基于TD-SCDMA的MBMS技术的研究

Study of MBMS baced on TD-SCDMA system

本文介绍了基于TD-SCDMA系统的MBMS技术现状与发展,对MBMS技术进行了总体介绍,针对基于3GPPMBMS组网方面的主要演进方式SFN(单频网)技术进行了重点的介绍并给出了一定深度的探讨,展望了SFN的一种改进技术,TD-SCDMAMBMS(TD-MBMS)的UTN(同时隙网)技术。本文的主要目的是强调MBMS技术在未来发展和商用中的重要性,基于TD-SCDMA的MBMS技术在物理层上的最主要发展MBSFN技术在实现过程中的改进方法和发展。证明了SFN组网技术在提高频谱效率,减少信令的开销等方面有明显的优势,在SFN技术基础上发展起来的UTN和SFN组网结合的方法的高效性和灵活性。

This paper describes the actuality and development of MBMS based on TD-SCDMA system. Firstly, it gives a total introduce on MBMS system. Then, it mainly makes a detail on the network construct method SFN which based on 3GPP MBMS system. At last, it gives a prospect of a new technology called UTN which is developed from SFN. The main purpose of this paper is to emphasize that the MBMS is very important to the future development and business, and describes MBSFN which is the main development of MBMS in physical layer based on the TD-SCDMA , gives it＇s improved method in reality. It conclude that the UTN and SFN method which developed from the SFN technology own the advantages of high efficiency and flexibility.