PICKING AN OPTIMAL CHANNEL FOR AN ACCESS POINT IN A WIRELESS NETWORK
First Claim
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1. A method comprising:
- selecting a first narrowband channel;
determining first one or more channel loading indicators associated with respective one or more neighboring access points (APs) on the first narrowband channel;
deriving a first channel load metric from the channel loading indicators;
selecting a second narrowband channel;
determining second one or more channel loading indicators associated with respective one or more neighboring APs on the second narrowband channel;
deriving a second channel load metric from the second channel loading indicators;
combining the first channel load metric and the second channel load metric to obtain a wideband channel load metric.
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Abstract
A novel technique involves evaluating a real-time environment of a channel based on a nonlinear function of the number of neighbor radios and channel utilization requirements. The technique can be used to pick a channel for an AP that is added to a wireless network or to tune a channel for an existing AP. The technique can be applied to, for example, a relatively new wideband option in the 802.11n standard.
176 Citations
20 Claims
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1. A method comprising:
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selecting a first narrowband channel; determining first one or more channel loading indicators associated with respective one or more neighboring access points (APs) on the first narrowband channel; deriving a first channel load metric from the channel loading indicators; selecting a second narrowband channel; determining second one or more channel loading indicators associated with respective one or more neighboring APs on the second narrowband channel; deriving a second channel load metric from the second channel loading indicators; combining the first channel load metric and the second channel load metric to obtain a wideband channel load metric. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a wireless network environment monitoring engine coupled to a wireless network; a stations database coupled to the wireless network environment monitoring engine; a wideband channel selection engine coupled to the stations database; an access point (AP) coupled to the wideband channel selection engine; wherein, in operation; the wireless network environment monitoring engine obtains data associated with stations in the wireless network; the wireless network environment monitoring engine stores the data in the stations database; the wideband channel selection engine uses the data associated with stations neighboring the AP to calculate narrowband channel load metrics for narrowband channels; the wideband channel selection engine combines the narrowband channel load metrics to obtain wideband channel load metrics for one or more wideband channels available to the AP. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method comprising:
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providing a stations database associated with a wireless network; determining a channel load metric for each available channel by; determining channel loading indicators for a plurality of neighboring APs; computing a function for each of the channel loading indicators; combining the function for each of the channel loading indicators; combining a first sub-plurality of load metrics of the channel load metric for each available channel to obtain a wideband channel load metric; picking a channel to optimize throughput for the wireless network using the channel load metric associated with at least one available channel. - View Dependent Claims (18, 19, 20)
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Specification