The sixth generation (6G) networks are expected to enable immersive communications and bridge the physical and the virtual worlds. Integrating extended reality, holography, and haptics, immersive communications will revolutionize how people work, entertain, and communicate by enabling lifelike interactions. However, the unprecedented demand for data transmission rate and the stringent requirements on latency and reliability create challenges for 6G networks to support immersive communications. In this survey article, we present the prospect of immersive communications and investigate emerging solutions to the corresponding challenges for 6G. First, we introduce use cases of immersive communications, in the fields of entertainment, education, and healthcare. Second, we present the concepts of immersive communications, including extended reality, haptic communication, and holographic communication, their basic implementation procedures, and their requirements on networks in terms of transmission rate, latency, and reliability. Third, we summarize the potential solutions to addressing the challenges from the aspects of communication, computing, and networking. Finally, we discuss future research directions and conclude this study.

翻译：第六代（6G）网络有望实现沉浸式通信，连接物理世界与虚拟世界。通过融合扩展现实、全息技术及触觉技术，沉浸式通信将借助逼真的交互方式，彻底改变人们的工作、娱乐与沟通模式。然而，对数据传输速率的空前需求，以及对时延与可靠性的严苛要求，给6G网络支持沉浸式通信带来了巨大挑战。本文综述了沉浸式通信的发展前景，并探讨了应对6G相关挑战的新兴解决方案。首先，我们介绍了沉浸式通信在娱乐、教育和医疗领域的应用场景。其次，阐述了沉浸式通信的概念，包括扩展现实、触觉通信和全息通信，其基本实现流程，以及网络在传输速率、时延和可靠性方面的需求。接着，从通信、计算和组网角度总结了应对挑战的潜在方案。最后，讨论了未来研究方向并总结全文。