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Last Response from ESS to Probe Request

Last Response from ESS to Probe Request. Authors:. Date: 2012-03-05. Abstract. The presentation enables to indicate the last response from the ESS to the Probe Request frame. When the scanning STA knows that ESS has transmitted the last response:

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Last Response from ESS to Probe Request

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  1. Last Response from ESS to Probe Request Authors: • Date:2012-03-05 Jarkko Kneckt, Nokia

  2. Abstract • The presentation enables to indicate the last response from the ESS to the Probe Request frame. • When the scanning STA knows that ESS has transmitted the last response: • - The STA knows when to stop waiting for more responses • - The STA knows when it should transmit a new probe request Jarkko Kneckt, Nokia

  3. Recap, Probe Request and Probe Response exchange • The Probe Request may be transmitted to a broadcast address and it may be responded by many APs • An AP responds to a Probe Request by transmitting a Probe Response or Beacon frame • The AP may respond to multiple requests with a single frame • Information of other BSSs may be included to the response • If AP receives its own operating parameters from other STA response the AP may not transmit Probe Response Jarkko Kneckt, Nokia

  4. No More Responses from ESS field FILS Response parameters: The No More Responses from ESS field is set to 1 to indicate that the Beacon or Probe Response frame is the last transmitted response to the Probe Request frame from the ESS and otherwise set to 0. Jarkko Kneckt, Nokia

  5. Benefits • When scanning STA knows the ESSs will not transmit more responses: • The scanning STA knows to transmit new Probe Request to solicit more detailed responses from the BSS in the ESS • The scanning STA knows to stop receiving at the channel • Especially if responses from precise number of ESS were requested, the scanning may be terminated precisely Jarkko Kneckt, Nokia

  6. Motions for specification framework document • Motion 1. • Do you agree to add No More Responses from the ESS field to the FILS Response Paramters? (As described in slide 4 in this presentation.) • Yes: • No: • Abstain: Jarkko Kneckt, Nokia

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