CN113454939A - 一种探测参考信号的发送方法及相关装置 - Google Patents

一种探测参考信号的发送方法及相关装置 Download PDF

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Publication number
CN113454939A
CN113454939A CN201980092628.XA CN201980092628A CN113454939A CN 113454939 A CN113454939 A CN 113454939A CN 201980092628 A CN201980092628 A CN 201980092628A CN 113454939 A CN113454939 A CN 113454939A
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China
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frequency
carrier
signal
srs
digital
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CN201980092628.XA
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CN113454939B (zh
Inventor
林雁
沈秀勇
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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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/408—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency the transmitter oscillator frequency being identical to the receiver local oscillator frequency
    • 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
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)

Abstract

本申请实施例公开了一种发送探测参考信号SRS方法及相关装置。该方法包括：基于相同频率的本振信号依次对第一数字变频信号和第二数字变频信号进行模拟变频操作，第一数字变频信号对应第一载波上待传输的第一SRS，第二数字变频信号对应第二载波上待传输的第二SRS；在第一时间段内第一载波上传输所述第一SRS，并在第二时间段内第二载波上传输所述第二SRS；其中，第二时间段晚于第一时间段，第一数字变频信号的频率与所述本振信号的频率之和等于第一载波的频率，第二数字变频信号的频率与所述本振信号的频率之和等于第二载波的频率。由于在上述SRS的载波切换过程中，本振信号的频率无需调整，该方案能够降低数据传输中断的时延，以利于提升系统性能。

Description

PCT国内申请，说明书已公开。

Claims (20)

  1. PCT国内申请，权利要求书已公开。
CN201980092628.XA 2019-04-30 2019-04-30 一种探测参考信号的发送方法及相关装置 Active CN113454939B (zh)

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CN114040513A (zh) * 2021-12-13 2022-02-11 哲库科技(北京)有限公司 链路建立方法、装置、终端设备和计算机可读存储介质
CN115133945A (zh) * 2022-05-11 2022-09-30 深圳市有方科技股份有限公司 信号处理装置及方法
WO2023138242A1 (zh) * 2022-01-21 2023-07-27 华为技术有限公司 一种相位测距的方法及相关装置

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EP3982546A4 (en) * 2019-06-29 2022-06-15 Huawei Technologies Co., Ltd. METHOD AND DEVICE FOR WIRELESS COMMUNICATION AND RADIO FREQUENCY SUBSYSTEM
US20210195547A1 (en) * 2019-12-23 2021-06-24 Qualcomm Incorporated Updating cell and timing advance (ta) and/or timing advance group identification (tag-id) per cell in l1/l2-based inter-cell mobility

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WO2020220273A1 (zh) 2020-11-05
CN116707734A (zh) 2023-09-05
EP3944540A1 (en) 2022-01-26
EP3944540A4 (en) 2022-04-13
CN113454939B (zh) 2023-03-03
US20220052816A1 (en) 2022-02-17

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