Accelerating Reinforcement Learning via Predictive Policy Transfer in 6G RAN Slicing
Why this work is in the frame
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Bibliographic record
Abstract
Reinforcement Learning (RL) algorithms have recently been proposed to solve dynamic radio resource management (RRM) problems in beyond 5G networks. However, RL-based solutions are still not widely adopted in commercial cellular networks. One of the primary reasons for this is the slow convergence of RL agents when they are deployed in a live network and when the network’s context changes significantly. Concurrently, the open radio access network (O-RAN) paradigm promises to give mobile network operators (MNOs) more control over their networks, furthering the need for intelligent and RL-based network management. O-RAN’s standardized interfaces will allow MNOs to make real-time custom changes to intelligently control various RRM functionalities. We consider a RAN slicing scenario in which MNOs can modify the weights of the RL reward function. This enables MNOs to change the priorities of fulfilling the service level agreements of the slices. However, this results in a practical challenge since the RL agent needs to adapt promptly to the changes made by the MNO. This challenge is addressed in this paper, where we first present and discuss the results from an exhaustive experiment to examine the efficiency of using transfer learning (TL) to accelerate the convergence of RL-based RAN slicing in the considered scenario. We then propose a novel <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">predictive</i> approach to enhance the TL-based acceleration by selecting the best-saved policy for reuse. By adopting the proposed policy transfer approach, RL agents are able to converge up to 14000 learning steps faster than their non-accelerated counterparts. The proposed machine learning (ML)-based <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">predictive</i> approach also shows up to a 96.5% accuracy in selecting the best expert policy to reuse for acceleration.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it