# US 2026/0101205 A1 · Upgrading wireless infrastructure through scheduling

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- Number: US 2026/0101205 A1
- Document ID: US20260101205A1
- Status: Published application
- Kind: A1
- Application number: 19/417,539
- Filed: 2025-12-12
- Published: 2026-04-09
- Earliest claimed: 2020-08-28
- Assignees: Cisco Technology, Inc.
- Applicants: Cisco Technology, Inc.
- Inventors: Vinay Saini; Ankush Ganpatrai Arora; Midhun Kumar Gundavarapu; Jerome Henry
- Web page: https://patentgrep.com/patent/US20260101205A1

## CPC

- H04W 24/02: Arrangements for optimising operational condition
- H04L 67/34: {involving the movement of software or configuration parameters (network booting or remote initial program loading [RIPL] G06F9/4416)}
- H04W 36/22: for handling the traffic
- H04W 36/38: by fixed network equipment
- H04W 48/02: Access restriction performed under specific conditions
- H04W 52/143: {Downlink power control}
- H04W 52/40: during macro-diversity or soft handoff
- H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX]
- H04W 36/00835: {Determination of neighbour cell lists}
- H04W 84/12: WLAN [Wireless Local Area Networks]
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

Wireless infrastructure upgrading may be provided. An Access Point (AP) may be caused to decline new association requests received from client devices not associated with the AP. Next, the AP may be caused to instruct client devices associated with the AP that detect a signal level from the AP to be below their roaming margin to roam away from the AP. Then the power of the signal level from the AP may be decreased by a predetermined amount. Causing the AP to instruct client devices associated with the AP that detect the signal level from the AP to be below their roaming margin to roam away from the AP and decreasing the power of the signal level from the AP may be repeated until the power of the signal level from the AP is at a predetermined level.

## Claims

### Claim 1

A method comprising:
determining best nearest Access Points (APs) for client devices associated with a first AP to roam to;
increasing power of signal levels from the best nearest APs; and
upgrading software on the first AP in response to the client devices associated with the first AP roaming to the best nearest APs in response to increasing power of the signal levels from the best nearest APs.

### Claim 2 (depends on 1)

The method of claim 1, wherein determining the best nearest APs for the client devices associated with the first AP to roam to comprises determining the best nearest APs based on Received Signal Strength Indicator (RSSI) values from neighbor tables received from the client devices associated with the first AP.

### Claim 3 (depends on 1)

The method of claim 1, wherein the first AP is processing critical traffic.

### Claim 4 (depends on 3)

The method of claim 3, wherein the critical traffic comprises at least one of the following: voice traffic; video traffic; virtual reality; augmented reality; and sensor information traffic.

### Claim 5 (depends on 1)

The method of claim 1, wherein when client devices remain associated with the first AP when the power of the signal levels from the best nearest APs are increased, introducing by the first AP session timers that are communicated to the client devices that remain associated with the AP when the power of the signal levels from the best nearest APs are increased wherein upgrading the software on the first AP is performed when the session timers expire.

### Claim 6 (depends on 5)

The method of claim 5, wherein the session timers are set to times long enough to allow corresponding flows to complete.

### Claim 7 (depends on 1)

The method of claim 1, further comprising reinjecting client session information to the first AP once the software upgrade of the first AP is complete.

### Claim 8

A system comprising:
a memory storage; and
a processing unit coupled to the memory storage, wherein the processing unit is operative to:
determine best nearest Access Points (APs) for client devices associated with a first AP to roam to;
increase power of signal levels from the best nearest APs; and
upgrade software on the first AP in response to the client devices associated with the first AP roaming to the best nearest APs in response to increasing power of the signal levels from the best nearest APs.

### Claim 9 (depends on 8)

The system of claim 8, wherein the processing unit being operative to determine the best nearest APs for the client devices associated with the first AP to roam to comprises the processing unit being operative to determine the best nearest APs based on Received Signal Strength Indicator (RSSI) values from neighbor tables received from the client devices associated with the first AP.

### Claim 10 (depends on 8)

The system of claim 8, wherein the first AP is processing critical traffic.

### Claim 11 (depends on 10)

The system of claim 10, wherein the critical traffic comprises at least one of the following: voice traffic; video traffic; virtual reality; augmented reality; and sensor information traffic.

### Claim 12 (depends on 8)

The system of claim 8, wherein when client devices remain associated with the first AP when the power of the signal levels from the best nearest APs are increased, introducing by the first AP session timers that are communicated to the client devices that remain associated with the AP when the power of the signal levels from the best nearest APs are increased wherein upgrading the software on the first AP is performed when the session timers expire.

### Claim 13 (depends on 12)

The system of claim 12, wherein the session timers are set to times long enough to allow corresponding flows to complete.

### Claim 14

A computer-readable medium that stores a set of instructions which when executed perform a method executed by the set of instructions comprising:
determining best nearest Access Points (APs) for client devices associated with a first AP to roam to;
increasing power of signal levels from the best nearest APs; and
upgrading software on the first AP in response to the client devices associated with the first AP roaming to the best nearest APs in response to increasing power of the signal levels from the best nearest APs.

### Claim 15 (depends on 14)

The computer-readable medium of claim 14, wherein determining the best nearest APs for the client devices associated with the first AP to roam to comprises determining the best nearest APs based on Received Signal Strength Indicator (RSSI) values from neighbor tables received from the client devices associated with the first AP.

### Claim 16 (depends on 14)

The computer-readable medium of claim 14, wherein the first AP is processing critical traffic.

### Claim 17 (depends on 16)

The computer-readable medium of claim 16, wherein the critical traffic comprises at least one of the following: voice traffic; video traffic; virtual reality;
augmented reality; and sensor information traffic.

### Claim 18 (depends on 14)

The computer-readable medium of claim 14, wherein when client devices remain associated with the first AP when the power of the signal levels from the best nearest APs are increased, introducing by the first AP session timers that are communicated to the client devices that remain associated with the AP when the power of the signal levels from the best nearest APs are increased wherein upgrading the software on the first AP is performed when the session timers expire.

### Claim 19 (depends on 18)

The computer-readable medium of claim 18, wherein the session timers are set to times long enough to allow corresponding flows to complete.

### Claim 20 (depends on 14)

The computer-readable medium of claim 14, further comprising reinjecting client session information to the first AP once the software upgrade of the first AP is complete.
