CN111201730A - 一种选择波形的方法及设备 - Google Patents

一种选择波形的方法及设备 Download PDF

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CN111201730A
CN111201730A CN201780095756.0A CN201780095756A CN111201730A CN 111201730 A CN111201730 A CN 111201730A CN 201780095756 A CN201780095756 A CN 201780095756A CN 111201730 A CN111201730 A CN 111201730A
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signal
noise ratio
target
modulation coding
modulation
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CN111201730B (zh
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陈宝军
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0016—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)

Abstract

一种选择波形的方法及设备，方法包括：获取终端设备发送的上行信号；根据获取的终端设备发送的上行信号测量终端设备使用N个RANK发送上行信号时对应的N个第一信噪比，分别计算每个第一信噪比对应的第一调制编码效率；根据每个第一信噪比对应的第一调制编码效率，分别计算每个RANK对应的第二调制编码效率；从N个RANK对应的第二调制编码效率中，选择目标调制编码效率；根据目标调制编码效率和历史波形确定目标调制编码方式；根据目标RANK和目标调制编码方式确定目标调制方式；根据目标调制方式和所述RANK确定本次为终端设备选择的波形类型，波形类型包括CP‑OFDM或DFT‑S‑OFDM。通过采用本方案，能够为终端设备选择合适的波形，进而提高频谱利用率。

Description

PCT国内申请，说明书已公开。

Claims (16)

  1. PCT国内申请，权利要求书已公开。
CN201780095756.0A 2017-10-23 2017-10-23 一种选择波形的方法及设备 Active CN111201730B (zh)

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CN114665936A (zh) * 2021-08-30 2022-06-24 浪潮软件科技有限公司 一种上行波形的切换方法、装置、设备及可读存储介质
CN114900414A (zh) * 2022-05-11 2022-08-12 瑞斯康达科技发展股份有限公司 一种基站侧上行波形选择方法和基站

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CN111201730B (zh) * 2017-10-23 2021-05-11 华为技术有限公司 一种选择波形的方法及设备
CN112399402B (zh) * 2019-08-16 2023-06-02 华为技术有限公司 一种通信方法、装置及设备
CN111541516B (zh) * 2020-04-17 2023-06-20 郑州融壹达信息技术有限公司 信道编码识别方法、装置、电子装置及存储介质

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CN104125184A (zh) * 2013-04-23 2014-10-29 电信科学技术研究院 一种导频信号的传输方法及设备

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Publication number Priority date Publication date Assignee Title
CN114665936A (zh) * 2021-08-30 2022-06-24 浪潮软件科技有限公司 一种上行波形的切换方法、装置、设备及可读存储介质
CN114900414A (zh) * 2022-05-11 2022-08-12 瑞斯康达科技发展股份有限公司 一种基站侧上行波形选择方法和基站

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US20200244389A1 (en) 2020-07-30
WO2019079936A1 (zh) 2019-05-02
EP3691156B1 (en) 2022-07-20
US11159268B2 (en) 2021-10-26
CN111201730B (zh) 2021-05-11
EP3691156A1 (en) 2020-08-05
EP3691156A4 (en) 2020-09-30
BR112020007988A2 (pt) 2020-10-20

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