Granted Patent B2

US 12,712,649 · App. 18/062,322 · Granted Aug 18, 2026

Inventors: Matthew A. Silverman (Shaker Heights, OH); Michael B. Delong (Macedonia, OH); Ashish Pasha Sheikh (Akron, OH)

Assignee: Cisco Technology, Inc.

H04B17/345

Abstract

Claims (61)

1 . A method, comprising:

scanning a plurality of 160 megaHertz (MHz) channels relating to a 6 gigaHertz (GHz) band for a wireless communication network;

generating one or more spectrograms based on the scanning; and

identifying an ultra-wideband interferer for the wireless communication network, using the one or more spectrograms, comprising:

analyzing, using the one or more spectrograms, a period of pulse transmissions by identifying a repetition of FFT samples with power having a period that is greater than a first threshold value and less than a second threshold value.

2 . The method of claim 1 , wherein identifying the ultra-wideband interferer for the wireless communication network, using the one or more spectrograms, comprises analyzing, using the one or more spectrograms, at least one of: (i) power variations relating to one or more channels, (ii) power slopes between one or more pairs of channels, (iii) a power level for one or more channels, and (iv) carrier leakage.

3 . The method of claim 1 , wherein identifying the ultra-wideband interferer for the wireless communication network, using the one or more spectrograms, comprises analyzing, using the one or more spectrograms, at least two of: (i) power variations relating to one or more channels, (ii) power slopes between one or more pairs of channels, (iii) a power level for one or more channels, and (iv) carrier leakage.

4 . The method of claim 1 , wherein identifying the ultra-wideband interferer for the wireless communication network, using the one or more spectrograms, comprises analyzing, using the one or more spectrograms, at least three of: (i) power variations relating to one or more channels, (ii) power slopes between one or more pairs of channels, (iii) a power level for one or more channels, and (iv) carrier leakage.

5 . The method of claim 1 , wherein identifying the ultra-wideband interferer for the wireless communication network, using the one or more spectrograms, comprises analyzing, using the one or more spectrograms, all of: (i) power variations relating to one or more channels, (ii) power slopes between one or more pairs of channels, (iii) a power level for one or more channels, and (iv) carrier leakage.

6 . The method of claim 1 ,

wherein power variations relating to one or more channels are analyzed, comprising:

determining that a power variation across channels 65, 97, and 129 is less than a threshold value.

7 . The method of claim 1 ,

wherein power slopes are analyzed between one or more pairs of channels, comprising:

determining that a slope across channels 1 to 33 exceeds a first threshold value, and

determining that a slope across channels 161 to 193 is less than a second threshold value.

8 . The method of claim 1 ,

wherein a power level for one or more channels is analyzed, comprising:

determining that a median power in channels 1 and 193 are both below a threshold value.

9 . The method of claim 1 ,

wherein carrier leakage is analyzed, comprising:

determining that power at 6489 MHz is greater than power at one or more frequencies other than 6489 MHz for fast Fourier transform (FFT) samples where power is lower than a threshold value.

10 . The method of claim 1 , further comprising:

configuring the wireless communication network based on the identified ultra-wideband interferer.

11 . A system, comprising:

a processor; and

a memory having instructions stored thereon which, when executed on the processor, performs operations comprising:

scanning a plurality of channels relating to a wireless communication network;

generating one or more spectrograms based on the scanning; and

identifying an ultra-wideband interferer for the wireless communication network, using the one or more spectrograms, comprising:

analyzing, using the one or more spectrograms, at least four of: (i) power variations relating to one or more channels, (ii) power slopes between one or more pairs of channels, (iii) a power level for one or more channels, (iv) carrier leakage, and (v) a period of pulse transmissions.

12 . The system of claim 11 ,

wherein scanning the plurality of channels relates to a 6 GHz band for the wireless communication network and comprises scanning 160 Mhz channels,

wherein power variations relating to one or more channels are analyzed, comprising:

determining that a power variation across channels 65, 97, and 129 is less than a threshold value, and

wherein power slopes are analyzed between one or more pairs of channels, comprising:

determining that a slope across channels 1 to 33 exceeds a first threshold value, and

determining that a slope across channels 161 to 193 is less than a second threshold value.

13 . The system of claim 11 ,

wherein scanning the plurality of channels relates to a 6 GHz band for the wireless communication network and comprises scanning 160 Mhz channels,

wherein a power level for one or more channels is analyzed, comprising:

determining that a median power in channels 1 and 193 are both below a wherein carrier leakage is analyzed, comprising:

determining that power at 6489 MHz is greater than power at one or more frequencies other than 6489 MHz for fast Fourier transform (FFT) samples where power is lower than a threshold value, and

wherein a period of pulse transmissions is analyzed, comprising:

identifying a repetition of FFT samples where power has a period that is greater than a first threshold value and less than a second threshold value.

14 . A non-transitory computer-readable medium having instructions stored thereon which, when executed by a processor, performs operations comprising:

scanning a plurality of 160 MHz channels relating to a 6 GHz band for a wireless communication network;

generating one or more spectrograms based on the scanning; and

identifying an ultra-wideband interferer for the wireless communication network, using the one or more spectrograms, comprising:

analyzing, using the one or more spectrograms, power variations relating to one or more channels by determining that a power variation across channels 65, 97, and 129 is less than a threshold value.

15 . The non-transitory computer-readable medium of claim 14 , wherein identifying the ultra-wideband interferer for the wireless communication network, using the one or more spectrograms, comprises analyzing, using the one or more spectrograms, all of: (i) power slopes between one or more pairs of channels, (ii) a power level for one or more channels, (iii) carrier leakage, and (iv) a period of pulse transmissions.

16 . The non-transitory computer-readable medium of claim 14 ,

wherein power slopes are analyzed between one or more pairs of channels, comprising:

determining that a slope across channels 1 to 33 exceeds a first threshold value, and

determining that a slope across channels 161 to 193 is less than a second threshold value.

17 . The non-transitory computer-readable medium of claim 14 ,

wherein a power level for one or more channels is analyzed, comprising:

determining that a median power in channels 1 and 193 are both below a wherein carrier leakage is analyzed, comprising:

determining that power at 6489 MHz is greater than power at one or more frequencies other than 6489 MHz for fast Fourier transform (FFT) samples where power is lower than a threshold value, and

wherein a period of pulse transmissions is analyzed, comprising:

identifying a repetition of FFT samples where power has a period that is greater than a first threshold value and less than a second threshold value.

Assignments (1)

Continuity (1)

References Cited (35)