WO2012095052A3 - 频偏估计和信道估计的方法、装置及系统 - Google Patents

频偏估计和信道估计的方法、装置及系统 Download PDF

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Publication number
WO2012095052A3
WO2012095052A3 PCT/CN2012/071768 CN2012071768W WO2012095052A3 WO 2012095052 A3 WO2012095052 A3 WO 2012095052A3 CN 2012071768 W CN2012071768 W CN 2012071768W WO 2012095052 A3 WO2012095052 A3 WO 2012095052A3
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WO
WIPO (PCT)
Prior art keywords
frequency offset
offset estimation
estimation
channel estimation
received data
Prior art date
Application number
PCT/CN2012/071768
Other languages
English (en)
French (fr)
Other versions
WO2012095052A2 (zh
Inventor
蔡梦
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP12734432.3A priority Critical patent/EP2713572B1/en
Priority to PCT/CN2012/071768 priority patent/WO2012095052A2/zh
Priority to ES12734432.3T priority patent/ES2687128T3/es
Priority to CN201280000169.6A priority patent/CN102742233B/zh
Publication of WO2012095052A2 publication Critical patent/WO2012095052A2/zh
Publication of WO2012095052A3 publication Critical patent/WO2012095052A3/zh
Priority to US14/224,697 priority patent/US9014317B2/en

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Classifications

    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H04B2001/1072—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal by tuning the receiver frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0046—Open loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Radio Transmission System (AREA)

Abstract

本发明实施例提供一种频偏估计和信道估计的方法、装置及系统，涉及无线通信技术领域，提高分布式微波MIMO系统中的频偏估计和信道估计的准确性。一种频偏估计和信道估计的方法，包括：在未获得接收到的数据中的干扰信号时，对接收到的数据进行频偏估计，获得频偏估计结果；在获得接收到的数据中的干扰信号后，根据干扰信号对接收到的数据进行频偏估计，获得频偏估计结果；根据频偏估计结果对接收到的数据进行信道估计，获得信道估计结果；根据频偏估计结果和信道估计结果获得干扰信号，干扰信号作为频偏估计的参数。
PCT/CN2012/071768 2012-02-29 2012-02-29 频偏估计和信道估计的方法、装置及系统 WO2012095052A2 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP12734432.3A EP2713572B1 (en) 2012-02-29 2012-02-29 Method, device, and system for frequency offset estimation and channel estimation
PCT/CN2012/071768 WO2012095052A2 (zh) 2012-02-29 2012-02-29 频偏估计和信道估计的方法、装置及系统
ES12734432.3T ES2687128T3 (es) 2012-02-29 2012-02-29 Método, dispositivo y sistema para la estimación del desplazamiento de frecuencia y la estimación del canal
CN201280000169.6A CN102742233B (zh) 2012-02-29 2012-02-29 频偏估计和信道估计的方法、装置及系统
US14/224,697 US9014317B2 (en) 2012-02-29 2014-03-25 Method, apparatus, and system for frequency offset estimation and channel estimation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/071768 WO2012095052A2 (zh) 2012-02-29 2012-02-29 频偏估计和信道估计的方法、装置及系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/224,697 Continuation US9014317B2 (en) 2012-02-29 2014-03-25 Method, apparatus, and system for frequency offset estimation and channel estimation

Publications (2)

Publication Number Publication Date
WO2012095052A2 WO2012095052A2 (zh) 2012-07-19
WO2012095052A3 true WO2012095052A3 (zh) 2013-02-21

Family

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PCT/CN2012/071768 WO2012095052A2 (zh) 2012-02-29 2012-02-29 频偏估计和信道估计的方法、装置及系统

Country Status (5)

Country Link
US (1) US9014317B2 (zh)
EP (1) EP2713572B1 (zh)
CN (1) CN102742233B (zh)
ES (1) ES2687128T3 (zh)
WO (1) WO2012095052A2 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107409000B (zh) * 2015-04-10 2019-05-28 华为技术有限公司 一种相干光源频偏估计和补偿的相干接收机、方法和系统
WO2017078594A1 (en) * 2015-11-05 2017-05-11 Telefonaktiebolaget Lm Ericsson (Publ) Robust channel estimation for vehicular applications
CN109639423B (zh) * 2019-02-27 2023-03-10 苏州工业园区服务外包职业学院 一种解密算法的构成装置
CN110933009B (zh) * 2019-11-26 2022-04-12 紫光展锐(重庆)科技有限公司 频偏估计方法、系统、电子设备及存储介质
CN113923091A (zh) * 2021-08-25 2022-01-11 珠海全志科技股份有限公司 基于相位加权的偏移干扰检测方法及装置

Citations (4)

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CN1802831A (zh) * 2003-03-28 2006-07-12 英特尔公司 用于ofdm信号的自适应相位补偿的方法和装置
US20080101496A1 (en) * 2006-10-30 2008-05-01 Broadcom Corporation, A California Corporation MIMO channel estimation in presence of carrier frequency offset
CN101304399A (zh) * 2008-04-17 2008-11-12 北京邮电大学 一种多频偏载波同步及信道估计的方法及设备
CN102130874A (zh) * 2010-01-20 2011-07-20 中兴通讯股份有限公司 一种信道估计方法和装置

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US7457232B2 (en) 2004-02-04 2008-11-25 Texas Instruments Incorporated Frequency switched preamble design to minimize channel estimation time in MIMO communications systems
US7480497B2 (en) * 2005-06-29 2009-01-20 Intel Corporation Multicarrier receiver and method for carrier frequency offset correction and channel estimation for receipt of simultaneous transmissions over a multi-user uplink
EP2074774A4 (en) * 2006-09-29 2010-02-10 Nokia Corp METHOD AND DEVICE FOR PROVIDING AN ASSESSMENT OF COMMUNICATION PARAMETERS
US9942078B2 (en) 2009-05-29 2018-04-10 Avago Technologies General Ip (Singapore) Pte. Ltd. Methods and apparatus for simultaneous estimation of frequency offset and channel response for MU-MIMO OFDMA
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Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN1802831A (zh) * 2003-03-28 2006-07-12 英特尔公司 用于ofdm信号的自适应相位补偿的方法和装置
US20080101496A1 (en) * 2006-10-30 2008-05-01 Broadcom Corporation, A California Corporation MIMO channel estimation in presence of carrier frequency offset
CN101304399A (zh) * 2008-04-17 2008-11-12 北京邮电大学 一种多频偏载波同步及信道估计的方法及设备
CN102130874A (zh) * 2010-01-20 2011-07-20 中兴通讯股份有限公司 一种信道估计方法和装置

Also Published As

Publication number Publication date
CN102742233A (zh) 2012-10-17
US9014317B2 (en) 2015-04-21
EP2713572A4 (en) 2014-12-24
EP2713572A2 (en) 2014-04-02
CN102742233B (zh) 2015-05-27
EP2713572B1 (en) 2018-07-11
WO2012095052A2 (zh) 2012-07-19
ES2687128T3 (es) 2018-10-23
US20140205045A1 (en) 2014-07-24

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