Method and system for providing adaptive probe requests
First Claim
1. A method of receiving RF signal quality information comprising the steps of:
- at a first station, receiving a plurality of probe responses transmitted from an access point to the first station over a channel;
determining a current transmit rate of the probe responses;
synchronizing signal processing to the current transmit rate of the probe responses; and
processing the probe responses to determine a signal quality of the channel or a transmission protocol being used over the channel;
wherein the probe responses are transmitted in reply to probe requests generated by a second station and wherein the probe requests are transmitted from the second station to the access point and the probe requests transmitted from the second station to the access point are based on the timing of probe requests initially transmitted from the first station to the access point.
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Accused Products
Abstract
A method of providing RF signal quality information which includes the step of a probe request generator (110) monitoring a channel for probe requests being transmitted by a station (115) and/or probe responses being transmitted by an access point (105). The probe request generator can determine a time period between the successive probe request transmissions received from the station or successive probe responses received from the AP. The probe request generator can generate a series of probe requests (150) having the determined time period between successive probe request transmissions. The series of probe requests signal an access point (105) to transmit probe responses (155) which are detectable by the station.
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Citations
17 Claims
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1. A method of receiving RF signal quality information comprising the steps of:
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at a first station, receiving a plurality of probe responses transmitted from an access point to the first station over a channel; determining a current transmit rate of the probe responses; synchronizing signal processing to the current transmit rate of the probe responses; and processing the probe responses to determine a signal quality of the channel or a transmission protocol being used over the channel; wherein the probe responses are transmitted in reply to probe requests generated by a second station and wherein the probe requests are transmitted from the second station to the access point and the probe requests transmitted from the second station to the access point are based on the timing of probe requests initially transmitted from the first station to the access point. - View Dependent Claims (2, 3)
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4. A method for providing RF signal quality information comprising the steps of:
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from a probe request generator, monitoring a channel for probe requests being transmitted by a station to a first access point; determining a time period between successive probe request transmissions from the station to the first access point; and from the probe request generator and in response to the probe requests being transmitted from the station to the first access point, transmitting a series of probe requests having the determined time period between successive probe request transmissions; wherein the series of probe requests signal the first access point to transmit probe responses which are detectable by the station. - View Dependent Claims (5, 6, 7, 8, 9)
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10. A method for providing RF signal quality information comprising the steps of:
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from a probe request generator, monitoring a channel for probe responses being transmitted by a first access point to a station; determining a time period between successive probe response transmissions; and from the probe request generator and in response to the probe responses being transmitted by the first access point to the station, transmitting a plurality of probe requests having the determined time period between successive probe response transmissions; wherein the probe requests transmitted from the probe request generator signal the first access point to transmit probe responses which are detectable by the station. - View Dependent Claims (11, 12)
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13. A device for generating probe requests comprising:
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a probe request processor which receives probe requests generated by a station for transmission to a first access point and determines a time period between successive probe requests that are received from the station; a probe request timing database which stores time stamps associated with the probe requests; and a probe request scheduler which schedules probe request transmissions at intervals correlating to the determined time period between the received probe requests; wherein the probe request transmissions signal the first access point to transmit probe responses which are detectable by the station. - View Dependent Claims (14, 15, 16)
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17. A system for synchronizing a radio transceiver to a wireless local area network, comprising:
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a first receiver for receiving a plurality of probe responses over a channel in response to at least one probe request, wherein the probe responses are transmitted from an access point in response to probe requests transmitted from another device to the access point, wherein the probe requests transmitted from the other device to the access point are transmitted based on the timing of probe requests that are initially transmitted from the first receiver to the access point; a processor in the radio transceiver operable to; initiate a probe request if no probe responses are detected at the first receiver; stop further probe requests if probe responses in response to probe requests from the other device are received at the radio receiver; and synchronize to the probe requests from the other device or the probe responses transmitted from the access point in response to the probe requests transmitted from the other device.
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Specification