IP Library Granted Patent US 12696304
Granted Patent B2
US 12696304 · App. 18/324,134 · Granted Jul 28, 2026

Wireless device management

Inventors: Saju Palayur (Poway, CA); Salvador Iranzo Molinero (Betera, ES)
Assignee: MaxLinear, Inc.
H04W72/541H04W52/18H04W64/00H04W72/0453
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Quick Facts
Patent No.
US 12696304
App. No.
18/324,134
Granted
Jul 28, 2026
Kind
B2
Abstract

According to an aspect of an embodiment, an automatic frequency coordination (AFC) server may comprise an AFC database and a processing device. The AFC database may comprise incumbent device data for an incumbent device. The processing device may be configured to determine a mean square error (MSE) value for the incumbent device. The processing device may be configured to compute an interference to noise (I/N) ratio for the incumbent device based on the MSE value for the incumbent device. The processing device may be configured to compute one or more operating frequencies for an access point, wherein the one or more operating frequencies have the I/N ratio of less than a threshold at the incumbent device.

Claims (45)

1 . An access point (AP), comprising:

a processing device configured to:

access an automatic frequency coordination (AFC) server to compare an AFC database frequency for an incumbent device to an AP operational frequency;

determine a predicted interference between a transmission from the AP and the incumbent device when the AP operational frequency is used;

defer transmission until an operating-mode permission is received from the AFC server based on a validated AP location that includes location input relayed by a close-proximity communication device;

determine a power mode based on the predicted interference; and

a transceiver configured to:

transmit a signal on the AP operational frequency at the power mode.

2 . The access point of claim 1 , wherein the AP is in an incumbent transmission path.

3 . The access point of claim 1 , wherein the AP is configured to transmit operational data to the AFC server.

4 . The access point of claim 1 , wherein the AP is configured to transmit on the AP operational frequency that is selected from the group consisting of: an Unlicensed National Information Infrastructure (UNII)-5 frequency band, a UNII-6 frequency band, a UNII-7 frequency band, or a UNII-8 frequency band.

5 . The access point of claim 1 , wherein the power mode includes one or more of: a standard power mode, a low power mode, or a very low power mode.

6 . The access point of claim 1 , wherein the power mode is selected to facilitate the predicted interference of less than a predicted interference-to-noise (I/N) ratio of less than-6 dB.

7 . A non-transitory computer-readable storage medium including computer executable instructions that, when executed by one or more processors, cause an automatic frequency coordination (AFC) server to:

receive one or more operational characteristics from an incumbent device;

attempt to validate an AP location using a close-proximity communication device and defer selecting operating frequencies when validation is insufficient;

estimate an error value at the incumbent device based on the one or more operational characteristics for the incumbent device;

compute a threshold error value for the incumbent device based on a modulation type; and

select an operating frequency that satisfies an interference-to-noise (I/N) threshold at the incumbent device, wherein the server is to apply a protective margin to a link-budget I/N calculation based on the error value at the incumbent device and the threshold error value for the incumbent device.

8 . The non-transitory computer-readable storage medium of claim 7 , wherein the instructions, when executed by the one or more processors, further cause the AFC server to:

query a modem using an application protocol interface (API) to determine an activation difference for an access point.

9 . The non-transitory computer-readable storage medium of claim 7 , wherein the instructions, when executed by the one or more processors, further cause the AFC server to:

switch from a standard power mode to a low power mode when the error value is greater than a threshold for the standard power mode and less than a threshold for the low power mode;

switch from a low power mode to a very low power mode when the error value is greater than a threshold for the low power mode and less than a threshold for the very low power mode; and

switch from a very low power mode to an inactive mode when the error value is greater than a threshold for the very low power mode.

10 . The non-transitory computer-readable storage medium of claim 7 , wherein the instructions, when executed by the one or more processors, further cause the AFC server to:

compute an interference to noise (I/N) ratio for the incumbent device based on the error value for the incumbent device.

11 . The non-transitory computer-readable storage medium of claim 7 , wherein the instructions, when executed by the one or more processors, further cause the AFC server to:

compute a link quality based on the error value, the error value threshold, and the modulation type.

12 . The non-transitory computer-readable storage medium of claim 7 , wherein the instructions, when executed by the one or more processors, further cause the AFC server to:

receive the error value in real-time;

obtain the error value in real-time;

compute the error value in real-time; or

verify the error value in real-time.

13 . A method performed by an access point (AP), the method comprising:

accessing an automatic frequency coordination (AFC) server to compare an AFC database frequency for an incumbent device to an AP operational frequency;

determining a predicted interference between a transmission from the AP and the incumbent device when the AP operational frequency is used;

deferring transmission until an operating-mode permission is received from the AFC server based on a validated AP location that includes location input relayed by a close-proximity communication device;

determining a power mode based on the predicted interference; and

transmitting a signal on the AP operational frequency at the power mode.

14 . The method of claim 13 , wherein the AP is in an incumbent transmission path.

15 . The method of claim 13 , wherein the AP is configured to transmit operational data to the AFC server.

16 . The method of claim 13 , wherein the AP is configured to transmit on the AP operational frequency that is selected from the group consisting of: an Unlicensed National Information Infrastructure (UNII)-5 frequency band, a UNII-6 frequency band, a UNII-7 frequency band, or a UNII-8 frequency band.

17 . The method of claim 13 , wherein the power mode includes one or more of: a standard power mode, a low power mode, or a very low power mode.

18 . The method of claim 13 , wherein the power mode is selected to facilitate the predicted interference of less than a predicted interference-to-noise (I/N) ratio of less than −6 dB.