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AUTOMATICALLY CONFIGURING ACCESS POINTS IN A DYNAMIC ENVIRONMENT

IP.com Disclosure Number: IPCOM000246930D
Publication Date: 2016-Jul-15
Document File: 8 page(s) / 226K

Publishing Venue

The IP.com Prior Art Database

Related People

Ryan S. D’Souza: AUTHOR [+2]

Abstract

Presented herein are a system and method that automatically reconfigure individual settings of a group of access points (APs) for a radio resource management (RRM) solution so that the group of APs can adapt to a new set of environmental conditions. More specifically, the techniques provided herein alter convergence parameters in an 802.11 unlicensed band operation. For example, in a conference center or school room, air-walls, booths, or other pre-defined barriers (referred to collectively simply as air walls herein, for simplicity) can be added or removed and the techniques provided herein detect these changes and alter the APs accordingly. Without these techniques, the removal or addition of air-walls may substantially affect the performance of the system.

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AUTOMATICALLY CONFIGURING ACCESS POINTS IN A DYNAMIC ENVIRONMENT

AUTHORS:

Ryan S. D'Souza Al Dumdei

CISCO SYSTEMS, INC.

ABSTRACT

    Presented herein are a system and method that automatically reconfigure individual settings of a group of access points (APs) for a radio resource management (RRM) solution so that the group of APs can adapt to a new set of environmental conditions. More specifically, the techniques provided herein alter convergence parameters in an 802.11 unlicensed band operation. For example, in a conference center or school room, air-walls, booths, or other pre-defined barriers (referred to collectively simply as air walls herein, for simplicity) can be added or removed and the techniques provided herein detect these changes and alter the APs accordingly. Without these techniques, the removal or addition of air-walls may substantially affect the performance of the system.

DETAILED DESCRIPTION

    Reconfigurable physical environments, such as a school or convention center, frequently undergo physical changes, such as the addition or removal of air walls (e.g., operable partitions), from event to event and/or day by day. For example, convention centers frequently host vertical and horizontal industry markets (e.g., conventions) and, thus, are highly dynamic environments, both in terms of density of users and the physical infrastructure of the host building. However, shifts in the physical environment may cause information technology (IT) infrastructure, and in particular the APs, to no longer be in an optimal configuration. Consequently, a facility hosting the reconfigurable physical environment must either reconfigure the parameters/settings of APs (e.g., transmitter power control (TPC), Start of Packet Detection (SoP), etc.) every time the

Copyright 2016 Cisco Systems, Inc.

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environment is changed or suffer non-optimal performance for one or more facility configurations.

    For example, consider a scenario in which APs are disposed in a convention center and designated to be part of AP Group 1 with RF Profile 1, which defines TPC min, in dBm (decibel-miliwatts) TPC max (dBm), TPC Threshold (target RSSI in dBm at neighbor AP), lowest mandatory data rate Mbps (Megabit per Second), and RxSOP - (sensitivity threshold in dBm). Initially, walls in the convention center may divide the 10APs into 5 rooms, with 2 APs in each room and the settings of RF profile 1 may be sufficient. However, when these walls get removed to provide a single, large room, all the settings remain the same. When RRM operations run, the APs may power down based TPC threshold settings since RF Profile 1 still defines the limits of tuning leaving potential gaps in coverage. This fails to sufficiently
account for the presence or absence of the walls, booths,
or other such structures and, thus, an IT administrator
would have to manually reset the values listed above to
put the facility in an optimized condition.

    In at least some scenarios, the walls...