Initial assessment of architectures and hardware resources for a RadioWeaves infrastructure

Location-based Initial Access for Wireless Power Transfer with Physically Large Arrays

“…Channel state estimation can be performed on the first signal sent by an EN device, possibly through backscatter communication [5]. However, in the initial access phase, the EN device has to be supplied with sufficient power to exceed the device sensitivity, i.e., the minimum power required for wake-up and backscatter communication [6]. One possible approach for initial access is beam sweeping, where the transmit array sweeps beams sequentially according to a predefined codebook [7] in order to power up the EN device for the first time.…”