# US 2026/0074833 A1 · Dynamic interference response in wireless local area networks

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- Number: US 2026/0074833 A1
- Document ID: US20260074833A1
- Status: Published application
- Kind: A1
- Application number: 19/385,034
- Filed: 2025-11-10
- Published: 2026-03-12
- Earliest claimed: 2023-02-23
- Assignees: Cisco Technology, Inc.
- Applicants: Cisco Technology, Inc.
- Inventors: Indermeet S. GANDHI; Malcolm M. SMITH; Jerome HENRY
- Web page: https://patentgrep.com/patent/US20260074833A1

## CPC

- H04L 1/0068: {by puncturing}
- H04B 17/336: Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04B: TRANSMISSION

## Abstract

An unsafe frequency report from a client device is received, the unsafe frequency report indicating that the client device is experiencing interference on a set of frequencies. A set of safe frequencies is identified, for the client device, based on interference indicated in the unsafe frequency report, and dynamic puncturing is performed based on the unsafe frequency report, comprising identifying an allocation of wireless resources for the client device during a transmission opportunity based on the set of safe frequencies, where the allocation of wireless resources punctures one or more of the set of frequencies, and communicating with the client device using the allocation of wireless resources.

## Claims

### Claim 1

A method, comprising:
determining, by a wireless access point (AP) of a set of wireless APs, a first unsafe frequency report, the first unsafe frequency report indicating that a first client device is experiencing interference on a first set of frequencies;
identifying, for the first client device, a set of safe frequencies based on interference indicated in the first unsafe frequency report; and
performing dynamic puncturing based on the first unsafe frequency report, comprising:
identifying an allocation of wireless resources for the first client device during a first transmission opportunity based on the set of safe frequencies and a set of unsafe frequency reports for the set of wireless APs, wherein the allocation of wireless resources punctures one or more of the first set of frequencies; and
communicating with the first client device using the allocation of wireless resources.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
determining, by the wireless AP, a set of unsafe frequency reports for a set of client devices; and
performing dynamic puncturing based on the set of unsafe frequency reports.

### Claim 3 (depends on 2)

The method of claim 2, wherein identifying the allocation of wireless resources for the first client device is performed based on evaluating the set of unsafe frequency reports for the set of wireless APs.

### Claim 4 (depends on 1)

The method of claim 1, wherein identifying the set of safe frequencies comprises identifying, based on the first unsafe frequency report, that interference on each respective frequency of the set of safe frequencies is satisfies one or more criteria.

### Claim 5 (depends on 1)

The method of claim 1, wherein the first unsafe frequency report is provided by the first client device upon association to the wireless AP.

### Claim 6 (depends on 1)

The method of claim 1, further comprising:
determining, by the wireless AP, an updated unsafe frequency report for the first client device; and
performing dynamic puncturing based on the updated unsafe frequency report.

### Claim 7 (depends on 6)

The method of claim 6, wherein the first client device transmitted the updated unsafe frequency report in response to determining that interference experienced by the first client device has changed.

### Claim 8 (depends on 6)

The method of claim 6, wherein the first client device transmitted the updated unsafe frequency report in response to a query transmitted, by the wireless AP, to the first client device.

### Claim 9 (depends on 1)

The method of claim 1, wherein performing dynamic puncturing based on the first unsafe frequency report further comprises:
generating a second allocation of wireless resources for a second client device during the first transmission opportunity, wherein the second allocation of wireless resources does not puncture the first set of frequencies; and
communicating with the second client device using the second allocation of wireless resources.

### Claim 10

A non-transitory computer-readable medium containing computer program code that, when executed by operation of one or more computer processors, performs an operation comprising:
determining, by a wireless access point (AP) of a set of wireless APs, a first unsafe frequency report, the first unsafe frequency report indicating that a first client device is experiencing interference on a first set of frequencies;
identifying, for the first client device, a set of safe frequencies based on interference indicated in the first unsafe frequency report; and
performing dynamic puncturing based on the first unsafe frequency report, comprising:
identifying an allocation of wireless resources for the first client device during a first transmission opportunity based on the set of safe frequencies and a set of unsafe frequency reports for the set of wireless APs, wherein the allocation of wireless resources punctures one or more of the first set of frequencies; and
communicating with the first client device using the allocation of wireless resources.

### Claim 11 (depends on 10)

The non-transitory computer-readable medium of claim 10, the operation further comprising:
determining, by the wireless AP, a set of unsafe frequency reports for a set of client devices; and
performing dynamic puncturing based on the set of unsafe frequency reports, wherein identifying the allocation of wireless resources for the first client device is performed based on evaluating the set of unsafe frequency reports for the set of wireless APs.

### Claim 12 (depends on 10)

The non-transitory computer-readable medium of claim 10, wherein identifying the set of safe frequencies comprises identifying, based on the first unsafe frequency report, that interference on each respective frequency of the set of safe frequencies is satisfies one or more criteria.

### Claim 13 (depends on 10)

The non-transitory computer-readable medium of claim 10, the operation further comprising:
determining, by the wireless AP, an updated unsafe frequency report for the first client device; and
performing dynamic puncturing based on the updated unsafe frequency report.

### Claim 14 (depends on 13)

The non-transitory computer-readable medium of claim 13, wherein the first client device transmitted the updated unsafe frequency report in response to determining that interference experienced by the first client device has changed.

### Claim 15 (depends on 10)

The non-transitory computer-readable medium of claim 10, wherein performing dynamic puncturing based on the first unsafe frequency report further comprises:
generating a second allocation of wireless resources for a second client device during the first transmission opportunity, wherein the second allocation of wireless resources does not puncture the first set of frequencies; and
communicating with the second client device using the second allocation of wireless resources.

### Claim 16

A system, comprising:
one or more computer processors; and
a memory containing a program which when executed by the one or more computer processors performs an operation, the operation comprising:
determining, by a wireless access point (AP) of a set of wireless APs, a first unsafe frequency report, the first unsafe frequency report indicating that a first client device is experiencing interference on a first set of frequencies;
identifying, for the first client device, a set of safe frequencies based on interference indicated in the first unsafe frequency report; and
performing dynamic puncturing based on the first unsafe frequency report, comprising:
identifying an allocation of wireless resources for the first client device during a first transmission opportunity based on the set of safe frequencies and a set of unsafe frequency reports for the set of wireless APs, wherein the allocation of wireless resources punctures one or more of the first set of frequencies; and
communicating with the first client device using the allocation of wireless resources.

### Claim 17 (depends on 16)

The system of claim 16, the operation further comprising:
determining, by the wireless AP, a set of unsafe frequency reports for a set of client devices; and
performing dynamic puncturing based on the set of unsafe frequency reports, wherein identifying the allocation of wireless resources for the first client device is performed based on evaluating the set of unsafe frequency reports for the set of wireless APs.

### Claim 18 (depends on 16)

The system of claim 16, wherein identifying the set of safe frequencies comprises identifying, based on the first unsafe frequency report, that interference on each respective frequency of the set of safe frequencies is satisfies one or more criteria.

### Claim 19 (depends on 16)

The system of claim 16, the operation further comprising:
determining, by the wireless AP, an updated unsafe frequency report for the first client device; and
performing dynamic puncturing based on the updated unsafe frequency report.

### Claim 20 (depends on 16)

The system of claim 16, wherein performing dynamic puncturing based on the first unsafe frequency report further comprises:
generating a second allocation of wireless resources for a second client device during the first transmission opportunity, wherein the second allocation of wireless resources does not puncture the first set of frequencies; and
communicating with the second client device using the second allocation of wireless resources.
