Warehouse handheld scanners on a municipal logistics SSID show different power-save air patterns—some PS-Poll, others uAPSD triggers. What should the CWNE's analysis emphasize?
Select an answer to reveal the explanation.
Short Explanation
PS-Poll is knocking on the AP's door for one buffered letter; uAPSD is more like scheduled pickup. Warehouse scanners feel the difference in lag—so name the power-save dialect before you tune.
Full Explanation
Legacy PS-Poll retrieve buffered unicast after TIM indication, while uAPSD/WMM power-save uses trigger frames and scheduled service periods for lower latency delivery. Mixed handheld fleets may exhibit both patterns with different battery and responsiveness trade-offs. Expert MAC analysis differentiates these mechanisms when optimizing municipal warehouse scanner performance rather than treating all power-save as one behavior.