Probe Response with RCPI Information element Sudheer Matta
Probe Response with RCPI Information element Sudheer Matta Trapeze Networks
Motivation • Transmit powers and receiver sensitivities are asymmetric, some deployment considerations mandate that. • A few of the possible cases: – Case 1: AP and station hear each other well. – Case 2: AP can hear the station well, but the station barely hears the AP. – Case 3: station can hear the AP well, but the AP barely hears the station. .
Legend for the subsequent slides • There are 3 circles that depict the coverage area of Transmit and Receive of a given station. • For simplicity the station Tx and Rx coverage area is depicted as the same. • This circle in subsequent slides, describes the station Rx/Tx coverage area. station Tx/Rx
Legend. . contd • This circle describes the access point Tx coverage area. AP Tx • This circle describes the access point Rx coverage area. AP Rx
Case 1 • AP and station hear each other good. Depicted here is only one possible scenario. AP Tx AP Rx station Tx/Rx
Case 2 • AP hears the station, but station barely receives AP Signal AP Rx AP Tx station Tx/Rx
Case 3 • Station receives AP signals good, but the AP barely hears the station. AP Tx AP Rx station Tx/Rx
Proposal • Introduce a new information element or use an existing information element to convey to the station, in the probe response the RCPI of the probe request, that prompted this response.
How this helps • Now the station can take a more informed decision. • In a properly deployed network, clients associate to the best possible AP creating an optimized network.
- Slides: 9