Carrier selection

• US 8,873,502 B2
• Filed: 02/18/2009
• Issued: 10/28/2014
• Est. Priority Date: 02/18/2009
• Status: Expired due to Fees

• Current Assignee: Clearwire Ip Holdings LLC (Deutsche Telekom AG)
• Original Assignee: Clearwire Ip Holdings LLC (Deutsche Telekom AG)
• Inventors: Vivanco, Daniel A., Dinan, Esmail Hejazi, Rudraraju, Vijay, Anderson, Howard Bishop, Pawar, Hemanth Balaji
• Primary Examiner(s): Edouard, Patrick
• Assistant Examiner(s): Irace, Michael
• Application Number:
  US12/372,814
• Publication Number:
  US 20100210277A1
• Time in Patent Office: 2,078 Days
• Field of Search: 370/330, 370/329, 455/509, 455/452.1
• US Class Current: 370/330
• CPC Class Codes: H04W 72/52 based on load

Abstract

First and second indicators of a first available amount of an air-interface resources associated with a first and second channel, respectively, is received. A request for an allocation of an amount of the air-interface resource is received. Based on the request for the allocation, first and second ranking values associated with the first and second channels, respectively are determined. The first and second ranking values are selected such that the efficient allocations receive higher ranks. Based on the first ranking value and the second ranking value, the first frequency band is selected to provide the allocation of the amount of the air-interface resource.

Claims

1. A method of operating a communication system, comprising:

receiving, by a node of the communication system, an indicator of a first available amount of an air-interface resource of a first channel of the communication system;

receiving, by the node, an indicator of a second available amount of the air-interface resource of a second channel of the communication system;

receiving, by the node, a request for allocation of an amount of the air-interface resource that is less than or equal to the first available amount and to the second available amount;

determining, by the node, a first channel ranking value based on the amount of the requested air-interface resource and on a first remaining amount of the air-interface resource that will be available on the first channel if the first channel is selected to satisfy the request for allocation, wherein the first channel ranking value comprises a first value within a range from a minimum ranking value to a maximum ranking value and is selected to be the maximum value when the remaining amount of the air-interface resource that will be available on the first channel if the first channel is selected is zero;

determining, by the node, a second channel ranking value based on the amount of the requested air-interface resource and on a second remaining amount of the air-interface resource that will be available on the second channel if the second channel is selected to satisfy the request for allocation; and

,

selecting, by the node, one of the first channel and the second channel to satisfy the request for allocation based on the first channel ranking value and the second ranking channel value.

2. The method of claim 1, wherein the request for an allocation of an amount of the air-interface resource is selected from a finite set of allocation amounts for the wireless device.

3. The method of claim 2, wherein a channel ranking value for a particular channel comprises a value within a range from a minimum ranking value to a maximum ranking value and is selected to be the maximum value when the remaining amount of the air-interface resource that will be available on the particular channel if the particular channel is selected is greater than the largest member of the finite set of allocation amounts.

4. The method of claim 2, wherein a channel ranking value of a particular channel has a positive correlation to the remaining amount of the air-interface resource that will be available on the particular channel when the remaining amount of the air-interface resource that will be available on the particular channel is greater than or equal to the smallest member of the finite set of allocation amounts and smaller than or equal to the largest member of the finite set of allocation amounts.

5. The method of claim 2, wherein members of the finite set of allocation amounts are based on a set of modulation and coding schemes.

6. The method of claim 2, wherein members of the finite set of allocation amounts are based on a set of service flow classifications.

7. The method of claim 6, wherein the members of the finite set of allocation amounts are further based on a set of modulation and coding schemes.

17. The method of claim 1, wherein the node of the communication system comprises one of a base station and an access service network gateway.

8. A method of operating a communication system, comprising:

communicating, by a node of the communication system, with a plurality of wireless devices using at least a first channel and a second channel, the first channel having a first remaining allocation of an air-interface resource, the second channel having a second remaining allocation of the air-interface resource;

receiving, by the node, a request for an allocation amount of the air-interface resource that is less than or equal to the first available remaining allocation and the second remaining allocation;

determining, by the node, a first ranking value based on a first projected remaining allocation of the air-interface resource on the first channel, the first projected remaining allocation being based on the first remaining allocation and the allocation amount, wherein the first ranking value comprises a first value within a range from a minimum ranking value to a maximum ranking value and is selected to be the maximum value when the remaining amount of the air-interface resource that will be available on the first channel if the first channel is selected is zero;

determining, by the node, a second ranking value based on a second projected remaining allocation of the air-interface resource on the second channel, the second projected remaining allocation being based on the second remaining allocation and the allocation amount; and

,

based on the first ranking value and the second ranking value, allocating, by the node, on the first channel, the allocation amount of the air-interface resource to the wireless device on the channel in which the remaining amount of the air-interface resource reduces resource usage inefficiency of the air-interface resource.

9. The method of claim 8, wherein the request for an allocation amount of the air-interface resource is selected from a finite set of allocation amounts for the wireless device.

10. The method of claim 9, wherein a reduction of resource usage inefficiency of a particular channel has a maximum value when the projected remaining allocation on the particular channel is greater than the largest member of the finite set of allocation amounts.

11. The method of claim 9, wherein, a reduction of resource usage inefficiency of a particular channel has a positive correlation to the projected remaining allocation on the particular channel, when the projected remaining allocation on the particular channel is within a range from the smallest allocation amount to the largest allocation amount of the finite set of allocation amounts.

12. The method of claim 11, wherein the air-interface resource corresponds to allocations of time and frequency.

18. The method of claim 8, wherein the node of the communication system comprises one of a base station and an access service network gateway.

13. A communication system comprising:

a base station communicating wirelessly with a plurality of wireless devices using at least a first channel and a second channel, the first channel having a first remaining allocation of an air-interface resource, the second channel having a second remaining allocation of the air-interface resource; and

a computer system logically coupled to the base station for allocating a request by a wireless device for an allocation of the air-interface resource to the first channel based on a projected remaining allocation of the air-interface resource on the first channel and on the second channel, the allocation of the air-interface resource being a member of a finite set of allocation amounts for the wireless device, when the projected remaining amount of the air-interface resource on the first channel provides a higher resource usage efficiency than the projected remaining amount of the air-interface resource on the second channel, wherein the resource usage efficiency is based upon a channel ranking value for a particular channel that comprises a first value within a range from a minimum ranking value to a maximum ranking value and is selected to be the maximum value when the projected remaining amount of the air-interface resource that will be available on the particular channel if the particular channel is selected is zero.

14. The communication system of claim 13, wherein the request by the wireless device is allocated to the first channel based on the projected remaining amount of the air-interface resource on the first channel being zero.

15. The communication system of claim 13, wherein the request by the wireless device is allocated to the first channel based on the projected remaining amount of the air-interface resource on the first channel being one of zero and greater or equal than the smallest member of the finite set of allocation amounts for the wireless device.

16. The communication system of claim 13, wherein the request by the wireless device is allocated to the first channel based on the projected remaining amount of the air-interface resource on the first channel being one of zero and greater than the largest member of the finite set of allocation amounts for the wireless device.