| 摘要: |
| 在长期演进（LTE）系统下行链路中，使用短帧传输数据可达到降低通信时延的目的.由于缩短帧的长度会造成系统性能的损失，为权衡系统吞吐量和信道估计质量之间的关系，给出一种新的小区专用参考信号（CRS）映射图样.链路级仿真结果表明：所设计的短帧导频图样在满足LTE系统下行吞吐量要求的同时，可提高信道估计质量并降低系统的误码率. |
| 关键词: 低时延 短帧 导频图样 信道估计 吞吐量 |
| DOI：10.3969/J.ISSN.1000-5137.2019.01.007 |
| 分类号: |
| 基金项目: |
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| The downlink short frame structure and pilot pattern design of long term evolution system |
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XIE Peihao, ZHANG Jing, SU Ying
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College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China
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| Abstract: |
| In this paper,short frame was introduced to transmit data in the long term evolution (LTE) system downlink to reduce communication delay.Since the reduction of the frame length would degrade system performance,a new cell-specific reference signal (CRS) mapping pattern was proposed in order to balance the relationship between the system throughput and the channel estimation quality.Link-level simulation results showed that the proposed method could satisfy system throughput requirement while improving the channel estimation quality and reducing system error rate. |
| Key words: low latency short frame pilot pattern channel estimation system throughput |
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