太赫兹频段高速移动场景参考信号方案研究

刘利平; 暴桐; 辛雨; 胡留军

doi:10.11959/j.issn.1000-0801.2024178

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太赫兹频段高速移动场景参考信号方案研究

研究与开发 | 更新时间：2024-09-23

- 太赫兹频段高速移动场景参考信号方案研究
- Research on reference signal scheme for high-mobility scenarios in the Terahertz frequency band
- 电信科学 2024年40卷第8期页码：34-41
- 作者机构：
  
  1.移动网络和移动多媒体技术国家重点实验室，广东深圳 518055
  2.中兴通讯股份有限公司，广东深圳 518057
- 作者简介：
  
  [ "刘利平（1976- ），男，中兴通讯股份有限公司高级工程师，主要研究方向为无线通信新技术。" ]
  [ "暴桐（1992- ），女，中兴通讯股份有限公司工程师，主要研究方向为B5G、6G移动通信波形、调制解调等。" ]
  [ "辛雨（1976- ），男，博士，中兴通讯股份有限公司正高级工程师，主要研究方向为无线通信新技术。" ]
  [ "胡留军（1974- ），男，博士，中兴通讯股份有限公司正高级工程师，主要研究方向为无线通信新技术，负责5G标准演进及6G预研技术规划等。" ]
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2024178
  中图分类号： TN914
- 收稿：2024-03-12，
  
  修回：2024-07-03，
  
  纸质出版：2024-08-20
- 稿件说明：
移动端阅览
刘利平,暴桐,辛雨等.太赫兹频段高速移动场景参考信号方案研究[J].电信科学,2024,40(08):34-41.

LIU Liping,BAO Tong,XIN Yu,et al.Research on reference signal scheme for high-mobility scenarios in the Terahertz frequency band[J].Telecommunications Science,2024,40(08):34-41.
刘利平,暴桐,辛雨等.太赫兹频段高速移动场景参考信号方案研究[J].电信科学,2024,40(08):34-41. DOI： 10.11959/j.issn.1000-0801.2024178.

LIU Liping,BAO Tong,XIN Yu,et al.Research on reference signal scheme for high-mobility scenarios in the Terahertz frequency band[J].Telecommunications Science,2024,40(08):34-41. DOI： 10.11959/j.issn.1000-0801.2024178.

摘要

针对太赫兹频段高速移动场景，提出了一种参考信号方案——增强型离散傅里叶变换扩展正交频分复用（E DFT-s-OFDM）DMRS：将具有循环前缀（CP）和循环后缀（CS）的参考信号序列分割为首部和尾部参考信号序列，然后分别嵌入每个OFDM符号的尾部和首部。这种方案的优点在于，前一个OFDM符号的尾部和后一个OFDM符号的首部构成一个完整的参考信号序列，从而允许接收端在每个OFDM符号间隔内都能进行信道估计，提高了信道估计的精度和实时性。此外，相邻OFDM符号的首部和尾部参考信号序列相同，从而省去了每个OFDM符号的传统循环前缀（CP），提高了频谱效率。仿真结果表明，在太赫兹频段高速移动场景下，与5G NR DFT-s-OFDM波形的DMRS方案相比，该方案的信道估计更精确，通信系统的频谱效率更高。

Abstract

A novel reference signal scheme

E DFT-s-OFDM DMRS was proposed for high-mobility scenarios in the Terahertz band. The proposed scheme involved segmenting the reference signal sequence with cyclic prefix and cyclic suffix into a head and tail reference signal sequence. These sequences were then embedded into the tail and head of each OFDM symbol

respectively. The scheme had the advantage of using a complete reference signal sequence formed by the tail of the preceding OFDM symbol and the head of the following OFDM symbol. This allowed the receiver to perform channel estimation in each OFDM symbol interval

improving the accuracy and real-time performance of channel estimation. Furthermore

adjacent OFDM symbols share identical head and tail reference signal sequences

eliminating the traditional cyclic prefix for each OFDM symbol and improving spectral efficiency. Simulation results demonstrate that this scheme provides more precise channel estimation and greater spectral efficiency than DMRS scheme with 5G NR DFT-s-OFDM waveform for high-mobility scenarios in the Terahertz band.

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Keywords

references

IMT Vision – Framework and overall objectives of the future development of IMT for 2020 and beyond : ITU-R M.2083 [S ] . ITU-R, 2015 .

王妍 , 彭莹 . 国际电信联盟(ITU)6G标准化研究 [J ] . 电信科学 , 2023 , 39 ( 6 ): 129 - 138 .

WANG Y , PENG Y . Research on 6G standardization of International Telecommunications Union(ITU) [J ] . Telecommunications Science , 2023 , 39 ( 6 ): 129 - 138 .

TATARIA H , SHAFI M , MOLISCH A F , et al . 6G wireless systems: vision, requirements, challenges, insights, and opportunities [J ] . Proceedings of the IEEE , 2021 , 109 ( 7 ): 1166 - 1199 .

WEINSTEIN S B . The history of orthogonal frequency-division multiplexing[History of Communications] [J ] . IEEE Communications Magazine , 2009 , 47 ( 11 ): 26 - 35 .

AI B , CHENG X , KÜRNER T , et al . Challenges toward wireless communications for high-speed railway [J ] . IEEE Transactions on Intelligent Transportation Systems , 2014 , 15 ( 5 ): 2143 - 2158 .

HSIEH M H , WEI C H . A low-complexity frame synchronization and frequency offset compensation scheme for OFDM systems over fading channels [J ] . IEEE Transactions on Vehicular Technology , 1999 , 48 ( 5 ): 1596 - 1609 .

ZHAO Y P , HAGGMAN S G . Intercarrier interference self-cancellation scheme for OFDM mobile communication systems [J ] . IEEE Transactions on Communications , 2001 , 49 ( 7 ): 1185 - 1191 .

GUL M M U , MA X L , LEE S . Timing and frequency synchronization for OFDM downlink transmissions using zadoff-Chu sequences [J ] . IEEE Transactions on Wireless Communications , 2015 , 14 ( 3 ): 1716 - 1729 .

HADANI R , RAKIB S , TSATSANIS M , et al . Orthogonal time frequency space modulation [C ] // Proceedings of the 2017 IEEE Wireless Communications and Networking Conference (WCNC) . Piscataway : IEEE Press , 2017 : 1 - 6 .

DAS S S , RANGAMGARI V , TIWARI S , et al . Time domain channel estimation and equalization of CP-OTFS under multiple fractional dopplers and residual synchronization errors [J ] . IEEE Access , 2021 （ 9 ）: 10561 - 10576 .

龙航 , 王森 , 徐林飞 , 等 . OTFS技术研究现状与展望 [J ] . 电信科学 , 2021 , 37 ( 9 ): 57 - 63 .

LONG H , WANG S , XU L F , et al . OTFS technology research and prospect [J ] . Telecommunications Science , 2021 , 37 ( 9 ): 57 - 63 .

RAVITEJA P , PHAN K T , HONG Y , et al . Interference cancellation and iterative detection for orthogonal time frequency space modulation [J ] . IEEE Transactions on Wireless Communications , 2018 , 17 ( 10 ): 6501 - 6515 .

3GPP. NR physical channels and modulation: TS 38.211 [S ] . 2018 .

鲁玉龙 , 沈海燕 , 张俊尧 , 等 . 智能铁路新一代移动通信关键技术探索与展望 [J ] . 电信科学 , 2023 , 39 ( 1 ): 30 - 41 .

LU Y L , SHEN H Y , ZHANG J Y , et al . Exploration and prospect of the key technologies of the new generation mobile communication of intelligent railway [J ] . Telecommunications Science , 2023 , 39 ( 1 ): 30 - 41 .

暴桐 , 辛雨 , 华健 , 等 . 太赫兹频段非均匀分布PTRS方案研究 [J ] . 移动通信 , 2023 , 47 ( 5 ): 52 - 57 .

BAO T , XIN Y , HUA J , et al . Research on the non-uniform distributed PTRS scheme for terahertz frequency band [J ] . Mobile Communications , 2023 , 47 ( 5 ): 52 - 57 .

段向阳 , 辛雨 , 暴桐 , 等 . 一种高频场景候选波形方案 [J ] . 电子与信息学报 , 2021 , 43 ( 1 ): 60 - 67 .

DUAN X Y , XIN Y , BAO T , et al . A candidate waveform scheme for high-frequency scenarios [J ] . Journal of Electronics & Information Technology , 2021 , 43 ( 1 ): 60 - 67 .

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