频率重用技术干扰问题研究

摘要

With the explosive growth of mobile communication and the rapid development of mobile data traffic, many countries around the world began the commercial LTE process. With the further development of LTE, part of the spectrum used by the existing 2G network will be assigned to LTE. It will bring the coexistence interference between LTE and GSM systems, in order to ensure that LTE and GSM systems can both be normally operated, the development of the adjacent channel coexistence protection program is one of the key issues that need to be addressed by refarming technology. In this paper, we deeply study the adjacent channel interference between LTE and GSM systems, put forward the guard-band between the coexistence of different standard of LTE and GSM systems and lay a solid foundation of refarming technology.%　　随着移动通信技术的飞速发展和移动数据业务量的爆发性增长，全球多个国家开始了LTE的商用进程。随着LTE的进一步发展，现有2G网络将有部分频率重用于LTE，这必将带来LTE与GSM系统间的共存干扰，为了保证LTE与GSM系统能够正常运行，制定完善的邻频共存保护方案是频率重用技术需要解决的关键问题之一。本文通过对GSM与LTE系统间的邻频干扰问题进行深入研究，提出了不同LTE制式与GSM共存时的保护间隔方式，为频率重用技术的发展奠定了坚实的基础。