Special Issue: Artificial Intelligence Across the Communication Stack: Engineering, Human Interaction, and Governance in the 6G Era
Vol. 2 (2026)
Large Language Models as Cognitive Network Agents: Intent-Based Management and Self-Optimization in 6G Communication Systems
Faculty of Mechanical Engineering, University of Niš, Serbia
Abstract
The management of sixth-generation (6G) communication networks demands a level of autonomy, contextual reasoning, and cross-layer decision-making that exceeds the capacity of conventional rule-based network management systems. This paper positions large language models (LLMs) not merely as text-generating systems or benchmark-oriented assistants, but as supervisory cognitive agents within AI-driven communication engineering. The core contribution is a system-level analysis of how LLM agents can translate operator intent, telemetry, alarms, and standards knowledge into verifiable network-control actions affecting network slices, QoS profiles, RAN Intelligent Controller (RIC) xApps/rApps, scheduling policies, and fault-management workflows. The paper reviews telecom-specific LLM adaptation methods, intent-based networking, zero-touch configuration, resource management, and security risks, while evaluating practical relevance through communication engineering metrics such as latency, throughput, spectral efficiency, SLA violation rate, control overhead, and closed-loop stability. Deployment constraints are discussed with explicit attention to O-RAN and 6G control-loop timescales, showing that near-term feasibility lies in management-plane and policy-supervision roles rather than direct sub-millisecond PHY/MAC control.
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