Wireless STA Role Selection for Reliable Sensing Measurements

The patent applies preliminary action by performing role selection based on expected accuracy before the actual sensing measurements are taken. The sensing initiator and responder evaluate their respective expected measurement accuracies in advance, considering factors like transmit power and interference conditions, and pre-determine which device should perform measurements and which should transmit. This advance planning ensures that measurements are performed from the more reliable direction, thereby improving sensing measurement reliability while maintaining operation in license exempt bands.

The patent applies asymmetry by recognizing and exploiting the unsymmetrical interference conditions at the transmitter and receiver sides. Instead of assuming symmetric channel conditions, the invention introduces asymmetric role selection where one device is designated as the sensing initiator and the other as the sensing responder based on their respective expected measurement accuracies. This asymmetric approach ensures that measurements are performed from the direction with better channel conditions, thereby improving measurement precision while maintaining manageable complexity through automated role assignment.