CommGPT: A Graph and Retrieval-Augmented Multimodal Communication Foundation Model

Large Language Models (LLMs) exhibit advanced cognitive and decision-making capabilities, positioning them as a pivotal technology for 6G networks. However, applying LLMs to the communication domain faces three major challenges: 1) Inadequate communication data; 2) Restricted input modalities; and 3) Difficulty in knowledge retrieval. To overcome these issues, we propose CommGPT, a multimodal foundation model designed specifically for communications. First, we create high-quality pretraining and