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US 9,807,813 B2Granted
Probe response suppression
AssigneeCisco Technology, Inc.
InventorsBrian D. Hart, John Matthew Swartz, Joshua Suhr, Matthew A. Silverman, Tak Ming Pang
Life of this patent
Estimating the term…
Abstract
In response to receiving a probe request from a mobile client, an access point determines whether it should suppress a probe response. The access point receives a probe request from a wireless client device, and prepares a probe response to respond to the probe request. The access point determines whether the wireless client device is likely to associate with the wireless access point. Responsive to a determination that the wireless client device is unlikely to associate with the wireless access point, the access point suppresses the transmission of the probe response.
Claims27
A method comprising:
- receiving a probe request at a wireless access point from a wireless client device;
- preparing a probe response to respond to the probe request;
- determining whether the wireless client device is likely to associate with the wireless access point;
- and
- responsive to a determination that the wireless client device is unlikely to associate with the wireless access point, delaying transmission of the probe response by a predetermined amount of time if a signal strength of the probe request is lower than a first threshold, wherein the predetermined amount of time increases as a difference between the signal strength of the probe request and the first threshold increases.
2 more elements
An apparatus comprising:
- a wireless network interface unit to provide access to a wireless network for a wireless client device;
- a processor coupled to the wireless network interface unit, wherein the processor is configured to:
- receive via the wireless network interface, a probe request from the wireless client device;
- prepare a probe response to respond to the probe request;
- determine whether the wireless client device is likely to access the wireless network through the apparatus;
- and
- responsive to a determination that the wireless client device is unlikely to access the wireless network through the apparatus, delay transmission of the probe response by a predetermined amount of time if a signal strength of the probe request is lower than a first threshold, wherein the predetermined amount of time increases as a difference between the signal strength of the probe request and the first threshold increases.
4 more elements
A system comprising:
- a plurality of wireless access points to provide access to one or more wireless networks;
- a first wireless access point among the plurality of wireless access points to:
- receive a probe request from a wireless client device;
- prepare a probe response to respond to the probe request;
- determine whether the wireless client device is likely to access the one or more wireless networks through the first wireless access point;
- and
- responsive to a determination that the wireless client device is unlikely to access the one or more wireless networks through the first wireless access point, delay transmission of the probe response by a predetermined amount of time if a signal strength of the probe request is lower than a first threshold, wherein the predetermined amount of time increases as a difference between the signal strength of the probe request and the first threshold increases.
4 more elements
A method comprising:
- receiving a probe request at a central controller in communication with a plurality of radio transceivers, the probe request being forwarded from at least one of the plurality of radio transceivers as a first baseband signal received from a wireless client device;
- preparing a probe response to respond to the probe request;
- determining a particular radio transceiver among the plurality of radio transceivers that is likely to associate with the wireless client device;
- causing delay of transmission of the probe response by the particular radio transceiver by a predetermined amount of time if a signal strength of the probe request is lower than a first threshold, wherein the predetermined amount of time increases as a difference between the signal strength of the probe request and the first threshold increases;
- and
- providing the probe response to the particular radio transceiver as a second baseband signal.
3 more elements
Dependencies are inferred from the claim text.