| LTE SRS检测与噪声估计研究 |
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| 引用本文： | 赵训威.LTE SRS检测与噪声估计研究[J].电信科学,2012,28(5):88-91. |
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| 作者姓名： | 赵训威 |
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| 作者单位： | 新邮通信设备有限公司 北京 100035 |
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| 摘 要： | LTE系统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SRS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。本文详细给出了基于LTE SRS的信道估计算法,并对其中的噪声及信噪比估计进行重点讨论,最后通过仿真分析了多种典型信道条件下信噪比估计的准确性。
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| 关 键 词： | 长期演进 信道探测参考符号 信道估计 噪声估计 信噪比 |
Research on SRS Signal Detection and Noise Estimation in LTE System |
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| Zhao Xunwei.Research on SRS Signal Detection and Noise Estimation in LTE System[J].Telecommunications Science,2012,28(5):88-91. |
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| Authors: | Zhao Xunwei |
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| Affiliation: | Zhao Xunwei(New Postcom Equipment Co.,Ltd.,Beijing 100035,China) |
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| Abstract: | Sounding reference signal(SRS) is defined in LTE system to acquire the uplink channel information.By SRS-based detection and estimation,uplink channel information can be obtained by the eNode B scheduler to perform resource scheduling for uplink transmission.A robust SRS-based channel estimation algorithm is deduced and especially a novel SINR estimation mothed is proposed in this paper.Finally,simulation results under typical channel scenarios show that the method can ensure the precision of the SINR estimation under various channel situation. |
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| Keywords: | LTE sounding reference signal channel estimation noise estimation SINR |
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