Subject Area: Computer Science
The proliferation of 5G networks has revolutionized communication paradigms, introducing unprecedented speeds and connectivity. However, the dense deployment of heterogeneous networks and the surge in data demand have escalated concerns regarding congestion management and quality of service (QoS) assurance. This paper provides an in-depth examination of key facets within the realm of 5G networks, including an overview of heterogeneous networks, QoS metrics, congestion control mechanisms, and pertinent literature reviews. In addition, factors influencing QoS were scrutinized and congestion detections methods were explored, along with strategies for effective congestion control. By identifying research gaps and proposing targeted solutions, this study contributes to the ongoing discourse on congestion management in 5G networks, offering valuable insights for enhancing network efficiency and user experience.