Abstract
In cellular networks, a user equipment device utilizing multiple transmit antennas might experience high block error rates when a gain imbalance exists between transmission paths. To handle multi-antenna transmissions, conventional approaches might allocate an equal amount of transmission power across available antennas. However, this equal allocation might expend energy on attenuated channels, lowering an overall signal-to-noise ratio at a receiving station.
A method is disclosed that assigns transmit power proportionally based on an evaluated channel quality for each antenna path. The method evaluates a reference signal received power for individual paths and directs a larger portion of transmission power to a stronger channel. By scaling energy output proportionally, received signal strength is increased, spatial diversity is retained, and higher transmission power classes for extended cell coverage is supported.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Suh, Sangwook; Huang, Scott; Chen, Ayrton; Yue, Guosen; Kim, Han; Kim, Taeyoon; Chiang, CP; Wu, Peng; and Hwang, Insoo, "Proportional Transmit Power Allocation Based on Channel Quality in Multi‑Antenna Systems", Technical Disclosure Commons, ()
https://www.tdcommons.org/dpubs_series/10794