Data transmission based on interferer classification

• US 10,555,332 B2
• Filed: 10/24/2017
• Issued: 02/04/2020
• Est. Priority Date: 10/24/2017
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Kamalizad, Amir Hosein, Silverman, Matthew Aaron
• Primary Examiner(s): Divito, Walter J
• Application Number:
  US15/792,624
• Publication Number:
  US 20190124672A1
• Time in Patent Office: 833 Days
• CPC Class Codes: H04B 17/336 Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
• CPC Class Codes: H04L 1/0015 characterised by the adaptation strategy
• CPC Class Codes: H04L 25/0204 of multiple channels
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

A method for transmitting a data transmission based on the classification of an interfering signal is described. The method comprises transmitting a first data transmission within a frequency band and detecting an interfering signal within the frequency band. The method comprises classifying the interfering signal as one of a plurality of interfering signal types. The method comprises transmitting, based on the classification, a second data transmission within the frequency band.

Claims

1. A method comprising:

transmitting a first data transmission at a first data rate within a frequency band;

detecting an interfering signal within the frequency band;

classifying the interfering signal as one of a plurality of interfering signal types;

transmitting, a second data transmission within the frequency band with a second data rate less than the first data rate based on classifying the interfering signal as a first interfering signal type associated with no duty cycle; and

transmitting a third data transmission within the frequency band with a third data rate substantially equal to the first data rate based on classifying the interfering signal as a second signal type associated with a duty cycle.

2. The method of claim 1, wherein classifying the interfering signal comprises classifying the interfering signal as an LTE (Long Term Evolution) signal.

3. The method of claim 2, wherein classifying the interfering signal as an LTE signal comprises:

performing a correlation on at least a portion of the interfering signal; and

detecting a correlation result greater than a threshold.

4. The method of claim 1, wherein the frequency band includes a 5 GHz (Gigahertz) frequency band.

5. The method of claim 1, wherein the third data transmission is transmitted with a transmission time based on the duty cycle.

6. The method of claim 5, further comprising:

in response to determining, that the interfering signal has off duty cycle times, transmitting the third data transmission beginning with the transmission time to coincide with the off duty cycle times.

7. The method of claim 1 the second data transmission is transmitted with a transmission frequency based on classifying the interfering signal.

8. The method of claim 7, further comprising:

wherein the second data transmission is transmitted with a second transmission frequency equal to a first transmission frequency of the first data transmission based on the first interfering signal type being detectable at a first detection threshold.

9. A system comprising:

an antenna; and

a controller configured to;

transmit, via the antenna, a first data transmission at a first data rate within a frequency band;

detect an interfering signal within the frequency band;

classify the interfering signal as one of a plurality of interfering signal types; and

transmit, via the antenna and based on the interfering signal type that the interfering signal is classified as, a second data transmission within the frequency band at a second data rate, wherein the second data rate is less than the first data rate when the interfering signal is classified as a first interfering signal type associated with no duty cycle, and the second data rate is equal to the first data rate when the interfering signal is classified as a second interfering signal type associated with a duty cycle.

10. The system of claim 9, wherein classifying the interfering signal comprises classifying the interfering signal as an LTE (Long Term Evolution) signal.

11. The system of claim 10, wherein the controller classifies the interfering signal as an LTE signal by:

performing an autocorrelation on at least a portion of the interfering signal; and

detecting symmetry in the interfering signal using the autocorrelation.

12. The system of claim 9, wherein the second data transmission is transmitted at a transmission time based on the duty cycle.

13. The system of claim 9, wherein the second data transmission is transmitted with a transmission frequency based on which interfering signal type the interfering signal is classified as the.

14. A non-transitory computer-readable medium having instructions encoded thereon which, when executed by a processor, causes the processor to perform operations comprising:

transmitting a first data transmission at a first data rate within a frequency band;

detecting an interfering signal within the frequency band;

classifying the interfering signal as one of a plurality of interfering signal types; and

transmitting, based on the classification, a second data transmission within the frequency band at a second data rate, wherein the second data rate is equal to the first data rate in response to classifying the interfering signal as a first interfering signal type associated with a duty cycle; and

transmitting, based on the classification, a third data transmission within the frequency band at a third data rate, wherein the third data rate is less than the first data rate in response to classifying the interfering signal as a second interfering signal type associated with no duty cycle.

15. The non-transitory computer-readable medium of claim 14, wherein classifying the interfering signal comprises classifying the interfering signal as an LTE (Long Term Evolution) signal.