Abstract: This article aims to provide a comprehensive analysis of the role and development prospects of direct satellite-to-phone technology in the global communication landscape. It explores the importance, current development status, key technical challenges, future directions, and countermeasures of this technology from multiple dimensions. The article explains the significance and necessity of direct satellite-to-phone technology in the global communication field, discusses its development background and importance as one of the key technologies in the 6G era, and outlines the research objectives, methodology, and structure of the paper. Additionally, the article reviews and analyzes the development history of direct satellite-to-phone technology on a global scale, discusses the key technical points in achieving this technology, and predicts its potential role and development direction in future communication systems from the perspective of 6G network architecture. It also explores new application scenarios and service models that may emerge from technological advancements, as well as their impact on future communication networks. The development history of direct satellite-to-phone technology and its role in current and future communication networks are emphasized, highlighting its value in promoting global communication infrastructure construction. The article also proposes improvement suggestions for existing issues and points out future research directions.

Key words: direct satellite-to-phone technology, 6G, emergency communication, future trends