In one embodiment a method including obtaining metrics regarding a WiFi network and a RAN having overlapping coverage ranges, based at least partly on the metrics, allocating a first adjusted spectrum allocation to a first network, and a second adjusted spectrum allocation to a second network, the first adjusted spectrum allocation decreased from a first current spectrum allocation, and the second adjusted spectrum allocation increased from a second current spectrum allocation, and causing enforcement of the first adjusted spectrum allocation and the second adjusted spectrum allocation, wherein the obtaining, allocating and causing are performed a plurality of times, and wherein in at least one of the plurality of times the first network is the WiFi network and the second network is the RAN, and in at least one other of the plurality of times the first network is the RAN and the second network is the WiFi network.

Claims

1. An apparatus comprising:

processing circuitry; and

at least one computer readable storage medium adapted to store data used by the processing circuitry;

wherein the processing circuitry is adapted to perform the following a plurality of times;

obtain metrics regarding a Wireless Local Area Network (WLAN) and a Radio Access Network (RAN) of a cellular network, the WLAN and the RAN having overlapping coverage ranges,

based at least partly on said metrics, allocate a first adjusted spectrum allocation to a first network, of the WLAN and RAN, and a second adjusted spectrum allocation to a second network, of the WLAN and RAN, said first adjusted spectrum allocation decreased from a first current spectrum allocation for the first network, and said second adjusted spectrum allocation increased from a second current spectrum allocation for the second network, and

cause enforcement of the first adjusted spectrum allocation and the second adjusted spectrum allocation,

wherein in at least two of the plurality of times, said metrics are indicative that for the first network, the first current spectrum allocation is greater than or equal to a first current spectrum requirement for the first network, and that for the second network, the second current spectrum allocation is less than a second current spectrum requirement for the second network, and

wherein in at least one of the at least two times the first network is the WLAN and the second network is the RAN, and in at least one other of the at least two times the first network is the RAN and the second network is the WLAN.

2. The apparatus of claim 1, further comprising networking circuitry, wherein said processing circuitry is adapted to cause enforcement by being adapted to send via the networking circuitry at least one of:

a first indication of the first adjusted spectrum allocation or a second indication of the second adjusted spectrum allocation.

3. The apparatus of claim 1, wherein said apparatus further includes at least one of:

at least one transmitter and receiver of the WLAN or at least one transmitter and receiver of the RAN, and wherein said processing circuitry is adapted to cause enforcement by being adapted to enforce at least one of;

the first adjusted spectrum allocation or the second adjusted spectrum allocation.

4. The apparatus of claim 1, wherein the WLAN and the RAN are both operated by a same enterprise.

5. The apparatus of claim 1, wherein in one or more of the plurality of times, said metrics are indicative that the first current spectrum allocation is less than the first current spectrum requirement, that the second current spectrum allocation is less than the second current spectrum requirement, and that the second current spectrum requirement exceeds the second current spectrum allocation by more than the first current spectrum requirement exceeds the first current spectrum allocation.

6. The apparatus of claim 1, wherein in one or more of the plurality of times, said metrics are indicative that the first current spectrum allocation is greater than or equal to the first current spectrum requirement, that the second current spectrum allocation is greater than or equal to the second current spectrum requirement, and that the second current spectrum allocation exceeds the second current spectrum requirement by less than the first current spectrum allocation exceeds the first current spectrum requirement.

7. The apparatus of claim 1, wherein in one or more of the plurality of times the processing circuitry is further adapted to:

analyze historical metrics for past instances of at least one of;

a specific day of week or a specific time of day, producing a result;

allocate said first current spectrum allocation and said second current spectrum allocation for an instance of the at least one of;

the specific day of week or the specific time of day, based on said result; and

cause enforcement of said first current spectrum allocation and said second current spectrum allocation.

8. The apparatus of claim 1, wherein in one or more of the plurality of times one network of the first network and the second network has more of at least one of:

priority users, priority wireless devices, priority applications, or priority services compared to another network of the first network and the second network, and wherein the processing circuitry is adapted in the one or more of the plurality of times to allocate an adjusted spectrum allocation for the one network, that is decreased by less or increased by more from a current spectrum allocation for the one network, than had the one network had an equal number of or fewer priority users, priority wireless devices, priority applications, and priority services than the other network.

9. The apparatus of claim 1, wherein in a first time of said plurality of times, said first current spectrum allocation and said second spectrum allocation are unequal initial spectrum allocations.

10. The apparatus of claim 1, wherein the first adjusted spectrum allocation and the second adjusted spectrum allocation allocated in an earlier time of the plurality of times, are the first current spectrum allocation and second current spectrum allocation in a later time of the plurality of times.

11. The apparatus of claim 1, wherein said metrics include a first channel utilization for the first network and a second channel utilization for the second network, and wherein the second channel utilization obtained in an earlier time of the plurality of times is above 50%, but after allocation of said second adjusted spectrum allocation in the earlier time of the plurality of times, the first channel utilization and the second channel utilization obtained in a later time of the plurality of times are equal to or below 50%.

12. The apparatus of claim 1, wherein the processing circuitry is further adapted to cause at least one of:

offloading to at least one other network at least one of;

one or more users, one or more wireless devices, one or more applications, or one or more services, the at least one other network including at least one of;

another WLAN or another RAN;

redirecting of at least one of;

one or more users, one or more wireless devices, one or more applications, or one or more services to a more reliable network of the WLAN and the RAN;

or

enforcement of frequency assignment to, or removal of frequency assignment from, at least one of;

one or more users, one or more applications, one or more services, or one or more wireless devices.

13. The apparatus of claim 1, wherein the adjusted spectrum allocations are from an industrial, scientific, and medical radio band.

14. The apparatus of claim 1, wherein each of said adjusted spectrum allocations is below a configured maximum spectrum allocation.

15. A method comprising:

obtaining metrics regarding a Wireless Local Area Network (WLAN) and Radio Access Network (RAN) of a cellular network, the WLAN and the RAN having overlapping coverage ranges,

based at least partly on said metrics, allocating a first adjusted spectrum allocation to a first network, of the WLAN and RAN, and a second adjusted spectrum allocation to a second network, of the WLAN and RAN, said first adjusted spectrum allocation decreased from a first current spectrum allocation for the first network, and said second adjusted spectrum allocation increased from a second current spectrum allocation for the second network; and

causing enforcement of the first adjusted spectrum allocation and the second adjusted spectrum allocation,

wherein said obtaining, allocating and causing are performed a plurality of times, and wherein in at least two of the plurality of times, said metrics are indicative that for the first network, the first current spectrum allocation is greater than or equal to a first current spectrum requirement for the first network, and that for the second network, the second current spectrum allocation is less than a second current spectrum requirement for the second network, and wherein in at least one of the at least two times the first network is the WLAN and the second network is the RAN, and in at least one other of the at least two times the first network is the RAN and the second network is the WLAN.

16. The method of claim 15, further comprising:

analyzing historical metrics for past instances of at least one of;

a specific day of week or a specific time of day;

allocating said first current spectrum allocation and said second current spectrum allocation for an instance of the at least one of;

the specific day of week or the specific time of day, based on a result of said analyzing; and

causing enforcement of said first current spectrum allocation and said second current spectrum allocation.

17. The method of claim 15, wherein said metrics include a first channel utilization for the first network and a second channel utilization for the second network, and wherein the second channel utilization obtained in an earlier time of the plurality of times is above 50%, but after allocation of said second adjusted spectrum allocation in the earlier time of the plurality of times, the first channel utilization and the second channel utilization obtained in a later time of the plurality of times are equal to or below 50%.

18. The method of claim 15, further comprising:

causing at least one of;

enforcement of frequency assignment to, or removal of frequency assignment from at least one of;

one or more users, one or more applications, one or more services, or one or more wireless devices;

redirecting of at least one of;

one or more users, one or more wireless devices, one or more applications, or one or more services to a more reliable network of the WLAN and the RAN;

or

offloading at least one of;

one or more users, one or more wireless devices, one or more applications, or one or more services to at least one other network, the at least one other network including at least one of;

another WLAN or another RAN.

19. A computer program product, comprising a non-transitory computer readable medium having computer readable program code embodied therein, the computer program product comprising:

computer readable program code for causing a computer to obtain metrics regarding a WLAN and a Radio Access Network (RAN) of a cellular network, the WLAN and the RAN having overlapping coverage ranges;

computer readable program code for causing the computer to allocate, based at least partly on said metrics, a first adjusted spectrum allocation to a first network, of the WLAN and RAN, and a second adjusted spectrum allocation to a second network, of the WLAN and RAN, said first adjusted spectrum allocation decreased from a first current spectrum allocation for the first network, and said second adjusted spectrum allocation increased from a second current spectrum allocation for the second network; and

computer readable program code for causing the computer to cause enforcement of the first adjusted spectrum allocation and the second adjusted spectrum allocation,

wherein the computer readable program code for causing the computer to obtain, allocate and cause enforcement, causes the computer to obtain, allocate and cause enforcement a plurality of times, and wherein in at least two of the plurality of times, said metrics are indicative that for the first network, the first current spectrum allocation is greater than or equal to a first current spectrum requirement for the first network, and that for the second network, the second current spectrum allocation is less than a second current spectrum requirement for the second network, and wherein in at least one of the at least two times the first network is the WLAN and the second network is the RAN, and in at least one other of the at least two times the first network is the RAN and the second network is the WLAN.

20. The computer program product of claim 19, further comprising:

computer readable program code for causing the computer to analyze historical metrics for past instances of at least one of;

a specific day of week or a specific time of day;

computer readable program code for causing the computer to allocate said first current spectrum allocation and said second current spectrum allocation for an instance of the at least one of;

the specific day of week or the specific time of day, based on a result of said analyzing; and

computer readable program code for causing the computer to cause enforcement of said first current spectrum allocation and said second current spectrum allocation.