Feedback protocols for near-real-time 5g/6g transmission optimization

Abstract

In 5G and expected 6G networks, beam control is a crucial requirement. Disclosed are methods for user devices to assist a base station in correctly aiming downlink beams toward each user device, and to compensate for Doppler-effect frequency offsets, and to properly adjust the transmission power for adequate reception without generating unnecessary background radiation, among many other transmission parameters to be adjusted in real-time. The feedback messages by be extremely brief, such as a single resource element appended to an acknowledgement message, and may be multiplexed with other beam adjustment requests in a predetermined code. Mobile user devices in an ad-hoc sidelink network can align their beams using such feedback procedures. In a similar way, base stations or core networks can exchange messages with each other (as in wireless backhaul) with frequent feedback-controlled adjustment of the beam parameters, for more efficient exchange of messages between cells.