Thank you for your presentation. I have a question about the beamforming configuration time? In slide 8, you mentioned the number of measurements as 512 for REV and 64 for MEP. My question is, how many frames (e.g., OFDM frames, slots) are required to configure the beamforming phase-shift networks for the REV and MEP? And how do you describe the antenna size effect in the time required to configure the beamforming? Does it increase linearly? Thank you in advance for your time.
Thank you for your question. As for your first question, it depends on the measurement accuracy. If the accuracy is sufficient, 512 received signal power values for REV and 64 received signal phase and gain value sets are enough. Assuming 1 received signal power value for a 5G NR radio frame (10 ms), the REV calibration will take more than 5 s in its current procedure. As for the antenna size effect, I think the required measurement time increases, at least, linearly with the number of antenna elements, as you said. If the number of elements increases, we need more efficient or improved calibration method.
