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针对传统TD-LTE系统干扰方案的不足之处,给出了一种结合TD-LTE系统特性的干扰方案。首先,结合TD-LTE下行参考信号和上行解调参考信号的特点,提出了一种快速检测TD-LTE系统上下行子帧配置的算法。然后,针对TD-LTE系统下行数据资源映射特点,设计了一种TD-LTE系统干扰方案。算法仿真和实际干扰测试结果表明,文中给出的干扰方案与传统方案相比,降低了干扰信号功率,减少了干扰信号发射时间,并具有良好的干扰性能。
Aiming at the shortcomings of the traditional TD-LTE system interference scheme, an interference scheme combining the characteristics of TD-LTE system is given. First, an algorithm for fast detection of uplink and downlink subframe configurations in TD-LTE system is proposed based on the characteristics of TD-LTE downlink reference signal and uplink demodulation reference signal. Then, in view of the characteristics of TD-LTE downlink data resources mapping, a TD-LTE system interference scheme is designed. The simulation results of the algorithm and the actual interference test show that the proposed interference scheme reduces the interference signal power, reduces the interference signal transmission time and has good interference performance compared with the traditional scheme.