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一种高频场景候选波形方案

段向阳 辛雨 暴桐 华健

段向阳, 辛雨, 暴桐, 华健. 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. doi: 10.11999/JEIT200236
引用本文: 段向阳, 辛雨, 暴桐, 华健. 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. doi: 10.11999/JEIT200236
Xiangyang DUAN, Yu XIN, Tong BAO, Jian HUA. A Candidate Waveform Scheme for High-Frequency Scenarios[J]. Journal of Electronics & Information Technology, 2021, 43(1): 60-67. doi: 10.11999/JEIT200236
Citation: Xiangyang DUAN, Yu XIN, Tong BAO, Jian HUA. A Candidate Waveform Scheme for High-Frequency Scenarios[J]. Journal of Electronics & Information Technology, 2021, 43(1): 60-67. doi: 10.11999/JEIT200236

一种高频场景候选波形方案

doi: 10.11999/JEIT200236
基金项目: 广东省重点领域研发计划(2019B010157001)
详细信息
    作者简介:

    段向阳:男,1973年生,研究方向为无线通信新技术,6G总体技术规划等

    辛雨:男,1976年生,博士,研究方向为6G物理层关键技术等

    暴桐:女,1992年生,硕士,研究方向为太赫兹场景新波形及调制技术等

    华健:男,1991年生,硕士,研究方向为高频场景相位噪声及低峰均比方案等

    通讯作者:

    暴桐 bao.tong@zte.com.cn

  • 中图分类号: TN928

A Candidate Waveform Scheme for High-Frequency Scenarios

Funds: The Key-Area Research and Development Program of Guangdong Province (2019B010157001)
  • 摘要: 针对高频场景(>52.6 GHz)面临的主要问题:路径损耗比较大、功率放大器的效率比较低和相位噪声比较高等,该文设计了一种高频场景候选波形方案。该候选波形方案包括基本符号结构的增强设计、发射端和接收端结构的增强设计,以及尾部序列长度可变方案设计等。相比于5G现有波形DFT-s-OFDM,该文提出的高频场景候选波形方案具有更高的频谱效率。仿真结果显示该候选波形方案具有峰均比低、相位噪声估计效果好和带外泄漏小等优点。
  • 图  1  5G NR现有的波形DFT-s-OFDM和高频场景候选波形时域数据的基本符号结构

    图  2  高频场景候选波形的发射端、接收端结构的增强设计

    图  3  上行链路尾部序列(S1)长度可变方案

    图  4  下行链路尾部序列(S1)长度可变方案

    图  5  高频场景候选波形(E DFT-s-OFDM)与5G现有波形DFT-s-OFDM的PAPR性能比较

    图  6  高频场景候选波形(E DFT-s-OFDM)与5G现有波形DFT-s-OFDM的BLER性能比较

    图  7  高频场景候选波形(E DFT-s-OFDM)与5G现有波形DFT-s-OFDM的PSD比较

    表  1  仿真参数

    参数DFT-s-OFDME DFT-s-OFDM
    调制方案π/2 BPSK
    FFT点数288
    IFFT点数4096
    DMRSZC Sequence(ZadOff-Chu Sequence)
    (S2, S1)序列长度无(有CP)(6,14)
    FDSS无或者根升余弦滤波器,滚降因子:0.3根升余弦滤波器,滚降因子:0.3
    下载: 导出CSV

    表  2  仿真参数

    参数取值
    DFT-s-OFDME DFT-s-OFDM
    天线SISO(Single Input Single Output)
    载频60 GHz
    编码调制方案LDPC(Low Density Parity Check, CodeRate=1/2), 16QAM
    子带带宽24 RB(12 subcarriers per Resource Block)
    子载波间隔960 kHz
    FFT大小4096
    信道类型TDL-A(延时扩展: 10 ns,多普勒频移: 10 Hz)
    CP长度0.037 μs
    (S2和S1)序列长度无(有CP)(6,14)
    DMRSZC Sequence(ZadOff-Chu Sequence)
    PTRS时域密度为1;有4组PTRS,每组含有2个样点
    FDSS根升余弦滤波器,滚降因子:0.3
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-04-03
  • 修回日期:  2020-10-20
  • 网络出版日期:  2020-11-07
  • 刊出日期:  2021-01-15

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