# US 2026/0101265 A1 · Snr-based connection admission control

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- Number: US 2026/0101265 A1
- Document ID: US20260101265A1
- Status: Published application
- Kind: A1
- Application number: 18/905,652
- Filed: 2024-10-03
- Published: 2026-04-09
- Earliest claimed: 2024-10-03
- Assignees: Comcast Cable Communications, LLC
- Applicants: Comcast Cable Communications, LLC
- Inventors: Naveen Kumar Raju Vysyaraju; Farman Ibayev; Soumya Munshi; Raja Shah
- Web page: https://patentgrep.com/patent/US20260101265A1

## CPC

- H04W 48/02: Access restriction performed under specific conditions
- H04B 17/346: {Noise values (signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] H04B17/336)}
- H04L 63/0876: {based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint}
- H04L 63/0892: {by using authentication-authorization-accounting [AAA] servers or protocols}
- H04W 12/06: Authentication
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

Methods may comprise receiving, at a network access point associated with a network, a request for access to the network from a user device. Based on an analysis of a signal between the user device and the network access point, a signal-to-noise ratio (SNR) may be determined. Access to the network may be based on at least a comparison of the SNR to a SNR threshold.

## Claims

### Claim 1

A method comprising:
receiving, at a network access point associated with a network, a request for access to the network associated with a user device;
determining, based on an analysis of a signal between the user device and the network access point, a signal-to-noise ratio (SNR) associated with the request;
transmitting a query to an authentication server, wherein the query comprises an identifier and the SNR, and wherein the authentication server is configured to grant or deny access to the network based on at least a comparison of the SNR to a SNR threshold;
receiving an access signal indicative of access grant or denial from the authentication server; and
transmitting, to the user device and based on the request for access and the access signal, a response associated with the request for access to the networks.

### Claim 2 (depends on 1)

The method of claim 1, wherein the request for access is associated with an open, public network.

### Claim 3 (depends on 1)

The method of claim 1, wherein the identifier is a media access control (MAC) address associated with the network access point.

### Claim 4 (depends on 1)

The method of claim 1, further comprising initiating, based on grant of access to the network, a 4-way handshake process between the user device, the network access point, and the authentication server.

### Claim 5 (depends on 1)

The method of claim 1, further comprising initiating, based on grant of access to the network, an Extensible Authentication Protocol (EAP) over local area network (LAN) process.

### Claim 6 (depends on 1)

The method of claim 1, wherein the transmitting the query to the authentication server is an access request as part of an authentication, authorization, and accounting (AAA) management system.

### Claim 7 (depends on 1)

The method of claim 1, wherein the transmitting the query to the authentication server is an access request as part of a Remote Authentication Dial-In User Service (RADIUS) protocol.

### Claim 8 (depends on 1)

The method of claim 1, wherein the transmitting the response to the user device comprises causing an error message to appear on the user device, wherein the error message indicates that the SNR is too low to allow access to the network.

### Claim 9

A method comprising:
receiving, at a network access point associated with a network, a request for access to the network from a user device;
determining, based on an analysis of a signal between the user device and the network access point, a signal-to-noise ratio (SNR) associated with the request;
transmitting a query to an authentication server, wherein the query comprises an identifier and the SNR;
receiving an access signal indicative of access denial from the authentication server, wherein the access denial is based at least in part on a determination that the SNR is less than a SNR threshold; and
transmitting, to the user device and based on the request for access and the access signal, a response associated with the request for access to the networks.

### Claim 10 (depends on 9)

The method of claim 9, wherein the identifier is a media access control (MAC) address associated with the network access point.

### Claim 11 (depends on 9)

The method of claim 9, wherein the transmitting the query to the authentication server is an access request as part of an authentication, authorization, and accounting (AAA) management system.

### Claim 12 (depends on 9)

The method of claim 9, wherein the transmitting the query to the authentication server is an access request as part of a Remote Authentication Dial-In User Service (RADIUS) protocol.

### Claim 13 (depends on 9)

The method of claim 9, wherein the transmitting the response to the user device comprises causing an error message to appear on the user device, wherein the error message indicates that the SNR is too low to allow access to the network.

### Claim 14

A method comprising:
receiving, at an authentication server and from a network access point associated with a network, a query comprising an identifier associated with the network access point and a signal to noise ratio (SNR) based on analysis of a signal between a user device and the network access point, wherein the SNR is associated with a request for network access by the user device;
determining to grant or deny access to the network based on at least a comparison of the SNR to a SNR threshold; and
transmitting, via the authentication server and to the network access point, an access signal indicative of a determination to grant or deny access to the network.

### Claim 15 (depends on 14)

The method of claim 14, wherein the request for access is associated with an open, public network.

### Claim 16 (depends on 14)

The method of claim 14, wherein the identifier is a media access control (MAC) address associated with the network access point.

### Claim 17 (depends on 14)

The method of claim 14, further comprising initiating, based on grant of access to the network, a 4-way handshake process between the user device, the network access point, and the authentication server.

### Claim 18 (depends on 14)

The method of claim 14, further comprising initiating, based on grant of access to the network, an Extensible Authentication Protocol (EAP) over local area network (LAN) process.

### Claim 19 (depends on 14)

The method of claim 14, wherein the authentication server is associated with an authentication, authorization, and accounting (AAA) management system.

### Claim 20 (depends on 14)

The method of claim 14, wherein the authentication server is configured to communicate via a Remote Authentication Dial-In User Service (RADIUS) protocol.
