Asymmetrical multicarrier interference avoidance

• US 8,965,296 B2
• Filed: 11/29/2012
• Issued: 02/24/2015
• Est. Priority Date: 09/09/2008
• Status: Active Grant

• Current Assignee: AT&T Mobility II LLC (AT&T, Inc.)
• Original Assignee: AT&T Mobility II LLC (AT&T, Inc.)
• Inventors: Brisebois, Arthur Richard, Ohana, Alain, Mansfield, William G., Shively, David Grant, Keathley, Thomas, Frerking, Melvin D., Choi-Grogan, Yung Shirley
• Primary Examiner(s): NGUYEN, TUAN HOANG
• Application Number:
  US13/688,486
• Publication Number:
  US 20130088991A1
• Time in Patent Office: 817 Days
• Field of Search: 455/62, 455/63.1, 455/67.13
• US Class Current: 455/63.1
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

Asymmetrical multicarrier interference avoidance in a communication from a network to a subscriber device is provided. The asymmetrical multicarrier interference avoidance technique comprises measuring signal-to-noise ratio interference values and sorting the measured values into two tables for selecting an anchor and a non-anchor frequency carrier pairs. The system is self-tuning based on changes in the network, the subscriber and the surrounding environment.

Claims

1. A system, comprising:

a memory to store instructions; and

a processor, communicatively coupled to the memory, that facilitates execution of the instructions to perform operations, comprising;

determining combined value data based on aggregating uplink signal-to-noise ratios and downlink signal-to-noise ratios associated with respective frequency carrier pairs, and

selecting an anchor frequency carrier from the respective frequency carrier pairs based on a determination that a combined value corresponding to the anchor frequency carrier satisfies a selection criterion, wherein the combined value is identified from the combined value data.

2. The system of claim 1, wherein the operations further comprise:

utilizing the anchor frequency carrier to facilitate a bidirectional communication between a communication network device and a user equipment.

3. The system of claim 1, wherein the selection criterion is associated with a rank of the anchor frequency carrier.

4. The system of claim 1, wherein the selecting includes selecting the anchor frequency carrier based on a radio condition associated with the user equipment.

5. The system of claim 1, wherein the operations further comprise:

organizing the combined value data within a matrix of frequency carriers.

6. The system of claim 5, wherein the organizing includes organizing the combined value data based on trend data.

7. The system of claim 5, wherein the organizing includes organizing the combined value data based on historical data indicative of a history of an application requirement.

8. The system of claim 5, wherein the organizing includes organizing the combined value data based on historical data indicative of a history of a transmission technology.

9. A method, comprising:

determining, by a system comprising a processor, combined value data based on aggregating uplink signal-to-noise ratios and downlink signal-to-noise ratios associated with respective frequency carrier pairs;

determining, by the system, that a combined value from the combined value data satisfies a selection criterion; and

selecting, by the system, an anchor frequency carrier based on the determining that the combined value satisfies the selection criterion.

10. The method of claim 9, wherein the determining that the combined value satisfies the selection criterion includes determining that a rank associated with the combined value satisfies a defined rank criterion.

11. The method of claim 9, further comprising:

generating, by the system, difference values based on a difference between the uplink signal-to-noise ratios and the downlink signal-to-noise ratios; and

identifying, by the system, a non-anchor frequency carrier from the respective frequency carrier pairs based on the difference values.

12. The method of claim 9, further comprising:

measuring, by the system, the uplink signal-to-noise ratios and the downlink signal-to-noise ratios.

13. The method of claim 12, wherein the measuring is based on data determined by a set of scanning receivers.

14. The method of claim 12, wherein the measuring is based on interpolation data indicative of an interpolation that employs reported signal strength data and quality sample data.

15. The method of claim 9, further comprising:

arranging, by the system, the combined value data within a matrix of frequency carriers, wherein the combined value is determined based on the arranging.

16. A tangible computer readable medium comprising computer-executable instructions that, in response to execution, cause a system including a processor to perform operations, comprising:

aggregating uplink signal-to-noise ratios and downlink signal-to-noise ratios associated with a set of frequency carrier pairs;

based on the aggregating, determining a set of combined values associated with the set of frequency carrier pairs; and

determining an anchor frequency carrier from the set of frequency carrier pairs based on a determination that a combined value of the set of combined values satisfies a selection criterion, wherein the combined value corresponds to the anchor frequency carrier.

17. The tangible computer readable medium of claim 16, further comprising:

organizing the set of combined values within a matrix of frequency carriers, wherein the combined value is determined based on the organizing.

18. The tangible computer readable medium of claim 16, wherein the operations further comprise:

employing the anchor frequency carrier for a bidirectional communication between a user equipment and a communication network device.

19. The tangible computer readable medium of claim 16, wherein the operations further comprise:

determining a set of difference values based on a difference between the uplink signal-to-noise ratios and the downlink signal-to-noise ratios; and

selecting a non-anchor frequency carrier from the respective frequency carrier pairs based on the set of difference values.

20. The tangible computer readable medium of claim 19, wherein the operations further comprise:

employing the non-anchor frequency carrier for a unidirectional communication between the user equipment and a communication network device.