Automated Frequency Coordination Registration

Patent metadata

Field	Value
Publication number	US-2026040194-A1
Application number	US-202418795038-A
Country	US
Kind code	A1
Filing date	Aug 5, 2024
Priority date	Aug 5, 2024
Publication date	Feb 5, 2026
Grant date	—

Abstract

Devices, systems, methods, and processes for location discovery of an access point (AP) are described herein. The AP, after a reboot event, is required to transmit a current location for automated frequency coordination (AFC) registration. However, the current location may be unknown to the AP. To address this, a device is provided with a location discovery logic that determines the current location of the AP. The device may receive first neighborhood discovery data (NDD) of the AP after first boot event and may generate an RF proximity map based on the first NDD. The device may receive the second NDD of the AP based on the reboot event. The device may compare the second NDD with the RF proximity map, and if the second NDD matches the RF proximity map, the device may determine the current location to be same as a reference location associated with the RF proximity map.

First claim

What is claimed is:

1 . A device, comprising:
a processor; a network interface controller configured to provide access to a network; and a memory communicatively coupled to the processor, wherein the memory comprises a location discovery logic that is configured to:
generate a radio frequency (RF) proximity map associated with a reference location;
receive neighborhood discovery data from a network device; and
determine that a current location of the network device is same as the reference location based on the RF proximity map and the neighborhood discovery data.

2 . The device of claim 1 , wherein the location discovery logic receives the neighborhood discovery data based on a reboot of the network device.

3 . The device of claim 2 , wherein the reference location associated with the RF proximity map is a last known location of the network device prior to the reboot.

4 . The device of claim 1 , wherein the neighborhood discovery data comprises at least one of: a received signal strength indicator (RSSI), a service set identifier (SSID), or a basic service set identifier (BSSID), associated with the network device.

5 . The device of claim 4 , wherein the neighborhood discovery data further comprises at least one of: echo data, beacon data, SSID data, BSSID data, or RSSI data, associated with one or more other network devices.

6 . The device of claim 5 , wherein the one or more other network devices are positioned within a threshold proximity of the network device.

7 . The device of claim 1 , wherein the network includes a plurality of RF channels.

8 . The device of claim 7 , wherein the location discovery logic is further configured to receive the neighborhood discovery data for one or more RF channels of the plurality of RF channels.

9 . The device of claim 1 , wherein the location discovery logic generates the RF proximity map at a first boot event of the network device.

10 . The device of claim 9 , wherein the location discovery logic is further configured to periodically update the RF proximity map.

11 . The device of claim 9 , wherein prior to generating the RF proximity map, the location discovery logic is further configured to receive at least one of: an RSSI, an SSID, or a BSSID, associated with the network device at the first boot event.

12 . The device of claim 11 , wherein prior to generating the RF proximity map, the location discovery logic is further configured to receive at least one of: echo data, beacon data, SSID data, BSSID data, or RSSI data, associated with one or more other network devices within a threshold proximity of the network device at the first boot event.

13 . The device of claim 12 , wherein the location discovery logic generates the RF proximity map based on at least one of: the RSSI, the SSID, or the BSSID, associated with the network device at the first boot event and at least one of: the echo data, the beacon data, the SSID data, the BSSID data, or the RSSI data, associated with the one or more other network devices at the first boot event.

14 . The device of claim 13 , wherein at least one other network device of the one or more other network devices is coupled with the device.

15 . The device of claim 14 , wherein the location discovery logic is further configured to determine the current location of the network device based on a physical address of the at least one other network device.

16 . The device of claim 1 , wherein the location discovery logic is further configured to transmit the current location of the network device to an Automated Frequency Coordination (AFC) server.

17 . The device of claim 16 , wherein the location discovery logic is further configured to:
receive AFC configuration data from the AFC server based on the transmission of the current location of the network device; and configure the network device based on the AFC configuration data.

18 . The device of claim 1 , wherein for determining the current location of the network device, the location discovery logic is further configured to:
compare the RF proximity map with the neighborhood discovery data; and determine an RF neighborhood stability (RNS) score based on the comparison, wherein the determination that the current location of the network device is same as the reference location is based on the RNS score being greater than a threshold probability score.

19 . A device, comprising:
a processor; a network interface controller configured to provide access to a network; and a memory communicatively coupled to the processor, wherein the memory comprises a location discovery logic that is configured to:
transmit, to a network device, first neighborhood discovery data corresponding to a known location of the device;
detect a reboot event of the device;
transmit, in response to detecting the reboot event, second neighborhood discovery data to the network device while a current location of the device is unknown; and
receive Automated Frequency Coordination (AFC) configuration data from the network device based on a match of the second neighborhood discovery data with the first neighborhood discovery data.

20 . A method, comprising:
generating a radio frequency (RF) proximity map associated with a reference location; receiving neighborhood discovery data from a network device; and determining that a current location of the network device is same as the reference location based on the RF proximity map and the neighborhood discovery data.

Assignees

• Cisco Tech Inc

Inventors

• Henry Jerome
• Amini Peiman
• Macpherson Matthew S
• Alizadeh Ardalan

Classifications

• H04W48/16 Primary

  Discovering, processing access restriction or access information · CPC title