English

Inference-Driven Uplink for 6G: Architecture, Principles, and Challenges

Signal Processing 2026-02-10 v2

Abstract

Next-generation wireless networks (6G) face a critical uplink challenge arising from stringent device-side resource constraints and the growing demand for intelligence services. This article introduces InferCom, an inference-driven communication architecture designed to enable robust 6G uplink transmission under low signal-to-noise (SNR) conditions. InferCom adopts a compute-asymmetric architecture, featuring a lightweight transmitter and an inference-capable receiver empowered by generative artificial intelligence (GenAI) models, together with a quality-of-experience (QoE)-aware retransmission mechanism. Grounded in the information bottleneck (IB) theory, InferCom redefines uplink communications through task-agnostic compression, inference-driven reconstruction, error-distribution channel coding, and QoE-aware feedback. The case study demonstrates that InferCom outperforms conventional 5G NR and Deep- JSCC in terms of transmitter-side computational complexity, required SNRs and retransmission efficiency. Finally, we outline key challenges and research directions toward making InferCom a practical enabler of human-centric, intelligent and sustainable wireless networks.

Keywords

Cite

@article{arxiv.2508.09348,
  title  = {Inference-Driven Uplink for 6G: Architecture, Principles, and Challenges},
  author = {Chunmei Xu and Zhi Ding and Yi Ma and Rahim Tafazolli and Peiying Zhu},
  journal= {arXiv preprint arXiv:2508.09348},
  year   = {2026}
}
R2 v1 2026-07-01T04:47:13.667Z