LTE上行探测参考信号噪声估计算法研究
首发时间:2013-03-13
摘要:LTE中定义了信道探测参考信号,用于基站估计上行链路的信道质量。基站基于上行探测参考信号(SRS)的信道估计得到上行信道信息,将获得的信道信息输入调度器作为其上行调度的主要依据。准确地反映信道信息是保证LTE系统传输质量,发挥其优越性的关键。本文分析现有的SRS噪声估计算法的一些不足,结合SRS的特点,提出了一种新的噪声估计算法,并进行了性能仿真。
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The research of noise estimation algorithm on LTE uplink sounding reference signal
Abstract:The LTE defines the channel sounding reference signal, for the base station estimates the uplink channel quality. Base station based on the uplink sounding reference signal (SRS) of the channel estimate to obtain uplink channel information, the scheduler of the obtained channel information input as the main basis of the uplink scheduling. Accurately reflecting the channel information is the key to ensure the transmission quality of the LTE system and its superiority. This paper analyzes some shortcomings of the existing SRS noise estimation algorithm, combines with the characteristics of the SRS, then proposes a new noise estimation algorithm and simulate its performance.
Keywords: SRS SNR channel estimation;noise estimation
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